diff --git a/404.html b/404.html
index e7465ff6d..f6ad93883 100644
--- a/404.html
+++ b/404.html
@@ -11,7 +11,7 @@
       
       
       <link rel="shortcut icon" href="/ingress-nginx/assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -19,14 +19,14 @@
       
     
     
-      <link rel="stylesheet" href="/ingress-nginx/assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="/ingress-nginx/assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="/ingress-nginx/assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="/ingress-nginx/assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -44,7 +44,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -57,6 +57,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -259,15 +260,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -349,15 +346,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -439,15 +432,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -464,15 +453,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -698,15 +683,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -757,15 +738,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -818,15 +795,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -896,15 +869,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1130,15 +1099,15 @@
       
     </div>
     
-      <script src="/ingress-nginx/assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="/ingress-nginx/assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="/ingress-nginx/assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="/ingress-nginx/assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "/ingress-nginx",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "/ingress-nginx/assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "/ingress-nginx/assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/assets/javascripts/bundle.a45f732b.min.js b/assets/javascripts/bundle.a45f732b.min.js
deleted file mode 100644
index a8eea3aac..000000000
--- a/assets/javascripts/bundle.a45f732b.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
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g=n(0),w=n(95),$=n(97),x=n(116),k=n(99),S=n(48),C=n(101),A=n(90),T=n(106),_=n(107),E=n(104),L=n(91),M=n(108),H=n(92);function R(t,e){var n=e.document$,r=e.viewport$,a=e.location$;"scrollRestoration"in history&&(history.scrollRestoration="manual"),Object(w.a)(window,"beforeunload").subscribe((function(){history.scrollRestoration="auto"}));var o=Object(b.c)('link[rel="shortcut icon"]');void 0!==o&&(o.href=o.href);var u=Object(w.a)(document.body,"click").pipe(Object(k.a)((function(t){return!(t.metaKey||t.ctrlKey)})),Object(p.a)((function(e){if(e.target instanceof HTMLElement){var n=e.target.closest("a");if(n&&!n.target&&Object(b.h)(n)&&t.includes(n.href))return Object(b.g)(n)||e.preventDefault(),Object(j.a)(n)}return c.a})),Object(h.a)((function(t){return{url:new URL(t.href)}})),Object(i.a)());u.subscribe((function(){Object(b.o)("search",!1)}));var f=u.pipe(Object(k.a)((function(t){var 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oldJsonpFunction = jsonpArray.push.bind(jsonpArray);\n \tjsonpArray.push = webpackJsonpCallback;\n \tjsonpArray = jsonpArray.slice();\n \tfor(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);\n \tvar parentJsonpFunction = oldJsonpFunction;\n\n\n \t// add entry module to deferred list\n \tdeferredModules.push([88,1]);\n \t// run deferred modules when ready\n \treturn checkDeferredModules();\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ReplaySubject, Subject, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents must be implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted. This enabled features\n * like instant loading.\n *\n * @return Document subject\n */\nexport function watchDocument(): Subject<Document> {\n  const document$ = new ReplaySubject<Document>()\n  fromEvent(document, \"DOMContentLoaded\")\n    .pipe(\n      mapTo(document)\n    )\n      .subscribe(document$)\n\n  /* Return document */\n  return document$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element or nothing\n */\nexport function getElement<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T | undefined {\n  return node.querySelector<T>(selector) || undefined\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element\n */\nexport function getElementOrThrow<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T {\n  const el = getElement<T>(selector, node)\n  if (typeof el === \"undefined\")\n    throw new ReferenceError(\n      `Missing element: expected \"${selector}\" to be present`\n    )\n  return el\n}\n\n/**\n * Retrieve the currently active element\n *\n * @return Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n  return document.activeElement instanceof HTMLElement\n    ? document.activeElement\n    : undefined\n}\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Elements\n */\nexport function getElements<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T[] {\n  return Array.from(node.querySelectorAll<T>(selector))\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @template T - Tag name type\n *\n * @param tagName - Tag name\n *\n * @return Element\n */\nexport function createElement<\n  T extends keyof HTMLElementTagNameMap\n>(tagName: T): HTMLElementTagNameMap[T] {\n  return document.createElement(tagName)\n}\n\n/**\n * Replace an element with another element\n *\n * @param source - Source element\n * @param target - Target element\n */\nexport function replaceElement(\n  source: HTMLElement, target: Node\n): void {\n  source.replaceWith(target)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, shareReplay, startWith } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element focus\n *\n * @param el - Element\n * @param value - Whether the element should be focused\n */\nexport function setElementFocus(\nel: HTMLElement, value: boolean = true\n): void {\n  if (value)\n    el.focus()\n  else\n    el.blur()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * @param el - Element\n *\n * @return Element focus observable\n */\nexport function watchElementFocus(\n  el: HTMLElement\n): Observable<boolean> {\n  return merge(\n    fromEvent<FocusEvent>(el, \"focus\"),\n    fromEvent<FocusEvent>(el, \"blur\")\n  )\n    .pipe(\n      map(({ type }) => type === \"focus\"),\n      startWith(el === getActiveElement()),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n  x: number                            /* Horizontal offset */\n  y: number                            /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @return Element offset\n */\nexport function getElementOffset(el: HTMLElement): ElementOffset {\n  return {\n    x: el.scrollLeft,\n    y: el.scrollTop\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @return Element offset observable\n */\nexport function watchElementOffset(\n  el: HTMLElement\n): Observable<ElementOffset> {\n  return merge(\n    fromEvent(el, \"scroll\"),\n    fromEvent(window, \"resize\")\n  )\n    .pipe(\n      map(() => getElementOffset(el)),\n      startWith(getElementOffset(el)),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element text selection\n *\n * @param el - Element\n */\nexport function setElementSelection(\n  el: HTMLElement\n): void {\n  if (el instanceof HTMLInputElement)\n    el.select()\n  else\n    throw new Error(\"Not implemented\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ResizeObserver from \"resize-observer-polyfill\"\nimport { Observable, fromEventPattern } from \"rxjs\"\nimport { shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n  width: number                        /* Element width */\n  height: number                       /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @return Element size\n */\nexport function getElementSize(el: HTMLElement): ElementSize {\n  return {\n    width:  el.offsetWidth,\n    height: el.offsetHeight\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * @param el - Element\n *\n * @return Element size observable\n */\nexport function watchElementSize(\n  el: HTMLElement\n): Observable<ElementSize> {\n  return fromEventPattern<ElementSize>(next => {\n    new ResizeObserver(([{ contentRect }]) => next({\n      width:  Math.round(contentRect.width),\n      height: Math.round(contentRect.height)\n    }))\n      .observe(el)\n  })\n    .pipe(\n      startWith(getElementSize(el)),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Key\n */\nexport interface Key {\n  type: string                         /* Key type */\n  claim(): void                        /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n *\n * @return Test result\n */\nexport function isSusceptibleToKeyboard(el: HTMLElement): boolean {\n  switch (el.tagName) {\n\n    /* Form elements */\n    case \"INPUT\":\n    case \"SELECT\":\n    case \"TEXTAREA\":\n      return true\n\n    /* Everything else */\n    default:\n      return el.isContentEditable\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @return Keyboard observable\n */\nexport function watchKeyboard(): Observable<Key> {\n  return fromEvent<KeyboardEvent>(window, \"keydown\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      map(ev => ({\n        type: ev.key,\n        claim() {\n          ev.preventDefault()\n          ev.stopPropagation()\n        }\n      })),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { BehaviorSubject, Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function will return a `URL` object (and not `Location`) in order to\n * normalize typings across the application. Furthermore, locations need to be\n * tracked without setting them and `Location` is a singleton which represents\n * the current location.\n *\n * @return URL\n */\nexport function getLocation(): URL {\n  return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n  location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Check whether a URL is a local link or a file (except `.html`)\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isLocalLocation(\n  url: URL | HTMLAnchorElement,\n  ref: URL | Location = location\n): boolean {\n  return url.host === ref.host\n      && /^(?:\\/[\\w-]+)*(?:\\/?|\\.html)$/i.test(url.pathname)\n}\n\n/**\n * Check whether a URL is an anchor link on the current page\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isAnchorLocation(\n  url: URL | HTMLAnchorElement,\n  ref: URL | Location = location\n): boolean {\n  return url.pathname === ref.pathname\n      && url.hash.length > 0\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @return Location subject\n */\nexport function watchLocation(): Subject<URL> {\n  return new BehaviorSubject<URL>(getLocation())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map, shareReplay, take } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  location$: Observable<URL>           /* Location observable */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location base\n *\n * @return Location base observable\n */\nexport function watchLocationBase(\n  base: string, { location$ }: WatchOptions\n): Observable<string> {\n  return location$\n    .pipe(\n      take(1),\n      map(({ href }) => new URL(base, href)\n        .toString()\n        .replace(/\\/$/, \"\")\n      ),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share, startWith } from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @return Location hash\n */\nexport function getLocationHash(): string {\n  return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n  const el = createElement(\"a\")\n  el.href = hash\n  el.addEventListener(\"click\", ev => ev.stopPropagation())\n  el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @return Location hash observable\n */\nexport function watchLocationHash(): Observable<string> {\n  return fromEvent<HashChangeEvent>(window, \"hashchange\")\n    .pipe(\n      map(getLocationHash),\n      startWith(getLocationHash()),\n      filter(hash => hash.length > 0),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEventPattern } from \"rxjs\"\nimport { shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * @param query - Media query\n *\n * @return Media observable\n */\nexport function watchMedia(query: string): Observable<boolean> {\n  const media = matchMedia(query)\n  return fromEventPattern<boolean>(next =>\n    media.addListener(() => next(media.matches))\n  )\n    .pipe(\n      startWith(media.matches),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n  | \"drawer\"                           /* Toggle for drawer */\n  | \"search\"                           /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record<Toggle, HTMLInputElement> = {\n  drawer: getElementOrThrow(`[data-md-toggle=drawer]`),\n  search: getElementOrThrow(`[data-md-toggle=search]`)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n  return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n  if (toggles[name].checked !== value)\n    toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable<boolean> {\n  const el = toggles[name]\n  return fromEvent(el, \"change\")\n    .pipe(\n      map(() => el.checked),\n      startWith(el.checked)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n  x: number                            /* Horizontal offset */\n  y: number                            /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @return Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n  return {\n    x: Math.max(0, pageXOffset),\n    y: Math.max(0, pageYOffset)\n  }\n}\n\n/**\n * Set viewport offset\n *\n * @param offset - Viewport offset\n */\nexport function setViewportOffset(\n  { x, y }: Partial<ViewportOffset>\n): void {\n  window.scrollTo(x || 0, y || 0)\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @return Viewport offset observable\n */\nexport function watchViewportOffset(): Observable<ViewportOffset> {\n  return merge(\n    fromEvent(window, \"scroll\", { passive: true }),\n    fromEvent(window, \"resize\", { passive: true })\n  )\n    .pipe(\n      map(getViewportOffset),\n      startWith(getViewportOffset())\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n  width: number                        /* Viewport width */\n  height: number                       /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @return Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n  return {\n    width:  innerWidth,\n    height: innerHeight\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @return Viewport size observable\n */\nexport function watchViewportSize(): Observable<ViewportSize> {\n  return fromEvent(window, \"resize\", { passive: true })\n    .pipe(\n      map(getViewportSize),\n      startWith(getViewportSize())\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  shareReplay\n} from \"rxjs/operators\"\n\nimport { Header } from \"components\"\n\nimport {\n  ViewportOffset,\n  watchViewportOffset\n} from \"../offset\"\nimport {\n  ViewportSize,\n  watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n  offset: ViewportOffset               /* Viewport offset */\n  size: ViewportSize                   /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch at options\n */\ninterface WatchAtOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @return Viewport observable\n */\nexport function watchViewport(): Observable<Viewport> {\n  return combineLatest([\n    watchViewportOffset(),\n    watchViewportSize()\n  ])\n    .pipe(\n      map(([offset, size]) => ({ offset, size })),\n      shareReplay(1)\n    )\n}\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @return Viewport observable\n */\nexport function watchViewportAt(\n  el: HTMLElement, { header$, viewport$ }: WatchAtOptions\n): Observable<Viewport> {\n  const size$ = viewport$\n    .pipe(\n      distinctUntilKeyChanged(\"size\")\n    )\n\n  /* Compute element offset */\n  const offset$ = combineLatest([size$, header$])\n    .pipe(\n      map((): ViewportOffset => ({\n        x: el.offsetLeft,\n        y: el.offsetTop\n      }))\n    )\n\n  /* Compute relative viewport, return hot observable */\n  return combineLatest([header$, viewport$, offset$])\n    .pipe(\n      map(([{ height }, { offset, size }, { x, y }]) => ({\n        offset: {\n          x: offset.x - x,\n          y: offset.y - y + height\n        },\n        size\n      })),\n      shareReplay(1)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, fromEventPattern } from \"rxjs\"\nimport {\n  pluck,\n  share,\n  switchMapTo,\n  tap,\n  throttle\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n  type: unknown                        /* Message type */\n  data?: unknown                       /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n  T extends WorkerMessage\n> {\n  tx$: Subject<T>                      /* Message transmission subject */\n  rx$: Observable<T>                   /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions<T extends WorkerMessage> {\n  tx$: Observable<T>                   /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that will send all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @return Worker message observable\n */\nexport function watchWorker<T extends WorkerMessage>(\n  worker: Worker, { tx$ }: WatchOptions<T>\n): Observable<T> {\n\n  /* Intercept messages from worker-like objects */\n  const rx$ = fromEventPattern<MessageEvent>(next =>\n    worker.addEventListener(\"message\", next)\n  )\n    .pipe<T>(\n      pluck(\"data\")\n    )\n\n  /* Send and receive messages, return hot observable */\n  return tx$\n    .pipe(\n      throttle(() => rx$, { leading: true, trailing: true }),\n      tap(message => worker.postMessage(message)),\n      switchMapTo(rx$),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchTransformFn } from \"integrations\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flags\n */\nexport type Feature =\n  | \"tabs\"                             /* Tabs navigation */\n  | \"instant\"                          /* Instant loading\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Configuration\n */\nexport interface Config {\n  base: string                         /* Base URL */\n  features: Feature[]                  /* Feature flags */\n  search: {\n    worker: string                     /* Worker URL */\n    index?: Promise<SearchIndex>       /* Promise resolving with index */\n    transform?: SearchTransformFn      /* Transformation function */\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Ensure that the given value is a valid configuration\n *\n * We could use `jsonschema` or any other schema validation framework, but that\n * would just add more bloat to the bundle, so we'll keep it plain and simple.\n *\n * @param config - Configuration\n *\n * @return Test result\n */\nexport function isConfig(config: any): config is Config {\n  return typeof config === \"object\"\n      && typeof config.base === \"string\"\n      && typeof config.features === \"object\"\n      && typeof config.search === \"object\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// tslint:disable no-null-keyword\n\nimport { JSX as JSXInternal } from \"preact\"\nimport { keys } from \"ramda\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML and SVG attributes\n */\ntype Attributes =\n  & JSXInternal.HTMLAttributes\n  & JSXInternal.SVGAttributes\n  & Record<string, any>\n\n/**\n * Child element\n */\ntype Child =\n  | HTMLElement\n  | SVGElement\n  | Text\n  | string\n  | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @param tagName - HTML or SVG tag\n *\n * @return Element\n */\nfunction createElement(tagName: string): HTMLElement | SVGElement {\n  switch (tagName) {\n\n    /* SVG elements */\n    case \"svg\":\n    case \"path\":\n      return document.createElementNS(\"http://www.w3.org/2000/svg\", tagName)\n\n    /* HTML elements */\n    default:\n      return document.createElement(tagName)\n  }\n}\n\n/**\n * Set an attribute\n *\n * @param el - Element\n * @param name - Attribute name\n * @param value - Attribute value\n */\nfunction setAttribute(\n  el: HTMLElement | SVGElement, name: string, value: string) {\n  switch (name) {\n\n    /* Attributes to be ignored */\n    case \"xmlns\":\n      break\n\n    /* Attributes of SVG elements */\n    case \"viewBox\":\n    case \"d\":\n      if (typeof value !== \"boolean\")\n        el.setAttributeNS(null, name, value)\n      else if (value)\n        el.setAttributeNS(null, name, \"\")\n      break\n\n    /* Attributes of HTML elements */\n    default:\n      if (typeof value !== \"boolean\")\n        el.setAttribute(name, value)\n      else if (value)\n        el.setAttribute(name, \"\")\n  }\n}\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(\n  el: HTMLElement | SVGElement, child: Child | Child[]\n): void {\n\n  /* Handle primitive types (including raw HTML) */\n  if (typeof child === \"string\" || typeof child === \"number\") {\n    el.innerHTML += child.toString()\n\n  /* Handle nodes */\n  } else if (child instanceof Node) {\n    el.appendChild(child)\n\n  /* Handle nested children */\n  } else if (Array.isArray(child)) {\n    for (const node of child)\n      appendChild(el, node)\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @param tagName - HTML or SVG tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @return Element\n */\nexport function h(\n  tagName: string, attributes: Attributes | null, ...children: Child[]\n): HTMLElement | SVGElement {\n  const el = createElement(tagName)\n\n  /* Set attributes, if any */\n  if (attributes)\n    for (const attr of keys(attributes))\n      setAttribute(el, attr, attributes[attr])\n\n  /* Append child nodes */\n  for (const child of children)\n    appendChild(el, child)\n\n  /* Return element */\n  return el\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n  namespace JSX {\n    type Element = HTMLElement | SVGElement\n    type IntrinsicElements = JSXInternal.IntrinsicElements\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, defer, of } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Cache the last value emitted by an observable in session storage\n *\n * If the key is not found in session storage, the factory is executed and the\n * latest value emitted will automatically be persisted to sessions storage.\n * Note that the values emitted by the returned observable must be serializable\n * as `JSON`, or data will be lost.\n *\n * @template T - Value type\n *\n * @param key - Cache key\n * @param factory - Observable factory\n *\n * @return Value observable\n */\nexport function cache<T>(\n  key: string, factory: () => Observable<T>\n): Observable<T> {\n  return defer(() => {\n    const data = sessionStorage.getItem(key)\n    if (data) {\n      return of(JSON.parse(data) as T)\n\n    /* Retrieve value from observable factory and write to storage */\n    } else {\n      const value$ = factory()\n      value$.subscribe(value => {\n        try {\n          sessionStorage.setItem(key, JSON.stringify(value))\n        } catch (err) {\n          /* Uncritical, just swallow */\n        }\n      })\n\n      /* Return value */\n      return value$\n    }\n  })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Translation keys\n */\ntype TranslateKey =\n  | \"clipboard.copy\"                   /* Copy to clipboard */\n  | \"clipboard.copied\"                 /* Copied to clipboard */\n  | \"search.config.lang\"               /* Search language */\n  | \"search.config.pipeline\"           /* Search pipeline */\n  | \"search.config.separator\"          /* Search separator */\n  | \"search.result.placeholder\"        /* Type to start searching */\n  | \"search.result.none\"               /* No matching documents */\n  | \"search.result.one\"                /* 1 matching document */\n  | \"search.result.other\"              /* # matching documents */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Translations\n */\nlet lang: Record<string, string>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Translate the given key\n *\n * @param key - Key to be translated\n * @param value - Value to be replaced\n *\n * @return Translation\n */\nexport function translate(key: TranslateKey, value?: string): string {\n  if (typeof lang === \"undefined\") {\n    const el = getElementOrThrow(\"#__lang\")\n    lang = JSON.parse(el.textContent!)\n  }\n  if (typeof lang[key] === \"undefined\") {\n    throw new ReferenceError(`Invalid translation: ${key}`)\n  }\n  return typeof value !== \"undefined\"\n    ? lang[key].replace(\"#\", value)\n    : lang[key]\n}\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @return Truncated value\n */\nexport function truncate(value: string, n: number): string {\n  let i = n\n  if (value.length > i) {\n    while (value[i] !== \" \" && --i > 0); // tslint:disable-line\n    return `${value.substring(0, i)}...`\n  }\n  return value\n}\n\n/**\n * Round a number for display with source facts\n *\n * This is a reverse engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @return Rounded value\n */\nexport function round(value: number): string {\n  if (value > 999) {\n    const digits = +((value - 950) % 1000 > 99)\n    return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n  } else {\n    return value.toString()\n  }\n}\n\n/**\n * Simple hash function\n *\n * @see https://bit.ly/2wsVjJ4 - Original source\n *\n * @param value - Value to be hashed\n *\n * @return Hash as 32bit integer\n */\nexport function hash(value: string): number {\n    let h = 0\n    for (let i = 0, len = value.length; i < len; i++) {\n      h  = ((h << 5) - h) + value.charCodeAt(i)\n      h |= 0 // Convert to 32bit integer\n    }\n    return h\n  }\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./header\"\nexport * from \"./hero\"\nexport * from \"./main\"\nexport * from \"./navigation\"\nexport * from \"./search\"\nexport * from \"./shared\"\nexport * from \"./tabs\"\nexport * from \"./toc\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as ClipboardJS from \"clipboard\"\nimport { NEVER, Observable, Subject, fromEventPattern } from \"rxjs\"\nimport { mapTo, share, tap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\nimport { renderClipboardButton } from \"templates\"\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  document$: Observable<Document>      /* Document observable */\n  dialog$: Subject<string>             /* Dialog subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up clipboard\n *\n * This function implements the Clipboard.js integration and injects a button\n * into all code blocks when the document changes.\n *\n * @param options - Options\n *\n * @return Clipboard observable\n */\nexport function setupClipboard(\n  { document$, dialog$ }: SetupOptions\n): Observable<ClipboardJS.Event> {\n  if (!ClipboardJS.isSupported())\n    return NEVER\n\n  /* Inject 'copy-to-clipboard' buttons */\n  document$.subscribe(() => {\n    const blocks = getElements(\"pre > code\")\n    blocks.forEach((block, index) => {\n      const parent = block.parentElement!\n      parent.id = `__code_${index}`\n      parent.insertBefore(renderClipboardButton(parent.id), block)\n    })\n  })\n\n  /* Initialize clipboard */\n  const clipboard$ = fromEventPattern<ClipboardJS.Event>(next => {\n    new ClipboardJS(\".md-clipboard\").on(\"success\", next)\n  })\n    .pipe(\n      share()\n    )\n\n  /* Display notification for clipboard event */\n  clipboard$\n    .pipe(\n      tap(ev => ev.clearSelection()),\n      mapTo(translate(\"clipboard.copied\"))\n    )\n      .subscribe(dialog$)\n\n  /* Return clipboard */\n  return clipboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject, animationFrameScheduler, of } from \"rxjs\"\nimport {\n  delay,\n  map,\n  observeOn,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  duration?: number                    /* Display duration (default: 2s) */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up dialog\n *\n * @param options - Options\n *\n * @return Dialog observable\n */\nexport function setupDialog(\n  { duration }: SetupOptions = {}\n): Subject<string> {\n  const dialog$ = new Subject<string>()\n\n  /* Create dialog */\n  const dialog = createElement(\"div\")                                           // TODO: improve scoping\n  dialog.classList.add(\"md-dialog\", \"md-typeset\")\n\n  /* Display dialog */\n  dialog$\n    .pipe(\n      switchMap(text => of(document.body) // useComponent(\"container\")\n        .pipe(\n          map(container => container.appendChild(dialog)),\n          observeOn(animationFrameScheduler),\n          delay(1), // Strangley it doesnt work when we push things to the new animation frame...\n          tap(el => {\n            el.innerHTML = text\n            el.setAttribute(\"data-md-state\", \"open\")\n          }),\n          delay(duration || 2000),\n          tap(el => el.removeAttribute(\"data-md-state\")),\n          delay(400),\n          tap(el => {\n            el.innerHTML = \"\"\n            el.remove()\n          })\n        )\n      )\n    )\n      .subscribe()\n\n  /* Return dialog */\n  return dialog$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, Subject, fromEvent, merge, of } from \"rxjs\"\nimport { ajax } from \"rxjs//ajax\"\nimport {\n  bufferCount,\n  catchError,\n  debounceTime,\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  filter,\n  map,\n  pluck,\n  sample,\n  share,\n  skip,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Viewport,\n  ViewportOffset,\n  getElement,\n  isAnchorLocation,\n  isLocalLocation,\n  replaceElement,\n  setLocation,\n  setLocationHash,\n  setToggle,\n  setViewportOffset\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\ninterface State {\n  url: URL                             /* State URL */\n  offset?: ViewportOffset              /* State viewport offset */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  document$: Subject<Document>         /* Document subject */\n  location$: Subject<URL>              /* Location subject */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n  urls: string[], { document$, viewport$, location$ }: SetupOptions\n): void {\n\n  /* Disable automatic scroll restoration */\n  if (\"scrollRestoration\" in history)\n    history.scrollRestoration = \"manual\"\n\n  /* Hack: ensure that reloads restore viewport offset */\n  fromEvent(window, \"beforeunload\")\n    .subscribe(() => {\n      history.scrollRestoration = \"auto\"\n    })\n\n  /* Hack: ensure absolute favicon link to omit 404s on document switch */\n  const favicon = getElement<HTMLLinkElement>(`link[rel=\"shortcut icon\"]`)\n  if (typeof favicon !== \"undefined\")\n    favicon.href = favicon.href // tslint:disable-line no-self-assignment\n\n  /* Intercept link clicks and convert to state change */\n  const state$ = fromEvent<MouseEvent>(document.body, \"click\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      switchMap(ev => {\n        if (ev.target instanceof HTMLElement) {\n          const el = ev.target.closest(\"a\")\n          if (\n            el && !el.target &&\n            isLocalLocation(el) &&\n            urls.includes(el.href)\n          ) {\n            if (!isAnchorLocation(el))\n              ev.preventDefault()\n            return of(el)\n          }\n        }\n        return NEVER\n      }),\n      map(el => ({ url: new URL(el.href) })),\n      share<State>()\n    )\n\n  /* Always close search on link click */\n  state$.subscribe(() => {\n    setToggle(\"search\", false)\n  })\n\n  /* Filter state changes to dispatch */\n  const push$ = state$\n    .pipe(\n      filter(({ url }) => !isAnchorLocation(url)),\n      share()\n    )\n\n  /* Intercept popstate events (history back and forward) */\n  const pop$ = fromEvent<PopStateEvent>(window, \"popstate\")\n    .pipe(\n      filter(ev => ev.state !== null),\n      map(ev => ({\n        url: new URL(location.href),\n        offset: ev.state\n      })),\n      share<State>()\n    )\n\n  /* Emit location change */\n  merge(push$, pop$)\n    .pipe(\n      distinctUntilChanged((prev, next) => prev.url.href === next.url.href),\n      pluck(\"url\")\n    )\n      .subscribe(location$)\n\n  /* Fetch document on location change */\n  const ajax$ = location$\n    .pipe(\n      distinctUntilKeyChanged(\"pathname\"),\n      skip(1),\n      switchMap(url => ajax({\n        url: url.href,\n        responseType: \"text\",\n        withCredentials: true\n      })\n        .pipe(\n          catchError(() => {\n            setLocation(url)\n            return NEVER\n          })\n        )\n      )\n    )\n\n  /* Set new location as soon as the document was fetched */\n  push$\n    .pipe(\n      sample(ajax$)\n    )\n      .subscribe(({ url }) => {\n        history.pushState({}, \"\", url.toString())\n      })\n\n  /* Parse and emit document */\n  const dom = new DOMParser()\n  ajax$\n    .pipe(\n      map(({ response }) => dom.parseFromString(response, \"text/html\"))\n    )\n      .subscribe(document$)\n\n  /* Intercept instant loading */\n  const instant$ = merge(push$, pop$)\n    .pipe(\n      sample(document$)\n    )\n\n  // TODO: this must be combined with search scroll restoration on mobile\n  instant$.subscribe(({ url, offset }) => {\n    if (url.hash && !offset) {\n      setLocationHash(url.hash)\n    } else {\n      setViewportOffset(offset || { y: 0 })\n    }\n  })\n\n  /* Replace document metadata */\n  instant$\n    .pipe(\n      withLatestFrom(document$)\n    )\n      .subscribe(([, { title, head }]) => {\n        document.dispatchEvent(new CustomEvent(\"DOMContentSwitch\"))\n        document.title = title\n\n        /* Replace meta tags */\n        for (const selector of [\n          `link[rel=\"canonical\"]`,\n          `meta[name=\"author\"]`,\n          `meta[name=\"description\"]`\n        ]) {\n          const next = getElement(selector, head)\n          const prev = getElement(selector, document.head)\n          if (\n            typeof next !== \"undefined\" &&\n            typeof prev !== \"undefined\"\n          ) {\n            replaceElement(prev, next)\n          }\n        }\n      })\n\n  /* Debounce update of viewport offset */\n  viewport$\n    .pipe(\n      debounceTime(250),\n      distinctUntilKeyChanged(\"offset\")\n    )\n      .subscribe(({ offset }) => {\n        history.replaceState(offset, \"\")\n      })\n\n  /* Set viewport offset from history */\n  merge(state$, pop$)\n    .pipe(\n      bufferCount(2, 1),\n      filter(([prev, next]) => {\n        return prev.url.pathname === next.url.pathname\n            && !isAnchorLocation(next.url)\n      }),\n      map(([, state]) => state)\n    )\n      .subscribe(({ offset }) => {\n        setViewportOffset(offset || { y: 0 })\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport {\n  filter,\n  map,\n  share,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Key,\n  getActiveElement,\n  getElement,\n  getElements,\n  getToggle,\n  isSusceptibleToKeyboard,\n  setElementFocus,\n  setElementSelection,\n  setToggle,\n  watchKeyboard\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n  | \"global\"                           /* Global */\n  | \"search\"                           /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard extends Key {\n  mode: KeyboardMode                   /* Keyboard mode */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up keyboard\n *\n * This function will set up the keyboard handlers and ensure that keys are\n * correctly propagated. Currently there are two modes:\n *\n * - `global`: This mode is active when the search is closed. It is intended\n *   to assign hotkeys to specific functions of the site. Currently the search,\n *   previous and next page can be triggered.\n *\n * - `search`: This mode is active when the search is open. It maps certain\n *   navigational keys to offer search results that can be entirely navigated\n *   through keyboard input.\n *\n * The keyboard observable is returned and can be used to monitor the keyboard\n * in order toassign further hotkeys to custom functions.\n *\n * @return Keyboard observable\n */\nexport function setupKeyboard(): Observable<Keyboard> {\n  const keyboard$ = watchKeyboard()\n    .pipe(\n      map<Key, Keyboard>(key => ({\n        mode: getToggle(\"search\") ? \"search\" : \"global\",\n        ...key\n      })),\n      filter(({ mode }) => {\n        if (mode === \"global\") {\n          const active = getActiveElement()\n          if (typeof active !== \"undefined\")\n            return !isSusceptibleToKeyboard(active)\n        }\n        return true\n      }),\n      share()\n    )\n\n  /* Set up search keyboard handlers */\n  keyboard$\n    .pipe(\n      filter(({ mode }) => mode === \"search\"),\n      withLatestFrom(\n        useComponent(\"search-query\"),\n        useComponent(\"search-result\")\n      )\n    )\n      .subscribe(([key, query, result]) => {\n        const active = getActiveElement()\n        switch (key.type) {\n\n          /* Enter: prevent form submission */\n          case \"Enter\":\n            if (active === query)\n              key.claim()\n            break\n\n          /* Escape or Tab: close search */\n          case \"Escape\":\n          case \"Tab\":\n            setToggle(\"search\", false)\n            setElementFocus(query, false)\n            break\n\n          /* Vertical arrows: select previous or next search result */\n          case \"ArrowUp\":\n          case \"ArrowDown\":\n            if (typeof active === \"undefined\") {\n              setElementFocus(query)\n            } else {\n              const els = [query, ...getElements(\"[href]\", result)]\n              const i = Math.max(0, (\n                Math.max(0, els.indexOf(active)) + els.length + (\n                  key.type === \"ArrowUp\" ? -1 : +1\n                )\n              ) % els.length)\n              setElementFocus(els[i])\n            }\n\n            /* Prevent scrolling of page */\n            key.claim()\n            break\n\n          /* All other keys: hand to search query */\n          default:\n            if (query !== getActiveElement())\n              setElementFocus(query)\n        }\n      })\n\n  /* Set up global keyboard handlers */\n  keyboard$\n    .pipe(\n      filter(({ mode }) => mode === \"global\"),\n      withLatestFrom(useComponent(\"search-query\"))\n    )\n      .subscribe(([key, query]) => {\n        switch (key.type) {\n\n          /* Open search and select query */\n          case \"f\":\n          case \"s\":\n          case \"/\":\n            setElementFocus(query)\n            setElementSelection(query)\n            key.claim()\n            break\n\n          /* Go to previous page */\n          case \"p\":\n          case \",\":\n            const prev = getElement(\"[href][rel=prev]\")\n            if (typeof prev !== \"undefined\")\n              prev.click()\n            break\n\n          /* Go to next page */\n          case \"n\":\n          case \".\":\n            const next = getElement(\"[href][rel=next]\")\n            if (typeof next !== \"undefined\")\n              next.click()\n            break\n        }\n      })\n\n  /* Return keyboard */\n  return keyboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, of } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  map,\n  scan,\n  shareReplay,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { getElement, replaceElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component\n */\nexport type Component =\n  | \"announce\"                         /* Announcement bar */\n  | \"container\"                        /* Container */\n  | \"header\"                           /* Header */\n  | \"header-title\"                     /* Header title */\n  | \"hero\"                             /* Hero */\n  | \"main\"                             /* Main area */\n  | \"navigation\"                       /* Navigation */\n  | \"search\"                           /* Search */\n  | \"search-query\"                     /* Search input */\n  | \"search-reset\"                     /* Search reset */\n  | \"search-result\"                    /* Search results */\n  | \"skip\"                             /* Skip link */\n  | \"tabs\"                             /* Tabs */\n  | \"toc\"                              /* Table of contents */\n\n/**\n * Component map\n */\nexport type ComponentMap = {\n  [P in Component]?: HTMLElement\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Component map observable\n */\nlet components$: Observable<ComponentMap>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up bindings to components with given names\n *\n * This function will maintain bindings to the elements identified by the given\n * names in-between document switches and update the elements in-place.\n *\n * @param names - Component names\n * @param options - Options\n */\nexport function setupComponents(\n  names: Component[], { document$ }: WatchOptions\n): void {\n  components$ = document$\n    .pipe(\n\n      /* Build component map */\n      map(document => names.reduce<ComponentMap>((components, name) => {\n        const el = getElement(`[data-md-component=${name}]`, document)\n        return {\n          ...components,\n          ...typeof el !== \"undefined\" ? { [name]: el } : {}\n        }\n      }, {})),\n\n      /* Re-compute component map on document switch */\n      scan((prev, next) => {\n        for (const name of names) {\n          switch (name) {\n\n            /* Top-level components: update */\n            case \"announce\":\n            case \"header-title\":\n            case \"container\":\n            case \"skip\":\n              if (name in prev && typeof prev[name] !== \"undefined\") {\n                replaceElement(prev[name]!, next[name]!)\n                prev[name] = next[name]\n              }\n              break\n\n            /* All other components: rebind */\n            default:\n              if (typeof next[name] !== \"undefined\")\n                prev[name] = getElement(`[data-md-component=${name}]`)\n              else\n                delete prev[name]\n          }\n        }\n        return prev\n      }),\n\n      /* Convert to hot observable */\n      shareReplay(1)\n    )\n}\n\n/**\n * Retrieve a component\n *\n * The returned observable will only re-emit if the element changed, i.e. if\n * it was replaced from a document which was switched to.\n *\n * @template T - Element type\n *\n * @param name - Component name\n *\n * @return Component observable\n */\nexport function useComponent<T extends HTMLInputElement>(\n  name: \"search-query\"\n): Observable<T>\nexport function useComponent<T extends HTMLElement>(\n  name: Component\n): Observable<T>\nexport function useComponent<T extends HTMLElement>(\n  name: Component\n): Observable<T> {\n  return components$\n    .pipe(\n      switchMap(components => (\n        typeof components[name] !== \"undefined\"\n          ? of(components[name] as T)\n          : EMPTY\n      )),\n      distinctUntilChanged()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set anchor blur\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is blurred\n */\nexport function setAnchorBlur(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"blur\" : \"\")\n}\n\n/**\n * Reset anchor blur\n *\n * @param el - Anchor element\n */\nexport function resetAnchorBlur(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set anchor active\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is active\n */\nexport function setAnchorActive(\n  el: HTMLElement, value: boolean\n): void {\n  el.classList.toggle(\"md-nav__link--active\", value)\n}\n\n/**\n * Reset anchor active\n *\n * @param el - Anchor element\n */\nexport function resetAnchorActive(\n  el: HTMLElement\n): void {\n  el.classList.remove(\"md-nav__link--active\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./sidebar\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h, translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  container: \"md-clipboard md-icon\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Path of `file-search-outline` icon\n */\nconst path =\n  \"M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 \" +\n  \"21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @return Element\n */\nexport function renderClipboardButton(\n  id: string\n) {\n  return (\n    <button\n      class={css.container}\n      title={translate(\"clipboard.copy\")}\n      data-clipboard-target={`#${id} > code`}\n    >\n      <svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 24 24\">\n        <path d={path}></path>\n      </svg>\n    </button>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchResult } from \"integrations/search\"\nimport { h, truncate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  item:    \"md-search-result__item\",\n  link:    \"md-search-result__link\",\n  article: \"md-search-result__article md-search-result__article--document\",\n  section: \"md-search-result__article\",\n  title:   \"md-search-result__title\",\n  teaser:  \"md-search-result__teaser\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Path of `content-copy` icon\n */\nconst path =\n  \"M14,2H6A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H13C12.59,21.75 12.2,21.44 \" +\n  \"11.86,21.1C11.53,20.77 11.25,20.4 11,20H6V4H13V9H18V10.18C18.71,10.34 \" +\n  \"19.39,10.61 20,11V8L14,2M20.31,18.9C21.64,16.79 21,14 \" +\n  \"18.91,12.68C16.8,11.35 14,12 12.69,14.08C11.35,16.19 12,18.97 \" +\n  \"14.09,20.3C15.55,21.23 17.41,21.23 \" +\n  \"18.88,20.32L22,23.39L23.39,22L20.31,18.9M16.5,19A2.5,2.5 0 0,1 \" +\n  \"14,16.5A2.5,2.5 0 0,1 16.5,14A2.5,2.5 0 0,1 19,16.5A2.5,2.5 0 0,1 16.5,19Z\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @return Element\n */\nexport function renderSearchResult(\n  { article, sections }: SearchResult\n) {\n\n  /* Render icon */\n  const icon = (\n    <div class=\"md-search-result__icon md-icon\">\n      <svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 24 24\">\n        <path d={path}></path>\n      </svg>\n    </div>\n  )\n\n  /* Render article and sections */\n  const children = [article, ...sections].map(document => {\n    const { location, title, text } = document\n    return (\n      <a href={location} class={css.link} tabIndex={-1}>\n        <article class={\"parent\" in document ? css.section : css.article}>\n          {!(\"parent\" in document) && icon}\n          <h1 class={css.title}>{title}</h1>\n          {text.length > 0 && <p class={css.teaser}>{truncate(text, 320)}</p>}\n        </article>\n      </a>\n    )\n  })\n\n  /* Render search result */\n  return (\n    <li class={css.item}>\n      {children}\n    </li>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"patches/source\"\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  facts: \"md-source__facts\",\n  fact:  \"md-source__fact\"\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render source facts\n *\n * @param facts - Source facts\n *\n * @return Element\n */\nexport function renderSource(\n  facts: SourceFacts\n) {\n  const children = facts.map(fact => (\n    <li class={css.fact}>{fact}</li>\n  ))\n  return (\n    <ul class={css.facts}>\n      {children}\n    </ul>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  wrapper: \"md-typeset__scrollwrap\",\n  table:   \"md-typeset__table\"\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @return Element\n */\nexport function renderTable(\n  table: HTMLTableElement\n) {\n  return (\n    <div class={css.wrapper}>\n      <div class={css.table}>\n        {table}\n      </div>\n    </div>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar offset\n *\n * @param el - Sidebar element\n * @param value - Sidebar offset\n */\nexport function setSidebarOffset(\n  el: HTMLElement, value: number\n): void {\n  el.style.top = `${value}px`\n}\n\n/**\n * Reset sidebar offset\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarOffset(\n  el: HTMLElement\n): void {\n  el.style.top = \"\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar height\n *\n * @param el - Sidebar element\n * @param value - Sidebar height\n */\nexport function setSidebarHeight(\n  el: HTMLElement, value: number\n): void {\n  el.style.height = `${value}px`\n}\n\n/**\n * Reset sidebar height\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarHeight(\n  el: HTMLElement\n): void {\n  el.style.height = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  ArticleDocument,\n  SearchDocumentMap,\n  SectionDocument,\n  setupSearchDocumentMap\n} from \"../document\"\nimport {\n  SearchHighlightFactoryFn,\n  setupSearchHighlighter\n} from \"../highlighter\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n  lang: string[]                       /* Search languages */\n  separator: string                    /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n  location: string                     /* Document location */\n  title: string                        /* Document title */\n  text: string                         /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n  | \"stemmer\"                          /* Stemmer */\n  | \"stopWordFilter\"                   /* Stop word filter */\n  | \"trimmer\"                          /* Trimmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n  config: SearchIndexConfig            /* Search index configuration */\n  docs: SearchIndexDocument[]          /* Search index documents */\n  index?: object | string              /* Prebuilt or serialized index */\n  pipeline?: SearchIndexPipeline       /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n  article: ArticleDocument             /* Article document */\n  sections: SectionDocument[]          /* Section documents */\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n  /**\n   * Search document mapping\n   *\n   * A mapping of URLs (including hash fragments) to the actual articles and\n   * sections of the documentation. The search document mapping must be created\n   * regardless of whether the index was prebuilt or not, as `lunr` itself will\n   * only store the actual index.\n   */\n  protected documents: SearchDocumentMap\n\n  /**\n   * Search highlight factory function\n   */\n  protected highlight: SearchHighlightFactoryFn\n\n  /**\n   * The `lunr` search index\n   */\n  protected index: lunr.Index\n\n  /**\n   * Create the search integration\n   *\n   * @param data - Search index\n   */\n  public constructor({ config, docs, pipeline, index }: SearchIndex) {\n    this.documents = setupSearchDocumentMap(docs)\n    this.highlight = setupSearchHighlighter(config)\n\n    /* If no index was given, create it */\n    if (typeof index === \"undefined\") {\n      this.index = lunr(function() {\n        pipeline = pipeline || [\"trimmer\", \"stopWordFilter\"]\n\n        /* Set up alternate search languages */\n        if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n          this.use((lunr as any)[config.lang[0]])\n        } else if (config.lang.length > 1) {\n          this.use((lunr as any).multiLanguage(...config.lang))\n        }\n\n        /* Set up pipeline according to configuration */\n        this.pipeline.reset()\n        for (const fn of pipeline)\n          this.pipeline.add(lunr[fn])\n\n        /* Set up search pipeline according to configuration */\n        this.searchPipeline.reset()\n        for (const fn of pipeline)\n          this.searchPipeline.add(lunr[fn])\n\n        /* Set up fields and reference */\n        this.field(\"title\", { boost: 1000 })\n        this.field(\"text\")\n        this.ref(\"location\")\n\n        /* Index documents */\n        for (const doc of docs)\n          this.add(doc)\n      })\n\n    /* Prebuilt or serialized index */\n    } else {\n      this.index = lunr.Index.load(\n        typeof index === \"string\"\n          ? JSON.parse(index)\n          : index\n      )\n    }\n  }\n\n  /**\n   * Search for matching documents\n   *\n   * The search index which MkDocs provides is divided up into articles, which\n   * contain the whole content of the individual pages, and sections, which only\n   * contain the contents of the subsections obtained by breaking the individual\n   * pages up at `h1` ... `h6`. As there may be many sections on different pages\n   * with identical titles (for example within this very project, e.g. \"Usage\"\n   * or \"Installation\"), they need to be put into the context of the containing\n   * page. For this reason, section results are grouped within their respective\n   * articles which are the top-level results that are returned.\n   *\n   * @param value - Query value\n   *\n   * @return Search results\n   */\n  public query(value: string): SearchResult[] {\n    if (value) {\n      try {\n\n        /* Group sections by containing article */\n        const groups = this.index.search(value)\n          .reduce((results, result) => {\n            const document = this.documents.get(result.ref)\n            if (typeof document !== \"undefined\") {\n              if (\"parent\" in document) {\n                const ref = document.parent.location\n                results.set(ref, [...results.get(ref) || [], result])\n              } else {\n                const ref = document.location\n                results.set(ref, results.get(ref) || [])\n              }\n            }\n            return results\n          }, new Map<string, lunr.Index.Result[]>())\n\n        /* Create highlighter for query */\n        const fn = this.highlight(value)\n\n        /* Map groups to search documents */\n        return [...groups].map(([ref, sections]) => ({\n          article: fn(this.documents.get(ref) as ArticleDocument),\n          sections: sections.map(section => {\n            return fn(this.documents.get(section.ref) as SectionDocument)\n          })\n        }))\n\n      /* Log errors to console (for now) */\n      } catch (err) {\n        // tslint:disable-next-line no-console\n        console.warn(`Invalid query: ${value} – see https://bit.ly/2s3ChXG`)\n      }\n    }\n\n    /* Return nothing in case of error or empty query */\n    return []\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * A top-level article\n */\nexport interface ArticleDocument extends SearchIndexDocument {\n  linked: boolean                      /* Whether the section was linked */\n}\n\n/**\n * A section of an article\n */\nexport interface SectionDocument extends SearchIndexDocument {\n  parent: ArticleDocument              /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport type SearchDocument =\n  | ArticleDocument\n  | SectionDocument\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map<string, SearchDocument>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n  docs: SearchIndexDocument[]\n): SearchDocumentMap {\n  const documents = new Map<string, SearchDocument>()\n  for (const doc of docs) {\n    const [path, hash] = doc.location.split(\"#\")\n\n    /* Extract location and title */\n    const location = doc.location\n    const title    = doc.title\n\n    /* Escape and cleanup text */\n    const text = escapeHTML(doc.text)\n      .replace(/\\s+(?=[,.:;!?])/g, \"\")\n      .replace(/\\s+/g, \" \")\n\n    /* Handle section */\n    if (hash) {\n      const parent = documents.get(path) as ArticleDocument\n\n      /* Ignore first section, override article */\n      if (!parent.linked) {\n        parent.title  = doc.title\n        parent.text   = text\n        parent.linked = true\n\n      /* Add subsequent section */\n      } else {\n        documents.set(location, {\n          location,\n          title,\n          text,\n          parent\n        })\n      }\n\n    /* Add article */\n    } else {\n      documents.set(location, {\n        location,\n        title,\n        text,\n        linked: false\n      })\n    }\n  }\n  return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\nimport { SearchDocument } from \"../document\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @template T - Search document type\n *\n * @param document - Search document\n *\n * @return Highlighted document\n */\nexport type SearchHighlightFn = <\n  T extends SearchDocument\n>(document: Readonly<T>) => T\n\n/**\n * Search highlight factory function\n *\n * @param value - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (value: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n  config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n  const separator = new RegExp(config.separator, \"img\")\n  const highlight = (_: unknown, data: string, term: string) => {\n    return `${data}<em>${term}</em>`\n  }\n\n  /* Return factory function */\n  return (value: string) => {\n    value = value\n      .replace(/[\\s*+-:~^]+/g, \" \")\n      .trim()\n\n    /* Create search term match expression */\n    const match = new RegExp(`(^|${config.separator})(${\n      value\n        .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n        .replace(separator, \"|\")\n    })`, \"img\")\n\n    /* Highlight document */\n    return document => ({\n      ...document,\n      title: document.title.replace(match, highlight),\n      text:  document.text.replace(match, highlight)\n    })\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * Rogue control characters are filtered before handing the query to the\n * search index, as `lunr` will throw otherwise.\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport function defaultTransform(value: string): string {\n  return value\n    .replace(/(?:^|\\s+)[*+-:^~]+(?=\\s+|$)/g, \"\")\n    .trim()\n    .replace(/\\s+|\\b$/g, \"* \")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n  SETUP,                               /* Search index setup */\n  READY,                               /* Search index ready */\n  QUERY,                               /* Search query */\n  RESULT                               /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n  type: SearchMessageType.SETUP        /* Message type */\n  data: SearchIndex                    /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n  type: SearchMessageType.READY       /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n  type: SearchMessageType.QUERY        /* Message type */\n  data: string                         /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n  type: SearchMessageType.RESULT       /* Message type */\n  data: SearchResult[]                 /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n  | SearchSetupMessage\n  | SearchReadyMessage\n  | SearchQueryMessage\n  | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n  message: SearchMessage\n): message is SearchSetupMessage {\n  return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n  message: SearchMessage\n): message is SearchReadyMessage {\n  return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n  message: SearchMessage\n): message is SearchQueryMessage {\n  return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n  message: SearchMessage\n): message is SearchResultMessage {\n  return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, Subject, asyncScheduler } from \"rxjs\"\nimport {\n  map,\n  observeOn,\n  shareReplay,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchWorker } from \"browser\"\nimport { translate } from \"utilities\"\n\nimport { SearchIndex, SearchIndexPipeline } from \"../../_\"\nimport {\n  SearchMessage,\n  SearchMessageType,\n  SearchSetupMessage,\n  isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  index$: Observable<SearchIndex>      /* Search index observable */\n  base$: Observable<string>            /* Location base observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @return Search index\n */\nfunction setupSearchIndex(\n  { config, docs, index }: SearchIndex\n): SearchIndex {\n\n  /* Override default language with value from translation */\n  if (config.lang.length === 1 && config.lang[0] === \"en\")\n    config.lang = [translate(\"search.config.lang\")]\n\n  /* Override default separator with value from translation */\n  if (config.separator === \"[\\s\\-]+\")\n    config.separator = translate(\"search.config.separator\")\n\n  /* Set pipeline from translation */\n  const pipeline = translate(\"search.config.pipeline\")\n    .split(/\\s*,\\s*/)\n    .filter(identity) as SearchIndexPipeline\n\n  /* Return search index after defaulting */\n  return { config, docs, index, pipeline }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search web worker\n *\n * This function will create a web worker to set up and query the search index\n * which is done using `lunr`. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param options - Options\n *\n * @return Worker handler\n */\nexport function setupSearchWorker(\n  url: string, { index$, base$ }: SetupOptions\n): WorkerHandler<SearchMessage> {\n  const worker = new Worker(url)\n\n  /* Create communication channels and resolve relative links */\n  const tx$ = new Subject<SearchMessage>()\n  const rx$ = watchWorker(worker, { tx$ })\n    .pipe(\n      withLatestFrom(base$),\n      map(([message, base]) => {\n        if (isSearchResultMessage(message)) {\n          for (const { article, sections } of message.data) {\n            article.location = `${base}/${article.location}`\n            for (const section of sections)\n              section.location = `${base}/${section.location}`\n          }\n        }\n        return message\n      }),\n      shareReplay(1)\n    )\n\n  /* Set up search index */\n  index$\n    .pipe(\n      map<SearchIndex, SearchSetupMessage>(index => ({\n        type: SearchMessageType.SETUP,\n        data: setupSearchIndex(index)\n      })),\n      observeOn(asyncScheduler)\n    )\n      .subscribe(tx$.next.bind(tx$))\n\n  /* Return worker handler */\n  return { tx$, rx$ }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  finalize,\n  map,\n  observeOn,\n  tap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { Main } from \"../../../main\"\nimport { Sidebar } from \"../_\"\nimport {\n  resetSidebarHeight,\n  resetSidebarOffset,\n  setSidebarHeight,\n  setSidebarOffset\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n  header$: Observable<Header>          /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Sidebar observable\n */\nexport function watchSidebar(\n  el: HTMLElement, { main$, viewport$ }: WatchOptions\n): Observable<Sidebar> {\n  const adjust = el.parentElement!.offsetTop\n               - el.parentElement!.parentElement!.offsetTop\n\n  /* Compute the sidebar's available height and if it should be locked */\n  return combineLatest([main$, viewport$])\n    .pipe(\n      map(([{ offset, height }, { offset: { y } }]) => {\n        height = height\n          + Math.min(adjust, Math.max(0, y - offset))\n          - adjust\n        return {\n          height,\n          lock: y >= offset + adjust\n        }\n      }),\n      distinctUntilChanged<Sidebar>((a, b) => {\n        return a.height === b.height\n            && a.lock   === b.lock\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply sidebar\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySidebar(\n  el: HTMLElement, { header$ }: ApplyOptions\n): MonoTypeOperatorFunction<Sidebar> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    withLatestFrom(header$),\n    tap(([{ height, lock }, { height: offset }]) => {\n      setSidebarHeight(el, height)\n\n      /* Set offset in locked state depending on header height */\n      if (lock)\n        setSidebarOffset(el, offset)\n      else\n        resetSidebarOffset(el)\n    }),\n\n    /* Re-map to sidebar */\n    map(([sidebar]) => sidebar),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetSidebarOffset(el)\n      resetSidebarHeight(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./anchor\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  Observable,\n  OperatorFunction,\n  combineLatest,\n  of,\n  pipe\n} from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../../main\"\nimport {\n  Sidebar,\n  applySidebar,\n  watchSidebar\n} from \"../../shared\"\nimport {\n  AnchorList,\n  applyAnchorList,\n  watchAnchorList\n} from \"../anchor\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents for [tablet -]\n */\ninterface TableOfContentsBelowTablet {} // tslint:disable-line\n\n/**\n * Table of contents for [tablet +]\n */\ninterface TableOfContentsAboveTablet {\n  sidebar: Sidebar                     /* Sidebar */\n  anchors: AnchorList                  /* Anchor list */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport type TableOfContents =\n  | TableOfContentsBelowTablet\n  | TableOfContentsAboveTablet\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  tablet$: Observable<boolean>         /* Tablet media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTableOfContents(\n  { header$, main$, viewport$, tablet$ }: MountOptions\n): OperatorFunction<HTMLElement, TableOfContents> {\n  return pipe(\n    switchMap(el => tablet$\n      .pipe(\n        switchMap(tablet => {\n\n          /* [tablet +]: Mount table of contents in sidebar */\n          if (tablet) {\n            const els = getElements<HTMLAnchorElement>(\".md-nav__link\", el)\n\n            /* Watch and apply sidebar */\n            const sidebar$ = watchSidebar(el, { main$, viewport$ })\n              .pipe(\n                applySidebar(el, { header$ })\n              )\n\n            /* Watch and apply anchor list (scroll spy) */\n            const anchors$ = watchAnchorList(els, { header$, viewport$ })\n              .pipe(\n                applyAnchorList(els)\n              )\n\n            /* Combine into single hot observable */\n            return combineLatest([sidebar$, anchors$])\n              .pipe(\n                map(([sidebar, anchors]) => ({ sidebar, anchors }))\n              )\n\n          /* [tablet -]: Unmount table of contents */\n          } else {\n            return of({})\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { reverse } from \"ramda\"\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  bufferCount,\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  finalize,\n  map,\n  observeOn,\n  scan,\n  startWith,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { Viewport, getElement, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { AnchorList } from \"../_\"\nimport {\n  resetAnchorActive,\n  resetAnchorBlur,\n  setAnchorActive,\n  setAnchorBlur\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch anchor list\n *\n * This is effectively a scroll-spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the anchor list needs\n * to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param els - Anchor elements\n * @param options - Options\n *\n * @return Anchor list observable\n */\nexport function watchAnchorList(\n  els: HTMLAnchorElement[], { header$, viewport$ }: WatchOptions\n): Observable<AnchorList> {\n  const table = new Map<HTMLAnchorElement, HTMLElement>()\n  for (const el of els) {\n    const id = decodeURIComponent(el.hash.substring(1))\n    const target = getElement(`[id=\"${id}\"]`)\n    if (typeof target !== \"undefined\")\n      table.set(el, target)\n  }\n\n  /* Compute necessary adjustment for header */\n  const adjust$ = header$\n    .pipe(\n      map(header => 18 + header.height)\n    )\n\n  /* Compute partition of previous and next anchors */\n  const partition$ = watchElementSize(document.body)\n    .pipe(\n      distinctUntilKeyChanged(\"height\"),\n\n      /* Build index to map anchor paths to vertical offsets */\n      map(() => {\n        let path: HTMLAnchorElement[] = []\n        return [...table].reduce((index, [anchor, target]) => {\n          while (path.length) {\n            const last = table.get(path[path.length - 1])!\n            if (last.tagName >= target.tagName) {\n              path.pop()\n            } else {\n              break\n            }\n          }\n\n          /* If the current anchor is hidden, continue with its parent */\n          let offset = target.offsetTop\n          while (!offset && target.parentElement) {\n            target = target.parentElement\n            offset = target.offsetTop\n          }\n\n          /* Map reversed anchor path to vertical offset */\n          return index.set(\n            reverse(path = [...path, anchor]),\n            offset\n          )\n        }, new Map<HTMLAnchorElement[], number>())\n      }),\n\n      /* Re-compute partition when viewport offset changes */\n      switchMap(index => combineLatest([adjust$, viewport$])\n        .pipe(\n          scan(([prev, next], [adjust, { offset: { y } }]) => {\n\n            /* Look forward */\n            while (next.length) {\n              const [, offset] = next[0]\n              if (offset - adjust < y) {\n                prev = [...prev, next.shift()!]\n              } else {\n                break\n              }\n            }\n\n            /* Look backward */\n            while (prev.length) {\n              const [, offset] = prev[prev.length - 1]\n              if (offset - adjust >= y) {\n                next = [prev.pop()!, ...next]\n              } else {\n                break\n              }\n            }\n\n            /* Return partition */\n            return [prev, next]\n          }, [[], [...index]]),\n          distinctUntilChanged((a, b) => {\n            return a[0] === b[0]\n                && a[1] === b[1]\n          })\n        )\n      )\n    )\n\n  /* Compute and return anchor list migrations */\n  return partition$\n    .pipe(\n      map(([prev, next]) => ({\n        prev: prev.map(([path]) => path),\n        next: next.map(([path]) => path)\n      })),\n\n      /* Extract anchor list migrations */\n      startWith({ prev: [], next: [] }),\n      bufferCount(2, 1),\n      map(([a, b]) => {\n\n        /* Moving down */\n        if (a.prev.length < b.prev.length) {\n          return {\n            prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n            next: []\n          }\n\n        /* Moving up */\n        } else {\n          return {\n            prev: b.prev.slice(-1),\n            next: b.next.slice(0, b.next.length - a.next.length)\n          }\n        }\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply anchor list\n *\n * @param els - Anchor elements\n *\n * @return Operator function\n */\nexport function applyAnchorList(\n  els: HTMLAnchorElement[]\n): MonoTypeOperatorFunction<AnchorList> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ prev, next }) => {\n\n      /* Look forward */\n      for (const [el] of next) {\n        resetAnchorActive(el)\n        resetAnchorBlur(el)\n      }\n\n      /* Look backward */\n      prev.forEach(([el], index) => {\n        setAnchorActive(el, index === prev.length - 1)\n        setAnchorBlur(el, true)\n      })\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      for (const el of els) {\n        resetAnchorActive(el)\n        resetAnchorBlur(el)\n      }\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n  filter,\n  map,\n  mapTo,\n  sample,\n  startWith,\n  switchMap,\n  take\n} from \"rxjs/operators\"\n\nimport { WorkerHandler } from \"browser\"\nimport {\n  SearchMessage,\n  SearchResult,\n  isSearchQueryMessage,\n  isSearchReadyMessage\n} from \"integrations/search\"\n\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search status\n */\nexport type SearchStatus =\n  | \"waiting\"                          /* Search waiting for initialization */\n  | \"ready\"                            /* Search ready */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport interface Search {\n  status: SearchStatus                 /* Search status */\n  query: SearchQuery                   /* Search query */\n  result: SearchResult[]               /* Search result list */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  query$: Observable<SearchQuery>      /* Search query observable */\n  reset$: Observable<void>             /* Search reset observable */\n  result$: Observable<SearchResult[]>  /* Search result observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearch(\n  { rx$, tx$ }: WorkerHandler<SearchMessage>,\n  { query$, reset$, result$ }: MountOptions\n): OperatorFunction<HTMLElement, Search> {\n  return pipe(\n    switchMap(() => {\n\n      /* Compute search status */\n      const status$ = rx$\n        .pipe(\n          filter(isSearchReadyMessage),\n          mapTo<SearchStatus>(\"ready\"),\n          startWith(\"waiting\")\n        ) as Observable<SearchStatus>\n\n      /* Re-emit the latest query when search is ready */\n      tx$\n        .pipe(\n          filter(isSearchQueryMessage),\n          sample(status$),\n          take(1)\n        )\n          .subscribe(tx$.next.bind(tx$))\n\n      /* Combine into single observable */\n      return combineLatest([status$, query$, result$, reset$])\n        .pipe(\n          map(([status, query, result]) => ({\n            status,\n            query,\n            result\n          }))\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, setToggle } from \"browser\"\nimport {\n  SearchMessage,\n  SearchMessageType,\n  SearchQueryMessage,\n  SearchTransformFn\n} from \"integrations\"\n\nimport { watchSearchQuery } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n  value: string                        /* Query value */\n  focus: boolean                       /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  transform?: SearchTransformFn        /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search query from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchQuery(\n  { tx$ }: WorkerHandler<SearchMessage>, options: MountOptions = {}\n): OperatorFunction<HTMLInputElement, SearchQuery> {\n  return pipe(\n    switchMap(el => {\n      const query$ = watchSearchQuery(el, options)\n\n      /* Subscribe worker to search query */\n      query$\n        .pipe(\n          distinctUntilKeyChanged(\"value\"),\n          map(({ value }): SearchQueryMessage => ({\n            type: SearchMessageType.QUERY,\n            data: value\n          }))\n        )\n          .subscribe(tx$.next.bind(tx$))\n\n      /* Toggle search on focus */\n      query$\n        .pipe(\n          distinctUntilKeyChanged(\"focus\")\n        )\n          .subscribe(({ focus }) => {\n            if (focus)\n              setToggle(\"search\", focus)\n          })\n\n      /* Return search query */\n      return query$\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest, fromEvent, merge } from \"rxjs\"\nimport {\n  delay,\n  distinctUntilChanged,\n  map,\n  startWith\n} from \"rxjs/operators\"\n\nimport { watchElementFocus } from \"browser\"\nimport { SearchTransformFn, defaultTransform } from \"integrations\"\n\nimport { SearchQuery } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  transform?: SearchTransformFn        /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n * @param options - Options\n *\n * @return Search query observable\n */\nexport function watchSearchQuery(\n  el: HTMLInputElement, { transform }: WatchOptions = {}\n): Observable<SearchQuery> {\n  const fn = transform || defaultTransform\n\n  /* Intercept keyboard events */\n  const value$ = merge(\n    fromEvent(el, \"keyup\"),\n    fromEvent(el, \"focus\").pipe(delay(1))\n  )\n    .pipe(\n      map(() => fn(el.value)),\n      startWith(fn(el.value)),\n      distinctUntilChanged()\n    )\n\n  /* Intercept focus events */\n  const focus$ = watchElementFocus(el)\n\n  /* Combine into single observable */\n  return combineLatest([value$, focus$])\n    .pipe(\n      map(([value, focus]) => ({ value, focus }))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n  mapTo,\n  startWith,\n  switchMap,\n  switchMapTo,\n  tap\n} from \"rxjs/operators\"\n\nimport { setElementFocus } from \"browser\"\n\nimport { useComponent } from \"../../../_\"\nimport { watchSearchReset } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search reset from source observable\n *\n * @return Operator function\n */\nexport function mountSearchReset(): OperatorFunction<HTMLElement, void> {\n  return pipe(\n    switchMap(el => watchSearchReset(el)\n      .pipe(\n        switchMapTo(useComponent(\"search-query\")),\n        tap(setElementFocus),\n        mapTo(undefined)\n      )\n    ),\n    startWith(undefined)\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search reset\n *\n * @param el - Search reset element\n *\n * @return Search reset observable\n */\nexport function watchSearchReset(\n  el: HTMLElement\n): Observable<void> {\n  return fromEvent(el, \"click\")\n    .pipe(\n      mapTo(undefined)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set number of search results\n *\n * @param el - Search result metadata element\n * @param value - Number of results\n */\nexport function setSearchResultMeta(\n  el: HTMLElement, value: number\n): void {\n  switch (value) {\n\n    /* No results */\n    case 0:\n      el.textContent = translate(\"search.result.none\")\n      break\n\n    /* One result */\n    case 1:\n      el.textContent = translate(\"search.result.one\")\n      break\n\n    /* Multiple result */\n    default:\n      el.textContent = translate(\"search.result.other\", value.toString())\n  }\n}\n\n/**\n * Reset number of search results\n *\n * @param el - Search result metadata element\n */\nexport function resetSearchResultMeta(\n  el: HTMLElement\n): void {\n  el.textContent = translate(\"search.result.placeholder\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Add an element to the search result list\n *\n * @param el - Search result list element\n * @param child - Search result element\n */\nexport function addToSearchResultList(\n  el: HTMLElement, child: Element\n): void {\n  el.appendChild(child)\n}\n\n/**\n * Reset search result list\n *\n * @param el - Search result list element\n */\nexport function resetSearchResultList(\n  el: HTMLElement\n): void {\n  el.innerHTML = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport {\n  finalize,\n  map,\n  mapTo,\n  observeOn,\n  scan,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"browser\"\nimport { SearchResult } from \"integrations/search\"\nimport { renderSearchResult } from \"templates\"\n\nimport { SearchQuery } from \"../../query\"\nimport {\n  addToSearchResultList,\n  resetSearchResultList,\n  resetSearchResultMeta,\n  setSearchResultMeta\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n  query$: Observable<SearchQuery>     /* Search query observable */\n  ready$: Observable<boolean>         /* Search ready observable */\n  fetch$: Observable<boolean>         /* Result fetch observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply search results\n *\n * This function will perform a lazy rendering of the search results, depending\n * on the vertical offset of the search result container. When the scroll offset\n * reaches the bottom of the element, more results are fetched and rendered.\n *\n * @param el - Search result element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySearchResult(\n  el: HTMLElement, { query$, ready$, fetch$ }: ApplyOptions\n): MonoTypeOperatorFunction<SearchResult[]> {\n  const list = getElementOrThrow(\".md-search-result__list\", el)\n  const meta = getElementOrThrow(\".md-search-result__meta\", el)\n  return pipe(\n\n    /* Apply search result metadata */\n    withLatestFrom(query$, ready$),\n    map(([result, query]) => {\n      if (query.value) {\n        setSearchResultMeta(meta, result.length)\n      } else {\n        resetSearchResultMeta(meta)\n      }\n      return result\n    }),\n\n    /* Apply search result list */\n    switchMap(result => fetch$\n      .pipe(\n\n        /* Defer repaint to next animation frame */\n        observeOn(animationFrameScheduler),\n        scan(index => {\n          const container = el.parentElement!\n          while (index < result.length) {\n            addToSearchResultList(list, renderSearchResult(result[index++]))\n            if (container.scrollHeight - container.offsetHeight > 16)\n              break\n          }\n          return index\n        }, 0),\n\n        /* Re-map to search result */\n        mapTo(result),\n\n        /* Reset on complete or error */\n        finalize(() => {\n          resetSearchResultList(list)\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  filter,\n  map,\n  mapTo,\n  pluck,\n  startWith,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchElementOffset } from \"browser\"\nimport {\n  SearchMessage,\n  SearchResult,\n  isSearchReadyMessage,\n  isSearchResultMessage\n} from \"integrations\"\n\nimport { SearchQuery } from \"../../query\"\nimport { applySearchResult } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  query$: Observable<SearchQuery>      /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchResult(\n  { rx$ }: WorkerHandler<SearchMessage>, { query$ }: MountOptions\n): OperatorFunction<HTMLElement, SearchResult[]> {\n  return pipe(\n    switchMap(el => {\n      const container = el.parentElement!\n\n      /* Compute if search is ready */\n      const ready$ = rx$\n        .pipe(\n          filter(isSearchReadyMessage),\n          mapTo(true)\n        )\n\n      /* Compute whether there are more search results to fetch */\n      const fetch$ = watchElementOffset(container)\n        .pipe(\n          map(({ y }) => {\n            return y >= container.scrollHeight - container.offsetHeight - 16\n          }),\n          distinctUntilChanged(),\n          filter(identity)\n        )\n\n      /* Apply search results */\n      return rx$\n        .pipe(\n          filter(isSearchResultMessage),\n          pluck(\"data\"),\n          applySearchResult(el, { query$, ready$, fetch$ }),\n          startWith([])\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, Subject, pipe } from \"rxjs\"\nimport { distinctUntilKeyChanged, switchMap, tap } from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport { Header } from \"../../header\"\nimport {\n  applyHeaderShadow,\n  watchMain\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n  offset: number                       /* Main area top offset */\n  height: number                       /* Main area visible height */\n  active: boolean                      /* Scrolled past top offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount main area from source observable\n *\n * The header must be connected to the main area observable outside of the\n * operator function, as the header will persist in-between document switches\n * while the main area is replaced. However, the header observable must be\n * passed to this function, so we connect both via a long-living subject.\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountMain(\n  { header$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Main> {\n  const main$ = new Subject<Main>()\n\n  /* Connect to main area observable via long-living subject */\n  useComponent(\"header\")\n    .pipe(\n      switchMap(header => main$\n        .pipe(\n          distinctUntilKeyChanged(\"active\"),\n          applyHeaderShadow(header)\n        )\n      )\n    )\n      .subscribe()\n\n  /* Return operator */\n  return pipe(\n    switchMap(el => watchMain(el, { header$, viewport$ })),\n    tap(main => main$.next(main))\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  finalize,\n  map,\n  observeOn,\n  pluck,\n  shareReplay,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../_\"\nimport {\n  resetHeaderShadow,\n  setHeaderShadow\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @return Main area observable\n */\nexport function watchMain(\n  el: HTMLElement, { header$, viewport$ }: WatchOptions\n): Observable<Main> {\n\n  /* Compute necessary adjustment for header */\n  const adjust$ = header$\n    .pipe(\n      pluck(\"height\"),\n      distinctUntilChanged(),\n      shareReplay(1)\n    )\n\n  /* Compute the main area's top and bottom borders */\n  const border$ = adjust$\n    .pipe(\n      switchMap(() => watchElementSize(el)\n        .pipe(\n          map(({ height }) => ({\n            top:    el.offsetTop,\n            bottom: el.offsetTop + height\n          }))\n        )\n      ),\n      distinctUntilKeyChanged(\"bottom\"),\n      shareReplay(1)\n    )\n\n  /* Compute the main area's offset, visible height and if we scrolled past */\n  return combineLatest([adjust$, border$, viewport$])\n    .pipe(\n      map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n        height = Math.max(0, height\n          - Math.max(0, top    - y,  header)\n          - Math.max(0, height + y - bottom)\n        )\n        return {\n          offset: top - header,\n          height,\n          active: top - header <= y\n        }\n      }),\n      distinctUntilChanged<Main>((a, b) => {\n        return a.offset === b.offset\n            && a.height === b.height\n            && a.active === b.active\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header shadow\n *\n * @param el - Header element\n *\n * @return Operator function\n */\nexport function applyHeaderShadow(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Main> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ active }) => {\n      setHeaderShadow(el, active)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeaderShadow(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header shadow\n *\n * @param el - Header element\n * @param value - Whether the shadow is shown\n */\nexport function setHeaderShadow(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"shadow\" : \"\")\n}\n\n/**\n * Reset header shadow\n *\n * @param el - Header element\n */\nexport function resetHeaderShadow(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyHero } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Hero\n */\nexport interface Hero {\n  hidden: boolean                      /* Whether the hero is hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount hero from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHero(\n  { header$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Hero> {\n  return pipe(\n    switchMap(el => watchViewportAt(el, { header$, viewport$ })\n      .pipe(\n        map(({ offset: { y } }) => ({ hidden: y >= 20 })),\n        distinctUntilKeyChanged(\"hidden\"),\n        applyHero(el)\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Hero } from \"../_\"\nimport {\n  resetHeroHidden,\n  setHeroHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply hero\n *\n * @param el - Hero element\n *\n * @return Operator function\n */\nexport function applyHero(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Hero> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ hidden }) => {\n      setHeroHidden(el, hidden)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeroHidden(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set hero hidden\n *\n * @param el - Hero element\n * @param value - Whether the element is hidden\n */\nexport function setHeroHidden(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset hero hidden\n *\n * @param el - Hero element\n */\nexport function resetHeroHidden(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  filter,\n  map,\n  shareReplay,\n  startWith,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Viewport,\n  getElement,\n  watchViewportAt\n} from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport {\n  applyHeaderType,\n  watchHeader\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header type\n */\nexport type HeaderType =\n  | \"site\"                             /* Header shows site title */\n  | \"page\"                             /* Header shows page title */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n  type: HeaderType                     /* Header type */\n  sticky: boolean                      /* Header stickyness */\n  height: number                       /* Header visible height */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount header from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHeader(\n  { document$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Header> {\n  return pipe(\n    switchMap(el => {\n      const header$ = watchHeader(el, { document$ })\n\n      /* Compute whether the header should switch to page header */\n      const type$ = useComponent(\"main\")\n        .pipe(\n          map(main => getElement(\"h1, h2, h3, h4, h5, h6\", main)!),\n          filter(hx => typeof hx !== \"undefined\"),\n          withLatestFrom(useComponent(\"header-title\")),\n          switchMap(([hx, title]) => watchViewportAt(hx, { header$, viewport$ })\n            .pipe(\n              map(({ offset: { y } }) => {\n                return y >= hx.offsetHeight ? \"page\" : \"site\"\n              }),\n              distinctUntilChanged(),\n              applyHeaderType(title)\n            )\n          ),\n          startWith<HeaderType>(\"site\")\n        )\n\n      /* Combine into single observable */\n      return combineLatest([header$, type$])\n        .pipe(\n          map(([header, type]): Header => ({ type, ...header })),\n          shareReplay(1)\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  of,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  finalize,\n  map,\n  observeOn,\n  shareReplay,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { watchElementSize } from \"browser\"\n\nimport { Header, HeaderType } from \"../_\"\nimport {\n  resetHeaderTitleActive,\n  setHeaderTitleActive\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n *\n * @return Header observable\n */\nexport function watchHeader(\n  el: HTMLElement, { document$ }: WatchOptions\n): Observable<Omit<Header, \"type\">> {\n  return document$\n    .pipe(\n      map(() => {\n        const styles = getComputedStyle(el)\n        return [\n          \"sticky\",                    /* Modern browsers */\n          \"-webkit-sticky\"             /* Safari */\n        ].includes(styles.position)\n      }),\n      distinctUntilChanged(),\n      switchMap(sticky => {\n        if (sticky) {\n          return watchElementSize(el)\n            .pipe(\n              map(({ height }) => ({\n                sticky: true,\n                height\n              }))\n            )\n        } else {\n          return of({\n            sticky: false,\n            height: 0\n          })\n        }\n      }),\n      shareReplay(1)\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header title type\n *\n * @param el - Header title element\n *\n * @return Operator function\n */\nexport function applyHeaderType(\n  el: HTMLElement\n): MonoTypeOperatorFunction<HeaderType> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(type => {\n      setHeaderTitleActive(el, type === \"page\")\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeaderTitleActive(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header title active\n *\n * @param el - Header title element\n * @param value - Whether the title is shown\n */\nexport function setHeaderTitleActive(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"active\" : \"\")\n}\n\n/**\n * Reset header title active\n *\n * @param el - Header title element\n */\nexport function resetHeaderTitleActive(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyTabs } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Tabs\n */\nexport interface Tabs {\n  hidden: boolean                      /* Whether the tabs are hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  screen$: Observable<boolean>         /* Media screen observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount tabs from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTabs(\n  { header$, viewport$, screen$ }: MountOptions\n): OperatorFunction<HTMLElement, Tabs> {\n  return pipe(\n    switchMap(el => screen$\n      .pipe(\n        switchMap(screen => {\n\n          /* [screen +]: Mount tabs above screen breakpoint */\n          if (screen) {\n            return watchViewportAt(el, { header$, viewport$ })\n              .pipe(\n                map(({ offset: { y } }) => ({ hidden: y >= 10 })),\n                distinctUntilKeyChanged(\"hidden\"),\n                applyTabs(el)\n              )\n\n          /* [screen -]: Unmount tabs below screen breakpoint */\n          } else {\n            return of({ hidden: true })\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Tabs } from \"../_\"\nimport {\n  resetTabsHidden,\n  setTabsHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply tabs\n *\n * @param el - Tabs element\n *\n * @return Operator function\n */\nexport function applyTabs(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Tabs> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ hidden }) => {\n      setTabsHidden(el, hidden)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetTabsHidden(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set tabs hidden\n *\n * @param el - Tabs element\n * @param value - Whether the element is hidden\n */\nexport function setTabsHidden(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset tabs hidden\n *\n * @param el - Tabs element\n */\nexport function resetTabsHidden(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../../main\"\nimport {\n  Sidebar,\n  applySidebar,\n  watchSidebar\n} from \"../../shared\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation for [screen -]\n */\ninterface NavigationBelowScreen {} // tslint:disable-line\n\n/**\n * Navigation for [screen +]\n */\ninterface NavigationAboveScreen {\n  sidebar: Sidebar                     /* Sidebar */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Navigation\n */\nexport type Navigation =\n  | NavigationBelowScreen\n  | NavigationAboveScreen\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  screen$: Observable<boolean>         /* Screen media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount navigation from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountNavigation(\n  { header$, main$, viewport$, screen$ }: MountOptions\n): OperatorFunction<HTMLElement, Navigation> {\n  return pipe(\n    switchMap(el => screen$\n      .pipe(\n        switchMap(screen => {\n\n          /* [screen +]: Mount navigation in sidebar */\n          if (screen) {\n            return watchSidebar(el, { main$, viewport$ })\n              .pipe(\n                applySidebar(el, { header$ }),\n                map(sidebar => ({ sidebar }))\n              )\n\n          /* [screen -]: Mount navigation in drawer */\n          } else {\n            return of({})\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, fromEvent, iif, merge } from \"rxjs\"\nimport { map, mapTo, shareReplay, switchMap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @return Test result\n */\nfunction isAppleDevice(): boolean {\n  return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n  { document$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements(\"[data-md-scrollfix]\")),\n      shareReplay(1)\n    )\n\n  /* Remove marker attribute, so we'll only add the fix once */\n  els$.subscribe(els => {\n    for (const el of els)\n      el.removeAttribute(\"data-md-scrollfix\")\n  })\n\n  /* Patch overflow scrolling on touch start */\n  iif(isAppleDevice, els$, NEVER)\n    .pipe(\n      switchMap(els => merge(...els.map(el => (\n        fromEvent(el, \"touchstart\", { passive: true })\n          .pipe(\n            mapTo(el)\n          )\n      ))))\n    )\n      .subscribe(el => {\n        const top = el.scrollTop\n\n        /* We're at the top of the container */\n        if (top === 0) {\n          el.scrollTop = 1\n\n        /* We're at the bottom of the container */\n        } else if (top + el.offsetHeight === el.scrollHeight) {\n          el.scrollTop = top - 1\n        }\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable } from \"rxjs\"\nimport { catchError, map, switchMap } from \"rxjs/operators\"\n\nimport { getElementOrThrow, getElements } from \"browser\"\nimport { renderSource } from \"templates\"\nimport { cache, hash } from \"utilities\"\n\nimport { fetchSourceFactsFromGitHub } from \"./github\"\nimport { fetchSourceFactsFromGitLab } from \"./gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Source facts\n */\nexport type SourceFacts = string[]\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch source facts\n *\n * @param url - Source repository URL\n *\n * @return Source facts observable\n */\nfunction fetchSourceFacts(\n  url: string\n): Observable<SourceFacts> {\n  const [type] = url.match(/(git(?:hub|lab))/i) || []\n  switch (type.toLowerCase()) {\n\n    /* GitHub repository */\n    case \"github\":\n      const [, user, repo] = url.match(/^.+github\\.com\\/([^\\/]+)\\/?([^\\/]+)/i)\n      return fetchSourceFactsFromGitHub(user, repo)\n\n    /* GitLab repository */\n    case \"gitlab\":\n      const [, base, slug] = url.match(/^.+?([^\\/]*gitlab[^\\/]+)\\/(.+?)\\/?$/i)\n      return fetchSourceFactsFromGitLab(base, slug)\n\n    /* Everything else */\n    default:\n      return NEVER\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch elements containing repository information\n *\n * This function will retrieve the URL from the repository link and try to\n * query data from integrated source code platforms like GitHub or GitLab.\n *\n * @param options - Options\n */\nexport function patchSource(\n  { document$ }: PatchOptions\n): void {\n  document$\n    .pipe(\n      map(() => getElementOrThrow<HTMLAnchorElement>(\".md-source[href]\")),\n      switchMap(({ href }) => (\n        cache(`${hash(href)}`, () => fetchSourceFacts(href))\n      )),\n      catchError(() => NEVER)\n    )\n      .subscribe(facts => {\n        for (const el of getElements(\".md-source__repository\")) {\n          if (!el.hasAttribute(\"data-md-state\")) {\n            el.setAttribute(\"data-md-state\", \"done\")\n            el.appendChild(renderSource(facts))\n          }\n        }\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport { Observable, of } from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport { filter, pluck, switchMap } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub source facts\n *\n * @param user - GitHub user\n * @param repo - GitHub repository\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n  user: string, repo?: string\n): Observable<SourceFacts> {\n  return ajax({\n    url: typeof repo !== \"undefined\"\n      ? `https://api.github.com/repos/${user}/${repo}`\n      : `https://api.github.com/users/${user}`,\n    responseType: \"json\"\n  })\n    .pipe(\n      filter(({ status }) => status === 200),\n      pluck(\"response\"),\n      switchMap(data => {\n\n        /* GitHub repository */\n        if (typeof repo !== \"undefined\") {\n          const { stargazers_count, forks_count }: Repo = data\n          return of([\n            `${round(stargazers_count || 0)} Stars`,\n            `${round(forks_count || 0)} Forks`\n          ])\n\n        /* GitHub user/organization */\n        } else {\n          const { public_repos }: User = data\n          return of([\n            `${round(public_repos || 0)} Repositories`\n          ])\n        }\n      })\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport { Observable } from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport { filter, map, pluck } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab source facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n  base: string, project: string\n): Observable<SourceFacts> {\n  return ajax({\n    url: `https://${base}/api/v4/projects/${encodeURIComponent(project)}`,\n    responseType: \"json\"\n  })\n    .pipe(\n      filter(({ status }) => status === 200),\n      pluck(\"response\"),\n      map(({ star_count, forks_count }: ProjectSchema) => ([\n        `${round(star_count)} Stars`,\n        `${round(forks_count)} Forks`\n      ]))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// DISCLAIMER: this file is still WIP. There're some refactoring opportunities\n// which must be tackled after we gathered some feedback on v5.\n// tslint:disable\n\nimport { sortBy, prop, values } from \"ramda\"\nimport {\n  merge,\n  combineLatest,\n  animationFrameScheduler,\n  fromEvent,\n  from,\n  defer,\n  of,\n  NEVER\n} from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport {\n  delay,\n  switchMap,\n  tap,\n  filter,\n  withLatestFrom,\n  observeOn,\n  take,\n  shareReplay,\n  pluck,\n  catchError,\n  map\n} from \"rxjs/operators\"\n\nimport {\n  watchToggle,\n  setToggle,\n  getElements,\n  watchMedia,\n  watchDocument,\n  watchLocation,\n  watchLocationHash,\n  watchViewport,\n  isLocalLocation,\n  setLocationHash,\n  watchLocationBase\n} from \"browser\"\nimport {\n  mountHeader,\n  mountHero,\n  mountMain,\n  mountNavigation,\n  mountSearch,\n  mountTableOfContents,\n  mountTabs,\n  useComponent,\n  setupComponents,\n  mountSearchQuery,\n  mountSearchReset,\n  mountSearchResult\n} from \"components\"\nimport {\n  setupClipboard,\n  setupDialog,\n  setupKeyboard,\n  setupInstantLoading,\n  setupSearchWorker,\n  SearchIndex\n} from \"integrations\"\nimport {\n  patchCodeBlocks,\n  patchTables,\n  patchDetails,\n  patchScrollfix,\n  patchSource,\n  patchScripts\n} from \"patches\"\nimport { isConfig } from \"utilities\"\n\n/* ------------------------------------------------------------------------- */\n\n/* Denote that JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Test for iOS */\nif (navigator.userAgent.match(/(iPad|iPhone|iPod)/g))\n  document.documentElement.classList.add(\"ios\")\n\n/**\n * Set scroll lock\n *\n * @param el - Scrollable element\n * @param value - Vertical offset\n */\nexport function setScrollLock(\n  el: HTMLElement, value: number\n): void {\n  el.setAttribute(\"data-md-state\", \"lock\")\n  el.style.top = `-${value}px`\n}\n\n/**\n * Reset scroll lock\n *\n * @param el - Scrollable element\n */\nexport function resetScrollLock(\n  el: HTMLElement\n): void {\n  const value = -1 * parseInt(el.style.top, 10)\n  el.removeAttribute(\"data-md-state\")\n  el.style.top = \"\"\n  if (value)\n    window.scrollTo(0, value)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Initialize Material for MkDocs\n *\n * @param config - Configuration\n */\nexport function initialize(config: unknown) {\n  if (!isConfig(config))\n    throw new SyntaxError(`Invalid configuration: ${JSON.stringify(config)}`)\n\n  /* Set up subjects */\n  const document$ = watchDocument()\n  const location$ = watchLocation()\n\n  /* Set up user interface observables */\n  const base$     = watchLocationBase(config.base, { location$ })\n  const hash$     = watchLocationHash()\n  const viewport$ = watchViewport()\n  const tablet$   = watchMedia(\"(min-width: 960px)\")\n  const screen$   = watchMedia(\"(min-width: 1220px)\")\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Set up component bindings */\n  setupComponents([\n    \"announce\",                        /* Announcement bar */\n    \"container\",                       /* Container */\n    \"header\",                          /* Header */\n    \"header-title\",                    /* Header title */\n    \"hero\",                            /* Hero */\n    \"main\",                            /* Main area */\n    \"navigation\",                      /* Navigation */\n    \"search\",                          /* Search */\n    \"search-query\",                    /* Search input */\n    \"search-reset\",                    /* Search reset */\n    \"search-result\",                   /* Search results */\n    \"skip\",                            /* Skip link */\n    \"tabs\",                            /* Tabs */\n    \"toc\"                              /* Table of contents */\n  ], { document$ })\n\n  const keyboard$ = setupKeyboard()\n\n  patchCodeBlocks({ document$, viewport$ })\n  patchDetails({ document$, hash$ })\n  patchScripts({ document$ })\n  patchSource({ document$ })\n  patchTables({ document$ })\n\n  /* Force 1px scroll offset to trigger overflow scrolling */\n  patchScrollfix({ document$ })\n\n  /* Set up clipboard and dialog */\n  const dialog$ = setupDialog()\n  const clipboard$ = setupClipboard({ document$, dialog$ })\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Create header observable */\n  const header$ = useComponent(\"header\")\n    .pipe(\n      mountHeader({ document$, viewport$ }),\n      shareReplay(1)\n    )\n\n  const main$ = useComponent(\"main\")\n    .pipe(\n      mountMain({ header$, viewport$ }),\n      shareReplay(1)\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  const navigation$ = useComponent(\"navigation\")\n    .pipe(\n      mountNavigation({ header$, main$, viewport$, screen$ }),\n      shareReplay(1) // shareReplay because there might be late subscribers\n    )\n\n  const toc$ = useComponent(\"toc\")\n    .pipe(\n      mountTableOfContents({ header$, main$, viewport$, tablet$ }),\n      shareReplay(1)\n    )\n\n  const tabs$ = useComponent(\"tabs\")\n    .pipe(\n      mountTabs({ header$, viewport$, screen$ }),\n      shareReplay(1)\n    )\n\n  const hero$ = useComponent(\"hero\")\n    .pipe(\n      mountHero({ header$, viewport$ }),\n      shareReplay(1)\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Search worker */\n  const worker$ = defer(() => {\n    const index = config.search && config.search.index\n      ? config.search.index\n      : undefined\n\n    /* Fetch index if it wasn't passed explicitly */\n    const index$ = typeof index !== \"undefined\"\n      ? from(index)\n      : base$\n          .pipe(\n            switchMap(base => ajax({\n              url: `${base}/search/search_index.json`,\n              responseType: \"json\",\n              withCredentials: true\n            })\n              .pipe<SearchIndex>(\n                pluck(\"response\")\n              )\n            )\n          )\n\n    return of(setupSearchWorker(config.search.worker, {\n      base$, index$\n    }))\n  })\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Mount search query */\n  const search$ = worker$\n    .pipe(\n      switchMap(worker => {\n\n        const query$ = useComponent(\"search-query\")\n          .pipe(\n            mountSearchQuery(worker, { transform: config.search.transform }),\n            shareReplay(1)\n          )\n\n        /* Mount search reset */\n        const reset$ = useComponent(\"search-reset\")\n          .pipe(\n            mountSearchReset(),\n            shareReplay(1)\n          )\n\n        /* Mount search result */\n        const result$ = useComponent(\"search-result\")\n          .pipe(\n            mountSearchResult(worker, { query$ }),\n            shareReplay(1)\n          )\n\n        return useComponent(\"search\")\n          .pipe(\n            mountSearch(worker, { query$, reset$, result$ }),\n            shareReplay(1)\n          )\n      }),\n      catchError(() => {\n        useComponent(\"search\")\n          .subscribe(el => el.hidden = true) // TODO: Hack\n        return NEVER\n      })\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  // // put into search...\n  hash$\n    .pipe(\n      tap(() => setToggle(\"search\", false)),\n      delay(125), // ensure that it runs after the body scroll reset...\n    )\n      .subscribe(hash => setLocationHash(`#${hash}`))\n\n  // TODO: scroll restoration must be centralized\n  combineLatest([\n    watchToggle(\"search\"),\n    tablet$,\n  ])\n    .pipe(\n      withLatestFrom(viewport$),\n      switchMap(([[toggle, tablet], { offset: { y }}]) => {\n        const active = toggle && !tablet\n        return document$\n          .pipe(\n            delay(active ? 400 : 100),\n            observeOn(animationFrameScheduler),\n            tap(({ body }) => active\n              ? setScrollLock(body, y)\n              : resetScrollLock(body)\n            )\n          )\n      })\n    )\n      .subscribe()\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Always close drawer on click */\n  fromEvent<MouseEvent>(document.body, \"click\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      filter(ev => {\n        if (ev.target instanceof HTMLElement) {\n          const el = ev.target.closest(\"a\") // TODO: abstract as link click?\n          if (el && isLocalLocation(el)) {\n            return true\n          }\n        }\n        return false\n      })\n    )\n      .subscribe(() => {\n        setToggle(\"drawer\", false)\n      })\n\n  /* Enable instant loading, if not on file:// protocol */\n  if (config.features.includes(\"instant\") && location.protocol !== \"file:\") {\n\n    /* Fetch sitemap and extract URL whitelist */\n    base$\n      .pipe(\n        switchMap(base => ajax({\n          url: `${base}/sitemap.xml`,\n          responseType: \"document\",\n          withCredentials: true\n        })\n          .pipe<Document>(\n            pluck(\"response\")\n          )\n        ),\n        withLatestFrom(base$),\n        map(([document, base]) => {\n          const urls = getElements(\"loc\", document)\n            .map(node => node.textContent!)\n\n          // Hack: This is a temporary fix to normalize instant loading lookup\n          // on localhost and Netlify previews. If this approach proves to be\n          // suitable, we'll refactor URL whitelisting anyway. We take the two\n          // shortest URLs and determine the common prefix to isolate the\n          // domain. If there're no two domains, we just leave it as-is, as\n          // there isn't anything to be loaded anway.\n          if (urls.length > 1) {\n            const [a, b] = sortBy(prop(\"length\"), urls)\n\n            /* Determine common prefix */\n            let index = 0\n            if (a === b)\n              index = a.length\n            else\n              while (a.charAt(index) === b.charAt(index))\n                index++\n\n            /* Replace common prefix (i.e. base) with effective base */\n            for (let i = 0; i < urls.length; i++)\n              urls[i] = urls[i].replace(a.slice(0, index), `${base}/`)\n          }\n          return urls\n        })\n      )\n        .subscribe(urls => {\n          setupInstantLoading(urls, { document$, location$, viewport$ })\n        })\n  }\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Unhide permalinks on first tab */\n  keyboard$\n    .pipe(\n      filter(key => key.mode === \"global\" && key.type === \"Tab\"),\n      take(1)\n    )\n      .subscribe(() => {\n        for (const link of getElements(\".headerlink\"))\n          link.style.visibility = \"visible\"\n      })\n\n  /* ----------------------------------------------------------------------- */\n\n  const state = {\n\n    /* Browser observables */\n    document$,\n    location$,\n    viewport$,\n\n    /* Component observables */\n    header$,\n    hero$,\n    main$,\n    navigation$,\n    search$,\n    tabs$,\n    toc$,\n\n    /* Integration observables */\n    clipboard$,\n    keyboard$,\n    dialog$\n  }\n\n  /* Subscribe to all observables */\n  merge(...values(state))\n    .subscribe()\n  return state\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport { distinctUntilKeyChanged, map } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `code` elements\n *\n * This function will make overflowing code blocks focusable via keyboard, so\n * they can be scrolled without a mouse.\n *\n * @param options - Options\n */\nexport function patchCodeBlocks(\n  { document$, viewport$ }: MountOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements<HTMLTableElement>(\"pre > code\"))\n    )\n\n  /* Observe viewport size only */\n  const size$ = viewport$\n    .pipe(\n      distinctUntilKeyChanged(\"size\")\n    )\n\n  /* Make overflowing elements focusable */\n  combineLatest([els$, size$])\n    .subscribe(([els]) => {\n      for (const el of els) {\n        if (el.scrollWidth > el.clientWidth)\n          el.setAttribute(\"tabindex\", \"0\")\n        else\n          el.removeAttribute(\"tabindex\")\n      }\n    })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport {\n  filter,\n  map,\n  switchMapTo,\n  tap\n} from \"rxjs/operators\"\n\nimport {\n  getElement,\n  getElements,\n  watchMedia\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n  hash$: Observable<string>            /* Location hash observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `details` elements\n *\n * This function will ensure that all `details` tags are opened prior to\n * printing, so the whole content of the page is included, and on anchor jumps.\n *\n * @param options - Options\n */\nexport function patchDetails(\n  { document$, hash$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements<HTMLDetailsElement>(\"details\"))\n    )\n\n  /* Open all details before printing */\n  merge(\n    watchMedia(\"print\").pipe(filter(identity)), /* Webkit */\n    fromEvent(window, \"beforeprint\")            /* IE, FF */\n  )\n    .pipe(\n      switchMapTo(els$)\n    )\n      .subscribe(els => {\n        for (const el of els)\n          el.setAttribute(\"open\", \"\")\n      })\n\n  /* Open parent details and fix anchor jump */\n  hash$\n    .pipe(\n      map(id => getElement(`[id=\"${id}\"]`)!),\n      filter(el => typeof el !== \"undefined\"),\n      tap(el => {\n        const details = el.closest(\"details\")\n        if (details && !details.open)\n          details.setAttribute(\"open\", \"\")\n      })\n    )\n      .subscribe(el => el.scrollIntoView())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map, skip, withLatestFrom } from \"rxjs/operators\"\n\nimport {\n  createElement,\n  getElements,\n  replaceElement\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `script` elements\n *\n * This function must be run after a document switch, which means the first\n * emission must be ignored.\n *\n * @param options - Options\n */\nexport function patchScripts(\n  { document$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      skip(1),\n      withLatestFrom(useComponent(\"container\")),\n      map(([, el]) => getElements<HTMLScriptElement>(\"script\", el))\n    )\n\n  /* Evaluate all scripts via replacement */\n  els$.subscribe(els => {\n    for (const el of els) {\n      if (el.src || /(^|\\/javascript)$/i.test(el.type)) {\n        const script = createElement(\"script\")\n        const key = el.src ? \"src\" : \"textContent\"\n        script[key] = el[key]!\n        replaceElement(el, script)\n      }\n    }\n  })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport {\n  createElement,\n  getElements,\n  replaceElement\n} from \"browser\"\nimport { renderTable } from \"templates\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `table` elements\n *\n * This function will re-render all tables by wrapping them to improve overflow\n * scrolling on smaller screen sizes.\n *\n * @param options - Options\n */\nexport function patchTables(\n  { document$ }: MountOptions\n): void {\n  const sentinel = createElement(\"table\")\n  document$\n    .pipe(\n      map(() => getElements<HTMLTableElement>(\"table:not([class])\"))\n    )\n      .subscribe(els => {\n        for (const el of els) {\n          replaceElement(el, sentinel)\n          replaceElement(sentinel, renderTable(el))\n        }\n      })\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/javascripts/bundle.e9fe3281.min.js b/assets/javascripts/bundle.e9fe3281.min.js
new file mode 100644
index 000000000..c867ab79d
--- /dev/null
+++ b/assets/javascripts/bundle.e9fe3281.min.js
@@ -0,0 +1,2 @@
+!function(t,e){for(var n in e)t[n]=e[n]}(window,function(t){function e(e){for(var r,i,o=e[0],u=e[1],b=e[2],s=0,O=[];s<o.length;s++)i=o[s],Object.prototype.hasOwnProperty.call(c,i)&&c[i]&&O.push(c[i][0]),c[i]=0;for(r in u)Object.prototype.hasOwnProperty.call(u,r)&&(t[r]=u[r]);for(f&&f(e);O.length;)O.shift()();return a.push.apply(a,b||[]),n()}function n(){for(var t,e=0;e<a.length;e++){for(var n=a[e],r=!0,o=1;o<n.length;o++){var u=n[o];0!==c[u]&&(r=!1)}r&&(a.splice(e--,1),t=i(i.s=n[0]))}return t}var r={},c={0:0},a=[];function i(e){if(r[e])return r[e].exports;var n=r[e]={i:e,l:!1,exports:{}};return t[e].call(n.exports,n,n.exports,i),n.l=!0,n.exports}i.m=t,i.c=r,i.d=function(t,e,n){i.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:n})},i.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},i.t=function(t,e){if(1&e&&(t=i(t)),8&e)return t;if(4&e&&"object"==typeof 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w=n(0),x=n(95),$=n(97),S=n(117),C=n(99),k=n(45),T=n(102),A=n(90),E=n(106),_=n(107),L=n(105),M=n(91),z=n(108),R=n(92);function H(t,e){var n=e.document$,r=e.viewport$,a=e.location$;"scrollRestoration"in history&&(history.scrollRestoration="manual"),Object(x.a)(window,"beforeunload").subscribe((function(){history.scrollRestoration="auto"}));var o=Object(b.c)('link[rel="shortcut icon"]');void 0!==o&&(o.href=o.href);var u=Object(x.a)(document.body,"click").pipe(Object(C.a)((function(t){return!(t.metaKey||t.ctrlKey)})),Object(h.a)((function(e){if(e.target instanceof HTMLElement){var n=e.target.closest("a");if(n&&!n.target&&Object(b.h)(n)&&t.includes(n.href))return Object(b.g)(n)||e.preventDefault(),Object(j.a)(n)}return c.a})),Object(v.a)((function(t){return{url:new URL(t.href)}})),Object(i.a)());u.subscribe((function(){Object(b.o)("search",!1)}));var f=u.pipe(Object(C.a)((function(t){var 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\t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n \t\t}\n \t};\n\n \t// define __esModule on exports\n \t__webpack_require__.r = function(exports) {\n \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n \t\t}\n \t\tObject.defineProperty(exports, '__esModule', { value: true });\n \t};\n\n \t// create a fake namespace object\n \t// mode & 1: value is a module id, require it\n \t// mode & 2: merge all properties of value into the ns\n \t// mode & 4: return value when already ns object\n \t// mode & 8|1: behave like require\n \t__webpack_require__.t = function(value, mode) {\n \t\tif(mode & 1) value = __webpack_require__(value);\n \t\tif(mode & 8) return value;\n \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n \t\tvar ns = Object.create(null);\n \t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \tvar jsonpArray = window[\"webpackJsonp\"] = window[\"webpackJsonp\"] || [];\n \tvar oldJsonpFunction = jsonpArray.push.bind(jsonpArray);\n \tjsonpArray.push = webpackJsonpCallback;\n \tjsonpArray = jsonpArray.slice();\n \tfor(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);\n \tvar parentJsonpFunction = oldJsonpFunction;\n\n\n \t// add entry module to deferred list\n \tdeferredModules.push([88,1]);\n \t// run deferred modules when ready\n \treturn checkDeferredModules();\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ReplaySubject, Subject, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents must be implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted. This enabled features\n * like instant loading.\n *\n * @return Document subject\n */\nexport function watchDocument(): Subject<Document> {\n  const document$ = new ReplaySubject<Document>()\n  fromEvent(document, \"DOMContentLoaded\")\n    .pipe(\n      mapTo(document)\n    )\n      .subscribe(document$)\n\n  /* Return document */\n  return document$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element or nothing\n */\nexport function getElement<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T | undefined {\n  return node.querySelector<T>(selector) || undefined\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element\n */\nexport function getElementOrThrow<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T {\n  const el = getElement<T>(selector, node)\n  if (typeof el === \"undefined\")\n    throw new ReferenceError(\n      `Missing element: expected \"${selector}\" to be present`\n    )\n  return el\n}\n\n/**\n * Retrieve the currently active element\n *\n * @return Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n  return document.activeElement instanceof HTMLElement\n    ? document.activeElement\n    : undefined\n}\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Elements\n */\nexport function getElements<T extends HTMLElement>(\n  selector: string, node: ParentNode = document\n): T[] {\n  return Array.from(node.querySelectorAll<T>(selector))\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @template T - Tag name type\n *\n * @param tagName - Tag name\n *\n * @return Element\n */\nexport function createElement<\n  T extends keyof HTMLElementTagNameMap\n>(tagName: T): HTMLElementTagNameMap[T] {\n  return document.createElement(tagName)\n}\n\n/**\n * Replace an element with another element\n *\n * @param source - Source element\n * @param target - Target element\n */\nexport function replaceElement(\n  source: HTMLElement, target: Node\n): void {\n  source.replaceWith(target)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element focus\n *\n * @param el - Element\n * @param value - Whether the element should be focused\n */\nexport function setElementFocus(\nel: HTMLElement, value: boolean = true\n): void {\n  if (value)\n    el.focus()\n  else\n    el.blur()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * @param el - Element\n *\n * @return Element focus observable\n */\nexport function watchElementFocus(\n  el: HTMLElement\n): Observable<boolean> {\n  return merge(\n    fromEvent<FocusEvent>(el, \"focus\"),\n    fromEvent<FocusEvent>(el, \"blur\")\n  )\n    .pipe(\n      map(({ type }) => type === \"focus\"),\n      startWith(el === getActiveElement())\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n  x: number                            /* Horizontal offset */\n  y: number                            /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @return Element offset\n */\nexport function getElementOffset(el: HTMLElement): ElementOffset {\n  return {\n    x: el.scrollLeft,\n    y: el.scrollTop\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @return Element offset observable\n */\nexport function watchElementOffset(\n  el: HTMLElement\n): Observable<ElementOffset> {\n  return merge(\n    fromEvent(el, \"scroll\"),\n    fromEvent(window, \"resize\")\n  )\n    .pipe(\n      map(() => getElementOffset(el)),\n      startWith(getElementOffset(el))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element text selection\n *\n * @param el - Element\n */\nexport function setElementSelection(\n  el: HTMLElement\n): void {\n  if (el instanceof HTMLInputElement)\n    el.select()\n  else\n    throw new Error(\"Not implemented\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ResizeObserver from \"resize-observer-polyfill\"\nimport {\n  NEVER,\n  Observable,\n  Subject,\n  defer,\n  merge,\n  of\n} from \"rxjs\"\nimport {\n  filter,\n  finalize,\n  map,\n  shareReplay,\n  startWith,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n  width: number                        /* Element width */\n  height: number                       /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Resize observer entry subject\n */\nconst entry$ = new Subject<ResizeObserverEntry>()\n\n/**\n * Resize observer observable\n *\n * This observable will create a `ResizeObserver` on the first subscription\n * and will automatically terminate it when there are no more subscribers.\n * It's quite important to centralize observation in a single `ResizeObserver`,\n * as the performance difference can be quite dramatic, as the link shows.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n  new ResizeObserver(entries => {\n    for (const entry of entries)\n      entry$.next(entry)\n  })\n))\n  .pipe(\n    switchMap(resize => merge(of(resize), NEVER)\n      .pipe(\n        finalize(() => resize.disconnect())\n      )\n    ),\n    shareReplay({ bufferSize: 1, refCount: true })\n  )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @return Element size\n */\nexport function getElementSize(el: HTMLElement): ElementSize {\n  return {\n    width:  el.offsetWidth,\n    height: el.offsetHeight\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * This function returns an observable that will subscribe to a single internal\n * instance of `ResizeObserver` upon subscription, and emit resize events until\n * termination. Note that this function should not be called with the same\n * element twice, as the first unsubscription will terminate observation.\n *\n * @param el - Element\n *\n * @return Element size observable\n */\nexport function watchElementSize(\n  el: HTMLElement\n): Observable<ElementSize> {\n  return observer$\n    .pipe(\n      tap(observer => observer.observe(el)),\n      switchMap(observer => entry$\n        .pipe(\n          filter(({ target }) => target === el),\n          finalize(() => observer.unobserve(el)),\n          map(({ contentRect }) => ({\n            width:  contentRect.width,\n            height: contentRect.height\n          }))\n        )\n      ),\n      startWith(getElementSize(el))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Key\n */\nexport interface Key {\n  type: string                         /* Key type */\n  claim(): void                        /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n *\n * @return Test result\n */\nexport function isSusceptibleToKeyboard(el: HTMLElement): boolean {\n  switch (el.tagName) {\n\n    /* Form elements */\n    case \"INPUT\":\n    case \"SELECT\":\n    case \"TEXTAREA\":\n      return true\n\n    /* Everything else */\n    default:\n      return el.isContentEditable\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @return Keyboard observable\n */\nexport function watchKeyboard(): Observable<Key> {\n  return fromEvent<KeyboardEvent>(window, \"keydown\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      map(ev => ({\n        type: ev.key,\n        claim() {\n          ev.preventDefault()\n          ev.stopPropagation()\n        }\n      })),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { BehaviorSubject, Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function will return a `URL` object (and not `Location`) in order to\n * normalize typings across the application. Furthermore, locations need to be\n * tracked without setting them and `Location` is a singleton which represents\n * the current location.\n *\n * @return URL\n */\nexport function getLocation(): URL {\n  return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n  location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Check whether a URL is a local link or a file (except `.html`)\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isLocalLocation(\n  url: URL | HTMLAnchorElement,\n  ref: URL | Location = location\n): boolean {\n  return url.host === ref.host\n      && /^(?:\\/[\\w-]+)*(?:\\/?|\\.html)$/i.test(url.pathname)\n}\n\n/**\n * Check whether a URL is an anchor link on the current page\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isAnchorLocation(\n  url: URL | HTMLAnchorElement,\n  ref: URL | Location = location\n): boolean {\n  return url.pathname === ref.pathname\n      && url.hash.length > 0\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @return Location subject\n */\nexport function watchLocation(): Subject<URL> {\n  return new BehaviorSubject<URL>(getLocation())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map, shareReplay, take } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  location$: Observable<URL>           /* Location observable */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location base\n *\n * @return Location base observable\n */\nexport function watchLocationBase(\n  base: string, { location$ }: WatchOptions\n): Observable<string> {\n  return location$\n    .pipe(\n      take(1),\n      map(({ href }) => new URL(base, href)\n        .toString()\n        .replace(/\\/$/, \"\")\n      ),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share, startWith } from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @return Location hash\n */\nexport function getLocationHash(): string {\n  return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n  const el = createElement(\"a\")\n  el.href = hash\n  el.addEventListener(\"click\", ev => ev.stopPropagation())\n  el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @return Location hash observable\n */\nexport function watchLocationHash(): Observable<string> {\n  return fromEvent<HashChangeEvent>(window, \"hashchange\")\n    .pipe(\n      map(getLocationHash),\n      startWith(getLocationHash()),\n      filter(hash => hash.length > 0),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEventPattern } from \"rxjs\"\nimport { shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * @param query - Media query\n *\n * @return Media observable\n */\nexport function watchMedia(query: string): Observable<boolean> {\n  const media = matchMedia(query)\n  return fromEventPattern<boolean>(next =>\n    media.addListener(() => next(media.matches))\n  )\n    .pipe(\n      startWith(media.matches),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n  | \"drawer\"                           /* Toggle for drawer */\n  | \"search\"                           /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record<Toggle, HTMLInputElement> = {\n  drawer: getElementOrThrow(`[data-md-toggle=drawer]`),\n  search: getElementOrThrow(`[data-md-toggle=search]`)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n  return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n  if (toggles[name].checked !== value)\n    toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable<boolean> {\n  const el = toggles[name]\n  return fromEvent(el, \"change\")\n    .pipe(\n      map(() => el.checked),\n      startWith(el.checked)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n  x: number                            /* Horizontal offset */\n  y: number                            /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @return Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n  return {\n    x: Math.max(0, pageXOffset),\n    y: Math.max(0, pageYOffset)\n  }\n}\n\n/**\n * Set viewport offset\n *\n * @param offset - Viewport offset\n */\nexport function setViewportOffset(\n  { x, y }: Partial<ViewportOffset>\n): void {\n  window.scrollTo(x || 0, y || 0)\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @return Viewport offset observable\n */\nexport function watchViewportOffset(): Observable<ViewportOffset> {\n  return merge(\n    fromEvent(window, \"scroll\", { passive: true }),\n    fromEvent(window, \"resize\", { passive: true })\n  )\n    .pipe(\n      map(getViewportOffset),\n      startWith(getViewportOffset())\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n  width: number                        /* Viewport width */\n  height: number                       /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @return Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n  return {\n    width:  innerWidth,\n    height: innerHeight\n  }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @return Viewport size observable\n */\nexport function watchViewportSize(): Observable<ViewportSize> {\n  return fromEvent(window, \"resize\", { passive: true })\n    .pipe(\n      map(getViewportSize),\n      startWith(getViewportSize())\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  shareReplay\n} from \"rxjs/operators\"\n\nimport { Header } from \"components\"\n\nimport {\n  ViewportOffset,\n  watchViewportOffset\n} from \"../offset\"\nimport {\n  ViewportSize,\n  watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n  offset: ViewportOffset               /* Viewport offset */\n  size: ViewportSize                   /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch at options\n */\ninterface WatchAtOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @return Viewport observable\n */\nexport function watchViewport(): Observable<Viewport> {\n  return combineLatest([\n    watchViewportOffset(),\n    watchViewportSize()\n  ])\n    .pipe(\n      map(([offset, size]) => ({ offset, size })),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n}\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @return Viewport observable\n */\nexport function watchViewportAt(\n  el: HTMLElement, { header$, viewport$ }: WatchAtOptions\n): Observable<Viewport> {\n  const size$ = viewport$\n    .pipe(\n      distinctUntilKeyChanged(\"size\")\n    )\n\n  /* Compute element offset */\n  const offset$ = combineLatest([size$, header$])\n    .pipe(\n      map((): ViewportOffset => ({\n        x: el.offsetLeft,\n        y: el.offsetTop\n      }))\n    )\n\n  /* Compute relative viewport, return hot observable */\n  return combineLatest([header$, viewport$, offset$])\n    .pipe(\n      map(([{ height }, { offset, size }, { x, y }]) => ({\n        offset: {\n          x: offset.x - x,\n          y: offset.y - y + height\n        },\n        size\n      }))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, fromEventPattern } from \"rxjs\"\nimport {\n  pluck,\n  share,\n  switchMapTo,\n  tap,\n  throttle\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n  type: unknown                        /* Message type */\n  data?: unknown                       /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n  T extends WorkerMessage\n> {\n  tx$: Subject<T>                      /* Message transmission subject */\n  rx$: Observable<T>                   /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions<T extends WorkerMessage> {\n  tx$: Observable<T>                   /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that will send all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @return Worker message observable\n */\nexport function watchWorker<T extends WorkerMessage>(\n  worker: Worker, { tx$ }: WatchOptions<T>\n): Observable<T> {\n\n  /* Intercept messages from worker-like objects */\n  const rx$ = fromEventPattern<MessageEvent>(next =>\n    worker.addEventListener(\"message\", next)\n  )\n    .pipe<T>(\n      pluck(\"data\")\n    )\n\n  /* Send and receive messages, return hot observable */\n  return tx$\n    .pipe(\n      throttle(() => rx$, { leading: true, trailing: true }),\n      tap(message => worker.postMessage(message)),\n      switchMapTo(rx$),\n      share()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchTransformFn } from \"integrations\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flags\n */\nexport type Feature =\n  | \"tabs\"                             /* Tabs navigation */\n  | \"instant\"                          /* Instant loading\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Configuration\n */\nexport interface Config {\n  base: string                         /* Base URL */\n  features: Feature[]                  /* Feature flags */\n  search: {\n    worker: string                     /* Worker URL */\n    index?: Promise<SearchIndex>       /* Promise resolving with index */\n    transform?: SearchTransformFn      /* Transformation function */\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Ensure that the given value is a valid configuration\n *\n * We could use `jsonschema` or any other schema validation framework, but that\n * would just add more bloat to the bundle, so we'll keep it plain and simple.\n *\n * @param config - Configuration\n *\n * @return Test result\n */\nexport function isConfig(config: any): config is Config {\n  return typeof config === \"object\"\n      && typeof config.base === \"string\"\n      && typeof config.features === \"object\"\n      && typeof config.search === \"object\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// tslint:disable no-null-keyword\n\nimport { JSX as JSXInternal } from \"preact\"\nimport { keys } from \"ramda\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML and SVG attributes\n */\ntype Attributes =\n  & JSXInternal.HTMLAttributes\n  & JSXInternal.SVGAttributes\n  & Record<string, any>\n\n/**\n * Child element\n */\ntype Child =\n  | HTMLElement\n  | SVGElement\n  | Text\n  | string\n  | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @param tagName - HTML or SVG tag\n *\n * @return Element\n */\nfunction createElement(tagName: string): HTMLElement | SVGElement {\n  switch (tagName) {\n\n    /* SVG elements */\n    case \"svg\":\n    case \"path\":\n      return document.createElementNS(\"http://www.w3.org/2000/svg\", tagName)\n\n    /* HTML elements */\n    default:\n      return document.createElement(tagName)\n  }\n}\n\n/**\n * Set an attribute\n *\n * @param el - Element\n * @param name - Attribute name\n * @param value - Attribute value\n */\nfunction setAttribute(\n  el: HTMLElement | SVGElement, name: string, value: string) {\n  switch (name) {\n\n    /* Attributes to be ignored */\n    case \"xmlns\":\n      break\n\n    /* Attributes of SVG elements */\n    case \"viewBox\":\n    case \"d\":\n      if (typeof value !== \"boolean\")\n        el.setAttributeNS(null, name, value)\n      else if (value)\n        el.setAttributeNS(null, name, \"\")\n      break\n\n    /* Attributes of HTML elements */\n    default:\n      if (typeof value !== \"boolean\")\n        el.setAttribute(name, value)\n      else if (value)\n        el.setAttribute(name, \"\")\n  }\n}\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(\n  el: HTMLElement | SVGElement, child: Child | Child[]\n): void {\n\n  /* Handle primitive types (including raw HTML) */\n  if (typeof child === \"string\" || typeof child === \"number\") {\n    el.innerHTML += child.toString()\n\n  /* Handle nodes */\n  } else if (child instanceof Node) {\n    el.appendChild(child)\n\n  /* Handle nested children */\n  } else if (Array.isArray(child)) {\n    for (const node of child)\n      appendChild(el, node)\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @param tagName - HTML or SVG tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @return Element\n */\nexport function h(\n  tagName: string, attributes: Attributes | null, ...children: Child[]\n): HTMLElement | SVGElement {\n  const el = createElement(tagName)\n\n  /* Set attributes, if any */\n  if (attributes)\n    for (const attr of keys(attributes))\n      setAttribute(el, attr, attributes[attr])\n\n  /* Append child nodes */\n  for (const child of children)\n    appendChild(el, child)\n\n  /* Return element */\n  return el\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n  namespace JSX {\n    type Element = HTMLElement | SVGElement\n    type IntrinsicElements = JSXInternal.IntrinsicElements\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, defer, of } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Cache the last value emitted by an observable in session storage\n *\n * If the key is not found in session storage, the factory is executed and the\n * latest value emitted will automatically be persisted to sessions storage.\n * Note that the values emitted by the returned observable must be serializable\n * as `JSON`, or data will be lost.\n *\n * @template T - Value type\n *\n * @param key - Cache key\n * @param factory - Observable factory\n *\n * @return Value observable\n */\nexport function cache<T>(\n  key: string, factory: () => Observable<T>\n): Observable<T> {\n  return defer(() => {\n    const data = sessionStorage.getItem(key)\n    if (data) {\n      return of(JSON.parse(data) as T)\n\n    /* Retrieve value from observable factory and write to storage */\n    } else {\n      const value$ = factory()\n      value$.subscribe(value => {\n        try {\n          sessionStorage.setItem(key, JSON.stringify(value))\n        } catch (err) {\n          /* Uncritical, just swallow */\n        }\n      })\n\n      /* Return value */\n      return value$\n    }\n  })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Translation keys\n */\ntype TranslateKey =\n  | \"clipboard.copy\"                   /* Copy to clipboard */\n  | \"clipboard.copied\"                 /* Copied to clipboard */\n  | \"search.config.lang\"               /* Search language */\n  | \"search.config.pipeline\"           /* Search pipeline */\n  | \"search.config.separator\"          /* Search separator */\n  | \"search.result.placeholder\"        /* Type to start searching */\n  | \"search.result.none\"               /* No matching documents */\n  | \"search.result.one\"                /* 1 matching document */\n  | \"search.result.other\"              /* # matching documents */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Translations\n */\nlet lang: Record<string, string>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Translate the given key\n *\n * @param key - Key to be translated\n * @param value - Value to be replaced\n *\n * @return Translation\n */\nexport function translate(key: TranslateKey, value?: string): string {\n  if (typeof lang === \"undefined\") {\n    const el = getElementOrThrow(\"#__lang\")\n    lang = JSON.parse(el.textContent!)\n  }\n  if (typeof lang[key] === \"undefined\") {\n    throw new ReferenceError(`Invalid translation: ${key}`)\n  }\n  return typeof value !== \"undefined\"\n    ? lang[key].replace(\"#\", value)\n    : lang[key]\n}\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @return Truncated value\n */\nexport function truncate(value: string, n: number): string {\n  let i = n\n  if (value.length > i) {\n    while (value[i] !== \" \" && --i > 0); // tslint:disable-line\n    return `${value.substring(0, i)}...`\n  }\n  return value\n}\n\n/**\n * Round a number for display with source facts\n *\n * This is a reverse engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @return Rounded value\n */\nexport function round(value: number): string {\n  if (value > 999) {\n    const digits = +((value - 950) % 1000 > 99)\n    return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n  } else {\n    return value.toString()\n  }\n}\n\n/**\n * Simple hash function\n *\n * @see https://bit.ly/2wsVjJ4 - Original source\n *\n * @param value - Value to be hashed\n *\n * @return Hash as 32bit integer\n */\nexport function hash(value: string): number {\n    let h = 0\n    for (let i = 0, len = value.length; i < len; i++) {\n      h  = ((h << 5) - h) + value.charCodeAt(i)\n      h |= 0 // Convert to 32bit integer\n    }\n    return h\n  }\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./header\"\nexport * from \"./hero\"\nexport * from \"./main\"\nexport * from \"./navigation\"\nexport * from \"./search\"\nexport * from \"./shared\"\nexport * from \"./tabs\"\nexport * from \"./toc\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as ClipboardJS from \"clipboard\"\nimport { NEVER, Observable, Subject, fromEventPattern } from \"rxjs\"\nimport { mapTo, share, tap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\nimport { renderClipboardButton } from \"templates\"\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  document$: Observable<Document>      /* Document observable */\n  dialog$: Subject<string>             /* Dialog subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up clipboard\n *\n * This function implements the Clipboard.js integration and injects a button\n * into all code blocks when the document changes.\n *\n * @param options - Options\n *\n * @return Clipboard observable\n */\nexport function setupClipboard(\n  { document$, dialog$ }: SetupOptions\n): Observable<ClipboardJS.Event> {\n  if (!ClipboardJS.isSupported())\n    return NEVER\n\n  /* Inject 'copy-to-clipboard' buttons */\n  document$.subscribe(() => {\n    const blocks = getElements(\"pre > code\")\n    blocks.forEach((block, index) => {\n      const parent = block.parentElement!\n      parent.id = `__code_${index}`\n      parent.insertBefore(renderClipboardButton(parent.id), block)\n    })\n  })\n\n  /* Initialize clipboard */\n  const clipboard$ = fromEventPattern<ClipboardJS.Event>(next => {\n    new ClipboardJS(\".md-clipboard\").on(\"success\", next)\n  })\n    .pipe(\n      share()\n    )\n\n  /* Display notification for clipboard event */\n  clipboard$\n    .pipe(\n      tap(ev => ev.clearSelection()),\n      mapTo(translate(\"clipboard.copied\"))\n    )\n      .subscribe(dialog$)\n\n  /* Return clipboard */\n  return clipboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject, animationFrameScheduler, noop, of } from \"rxjs\"\nimport {\n  delay,\n  map,\n  observeOn,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  duration?: number                    /* Display duration (default: 2s) */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up dialog\n *\n * @param options - Options\n *\n * @return Dialog observable\n */\nexport function setupDialog(\n  { duration }: SetupOptions = {}\n): Subject<string> {\n  const dialog$ = new Subject<string>()\n\n  /* Create dialog */\n  const dialog = createElement(\"div\")                                           // TODO: improve scoping\n  dialog.classList.add(\"md-dialog\", \"md-typeset\")\n\n  /* Display dialog */\n  dialog$\n    .pipe(\n      switchMap(text => of(document.body) // useComponent(\"container\")\n        .pipe(\n          map(container => container.appendChild(dialog)),\n          observeOn(animationFrameScheduler),\n          delay(1), // Strangley it doesnt work when we push things to the new animation frame...\n          tap(el => {\n            el.innerHTML = text\n            el.setAttribute(\"data-md-state\", \"open\")\n          }),\n          delay(duration || 2000),\n          tap(el => el.removeAttribute(\"data-md-state\")),\n          delay(400),\n          tap(el => {\n            el.innerHTML = \"\"\n            el.remove()\n          })\n        )\n      )\n    )\n      .subscribe(noop)\n\n  /* Return dialog */\n  return dialog$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, Subject, fromEvent, merge, of } from \"rxjs\"\nimport { ajax } from \"rxjs//ajax\"\nimport {\n  bufferCount,\n  catchError,\n  debounceTime,\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  filter,\n  map,\n  pluck,\n  sample,\n  share,\n  skip,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Viewport,\n  ViewportOffset,\n  getElement,\n  isAnchorLocation,\n  isLocalLocation,\n  replaceElement,\n  setLocation,\n  setLocationHash,\n  setToggle,\n  setViewportOffset\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\ninterface State {\n  url: URL                             /* State URL */\n  offset?: ViewportOffset              /* State viewport offset */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  document$: Subject<Document>         /* Document subject */\n  location$: Subject<URL>              /* Location subject */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n  urls: string[], { document$, viewport$, location$ }: SetupOptions\n): void {\n\n  /* Disable automatic scroll restoration */\n  if (\"scrollRestoration\" in history)\n    history.scrollRestoration = \"manual\"\n\n  /* Hack: ensure that reloads restore viewport offset */\n  fromEvent(window, \"beforeunload\")\n    .subscribe(() => {\n      history.scrollRestoration = \"auto\"\n    })\n\n  /* Hack: ensure absolute favicon link to omit 404s on document switch */\n  const favicon = getElement<HTMLLinkElement>(`link[rel=\"shortcut icon\"]`)\n  if (typeof favicon !== \"undefined\")\n    favicon.href = favicon.href // tslint:disable-line no-self-assignment\n\n  /* Intercept link clicks and convert to state change */\n  const state$ = fromEvent<MouseEvent>(document.body, \"click\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      switchMap(ev => {\n        if (ev.target instanceof HTMLElement) {\n          const el = ev.target.closest(\"a\")\n          if (\n            el && !el.target &&\n            isLocalLocation(el) &&\n            urls.includes(el.href)\n          ) {\n            if (!isAnchorLocation(el))\n              ev.preventDefault()\n            return of(el)\n          }\n        }\n        return NEVER\n      }),\n      map(el => ({ url: new URL(el.href) })),\n      share<State>()\n    )\n\n  /* Always close search on link click */\n  state$.subscribe(() => {\n    setToggle(\"search\", false)\n  })\n\n  /* Filter state changes to dispatch */\n  const push$ = state$\n    .pipe(\n      filter(({ url }) => !isAnchorLocation(url)),\n      share()\n    )\n\n  /* Intercept popstate events (history back and forward) */\n  const pop$ = fromEvent<PopStateEvent>(window, \"popstate\")\n    .pipe(\n      filter(ev => ev.state !== null),\n      map(ev => ({\n        url: new URL(location.href),\n        offset: ev.state\n      })),\n      share<State>()\n    )\n\n  /* Emit location change */\n  merge(push$, pop$)\n    .pipe(\n      distinctUntilChanged((prev, next) => prev.url.href === next.url.href),\n      pluck(\"url\")\n    )\n      .subscribe(location$)\n\n  /* Fetch document on location change */\n  const ajax$ = location$\n    .pipe(\n      distinctUntilKeyChanged(\"pathname\"),\n      skip(1),\n      switchMap(url => ajax({\n        url: url.href,\n        responseType: \"text\",\n        withCredentials: true\n      })\n        .pipe(\n          catchError(() => {\n            setLocation(url)\n            return NEVER\n          })\n        )\n      ),\n      share()\n    )\n\n  /* Set new location as soon as the document was fetched */\n  push$\n    .pipe(\n      sample(ajax$)\n    )\n      .subscribe(({ url }) => {\n        history.pushState({}, \"\", url.toString())\n      })\n\n  /* Parse and emit document */\n  const dom = new DOMParser()\n  ajax$\n    .pipe(\n      map(({ response }) => dom.parseFromString(response, \"text/html\"))\n    )\n      .subscribe(document$)\n\n  /* Intercept instant loading */\n  const instant$ = merge(push$, pop$)\n    .pipe(\n      sample(document$)\n    )\n\n  // TODO: this must be combined with search scroll restoration on mobile\n  instant$.subscribe(({ url, offset }) => {\n    if (url.hash && !offset) {\n      setLocationHash(url.hash)\n    } else {\n      setViewportOffset(offset || { y: 0 })\n    }\n  })\n\n  /* Replace document metadata */\n  instant$\n    .pipe(\n      withLatestFrom(document$)\n    )\n      .subscribe(([, { title, head }]) => {\n        document.title = title\n\n        /* Replace meta tags */\n        for (const selector of [\n          `link[rel=\"canonical\"]`,\n          `meta[name=\"author\"]`,\n          `meta[name=\"description\"]`\n        ]) {\n          const next = getElement(selector, head)\n          const prev = getElement(selector, document.head)\n          if (\n            typeof next !== \"undefined\" &&\n            typeof prev !== \"undefined\"\n          ) {\n            replaceElement(prev, next)\n          }\n        }\n\n        /* Finished, dispatch document switch event */\n        document.dispatchEvent(new CustomEvent(\"DOMContentSwitch\"))\n      })\n\n  /* Debounce update of viewport offset */\n  viewport$\n    .pipe(\n      debounceTime(250),\n      distinctUntilKeyChanged(\"offset\")\n    )\n      .subscribe(({ offset }) => {\n        history.replaceState(offset, \"\")\n      })\n\n  /* Set viewport offset from history */\n  merge(state$, pop$)\n    .pipe(\n      bufferCount(2, 1),\n      filter(([prev, next]) => {\n        return prev.url.pathname === next.url.pathname\n            && !isAnchorLocation(next.url)\n      }),\n      map(([, state]) => state)\n    )\n      .subscribe(({ offset }) => {\n        setViewportOffset(offset || { y: 0 })\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport {\n  filter,\n  map,\n  share,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Key,\n  getActiveElement,\n  getElement,\n  getElements,\n  getToggle,\n  isSusceptibleToKeyboard,\n  setElementFocus,\n  setElementSelection,\n  setToggle,\n  watchKeyboard\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n  | \"global\"                           /* Global */\n  | \"search\"                           /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard extends Key {\n  mode: KeyboardMode                   /* Keyboard mode */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up keyboard\n *\n * This function will set up the keyboard handlers and ensure that keys are\n * correctly propagated. Currently there are two modes:\n *\n * - `global`: This mode is active when the search is closed. It is intended\n *   to assign hotkeys to specific functions of the site. Currently the search,\n *   previous and next page can be triggered.\n *\n * - `search`: This mode is active when the search is open. It maps certain\n *   navigational keys to offer search results that can be entirely navigated\n *   through keyboard input.\n *\n * The keyboard observable is returned and can be used to monitor the keyboard\n * in order toassign further hotkeys to custom functions.\n *\n * @return Keyboard observable\n */\nexport function setupKeyboard(): Observable<Keyboard> {\n  const keyboard$ = watchKeyboard()\n    .pipe(\n      map<Key, Keyboard>(key => ({\n        mode: getToggle(\"search\") ? \"search\" : \"global\",\n        ...key\n      })),\n      filter(({ mode }) => {\n        if (mode === \"global\") {\n          const active = getActiveElement()\n          if (typeof active !== \"undefined\")\n            return !isSusceptibleToKeyboard(active)\n        }\n        return true\n      }),\n      share()\n    )\n\n  /* Set up search keyboard handlers */\n  keyboard$\n    .pipe(\n      filter(({ mode }) => mode === \"search\"),\n      withLatestFrom(\n        useComponent(\"search-query\"),\n        useComponent(\"search-result\")\n      )\n    )\n      .subscribe(([key, query, result]) => {\n        const active = getActiveElement()\n        switch (key.type) {\n\n          /* Enter: prevent form submission */\n          case \"Enter\":\n            if (active === query)\n              key.claim()\n            break\n\n          /* Escape or Tab: close search */\n          case \"Escape\":\n          case \"Tab\":\n            setToggle(\"search\", false)\n            setElementFocus(query, false)\n            break\n\n          /* Vertical arrows: select previous or next search result */\n          case \"ArrowUp\":\n          case \"ArrowDown\":\n            if (typeof active === \"undefined\") {\n              setElementFocus(query)\n            } else {\n              const els = [query, ...getElements(\"[href]\", result)]\n              const i = Math.max(0, (\n                Math.max(0, els.indexOf(active)) + els.length + (\n                  key.type === \"ArrowUp\" ? -1 : +1\n                )\n              ) % els.length)\n              setElementFocus(els[i])\n            }\n\n            /* Prevent scrolling of page */\n            key.claim()\n            break\n\n          /* All other keys: hand to search query */\n          default:\n            if (query !== getActiveElement())\n              setElementFocus(query)\n        }\n      })\n\n  /* Set up global keyboard handlers */\n  keyboard$\n    .pipe(\n      filter(({ mode }) => mode === \"global\"),\n      withLatestFrom(useComponent(\"search-query\"))\n    )\n      .subscribe(([key, query]) => {\n        switch (key.type) {\n\n          /* Open search and select query */\n          case \"f\":\n          case \"s\":\n          case \"/\":\n            setElementFocus(query)\n            setElementSelection(query)\n            key.claim()\n            break\n\n          /* Go to previous page */\n          case \"p\":\n          case \",\":\n            const prev = getElement(\"[href][rel=prev]\")\n            if (typeof prev !== \"undefined\")\n              prev.click()\n            break\n\n          /* Go to next page */\n          case \"n\":\n          case \".\":\n            const next = getElement(\"[href][rel=next]\")\n            if (typeof next !== \"undefined\")\n              next.click()\n            break\n        }\n      })\n\n  /* Return keyboard */\n  return keyboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, of } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  map,\n  scan,\n  shareReplay,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { getElement, replaceElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component\n */\nexport type Component =\n  | \"announce\"                         /* Announcement bar */\n  | \"container\"                        /* Container */\n  | \"header\"                           /* Header */\n  | \"header-title\"                     /* Header title */\n  | \"hero\"                             /* Hero */\n  | \"main\"                             /* Main area */\n  | \"navigation\"                       /* Navigation */\n  | \"search\"                           /* Search */\n  | \"search-query\"                     /* Search input */\n  | \"search-reset\"                     /* Search reset */\n  | \"search-result\"                    /* Search results */\n  | \"skip\"                             /* Skip link */\n  | \"tabs\"                             /* Tabs */\n  | \"toc\"                              /* Table of contents */\n\n/**\n * Component map\n */\nexport type ComponentMap = {\n  [P in Component]?: HTMLElement\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Component map observable\n */\nlet components$: Observable<ComponentMap>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up bindings to components with given names\n *\n * This function will maintain bindings to the elements identified by the given\n * names in-between document switches and update the elements in-place.\n *\n * @param names - Component names\n * @param options - Options\n */\nexport function setupComponents(\n  names: Component[], { document$ }: WatchOptions\n): void {\n  components$ = document$\n    .pipe(\n\n      /* Build component map */\n      map(document => names.reduce<ComponentMap>((components, name) => {\n        const el = getElement(`[data-md-component=${name}]`, document)\n        return {\n          ...components,\n          ...typeof el !== \"undefined\" ? { [name]: el } : {}\n        }\n      }, {})),\n\n      /* Re-compute component map on document switch */\n      scan((prev, next) => {\n        for (const name of names) {\n          switch (name) {\n\n            /* Top-level components: update */\n            case \"announce\":\n            case \"header-title\":\n            case \"container\":\n            case \"skip\":\n              if (name in prev && typeof prev[name] !== \"undefined\") {\n                replaceElement(prev[name]!, next[name]!)\n                prev[name] = next[name]\n              }\n              break\n\n            /* All other components: rebind */\n            default:\n              if (typeof next[name] !== \"undefined\")\n                prev[name] = getElement(`[data-md-component=${name}]`)\n              else\n                delete prev[name]\n          }\n        }\n        return prev\n      }),\n\n      /* Convert to hot observable */\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n}\n\n/**\n * Retrieve a component\n *\n * The returned observable will only re-emit if the element changed, i.e. if\n * it was replaced from a document which was switched to.\n *\n * @template T - Element type\n *\n * @param name - Component name\n *\n * @return Component observable\n */\nexport function useComponent<T extends HTMLInputElement>(\n  name: \"search-query\"\n): Observable<T>\nexport function useComponent<T extends HTMLElement>(\n  name: Component\n): Observable<T>\nexport function useComponent<T extends HTMLElement>(\n  name: Component\n): Observable<T> {\n  return components$\n    .pipe(\n      switchMap(components => (\n        typeof components[name] !== \"undefined\"\n          ? of(components[name] as T)\n          : EMPTY\n      )),\n      distinctUntilChanged()\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set anchor blur\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is blurred\n */\nexport function setAnchorBlur(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"blur\" : \"\")\n}\n\n/**\n * Reset anchor blur\n *\n * @param el - Anchor element\n */\nexport function resetAnchorBlur(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set anchor active\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is active\n */\nexport function setAnchorActive(\n  el: HTMLElement, value: boolean\n): void {\n  el.classList.toggle(\"md-nav__link--active\", value)\n}\n\n/**\n * Reset anchor active\n *\n * @param el - Anchor element\n */\nexport function resetAnchorActive(\n  el: HTMLElement\n): void {\n  el.classList.remove(\"md-nav__link--active\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./sidebar\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h, translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  container: \"md-clipboard md-icon\"\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @return Element\n */\nexport function renderClipboardButton(\n  id: string\n) {\n  return (\n    <button\n      class={css.container}\n      title={translate(\"clipboard.copy\")}\n      data-clipboard-target={`#${id} > code`}\n    ></button>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchResult } from \"integrations/search\"\nimport { h, truncate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  item:    \"md-search-result__item\",\n  link:    \"md-search-result__link\",\n  article: \"md-search-result__article md-search-result__article--document\",\n  section: \"md-search-result__article\",\n  title:   \"md-search-result__title\",\n  teaser:  \"md-search-result__teaser\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Path of `content-copy` icon\n */\nconst path =\n  \"M14,2H6A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H13C12.59,21.75 12.2,21.44 \" +\n  \"11.86,21.1C11.53,20.77 11.25,20.4 11,20H6V4H13V9H18V10.18C18.71,10.34 \" +\n  \"19.39,10.61 20,11V8L14,2M20.31,18.9C21.64,16.79 21,14 \" +\n  \"18.91,12.68C16.8,11.35 14,12 12.69,14.08C11.35,16.19 12,18.97 \" +\n  \"14.09,20.3C15.55,21.23 17.41,21.23 \" +\n  \"18.88,20.32L22,23.39L23.39,22L20.31,18.9M16.5,19A2.5,2.5 0 0,1 \" +\n  \"14,16.5A2.5,2.5 0 0,1 16.5,14A2.5,2.5 0 0,1 19,16.5A2.5,2.5 0 0,1 16.5,19Z\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @return Element\n */\nexport function renderSearchResult(\n  { article, sections }: SearchResult\n) {\n\n  /* Render icon */\n  const icon = (\n    <div class=\"md-search-result__icon md-icon\">\n      <svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 24 24\">\n        <path d={path}></path>\n      </svg>\n    </div>\n  )\n\n  /* Render article and sections */\n  const children = [article, ...sections].map(document => {\n    const { location, title, text } = document\n    return (\n      <a href={location} class={css.link} tabIndex={-1}>\n        <article class={\"parent\" in document ? css.section : css.article}>\n          {!(\"parent\" in document) && icon}\n          <h1 class={css.title}>{title}</h1>\n          {text.length > 0 && <p class={css.teaser}>{truncate(text, 320)}</p>}\n        </article>\n      </a>\n    )\n  })\n\n  /* Render search result */\n  return (\n    <li class={css.item}>\n      {children}\n    </li>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"patches/source\"\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  facts: \"md-source__facts\",\n  fact:  \"md-source__fact\"\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render source facts\n *\n * @param facts - Source facts\n *\n * @return Element\n */\nexport function renderSource(\n  facts: SourceFacts\n) {\n  const children = facts.map(fact => (\n    <li class={css.fact}>{fact}</li>\n  ))\n  return (\n    <ul class={css.facts}>\n      {children}\n    </ul>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * CSS classes\n */\nconst css = {\n  wrapper: \"md-typeset__scrollwrap\",\n  table:   \"md-typeset__table\"\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @return Element\n */\nexport function renderTable(\n  table: HTMLTableElement\n) {\n  return (\n    <div class={css.wrapper}>\n      <div class={css.table}>\n        {table}\n      </div>\n    </div>\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar offset\n *\n * @param el - Sidebar element\n * @param value - Sidebar offset\n */\nexport function setSidebarOffset(\n  el: HTMLElement, value: number\n): void {\n  el.style.top = `${value}px`\n}\n\n/**\n * Reset sidebar offset\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarOffset(\n  el: HTMLElement\n): void {\n  el.style.top = \"\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar height\n *\n * @param el - Sidebar element\n * @param value - Sidebar height\n */\nexport function setSidebarHeight(\n  el: HTMLElement, value: number\n): void {\n  el.style.height = `${value}px`\n}\n\n/**\n * Reset sidebar height\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarHeight(\n  el: HTMLElement\n): void {\n  el.style.height = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  ArticleDocument,\n  SearchDocumentMap,\n  SectionDocument,\n  setupSearchDocumentMap\n} from \"../document\"\nimport {\n  SearchHighlightFactoryFn,\n  setupSearchHighlighter\n} from \"../highlighter\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n  lang: string[]                       /* Search languages */\n  separator: string                    /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n  location: string                     /* Document location */\n  title: string                        /* Document title */\n  text: string                         /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n  | \"trimmer\"                          /* Trimmer */\n  | \"stopWordFilter\"                   /* Stop word filter */\n  | \"stemmer\"                          /* Stemmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n  config: SearchIndexConfig            /* Search index configuration */\n  docs: SearchIndexDocument[]          /* Search index documents */\n  index?: object | string              /* Prebuilt or serialized index */\n  pipeline?: SearchIndexPipeline       /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n  article: ArticleDocument             /* Article document */\n  sections: SectionDocument[]          /* Section documents */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @return Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n  const [x, y] = [new Set(a), new Set(b)]\n  return [\n    ...new Set([...x].filter(value => !y.has(value)))\n  ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n  /**\n   * Search document mapping\n   *\n   * A mapping of URLs (including hash fragments) to the actual articles and\n   * sections of the documentation. The search document mapping must be created\n   * regardless of whether the index was prebuilt or not, as `lunr` itself will\n   * only store the actual index.\n   */\n  protected documents: SearchDocumentMap\n\n  /**\n   * Search highlight factory function\n   */\n  protected highlight: SearchHighlightFactoryFn\n\n  /**\n   * The `lunr` search index\n   */\n  protected index: lunr.Index\n\n  /**\n   * Create the search integration\n   *\n   * @param data - Search index\n   */\n  public constructor({ config, docs, pipeline, index }: SearchIndex) {\n    this.documents = setupSearchDocumentMap(docs)\n    this.highlight = setupSearchHighlighter(config)\n\n    /* Set separator for tokenizer */\n    lunr.tokenizer.separator = new RegExp(config.separator)\n\n    /* If no index was given, create it */\n    if (typeof index === \"undefined\") {\n      this.index = lunr(function() {\n\n        /* Set up alternate search languages */\n        if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n          this.use((lunr as any)[config.lang[0]])\n        } else if (config.lang.length > 1) {\n          this.use((lunr as any).multiLanguage(...config.lang))\n        }\n\n        /* Compute functions to be removed from the pipeline */\n        const fns = difference([\n          \"trimmer\", \"stopWordFilter\", \"stemmer\"\n        ], pipeline!)\n\n        /* Remove functions from the pipeline for every language */\n        for (const lang of config.lang.map(language => (\n          language === \"en\" ? lunr : (lunr as any)[language]\n        ))) {\n          for (const fn of fns) {\n            this.pipeline.remove(lang[fn])\n            this.searchPipeline.remove(lang[fn])\n          }\n        }\n\n        /* Set up fields and reference */\n        this.field(\"title\", { boost: 1000 })\n        this.field(\"text\")\n        this.ref(\"location\")\n\n        /* Index documents */\n        for (const doc of docs)\n          this.add(doc)\n      })\n\n    /* Prebuilt or serialized index */\n    } else {\n      this.index = lunr.Index.load(\n        typeof index === \"string\"\n          ? JSON.parse(index)\n          : index\n      )\n    }\n  }\n\n  /**\n   * Search for matching documents\n   *\n   * The search index which MkDocs provides is divided up into articles, which\n   * contain the whole content of the individual pages, and sections, which only\n   * contain the contents of the subsections obtained by breaking the individual\n   * pages up at `h1` ... `h6`. As there may be many sections on different pages\n   * with identical titles (for example within this very project, e.g. \"Usage\"\n   * or \"Installation\"), they need to be put into the context of the containing\n   * page. For this reason, section results are grouped within their respective\n   * articles which are the top-level results that are returned.\n   *\n   * @param value - Query value\n   *\n   * @return Search results\n   */\n  public query(value: string): SearchResult[] {\n    if (value) {\n      try {\n\n        /* Group sections by containing article */\n        const groups = this.index.search(value)\n          .reduce((results, result) => {\n            const document = this.documents.get(result.ref)\n            if (typeof document !== \"undefined\") {\n              if (\"parent\" in document) {\n                const ref = document.parent.location\n                results.set(ref, [...results.get(ref) || [], result])\n              } else {\n                const ref = document.location\n                results.set(ref, results.get(ref) || [])\n              }\n            }\n            return results\n          }, new Map<string, lunr.Index.Result[]>())\n\n        /* Create highlighter for query */\n        const fn = this.highlight(value)\n\n        /* Map groups to search documents */\n        return [...groups].map(([ref, sections]) => ({\n          article: fn(this.documents.get(ref) as ArticleDocument),\n          sections: sections.map(section => {\n            return fn(this.documents.get(section.ref) as SectionDocument)\n          })\n        }))\n\n      /* Log errors to console (for now) */\n      } catch (err) {\n        // tslint:disable-next-line no-console\n        console.warn(`Invalid query: ${value} – see https://bit.ly/2s3ChXG`)\n      }\n    }\n\n    /* Return nothing in case of error or empty query */\n    return []\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * A top-level article\n */\nexport interface ArticleDocument extends SearchIndexDocument {\n  linked: boolean                      /* Whether the section was linked */\n}\n\n/**\n * A section of an article\n */\nexport interface SectionDocument extends SearchIndexDocument {\n  parent: ArticleDocument              /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport type SearchDocument =\n  | ArticleDocument\n  | SectionDocument\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map<string, SearchDocument>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n  docs: SearchIndexDocument[]\n): SearchDocumentMap {\n  const documents = new Map<string, SearchDocument>()\n  for (const doc of docs) {\n    const [path, hash] = doc.location.split(\"#\")\n\n    /* Extract location and title */\n    const location = doc.location\n    const title    = doc.title\n\n    /* Escape and cleanup text */\n    const text = escapeHTML(doc.text)\n      .replace(/\\s+(?=[,.:;!?])/g, \"\")\n      .replace(/\\s+/g, \" \")\n\n    /* Handle section */\n    if (hash) {\n      const parent = documents.get(path) as ArticleDocument\n\n      /* Ignore first section, override article */\n      if (!parent.linked) {\n        parent.title  = doc.title\n        parent.text   = text\n        parent.linked = true\n\n      /* Add subsequent section */\n      } else {\n        documents.set(location, {\n          location,\n          title,\n          text,\n          parent\n        })\n      }\n\n    /* Add article */\n    } else {\n      documents.set(location, {\n        location,\n        title,\n        text,\n        linked: false\n      })\n    }\n  }\n  return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\nimport { SearchDocument } from \"../document\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @template T - Search document type\n *\n * @param document - Search document\n *\n * @return Highlighted document\n */\nexport type SearchHighlightFn = <\n  T extends SearchDocument\n>(document: Readonly<T>) => T\n\n/**\n * Search highlight factory function\n *\n * @param value - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (value: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n  config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n  const separator = new RegExp(config.separator, \"img\")\n  const highlight = (_: unknown, data: string, term: string) => {\n    return `${data}<em>${term}</em>`\n  }\n\n  /* Return factory function */\n  return (value: string) => {\n    value = value\n      .replace(/[\\s*+\\-:~^]+/g, \" \")\n      .trim()\n\n    /* Create search term match expression */\n    const match = new RegExp(`(^|${config.separator})(${\n      value\n        .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n        .replace(separator, \"|\")\n    })`, \"img\")\n\n    /* Highlight document */\n    return document => ({\n      ...document,\n      title: document.title.replace(match, highlight),\n      text:  document.text.replace(match, highlight)\n    })\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * 1. Search for terms in quotation marks and prepend a `+` modifier to denote\n *    that the resulting document must contain all terms, converting the query\n *    to an `AND` query (as opposed to the default `OR` behavior). While users\n *    may expect terms enclosed in quotation marks to map to span queries, i.e.\n *    for which order is important, `lunr` doesn't support them, so the best\n *    we can do is to convert the terms to an `AND` query.\n *\n * 2. Replace control characters which are not located at the beginning of the\n *    query or preceded by white space, or are not followed by a non-whitespace\n *    character or are at the end of the query string. Furthermore, filter\n *    unmatched quotation marks.\n *\n * 3. Trim excess whitespace from left and right.\n *\n * 4. Append a wildcard to the end of every word to make every word a prefix\n *    query in order to provide a good typeahead experience, by adding an\n *    asterisk (wildcard) in between terms, which can be denoted by whitespace,\n *    any non-control character, or a word boundary.\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport function defaultTransform(value: string): string {\n  return value\n    .split(/\"([^\"]+)\"/g)                            /* => 1 */\n      .map((terms, i) => i & 1\n        ? terms.replace(/^\\b|^(?![^\\x00-\\x7F]|$)|\\s+/g, \" +\")\n        : terms\n      )\n      .join(\"\")\n    .replace(/\"|(?:^|\\s+)[*+\\-:^~]+(?=\\s+|$)/g, \"\") /* => 2 */\n    .trim()                                         /* => 3 */\n    .replace(/\\s+|(?![^\\x00-\\x7F]|^)$|\\b$/g, \"* \")  /* => 4 */\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n  SETUP,                               /* Search index setup */\n  READY,                               /* Search index ready */\n  QUERY,                               /* Search query */\n  RESULT                               /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n  type: SearchMessageType.SETUP        /* Message type */\n  data: SearchIndex                    /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n  type: SearchMessageType.READY        /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n  type: SearchMessageType.QUERY        /* Message type */\n  data: string                         /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n  type: SearchMessageType.RESULT       /* Message type */\n  data: SearchResult[]                 /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n  | SearchSetupMessage\n  | SearchReadyMessage\n  | SearchQueryMessage\n  | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n  message: SearchMessage\n): message is SearchSetupMessage {\n  return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n  message: SearchMessage\n): message is SearchReadyMessage {\n  return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n  message: SearchMessage\n): message is SearchQueryMessage {\n  return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n  message: SearchMessage\n): message is SearchResultMessage {\n  return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, Subject, asyncScheduler } from \"rxjs\"\nimport {\n  map,\n  observeOn,\n  share,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchWorker } from \"browser\"\nimport { translate } from \"utilities\"\n\nimport { SearchIndex, SearchIndexPipeline } from \"../../_\"\nimport {\n  SearchMessage,\n  SearchMessageType,\n  SearchSetupMessage,\n  isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n  index$: Observable<SearchIndex>      /* Search index observable */\n  base$: Observable<string>            /* Location base observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @return Search index\n */\nfunction setupSearchIndex(\n  { config, docs, index }: SearchIndex\n): SearchIndex {\n\n  /* Override default language with value from translation */\n  if (config.lang.length === 1 && config.lang[0] === \"en\")\n    config.lang = [translate(\"search.config.lang\")]\n\n  /* Override default separator with value from translation */\n  if (config.separator === \"[\\\\s\\\\-]+\")\n    config.separator = translate(\"search.config.separator\")\n\n  /* Set pipeline from translation */\n  const pipeline = translate(\"search.config.pipeline\")\n    .split(/\\s*,\\s*/)\n    .filter(identity) as SearchIndexPipeline\n\n  /* Return search index after defaulting */\n  return { config, docs, index, pipeline }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search web worker\n *\n * This function will create a web worker to set up and query the search index\n * which is done using `lunr`. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param options - Options\n *\n * @return Worker handler\n */\nexport function setupSearchWorker(\n  url: string, { index$, base$ }: SetupOptions\n): WorkerHandler<SearchMessage> {\n  const worker = new Worker(url)\n\n  /* Create communication channels and resolve relative links */\n  const tx$ = new Subject<SearchMessage>()\n  const rx$ = watchWorker(worker, { tx$ })\n    .pipe(\n      withLatestFrom(base$),\n      map(([message, base]) => {\n        if (isSearchResultMessage(message)) {\n          for (const { article, sections } of message.data) {\n            article.location = `${base}/${article.location}`\n            for (const section of sections)\n              section.location = `${base}/${section.location}`\n          }\n        }\n        return message\n      }),\n      share()\n    )\n\n  /* Set up search index */\n  index$\n    .pipe(\n      map<SearchIndex, SearchSetupMessage>(index => ({\n        type: SearchMessageType.SETUP,\n        data: setupSearchIndex(index)\n      })),\n      observeOn(asyncScheduler)\n    )\n      .subscribe(tx$.next.bind(tx$))\n\n  /* Return worker handler */\n  return { tx$, rx$ }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\nimport {\n  Sidebar,\n  applySidebar,\n  watchSidebar\n} from \"../shared\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation for [screen -]\n */\ninterface NavigationBelowScreen {} // tslint:disable-line\n\n/**\n * Navigation for [screen +]\n */\ninterface NavigationAboveScreen {\n  sidebar: Sidebar                     /* Sidebar */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Navigation\n */\nexport type Navigation =\n  | NavigationBelowScreen\n  | NavigationAboveScreen\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  screen$: Observable<boolean>         /* Screen media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount navigation from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountNavigation(\n  { header$, main$, viewport$, screen$ }: MountOptions\n): OperatorFunction<HTMLElement, Navigation> {\n  return pipe(\n    switchMap(el => screen$\n      .pipe(\n        switchMap(screen => {\n\n          /* [screen +]: Mount navigation in sidebar */\n          if (screen) {\n            return watchSidebar(el, { main$, viewport$ })\n              .pipe(\n                applySidebar(el, { header$ }),\n                map(sidebar => ({ sidebar }))\n              )\n\n          /* [screen -]: Mount navigation in drawer */\n          } else {\n            return of({})\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  finalize,\n  map,\n  observeOn,\n  tap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { Main } from \"../../../main\"\nimport { Sidebar } from \"../_\"\nimport {\n  resetSidebarHeight,\n  resetSidebarOffset,\n  setSidebarHeight,\n  setSidebarOffset\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n  header$: Observable<Header>          /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Sidebar observable\n */\nexport function watchSidebar(\n  el: HTMLElement, { main$, viewport$ }: WatchOptions\n): Observable<Sidebar> {\n  const adjust = el.parentElement!.offsetTop\n               - el.parentElement!.parentElement!.offsetTop\n\n  /* Compute the sidebar's available height and if it should be locked */\n  return combineLatest([main$, viewport$])\n    .pipe(\n      map(([{ offset, height }, { offset: { y } }]) => {\n        height = height\n          + Math.min(adjust, Math.max(0, y - offset))\n          - adjust\n        return {\n          height,\n          lock: y >= offset + adjust\n        }\n      }),\n      distinctUntilChanged<Sidebar>((a, b) => {\n        return a.height === b.height\n            && a.lock   === b.lock\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply sidebar\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySidebar(\n  el: HTMLElement, { header$ }: ApplyOptions\n): MonoTypeOperatorFunction<Sidebar> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    withLatestFrom(header$),\n    tap(([{ height, lock }, { height: offset }]) => {\n      setSidebarHeight(el, height)\n\n      /* Set offset in locked state depending on header height */\n      if (lock)\n        setSidebarOffset(el, offset)\n      else\n        resetSidebarOffset(el)\n    }),\n\n    /* Re-map to sidebar */\n    map(([sidebar]) => sidebar),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetSidebarOffset(el)\n      resetSidebarHeight(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./anchor\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  Observable,\n  OperatorFunction,\n  combineLatest,\n  of,\n  pipe\n} from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../../main\"\nimport {\n  Sidebar,\n  applySidebar,\n  watchSidebar\n} from \"../../shared\"\nimport {\n  AnchorList,\n  applyAnchorList,\n  watchAnchorList\n} from \"../anchor\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents for [tablet -]\n */\ninterface TableOfContentsBelowTablet {} // tslint:disable-line\n\n/**\n * Table of contents for [tablet +]\n */\ninterface TableOfContentsAboveTablet {\n  sidebar: Sidebar                     /* Sidebar */\n  anchors: AnchorList                  /* Anchor list */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport type TableOfContents =\n  | TableOfContentsBelowTablet\n  | TableOfContentsAboveTablet\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  main$: Observable<Main>              /* Main area observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  tablet$: Observable<boolean>         /* Tablet media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTableOfContents(\n  { header$, main$, viewport$, tablet$ }: MountOptions\n): OperatorFunction<HTMLElement, TableOfContents> {\n  return pipe(\n    switchMap(el => tablet$\n      .pipe(\n        switchMap(tablet => {\n\n          /* [tablet +]: Mount table of contents in sidebar */\n          if (tablet) {\n            const els = getElements<HTMLAnchorElement>(\".md-nav__link\", el)\n\n            /* Watch and apply sidebar */\n            const sidebar$ = watchSidebar(el, { main$, viewport$ })\n              .pipe(\n                applySidebar(el, { header$ })\n              )\n\n            /* Watch and apply anchor list (scroll spy) */\n            const anchors$ = watchAnchorList(els, { header$, viewport$ })\n              .pipe(\n                applyAnchorList(els)\n              )\n\n            /* Combine into single hot observable */\n            return combineLatest([sidebar$, anchors$])\n              .pipe(\n                map(([sidebar, anchors]) => ({ sidebar, anchors }))\n              )\n\n          /* [tablet -]: Unmount table of contents */\n          } else {\n            return of({})\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { reverse } from \"ramda\"\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  bufferCount,\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  finalize,\n  map,\n  observeOn,\n  scan,\n  startWith,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { Viewport, getElement, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { AnchorList } from \"../_\"\nimport {\n  resetAnchorActive,\n  resetAnchorBlur,\n  setAnchorActive,\n  setAnchorBlur\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch anchor list\n *\n * This is effectively a scroll-spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the anchor list needs\n * to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param els - Anchor elements\n * @param options - Options\n *\n * @return Anchor list observable\n */\nexport function watchAnchorList(\n  els: HTMLAnchorElement[], { header$, viewport$ }: WatchOptions\n): Observable<AnchorList> {\n  const table = new Map<HTMLAnchorElement, HTMLElement>()\n  for (const el of els) {\n    const id = decodeURIComponent(el.hash.substring(1))\n    const target = getElement(`[id=\"${id}\"]`)\n    if (typeof target !== \"undefined\")\n      table.set(el, target)\n  }\n\n  /* Compute necessary adjustment for header */\n  const adjust$ = header$\n    .pipe(\n      map(header => 18 + header.height)\n    )\n\n  /* Compute partition of previous and next anchors */\n  const partition$ = watchElementSize(document.body)\n    .pipe(\n      distinctUntilKeyChanged(\"height\"),\n\n      /* Build index to map anchor paths to vertical offsets */\n      map(() => {\n        let path: HTMLAnchorElement[] = []\n        return [...table].reduce((index, [anchor, target]) => {\n          while (path.length) {\n            const last = table.get(path[path.length - 1])!\n            if (last.tagName >= target.tagName) {\n              path.pop()\n            } else {\n              break\n            }\n          }\n\n          /* If the current anchor is hidden, continue with its parent */\n          let offset = target.offsetTop\n          while (!offset && target.parentElement) {\n            target = target.parentElement\n            offset = target.offsetTop\n          }\n\n          /* Map reversed anchor path to vertical offset */\n          return index.set(\n            reverse(path = [...path, anchor]),\n            offset\n          )\n        }, new Map<HTMLAnchorElement[], number>())\n      }),\n\n      /* Re-compute partition when viewport offset changes */\n      switchMap(index => combineLatest([adjust$, viewport$])\n        .pipe(\n          scan(([prev, next], [adjust, { offset: { y } }]) => {\n\n            /* Look forward */\n            while (next.length) {\n              const [, offset] = next[0]\n              if (offset - adjust < y) {\n                prev = [...prev, next.shift()!]\n              } else {\n                break\n              }\n            }\n\n            /* Look backward */\n            while (prev.length) {\n              const [, offset] = prev[prev.length - 1]\n              if (offset - adjust >= y) {\n                next = [prev.pop()!, ...next]\n              } else {\n                break\n              }\n            }\n\n            /* Return partition */\n            return [prev, next]\n          }, [[], [...index]]),\n          distinctUntilChanged((a, b) => {\n            return a[0] === b[0]\n                && a[1] === b[1]\n          })\n        )\n      )\n    )\n\n  /* Compute and return anchor list migrations */\n  return partition$\n    .pipe(\n      map(([prev, next]) => ({\n        prev: prev.map(([path]) => path),\n        next: next.map(([path]) => path)\n      })),\n\n      /* Extract anchor list migrations */\n      startWith({ prev: [], next: [] }),\n      bufferCount(2, 1),\n      map(([a, b]) => {\n\n        /* Moving down */\n        if (a.prev.length < b.prev.length) {\n          return {\n            prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n            next: []\n          }\n\n        /* Moving up */\n        } else {\n          return {\n            prev: b.prev.slice(-1),\n            next: b.next.slice(0, b.next.length - a.next.length)\n          }\n        }\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply anchor list\n *\n * @param els - Anchor elements\n *\n * @return Operator function\n */\nexport function applyAnchorList(\n  els: HTMLAnchorElement[]\n): MonoTypeOperatorFunction<AnchorList> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ prev, next }) => {\n\n      /* Look forward */\n      for (const [el] of next) {\n        resetAnchorActive(el)\n        resetAnchorBlur(el)\n      }\n\n      /* Look backward */\n      prev.forEach(([el], index) => {\n        setAnchorActive(el, index === prev.length - 1)\n        setAnchorBlur(el, true)\n      })\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      for (const el of els) {\n        resetAnchorActive(el)\n        resetAnchorBlur(el)\n      }\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n  filter,\n  map,\n  mapTo,\n  sample,\n  startWith,\n  switchMap,\n  take\n} from \"rxjs/operators\"\n\nimport { WorkerHandler } from \"browser\"\nimport {\n  SearchMessage,\n  SearchResult,\n  isSearchQueryMessage,\n  isSearchReadyMessage\n} from \"integrations/search\"\n\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search status\n */\nexport type SearchStatus =\n  | \"waiting\"                          /* Search waiting for initialization */\n  | \"ready\"                            /* Search ready */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport interface Search {\n  status: SearchStatus                 /* Search status */\n  query: SearchQuery                   /* Search query */\n  result: SearchResult[]               /* Search result list */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  query$: Observable<SearchQuery>      /* Search query observable */\n  reset$: Observable<void>             /* Search reset observable */\n  result$: Observable<SearchResult[]>  /* Search result observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearch(\n  { rx$, tx$ }: WorkerHandler<SearchMessage>,\n  { query$, reset$, result$ }: MountOptions\n): OperatorFunction<HTMLElement, Search> {\n  return pipe(\n    switchMap(() => {\n\n      /* Compute search status */\n      const status$ = rx$\n        .pipe(\n          filter(isSearchReadyMessage),\n          mapTo<SearchStatus>(\"ready\"),\n          startWith(\"waiting\")\n        ) as Observable<SearchStatus>\n\n      /* Re-emit the latest query when search is ready */\n      tx$\n        .pipe(\n          filter(isSearchQueryMessage),\n          sample(status$),\n          take(1)\n        )\n          .subscribe(tx$.next.bind(tx$))\n\n      /* Combine into single observable */\n      return combineLatest([status$, query$, result$, reset$])\n        .pipe(\n          map(([status, query, result]) => ({\n            status,\n            query,\n            result\n          }))\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, setToggle } from \"browser\"\nimport {\n  SearchMessage,\n  SearchMessageType,\n  SearchQueryMessage,\n  SearchTransformFn\n} from \"integrations\"\n\nimport { watchSearchQuery } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n  value: string                        /* Query value */\n  focus: boolean                       /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  transform?: SearchTransformFn        /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search query from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchQuery(\n  { tx$ }: WorkerHandler<SearchMessage>, options: MountOptions = {}\n): OperatorFunction<HTMLInputElement, SearchQuery> {\n  return pipe(\n    switchMap(el => {\n      const query$ = watchSearchQuery(el, options)\n\n      /* Subscribe worker to search query */\n      query$\n        .pipe(\n          distinctUntilKeyChanged(\"value\"),\n          map(({ value }): SearchQueryMessage => ({\n            type: SearchMessageType.QUERY,\n            data: value\n          }))\n        )\n          .subscribe(tx$.next.bind(tx$))\n\n      /* Toggle search on focus */\n      query$\n        .pipe(\n          distinctUntilKeyChanged(\"focus\")\n        )\n          .subscribe(({ focus }) => {\n            if (focus)\n              setToggle(\"search\", focus)\n          })\n\n      /* Return search query */\n      return query$\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest, fromEvent, merge } from \"rxjs\"\nimport {\n  delay,\n  distinctUntilChanged,\n  map,\n  startWith\n} from \"rxjs/operators\"\n\nimport { watchElementFocus } from \"browser\"\nimport { SearchTransformFn, defaultTransform } from \"integrations\"\n\nimport { SearchQuery } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  transform?: SearchTransformFn        /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n * @param options - Options\n *\n * @return Search query observable\n */\nexport function watchSearchQuery(\n  el: HTMLInputElement, { transform }: WatchOptions = {}\n): Observable<SearchQuery> {\n  const fn = transform || defaultTransform\n\n  /* Intercept keyboard events */\n  const value$ = merge(\n    fromEvent(el, \"keyup\"),\n    fromEvent(el, \"focus\").pipe(delay(1))\n  )\n    .pipe(\n      map(() => fn(el.value)),\n      startWith(fn(el.value)),\n      distinctUntilChanged()\n    )\n\n  /* Intercept focus events */\n  const focus$ = watchElementFocus(el)\n\n  /* Combine into single observable */\n  return combineLatest([value$, focus$])\n    .pipe(\n      map(([value, focus]) => ({ value, focus }))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n  mapTo,\n  startWith,\n  switchMap,\n  switchMapTo,\n  tap\n} from \"rxjs/operators\"\n\nimport { setElementFocus } from \"browser\"\n\nimport { useComponent } from \"../../../_\"\nimport { watchSearchReset } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search reset from source observable\n *\n * @return Operator function\n */\nexport function mountSearchReset(): OperatorFunction<HTMLElement, void> {\n  return pipe(\n    switchMap(el => watchSearchReset(el)\n      .pipe(\n        switchMapTo(useComponent(\"search-query\")),\n        tap(setElementFocus),\n        mapTo(undefined)\n      )\n    ),\n    startWith(undefined)\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search reset\n *\n * @param el - Search reset element\n *\n * @return Search reset observable\n */\nexport function watchSearchReset(\n  el: HTMLElement\n): Observable<void> {\n  return fromEvent(el, \"click\")\n    .pipe(\n      mapTo(undefined)\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set number of search results\n *\n * @param el - Search result metadata element\n * @param value - Number of results\n */\nexport function setSearchResultMeta(\n  el: HTMLElement, value: number\n): void {\n  switch (value) {\n\n    /* No results */\n    case 0:\n      el.textContent = translate(\"search.result.none\")\n      break\n\n    /* One result */\n    case 1:\n      el.textContent = translate(\"search.result.one\")\n      break\n\n    /* Multiple result */\n    default:\n      el.textContent = translate(\"search.result.other\", value.toString())\n  }\n}\n\n/**\n * Reset number of search results\n *\n * @param el - Search result metadata element\n */\nexport function resetSearchResultMeta(\n  el: HTMLElement\n): void {\n  el.textContent = translate(\"search.result.placeholder\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Add an element to the search result list\n *\n * @param el - Search result list element\n * @param child - Search result element\n */\nexport function addToSearchResultList(\n  el: HTMLElement, child: Element\n): void {\n  el.appendChild(child)\n}\n\n/**\n * Reset search result list\n *\n * @param el - Search result list element\n */\nexport function resetSearchResultList(\n  el: HTMLElement\n): void {\n  el.innerHTML = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport {\n  finalize,\n  map,\n  mapTo,\n  observeOn,\n  scan,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"browser\"\nimport { SearchResult } from \"integrations/search\"\nimport { renderSearchResult } from \"templates\"\n\nimport { SearchQuery } from \"../../query\"\nimport {\n  addToSearchResultList,\n  resetSearchResultList,\n  resetSearchResultMeta,\n  setSearchResultMeta\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n  query$: Observable<SearchQuery>     /* Search query observable */\n  ready$: Observable<boolean>         /* Search ready observable */\n  fetch$: Observable<boolean>         /* Result fetch observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply search results\n *\n * This function will perform a lazy rendering of the search results, depending\n * on the vertical offset of the search result container. When the scroll offset\n * reaches the bottom of the element, more results are fetched and rendered.\n *\n * @param el - Search result element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySearchResult(\n  el: HTMLElement, { query$, ready$, fetch$ }: ApplyOptions\n): MonoTypeOperatorFunction<SearchResult[]> {\n  const list = getElementOrThrow(\".md-search-result__list\", el)\n  const meta = getElementOrThrow(\".md-search-result__meta\", el)\n  return pipe(\n\n    /* Apply search result metadata */\n    withLatestFrom(query$, ready$),\n    map(([result, query]) => {\n      if (query.value) {\n        setSearchResultMeta(meta, result.length)\n      } else {\n        resetSearchResultMeta(meta)\n      }\n      return result\n    }),\n\n    /* Apply search result list */\n    switchMap(result => fetch$\n      .pipe(\n\n        /* Defer repaint to next animation frame */\n        observeOn(animationFrameScheduler),\n        scan(index => {\n          const container = el.parentElement!\n          while (index < result.length) {\n            addToSearchResultList(list, renderSearchResult(result[index++]))\n            if (container.scrollHeight - container.offsetHeight > 16)\n              break\n          }\n          return index\n        }, 0),\n\n        /* Re-map to search result */\n        mapTo(result),\n\n        /* Reset on complete or error */\n        finalize(() => {\n          resetSearchResultList(list)\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  filter,\n  map,\n  mapTo,\n  pluck,\n  startWith,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchElementOffset } from \"browser\"\nimport {\n  SearchMessage,\n  SearchResult,\n  isSearchReadyMessage,\n  isSearchResultMessage\n} from \"integrations\"\n\nimport { SearchQuery } from \"../../query\"\nimport { applySearchResult } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  query$: Observable<SearchQuery>      /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchResult(\n  { rx$ }: WorkerHandler<SearchMessage>, { query$ }: MountOptions\n): OperatorFunction<HTMLElement, SearchResult[]> {\n  return pipe(\n    switchMap(el => {\n      const container = el.parentElement!\n\n      /* Compute if search is ready */\n      const ready$ = rx$\n        .pipe(\n          filter(isSearchReadyMessage),\n          mapTo(true)\n        )\n\n      /* Compute whether there are more search results to fetch */\n      const fetch$ = watchElementOffset(container)\n        .pipe(\n          map(({ y }) => {\n            return y >= container.scrollHeight - container.offsetHeight - 16\n          }),\n          distinctUntilChanged(),\n          filter(identity)\n        )\n\n      /* Apply search results */\n      return rx$\n        .pipe(\n          filter(isSearchResultMessage),\n          pluck(\"data\"),\n          applySearchResult(el, { query$, ready$, fetch$ }),\n          startWith([])\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  Observable,\n  OperatorFunction,\n  Subject,\n  noop,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  finalize,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport { Header } from \"../../header\"\nimport {\n  applyHeaderShadow,\n  watchMain\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n  offset: number                       /* Main area top offset */\n  height: number                       /* Main area visible height */\n  active: boolean                      /* Scrolled past top offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount main area from source observable\n *\n * The header must be connected to the main area observable outside of the\n * operator function, as the header will persist in-between document switches\n * while the main area is replaced. However, the header observable must be\n * passed to this function, so we connect both via a long-living subject.\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountMain(\n  { header$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Main> {\n  const main$ = new Subject<Main>()\n\n  /* Connect to main area observable via long-living subject */\n  useComponent(\"header\")\n    .pipe(\n      switchMap(header => main$\n        .pipe(\n          distinctUntilKeyChanged(\"active\"),\n          applyHeaderShadow(header)\n        )\n      )\n    )\n      .subscribe(noop)\n\n  /* Return operator */\n  return pipe(\n    switchMap(el => watchMain(el, { header$, viewport$ })),\n    tap(main => main$.next(main)),\n    finalize(() => main$.complete())\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  combineLatest,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  distinctUntilKeyChanged,\n  finalize,\n  map,\n  observeOn,\n  pluck,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../_\"\nimport {\n  resetHeaderShadow,\n  setHeaderShadow\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @return Main area observable\n */\nexport function watchMain(\n  el: HTMLElement, { header$, viewport$ }: WatchOptions\n): Observable<Main> {\n\n  /* Compute necessary adjustment for header */\n  const adjust$ = header$\n    .pipe(\n      pluck(\"height\"),\n      distinctUntilChanged()\n    )\n\n  /* Compute the main area's top and bottom borders */\n  const border$ = adjust$\n    .pipe(\n      switchMap(() => watchElementSize(el)\n        .pipe(\n          map(({ height }) => ({\n            top:    el.offsetTop,\n            bottom: el.offsetTop + height\n          })),\n          distinctUntilKeyChanged(\"bottom\")\n        )\n      )\n    )\n\n  /* Compute the main area's offset, visible height and if we scrolled past */\n  return combineLatest([adjust$, border$, viewport$])\n    .pipe(\n      map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n        height = Math.max(0, height\n          - Math.max(0, top    - y,  header)\n          - Math.max(0, height + y - bottom)\n        )\n        return {\n          offset: top - header,\n          height,\n          active: top - header <= y\n        }\n      }),\n      distinctUntilChanged<Main>((a, b) => {\n        return a.offset === b.offset\n            && a.height === b.height\n            && a.active === b.active\n      })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header shadow\n *\n * @param el - Header element\n *\n * @return Operator function\n */\nexport function applyHeaderShadow(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Main> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ active }) => {\n      setHeaderShadow(el, active)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeaderShadow(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header shadow\n *\n * @param el - Header element\n * @param value - Whether the shadow is shown\n */\nexport function setHeaderShadow(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"shadow\" : \"\")\n}\n\n/**\n * Reset header shadow\n *\n * @param el - Header element\n */\nexport function resetHeaderShadow(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyHero } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Hero\n */\nexport interface Hero {\n  hidden: boolean                      /* Whether the hero is hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount hero from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHero(\n  { header$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Hero> {\n  return pipe(\n    switchMap(el => watchViewportAt(el, { header$, viewport$ })\n      .pipe(\n        map(({ offset: { y } }) => ({ hidden: y >= 20 })),\n        distinctUntilKeyChanged(\"hidden\"),\n        applyHero(el)\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Hero } from \"../_\"\nimport {\n  resetHeroHidden,\n  setHeroHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply hero\n *\n * @param el - Hero element\n *\n * @return Operator function\n */\nexport function applyHero(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Hero> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ hidden }) => {\n      setHeroHidden(el, hidden)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeroHidden(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set hero hidden\n *\n * @param el - Hero element\n * @param value - Whether the element is hidden\n */\nexport function setHeroHidden(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset hero hidden\n *\n * @param el - Hero element\n */\nexport function resetHeroHidden(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport {\n  distinctUntilKeyChanged,\n  map,\n  switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyTabs } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Tabs\n */\nexport interface Tabs {\n  hidden: boolean                      /* Whether the tabs are hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  header$: Observable<Header>          /* Header observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n  screen$: Observable<boolean>         /* Media screen observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount tabs from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTabs(\n  { header$, viewport$, screen$ }: MountOptions\n): OperatorFunction<HTMLElement, Tabs> {\n  return pipe(\n    switchMap(el => screen$\n      .pipe(\n        switchMap(screen => {\n\n          /* [screen +]: Mount tabs above screen breakpoint */\n          if (screen) {\n            return watchViewportAt(el, { header$, viewport$ })\n              .pipe(\n                map(({ offset: { y } }) => ({ hidden: y >= 10 })),\n                distinctUntilKeyChanged(\"hidden\"),\n                applyTabs(el)\n              )\n\n          /* [screen -]: Unmount tabs below screen breakpoint */\n          } else {\n            return of({ hidden: true })\n          }\n        })\n      )\n    )\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  animationFrameScheduler,\n  pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Tabs } from \"../_\"\nimport {\n  resetTabsHidden,\n  setTabsHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply tabs\n *\n * @param el - Tabs element\n *\n * @return Operator function\n */\nexport function applyTabs(\n  el: HTMLElement\n): MonoTypeOperatorFunction<Tabs> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(({ hidden }) => {\n      setTabsHidden(el, hidden)\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetTabsHidden(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set tabs hidden\n *\n * @param el - Tabs element\n * @param value - Whether the element is hidden\n */\nexport function setTabsHidden(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset tabs hidden\n *\n * @param el - Tabs element\n */\nexport function resetTabsHidden(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  filter,\n  map,\n  startWith,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  Viewport,\n  getElement,\n  watchViewportAt\n} from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport {\n  applyHeaderType,\n  watchHeader\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header type\n */\nexport type HeaderType =\n  | \"site\"                             /* Header shows site title */\n  | \"page\"                             /* Header shows page title */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n  type: HeaderType                     /* Header type */\n  sticky: boolean                      /* Header stickyness */\n  height: number                       /* Header visible height */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount header from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHeader(\n  { document$, viewport$ }: MountOptions\n): OperatorFunction<HTMLElement, Header> {\n  return pipe(\n    switchMap(el => {\n      const header$ = watchHeader(el, { document$ })\n\n      /* Compute whether the header should switch to page header */\n      const type$ = useComponent(\"main\")\n        .pipe(\n          map(main => getElement(\"h1, h2, h3, h4, h5, h6\", main)!),\n          filter(hx => typeof hx !== \"undefined\"),\n          withLatestFrom(useComponent(\"header-title\")),\n          switchMap(([hx, title]) => watchViewportAt(hx, { header$, viewport$ })\n            .pipe(\n              map(({ offset: { y } }) => {\n                return y >= hx.offsetHeight ? \"page\" : \"site\"\n              }),\n              distinctUntilChanged(),\n              applyHeaderType(title)\n            )\n          ),\n          startWith<HeaderType>(\"site\")\n        )\n\n      /* Combine into single observable */\n      return combineLatest([header$, type$])\n        .pipe(\n          map(([header, type]): Header => ({ type, ...header }))\n        )\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  MonoTypeOperatorFunction,\n  Observable,\n  animationFrameScheduler,\n  of,\n  pipe\n} from \"rxjs\"\nimport {\n  distinctUntilChanged,\n  finalize,\n  map,\n  observeOn,\n  shareReplay,\n  switchMap,\n  tap\n} from \"rxjs/operators\"\n\nimport { watchElementSize } from \"browser\"\n\nimport { Header, HeaderType } from \"../_\"\nimport {\n  resetHeaderTitleActive,\n  setHeaderTitleActive\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n *\n * @return Header observable\n */\nexport function watchHeader(\n  el: HTMLElement, { document$ }: WatchOptions\n): Observable<Omit<Header, \"type\">> {\n  return document$\n    .pipe(\n      map(() => {\n        const styles = getComputedStyle(el)\n        return [\n          \"sticky\",                    /* Modern browsers */\n          \"-webkit-sticky\"             /* Safari */\n        ].includes(styles.position)\n      }),\n      distinctUntilChanged(),\n      switchMap(sticky => {\n        if (sticky) {\n          return watchElementSize(el)\n            .pipe(\n              map(({ height }) => ({\n                sticky: true,\n                height\n              }))\n            )\n        } else {\n          return of({\n            sticky: false,\n            height: 0\n          })\n        }\n      }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header title type\n *\n * @param el - Header title element\n *\n * @return Operator function\n */\nexport function applyHeaderType(\n  el: HTMLElement\n): MonoTypeOperatorFunction<HeaderType> {\n  return pipe(\n\n    /* Defer repaint to next animation frame */\n    observeOn(animationFrameScheduler),\n    tap(type => {\n      setHeaderTitleActive(el, type === \"page\")\n    }),\n\n    /* Reset on complete or error */\n    finalize(() => {\n      resetHeaderTitleActive(el)\n    })\n  )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header title active\n *\n * @param el - Header title element\n * @param value - Whether the title is shown\n */\nexport function setHeaderTitleActive(\n  el: HTMLElement, value: boolean\n): void {\n  el.setAttribute(\"data-md-state\", value ? \"active\" : \"\")\n}\n\n/**\n * Reset header title active\n *\n * @param el - Header title element\n */\nexport function resetHeaderTitleActive(\n  el: HTMLElement\n): void {\n  el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, fromEvent, iif, merge } from \"rxjs\"\nimport { map, mapTo, shareReplay, switchMap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @return Test result\n */\nfunction isAppleDevice(): boolean {\n  return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n  { document$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements(\"[data-md-scrollfix]\")),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  /* Remove marker attribute, so we'll only add the fix once */\n  els$.subscribe(els => {\n    for (const el of els)\n      el.removeAttribute(\"data-md-scrollfix\")\n  })\n\n  /* Patch overflow scrolling on touch start */\n  iif(isAppleDevice, els$, NEVER)\n    .pipe(\n      switchMap(els => merge(...els.map(el => (\n        fromEvent(el, \"touchstart\", { passive: true })\n          .pipe(\n            mapTo(el)\n          )\n      ))))\n    )\n      .subscribe(el => {\n        const top = el.scrollTop\n\n        /* We're at the top of the container */\n        if (top === 0) {\n          el.scrollTop = 1\n\n        /* We're at the bottom of the container */\n        } else if (top + el.offsetHeight === el.scrollHeight) {\n          el.scrollTop = top - 1\n        }\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable } from \"rxjs\"\nimport { catchError, map, switchMap } from \"rxjs/operators\"\n\nimport { getElementOrThrow, getElements } from \"browser\"\nimport { renderSource } from \"templates\"\nimport { cache, hash } from \"utilities\"\n\nimport { fetchSourceFactsFromGitHub } from \"./github\"\nimport { fetchSourceFactsFromGitLab } from \"./gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Source facts\n */\nexport type SourceFacts = string[]\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch source facts\n *\n * @param url - Source repository URL\n *\n * @return Source facts observable\n */\nfunction fetchSourceFacts(\n  url: string\n): Observable<SourceFacts> {\n  const [type] = url.match(/(git(?:hub|lab))/i) || []\n  switch (type.toLowerCase()) {\n\n    /* GitHub repository */\n    case \"github\":\n      const [, user, repo] = url.match(/^.+github\\.com\\/([^\\/]+)\\/?([^\\/]+)?/i)\n      return fetchSourceFactsFromGitHub(user, repo)\n\n    /* GitLab repository */\n    case \"gitlab\":\n      const [, base, slug] = url.match(/^.+?([^\\/]*gitlab[^\\/]+)\\/(.+?)\\/?$/i)\n      return fetchSourceFactsFromGitLab(base, slug)\n\n    /* Everything else */\n    default:\n      return NEVER\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch elements containing repository information\n *\n * This function will retrieve the URL from the repository link and try to\n * query data from integrated source code platforms like GitHub or GitLab.\n *\n * @param options - Options\n */\nexport function patchSource(\n  { document$ }: PatchOptions\n): void {\n  document$\n    .pipe(\n      map(() => getElementOrThrow<HTMLAnchorElement>(\".md-source[href]\")),\n      switchMap(({ href }) => (\n        cache(`${hash(href)}`, () => fetchSourceFacts(href))\n      )),\n      catchError(() => NEVER)\n    )\n      .subscribe(facts => {\n        for (const el of getElements(\".md-source__repository\")) {\n          if (!el.hasAttribute(\"data-md-state\")) {\n            el.setAttribute(\"data-md-state\", \"done\")\n            el.appendChild(renderSource(facts))\n          }\n        }\n      })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport { Observable } from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport { filter, map, pluck } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub source facts\n *\n * @param user - GitHub user\n * @param repo - GitHub repository\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n  user: string, repo?: string\n): Observable<SourceFacts> {\n  return ajax({\n    url: typeof repo !== \"undefined\"\n      ? `https://api.github.com/repos/${user}/${repo}`\n      : `https://api.github.com/users/${user}`,\n    responseType: \"json\"\n  })\n    .pipe(\n      filter(({ status }) => status === 200),\n      pluck(\"response\"),\n      map(data => {\n\n        /* GitHub repository */\n        if (typeof repo !== \"undefined\") {\n          const { stargazers_count, forks_count }: Repo = data\n          return [\n            `${round(stargazers_count || 0)} Stars`,\n            `${round(forks_count || 0)} Forks`\n          ]\n\n        /* GitHub user/organization */\n        } else {\n          const { public_repos }: User = data\n          return [\n            `${round(public_repos || 0)} Repositories`\n          ]\n        }\n      })\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport { Observable } from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport { filter, map, pluck } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab source facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n  base: string, project: string\n): Observable<SourceFacts> {\n  return ajax({\n    url: `https://${base}/api/v4/projects/${encodeURIComponent(project)}`,\n    responseType: \"json\"\n  })\n    .pipe(\n      filter(({ status }) => status === 200),\n      pluck(\"response\"),\n      map(({ star_count, forks_count }: ProjectSchema) => ([\n        `${round(star_count)} Stars`,\n        `${round(forks_count)} Forks`\n      ]))\n    )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// DISCLAIMER: this file is still WIP. There're some refactoring opportunities\n// which must be tackled after we gathered some feedback on v5.\n// tslint:disable\n\nimport \"focus-visible\"\n\nimport { sortBy, prop, values } from \"ramda\"\nimport {\n  merge,\n  combineLatest,\n  animationFrameScheduler,\n  fromEvent,\n  from,\n  defer,\n  of,\n  NEVER\n} from \"rxjs\"\nimport { ajax } from \"rxjs/ajax\"\nimport {\n  delay,\n  switchMap,\n  tap,\n  filter,\n  withLatestFrom,\n  observeOn,\n  take,\n  shareReplay,\n  pluck,\n  catchError,\n  map\n} from \"rxjs/operators\"\n\nimport {\n  watchToggle,\n  setToggle,\n  getElements,\n  watchMedia,\n  watchDocument,\n  watchLocation,\n  watchLocationHash,\n  watchViewport,\n  isLocalLocation,\n  setLocationHash,\n  watchLocationBase\n} from \"browser\"\nimport {\n  mountHeader,\n  mountHero,\n  mountMain,\n  mountNavigation,\n  mountSearch,\n  mountTableOfContents,\n  mountTabs,\n  useComponent,\n  setupComponents,\n  mountSearchQuery,\n  mountSearchReset,\n  mountSearchResult\n} from \"components\"\nimport {\n  setupClipboard,\n  setupDialog,\n  setupKeyboard,\n  setupInstantLoading,\n  setupSearchWorker,\n  SearchIndex\n} from \"integrations\"\nimport {\n  patchCodeBlocks,\n  patchTables,\n  patchDetails,\n  patchScrollfix,\n  patchSource,\n  patchScripts\n} from \"patches\"\nimport { isConfig } from \"utilities\"\n\n/* ------------------------------------------------------------------------- */\n\n/* Denote that JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Test for iOS */\nif (navigator.userAgent.match(/(iPad|iPhone|iPod)/g))\n  document.documentElement.classList.add(\"ios\")\n\n/**\n * Set scroll lock\n *\n * @param el - Scrollable element\n * @param value - Vertical offset\n */\nexport function setScrollLock(\n  el: HTMLElement, value: number\n): void {\n  el.setAttribute(\"data-md-state\", \"lock\")\n  el.style.top = `-${value}px`\n}\n\n/**\n * Reset scroll lock\n *\n * @param el - Scrollable element\n */\nexport function resetScrollLock(\n  el: HTMLElement\n): void {\n  const value = -1 * parseInt(el.style.top, 10)\n  el.removeAttribute(\"data-md-state\")\n  el.style.top = \"\"\n  if (value)\n    window.scrollTo(0, value)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Initialize Material for MkDocs\n *\n * @param config - Configuration\n */\nexport function initialize(config: unknown) {\n  if (!isConfig(config))\n    throw new SyntaxError(`Invalid configuration: ${JSON.stringify(config)}`)\n\n  /* Set up subjects */\n  const document$ = watchDocument()\n  const location$ = watchLocation()\n\n  /* Set up user interface observables */\n  const base$     = watchLocationBase(config.base, { location$ })\n  const hash$     = watchLocationHash()\n  const viewport$ = watchViewport()\n  const tablet$   = watchMedia(\"(min-width: 960px)\")\n  const screen$   = watchMedia(\"(min-width: 1220px)\")\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Set up component bindings */\n  setupComponents([\n    \"announce\",                        /* Announcement bar */\n    \"container\",                       /* Container */\n    \"header\",                          /* Header */\n    \"header-title\",                    /* Header title */\n    \"hero\",                            /* Hero */\n    \"main\",                            /* Main area */\n    \"navigation\",                      /* Navigation */\n    \"search\",                          /* Search */\n    \"search-query\",                    /* Search input */\n    \"search-reset\",                    /* Search reset */\n    \"search-result\",                   /* Search results */\n    \"skip\",                            /* Skip link */\n    \"tabs\",                            /* Tabs */\n    \"toc\"                              /* Table of contents */\n  ], { document$ })\n\n  const keyboard$ = setupKeyboard()\n\n  // Hack: only make code blocks focusable on non-touch devices\n  if (matchMedia(\"(hover)\").matches)\n    patchCodeBlocks({ document$, viewport$ })\n  patchDetails({ document$, hash$ })\n  patchScripts({ document$ })\n  patchSource({ document$ })\n  patchTables({ document$ })\n\n  /* Force 1px scroll offset to trigger overflow scrolling */\n  patchScrollfix({ document$ })\n\n  /* Set up clipboard and dialog */\n  const dialog$ = setupDialog()\n  const clipboard$ = setupClipboard({ document$, dialog$ })\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Create header observable */\n  const header$ = useComponent(\"header\")\n    .pipe(\n      mountHeader({ document$, viewport$ }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  const main$ = useComponent(\"main\")\n    .pipe(\n      mountMain({ header$, viewport$ }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  const navigation$ = useComponent(\"navigation\")\n    .pipe(\n      mountNavigation({ header$, main$, viewport$, screen$ }),\n      shareReplay({ bufferSize: 1, refCount: true }) // shareReplay because there might be late subscribers\n    )\n\n  const toc$ = useComponent(\"toc\")\n    .pipe(\n      mountTableOfContents({ header$, main$, viewport$, tablet$ }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  const tabs$ = useComponent(\"tabs\")\n    .pipe(\n      mountTabs({ header$, viewport$, screen$ }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  const hero$ = useComponent(\"hero\")\n    .pipe(\n      mountHero({ header$, viewport$ }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Search worker - only if search is present */\n  const worker$ = useComponent(\"search\")\n    .pipe(\n      switchMap(() => defer(() => {\n        const index = config.search && config.search.index\n          ? config.search.index\n          : undefined\n\n        /* Fetch index if it wasn't passed explicitly */\n        const index$ = typeof index !== \"undefined\"\n          ? from(index)\n          : base$\n              .pipe(\n                switchMap(base => ajax({\n                  url: `${base}/search/search_index.json`,\n                  responseType: \"json\",\n                  withCredentials: true\n                })\n                  .pipe<SearchIndex>(\n                    pluck(\"response\")\n                  )\n                )\n              )\n\n        return of(setupSearchWorker(config.search.worker, {\n          base$, index$\n        }))\n      }))\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Mount search query */\n  const search$ = worker$\n    .pipe(\n      switchMap(worker => {\n\n        const query$ = useComponent(\"search-query\")\n          .pipe(\n            mountSearchQuery(worker, { transform: config.search.transform }),\n            shareReplay({ bufferSize: 1, refCount: true })\n          )\n\n        /* Mount search reset */\n        const reset$ = useComponent(\"search-reset\")\n          .pipe(\n            mountSearchReset(),\n            shareReplay({ bufferSize: 1, refCount: true })\n          )\n\n        /* Mount search result */\n        const result$ = useComponent(\"search-result\")\n          .pipe(\n            mountSearchResult(worker, { query$ }),\n            shareReplay({ bufferSize: 1, refCount: true })\n          )\n\n        return useComponent(\"search\")\n          .pipe(\n            mountSearch(worker, { query$, reset$, result$ }),\n          )\n      }),\n      catchError(() => {\n        useComponent(\"search\")\n          .subscribe(el => el.hidden = true) // TODO: Hack\n        return NEVER\n      }),\n      shareReplay({ bufferSize: 1, refCount: true })\n    )\n\n  /* ----------------------------------------------------------------------- */\n\n  // // put into search...\n  hash$\n    .pipe(\n      tap(() => setToggle(\"search\", false)),\n      delay(125), // ensure that it runs after the body scroll reset...\n    )\n      .subscribe(hash => setLocationHash(`#${hash}`))\n\n  // TODO: scroll restoration must be centralized\n  combineLatest([\n    watchToggle(\"search\"),\n    tablet$,\n  ])\n    .pipe(\n      withLatestFrom(viewport$),\n      switchMap(([[toggle, tablet], { offset: { y }}]) => {\n        const active = toggle && !tablet\n        return document$\n          .pipe(\n            delay(active ? 400 : 100),\n            observeOn(animationFrameScheduler),\n            tap(({ body }) => active\n              ? setScrollLock(body, y)\n              : resetScrollLock(body)\n            )\n          )\n      })\n    )\n      .subscribe()\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Always close drawer on click */\n  fromEvent<MouseEvent>(document.body, \"click\")\n    .pipe(\n      filter(ev => !(ev.metaKey || ev.ctrlKey)),\n      filter(ev => {\n        if (ev.target instanceof HTMLElement) {\n          const el = ev.target.closest(\"a\") // TODO: abstract as link click?\n          if (el && isLocalLocation(el)) {\n            return true\n          }\n        }\n        return false\n      })\n    )\n      .subscribe(() => {\n        setToggle(\"drawer\", false)\n      })\n\n  /* Enable instant loading, if not on file:// protocol */\n  if (config.features.includes(\"instant\") && location.protocol !== \"file:\") {\n\n    /* Fetch sitemap and extract URL whitelist */\n    base$\n      .pipe(\n        switchMap(base => ajax({\n          url: `${base}/sitemap.xml`,\n          responseType: \"document\",\n          withCredentials: true\n        })\n          .pipe<Document>(\n            pluck(\"response\")\n          )\n        ),\n        withLatestFrom(base$),\n        map(([document, base]) => {\n          const urls = getElements(\"loc\", document)\n            .map(node => node.textContent!)\n\n          // Hack: This is a temporary fix to normalize instant loading lookup\n          // on localhost and Netlify previews. If this approach proves to be\n          // suitable, we'll refactor URL whitelisting anyway. We take the two\n          // shortest URLs and determine the common prefix to isolate the\n          // domain. If there're no two domains, we just leave it as-is, as\n          // there isn't anything to be loaded anway.\n          if (urls.length > 1) {\n            const [a, b] = sortBy(prop(\"length\"), urls)\n\n            /* Determine common prefix */\n            let index = 0\n            if (a === b)\n              index = a.length\n            else\n              while (a.charAt(index) === b.charAt(index))\n                index++\n\n            /* Replace common prefix (i.e. base) with effective base */\n            for (let i = 0; i < urls.length; i++)\n              urls[i] = urls[i].replace(a.slice(0, index), `${base}/`)\n          }\n          return urls\n        })\n      )\n        .subscribe(urls => {\n          setupInstantLoading(urls, { document$, location$, viewport$ })\n        })\n  }\n\n  /* ----------------------------------------------------------------------- */\n\n  /* Unhide permalinks on first tab */\n  keyboard$\n    .pipe(\n      filter(key => key.mode === \"global\" && key.type === \"Tab\"),\n      take(1)\n    )\n      .subscribe(() => {\n        for (const link of getElements(\".headerlink\"))\n          link.style.visibility = \"visible\"\n      })\n\n  /* ----------------------------------------------------------------------- */\n\n  const state = {\n\n    /* Browser observables */\n    document$,\n    location$,\n    viewport$,\n\n    /* Component observables */\n    header$,\n    hero$,\n    main$,\n    navigation$,\n    search$,\n    tabs$,\n    toc$,\n\n    /* Integration observables */\n    clipboard$,\n    keyboard$,\n    dialog$\n  }\n\n  /* Subscribe to all observables */\n  merge(...values(state))\n    .subscribe()\n  return state\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport { distinctUntilKeyChanged, map } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n  viewport$: Observable<Viewport>      /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `code` elements\n *\n * This function will make overflowing code blocks focusable via keyboard, so\n * they can be scrolled without a mouse.\n *\n * @param options - Options\n */\nexport function patchCodeBlocks(\n  { document$, viewport$ }: MountOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements<HTMLTableElement>(\"pre > code\"))\n    )\n\n  /* Observe viewport size only */\n  const size$ = viewport$\n    .pipe(\n      distinctUntilKeyChanged(\"size\")\n    )\n\n  /* Make overflowing elements focusable */\n  combineLatest([els$, size$])\n    .subscribe(([els]) => {\n      for (const el of els) {\n        if (el.scrollWidth > el.clientWidth)\n          el.setAttribute(\"tabindex\", \"0\")\n        else\n          el.removeAttribute(\"tabindex\")\n      }\n    })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { identity } from \"ramda\"\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport {\n  filter,\n  map,\n  switchMapTo,\n  tap\n} from \"rxjs/operators\"\n\nimport {\n  getElement,\n  getElements,\n  watchMedia\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n  hash$: Observable<string>            /* Location hash observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `details` elements\n *\n * This function will ensure that all `details` tags are opened prior to\n * printing, so the whole content of the page is included, and on anchor jumps.\n *\n * @param options - Options\n */\nexport function patchDetails(\n  { document$, hash$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      map(() => getElements<HTMLDetailsElement>(\"details\"))\n    )\n\n  /* Open all details before printing */\n  merge(\n    watchMedia(\"print\").pipe(filter(identity)), /* Webkit */\n    fromEvent(window, \"beforeprint\")            /* IE, FF */\n  )\n    .pipe(\n      switchMapTo(els$)\n    )\n      .subscribe(els => {\n        for (const el of els)\n          el.setAttribute(\"open\", \"\")\n      })\n\n  /* Open parent details and fix anchor jump */\n  hash$\n    .pipe(\n      map(id => getElement(`[id=\"${id}\"]`)!),\n      filter(el => typeof el !== \"undefined\"),\n      tap(el => {\n        const details = el.closest(\"details\")\n        if (details && !details.open)\n          details.setAttribute(\"open\", \"\")\n      })\n    )\n      .subscribe(el => el.scrollIntoView())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, noop, of } from \"rxjs\"\nimport {\n  concatMap,\n  map,\n  skip,\n  switchMap,\n  withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n  createElement,\n  getElements,\n  replaceElement\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `script` elements\n *\n * This function must be run after a document switch, which means the first\n * emission must be ignored.\n *\n * @param options - Options\n */\nexport function patchScripts(\n  { document$ }: PatchOptions\n): void {\n  const els$ = document$\n    .pipe(\n      skip(1),\n      withLatestFrom(useComponent(\"container\")),\n      map(([, el]) => getElements<HTMLScriptElement>(\"script\", el))\n    )\n\n  /* Evaluate all scripts via replacement in order */\n  els$\n    .pipe(\n      switchMap(els => of(...els)),\n      concatMap(el => {\n        const script = createElement(\"script\")\n        if (el.src) {\n          script.src = el.src\n          replaceElement(el, script)\n\n          /* Complete when script is loaded */\n          return new Observable(observer => {\n            script.onload = () => observer.complete()\n          })\n\n        /* Complete immediately */\n        } else {\n          script.textContent = el.textContent!\n          replaceElement(el, script)\n          return EMPTY\n        }\n      })\n    )\n      .subscribe(noop)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport {\n  createElement,\n  getElements,\n  replaceElement\n} from \"browser\"\nimport { renderTable } from \"templates\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n  document$: Observable<Document>      /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `table` elements\n *\n * This function will re-render all tables by wrapping them to improve overflow\n * scrolling on smaller screen sizes.\n *\n * @param options - Options\n */\nexport function patchTables(\n  { document$ }: MountOptions\n): void {\n  const sentinel = createElement(\"table\")\n  document$\n    .pipe(\n      map(() => getElements<HTMLTableElement>(\"table:not([class])\"))\n    )\n      .subscribe(els => {\n        for (const el of els) {\n          replaceElement(el, sentinel)\n          replaceElement(sentinel, renderTable(el))\n        }\n      })\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/javascripts/lunr/tinyseg.min.js b/assets/javascripts/lunr/tinyseg.min.js
index 02c61e9ce..302befbb3 100644
--- a/assets/javascripts/lunr/tinyseg.min.js
+++ b/assets/javascripts/lunr/tinyseg.min.js
@@ -1 +1 @@
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+ * Copyright(c) 2015 Andreas Lubbe
+ * Copyright(c) 2015 Tiancheng "Timothy" Gu
+ * MIT Licensed
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*****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n    for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","export function lift(source, operator) {\n    if (hasLift(source)) {\n        return source.lift(operator);\n    }\n    throw new TypeError('Unable to lift unknown Observable type');\n}\nexport function stankyLift(source, liftedSource, operator) {\n    if (hasLift(source)) {\n        return source.lift.call(liftedSource, operator);\n    }\n    throw new TypeError('Unable to lift unknown Observable type');\n}\nfunction hasLift(source) {\n    return source && typeof source.lift === 'function';\n}\n//# sourceMappingURL=lift.js.map","import { __extends } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { empty as emptyObserver } from './Observer';\nimport { Subscription, isSubscription } from './Subscription';\nimport { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nvar Subscriber = (function (_super) {\n    __extends(Subscriber, _super);\n    function Subscriber(destinationOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this.syncErrorValue = null;\n        _this.syncErrorThrown = false;\n        _this.syncErrorThrowable = false;\n        _this.isStopped = false;\n        switch (arguments.length) {\n            case 0:\n                _this.destination = emptyObserver;\n                break;\n            case 1:\n                if (!destinationOrNext) {\n                    _this.destination = emptyObserver;\n                    break;\n                }\n                if (typeof destinationOrNext === 'object') {\n                    if (destinationOrNext instanceof Subscriber) {\n                        _this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n                        _this.destination = destinationOrNext;\n                        destinationOrNext.add(_this);\n                    }\n                    else {\n                        _this.syncErrorThrowable = true;\n                        _this.destination = new SafeSubscriber(_this, destinationOrNext);\n                    }\n                    break;\n                }\n            default:\n                _this.syncErrorThrowable = true;\n                _this.destination = new SafeSubscriber(_this, destinationOrNext, error, complete);\n                break;\n        }\n        return _this;\n    }\n    Subscriber.create = function (next, error, complete) {\n        var subscriber = new Subscriber(next, error, complete);\n        subscriber.syncErrorThrowable = false;\n        return subscriber;\n    };\n    Subscriber.prototype.next = function (value) {\n        if (!this.isStopped) {\n            this._next(value);\n        }\n    };\n    Subscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._error(err);\n        }\n    };\n    Subscriber.prototype.complete = function () {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._complete();\n        }\n    };\n    Subscriber.prototype.unsubscribe = function () {\n        if (this.closed) {\n            return;\n        }\n        this.isStopped = true;\n        _super.prototype.unsubscribe.call(this);\n    };\n    Subscriber.prototype._next = function (value) {\n        this.destination.next(value);\n    };\n    Subscriber.prototype._error = function (err) {\n        this.destination.error(err);\n        this.unsubscribe();\n    };\n    Subscriber.prototype._complete = function () {\n        this.destination.complete();\n        this.unsubscribe();\n    };\n    Subscriber.prototype._unsubscribeAndRecycle = function () {\n        var _parentOrParents = this._parentOrParents;\n        this._parentOrParents = null;\n        this.unsubscribe();\n        this.closed = false;\n        this.isStopped = false;\n        this._parentOrParents = _parentOrParents;\n        return this;\n    };\n    return Subscriber;\n}(Subscription));\nexport { Subscriber };\nvar SafeSubscriber = (function (_super) {\n    __extends(SafeSubscriber, _super);\n    function SafeSubscriber(_parentSubscriber, observerOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this._parentSubscriber = _parentSubscriber;\n        var next;\n        var context = _this;\n        if (isFunction(observerOrNext)) {\n            next = observerOrNext;\n        }\n        else if (observerOrNext) {\n            next = observerOrNext.next;\n            error = observerOrNext.error;\n            complete = observerOrNext.complete;\n            if (observerOrNext !== emptyObserver) {\n                context = Object.create(observerOrNext);\n                if (isSubscription(observerOrNext)) {\n                    observerOrNext.add(_this.unsubscribe.bind(_this));\n                }\n                context.unsubscribe = _this.unsubscribe.bind(_this);\n            }\n        }\n        _this._context = context;\n        _this._next = next;\n        _this._error = error;\n        _this._complete = complete;\n        return _this;\n    }\n    SafeSubscriber.prototype.next = function (value) {\n        if (!this.isStopped && this._next) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                this.__tryOrUnsub(this._next, value);\n            }\n            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            var useDeprecatedSynchronousErrorHandling = config.useDeprecatedSynchronousErrorHandling;\n            if (this._error) {\n                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(this._error, err);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, this._error, err);\n                    this.unsubscribe();\n                }\n            }\n            else if (!_parentSubscriber.syncErrorThrowable) {\n                this.unsubscribe();\n                if (useDeprecatedSynchronousErrorHandling) {\n                    throw err;\n                }\n                hostReportError(err);\n            }\n            else {\n                if (useDeprecatedSynchronousErrorHandling) {\n                    _parentSubscriber.syncErrorValue = err;\n                    _parentSubscriber.syncErrorThrown = true;\n                }\n                else {\n                    hostReportError(err);\n                }\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.complete = function () {\n        var _this = this;\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (this._complete) {\n                var wrappedComplete = function () { return _this._complete.call(_this._context); };\n                if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(wrappedComplete);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n                    this.unsubscribe();\n                }\n            }\n            else {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrUnsub = function (fn, value) {\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            this.unsubscribe();\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                throw err;\n            }\n            else {\n                hostReportError(err);\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrSetError = function (parent, fn, value) {\n        if (!config.useDeprecatedSynchronousErrorHandling) {\n            throw new Error('bad call');\n        }\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                parent.syncErrorValue = err;\n                parent.syncErrorThrown = true;\n                return true;\n            }\n            else {\n                hostReportError(err);\n                return true;\n            }\n        }\n        return false;\n    };\n    SafeSubscriber.prototype._unsubscribe = function () {\n        var _parentSubscriber = this._parentSubscriber;\n        this._context = null;\n        this._parentSubscriber = null;\n        _parentSubscriber.unsubscribe();\n    };\n    return SafeSubscriber;\n}(Subscriber));\nexport { SafeSubscriber };\n//# sourceMappingURL=Subscriber.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { empty as emptyObserver } from '../Observer';\nimport { isSubscription } from '../Subscription';\nexport function toSubscriber(nextOrObserver, error, complete) {\n    if (nextOrObserver) {\n        if (isSubscriber(nextOrObserver)) {\n            return nextOrObserver;\n        }\n        if (isObserver(nextOrObserver)) {\n            return new FullObserverSubscriber(nextOrObserver);\n        }\n    }\n    if (!nextOrObserver && !error && !complete) {\n        return new Subscriber(emptyObserver);\n    }\n    return new Subscriber(nextOrObserver, error, complete);\n}\nfunction isObserver(value) {\n    return value && typeof value.next === 'function' && typeof value.error === 'function' && typeof value.complete === 'function';\n}\nfunction isSubscriber(value) {\n    return value instanceof Subscriber || (isObserver(value) && isSubscription(value));\n}\nvar FullObserverSubscriber = (function (_super) {\n    __extends(FullObserverSubscriber, _super);\n    function FullObserverSubscriber(destination) {\n        var _this = _super.call(this) || this;\n        _this.destination = destination;\n        return _this;\n    }\n    return FullObserverSubscriber;\n}(Subscriber));\n//# sourceMappingURL=toSubscriber.js.map","import { canReportError } from './util/canReportError';\nimport { toSubscriber } from './util/toSubscriber';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nvar Observable = (function () {\n    function Observable(subscribe) {\n        if (subscribe) {\n            this._subscribe = subscribe;\n        }\n    }\n    Observable.prototype.lift = function (operator) {\n        var observable = new Observable();\n        observable.source = this;\n        observable.operator = operator;\n        return observable;\n    };\n    Observable.prototype.subscribe = function (observerOrNext, error, complete) {\n        var operator = this.operator;\n        var sink = toSubscriber(observerOrNext, error, complete);\n        if (operator) {\n            sink.add(operator.call(sink, this.source));\n        }\n        else {\n            sink.add(this.source || (config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable)\n                ? this._subscribe(sink)\n                : this._trySubscribe(sink));\n        }\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            if (sink.syncErrorThrowable) {\n                sink.syncErrorThrowable = false;\n                if (sink.syncErrorThrown) {\n                    throw sink.syncErrorValue;\n                }\n            }\n        }\n        return sink;\n    };\n    Observable.prototype._trySubscribe = function (sink) {\n        try {\n            return this._subscribe(sink);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                sink.syncErrorThrown = true;\n                sink.syncErrorValue = err;\n            }\n            if (canReportError(sink)) {\n                sink.error(err);\n            }\n            else {\n                console.warn(err);\n            }\n        }\n    };\n    Observable.prototype.forEach = function (next, promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var subscription;\n            subscription = _this.subscribe(function (value) {\n                try {\n                    next(value);\n                }\n                catch (err) {\n                    reject(err);\n                    if (subscription) {\n                        subscription.unsubscribe();\n                    }\n                }\n            }, reject, resolve);\n        });\n    };\n    Observable.prototype._subscribe = function (subscriber) {\n        var source = this.source;\n        return source && source.subscribe(subscriber);\n    };\n    Observable.prototype[Symbol_observable] = function () {\n        return this;\n    };\n    Observable.prototype.pipe = function () {\n        var operations = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            operations[_i] = arguments[_i];\n        }\n        if (operations.length === 0) {\n            return this;\n        }\n        return pipeFromArray(operations)(this);\n    };\n    Observable.prototype.toPromise = function (promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var value;\n            _this.subscribe(function (x) { return (value = x); }, function (err) { return reject(err); }, function () { return resolve(value); });\n        });\n    };\n    Observable.create = function (subscribe) {\n        return new Observable(subscribe);\n    };\n    return Observable;\n}());\nexport { Observable };\nfunction getPromiseCtor(promiseCtor) {\n    if (!promiseCtor) {\n        promiseCtor = config.Promise || Promise;\n    }\n    if (!promiseCtor) {\n        throw new Error('no Promise impl found');\n    }\n    return promiseCtor;\n}\n//# sourceMappingURL=Observable.js.map","import { Subscriber } from '../Subscriber';\nexport function canReportError(observer) {\n    while (observer) {\n        var _a = observer, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;\n        if (closed_1 || isStopped) {\n            return false;\n        }\n        else if (destination && destination instanceof Subscriber) {\n            observer = destination;\n        }\n        else {\n            observer = null;\n        }\n    }\n    return true;\n}\n//# sourceMappingURL=canReportError.js.map","var UnsubscriptionErrorImpl = (function () {\n    function UnsubscriptionErrorImpl(errors) {\n        Error.call(this);\n        this.message = errors ?\n            errors.length + \" errors occurred during unsubscription:\\n\" + errors.map(function (err, i) { return i + 1 + \") \" + err.toString(); }).join('\\n  ') : '';\n        this.name = 'UnsubscriptionError';\n        this.errors = errors;\n        return this;\n    }\n    UnsubscriptionErrorImpl.prototype = Object.create(Error.prototype);\n    return UnsubscriptionErrorImpl;\n})();\nexport var UnsubscriptionError = UnsubscriptionErrorImpl;\n//# sourceMappingURL=UnsubscriptionError.js.map","import { isArray } from './util/isArray';\nimport { isObject } from './util/isObject';\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nvar Subscription = (function () {\n    function Subscription(unsubscribe) {\n        this.closed = false;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (unsubscribe) {\n            this._ctorUnsubscribe = true;\n            this._unsubscribe = unsubscribe;\n        }\n    }\n    Subscription.prototype.unsubscribe = function () {\n        var errors;\n        if (this.closed) {\n            return;\n        }\n        var _a = this, _parentOrParents = _a._parentOrParents, _ctorUnsubscribe = _a._ctorUnsubscribe, _unsubscribe = _a._unsubscribe, _subscriptions = _a._subscriptions;\n        this.closed = true;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (_parentOrParents instanceof Subscription) {\n            _parentOrParents.remove(this);\n        }\n        else if (_parentOrParents !== null) {\n            for (var index = 0; index < _parentOrParents.length; ++index) {\n                var parent_1 = _parentOrParents[index];\n                parent_1.remove(this);\n            }\n        }\n        if (isFunction(_unsubscribe)) {\n            if (_ctorUnsubscribe) {\n                this._unsubscribe = undefined;\n            }\n            try {\n                _unsubscribe.call(this);\n            }\n            catch (e) {\n                errors = e instanceof UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n            }\n        }\n        if (isArray(_subscriptions)) {\n            var index = -1;\n            var len = _subscriptions.length;\n            while (++index < len) {\n                var sub = _subscriptions[index];\n                if (isObject(sub)) {\n                    try {\n                        sub.unsubscribe();\n                    }\n                    catch (e) {\n                        errors = errors || [];\n                        if (e instanceof UnsubscriptionError) {\n                            errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n                        }\n                        else {\n                            errors.push(e);\n                        }\n                    }\n                }\n            }\n        }\n        if (errors) {\n            throw new UnsubscriptionError(errors);\n        }\n    };\n    Subscription.prototype.add = function (teardown) {\n        var subscription = teardown;\n        if (!teardown) {\n            return Subscription.EMPTY;\n        }\n        switch (typeof teardown) {\n            case 'function':\n                subscription = new Subscription(teardown);\n            case 'object':\n                if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n                    return subscription;\n                }\n                else if (this.closed) {\n                    subscription.unsubscribe();\n                    return subscription;\n                }\n                else if (!(subscription instanceof Subscription)) {\n                    var tmp = subscription;\n                    subscription = new Subscription();\n                    subscription._subscriptions = [tmp];\n                }\n                break;\n            default: {\n                throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n            }\n        }\n        var _parentOrParents = subscription._parentOrParents;\n        if (_parentOrParents === null) {\n            subscription._parentOrParents = this;\n        }\n        else if (_parentOrParents instanceof Subscription) {\n            if (_parentOrParents === this) {\n                return subscription;\n            }\n            subscription._parentOrParents = [_parentOrParents, this];\n        }\n        else if (_parentOrParents.indexOf(this) === -1) {\n            _parentOrParents.push(this);\n        }\n        else {\n            return subscription;\n        }\n        var subscriptions = this._subscriptions;\n        if (subscriptions === null) {\n            this._subscriptions = [subscription];\n        }\n        else {\n            subscriptions.push(subscription);\n        }\n        return subscription;\n    };\n    Subscription.prototype.remove = function (subscription) {\n        var subscriptions = this._subscriptions;\n        if (subscriptions) {\n            var subscriptionIndex = subscriptions.indexOf(subscription);\n            if (subscriptionIndex !== -1) {\n                subscriptions.splice(subscriptionIndex, 1);\n            }\n        }\n    };\n    Subscription.EMPTY = (function (empty) {\n        empty.closed = true;\n        return empty;\n    }(new Subscription()));\n    return Subscription;\n}());\nexport { Subscription };\nexport function isSubscription(value) {\n    return value instanceof Subscription || (value &&\n        'closed' in value &&\n        typeof value.remove === 'function' &&\n        typeof value.add === 'function' &&\n        typeof value.unsubscribe === 'function');\n}\nfunction flattenUnsubscriptionErrors(errors) {\n    return errors.reduce(function (errs, err) { return errs.concat((err instanceof UnsubscriptionError) ? err.errors : err); }, []);\n}\n//# sourceMappingURL=Subscription.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from './Subscriber';\nimport { Observable } from './Observable';\nimport { subscribeTo } from './util/subscribeTo';\nvar SimpleInnerSubscriber = (function (_super) {\n    __extends(SimpleInnerSubscriber, _super);\n    function SimpleInnerSubscriber(parent) {\n        var _this = _super.call(this) || this;\n        _this.parent = parent;\n        return _this;\n    }\n    SimpleInnerSubscriber.prototype._next = function (value) {\n        this.parent.notifyNext(value);\n    };\n    SimpleInnerSubscriber.prototype._error = function (error) {\n        this.parent.notifyError(error);\n        this.unsubscribe();\n    };\n    SimpleInnerSubscriber.prototype._complete = function () {\n        this.parent.notifyComplete();\n        this.unsubscribe();\n    };\n    return SimpleInnerSubscriber;\n}(Subscriber));\nexport { SimpleInnerSubscriber };\nvar ComplexInnerSubscriber = (function (_super) {\n    __extends(ComplexInnerSubscriber, _super);\n    function ComplexInnerSubscriber(parent, outerValue, outerIndex) {\n        var _this = _super.call(this) || this;\n        _this.parent = parent;\n        _this.outerValue = outerValue;\n        _this.outerIndex = outerIndex;\n        return _this;\n    }\n    ComplexInnerSubscriber.prototype._next = function (value) {\n        this.parent.notifyNext(this.outerValue, value, this.outerIndex, this);\n    };\n    ComplexInnerSubscriber.prototype._error = function (error) {\n        this.parent.notifyError(error);\n        this.unsubscribe();\n    };\n    ComplexInnerSubscriber.prototype._complete = function () {\n        this.parent.notifyComplete(this);\n        this.unsubscribe();\n    };\n    return ComplexInnerSubscriber;\n}(Subscriber));\nexport { ComplexInnerSubscriber };\nvar SimpleOuterSubscriber = (function (_super) {\n    __extends(SimpleOuterSubscriber, _super);\n    function SimpleOuterSubscriber() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    SimpleOuterSubscriber.prototype.notifyNext = function (innerValue) {\n        this.destination.next(innerValue);\n    };\n    SimpleOuterSubscriber.prototype.notifyError = function (err) {\n        this.destination.error(err);\n    };\n    SimpleOuterSubscriber.prototype.notifyComplete = function () {\n        this.destination.complete();\n    };\n    return SimpleOuterSubscriber;\n}(Subscriber));\nexport { SimpleOuterSubscriber };\nvar ComplexOuterSubscriber = (function (_super) {\n    __extends(ComplexOuterSubscriber, _super);\n    function ComplexOuterSubscriber() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    ComplexOuterSubscriber.prototype.notifyNext = function (_outerValue, innerValue, _outerIndex, _innerSub) {\n        this.destination.next(innerValue);\n    };\n    ComplexOuterSubscriber.prototype.notifyError = function (error) {\n        this.destination.error(error);\n    };\n    ComplexOuterSubscriber.prototype.notifyComplete = function (_innerSub) {\n        this.destination.complete();\n    };\n    return ComplexOuterSubscriber;\n}(Subscriber));\nexport { ComplexOuterSubscriber };\nexport function innerSubscribe(result, innerSubscriber) {\n    if (innerSubscriber.closed) {\n        return undefined;\n    }\n    if (result instanceof Observable) {\n        return result.subscribe(innerSubscriber);\n    }\n    return subscribeTo(result)(innerSubscriber);\n}\n//# sourceMappingURL=innerSubscribe.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function map(project, thisArg) {\n    return function mapOperation(source) {\n        if (typeof project !== 'function') {\n            throw new TypeError('argument is not a function. Are you looking for `mapTo()`?');\n        }\n        return lift(source, new MapOperator(project, thisArg));\n    };\n}\nvar MapOperator = (function () {\n    function MapOperator(project, thisArg) {\n        this.project = project;\n        this.thisArg = thisArg;\n    }\n    MapOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new MapSubscriber(subscriber, this.project, this.thisArg));\n    };\n    return MapOperator;\n}());\nexport { MapOperator };\nvar MapSubscriber = (function (_super) {\n    __extends(MapSubscriber, _super);\n    function MapSubscriber(destination, project, thisArg) {\n        var _this = _super.call(this, destination) || this;\n        _this.project = project;\n        _this.count = 0;\n        _this.thisArg = thisArg || _this;\n        return _this;\n    }\n    MapSubscriber.prototype._next = function (value) {\n        var result;\n        try {\n            result = this.project.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return MapSubscriber;\n}(Subscriber));\n//# sourceMappingURL=map.js.map","var _enable_super_gross_mode_that_will_cause_bad_things = false;\nexport var config = {\n    Promise: undefined,\n    set useDeprecatedSynchronousErrorHandling(value) {\n        if (value) {\n            var error = new Error();\n            console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n        }\n        else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n            console.log('RxJS: Back to a better error behavior. Thank you. <3');\n        }\n        _enable_super_gross_mode_that_will_cause_bad_things = value;\n    },\n    get useDeprecatedSynchronousErrorHandling() {\n        return _enable_super_gross_mode_that_will_cause_bad_things;\n    },\n};\n//# sourceMappingURL=config.js.map","import _isPlaceholder from \"./_isPlaceholder.js\";\n/**\n * Optimized internal one-arity curry function.\n *\n * @private\n * @category Function\n * @param {Function} fn The function to curry.\n * @return {Function} The curried function.\n */\n\nexport default function _curry1(fn) {\n  return function f1(a) {\n    if (arguments.length === 0 || _isPlaceholder(a)) {\n      return f1;\n    } else {\n      return fn.apply(this, arguments);\n    }\n  };\n}","export function noop() { }\n//# sourceMappingURL=noop.js.map","export function isFunction(x) {\n    return typeof x === 'function';\n}\n//# sourceMappingURL=isFunction.js.map","export var observable = (function () { return typeof Symbol === 'function' && Symbol.observable || '@@observable'; })();\n//# sourceMappingURL=observable.js.map","import _curry1 from \"./_curry1.js\";\nimport _isPlaceholder from \"./_isPlaceholder.js\";\n/**\n * Optimized internal two-arity curry function.\n *\n * @private\n * @category Function\n * @param {Function} fn The function to curry.\n * @return {Function} The curried function.\n */\n\nexport default function _curry2(fn) {\n  return function f2(a, b) {\n    switch (arguments.length) {\n      case 0:\n        return f2;\n\n      case 1:\n        return _isPlaceholder(a) ? f2 : _curry1(function (_b) {\n          return fn(a, _b);\n        });\n\n      default:\n        return _isPlaceholder(a) && _isPlaceholder(b) ? f2 : _isPlaceholder(a) ? _curry1(function (_a) {\n          return fn(_a, b);\n        }) : _isPlaceholder(b) ? _curry1(function (_b) {\n          return fn(a, _b);\n        }) : fn(a, b);\n    }\n  };\n}","var ObjectUnsubscribedErrorImpl = (function () {\n    function ObjectUnsubscribedErrorImpl() {\n        Error.call(this);\n        this.message = 'object unsubscribed';\n        this.name = 'ObjectUnsubscribedError';\n        return this;\n    }\n    ObjectUnsubscribedErrorImpl.prototype = Object.create(Error.prototype);\n    return ObjectUnsubscribedErrorImpl;\n})();\nexport var ObjectUnsubscribedError = ObjectUnsubscribedErrorImpl;\n//# sourceMappingURL=ObjectUnsubscribedError.js.map","export function hostReportError(err) {\n    setTimeout(function () { throw err; }, 0);\n}\n//# sourceMappingURL=hostReportError.js.map","import { __extends } from \"tslib\";\nimport { map } from './map';\nimport { from } from '../observable/from';\nimport { lift } from '../util/lift';\nimport { SimpleInnerSubscriber, innerSubscribe, SimpleOuterSubscriber } from '../innerSubscribe';\nexport function switchMap(project, resultSelector) {\n    if (typeof resultSelector === 'function') {\n        return function (source) { return source.pipe(switchMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); })); };\n    }\n    return function (source) { return lift(source, new SwitchMapOperator(project)); };\n}\nvar SwitchMapOperator = (function () {\n    function SwitchMapOperator(project) {\n        this.project = project;\n    }\n    SwitchMapOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));\n    };\n    return SwitchMapOperator;\n}());\nvar SwitchMapSubscriber = (function (_super) {\n    __extends(SwitchMapSubscriber, _super);\n    function SwitchMapSubscriber(destination, project) {\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        _this.project = project;\n        _this.index = 0;\n        return _this;\n    }\n    SwitchMapSubscriber.prototype._next = function (value) {\n        var result;\n        var index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (error) {\n            this.destination.error(error);\n            return;\n        }\n        var innerSubscription = this.innerSubscription;\n        if (innerSubscription) {\n            innerSubscription.unsubscribe();\n        }\n        var innerSubscriber = new SimpleInnerSubscriber(this);\n        this.destination.add(innerSubscriber);\n        this.innerSubscription = innerSubscribe(result, innerSubscriber);\n    };\n    SwitchMapSubscriber.prototype._complete = function () {\n        var innerSubscription = this.innerSubscription;\n        if (!innerSubscription || innerSubscription.closed) {\n            _super.prototype._complete.call(this);\n        }\n        this.unsubscribe();\n    };\n    SwitchMapSubscriber.prototype._unsubscribe = function () {\n        this.innerSubscription = undefined;\n    };\n    SwitchMapSubscriber.prototype.notifyComplete = function () {\n        this.innerSubscription = undefined;\n        if (this.isStopped) {\n            _super.prototype._complete.call(this);\n        }\n    };\n    SwitchMapSubscriber.prototype.notifyNext = function (innerValue) {\n        this.destination.next(innerValue);\n    };\n    return SwitchMapSubscriber;\n}(SimpleOuterSubscriber));\n//# sourceMappingURL=switchMap.js.map","export var isArray = (function () { return Array.isArray || (function (x) { return x && typeof x.length === 'number'; }); })();\n//# sourceMappingURL=isArray.js.map","export function isScheduler(value) {\n    return value && typeof value.schedule === 'function';\n}\n//# sourceMappingURL=isScheduler.js.map","export function getSymbolIterator() {\n    if (typeof Symbol !== 'function' || !Symbol.iterator) {\n        return '@@iterator';\n    }\n    return Symbol.iterator;\n}\nexport var iterator = getSymbolIterator();\nexport var $$iterator = iterator;\n//# sourceMappingURL=iterator.js.map","import { Observable } from '../Observable';\nexport var EMPTY = new Observable(function (subscriber) { return subscriber.complete(); });\nexport function empty(scheduler) {\n    return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n    return new Observable(function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });\n}\n//# sourceMappingURL=empty.js.map","export default function _isPlaceholder(a) {\n  return a != null && typeof a === 'object' && a['@@functional/placeholder'] === true;\n}","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of() {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    var scheduler = args[args.length - 1];\n    if (isScheduler(scheduler)) {\n        args.pop();\n        return scheduleArray(args, scheduler);\n    }\n    else {\n        return fromArray(args);\n    }\n}\n//# sourceMappingURL=of.js.map","export function isObject(x) {\n    return x !== null && typeof x === 'object';\n}\n//# sourceMappingURL=isObject.js.map","import { __extends } from \"tslib\";\nimport { Observable } from './Observable';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nvar Subject = (function (_super) {\n    __extends(Subject, _super);\n    function Subject() {\n        var _this = _super.call(this) || this;\n        _this.observers = [];\n        _this.closed = false;\n        _this.isStopped = false;\n        _this.hasError = false;\n        _this.thrownError = null;\n        return _this;\n    }\n    Subject.prototype.lift = function (operator) {\n        var subject = new AnonymousSubject(this, this);\n        subject.operator = operator;\n        return subject;\n    };\n    Subject.prototype.next = function (value) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        if (!this.isStopped) {\n            var observers = this.observers;\n            var len = observers.length;\n            var copy = observers.slice();\n            for (var i = 0; i < len; i++) {\n                copy[i].next(value);\n            }\n        }\n    };\n    Subject.prototype.error = function (err) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.hasError = true;\n        this.thrownError = err;\n        this.isStopped = true;\n        var observers = this.observers;\n        var len = observers.length;\n        var copy = observers.slice();\n        for (var i = 0; i < len; i++) {\n            copy[i].error(err);\n        }\n        this.observers.length = 0;\n    };\n    Subject.prototype.complete = function () {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.isStopped = true;\n        var observers = this.observers;\n        var len = observers.length;\n        var copy = observers.slice();\n        for (var i = 0; i < len; i++) {\n            copy[i].complete();\n        }\n        this.observers.length = 0;\n    };\n    Subject.prototype.unsubscribe = function () {\n        this.isStopped = true;\n        this.closed = true;\n        this.observers = null;\n    };\n    Subject.prototype._trySubscribe = function (subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return _super.prototype._trySubscribe.call(this, subscriber);\n        }\n    };\n    Subject.prototype._subscribe = function (subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.hasError) {\n            subscriber.error(this.thrownError);\n            return Subscription.EMPTY;\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n            return Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            return new SubjectSubscription(this, subscriber);\n        }\n    };\n    Subject.prototype.asObservable = function () {\n        var observable = new Observable();\n        observable.source = this;\n        return observable;\n    };\n    Subject.create = function (destination, source) {\n        return new AnonymousSubject(destination, source);\n    };\n    return Subject;\n}(Observable));\nexport { Subject };\nvar AnonymousSubject = (function (_super) {\n    __extends(AnonymousSubject, _super);\n    function AnonymousSubject(destination, source) {\n        var _this = _super.call(this) || this;\n        _this.destination = destination;\n        _this.source = source;\n        return _this;\n    }\n    AnonymousSubject.prototype.next = function (value) {\n        var destination = this.destination;\n        if (destination && destination.next) {\n            destination.next(value);\n        }\n    };\n    AnonymousSubject.prototype.error = function (err) {\n        var destination = this.destination;\n        if (destination && destination.error) {\n            this.destination.error(err);\n        }\n    };\n    AnonymousSubject.prototype.complete = function () {\n        var destination = this.destination;\n        if (destination && destination.complete) {\n            this.destination.complete();\n        }\n    };\n    AnonymousSubject.prototype._subscribe = function (subscriber) {\n        var source = this.source;\n        if (source) {\n            return this.source.subscribe(subscriber);\n        }\n        else {\n            return Subscription.EMPTY;\n        }\n    };\n    return AnonymousSubject;\n}(Subject));\nexport { AnonymousSubject };\n//# sourceMappingURL=Subject.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        var i = 0;\n        sub.add(scheduler.schedule(function () {\n            if (i === input.length) {\n                subscriber.complete();\n                return;\n            }\n            subscriber.next(input[i++]);\n            if (!subscriber.closed) {\n                sub.add(this.schedule());\n            }\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleArray.js.map","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n    if (!scheduler) {\n        return new Observable(subscribeToArray(input));\n    }\n    else {\n        return scheduleArray(input, scheduler);\n    }\n}\n//# sourceMappingURL=fromArray.js.map","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nimport { scheduleAsyncIterable } from './scheduleAsyncIterable';\nexport function scheduled(input, scheduler) {\n    if (input != null) {\n        if (isInteropObservable(input)) {\n            return scheduleObservable(input, scheduler);\n        }\n        else if (isPromise(input)) {\n            return schedulePromise(input, scheduler);\n        }\n        else if (isArrayLike(input)) {\n            return scheduleArray(input, scheduler);\n        }\n        else if (isIterable(input) || typeof input === 'string') {\n            return scheduleIterable(input, scheduler);\n        }\n        else if (Symbol && Symbol.asyncIterator && typeof input[Symbol.asyncIterator] === 'function') {\n            return scheduleAsyncIterable(input, scheduler);\n        }\n    }\n    throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n//# sourceMappingURL=scheduled.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n    return input && typeof input[Symbol_observable] === 'function';\n}\n//# sourceMappingURL=isInteropObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () {\n            var observable = input[Symbol_observable]();\n            sub.add(observable.subscribe({\n                next: function (value) { sub.add(scheduler.schedule(function () { return subscriber.next(value); })); },\n                error: function (err) { sub.add(scheduler.schedule(function () { return subscriber.error(err); })); },\n                complete: function () { sub.add(scheduler.schedule(function () { return subscriber.complete(); })); },\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () { return input.then(function (value) {\n            sub.add(scheduler.schedule(function () {\n                subscriber.next(value);\n                sub.add(scheduler.schedule(function () { return subscriber.complete(); }));\n            }));\n        }, function (err) {\n            sub.add(scheduler.schedule(function () { return subscriber.error(err); }));\n        }); }));\n        return sub;\n    });\n}\n//# sourceMappingURL=schedulePromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n    return input && typeof input[Symbol_iterator] === 'function';\n}\n//# sourceMappingURL=isIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        var iterator;\n        sub.add(function () {\n            if (iterator && typeof iterator.return === 'function') {\n                iterator.return();\n            }\n        });\n        sub.add(scheduler.schedule(function () {\n            iterator = input[Symbol_iterator]();\n            sub.add(scheduler.schedule(function () {\n                if (subscriber.closed) {\n                    return;\n                }\n                var value;\n                var done;\n                try {\n                    var result = iterator.next();\n                    value = result.value;\n                    done = result.done;\n                }\n                catch (err) {\n                    subscriber.error(err);\n                    return;\n                }\n                if (done) {\n                    subscriber.complete();\n                }\n                else {\n                    subscriber.next(value);\n                    this.schedule();\n                }\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleAsyncIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () {\n            var iterator = input[Symbol.asyncIterator]();\n            sub.add(scheduler.schedule(function () {\n                var _this = this;\n                iterator.next().then(function (result) {\n                    if (result.done) {\n                        subscriber.complete();\n                    }\n                    else {\n                        subscriber.next(result.value);\n                        _this.schedule();\n                    }\n                });\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleAsyncIterable.js.map","import { Observable } from '../Observable';\nimport { subscribeTo } from '../util/subscribeTo';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n    if (!scheduler) {\n        if (input instanceof Observable) {\n            return input;\n        }\n        return new Observable(subscribeTo(input));\n    }\n    else {\n        return scheduled(input, scheduler);\n    }\n}\n//# sourceMappingURL=from.js.map","import { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport var empty = {\n    closed: true,\n    next: function (value) { },\n    error: function (err) {\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            throw err;\n        }\n        else {\n            hostReportError(err);\n        }\n    },\n    complete: function () { }\n};\n//# sourceMappingURL=Observer.js.map","import { identity } from './identity';\nexport function pipe() {\n    var fns = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        fns[_i] = arguments[_i];\n    }\n    return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n    if (fns.length === 0) {\n        return identity;\n    }\n    if (fns.length === 1) {\n        return fns[0];\n    }\n    return function piped(input) {\n        return fns.reduce(function (prev, fn) { return fn(prev); }, input);\n    };\n}\n//# sourceMappingURL=pipe.js.map","export var dateTimestampProvider = {\n    now: function () {\n        return (dateTimestampProvider.delegate || Date).now();\n    },\n    delegate: undefined,\n};\n//# sourceMappingURL=dateTimestampProvider.js.map","import { __extends } from \"tslib\";\nimport { map } from './map';\nimport { from } from '../observable/from';\nimport { lift } from '../util/lift';\nimport { innerSubscribe, SimpleOuterSubscriber, SimpleInnerSubscriber } from '../innerSubscribe';\nexport function mergeMap(project, resultSelector, concurrent) {\n    if (concurrent === void 0) { concurrent = Infinity; }\n    if (typeof resultSelector === 'function') {\n        return function (source) { return source.pipe(mergeMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent)); };\n    }\n    else if (typeof resultSelector === 'number') {\n        concurrent = resultSelector;\n    }\n    return function (source) { return lift(source, new MergeMapOperator(project, concurrent)); };\n}\nvar MergeMapOperator = (function () {\n    function MergeMapOperator(project, concurrent) {\n        if (concurrent === void 0) { concurrent = Infinity; }\n        this.project = project;\n        this.concurrent = concurrent;\n    }\n    MergeMapOperator.prototype.call = function (observer, source) {\n        return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));\n    };\n    return MergeMapOperator;\n}());\nexport { MergeMapOperator };\nvar MergeMapSubscriber = (function (_super) {\n    __extends(MergeMapSubscriber, _super);\n    function MergeMapSubscriber(destination, project, concurrent) {\n        if (concurrent === void 0) { concurrent = Infinity; }\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        _this.project = project;\n        _this.concurrent = concurrent;\n        _this.hasCompleted = false;\n        _this.buffer = [];\n        _this.active = 0;\n        _this.index = 0;\n        return _this;\n    }\n    MergeMapSubscriber.prototype._next = function (value) {\n        if (this.active < this.concurrent) {\n            var result = void 0;\n            var index = this.index++;\n            try {\n                result = this.project(value, index);\n            }\n            catch (err) {\n                this.destination.error(err);\n                return;\n            }\n            this.active++;\n            var innerSubscriber = new SimpleInnerSubscriber(this);\n            var destination = this.destination;\n            destination.add(innerSubscriber);\n            innerSubscribe(result, innerSubscriber);\n        }\n        else {\n            this.buffer.push(value);\n        }\n    };\n    MergeMapSubscriber.prototype._complete = function () {\n        this.hasCompleted = true;\n        if (this.active === 0 && this.buffer.length === 0) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    };\n    MergeMapSubscriber.prototype.notifyNext = function (innerValue) {\n        this.destination.next(innerValue);\n    };\n    MergeMapSubscriber.prototype.notifyComplete = function () {\n        var buffer = this.buffer;\n        this.active--;\n        if (buffer.length > 0) {\n            this._next(buffer.shift());\n        }\n        else if (this.active === 0 && this.hasCompleted) {\n            this.destination.complete();\n        }\n    };\n    return MergeMapSubscriber;\n}(SimpleOuterSubscriber));\nexport { MergeMapSubscriber };\nexport var flatMap = mergeMap;\n//# sourceMappingURL=mergeMap.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function distinctUntilChanged(compare, keySelector) {\n    return function (source) { return lift(source, new DistinctUntilChangedOperator(compare, keySelector)); };\n}\nvar DistinctUntilChangedOperator = (function () {\n    function DistinctUntilChangedOperator(compare, keySelector) {\n        this.compare = compare;\n        this.keySelector = keySelector;\n    }\n    DistinctUntilChangedOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DistinctUntilChangedSubscriber(subscriber, this.compare, this.keySelector));\n    };\n    return DistinctUntilChangedOperator;\n}());\nvar DistinctUntilChangedSubscriber = (function (_super) {\n    __extends(DistinctUntilChangedSubscriber, _super);\n    function DistinctUntilChangedSubscriber(destination, compare, keySelector) {\n        var _this = _super.call(this, destination) || this;\n        _this.keySelector = keySelector;\n        _this.hasKey = false;\n        if (typeof compare === 'function') {\n            _this.compare = compare;\n        }\n        return _this;\n    }\n    DistinctUntilChangedSubscriber.prototype.compare = function (x, y) {\n        return x === y;\n    };\n    DistinctUntilChangedSubscriber.prototype._next = function (value) {\n        var key;\n        try {\n            var keySelector = this.keySelector;\n            key = keySelector ? keySelector(value) : value;\n        }\n        catch (err) {\n            return this.destination.error(err);\n        }\n        var result = false;\n        if (this.hasKey) {\n            try {\n                var compare = this.compare;\n                result = compare(this.key, key);\n            }\n            catch (err) {\n                return this.destination.error(err);\n            }\n        }\n        else {\n            this.hasKey = true;\n        }\n        if (!result) {\n            this.key = key;\n            this.destination.next(value);\n        }\n    };\n    return DistinctUntilChangedSubscriber;\n}(Subscriber));\n//# sourceMappingURL=distinctUntilChanged.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from './Subscription';\nvar SubjectSubscription = (function (_super) {\n    __extends(SubjectSubscription, _super);\n    function SubjectSubscription(subject, subscriber) {\n        var _this = _super.call(this) || this;\n        _this.subject = subject;\n        _this.subscriber = subscriber;\n        _this.closed = false;\n        return _this;\n    }\n    SubjectSubscription.prototype.unsubscribe = function () {\n        if (this.closed) {\n            return;\n        }\n        this.closed = true;\n        var subject = this.subject;\n        var observers = subject.observers;\n        this.subject = null;\n        if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {\n            return;\n        }\n        var subscriberIndex = observers.indexOf(this.subscriber);\n        if (subscriberIndex !== -1) {\n            observers.splice(subscriberIndex, 1);\n        }\n    };\n    return SubjectSubscription;\n}(Subscription));\nexport { SubjectSubscription };\n//# sourceMappingURL=SubjectSubscription.js.map","export function identity(x) {\n    return x;\n}\n//# sourceMappingURL=identity.js.map","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent) {\n    if (concurrent === void 0) { concurrent = Infinity; }\n    return mergeMap(identity, concurrent);\n}\n//# sourceMappingURL=mergeAll.js.map","export var isArrayLike = (function (x) { return x && typeof x.length === 'number' && typeof x !== 'function'; });\n//# sourceMappingURL=isArrayLike.js.map","export var subscribeToArray = function (array) { return function (subscriber) {\n    for (var i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n        subscriber.next(array[i]);\n    }\n    subscriber.complete();\n}; };\n//# sourceMappingURL=subscribeToArray.js.map","export function isPromise(value) {\n    return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n//# sourceMappingURL=isPromise.js.map","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport var asyncScheduler = new AsyncScheduler(AsyncAction);\nexport var async = asyncScheduler;\n//# sourceMappingURL=async.js.map","export default function _isString(x) {\n  return Object.prototype.toString.call(x) === '[object String]';\n}","import { __asyncValues, __awaiter, __generator } from \"tslib\";\nexport function subscribeToAsyncIterable(asyncIterable) {\n    return function (subscriber) {\n        process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });\n    };\n}\nfunction process(asyncIterable, subscriber) {\n    var asyncIterable_1, asyncIterable_1_1;\n    var e_1, _a;\n    return __awaiter(this, void 0, void 0, function () {\n        var value, e_1_1;\n        return __generator(this, function (_b) {\n            switch (_b.label) {\n                case 0:\n                    _b.trys.push([0, 5, 6, 11]);\n                    asyncIterable_1 = __asyncValues(asyncIterable);\n                    _b.label = 1;\n                case 1: return [4, asyncIterable_1.next()];\n                case 2:\n                    if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];\n                    value = asyncIterable_1_1.value;\n                    subscriber.next(value);\n                    _b.label = 3;\n                case 3: return [3, 1];\n                case 4: return [3, 11];\n                case 5:\n                    e_1_1 = _b.sent();\n                    e_1 = { error: e_1_1 };\n                    return [3, 11];\n                case 6:\n                    _b.trys.push([6, , 9, 10]);\n                    if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];\n                    return [4, _a.call(asyncIterable_1)];\n                case 7:\n                    _b.sent();\n                    _b.label = 8;\n                case 8: return [3, 10];\n                case 9:\n                    if (e_1) throw e_1.error;\n                    return [7];\n                case 10: return [7];\n                case 11:\n                    subscriber.complete();\n                    return [2];\n            }\n        });\n    });\n}\n//# sourceMappingURL=subscribeToAsyncIterable.js.map","import { subscribeToArray } from './subscribeToArray';\nimport { subscribeToPromise } from './subscribeToPromise';\nimport { subscribeToIterable } from './subscribeToIterable';\nimport { subscribeToObservable } from './subscribeToObservable';\nimport { isArrayLike } from './isArrayLike';\nimport { isPromise } from './isPromise';\nimport { isObject } from './isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { subscribeToAsyncIterable } from './subscribeToAsyncIterable';\nexport var subscribeTo = function (result) {\n    if (!!result && typeof result[Symbol_observable] === 'function') {\n        return subscribeToObservable(result);\n    }\n    else if (isArrayLike(result)) {\n        return subscribeToArray(result);\n    }\n    else if (isPromise(result)) {\n        return subscribeToPromise(result);\n    }\n    else if (!!result && typeof result[Symbol_iterator] === 'function') {\n        return subscribeToIterable(result);\n    }\n    else if (Symbol && Symbol.asyncIterator &&\n        !!result && typeof result[Symbol.asyncIterator] === 'function') {\n        return subscribeToAsyncIterable(result);\n    }\n    else {\n        var value = isObject(result) ? 'an invalid object' : \"'\" + result + \"'\";\n        var msg = \"You provided \" + value + \" where a stream was expected.\"\n            + ' You can provide an Observable, Promise, Array, or Iterable.';\n        throw new TypeError(msg);\n    }\n};\n//# sourceMappingURL=subscribeTo.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport var subscribeToObservable = function (obj) { return function (subscriber) {\n    var obs = obj[Symbol_observable]();\n    if (typeof obs.subscribe !== 'function') {\n        throw new TypeError('Provided object does not correctly implement Symbol.observable');\n    }\n    else {\n        return obs.subscribe(subscriber);\n    }\n}; };\n//# sourceMappingURL=subscribeToObservable.js.map","import { hostReportError } from './hostReportError';\nexport var subscribeToPromise = function (promise) { return function (subscriber) {\n    promise.then(function (value) {\n        if (!subscriber.closed) {\n            subscriber.next(value);\n            subscriber.complete();\n        }\n    }, function (err) { return subscriber.error(err); })\n        .then(null, hostReportError);\n    return subscriber;\n}; };\n//# sourceMappingURL=subscribeToPromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport var subscribeToIterable = function (iterable) { return function (subscriber) {\n    var iterator = iterable[Symbol_iterator]();\n    do {\n        var item = void 0;\n        try {\n            item = iterator.next();\n        }\n        catch (err) {\n            subscriber.error(err);\n            return;\n        }\n        if (item.done) {\n            subscriber.complete();\n            break;\n        }\n        subscriber.next(item.value);\n        if (subscriber.closed) {\n            break;\n        }\n    } while (true);\n    if (typeof iterator.return === 'function') {\n        subscriber.add(function () {\n            if (iterator.return) {\n                iterator.return();\n            }\n        });\n    }\n    return subscriber;\n}; };\n//# sourceMappingURL=subscribeToIterable.js.map","import { dateTimestampProvider } from \"./scheduler/dateTimestampProvider\";\nvar Scheduler = (function () {\n    function Scheduler(SchedulerAction, now) {\n        if (now === void 0) { now = Scheduler.now; }\n        this.SchedulerAction = SchedulerAction;\n        this.now = now;\n    }\n    Scheduler.prototype.schedule = function (work, delay, state) {\n        if (delay === void 0) { delay = 0; }\n        return new this.SchedulerAction(this, work).schedule(state, delay);\n    };\n    Scheduler.now = dateTimestampProvider.now;\n    return Scheduler;\n}());\nexport { Scheduler };\n//# sourceMappingURL=Scheduler.js.map","import { __extends } from \"tslib\";\nimport { Scheduler } from '../Scheduler';\nvar AsyncScheduler = (function (_super) {\n    __extends(AsyncScheduler, _super);\n    function AsyncScheduler(SchedulerAction, now) {\n        if (now === void 0) { now = Scheduler.now; }\n        var _this = _super.call(this, SchedulerAction, function () {\n            if (AsyncScheduler.delegate && AsyncScheduler.delegate !== _this) {\n                return AsyncScheduler.delegate.now();\n            }\n            else {\n                return now();\n            }\n        }) || this;\n        _this.actions = [];\n        _this.active = false;\n        _this.scheduled = undefined;\n        return _this;\n    }\n    AsyncScheduler.prototype.schedule = function (work, delay, state) {\n        if (delay === void 0) { delay = 0; }\n        if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n            return AsyncScheduler.delegate.schedule(work, delay, state);\n        }\n        else {\n            return _super.prototype.schedule.call(this, work, delay, state);\n        }\n    };\n    AsyncScheduler.prototype.flush = function (action) {\n        var actions = this.actions;\n        if (this.active) {\n            actions.push(action);\n            return;\n        }\n        var error;\n        this.active = true;\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (action = actions.shift());\n        this.active = false;\n        if (error) {\n            while (action = actions.shift()) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    };\n    return AsyncScheduler;\n}(Scheduler));\nexport { AsyncScheduler };\n//# sourceMappingURL=AsyncScheduler.js.map","import { __extends } from \"tslib\";\nimport { Action } from './Action';\nvar AsyncAction = (function (_super) {\n    __extends(AsyncAction, _super);\n    function AsyncAction(scheduler, work) {\n        var _this = _super.call(this, scheduler, work) || this;\n        _this.scheduler = scheduler;\n        _this.work = work;\n        _this.pending = false;\n        return _this;\n    }\n    AsyncAction.prototype.schedule = function (state, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (this.closed) {\n            return this;\n        }\n        this.state = state;\n        var id = this.id;\n        var scheduler = this.scheduler;\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, delay);\n        }\n        this.pending = true;\n        this.delay = delay;\n        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n        return this;\n    };\n    AsyncAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        return setInterval(scheduler.flush.bind(scheduler, this), delay);\n    };\n    AsyncAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (delay !== null && this.delay === delay && this.pending === false) {\n            return id;\n        }\n        clearInterval(id);\n        return undefined;\n    };\n    AsyncAction.prototype.execute = function (state, delay) {\n        if (this.closed) {\n            return new Error('executing a cancelled action');\n        }\n        this.pending = false;\n        var error = this._execute(state, delay);\n        if (error) {\n            return error;\n        }\n        else if (this.pending === false && this.id != null) {\n            this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n        }\n    };\n    AsyncAction.prototype._execute = function (state, delay) {\n        var errored = false;\n        var errorValue = undefined;\n        try {\n            this.work(state);\n        }\n        catch (e) {\n            errored = true;\n            errorValue = !!e && e || new Error(e);\n        }\n        if (errored) {\n            this.unsubscribe();\n            return errorValue;\n        }\n    };\n    AsyncAction.prototype._unsubscribe = function () {\n        var id = this.id;\n        var scheduler = this.scheduler;\n        var actions = scheduler.actions;\n        var index = actions.indexOf(this);\n        this.work = null;\n        this.state = null;\n        this.pending = false;\n        this.scheduler = null;\n        if (index !== -1) {\n            actions.splice(index, 1);\n        }\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, null);\n        }\n        this.delay = null;\n    };\n    return AsyncAction;\n}(Action));\nexport { AsyncAction };\n//# sourceMappingURL=AsyncAction.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from '../Subscription';\nvar Action = (function (_super) {\n    __extends(Action, _super);\n    function Action(scheduler, work) {\n        return _super.call(this) || this;\n    }\n    Action.prototype.schedule = function (state, delay) {\n        if (delay === void 0) { delay = 0; }\n        return this;\n    };\n    return Action;\n}(Subscription));\nexport { Action };\n//# sourceMappingURL=Action.js.map","/*!\n * clipboard.js v2.0.6\n * https://clipboardjs.com/\n * \n * Licensed MIT © Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId]) {\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// 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&& value && value.__esModule) return value;\n/******/ \t\tvar ns = Object.create(null);\n/******/ \t\t__webpack_require__.r(ns);\n/******/ \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n/******/ \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n/******/ \t\treturn ns;\n/******/ \t};\n/******/\n/******/ \t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t__webpack_require__.n = function(module) {\n/******/ \t\tvar getter = module && module.__esModule ?\n/******/ \t\t\tfunction getDefault() { return module['default']; } :\n/******/ \t\t\tfunction getModuleExports() { return module; };\n/******/ \t\t__webpack_require__.d(getter, 'a', getter);\n/******/ \t\treturn getter;\n/******/ \t};\n/******/\n/******/ \t// Object.prototype.hasOwnProperty.call\n/******/ \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 6);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports) {\n\nfunction select(element) {\n    var selectedText;\n\n    if (element.nodeName === 'SELECT') {\n        element.focus();\n\n        selectedText = element.value;\n    }\n    else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n        var isReadOnly = element.hasAttribute('readonly');\n\n        if (!isReadOnly) {\n            element.setAttribute('readonly', '');\n        }\n\n        element.select();\n        element.setSelectionRange(0, element.value.length);\n\n        if (!isReadOnly) {\n            element.removeAttribute('readonly');\n        }\n\n        selectedText = element.value;\n    }\n    else {\n        if (element.hasAttribute('contenteditable')) {\n            element.focus();\n        }\n\n        var selection = window.getSelection();\n        var range = document.createRange();\n\n        range.selectNodeContents(element);\n        selection.removeAllRanges();\n        selection.addRange(range);\n\n        selectedText = selection.toString();\n    }\n\n    return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports) {\n\nfunction E () {\n  // Keep this empty so it's easier to inherit from\n  // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n  on: function (name, callback, ctx) {\n    var e = this.e || (this.e = {});\n\n    (e[name] || (e[name] = [])).push({\n      fn: callback,\n      ctx: ctx\n    });\n\n    return this;\n  },\n\n  once: function (name, callback, ctx) {\n    var self = this;\n    function listener () {\n      self.off(name, listener);\n      callback.apply(ctx, arguments);\n    };\n\n    listener._ = callback\n    return this.on(name, listener, ctx);\n  },\n\n  emit: function (name) {\n    var data = [].slice.call(arguments, 1);\n    var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n    var i = 0;\n    var len = evtArr.length;\n\n    for (i; i < len; i++) {\n      evtArr[i].fn.apply(evtArr[i].ctx, data);\n    }\n\n    return this;\n  },\n\n  off: function (name, callback) {\n    var e = this.e || (this.e = {});\n    var evts = e[name];\n    var liveEvents = [];\n\n    if (evts && callback) {\n      for (var i = 0, len = evts.length; i < len; i++) {\n        if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n          liveEvents.push(evts[i]);\n      }\n    }\n\n    // Remove event from queue to prevent memory leak\n    // Suggested by https://github.com/lazd\n    // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n    (liveEvents.length)\n      ? e[name] = liveEvents\n      : delete e[name];\n\n    return this;\n  }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar is = __webpack_require__(3);\nvar delegate = __webpack_require__(4);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n    if (!target && !type && !callback) {\n        throw new Error('Missing required arguments');\n    }\n\n    if (!is.string(type)) {\n        throw new TypeError('Second argument must be a String');\n    }\n\n    if (!is.fn(callback)) {\n        throw new TypeError('Third argument must be a Function');\n    }\n\n    if (is.node(target)) {\n        return listenNode(target, type, callback);\n    }\n    else if (is.nodeList(target)) {\n        return listenNodeList(target, type, callback);\n    }\n    else if (is.string(target)) {\n        return listenSelector(target, type, callback);\n    }\n    else {\n        throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n    }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n    node.addEventListener(type, callback);\n\n    return {\n        destroy: function() {\n            node.removeEventListener(type, callback);\n        }\n    }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n    Array.prototype.forEach.call(nodeList, function(node) {\n        node.addEventListener(type, callback);\n    });\n\n    return {\n        destroy: function() {\n            Array.prototype.forEach.call(nodeList, function(node) {\n                node.removeEventListener(type, callback);\n            });\n        }\n    }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n    return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n    return value !== undefined\n        && value instanceof HTMLElement\n        && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n    var type = Object.prototype.toString.call(value);\n\n    return value !== undefined\n        && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n        && ('length' in value)\n        && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n    return typeof value === 'string'\n        || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n    var type = Object.prototype.toString.call(value);\n\n    return type === '[object Function]';\n};\n\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar closest = __webpack_require__(5);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n    var listenerFn = listener.apply(this, arguments);\n\n    element.addEventListener(type, listenerFn, useCapture);\n\n    return {\n        destroy: function() {\n            element.removeEventListener(type, listenerFn, useCapture);\n        }\n    }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n    // Handle the regular Element usage\n    if (typeof elements.addEventListener === 'function') {\n        return _delegate.apply(null, arguments);\n    }\n\n    // Handle Element-less usage, it defaults to global delegation\n    if (typeof type === 'function') {\n        // Use `document` as the first parameter, then apply arguments\n        // This is a short way to .unshift `arguments` without running into deoptimizations\n        return _delegate.bind(null, document).apply(null, arguments);\n    }\n\n    // Handle Selector-based usage\n    if (typeof elements === 'string') {\n        elements = document.querySelectorAll(elements);\n    }\n\n    // Handle Array-like based usage\n    return Array.prototype.map.call(elements, function (element) {\n        return _delegate(element, selector, type, callback, useCapture);\n    });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n    return function(e) {\n        e.delegateTarget = closest(e.target, selector);\n\n        if (e.delegateTarget) {\n            callback.call(element, e);\n        }\n    }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n    var proto = Element.prototype;\n\n    proto.matches = proto.matchesSelector ||\n                    proto.mozMatchesSelector ||\n                    proto.msMatchesSelector ||\n                    proto.oMatchesSelector ||\n                    proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n    while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n        if (typeof element.matches === 'function' &&\n            element.matches(selector)) {\n          return element;\n        }\n        element = element.parentNode;\n    }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(0);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n\n// CONCATENATED MODULE: ./src/clipboard-action.js\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n/**\n * Inner class which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n */\n\nvar clipboard_action_ClipboardAction = function () {\n    /**\n     * @param {Object} options\n     */\n    function ClipboardAction(options) {\n        _classCallCheck(this, ClipboardAction);\n\n        this.resolveOptions(options);\n        this.initSelection();\n    }\n\n    /**\n     * Defines base properties passed from constructor.\n     * @param {Object} options\n     */\n\n\n    _createClass(ClipboardAction, [{\n        key: 'resolveOptions',\n        value: function resolveOptions() {\n            var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n            this.action = options.action;\n            this.container = options.container;\n            this.emitter = options.emitter;\n            this.target = options.target;\n            this.text = options.text;\n            this.trigger = options.trigger;\n\n            this.selectedText = '';\n        }\n\n        /**\n         * Decides which selection strategy is going to be applied based\n         * on the existence of `text` and `target` properties.\n         */\n\n    }, {\n        key: 'initSelection',\n        value: function initSelection() {\n            if (this.text) {\n                this.selectFake();\n            } else if (this.target) {\n                this.selectTarget();\n            }\n        }\n\n        /**\n         * Creates a fake textarea element, sets its value from `text` property,\n         * and makes a selection on it.\n         */\n\n    }, {\n        key: 'selectFake',\n        value: function selectFake() {\n            var _this = this;\n\n            var isRTL = document.documentElement.getAttribute('dir') == 'rtl';\n\n            this.removeFake();\n\n            this.fakeHandlerCallback = function () {\n                return _this.removeFake();\n            };\n            this.fakeHandler = this.container.addEventListener('click', this.fakeHandlerCallback) || true;\n\n            this.fakeElem = document.createElement('textarea');\n            // Prevent zooming on iOS\n            this.fakeElem.style.fontSize = '12pt';\n            // Reset box model\n            this.fakeElem.style.border = '0';\n            this.fakeElem.style.padding = '0';\n            this.fakeElem.style.margin = '0';\n            // Move element out of screen horizontally\n            this.fakeElem.style.position = 'absolute';\n            this.fakeElem.style[isRTL ? 'right' : 'left'] = '-9999px';\n            // Move element to the same position vertically\n            var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n            this.fakeElem.style.top = yPosition + 'px';\n\n            this.fakeElem.setAttribute('readonly', '');\n            this.fakeElem.value = this.text;\n\n            this.container.appendChild(this.fakeElem);\n\n            this.selectedText = select_default()(this.fakeElem);\n            this.copyText();\n        }\n\n        /**\n         * Only removes the fake element after another click event, that way\n         * a user can hit `Ctrl+C` to copy because selection still exists.\n         */\n\n    }, {\n        key: 'removeFake',\n        value: function removeFake() {\n            if (this.fakeHandler) {\n                this.container.removeEventListener('click', this.fakeHandlerCallback);\n                this.fakeHandler = null;\n                this.fakeHandlerCallback = null;\n            }\n\n            if (this.fakeElem) {\n                this.container.removeChild(this.fakeElem);\n                this.fakeElem = null;\n            }\n        }\n\n        /**\n         * Selects the content from element passed on `target` property.\n         */\n\n    }, {\n        key: 'selectTarget',\n        value: function selectTarget() {\n            this.selectedText = select_default()(this.target);\n            this.copyText();\n        }\n\n        /**\n         * Executes the copy operation based on the current selection.\n         */\n\n    }, {\n        key: 'copyText',\n        value: function copyText() {\n            var succeeded = void 0;\n\n            try {\n                succeeded = document.execCommand(this.action);\n            } catch (err) {\n                succeeded = false;\n            }\n\n            this.handleResult(succeeded);\n        }\n\n        /**\n         * Fires an event based on the copy operation result.\n         * @param {Boolean} succeeded\n         */\n\n    }, {\n        key: 'handleResult',\n        value: function handleResult(succeeded) {\n            this.emitter.emit(succeeded ? 'success' : 'error', {\n                action: this.action,\n                text: this.selectedText,\n                trigger: this.trigger,\n                clearSelection: this.clearSelection.bind(this)\n            });\n        }\n\n        /**\n         * Moves focus away from `target` and back to the trigger, removes current selection.\n         */\n\n    }, {\n        key: 'clearSelection',\n        value: function clearSelection() {\n            if (this.trigger) {\n                this.trigger.focus();\n            }\n            document.activeElement.blur();\n            window.getSelection().removeAllRanges();\n        }\n\n        /**\n         * Sets the `action` to be performed which can be either 'copy' or 'cut'.\n         * @param {String} action\n         */\n\n    }, {\n        key: 'destroy',\n\n\n        /**\n         * Destroy lifecycle.\n         */\n        value: function destroy() {\n            this.removeFake();\n        }\n    }, {\n        key: 'action',\n        set: function set() {\n            var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'copy';\n\n            this._action = action;\n\n            if (this._action !== 'copy' && this._action !== 'cut') {\n                throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n            }\n        }\n\n        /**\n         * Gets the `action` property.\n         * @return {String}\n         */\n        ,\n        get: function get() {\n            return this._action;\n        }\n\n        /**\n         * Sets the `target` property using an element\n         * that will be have its content copied.\n         * @param {Element} target\n         */\n\n    }, {\n        key: 'target',\n        set: function set(target) {\n            if (target !== undefined) {\n                if (target && (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && target.nodeType === 1) {\n                    if (this.action === 'copy' && target.hasAttribute('disabled')) {\n                        throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n                    }\n\n                    if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n                        throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n                    }\n\n                    this._target = target;\n                } else {\n                    throw new Error('Invalid \"target\" value, use a valid Element');\n                }\n            }\n        }\n\n        /**\n         * Gets the `target` property.\n         * @return {String|HTMLElement}\n         */\n        ,\n        get: function get() {\n            return this._target;\n        }\n    }]);\n\n    return ClipboardAction;\n}();\n\n/* harmony default export */ var clipboard_action = (clipboard_action_ClipboardAction);\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(1);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(2);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n\n// CONCATENATED MODULE: ./src/clipboard.js\nvar clipboard_typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar clipboard_createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction clipboard_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\n\n\n\n\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\nvar clipboard_Clipboard = function (_Emitter) {\n    _inherits(Clipboard, _Emitter);\n\n    /**\n     * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n     * @param {Object} options\n     */\n    function Clipboard(trigger, options) {\n        clipboard_classCallCheck(this, Clipboard);\n\n        var _this = _possibleConstructorReturn(this, (Clipboard.__proto__ || Object.getPrototypeOf(Clipboard)).call(this));\n\n        _this.resolveOptions(options);\n        _this.listenClick(trigger);\n        return _this;\n    }\n\n    /**\n     * Defines if attributes would be resolved using internal setter functions\n     * or custom functions that were passed in the constructor.\n     * @param {Object} options\n     */\n\n\n    clipboard_createClass(Clipboard, [{\n        key: 'resolveOptions',\n        value: function resolveOptions() {\n            var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n            this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n            this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n            this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n            this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n        }\n\n        /**\n         * Adds a click event listener to the passed trigger.\n         * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n         */\n\n    }, {\n        key: 'listenClick',\n        value: function listenClick(trigger) {\n            var _this2 = this;\n\n            this.listener = listen_default()(trigger, 'click', function (e) {\n                return _this2.onClick(e);\n            });\n        }\n\n        /**\n         * Defines a new `ClipboardAction` on each click event.\n         * @param {Event} e\n         */\n\n    }, {\n        key: 'onClick',\n        value: function onClick(e) {\n            var trigger = e.delegateTarget || e.currentTarget;\n\n            if (this.clipboardAction) {\n                this.clipboardAction = null;\n            }\n\n            this.clipboardAction = new clipboard_action({\n                action: this.action(trigger),\n                target: this.target(trigger),\n                text: this.text(trigger),\n                container: this.container,\n                trigger: trigger,\n                emitter: this\n            });\n        }\n\n        /**\n         * Default `action` lookup function.\n         * @param {Element} trigger\n         */\n\n    }, {\n        key: 'defaultAction',\n        value: function defaultAction(trigger) {\n            return getAttributeValue('action', trigger);\n        }\n\n        /**\n         * Default `target` lookup function.\n         * @param {Element} trigger\n         */\n\n    }, {\n        key: 'defaultTarget',\n        value: function defaultTarget(trigger) {\n            var selector = getAttributeValue('target', trigger);\n\n            if (selector) {\n                return document.querySelector(selector);\n            }\n        }\n\n        /**\n         * Returns the support of the given action, or all actions if no action is\n         * given.\n         * @param {String} [action]\n         */\n\n    }, {\n        key: 'defaultText',\n\n\n        /**\n         * Default `text` lookup function.\n         * @param {Element} trigger\n         */\n        value: function defaultText(trigger) {\n            return getAttributeValue('text', trigger);\n        }\n\n        /**\n         * Destroy lifecycle.\n         */\n\n    }, {\n        key: 'destroy',\n        value: function destroy() {\n            this.listener.destroy();\n\n            if (this.clipboardAction) {\n                this.clipboardAction.destroy();\n                this.clipboardAction = null;\n            }\n        }\n    }], [{\n        key: 'isSupported',\n        value: function isSupported() {\n            var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n\n            var actions = typeof action === 'string' ? [action] : action;\n            var support = !!document.queryCommandSupported;\n\n            actions.forEach(function (action) {\n                support = support && !!document.queryCommandSupported(action);\n            });\n\n            return support;\n        }\n    }]);\n\n    return Clipboard;\n}(tiny_emitter_default.a);\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\n\nfunction getAttributeValue(suffix, element) {\n    var attribute = 'data-clipboard-' + suffix;\n\n    if (!element.hasAttribute(attribute)) {\n        return;\n    }\n\n    return element.getAttribute(attribute);\n}\n\n/* harmony default export */ var clipboard = __webpack_exports__[\"default\"] = (clipboard_Clipboard);\n\n/***/ })\n/******/ ])[\"default\"];\n});","import { __extends } from \"tslib\";\nimport { isScheduler } from '../util/isScheduler';\nimport { isArray } from '../util/isArray';\nimport { ComplexOuterSubscriber, ComplexInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nimport { isObject } from '../util/isObject';\nimport { fromArray } from './fromArray';\nimport { lift } from '../util/lift';\nvar NONE = {};\nexport function combineLatest() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    var resultSelector = undefined;\n    var scheduler = undefined;\n    var keys = undefined;\n    if (isScheduler(observables[observables.length - 1])) {\n        scheduler = observables.pop();\n    }\n    if (typeof observables[observables.length - 1] === 'function') {\n        resultSelector = observables.pop();\n    }\n    if (observables.length === 1) {\n        var first_1 = observables[0];\n        if (isArray(first_1)) {\n            observables = first_1;\n        }\n        if (isObject(first_1) && Object.getPrototypeOf(first_1) === Object.prototype) {\n            keys = Object.keys(first_1);\n            observables = keys.map(function (key) { return first_1[key]; });\n        }\n    }\n    return lift(fromArray(observables, scheduler), new CombineLatestOperator(resultSelector, keys));\n}\nvar CombineLatestOperator = (function () {\n    function CombineLatestOperator(resultSelector, keys) {\n        this.resultSelector = resultSelector;\n        this.keys = keys;\n    }\n    CombineLatestOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector, this.keys));\n    };\n    return CombineLatestOperator;\n}());\nexport { CombineLatestOperator };\nvar CombineLatestSubscriber = (function (_super) {\n    __extends(CombineLatestSubscriber, _super);\n    function CombineLatestSubscriber(destination, resultSelector, keys) {\n        var _this = _super.call(this, destination) || this;\n        _this.resultSelector = resultSelector;\n        _this.keys = keys;\n        _this.active = 0;\n        _this.values = [];\n        _this.observables = [];\n        return _this;\n    }\n    CombineLatestSubscriber.prototype._next = function (observable) {\n        this.values.push(NONE);\n        this.observables.push(observable);\n    };\n    CombineLatestSubscriber.prototype._complete = function () {\n        var observables = this.observables;\n        var len = observables.length;\n        if (len === 0) {\n            this.destination.complete();\n        }\n        else {\n            this.active = len;\n            this.toRespond = len;\n            for (var i = 0; i < len; i++) {\n                var observable = observables[i];\n                this.add(innerSubscribe(observable, new ComplexInnerSubscriber(this, null, i)));\n            }\n        }\n    };\n    CombineLatestSubscriber.prototype.notifyComplete = function () {\n        if ((this.active -= 1) === 0) {\n            this.destination.complete();\n        }\n    };\n    CombineLatestSubscriber.prototype.notifyNext = function (_outerValue, innerValue, outerIndex) {\n        var values = this.values;\n        var oldVal = values[outerIndex];\n        var toRespond = !this.toRespond\n            ? 0\n            : oldVal === NONE ? --this.toRespond : this.toRespond;\n        values[outerIndex] = innerValue;\n        if (toRespond === 0) {\n            if (this.resultSelector) {\n                this._tryResultSelector(values);\n            }\n            else {\n                this.destination.next(this.keys ?\n                    this.keys.reduce(function (result, key, i) { return (result[key] = values[i], result); }, {}) :\n                    values.slice());\n            }\n        }\n    };\n    CombineLatestSubscriber.prototype._tryResultSelector = function (values) {\n        var result;\n        try {\n            result = this.resultSelector.apply(this, values);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return CombineLatestSubscriber;\n}(ComplexOuterSubscriber));\nexport { CombineLatestSubscriber };\n//# sourceMappingURL=combineLatest.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nimport { dateTimestampProvider } from \"./scheduler/dateTimestampProvider\";\nvar ReplaySubject = (function (_super) {\n    __extends(ReplaySubject, _super);\n    function ReplaySubject(bufferSize, windowTime, timestampProvider) {\n        if (bufferSize === void 0) { bufferSize = Infinity; }\n        if (windowTime === void 0) { windowTime = Infinity; }\n        if (timestampProvider === void 0) { timestampProvider = dateTimestampProvider; }\n        var _this = _super.call(this) || this;\n        _this.timestampProvider = timestampProvider;\n        _this._events = [];\n        _this._infiniteTimeWindow = false;\n        _this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n        _this._windowTime = windowTime < 1 ? 1 : windowTime;\n        if (windowTime === Infinity) {\n            _this._infiniteTimeWindow = true;\n            _this.next = _this.nextInfiniteTimeWindow;\n        }\n        else {\n            _this.next = _this.nextTimeWindow;\n        }\n        return _this;\n    }\n    ReplaySubject.prototype.nextInfiniteTimeWindow = function (value) {\n        var _events = this._events;\n        _events.push(value);\n        if (_events.length > this._bufferSize) {\n            _events.shift();\n        }\n        _super.prototype.next.call(this, value);\n    };\n    ReplaySubject.prototype.nextTimeWindow = function (value) {\n        this._events.push({ time: this._getNow(), value: value });\n        this._trimBufferThenGetEvents();\n        _super.prototype.next.call(this, value);\n    };\n    ReplaySubject.prototype._subscribe = function (subscriber) {\n        var _infiniteTimeWindow = this._infiniteTimeWindow;\n        var _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n        var len = _events.length;\n        var subscription;\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.isStopped || this.hasError) {\n            subscription = Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            subscription = new SubjectSubscription(this, subscriber);\n        }\n        if (_infiniteTimeWindow) {\n            for (var i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i]);\n            }\n        }\n        else {\n            for (var i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i].value);\n            }\n        }\n        if (this.hasError) {\n            subscriber.error(this.thrownError);\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n        }\n        return subscription;\n    };\n    ReplaySubject.prototype._getNow = function () {\n        var scheduler = this.timestampProvider;\n        return scheduler ? scheduler.now() : dateTimestampProvider.now();\n    };\n    ReplaySubject.prototype._trimBufferThenGetEvents = function () {\n        var now = this._getNow();\n        var _bufferSize = this._bufferSize;\n        var _windowTime = this._windowTime;\n        var _events = this._events;\n        var eventsCount = _events.length;\n        var spliceCount = 0;\n        while (spliceCount < eventsCount) {\n            if ((now - _events[spliceCount].time) < _windowTime) {\n                break;\n            }\n            spliceCount++;\n        }\n        if (eventsCount > _bufferSize) {\n            spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n        }\n        if (spliceCount > 0) {\n            _events.splice(0, spliceCount);\n        }\n        return _events;\n    };\n    return ReplaySubject;\n}(Subject));\nexport { ReplaySubject };\n//# sourceMappingURL=ReplaySubject.js.map","/**\r\n * A collection of shims that provide minimal functionality of the ES6 collections.\r\n *\r\n * These implementations are not meant to be used outside of the ResizeObserver\r\n * modules as they cover only a limited range of use cases.\r\n */\r\n/* eslint-disable require-jsdoc, valid-jsdoc */\r\nvar MapShim = (function () {\r\n    if (typeof Map !== 'undefined') {\r\n        return Map;\r\n    }\r\n    /**\r\n     * Returns index in provided array that matches the specified key.\r\n     *\r\n     * @param {Array<Array>} arr\r\n     * @param {*} key\r\n     * @returns {number}\r\n     */\r\n    function getIndex(arr, key) {\r\n        var result = -1;\r\n        arr.some(function (entry, index) {\r\n            if (entry[0] === key) {\r\n                result = index;\r\n                return true;\r\n            }\r\n            return false;\r\n        });\r\n        return result;\r\n    }\r\n    return /** @class */ (function () {\r\n        function class_1() {\r\n            this.__entries__ = [];\r\n        }\r\n        Object.defineProperty(class_1.prototype, \"size\", {\r\n            /**\r\n             * @returns {boolean}\r\n             */\r\n            get: function () {\r\n                return this.__entries__.length;\r\n            },\r\n            enumerable: true,\r\n            configurable: true\r\n        });\r\n        /**\r\n         * @param {*} key\r\n         * @returns {*}\r\n         */\r\n        class_1.prototype.get = function (key) {\r\n            var index = getIndex(this.__entries__, key);\r\n            var entry = this.__entries__[index];\r\n            return entry && entry[1];\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @param {*} value\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.set = function (key, value) {\r\n            var index = getIndex(this.__entries__, key);\r\n            if (~index) {\r\n                this.__entries__[index][1] = value;\r\n            }\r\n            else {\r\n                this.__entries__.push([key, value]);\r\n            }\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.delete = function (key) {\r\n            var entries = this.__entries__;\r\n            var index = getIndex(entries, key);\r\n            if (~index) {\r\n                entries.splice(index, 1);\r\n            }\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.has = function (key) {\r\n            return !!~getIndex(this.__entries__, key);\r\n        };\r\n        /**\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.clear = function () {\r\n            this.__entries__.splice(0);\r\n        };\r\n        /**\r\n         * @param {Function} callback\r\n         * @param {*} [ctx=null]\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.forEach = function (callback, ctx) {\r\n            if (ctx === void 0) { ctx = null; }\r\n            for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n                var entry = _a[_i];\r\n                callback.call(ctx, entry[1], entry[0]);\r\n            }\r\n        };\r\n        return class_1;\r\n    }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n    if (typeof global !== 'undefined' && global.Math === Math) {\r\n        return global;\r\n    }\r\n    if (typeof self !== 'undefined' && self.Math === Math) {\r\n        return self;\r\n    }\r\n    if (typeof window !== 'undefined' && window.Math === Math) {\r\n        return window;\r\n    }\r\n    // eslint-disable-next-line no-new-func\r\n    return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n    if (typeof requestAnimationFrame === 'function') {\r\n        // It's required to use a bounded function because IE sometimes throws\r\n        // an \"Invalid calling object\" error if rAF is invoked without the global\r\n        // object on the left hand side.\r\n        return requestAnimationFrame.bind(global$1);\r\n    }\r\n    return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n    var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n    /**\r\n     * Invokes the original callback function and schedules new invocation if\r\n     * the \"proxy\" was called during current request.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function resolvePending() {\r\n        if (leadingCall) {\r\n            leadingCall = false;\r\n            callback();\r\n        }\r\n        if (trailingCall) {\r\n            proxy();\r\n        }\r\n    }\r\n    /**\r\n     * Callback invoked after the specified delay. It will further postpone\r\n     * invocation of the original function delegating it to the\r\n     * requestAnimationFrame.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function timeoutCallback() {\r\n        requestAnimationFrame$1(resolvePending);\r\n    }\r\n    /**\r\n     * Schedules invocation of the original function.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function proxy() {\r\n        var timeStamp = Date.now();\r\n        if (leadingCall) {\r\n            // Reject immediately following calls.\r\n            if (timeStamp - lastCallTime < trailingTimeout) {\r\n                return;\r\n            }\r\n            // Schedule new call to be in invoked when the pending one is resolved.\r\n            // This is important for \"transitions\" which never actually start\r\n            // immediately so there is a chance that we might miss one if change\r\n            // happens amids the pending invocation.\r\n            trailingCall = true;\r\n        }\r\n        else {\r\n            leadingCall = true;\r\n            trailingCall = false;\r\n            setTimeout(timeoutCallback, delay);\r\n        }\r\n        lastCallTime = timeStamp;\r\n    }\r\n    return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserverController.\r\n     *\r\n     * @private\r\n     */\r\n    function ResizeObserverController() {\r\n        /**\r\n         * Indicates whether DOM listeners have been added.\r\n         *\r\n         * @private {boolean}\r\n         */\r\n        this.connected_ = false;\r\n        /**\r\n         * Tells that controller has subscribed for Mutation Events.\r\n         *\r\n         * @private {boolean}\r\n         */\r\n        this.mutationEventsAdded_ = false;\r\n        /**\r\n         * Keeps reference to the instance of MutationObserver.\r\n         *\r\n         * @private {MutationObserver}\r\n         */\r\n        this.mutationsObserver_ = null;\r\n        /**\r\n         * A list of connected observers.\r\n         *\r\n         * @private {Array<ResizeObserverSPI>}\r\n         */\r\n        this.observers_ = [];\r\n        this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n        this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n    }\r\n    /**\r\n     * Adds observer to observers list.\r\n     *\r\n     * @param {ResizeObserverSPI} observer - Observer to be added.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.addObserver = function (observer) {\r\n        if (!~this.observers_.indexOf(observer)) {\r\n            this.observers_.push(observer);\r\n        }\r\n        // Add listeners if they haven't been added yet.\r\n        if (!this.connected_) {\r\n            this.connect_();\r\n        }\r\n    };\r\n    /**\r\n     * Removes observer from observers list.\r\n     *\r\n     * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.removeObserver = function (observer) {\r\n        var observers = this.observers_;\r\n        var index = observers.indexOf(observer);\r\n        // Remove observer if it's present in registry.\r\n        if (~index) {\r\n            observers.splice(index, 1);\r\n        }\r\n        // Remove listeners if controller has no connected observers.\r\n        if (!observers.length && this.connected_) {\r\n            this.disconnect_();\r\n        }\r\n    };\r\n    /**\r\n     * Invokes the update of observers. It will continue running updates insofar\r\n     * it detects changes.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.refresh = function () {\r\n        var changesDetected = this.updateObservers_();\r\n        // Continue running updates if changes have been detected as there might\r\n        // be future ones caused by CSS transitions.\r\n        if (changesDetected) {\r\n            this.refresh();\r\n        }\r\n    };\r\n    /**\r\n     * Updates every observer from observers list and notifies them of queued\r\n     * entries.\r\n     *\r\n     * @private\r\n     * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n     *      dimensions of it's elements.\r\n     */\r\n    ResizeObserverController.prototype.updateObservers_ = function () {\r\n        // Collect observers that have active observations.\r\n        var activeObservers = this.observers_.filter(function (observer) {\r\n            return observer.gatherActive(), observer.hasActive();\r\n        });\r\n        // Deliver notifications in a separate cycle in order to avoid any\r\n        // collisions between observers, e.g. when multiple instances of\r\n        // ResizeObserver are tracking the same element and the callback of one\r\n        // of them changes content dimensions of the observed target. Sometimes\r\n        // this may result in notifications being blocked for the rest of observers.\r\n        activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n        return activeObservers.length > 0;\r\n    };\r\n    /**\r\n     * Initializes DOM listeners.\r\n     *\r\n     * @private\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.connect_ = function () {\r\n        // Do nothing if running in a non-browser environment or if listeners\r\n        // have been already added.\r\n        if (!isBrowser || this.connected_) {\r\n            return;\r\n        }\r\n        // Subscription to the \"Transitionend\" event is used as a workaround for\r\n        // delayed transitions. This way it's possible to capture at least the\r\n        // final state of an element.\r\n        document.addEventListener('transitionend', this.onTransitionEnd_);\r\n        window.addEventListener('resize', this.refresh);\r\n        if (mutationObserverSupported) {\r\n            this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n            this.mutationsObserver_.observe(document, {\r\n                attributes: true,\r\n                childList: true,\r\n                characterData: true,\r\n                subtree: true\r\n            });\r\n        }\r\n        else {\r\n            document.addEventListener('DOMSubtreeModified', this.refresh);\r\n            this.mutationEventsAdded_ = true;\r\n        }\r\n        this.connected_ = true;\r\n    };\r\n    /**\r\n     * Removes DOM listeners.\r\n     *\r\n     * @private\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.disconnect_ = function () {\r\n        // Do nothing if running in a non-browser environment or if listeners\r\n        // have been already removed.\r\n        if (!isBrowser || !this.connected_) {\r\n            return;\r\n        }\r\n        document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n        window.removeEventListener('resize', this.refresh);\r\n        if (this.mutationsObserver_) {\r\n            this.mutationsObserver_.disconnect();\r\n        }\r\n        if (this.mutationEventsAdded_) {\r\n            document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n        }\r\n        this.mutationsObserver_ = null;\r\n        this.mutationEventsAdded_ = false;\r\n        this.connected_ = false;\r\n    };\r\n    /**\r\n     * \"Transitionend\" event handler.\r\n     *\r\n     * @private\r\n     * @param {TransitionEvent} event\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n        var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n        // Detect whether transition may affect dimensions of an element.\r\n        var isReflowProperty = transitionKeys.some(function (key) {\r\n            return !!~propertyName.indexOf(key);\r\n        });\r\n        if (isReflowProperty) {\r\n            this.refresh();\r\n        }\r\n    };\r\n    /**\r\n     * Returns instance of the ResizeObserverController.\r\n     *\r\n     * @returns {ResizeObserverController}\r\n     */\r\n    ResizeObserverController.getInstance = function () {\r\n        if (!this.instance_) {\r\n            this.instance_ = new ResizeObserverController();\r\n        }\r\n        return this.instance_;\r\n    };\r\n    /**\r\n     * Holds reference to the controller's instance.\r\n     *\r\n     * @private {ResizeObserverController}\r\n     */\r\n    ResizeObserverController.instance_ = null;\r\n    return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n    for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n        var key = _a[_i];\r\n        Object.defineProperty(target, key, {\r\n            value: props[key],\r\n            enumerable: false,\r\n            writable: false,\r\n            configurable: true\r\n        });\r\n    }\r\n    return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n    // Assume that the element is an instance of Node, which means that it\r\n    // has the \"ownerDocument\" property from which we can retrieve a\r\n    // corresponding global object.\r\n    var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n    // Return the local global object if it's not possible extract one from\r\n    // provided element.\r\n    return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n    return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n    var positions = [];\r\n    for (var _i = 1; _i < arguments.length; _i++) {\r\n        positions[_i - 1] = arguments[_i];\r\n    }\r\n    return positions.reduce(function (size, position) {\r\n        var value = styles['border-' + position + '-width'];\r\n        return size + toFloat(value);\r\n    }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n    var positions = ['top', 'right', 'bottom', 'left'];\r\n    var paddings = {};\r\n    for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n        var position = positions_1[_i];\r\n        var value = styles['padding-' + position];\r\n        paddings[position] = toFloat(value);\r\n    }\r\n    return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n *      to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n    var bbox = target.getBBox();\r\n    return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n    // Client width & height properties can't be\r\n    // used exclusively as they provide rounded values.\r\n    var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n    // By this condition we can catch all non-replaced inline, hidden and\r\n    // detached elements. Though elements with width & height properties less\r\n    // than 0.5 will be discarded as well.\r\n    //\r\n    // Without it we would need to implement separate methods for each of\r\n    // those cases and it's not possible to perform a precise and performance\r\n    // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n    // gives wrong results for elements with width & height less than 0.5.\r\n    if (!clientWidth && !clientHeight) {\r\n        return emptyRect;\r\n    }\r\n    var styles = getWindowOf(target).getComputedStyle(target);\r\n    var paddings = getPaddings(styles);\r\n    var horizPad = paddings.left + paddings.right;\r\n    var vertPad = paddings.top + paddings.bottom;\r\n    // Computed styles of width & height are being used because they are the\r\n    // only dimensions available to JS that contain non-rounded values. It could\r\n    // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n    // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n    var width = toFloat(styles.width), height = toFloat(styles.height);\r\n    // Width & height include paddings and borders when the 'border-box' box\r\n    // model is applied (except for IE).\r\n    if (styles.boxSizing === 'border-box') {\r\n        // Following conditions are required to handle Internet Explorer which\r\n        // doesn't include paddings and borders to computed CSS dimensions.\r\n        //\r\n        // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n        // properties then it's either IE, and thus we don't need to subtract\r\n        // anything, or an element merely doesn't have paddings/borders styles.\r\n        if (Math.round(width + horizPad) !== clientWidth) {\r\n            width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n        }\r\n        if (Math.round(height + vertPad) !== clientHeight) {\r\n            height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n        }\r\n    }\r\n    // Following steps can't be applied to the document's root element as its\r\n    // client[Width/Height] properties represent viewport area of the window.\r\n    // Besides, it's as well not necessary as the <html> itself neither has\r\n    // rendered scroll bars nor it can be clipped.\r\n    if (!isDocumentElement(target)) {\r\n        // In some browsers (only in Firefox, actually) CSS width & height\r\n        // include scroll bars size which can be removed at this step as scroll\r\n        // bars are the only difference between rounded dimensions + paddings\r\n        // and \"client\" properties, though that is not always true in Chrome.\r\n        var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n        var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n        // Chrome has a rather weird rounding of \"client\" properties.\r\n        // E.g. for an element with content width of 314.2px it sometimes gives\r\n        // the client width of 315px and for the width of 314.7px it may give\r\n        // 314px. And it doesn't happen all the time. So just ignore this delta\r\n        // as a non-relevant.\r\n        if (Math.abs(vertScrollbar) !== 1) {\r\n            width -= vertScrollbar;\r\n        }\r\n        if (Math.abs(horizScrollbar) !== 1) {\r\n            height -= horizScrollbar;\r\n        }\r\n    }\r\n    return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n    // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n    // interface.\r\n    if (typeof SVGGraphicsElement !== 'undefined') {\r\n        return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n    }\r\n    // If it's so, then check that element is at least an instance of the\r\n    // SVGElement and that it has the \"getBBox\" method.\r\n    // eslint-disable-next-line no-extra-parens\r\n    return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n        typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element (<html>).\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n    return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n    if (!isBrowser) {\r\n        return emptyRect;\r\n    }\r\n    if (isSVGGraphicsElement(target)) {\r\n        return getSVGContentRect(target);\r\n    }\r\n    return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n    var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n    // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n    var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n    var rect = Object.create(Constr.prototype);\r\n    // Rectangle's properties are not writable and non-enumerable.\r\n    defineConfigurable(rect, {\r\n        x: x, y: y, width: width, height: height,\r\n        top: y,\r\n        right: x + width,\r\n        bottom: height + y,\r\n        left: x\r\n    });\r\n    return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n    return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n    /**\r\n     * Creates an instance of ResizeObservation.\r\n     *\r\n     * @param {Element} target - Element to be observed.\r\n     */\r\n    function ResizeObservation(target) {\r\n        /**\r\n         * Broadcasted width of content rectangle.\r\n         *\r\n         * @type {number}\r\n         */\r\n        this.broadcastWidth = 0;\r\n        /**\r\n         * Broadcasted height of content rectangle.\r\n         *\r\n         * @type {number}\r\n         */\r\n        this.broadcastHeight = 0;\r\n        /**\r\n         * Reference to the last observed content rectangle.\r\n         *\r\n         * @private {DOMRectInit}\r\n         */\r\n        this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n        this.target = target;\r\n    }\r\n    /**\r\n     * Updates content rectangle and tells whether it's width or height properties\r\n     * have changed since the last broadcast.\r\n     *\r\n     * @returns {boolean}\r\n     */\r\n    ResizeObservation.prototype.isActive = function () {\r\n        var rect = getContentRect(this.target);\r\n        this.contentRect_ = rect;\r\n        return (rect.width !== this.broadcastWidth ||\r\n            rect.height !== this.broadcastHeight);\r\n    };\r\n    /**\r\n     * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n     * from the corresponding properties of the last observed content rectangle.\r\n     *\r\n     * @returns {DOMRectInit} Last observed content rectangle.\r\n     */\r\n    ResizeObservation.prototype.broadcastRect = function () {\r\n        var rect = this.contentRect_;\r\n        this.broadcastWidth = rect.width;\r\n        this.broadcastHeight = rect.height;\r\n        return rect;\r\n    };\r\n    return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n    /**\r\n     * Creates an instance of ResizeObserverEntry.\r\n     *\r\n     * @param {Element} target - Element that is being observed.\r\n     * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n     */\r\n    function ResizeObserverEntry(target, rectInit) {\r\n        var contentRect = createReadOnlyRect(rectInit);\r\n        // According to the specification following properties are not writable\r\n        // and are also not enumerable in the native implementation.\r\n        //\r\n        // Property accessors are not being used as they'd require to define a\r\n        // private WeakMap storage which may cause memory leaks in browsers that\r\n        // don't support this type of collections.\r\n        defineConfigurable(this, { target: target, contentRect: contentRect });\r\n    }\r\n    return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserver.\r\n     *\r\n     * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n     *      when one of the observed elements changes it's content dimensions.\r\n     * @param {ResizeObserverController} controller - Controller instance which\r\n     *      is responsible for the updates of observer.\r\n     * @param {ResizeObserver} callbackCtx - Reference to the public\r\n     *      ResizeObserver instance which will be passed to callback function.\r\n     */\r\n    function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n        /**\r\n         * Collection of resize observations that have detected changes in dimensions\r\n         * of elements.\r\n         *\r\n         * @private {Array<ResizeObservation>}\r\n         */\r\n        this.activeObservations_ = [];\r\n        /**\r\n         * Registry of the ResizeObservation instances.\r\n         *\r\n         * @private {Map<Element, ResizeObservation>}\r\n         */\r\n        this.observations_ = new MapShim();\r\n        if (typeof callback !== 'function') {\r\n            throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n        }\r\n        this.callback_ = callback;\r\n        this.controller_ = controller;\r\n        this.callbackCtx_ = callbackCtx;\r\n    }\r\n    /**\r\n     * Starts observing provided element.\r\n     *\r\n     * @param {Element} target - Element to be observed.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.observe = function (target) {\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        // Do nothing if current environment doesn't have the Element interface.\r\n        if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n            return;\r\n        }\r\n        if (!(target instanceof getWindowOf(target).Element)) {\r\n            throw new TypeError('parameter 1 is not of type \"Element\".');\r\n        }\r\n        var observations = this.observations_;\r\n        // Do nothing if element is already being observed.\r\n        if (observations.has(target)) {\r\n            return;\r\n        }\r\n        observations.set(target, new ResizeObservation(target));\r\n        this.controller_.addObserver(this);\r\n        // Force the update of observations.\r\n        this.controller_.refresh();\r\n    };\r\n    /**\r\n     * Stops observing provided element.\r\n     *\r\n     * @param {Element} target - Element to stop observing.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.unobserve = function (target) {\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        // Do nothing if current environment doesn't have the Element interface.\r\n        if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n            return;\r\n        }\r\n        if (!(target instanceof getWindowOf(target).Element)) {\r\n            throw new TypeError('parameter 1 is not of type \"Element\".');\r\n        }\r\n        var observations = this.observations_;\r\n        // Do nothing if element is not being observed.\r\n        if (!observations.has(target)) {\r\n            return;\r\n        }\r\n        observations.delete(target);\r\n        if (!observations.size) {\r\n            this.controller_.removeObserver(this);\r\n        }\r\n    };\r\n    /**\r\n     * Stops observing all elements.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.disconnect = function () {\r\n        this.clearActive();\r\n        this.observations_.clear();\r\n        this.controller_.removeObserver(this);\r\n    };\r\n    /**\r\n     * Collects observation instances the associated element of which has changed\r\n     * it's content rectangle.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.gatherActive = function () {\r\n        var _this = this;\r\n        this.clearActive();\r\n        this.observations_.forEach(function (observation) {\r\n            if (observation.isActive()) {\r\n                _this.activeObservations_.push(observation);\r\n            }\r\n        });\r\n    };\r\n    /**\r\n     * Invokes initial callback function with a list of ResizeObserverEntry\r\n     * instances collected from active resize observations.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.broadcastActive = function () {\r\n        // Do nothing if observer doesn't have active observations.\r\n        if (!this.hasActive()) {\r\n            return;\r\n        }\r\n        var ctx = this.callbackCtx_;\r\n        // Create ResizeObserverEntry instance for every active observation.\r\n        var entries = this.activeObservations_.map(function (observation) {\r\n            return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n        });\r\n        this.callback_.call(ctx, entries, ctx);\r\n        this.clearActive();\r\n    };\r\n    /**\r\n     * Clears the collection of active observations.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.clearActive = function () {\r\n        this.activeObservations_.splice(0);\r\n    };\r\n    /**\r\n     * Tells whether observer has active observations.\r\n     *\r\n     * @returns {boolean}\r\n     */\r\n    ResizeObserverSPI.prototype.hasActive = function () {\r\n        return this.activeObservations_.length > 0;\r\n    };\r\n    return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserver.\r\n     *\r\n     * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n     *      dimensions of the observed elements change.\r\n     */\r\n    function ResizeObserver(callback) {\r\n        if (!(this instanceof ResizeObserver)) {\r\n            throw new TypeError('Cannot call a class as a function.');\r\n        }\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        var controller = ResizeObserverController.getInstance();\r\n        var observer = new ResizeObserverSPI(callback, controller, this);\r\n        observers.set(this, observer);\r\n    }\r\n    return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n    'observe',\r\n    'unobserve',\r\n    'disconnect'\r\n].forEach(function (method) {\r\n    ResizeObserver.prototype[method] = function () {\r\n        var _a;\r\n        return (_a = observers.get(this))[method].apply(_a, arguments);\r\n    };\r\n});\n\nvar index = (function () {\r\n    // Export existing implementation if available.\r\n    if (typeof global$1.ResizeObserver !== 'undefined') {\r\n        return global$1.ResizeObserver;\r\n    }\r\n    return ResizeObserver;\r\n})();\n\nexport default index;\n","import { Observable } from '../Observable';\nimport { from } from './from';\nexport function defer(observableFactory) {\n    return new Observable(function (subscriber) {\n        var input;\n        try {\n            input = observableFactory();\n        }\n        catch (err) {\n            subscriber.error(err);\n            return undefined;\n        }\n        var source = from(input);\n        return source.subscribe(subscriber);\n    });\n}\n//# sourceMappingURL=defer.js.map","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param  {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n  var str = '' + string;\n  var match = matchHtmlRegExp.exec(str);\n\n  if (!match) {\n    return str;\n  }\n\n  var escape;\n  var html = '';\n  var index = 0;\n  var lastIndex = 0;\n\n  for (index = match.index; index < str.length; index++) {\n    switch (str.charCodeAt(index)) {\n      case 34: // \"\n        escape = '&quot;';\n        break;\n      case 38: // &\n        escape = '&amp;';\n        break;\n      case 39: // '\n        escape = '&#39;';\n        break;\n      case 60: // <\n        escape = '&lt;';\n        break;\n      case 62: // >\n        escape = '&gt;';\n        break;\n      default:\n        continue;\n    }\n\n    if (lastIndex !== index) {\n      html += str.substring(lastIndex, index);\n    }\n\n    lastIndex = index + 1;\n    html += escape;\n  }\n\n  return lastIndex !== index\n    ? html + str.substring(lastIndex, index)\n    : html;\n}\n","export default function _has(prop, obj) {\n  return Object.prototype.hasOwnProperty.call(obj, prop);\n}","import _has from \"./_has.js\";\nvar toString = Object.prototype.toString;\n\nvar _isArguments =\n/*#__PURE__*/\nfunction () {\n  return toString.call(arguments) === '[object Arguments]' ? function _isArguments(x) {\n    return toString.call(x) === '[object Arguments]';\n  } : function _isArguments(x) {\n    return _has('callee', x);\n  };\n}();\n\nexport default _isArguments;","import _curry1 from \"./internal/_curry1.js\";\nimport _has from \"./internal/_has.js\";\nimport _isArguments from \"./internal/_isArguments.js\"; // cover IE < 9 keys issues\n\nvar hasEnumBug = !\n/*#__PURE__*/\n{\n  toString: null\n}.propertyIsEnumerable('toString');\nvar nonEnumerableProps = ['constructor', 'valueOf', 'isPrototypeOf', 'toString', 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString']; // Safari bug\n\nvar hasArgsEnumBug =\n/*#__PURE__*/\nfunction () {\n  'use strict';\n\n  return arguments.propertyIsEnumerable('length');\n}();\n\nvar contains = function contains(list, item) {\n  var idx = 0;\n\n  while (idx < list.length) {\n    if (list[idx] === item) {\n      return true;\n    }\n\n    idx += 1;\n  }\n\n  return false;\n};\n/**\n * Returns a list containing the names of all the enumerable own properties of\n * the supplied object.\n * Note that the order of the output array is not guaranteed to be consistent\n * across different JS platforms.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @sig {k: v} -> [k]\n * @param {Object} obj The object to extract properties from\n * @return {Array} An array of the object's own properties.\n * @see R.keysIn, R.values\n * @example\n *\n *      R.keys({a: 1, b: 2, c: 3}); //=> ['a', 'b', 'c']\n */\n\n\nvar keys = typeof Object.keys === 'function' && !hasArgsEnumBug ?\n/*#__PURE__*/\n_curry1(function keys(obj) {\n  return Object(obj) !== obj ? [] : Object.keys(obj);\n}) :\n/*#__PURE__*/\n_curry1(function keys(obj) {\n  if (Object(obj) !== obj) {\n    return [];\n  }\n\n  var prop, nIdx;\n  var ks = [];\n\n  var checkArgsLength = hasArgsEnumBug && _isArguments(obj);\n\n  for (prop in obj) {\n    if (_has(prop, obj) && (!checkArgsLength || prop !== 'length')) {\n      ks[ks.length] = prop;\n    }\n  }\n\n  if (hasEnumBug) {\n    nIdx = nonEnumerableProps.length - 1;\n\n    while (nIdx >= 0) {\n      prop = nonEnumerableProps[nIdx];\n\n      if (_has(prop, obj) && !contains(ks, prop)) {\n        ks[ks.length] = prop;\n      }\n\n      nIdx -= 1;\n    }\n  }\n\n  return ks;\n});\nexport default keys;","import { lift } from '../util/lift';\nexport function finalize(callback) {\n    return function (source) { return lift(source, new FinallyOperator(callback)); };\n}\nvar FinallyOperator = (function () {\n    function FinallyOperator(callback) {\n        this.callback = callback;\n    }\n    FinallyOperator.prototype.call = function (subscriber, source) {\n        var subscription = source.subscribe(subscriber);\n        subscription.add(this.callback);\n        return subscription;\n    };\n    return FinallyOperator;\n}());\n//# sourceMappingURL=finalize.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { noop } from '../util/noop';\nimport { isFunction } from '../util/isFunction';\nimport { lift } from '../util/lift';\nexport function tap(nextOrObserver, error, complete) {\n    return function tapOperatorFunction(source) {\n        return lift(source, new TapOperator(nextOrObserver, error, complete));\n    };\n}\nvar TapOperator = (function () {\n    function TapOperator(nextOrObserver, error, complete) {\n        this.nextOrObserver = nextOrObserver;\n        this.error = error;\n        this.complete = complete;\n    }\n    TapOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));\n    };\n    return TapOperator;\n}());\nvar TapSubscriber = (function (_super) {\n    __extends(TapSubscriber, _super);\n    function TapSubscriber(destination, observerOrNext, error, complete) {\n        var _this = _super.call(this, destination) || this;\n        _this._tapNext = noop;\n        _this._tapError = noop;\n        _this._tapComplete = noop;\n        _this._tapError = error || noop;\n        _this._tapComplete = complete || noop;\n        if (isFunction(observerOrNext)) {\n            _this._context = _this;\n            _this._tapNext = observerOrNext;\n        }\n        else if (observerOrNext) {\n            _this._context = observerOrNext;\n            _this._tapNext = observerOrNext.next || noop;\n            _this._tapError = observerOrNext.error || noop;\n            _this._tapComplete = observerOrNext.complete || noop;\n        }\n        return _this;\n    }\n    TapSubscriber.prototype._next = function (value) {\n        try {\n            this._tapNext.call(this._context, value);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(value);\n    };\n    TapSubscriber.prototype._error = function (err) {\n        try {\n            this._tapError.call(this._context, err);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.error(err);\n    };\n    TapSubscriber.prototype._complete = function () {\n        try {\n            this._tapComplete.call(this._context);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        return this.destination.complete();\n    };\n    return TapSubscriber;\n}(Subscriber));\n//# sourceMappingURL=tap.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function scan(accumulator, seed) {\n    var hasSeed = false;\n    if (arguments.length >= 2) {\n        hasSeed = true;\n    }\n    return function scanOperatorFunction(source) {\n        return lift(source, new ScanOperator(accumulator, seed, hasSeed));\n    };\n}\nvar ScanOperator = (function () {\n    function ScanOperator(accumulator, seed, hasSeed) {\n        if (hasSeed === void 0) { hasSeed = false; }\n        this.accumulator = accumulator;\n        this.seed = seed;\n        this.hasSeed = hasSeed;\n    }\n    ScanOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ScanSubscriber(subscriber, this.accumulator, this.seed, this.hasSeed));\n    };\n    return ScanOperator;\n}());\nvar ScanSubscriber = (function (_super) {\n    __extends(ScanSubscriber, _super);\n    function ScanSubscriber(destination, accumulator, _state, _hasState) {\n        var _this = _super.call(this, destination) || this;\n        _this.accumulator = accumulator;\n        _this._state = _state;\n        _this._hasState = _hasState;\n        _this.index = 0;\n        return _this;\n    }\n    ScanSubscriber.prototype._next = function (value) {\n        var destination = this.destination;\n        if (!this._hasState) {\n            this._state = value;\n            this._hasState = true;\n            destination.next(value);\n        }\n        else {\n            var index = this.index++;\n            var result = void 0;\n            try {\n                result = this.accumulator(this._state, value, index);\n            }\n            catch (err) {\n                destination.error(err);\n                return;\n            }\n            this._state = result;\n            destination.next(result);\n        }\n    };\n    return ScanSubscriber;\n}(Subscriber));\n//# sourceMappingURL=scan.js.map","import { EMPTY } from './observable/empty';\nimport { of } from './observable/of';\nimport { throwError } from './observable/throwError';\nexport var NotificationKind;\n(function (NotificationKind) {\n    NotificationKind[\"NEXT\"] = \"N\";\n    NotificationKind[\"ERROR\"] = \"E\";\n    NotificationKind[\"COMPLETE\"] = \"C\";\n})(NotificationKind || (NotificationKind = {}));\nvar Notification = (function () {\n    function Notification(kind, value, error) {\n        this.kind = kind;\n        this.value = value;\n        this.error = error;\n        this.hasValue = kind === 'N';\n    }\n    Notification.prototype.observe = function (observer) {\n        var _a, _b, _c;\n        switch (this.kind) {\n            case 'N':\n                (_a = observer.next) === null || _a === void 0 ? void 0 : _a.call(observer, this.value);\n                break;\n            case 'E':\n                (_b = observer.error) === null || _b === void 0 ? void 0 : _b.call(observer, this.error);\n                break;\n            case 'C':\n                (_c = observer.complete) === null || _c === void 0 ? void 0 : _c.call(observer);\n                break;\n        }\n    };\n    Notification.prototype.do = function (next, error, complete) {\n        var kind = this.kind;\n        switch (kind) {\n            case 'N':\n                next === null || next === void 0 ? void 0 : next(this.value);\n                break;\n            case 'E':\n                error === null || error === void 0 ? void 0 : error(this.error);\n                break;\n            case 'C':\n                complete === null || complete === void 0 ? void 0 : complete();\n                break;\n        }\n    };\n    Notification.prototype.accept = function (nextOrObserver, error, complete) {\n        if (nextOrObserver && typeof nextOrObserver.next === 'function') {\n            return this.observe(nextOrObserver);\n        }\n        else {\n            return this.do(nextOrObserver, error, complete);\n        }\n    };\n    Notification.prototype.toObservable = function () {\n        var kind = this.kind;\n        switch (kind) {\n            case 'N':\n                return of(this.value);\n            case 'E':\n                return throwError(this.error);\n            case 'C':\n                return EMPTY;\n        }\n        throw new Error('unexpected notification kind value');\n    };\n    Notification.createNext = function (value) {\n        return new Notification('N', value);\n    };\n    Notification.createError = function (err) {\n        return new Notification('E', undefined, err);\n    };\n    Notification.createComplete = function () {\n        return Notification.completeNotification;\n    };\n    Notification.completeNotification = new Notification('C');\n    return Notification;\n}());\nexport { Notification };\nexport function observeNotification(notification, observer) {\n    var _a, _b, _c;\n    if (typeof notification.kind !== 'string') {\n        throw new TypeError('Invalid notification, missing \"kind\"');\n    }\n    switch (notification.kind) {\n        case 'N':\n            (_a = observer.next) === null || _a === void 0 ? void 0 : _a.call(observer, notification.value);\n            break;\n        case 'E':\n            (_b = observer.error) === null || _b === void 0 ? void 0 : _b.call(observer, notification.error);\n            break;\n        case 'C':\n            (_c = observer.complete) === null || _c === void 0 ? void 0 : _c.call(observer);\n            break;\n    }\n}\nexport var COMPLETE_NOTIFICATION = (function () { return createNotification('C', undefined, undefined); })();\nexport function errorNotification(error) {\n    return createNotification('E', undefined, error);\n}\nexport function nextNotification(value) {\n    return createNotification('N', value, undefined);\n}\nexport function createNotification(kind, value, error) {\n    return {\n        kind: kind,\n        value: value,\n        error: error,\n    };\n}\n//# sourceMappingURL=Notification.js.map","import { Observable } from '../Observable';\nexport function throwError(error, scheduler) {\n    if (!scheduler) {\n        return new Observable(function (subscriber) { return subscriber.error(error); });\n    }\n    else {\n        return new Observable(function (subscriber) { return scheduler.schedule(dispatch, 0, { error: error, subscriber: subscriber }); });\n    }\n}\nfunction dispatch(_a) {\n    var error = _a.error, subscriber = _a.subscriber;\n    subscriber.error(error);\n}\n//# sourceMappingURL=throwError.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { observeNotification, COMPLETE_NOTIFICATION, nextNotification, errorNotification } from '../Notification';\nimport { lift } from '../util/lift';\nexport function observeOn(scheduler, delay) {\n    if (delay === void 0) { delay = 0; }\n    return function observeOnOperatorFunction(source) {\n        return lift(source, new ObserveOnOperator(scheduler, delay));\n    };\n}\nvar ObserveOnOperator = (function () {\n    function ObserveOnOperator(scheduler, delay) {\n        if (delay === void 0) { delay = 0; }\n        this.scheduler = scheduler;\n        this.delay = delay;\n    }\n    ObserveOnOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ObserveOnSubscriber(subscriber, this.scheduler, this.delay));\n    };\n    return ObserveOnOperator;\n}());\nvar ObserveOnSubscriber = (function (_super) {\n    __extends(ObserveOnSubscriber, _super);\n    function ObserveOnSubscriber(destination, scheduler, delay) {\n        if (delay === void 0) { delay = 0; }\n        var _this = _super.call(this, destination) || this;\n        _this.scheduler = scheduler;\n        _this.delay = delay;\n        return _this;\n    }\n    ObserveOnSubscriber.dispatch = function (arg) {\n        var notification = arg.notification, destination = arg.destination;\n        observeNotification(notification, destination);\n        this.unsubscribe();\n    };\n    ObserveOnSubscriber.prototype.scheduleMessage = function (notification) {\n        var destination = this.destination;\n        destination.add(this.scheduler.schedule(ObserveOnSubscriber.dispatch, this.delay, {\n            notification: notification,\n            destination: destination,\n        }));\n    };\n    ObserveOnSubscriber.prototype._next = function (value) {\n        this.scheduleMessage(nextNotification(value));\n    };\n    ObserveOnSubscriber.prototype._error = function (error) {\n        this.scheduleMessage(errorNotification(error));\n        this.unsubscribe();\n    };\n    ObserveOnSubscriber.prototype._complete = function () {\n        this.scheduleMessage(COMPLETE_NOTIFICATION);\n        this.unsubscribe();\n    };\n    return ObserveOnSubscriber;\n}(Subscriber));\n//# sourceMappingURL=observeOn.js.map","import { __extends } from \"tslib\";\nimport { AsyncAction } from './AsyncAction';\nvar AnimationFrameAction = (function (_super) {\n    __extends(AnimationFrameAction, _super);\n    function AnimationFrameAction(scheduler, work) {\n        var _this = _super.call(this, scheduler, work) || this;\n        _this.scheduler = scheduler;\n        _this.work = work;\n        return _this;\n    }\n    AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (delay !== null && delay > 0) {\n            return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);\n        }\n        scheduler.actions.push(this);\n        return scheduler.scheduled || (scheduler.scheduled = requestAnimationFrame(function () { return scheduler.flush(undefined); }));\n    };\n    AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay);\n        }\n        if (scheduler.actions.length === 0) {\n            cancelAnimationFrame(id);\n            scheduler.scheduled = undefined;\n        }\n        return undefined;\n    };\n    return AnimationFrameAction;\n}(AsyncAction));\nexport { AnimationFrameAction };\n//# sourceMappingURL=AnimationFrameAction.js.map","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport var animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\nexport var animationFrame = animationFrameScheduler;\n//# sourceMappingURL=animationFrame.js.map","import { __extends } from \"tslib\";\nimport { AsyncScheduler } from './AsyncScheduler';\nvar AnimationFrameScheduler = (function (_super) {\n    __extends(AnimationFrameScheduler, _super);\n    function AnimationFrameScheduler() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    AnimationFrameScheduler.prototype.flush = function (action) {\n        this.active = true;\n        this.scheduled = undefined;\n        var actions = this.actions;\n        var error;\n        var index = -1;\n        action = action || actions.shift();\n        var count = actions.length;\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (++index < count && (action = actions.shift()));\n        this.active = false;\n        if (error) {\n            while (++index < count && (action = actions.shift())) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    };\n    return AnimationFrameScheduler;\n}(AsyncScheduler));\nexport { AnimationFrameScheduler };\n//# sourceMappingURL=AnimationFrameScheduler.js.map","(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (factory());\n}(this, (function () { 'use strict';\n\n  /**\n   * Applies the :focus-visible polyfill at the given scope.\n   * A scope in this case is either the top-level Document or a Shadow Root.\n   *\n   * @param {(Document|ShadowRoot)} scope\n   * @see https://github.com/WICG/focus-visible\n   */\n  function applyFocusVisiblePolyfill(scope) {\n    var hadKeyboardEvent = true;\n    var hadFocusVisibleRecently = false;\n    var hadFocusVisibleRecentlyTimeout = null;\n\n    var inputTypesWhitelist = {\n      text: true,\n      search: true,\n      url: true,\n      tel: true,\n      email: true,\n      password: true,\n      number: true,\n      date: true,\n      month: true,\n      week: true,\n      time: true,\n      datetime: true,\n      'datetime-local': true\n    };\n\n    /**\n     * Helper function for legacy browsers and iframes which sometimes focus\n     * elements like document, body, and non-interactive SVG.\n     * @param {Element} el\n     */\n    function isValidFocusTarget(el) {\n      if (\n        el &&\n        el !== document &&\n        el.nodeName !== 'HTML' &&\n        el.nodeName !== 'BODY' &&\n        'classList' in el &&\n        'contains' in el.classList\n      ) {\n        return true;\n      }\n      return false;\n    }\n\n    /**\n     * Computes whether the given element should automatically trigger the\n     * `focus-visible` class being added, i.e. whether it should always match\n     * `:focus-visible` when focused.\n     * @param {Element} el\n     * @return {boolean}\n     */\n    function focusTriggersKeyboardModality(el) {\n      var type = el.type;\n      var tagName = el.tagName;\n\n      if (tagName === 'INPUT' && inputTypesWhitelist[type] && !el.readOnly) {\n        return true;\n      }\n\n      if (tagName === 'TEXTAREA' && !el.readOnly) {\n        return true;\n      }\n\n      if (el.isContentEditable) {\n        return true;\n      }\n\n      return false;\n    }\n\n    /**\n     * Add the `focus-visible` class to the given element if it was not added by\n     * the author.\n     * @param {Element} el\n     */\n    function addFocusVisibleClass(el) {\n      if (el.classList.contains('focus-visible')) {\n        return;\n      }\n      el.classList.add('focus-visible');\n      el.setAttribute('data-focus-visible-added', '');\n    }\n\n    /**\n     * Remove the `focus-visible` class from the given element if it was not\n     * originally added by the author.\n     * @param {Element} el\n     */\n    function removeFocusVisibleClass(el) {\n      if (!el.hasAttribute('data-focus-visible-added')) {\n        return;\n      }\n      el.classList.remove('focus-visible');\n      el.removeAttribute('data-focus-visible-added');\n    }\n\n    /**\n     * If the most recent user interaction was via the keyboard;\n     * and the key press did not include a meta, alt/option, or control key;\n     * then the modality is keyboard. Otherwise, the modality is not keyboard.\n     * Apply `focus-visible` to any current active element and keep track\n     * of our keyboard modality state with `hadKeyboardEvent`.\n     * @param {KeyboardEvent} e\n     */\n    function onKeyDown(e) {\n      if (e.metaKey || e.altKey || e.ctrlKey) {\n        return;\n      }\n\n      if (isValidFocusTarget(scope.activeElement)) {\n        addFocusVisibleClass(scope.activeElement);\n      }\n\n      hadKeyboardEvent = true;\n    }\n\n    /**\n     * If at any point a user clicks with a pointing device, ensure that we change\n     * the modality away from keyboard.\n     * This avoids the situation where a user presses a key on an already focused\n     * element, and then clicks on a different element, focusing it with a\n     * pointing device, while we still think we're in keyboard modality.\n     * @param {Event} e\n     */\n    function onPointerDown(e) {\n      hadKeyboardEvent = false;\n    }\n\n    /**\n     * On `focus`, add the `focus-visible` class to the target if:\n     * - the target received focus as a result of keyboard navigation, or\n     * - the event target is an element that will likely require interaction\n     *   via the keyboard (e.g. a text box)\n     * @param {Event} e\n     */\n    function onFocus(e) {\n      // Prevent IE from focusing the document or HTML element.\n      if (!isValidFocusTarget(e.target)) {\n        return;\n      }\n\n      if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n        addFocusVisibleClass(e.target);\n      }\n    }\n\n    /**\n     * On `blur`, remove the `focus-visible` class from the target.\n     * @param {Event} e\n     */\n    function onBlur(e) {\n      if (!isValidFocusTarget(e.target)) {\n        return;\n      }\n\n      if (\n        e.target.classList.contains('focus-visible') ||\n        e.target.hasAttribute('data-focus-visible-added')\n      ) {\n        // To detect a tab/window switch, we look for a blur event followed\n        // rapidly by a visibility change.\n        // If we don't see a visibility change within 100ms, it's probably a\n        // regular focus change.\n        hadFocusVisibleRecently = true;\n        window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n        hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n          hadFocusVisibleRecently = false;\n        }, 100);\n        removeFocusVisibleClass(e.target);\n      }\n    }\n\n    /**\n     * If the user changes tabs, keep track of whether or not the previously\n     * focused element had .focus-visible.\n     * @param {Event} e\n     */\n    function onVisibilityChange(e) {\n      if (document.visibilityState === 'hidden') {\n        // If the tab becomes active again, the browser will handle calling focus\n        // on the element (Safari actually calls it twice).\n        // If this tab change caused a blur on an element with focus-visible,\n        // re-apply the class when the user switches back to the tab.\n        if (hadFocusVisibleRecently) {\n          hadKeyboardEvent = true;\n        }\n        addInitialPointerMoveListeners();\n      }\n    }\n\n    /**\n     * Add a group of listeners to detect usage of any pointing devices.\n     * These listeners will be added when the polyfill first loads, and anytime\n     * the window is blurred, so that they are active when the window regains\n     * focus.\n     */\n    function addInitialPointerMoveListeners() {\n      document.addEventListener('mousemove', onInitialPointerMove);\n      document.addEventListener('mousedown', onInitialPointerMove);\n      document.addEventListener('mouseup', onInitialPointerMove);\n      document.addEventListener('pointermove', onInitialPointerMove);\n      document.addEventListener('pointerdown', onInitialPointerMove);\n      document.addEventListener('pointerup', onInitialPointerMove);\n      document.addEventListener('touchmove', onInitialPointerMove);\n      document.addEventListener('touchstart', onInitialPointerMove);\n      document.addEventListener('touchend', onInitialPointerMove);\n    }\n\n    function removeInitialPointerMoveListeners() {\n      document.removeEventListener('mousemove', onInitialPointerMove);\n      document.removeEventListener('mousedown', onInitialPointerMove);\n      document.removeEventListener('mouseup', onInitialPointerMove);\n      document.removeEventListener('pointermove', onInitialPointerMove);\n      document.removeEventListener('pointerdown', onInitialPointerMove);\n      document.removeEventListener('pointerup', onInitialPointerMove);\n      document.removeEventListener('touchmove', onInitialPointerMove);\n      document.removeEventListener('touchstart', onInitialPointerMove);\n      document.removeEventListener('touchend', onInitialPointerMove);\n    }\n\n    /**\n     * When the polfyill first loads, assume the user is in keyboard modality.\n     * If any event is received from a pointing device (e.g. mouse, pointer,\n     * touch), turn off keyboard modality.\n     * This accounts for situations where focus enters the page from the URL bar.\n     * @param {Event} e\n     */\n    function onInitialPointerMove(e) {\n      // Work around a Safari quirk that fires a mousemove on <html> whenever the\n      // window blurs, even if you're tabbing out of the page. ¯\\_(ツ)_/¯\n      if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n        return;\n      }\n\n      hadKeyboardEvent = false;\n      removeInitialPointerMoveListeners();\n    }\n\n    // For some kinds of state, we are interested in changes at the global scope\n    // only. For example, global pointer input, global key presses and global\n    // visibility change should affect the state at every scope:\n    document.addEventListener('keydown', onKeyDown, true);\n    document.addEventListener('mousedown', onPointerDown, true);\n    document.addEventListener('pointerdown', onPointerDown, true);\n    document.addEventListener('touchstart', onPointerDown, true);\n    document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n    addInitialPointerMoveListeners();\n\n    // For focus and blur, we specifically care about state changes in the local\n    // scope. This is because focus / blur events that originate from within a\n    // shadow root are not re-dispatched from the host element if it was already\n    // the active element in its own scope:\n    scope.addEventListener('focus', onFocus, true);\n    scope.addEventListener('blur', onBlur, true);\n\n    // We detect that a node is a ShadowRoot by ensuring that it is a\n    // DocumentFragment and also has a host property. This check covers native\n    // implementation and polyfill implementation transparently. If we only cared\n    // about the native implementation, we could just check if the scope was\n    // an instance of a ShadowRoot.\n    if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n      // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n      // have a root element to add a class to. So, we add this attribute to the\n      // host element instead:\n      scope.host.setAttribute('data-js-focus-visible', '');\n    } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n      document.documentElement.classList.add('js-focus-visible');\n      document.documentElement.setAttribute('data-js-focus-visible', '');\n    }\n  }\n\n  // It is important to wrap all references to global window and document in\n  // these checks to support server-side rendering use cases\n  // @see https://github.com/WICG/focus-visible/issues/199\n  if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n    // Make the polyfill helper globally available. This can be used as a signal\n    // to interested libraries that wish to coordinate with the polyfill for e.g.,\n    // applying the polyfill to a shadow root:\n    window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n    // Notify interested libraries of the polyfill's presence, in case the\n    // polyfill was loaded lazily:\n    var event;\n\n    try {\n      event = new CustomEvent('focus-visible-polyfill-ready');\n    } catch (error) {\n      // IE11 does not support using CustomEvent as a constructor directly:\n      event = document.createEvent('CustomEvent');\n      event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n    }\n\n    window.dispatchEvent(event);\n  }\n\n  if (typeof document !== 'undefined') {\n    // Apply the polyfill to the global document, so that no JavaScript\n    // coordination is required to use the polyfill in the top-level document:\n    applyFocusVisiblePolyfill(document);\n  }\n\n})));\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","import { ReplaySubject } from '../ReplaySubject';\nimport { lift } from '../util/lift';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n    var config;\n    if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n        config = configOrBufferSize;\n    }\n    else {\n        config = {\n            bufferSize: configOrBufferSize,\n            windowTime: windowTime,\n            refCount: false,\n            scheduler: scheduler\n        };\n    }\n    return function (source) { return lift(source, shareReplayOperator(config)); };\n}\nfunction shareReplayOperator(_a) {\n    var _b = _a.bufferSize, bufferSize = _b === void 0 ? Infinity : _b, _c = _a.windowTime, windowTime = _c === void 0 ? Infinity : _c, useRefCount = _a.refCount, scheduler = _a.scheduler;\n    var subject;\n    var refCount = 0;\n    var subscription;\n    return function shareReplayOperation(source) {\n        refCount++;\n        var innerSub;\n        if (!subject) {\n            subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n            innerSub = subject.subscribe(this);\n            subscription = source.subscribe({\n                next: function (value) { subject.next(value); },\n                error: function (err) {\n                    var dest = subject;\n                    subscription = undefined;\n                    subject = undefined;\n                    dest.error(err);\n                },\n                complete: function () {\n                    subscription = undefined;\n                    subject.complete();\n                },\n            });\n            if (subscription.closed) {\n                subscription = undefined;\n            }\n        }\n        else {\n            innerSub = subject.subscribe(this);\n        }\n        this.add(function () {\n            refCount--;\n            innerSub.unsubscribe();\n            if (useRefCount && refCount === 0 && subscription) {\n                subscription.unsubscribe();\n                subscription = undefined;\n                subject = undefined;\n            }\n        });\n    };\n}\n//# sourceMappingURL=shareReplay.js.map","import { distinctUntilChanged } from './distinctUntilChanged';\nexport function distinctUntilKeyChanged(key, compare) {\n    return distinctUntilChanged(function (x, y) { return compare ? compare(x[key], y[key]) : x[key] === y[key]; });\n}\n//# sourceMappingURL=distinctUntilKeyChanged.js.map","import { __extends, __spreadArrays } from \"tslib\";\nimport { ComplexOuterSubscriber, innerSubscribe, ComplexInnerSubscriber } from '../innerSubscribe';\nimport { lift } from '../util/lift';\nexport function withLatestFrom() {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    return function (source) {\n        var project;\n        if (typeof args[args.length - 1] === 'function') {\n            project = args.pop();\n        }\n        var observables = args;\n        return lift(source, new WithLatestFromOperator(observables, project));\n    };\n}\nvar WithLatestFromOperator = (function () {\n    function WithLatestFromOperator(observables, project) {\n        this.observables = observables;\n        this.project = project;\n    }\n    WithLatestFromOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));\n    };\n    return WithLatestFromOperator;\n}());\nvar WithLatestFromSubscriber = (function (_super) {\n    __extends(WithLatestFromSubscriber, _super);\n    function WithLatestFromSubscriber(destination, observables, project) {\n        var _this = _super.call(this, destination) || this;\n        _this.project = project;\n        _this.toRespond = [];\n        var len = observables.length;\n        _this.values = new Array(len);\n        for (var i = 0; i < len; i++) {\n            _this.toRespond.push(i);\n        }\n        for (var i = 0; i < len; i++) {\n            var observable = observables[i];\n            _this.add(innerSubscribe(observable, new ComplexInnerSubscriber(_this, undefined, i)));\n        }\n        return _this;\n    }\n    WithLatestFromSubscriber.prototype.notifyNext = function (_outerValue, innerValue, outerIndex) {\n        this.values[outerIndex] = innerValue;\n        var toRespond = this.toRespond;\n        if (toRespond.length > 0) {\n            var found = toRespond.indexOf(outerIndex);\n            if (found !== -1) {\n                toRespond.splice(found, 1);\n            }\n        }\n    };\n    WithLatestFromSubscriber.prototype.notifyComplete = function () {\n    };\n    WithLatestFromSubscriber.prototype._next = function (value) {\n        if (this.toRespond.length === 0) {\n            var args = __spreadArrays([value], this.values);\n            if (this.project) {\n                this._tryProject(args);\n            }\n            else {\n                this.destination.next(args);\n            }\n        }\n    };\n    WithLatestFromSubscriber.prototype._tryProject = function (args) {\n        var result;\n        try {\n            result = this.project.apply(this, args);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return WithLatestFromSubscriber;\n}(ComplexOuterSubscriber));\n//# sourceMappingURL=withLatestFrom.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function bufferCount(bufferSize, startBufferEvery) {\n    if (startBufferEvery === void 0) { startBufferEvery = null; }\n    return function bufferCountOperatorFunction(source) {\n        return lift(source, new BufferCountOperator(bufferSize, startBufferEvery));\n    };\n}\nvar BufferCountOperator = (function () {\n    function BufferCountOperator(bufferSize, startBufferEvery) {\n        this.bufferSize = bufferSize;\n        this.startBufferEvery = startBufferEvery;\n        if (!startBufferEvery || bufferSize === startBufferEvery) {\n            this.subscriberClass = BufferCountSubscriber;\n        }\n        else {\n            this.subscriberClass = BufferSkipCountSubscriber;\n        }\n    }\n    BufferCountOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new this.subscriberClass(subscriber, this.bufferSize, this.startBufferEvery));\n    };\n    return BufferCountOperator;\n}());\nvar BufferCountSubscriber = (function (_super) {\n    __extends(BufferCountSubscriber, _super);\n    function BufferCountSubscriber(destination, bufferSize) {\n        var _this = _super.call(this, destination) || this;\n        _this.bufferSize = bufferSize;\n        _this.buffer = [];\n        return _this;\n    }\n    BufferCountSubscriber.prototype._next = function (value) {\n        var buffer = this.buffer;\n        buffer.push(value);\n        if (buffer.length == this.bufferSize) {\n            this.destination.next(buffer);\n            this.buffer = [];\n        }\n    };\n    BufferCountSubscriber.prototype._complete = function () {\n        var buffer = this.buffer;\n        if (buffer.length > 0) {\n            this.destination.next(buffer);\n        }\n        _super.prototype._complete.call(this);\n    };\n    return BufferCountSubscriber;\n}(Subscriber));\nvar BufferSkipCountSubscriber = (function (_super) {\n    __extends(BufferSkipCountSubscriber, _super);\n    function BufferSkipCountSubscriber(destination, bufferSize, startBufferEvery) {\n        var _this = _super.call(this, destination) || this;\n        _this.bufferSize = bufferSize;\n        _this.startBufferEvery = startBufferEvery;\n        _this.buffers = [];\n        _this.count = 0;\n        return _this;\n    }\n    BufferSkipCountSubscriber.prototype._next = function (value) {\n        var _a = this, bufferSize = _a.bufferSize, startBufferEvery = _a.startBufferEvery, buffers = _a.buffers, count = _a.count;\n        this.count++;\n        if (count % startBufferEvery === 0) {\n            buffers.push([]);\n        }\n        for (var i = buffers.length; i--;) {\n            var buffer = buffers[i];\n            buffer.push(value);\n            if (buffer.length === bufferSize) {\n                buffers.splice(i, 1);\n                this.destination.next(buffer);\n            }\n        }\n    };\n    BufferSkipCountSubscriber.prototype._complete = function () {\n        var _a = this, buffers = _a.buffers, destination = _a.destination;\n        while (buffers.length > 0) {\n            var buffer = buffers.shift();\n            if (buffer.length > 0) {\n                destination.next(buffer);\n            }\n        }\n        _super.prototype._complete.call(this);\n    };\n    return BufferSkipCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=bufferCount.js.map","import _curry1 from \"./internal/_curry1.js\";\nimport _isString from \"./internal/_isString.js\";\n/**\n * Returns a new list or string with the elements or characters in reverse\n * order.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category List\n * @sig [a] -> [a]\n * @sig String -> String\n * @param {Array|String} list\n * @return {Array|String}\n * @example\n *\n *      R.reverse([1, 2, 3]);  //=> [3, 2, 1]\n *      R.reverse([1, 2]);     //=> [2, 1]\n *      R.reverse([1]);        //=> [1]\n *      R.reverse([]);         //=> []\n *\n *      R.reverse('abc');      //=> 'cba'\n *      R.reverse('ab');       //=> 'ba'\n *      R.reverse('a');        //=> 'a'\n *      R.reverse('');         //=> ''\n */\n\nvar reverse =\n/*#__PURE__*/\n_curry1(function reverse(list) {\n  return _isString(list) ? list.split('').reverse().join('') : Array.prototype.slice.call(list, 0).reverse();\n});\n\nexport default reverse;","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n    return mergeAll(1);\n}\n//# sourceMappingURL=concatAll.js.map","import { of } from './of';\nimport { concatAll } from '../operators/concatAll';\nexport function concat() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    return concatAll()(of.apply(void 0, observables));\n}\n//# sourceMappingURL=concat.js.map","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith() {\n    var values = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        values[_i] = arguments[_i];\n    }\n    var scheduler = values[values.length - 1];\n    if (isScheduler(scheduler)) {\n        values.pop();\n        return function (source) { return concat(values, source, scheduler); };\n    }\n    else {\n        return function (source) { return concat(values, source); };\n    }\n}\n//# sourceMappingURL=startWith.js.map","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nexport function fromEvent(target, eventName, options, resultSelector) {\n    if (isFunction(options)) {\n        resultSelector = options;\n        options = undefined;\n    }\n    if (resultSelector) {\n        return fromEvent(target, eventName, options).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));\n    }\n    return new Observable(function (subscriber) {\n        function handler(e) {\n            if (arguments.length > 1) {\n                subscriber.next(Array.prototype.slice.call(arguments));\n            }\n            else {\n                subscriber.next(e);\n            }\n        }\n        setupSubscription(target, eventName, handler, subscriber, options);\n    });\n}\nfunction setupSubscription(sourceObj, eventName, handler, subscriber, options) {\n    var unsubscribe;\n    if (isEventTarget(sourceObj)) {\n        var source_1 = sourceObj;\n        sourceObj.addEventListener(eventName, handler, options);\n        unsubscribe = function () { return source_1.removeEventListener(eventName, handler, options); };\n    }\n    else if (isJQueryStyleEventEmitter(sourceObj)) {\n        var source_2 = sourceObj;\n        sourceObj.on(eventName, handler);\n        unsubscribe = function () { return source_2.off(eventName, handler); };\n    }\n    else if (isNodeStyleEventEmitter(sourceObj)) {\n        var source_3 = sourceObj;\n        sourceObj.addListener(eventName, handler);\n        unsubscribe = function () { return source_3.removeListener(eventName, handler); };\n    }\n    else if (sourceObj && sourceObj.length) {\n        for (var i = 0, len = sourceObj.length; i < len; i++) {\n            setupSubscription(sourceObj[i], eventName, handler, subscriber, options);\n        }\n    }\n    else {\n        throw new TypeError('Invalid event target');\n    }\n    subscriber.add(unsubscribe);\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n    return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n//# sourceMappingURL=fromEvent.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function mapTo(value) {\n    return function (source) { return lift(source, new MapToOperator(value)); };\n}\nvar MapToOperator = (function () {\n    function MapToOperator(value) {\n        this.value = value;\n    }\n    MapToOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new MapToSubscriber(subscriber, this.value));\n    };\n    return MapToOperator;\n}());\nvar MapToSubscriber = (function (_super) {\n    __extends(MapToSubscriber, _super);\n    function MapToSubscriber(destination, value) {\n        var _this = _super.call(this, destination) || this;\n        _this.value = value;\n        return _this;\n    }\n    MapToSubscriber.prototype._next = function (x) {\n        this.destination.next(this.value);\n    };\n    return MapToSubscriber;\n}(Subscriber));\n//# sourceMappingURL=mapTo.js.map","import { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nexport function merge() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    var concurrent = Infinity;\n    var scheduler = undefined;\n    var last = observables[observables.length - 1];\n    if (isScheduler(last)) {\n        scheduler = observables.pop();\n        if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {\n            concurrent = observables.pop();\n        }\n    }\n    else if (typeof last === 'number') {\n        concurrent = observables.pop();\n    }\n    if (!scheduler && observables.length === 1 && observables[0] instanceof Observable) {\n        return observables[0];\n    }\n    return mergeAll(concurrent)(fromArray(observables, scheduler));\n}\n//# sourceMappingURL=merge.js.map","import { Observable } from '../Observable';\nimport { noop } from '../util/noop';\nexport var NEVER = new Observable(noop);\nexport function never() {\n    return NEVER;\n}\n//# sourceMappingURL=never.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function filter(predicate, thisArg) {\n    return function filterOperatorFunction(source) {\n        return lift(source, new FilterOperator(predicate, thisArg));\n    };\n}\nvar FilterOperator = (function () {\n    function FilterOperator(predicate, thisArg) {\n        this.predicate = predicate;\n        this.thisArg = thisArg;\n    }\n    FilterOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));\n    };\n    return FilterOperator;\n}());\nvar FilterSubscriber = (function (_super) {\n    __extends(FilterSubscriber, _super);\n    function FilterSubscriber(destination, predicate, thisArg) {\n        var _this = _super.call(this, destination) || this;\n        _this.predicate = predicate;\n        _this.thisArg = thisArg;\n        _this.count = 0;\n        return _this;\n    }\n    FilterSubscriber.prototype._next = function (value) {\n        var result;\n        try {\n            result = this.predicate.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        if (result) {\n            this.destination.next(value);\n        }\n    };\n    return FilterSubscriber;\n}(Subscriber));\n//# sourceMappingURL=filter.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nvar BehaviorSubject = (function (_super) {\n    __extends(BehaviorSubject, _super);\n    function BehaviorSubject(_value) {\n        var _this = _super.call(this) || this;\n        _this._value = _value;\n        return _this;\n    }\n    Object.defineProperty(BehaviorSubject.prototype, \"value\", {\n        get: function () {\n            return this.getValue();\n        },\n        enumerable: false,\n        configurable: true\n    });\n    BehaviorSubject.prototype._subscribe = function (subscriber) {\n        var subscription = _super.prototype._subscribe.call(this, subscriber);\n        if (subscription && !subscription.closed) {\n            subscriber.next(this._value);\n        }\n        return subscription;\n    };\n    BehaviorSubject.prototype.getValue = function () {\n        if (this.hasError) {\n            throw this.thrownError;\n        }\n        else if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return this._value;\n        }\n    };\n    BehaviorSubject.prototype.next = function (value) {\n        _super.prototype.next.call(this, this._value = value);\n    };\n    return BehaviorSubject;\n}(Subject));\nexport { BehaviorSubject };\n//# sourceMappingURL=BehaviorSubject.js.map","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nexport function fromEventPattern(addHandler, removeHandler, resultSelector) {\n    if (resultSelector) {\n        return fromEventPattern(addHandler, removeHandler).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));\n    }\n    return new Observable(function (subscriber) {\n        var handler = function () {\n            var e = [];\n            for (var _i = 0; _i < arguments.length; _i++) {\n                e[_i] = arguments[_i];\n            }\n            return subscriber.next(e.length === 1 ? e[0] : e);\n        };\n        var retValue;\n        try {\n            retValue = addHandler(handler);\n        }\n        catch (err) {\n            subscriber.error(err);\n            return undefined;\n        }\n        if (!isFunction(removeHandler)) {\n            return undefined;\n        }\n        return function () { return removeHandler(handler, retValue); };\n    });\n}\n//# sourceMappingURL=fromEventPattern.js.map","import { map } from './map';\nexport function pluck() {\n    var properties = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        properties[_i] = arguments[_i];\n    }\n    var length = properties.length;\n    if (length === 0) {\n        throw new Error('list of properties cannot be empty.');\n    }\n    return map(function (x) {\n        var currentProp = x;\n        for (var i = 0; i < length; i++) {\n            var p = currentProp === null || currentProp === void 0 ? void 0 : currentProp[properties[i]];\n            if (typeof p !== 'undefined') {\n                currentProp = p;\n            }\n            else {\n                return undefined;\n            }\n        }\n        return currentProp;\n    });\n}\n//# sourceMappingURL=pluck.js.map","import { __extends } from \"tslib\";\nimport { lift } from '../util/lift';\nimport { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';\nexport var defaultThrottleConfig = {\n    leading: true,\n    trailing: false\n};\nexport function throttle(durationSelector, config) {\n    if (config === void 0) { config = defaultThrottleConfig; }\n    return function (source) { return lift(source, new ThrottleOperator(durationSelector, !!config.leading, !!config.trailing)); };\n}\nvar ThrottleOperator = (function () {\n    function ThrottleOperator(durationSelector, leading, trailing) {\n        this.durationSelector = durationSelector;\n        this.leading = leading;\n        this.trailing = trailing;\n    }\n    ThrottleOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ThrottleSubscriber(subscriber, this.durationSelector, this.leading, this.trailing));\n    };\n    return ThrottleOperator;\n}());\nvar ThrottleSubscriber = (function (_super) {\n    __extends(ThrottleSubscriber, _super);\n    function ThrottleSubscriber(destination, durationSelector, _leading, _trailing) {\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        _this.durationSelector = durationSelector;\n        _this._leading = _leading;\n        _this._trailing = _trailing;\n        _this._sendValue = null;\n        _this._hasValue = false;\n        return _this;\n    }\n    ThrottleSubscriber.prototype._next = function (value) {\n        this._hasValue = true;\n        this._sendValue = value;\n        if (!this._throttled) {\n            if (this._leading) {\n                this.send();\n            }\n            else {\n                this.throttle(value);\n            }\n        }\n    };\n    ThrottleSubscriber.prototype.send = function () {\n        var _a = this, _hasValue = _a._hasValue, _sendValue = _a._sendValue;\n        if (_hasValue) {\n            this.destination.next(_sendValue);\n            this.throttle(_sendValue);\n        }\n        this._hasValue = false;\n        this._sendValue = null;\n    };\n    ThrottleSubscriber.prototype.throttle = function (value) {\n        var result;\n        try {\n            result = this.durationSelector(value);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.add(this._throttled = innerSubscribe(result, new SimpleInnerSubscriber(this)));\n    };\n    ThrottleSubscriber.prototype.throttlingDone = function () {\n        var _a = this, _throttled = _a._throttled, _trailing = _a._trailing;\n        if (_throttled) {\n            _throttled.unsubscribe();\n        }\n        this._throttled = null;\n        if (_trailing) {\n            this.send();\n        }\n    };\n    ThrottleSubscriber.prototype.notifyNext = function () {\n        this.throttlingDone();\n    };\n    ThrottleSubscriber.prototype.notifyComplete = function () {\n        this.throttlingDone();\n    };\n    return ThrottleSubscriber;\n}(SimpleOuterSubscriber));\n//# sourceMappingURL=throttle.js.map","import { switchMap } from './switchMap';\nexport function switchMapTo(innerObservable, resultSelector) {\n    return resultSelector ? switchMap(function () { return innerObservable; }, resultSelector) : switchMap(function () { return innerObservable; });\n}\n//# sourceMappingURL=switchMapTo.js.map","import { __extends } from \"tslib\";\nimport { lift } from '../util/lift';\nimport { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function sample(notifier) {\n    return function (source) { return lift(source, new SampleOperator(notifier)); };\n}\nvar SampleOperator = (function () {\n    function SampleOperator(notifier) {\n        this.notifier = notifier;\n    }\n    SampleOperator.prototype.call = function (subscriber, source) {\n        var sampleSubscriber = new SampleSubscriber(subscriber);\n        var subscription = source.subscribe(sampleSubscriber);\n        subscription.add(innerSubscribe(this.notifier, new SimpleInnerSubscriber(sampleSubscriber)));\n        return subscription;\n    };\n    return SampleOperator;\n}());\nvar SampleSubscriber = (function (_super) {\n    __extends(SampleSubscriber, _super);\n    function SampleSubscriber() {\n        var _this = _super !== null && _super.apply(this, arguments) || this;\n        _this.hasValue = false;\n        return _this;\n    }\n    SampleSubscriber.prototype._next = function (value) {\n        this.value = value;\n        this.hasValue = true;\n    };\n    SampleSubscriber.prototype.notifyNext = function () {\n        this.emitValue();\n    };\n    SampleSubscriber.prototype.notifyComplete = function () {\n        this.emitValue();\n    };\n    SampleSubscriber.prototype.emitValue = function () {\n        if (this.hasValue) {\n            this.hasValue = false;\n            this.destination.next(this.value);\n        }\n    };\n    return SampleSubscriber;\n}(SimpleOuterSubscriber));\n//# sourceMappingURL=sample.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function skip(count) {\n    return function (source) { return lift(source, new SkipOperator(count)); };\n}\nvar SkipOperator = (function () {\n    function SkipOperator(total) {\n        this.total = total;\n    }\n    SkipOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new SkipSubscriber(subscriber, this.total));\n    };\n    return SkipOperator;\n}());\nvar SkipSubscriber = (function (_super) {\n    __extends(SkipSubscriber, _super);\n    function SkipSubscriber(destination, total) {\n        var _this = _super.call(this, destination) || this;\n        _this.total = total;\n        _this.count = 0;\n        return _this;\n    }\n    SkipSubscriber.prototype._next = function (x) {\n        if (++this.count > this.total) {\n            this.destination.next(x);\n        }\n    };\n    return SkipSubscriber;\n}(Subscriber));\n//# sourceMappingURL=skip.js.map","import { __extends } from \"tslib\";\nimport { lift } from '../util/lift';\nimport { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';\nexport function catchError(selector) {\n    return function catchErrorOperatorFunction(source) {\n        var operator = new CatchOperator(selector);\n        var caught = lift(source, operator);\n        operator.caught = caught;\n        return caught;\n    };\n}\nvar CatchOperator = (function () {\n    function CatchOperator(selector) {\n        this.selector = selector;\n    }\n    CatchOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));\n    };\n    return CatchOperator;\n}());\nvar CatchSubscriber = (function (_super) {\n    __extends(CatchSubscriber, _super);\n    function CatchSubscriber(destination, selector, caught) {\n        var _this = _super.call(this, destination) || this;\n        _this.selector = selector;\n        _this.caught = caught;\n        return _this;\n    }\n    CatchSubscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            var result = void 0;\n            try {\n                result = this.selector(err, this.caught);\n            }\n            catch (err2) {\n                _super.prototype.error.call(this, err2);\n                return;\n            }\n            this._unsubscribeAndRecycle();\n            var innerSubscriber = new SimpleInnerSubscriber(this);\n            this.add(innerSubscriber);\n            innerSubscribe(result, innerSubscriber);\n        }\n    };\n    return CatchSubscriber;\n}(SimpleOuterSubscriber));\n//# sourceMappingURL=catchError.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { async } from '../scheduler/async';\nimport { lift } from '../util/lift';\nexport function debounceTime(dueTime, scheduler) {\n    if (scheduler === void 0) { scheduler = async; }\n    return function (source) { return lift(source, new DebounceTimeOperator(dueTime, scheduler)); };\n}\nvar DebounceTimeOperator = (function () {\n    function DebounceTimeOperator(dueTime, scheduler) {\n        this.dueTime = dueTime;\n        this.scheduler = scheduler;\n    }\n    DebounceTimeOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler));\n    };\n    return DebounceTimeOperator;\n}());\nvar DebounceTimeSubscriber = (function (_super) {\n    __extends(DebounceTimeSubscriber, _super);\n    function DebounceTimeSubscriber(destination, dueTime, scheduler) {\n        var _this = _super.call(this, destination) || this;\n        _this.dueTime = dueTime;\n        _this.scheduler = scheduler;\n        _this.debouncedSubscription = null;\n        _this.lastValue = null;\n        _this.hasValue = false;\n        return _this;\n    }\n    DebounceTimeSubscriber.prototype._next = function (value) {\n        this.clearDebounce();\n        this.lastValue = value;\n        this.hasValue = true;\n        this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this));\n    };\n    DebounceTimeSubscriber.prototype._complete = function () {\n        this.debouncedNext();\n        this.destination.complete();\n    };\n    DebounceTimeSubscriber.prototype.debouncedNext = function () {\n        this.clearDebounce();\n        if (this.hasValue) {\n            var lastValue = this.lastValue;\n            this.lastValue = null;\n            this.hasValue = false;\n            this.destination.next(lastValue);\n        }\n    };\n    DebounceTimeSubscriber.prototype.clearDebounce = function () {\n        var debouncedSubscription = this.debouncedSubscription;\n        if (debouncedSubscription !== null) {\n            this.remove(debouncedSubscription);\n            debouncedSubscription.unsubscribe();\n            this.debouncedSubscription = null;\n        }\n    };\n    return DebounceTimeSubscriber;\n}(Subscriber));\nfunction dispatchNext(subscriber) {\n    subscriber.debouncedNext();\n}\n//# sourceMappingURL=debounceTime.js.map","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n    if (typeof resultSelector === 'function') {\n        return mergeMap(project, resultSelector, 1);\n    }\n    return mergeMap(project, 1);\n}\n//# sourceMappingURL=concatMap.js.map","import { defer } from './defer';\nimport { EMPTY } from './empty';\nexport function iif(condition, trueResult, falseResult) {\n    if (trueResult === void 0) { trueResult = EMPTY; }\n    if (falseResult === void 0) { falseResult = EMPTY; }\n    return defer(function () { return condition() ? trueResult : falseResult; });\n}\n//# sourceMappingURL=iif.js.map","import _curry2 from \"./internal/_curry2.js\";\n/**\n * Sorts the list according to the supplied function.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Relation\n * @sig Ord b => (a -> b) -> [a] -> [a]\n * @param {Function} fn\n * @param {Array} list The list to sort.\n * @return {Array} A new list sorted by the keys generated by `fn`.\n * @example\n *\n *      const sortByFirstItem = R.sortBy(R.prop(0));\n *      const pairs = [[-1, 1], [-2, 2], [-3, 3]];\n *      sortByFirstItem(pairs); //=> [[-3, 3], [-2, 2], [-1, 1]]\n *\n *      const sortByNameCaseInsensitive = R.sortBy(R.compose(R.toLower, R.prop('name')));\n *      const alice = {\n *        name: 'ALICE',\n *        age: 101\n *      };\n *      const bob = {\n *        name: 'Bob',\n *        age: -10\n *      };\n *      const clara = {\n *        name: 'clara',\n *        age: 314.159\n *      };\n *      const people = [clara, bob, alice];\n *      sortByNameCaseInsensitive(people); //=> [alice, bob, clara]\n */\n\nvar sortBy =\n/*#__PURE__*/\n_curry2(function sortBy(fn, list) {\n  return Array.prototype.slice.call(list, 0).sort(function (a, b) {\n    var aa = fn(a);\n    var bb = fn(b);\n    return aa < bb ? -1 : aa > bb ? 1 : 0;\n  });\n});\n\nexport default sortBy;","import _curry1 from \"./internal/_curry1.js\";\nimport keys from \"./keys.js\";\n/**\n * Returns a list of all the enumerable own properties of the supplied object.\n * Note that the order of the output array is not guaranteed across different\n * JS platforms.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @sig {k: v} -> [v]\n * @param {Object} obj The object to extract values from\n * @return {Array} An array of the values of the object's own properties.\n * @see R.valuesIn, R.keys\n * @example\n *\n *      R.values({a: 1, b: 2, c: 3}); //=> [1, 2, 3]\n */\n\nvar values =\n/*#__PURE__*/\n_curry1(function values(obj) {\n  var props = keys(obj);\n  var len = props.length;\n  var vals = [];\n  var idx = 0;\n\n  while (idx < len) {\n    vals[idx] = obj[props[idx]];\n    idx += 1;\n  }\n\n  return vals;\n});\n\nexport default values;","/**\n * Determine if the passed argument is an integer.\n *\n * @private\n * @param {*} n\n * @category Type\n * @return {Boolean}\n */\nexport default Number.isInteger || function _isInteger(n) {\n  return n << 0 === n;\n};","import _curry2 from \"./internal/_curry2.js\";\nimport _isString from \"./internal/_isString.js\";\n/**\n * Returns the nth element of the given list or string. If n is negative the\n * element at index length + n is returned.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category List\n * @sig Number -> [a] -> a | Undefined\n * @sig Number -> String -> String\n * @param {Number} offset\n * @param {*} list\n * @return {*}\n * @example\n *\n *      const list = ['foo', 'bar', 'baz', 'quux'];\n *      R.nth(1, list); //=> 'bar'\n *      R.nth(-1, list); //=> 'quux'\n *      R.nth(-99, list); //=> undefined\n *\n *      R.nth(2, 'abc'); //=> 'c'\n *      R.nth(3, 'abc'); //=> ''\n * @symb R.nth(-1, [a, b, c]) = c\n * @symb R.nth(0, [a, b, c]) = a\n * @symb R.nth(1, [a, b, c]) = b\n */\n\nvar nth =\n/*#__PURE__*/\n_curry2(function nth(offset, list) {\n  var idx = offset < 0 ? list.length + offset : offset;\n  return _isString(list) ? list.charAt(idx) : list[idx];\n});\n\nexport default nth;","import _curry2 from \"./internal/_curry2.js\";\nimport _isInteger from \"./internal/_isInteger.js\";\nimport nth from \"./nth.js\";\n/**\n * Retrieves the values at given paths of an object.\n *\n * @func\n * @memberOf R\n * @since v0.27.1\n * @category Object\n * @typedefn Idx = [String | Int]\n * @sig [Idx] -> {a} -> [a | Undefined]\n * @param {Array} pathsArray The array of paths to be fetched.\n * @param {Object} obj The object to retrieve the nested properties from.\n * @return {Array} A list consisting of values at paths specified by \"pathsArray\".\n * @see R.path\n * @example\n *\n *      R.paths([['a', 'b'], ['p', 0, 'q']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, 3]\n *      R.paths([['a', 'b'], ['p', 'r']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, undefined]\n */\n\nvar paths =\n/*#__PURE__*/\n_curry2(function paths(pathsArray, obj) {\n  return pathsArray.map(function (paths) {\n    var val = obj;\n    var idx = 0;\n    var p;\n\n    while (idx < paths.length) {\n      if (val == null) {\n        return;\n      }\n\n      p = paths[idx];\n      val = _isInteger(p) ? nth(p, val) : val[p];\n      idx += 1;\n    }\n\n    return val;\n  });\n});\n\nexport default paths;","import _curry2 from \"./internal/_curry2.js\";\nimport paths from \"./paths.js\";\n/**\n * Retrieve the value at a given path.\n *\n * @func\n * @memberOf R\n * @since v0.2.0\n * @category Object\n * @typedefn Idx = String | Int\n * @sig [Idx] -> {a} -> a | Undefined\n * @param {Array} path The path to use.\n * @param {Object} obj The object to retrieve the nested property from.\n * @return {*} The data at `path`.\n * @see R.prop, R.nth\n * @example\n *\n *      R.path(['a', 'b'], {a: {b: 2}}); //=> 2\n *      R.path(['a', 'b'], {c: {b: 2}}); //=> undefined\n *      R.path(['a', 'b', 0], {a: {b: [1, 2, 3]}}); //=> 1\n *      R.path(['a', 'b', -2], {a: {b: [1, 2, 3]}}); //=> 2\n */\n\nvar path =\n/*#__PURE__*/\n_curry2(function path(pathAr, obj) {\n  return paths([pathAr], obj)[0];\n});\n\nexport default path;","import _curry2 from \"./internal/_curry2.js\";\nimport path from \"./path.js\";\n/**\n * Returns a function that when supplied an object returns the indicated\n * property of that object, if it exists.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @typedefn Idx = String | Int\n * @sig Idx -> {s: a} -> a | Undefined\n * @param {String|Number} p The property name or array index\n * @param {Object} obj The object to query\n * @return {*} The value at `obj.p`.\n * @see R.path, R.nth\n * @example\n *\n *      R.prop('x', {x: 100}); //=> 100\n *      R.prop('x', {}); //=> undefined\n *      R.prop(0, [100]); //=> 100\n *      R.compose(R.inc, R.prop('x'))({ x: 3 }) //=> 4\n */\n\nvar prop =\n/*#__PURE__*/\n_curry2(function prop(p, obj) {\n  return path([p], obj);\n});\n\nexport default prop;","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function refCount() {\n    return function refCountOperatorFunction(source) {\n        return lift(source, new RefCountOperator());\n    };\n}\nvar RefCountOperator = (function () {\n    function RefCountOperator() {\n    }\n    RefCountOperator.prototype.call = function (subscriber, connectable) {\n        connectable._refCount++;\n        var refCounter = new RefCountSubscriber(subscriber, connectable);\n        var subscription = connectable.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    };\n    return RefCountOperator;\n}());\nvar RefCountSubscriber = (function (_super) {\n    __extends(RefCountSubscriber, _super);\n    function RefCountSubscriber(destination, connectable) {\n        var _this = _super.call(this, destination) || this;\n        _this.connectable = connectable;\n        _this.connection = null;\n        return _this;\n    }\n    RefCountSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        var refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        var connection = this.connection;\n        var sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    };\n    return RefCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=refCount.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nvar ConnectableObservable = (function (_super) {\n    __extends(ConnectableObservable, _super);\n    function ConnectableObservable(source, subjectFactory) {\n        var _this = _super.call(this) || this;\n        _this.source = source;\n        _this.subjectFactory = subjectFactory;\n        _this._refCount = 0;\n        _this._isComplete = false;\n        return _this;\n    }\n    ConnectableObservable.prototype._subscribe = function (subscriber) {\n        return this.getSubject().subscribe(subscriber);\n    };\n    ConnectableObservable.prototype.getSubject = function () {\n        var subject = this._subject;\n        if (!subject || subject.isStopped) {\n            this._subject = this.subjectFactory();\n        }\n        return this._subject;\n    };\n    ConnectableObservable.prototype.connect = function () {\n        var connection = this._connection;\n        if (!connection) {\n            this._isComplete = false;\n            connection = this._connection = new Subscription();\n            connection.add(this.source\n                .subscribe(new ConnectableSubscriber(this.getSubject(), this)));\n            if (connection.closed) {\n                this._connection = null;\n                connection = Subscription.EMPTY;\n            }\n        }\n        return connection;\n    };\n    ConnectableObservable.prototype.refCount = function () {\n        return higherOrderRefCount()(this);\n    };\n    return ConnectableObservable;\n}(Observable));\nexport { ConnectableObservable };\nexport var connectableObservableDescriptor = (function () {\n    var connectableProto = ConnectableObservable.prototype;\n    return {\n        operator: { value: null },\n        _refCount: { value: 0, writable: true },\n        _subject: { value: null, writable: true },\n        _connection: { value: null, writable: true },\n        _subscribe: { value: connectableProto._subscribe },\n        _isComplete: { value: connectableProto._isComplete, writable: true },\n        getSubject: { value: connectableProto.getSubject },\n        connect: { value: connectableProto.connect },\n        refCount: { value: connectableProto.refCount }\n    };\n})();\nvar ConnectableSubscriber = (function (_super) {\n    __extends(ConnectableSubscriber, _super);\n    function ConnectableSubscriber(destination, connectable) {\n        var _this = _super.call(this) || this;\n        _this.destination = destination;\n        _this.connectable = connectable;\n        return _this;\n    }\n    ConnectableSubscriber.prototype._error = function (err) {\n        this._unsubscribe();\n        _super.prototype._error.call(this, err);\n    };\n    ConnectableSubscriber.prototype._complete = function () {\n        this.connectable._isComplete = true;\n        this._unsubscribe();\n        _super.prototype._complete.call(this);\n    };\n    ConnectableSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (connectable) {\n            this.connectable = null;\n            var connection = connectable._connection;\n            connectable._refCount = 0;\n            connectable._subject = null;\n            connectable._connection = null;\n            if (connection) {\n                connection.unsubscribe();\n            }\n        }\n    };\n    return ConnectableSubscriber;\n}(Subscriber));\nvar RefCountOperator = (function () {\n    function RefCountOperator(connectable) {\n        this.connectable = connectable;\n    }\n    RefCountOperator.prototype.call = function (subscriber, source) {\n        var connectable = this.connectable;\n        connectable._refCount++;\n        var refCounter = new RefCountSubscriber(subscriber, connectable);\n        var subscription = source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    };\n    return RefCountOperator;\n}());\nvar RefCountSubscriber = (function (_super) {\n    __extends(RefCountSubscriber, _super);\n    function RefCountSubscriber(destination, connectable) {\n        var _this = _super.call(this, destination) || this;\n        _this.connectable = connectable;\n        return _this;\n    }\n    RefCountSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        var refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        var connection = this.connection;\n        var sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    };\n    return RefCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=ConnectableObservable.js.map","import { connectableObservableDescriptor } from '../observable/ConnectableObservable';\nimport { lift } from '../util/lift';\nexport function multicast(subjectOrSubjectFactory, selector) {\n    return function multicastOperatorFunction(source) {\n        var subjectFactory;\n        if (typeof subjectOrSubjectFactory === 'function') {\n            subjectFactory = subjectOrSubjectFactory;\n        }\n        else {\n            subjectFactory = function subjectFactory() {\n                return subjectOrSubjectFactory;\n            };\n        }\n        if (typeof selector === 'function') {\n            return lift(source, new MulticastOperator(subjectFactory, selector));\n        }\n        var connectable = Object.create(source, connectableObservableDescriptor);\n        connectable.source = source;\n        connectable.subjectFactory = subjectFactory;\n        return connectable;\n    };\n}\nvar MulticastOperator = (function () {\n    function MulticastOperator(subjectFactory, selector) {\n        this.subjectFactory = subjectFactory;\n        this.selector = selector;\n    }\n    MulticastOperator.prototype.call = function (subscriber, source) {\n        var selector = this.selector;\n        var subject = this.subjectFactory();\n        var subscription = selector(subject).subscribe(subscriber);\n        subscription.add(source.subscribe(subject));\n        return subscription;\n    };\n    return MulticastOperator;\n}());\nexport { MulticastOperator };\n//# sourceMappingURL=multicast.js.map","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n    return new Subject();\n}\nexport function share() {\n    return function (source) { return refCount()(multicast(shareSubjectFactory)(source)); };\n}\n//# sourceMappingURL=share.js.map","export default function _identity(x) {\n  return x;\n}","import _curry1 from \"./internal/_curry1.js\";\nimport _identity from \"./internal/_identity.js\";\n/**\n * A function that does nothing but return the parameter supplied to it. Good\n * as a default or placeholder function.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Function\n * @sig a -> a\n * @param {*} x The value to return.\n * @return {*} The input value, `x`.\n * @example\n *\n *      R.identity(1); //=> 1\n *\n *      const obj = {};\n *      R.identity(obj) === obj; //=> true\n * @symb R.identity(a) = a\n */\n\nvar identity =\n/*#__PURE__*/\n_curry1(_identity);\n\nexport default identity;","var ArgumentOutOfRangeErrorImpl = (function () {\n    function ArgumentOutOfRangeErrorImpl() {\n        Error.call(this);\n        this.message = 'argument out of range';\n        this.name = 'ArgumentOutOfRangeError';\n        return this;\n    }\n    ArgumentOutOfRangeErrorImpl.prototype = Object.create(Error.prototype);\n    return ArgumentOutOfRangeErrorImpl;\n})();\nexport var ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;\n//# sourceMappingURL=ArgumentOutOfRangeError.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { EMPTY } from '../observable/empty';\nimport { lift } from '../util/lift';\nexport function take(count) {\n    if (isNaN(count)) {\n        throw new TypeError(\"'count' is not a number\");\n    }\n    if (count < 0) {\n        throw new ArgumentOutOfRangeError;\n    }\n    return function (source) { return (count === 0) ? EMPTY : lift(source, new TakeOperator(count)); };\n}\nvar TakeOperator = (function () {\n    function TakeOperator(count) {\n        this.count = count;\n    }\n    TakeOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new TakeSubscriber(subscriber, this.count));\n    };\n    return TakeOperator;\n}());\nvar TakeSubscriber = (function (_super) {\n    __extends(TakeSubscriber, _super);\n    function TakeSubscriber(destination, count) {\n        var _this = _super.call(this, destination) || this;\n        _this.count = count;\n        _this._valueCount = 0;\n        return _this;\n    }\n    TakeSubscriber.prototype._next = function (value) {\n        var total = this.count;\n        var count = ++this._valueCount;\n        if (count <= total) {\n            this.destination.next(value);\n            if (count === total) {\n                this.destination.complete();\n                this.unsubscribe();\n            }\n        }\n    };\n    return TakeSubscriber;\n}(Subscriber));\n//# sourceMappingURL=take.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../../Observable';\nimport { Subscriber } from '../../Subscriber';\nfunction isFormData(body) {\n    return typeof FormData !== 'undefined' && body instanceof FormData;\n}\nvar AjaxObservable = (function (_super) {\n    __extends(AjaxObservable, _super);\n    function AjaxObservable(urlOrRequest) {\n        var _this = _super.call(this) || this;\n        var request = {\n            async: true,\n            createXHR: function () { return new XMLHttpRequest(); },\n            crossDomain: true,\n            withCredentials: false,\n            headers: {},\n            method: 'GET',\n            responseType: 'json',\n            timeout: 0,\n        };\n        if (typeof urlOrRequest === 'string') {\n            request.url = urlOrRequest;\n        }\n        else {\n            for (var prop in urlOrRequest) {\n                if (urlOrRequest.hasOwnProperty(prop)) {\n                    request[prop] = urlOrRequest[prop];\n                }\n            }\n        }\n        _this.request = request;\n        return _this;\n    }\n    AjaxObservable.prototype._subscribe = function (subscriber) {\n        return new AjaxSubscriber(subscriber, this.request);\n    };\n    return AjaxObservable;\n}(Observable));\nexport { AjaxObservable };\nvar AjaxSubscriber = (function (_super) {\n    __extends(AjaxSubscriber, _super);\n    function AjaxSubscriber(destination, request) {\n        var _this = _super.call(this, destination) || this;\n        _this.request = request;\n        _this.done = false;\n        var headers = (request.headers = request.headers || {});\n        if (!request.crossDomain && !_this.getHeader(headers, 'X-Requested-With')) {\n            headers['X-Requested-With'] = 'XMLHttpRequest';\n        }\n        var contentTypeHeader = _this.getHeader(headers, 'Content-Type');\n        if (!contentTypeHeader && typeof request.body !== 'undefined' && !isFormData(request.body)) {\n            headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';\n        }\n        request.body = _this.serializeBody(request.body, _this.getHeader(request.headers, 'Content-Type'));\n        _this.send();\n        return _this;\n    }\n    AjaxSubscriber.prototype.next = function (e) {\n        this.done = true;\n        var destination = this.destination;\n        var result;\n        try {\n            result = new AjaxResponse(e, this.xhr, this.request);\n        }\n        catch (err) {\n            return destination.error(err);\n        }\n        destination.next(result);\n    };\n    AjaxSubscriber.prototype.send = function () {\n        var _a = this, request = _a.request, _b = _a.request, user = _b.user, method = _b.method, url = _b.url, async = _b.async, password = _b.password, headers = _b.headers, body = _b.body;\n        try {\n            var xhr = (this.xhr = request.createXHR());\n            this.setupEvents(xhr, request);\n            if (user) {\n                xhr.open(method, url, async, user, password);\n            }\n            else {\n                xhr.open(method, url, async);\n            }\n            if (async) {\n                xhr.timeout = request.timeout;\n                xhr.responseType = request.responseType;\n            }\n            if ('withCredentials' in xhr) {\n                xhr.withCredentials = !!request.withCredentials;\n            }\n            this.setHeaders(xhr, headers);\n            if (body) {\n                xhr.send(body);\n            }\n            else {\n                xhr.send();\n            }\n        }\n        catch (err) {\n            this.error(err);\n        }\n    };\n    AjaxSubscriber.prototype.serializeBody = function (body, contentType) {\n        if (!body || typeof body === 'string') {\n            return body;\n        }\n        else if (isFormData(body)) {\n            return body;\n        }\n        if (contentType) {\n            var splitIndex = contentType.indexOf(';');\n            if (splitIndex !== -1) {\n                contentType = contentType.substring(0, splitIndex);\n            }\n        }\n        switch (contentType) {\n            case 'application/x-www-form-urlencoded':\n                return Object.keys(body)\n                    .map(function (key) { return encodeURIComponent(key) + \"=\" + encodeURIComponent(body[key]); })\n                    .join('&');\n            case 'application/json':\n                return JSON.stringify(body);\n            default:\n                return body;\n        }\n    };\n    AjaxSubscriber.prototype.setHeaders = function (xhr, headers) {\n        for (var key in headers) {\n            if (headers.hasOwnProperty(key)) {\n                xhr.setRequestHeader(key, headers[key]);\n            }\n        }\n    };\n    AjaxSubscriber.prototype.getHeader = function (headers, headerName) {\n        for (var key in headers) {\n            if (key.toLowerCase() === headerName.toLowerCase()) {\n                return headers[key];\n            }\n        }\n        return undefined;\n    };\n    AjaxSubscriber.prototype.setupEvents = function (xhr, request) {\n        var _this = this;\n        var progressSubscriber = request.progressSubscriber;\n        xhr.ontimeout = function (e) {\n            var _a;\n            (_a = progressSubscriber === null || progressSubscriber === void 0 ? void 0 : progressSubscriber.error) === null || _a === void 0 ? void 0 : _a.call(progressSubscriber, e);\n            var error;\n            try {\n                error = new AjaxTimeoutError(xhr, request);\n            }\n            catch (err) {\n                error = err;\n            }\n            _this.error(error);\n        };\n        if (progressSubscriber) {\n            xhr.upload.onprogress = function (e) {\n                var _a;\n                (_a = progressSubscriber.next) === null || _a === void 0 ? void 0 : _a.call(progressSubscriber, e);\n            };\n        }\n        xhr.onerror = function (e) {\n            var _a;\n            (_a = progressSubscriber === null || progressSubscriber === void 0 ? void 0 : progressSubscriber.error) === null || _a === void 0 ? void 0 : _a.call(progressSubscriber, e);\n            _this.error(new AjaxError('ajax error', xhr, request));\n        };\n        xhr.onload = function (e) {\n            var _a, _b;\n            if (xhr.status < 400) {\n                (_a = progressSubscriber === null || progressSubscriber === void 0 ? void 0 : progressSubscriber.complete) === null || _a === void 0 ? void 0 : _a.call(progressSubscriber);\n                _this.next(e);\n                _this.complete();\n            }\n            else {\n                (_b = progressSubscriber === null || progressSubscriber === void 0 ? void 0 : progressSubscriber.error) === null || _b === void 0 ? void 0 : _b.call(progressSubscriber, e);\n                var error = void 0;\n                try {\n                    error = new AjaxError('ajax error ' + xhr.status, xhr, request);\n                }\n                catch (err) {\n                    error = err;\n                }\n                _this.error(error);\n            }\n        };\n    };\n    AjaxSubscriber.prototype.unsubscribe = function () {\n        var _a = this, done = _a.done, xhr = _a.xhr;\n        if (!done && xhr && xhr.readyState !== 4 && typeof xhr.abort === 'function') {\n            xhr.abort();\n        }\n        _super.prototype.unsubscribe.call(this);\n    };\n    return AjaxSubscriber;\n}(Subscriber));\nexport { AjaxSubscriber };\nvar AjaxResponse = (function () {\n    function AjaxResponse(originalEvent, xhr, request) {\n        this.originalEvent = originalEvent;\n        this.xhr = xhr;\n        this.request = request;\n        this.status = xhr.status;\n        this.responseType = xhr.responseType || request.responseType;\n        this.response = getXHRResponse(xhr);\n    }\n    return AjaxResponse;\n}());\nexport { AjaxResponse };\nvar AjaxErrorImpl = (function () {\n    function AjaxErrorImpl(message, xhr, request) {\n        Error.call(this);\n        this.message = message;\n        this.name = 'AjaxError';\n        this.xhr = xhr;\n        this.request = request;\n        this.status = xhr.status;\n        this.responseType = xhr.responseType;\n        var response;\n        try {\n            response = getXHRResponse(xhr);\n        }\n        catch (err) {\n            response = xhr.responseText;\n        }\n        this.response = response;\n        return this;\n    }\n    AjaxErrorImpl.prototype = Object.create(Error.prototype);\n    return AjaxErrorImpl;\n})();\nexport var AjaxError = AjaxErrorImpl;\nfunction getXHRResponse(xhr) {\n    switch (xhr.responseType) {\n        case 'json': {\n            if ('response' in xhr) {\n                return xhr.response;\n            }\n            else {\n                var ieXHR = xhr;\n                return JSON.parse(ieXHR.responseText);\n            }\n        }\n        case 'document':\n            return xhr.responseXML;\n        case 'text':\n        default: {\n            if ('response' in xhr) {\n                return xhr.response;\n            }\n            else {\n                var ieXHR = xhr;\n                return ieXHR.responseText;\n            }\n        }\n    }\n}\nvar AjaxTimeoutErrorImpl = (function () {\n    function AjaxTimeoutErrorImpl(xhr, request) {\n        AjaxError.call(this, 'ajax timeout', xhr, request);\n        this.name = 'AjaxTimeoutError';\n        return this;\n    }\n    AjaxTimeoutErrorImpl.prototype = Object.create(AjaxError.prototype);\n    return AjaxTimeoutErrorImpl;\n})();\nexport var AjaxTimeoutError = AjaxTimeoutErrorImpl;\n//# sourceMappingURL=AjaxObservable.js.map","import { AjaxObservable } from './AjaxObservable';\nimport { map } from '../../operators/map';\nfunction ajaxGet(url, headers) {\n    return ajax({ method: 'GET', url: url, headers: headers });\n}\nfunction ajaxPost(url, body, headers) {\n    return ajax({ method: 'POST', url: url, body: body, headers: headers });\n}\nfunction ajaxDelete(url, headers) {\n    return ajax({ method: 'DELETE', url: url, headers: headers });\n}\nfunction ajaxPut(url, body, headers) {\n    return ajax({ method: 'PUT', url: url, body: body, headers: headers });\n}\nfunction ajaxPatch(url, body, headers) {\n    return ajax({ method: 'PATCH', url: url, body: body, headers: headers });\n}\nvar mapResponse = map(function (x) { return x.response; });\nfunction ajaxGetJSON(url, headers) {\n    return mapResponse(ajax({\n        method: 'GET',\n        url: url,\n        responseType: 'json',\n        headers: headers,\n    }));\n}\nexport var ajax = (function () {\n    var create = function (urlOrRequest) {\n        return new AjaxObservable(urlOrRequest);\n    };\n    create.get = ajaxGet;\n    create.post = ajaxPost;\n    create.delete = ajaxDelete;\n    create.put = ajaxPut;\n    create.patch = ajaxPatch;\n    create.getJSON = ajaxGetJSON;\n    return create;\n})();\n//# sourceMappingURL=ajax.js.map","import { __extends } from \"tslib\";\nimport { async } from '../scheduler/async';\nimport { isValidDate } from '../util/isDate';\nimport { Subscriber } from '../Subscriber';\nimport { lift } from '../util/lift';\nexport function delay(delay, scheduler) {\n    if (scheduler === void 0) { scheduler = async; }\n    var delayFor = isValidDate(delay) ? +delay - scheduler.now() : Math.abs(delay);\n    return function (source) { return lift(source, new DelayOperator(delayFor, scheduler)); };\n}\nvar DelayOperator = (function () {\n    function DelayOperator(delay, scheduler) {\n        this.delay = delay;\n        this.scheduler = scheduler;\n    }\n    DelayOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DelaySubscriber(subscriber, this.delay, this.scheduler));\n    };\n    return DelayOperator;\n}());\nvar DelaySubscriber = (function (_super) {\n    __extends(DelaySubscriber, _super);\n    function DelaySubscriber(destination, delay, scheduler) {\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        _this.delay = delay;\n        _this.scheduler = scheduler;\n        _this.queue = [];\n        _this.active = false;\n        return _this;\n    }\n    DelaySubscriber.dispatch = function (state) {\n        var source = state.source;\n        var queue = source.queue;\n        var scheduler = state.scheduler;\n        var destination = state.destination;\n        while (queue.length > 0 && queue[0].time - scheduler.now() <= 0) {\n            destination.next(queue.shift().value);\n        }\n        if (queue.length > 0) {\n            var delay_1 = Math.max(0, queue[0].time - scheduler.now());\n            this.schedule(state, delay_1);\n        }\n        else if (source.isStopped) {\n            source.destination.complete();\n            source.active = false;\n        }\n        else {\n            this.unsubscribe();\n            source.active = false;\n        }\n    };\n    DelaySubscriber.prototype._schedule = function (scheduler) {\n        this.active = true;\n        var destination = this.destination;\n        destination.add(scheduler.schedule(DelaySubscriber.dispatch, this.delay, {\n            source: this,\n            destination: destination,\n            scheduler: scheduler,\n        }));\n    };\n    DelaySubscriber.prototype._next = function (value) {\n        var scheduler = this.scheduler;\n        var message = new DelayMessage(scheduler.now() + this.delay, value);\n        this.queue.push(message);\n        if (this.active === false) {\n            this._schedule(scheduler);\n        }\n    };\n    DelaySubscriber.prototype._error = function (err) {\n        this.queue.length = 0;\n        this.destination.error(err);\n        this.unsubscribe();\n    };\n    DelaySubscriber.prototype._complete = function () {\n        if (this.queue.length === 0) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    };\n    return DelaySubscriber;\n}(Subscriber));\nvar DelayMessage = (function () {\n    function DelayMessage(time, value) {\n        this.time = time;\n        this.value = value;\n    }\n    return DelayMessage;\n}());\n//# sourceMappingURL=delay.js.map","export function isValidDate(value) {\n    return value instanceof Date && !isNaN(value);\n}\n//# sourceMappingURL=isDate.js.map"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/javascripts/vendor.d710d30a.min.js b/assets/javascripts/vendor.d710d30a.min.js
deleted file mode 100644
index f31a6daa9..000000000
--- a/assets/javascripts/vendor.d710d30a.min.js
+++ /dev/null
@@ -1,31 +0,0 @@
-(window.webpackJsonp=window.webpackJsonp||[]).push([[1],[function(t,e,n){"use strict";n.d(e,"f",(function(){return i})),n.d(e,"a",(function(){return o})),n.d(e,"e",(function(){return u})),n.d(e,"g",(function(){return s})),n.d(e,"k",(function(){return c})),n.d(e,"h",(function(){return a})),n.d(e,"i",(function(){return f})),n.d(e,"j",(function(){return h})),n.d(e,"d",(function(){return l})),n.d(e,"b",(function(){return p})),n.d(e,"c",(function(){return d}));
-/*! *****************************************************************************
-Copyright (c) Microsoft Corporation.
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
-REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
-INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? 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(function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, exports) {\r\n    for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) __createBinding(exports, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","import { __extends } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { empty as emptyObserver } from './Observer';\nimport { Subscription } from './Subscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nimport { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nvar Subscriber = (function (_super) {\n    __extends(Subscriber, _super);\n    function Subscriber(destinationOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this.syncErrorValue = null;\n        _this.syncErrorThrown = false;\n        _this.syncErrorThrowable = false;\n        _this.isStopped = false;\n        switch (arguments.length) {\n            case 0:\n                _this.destination = emptyObserver;\n                break;\n            case 1:\n                if (!destinationOrNext) {\n                    _this.destination = emptyObserver;\n                    break;\n                }\n                if (typeof destinationOrNext === 'object') {\n                    if (destinationOrNext instanceof Subscriber) {\n                        _this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n                        _this.destination = destinationOrNext;\n                        destinationOrNext.add(_this);\n                    }\n                    else {\n                        _this.syncErrorThrowable = true;\n                        _this.destination = new SafeSubscriber(_this, destinationOrNext);\n                    }\n                    break;\n                }\n            default:\n                _this.syncErrorThrowable = true;\n                _this.destination = new SafeSubscriber(_this, destinationOrNext, error, complete);\n                break;\n        }\n        return _this;\n    }\n    Subscriber.prototype[rxSubscriberSymbol] = function () { return this; };\n    Subscriber.create = function (next, error, complete) {\n        var subscriber = new Subscriber(next, error, complete);\n        subscriber.syncErrorThrowable = false;\n        return subscriber;\n    };\n    Subscriber.prototype.next = function (value) {\n        if (!this.isStopped) {\n            this._next(value);\n        }\n    };\n    Subscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._error(err);\n        }\n    };\n    Subscriber.prototype.complete = function () {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._complete();\n        }\n    };\n    Subscriber.prototype.unsubscribe = function () {\n        if (this.closed) {\n            return;\n        }\n        this.isStopped = true;\n        _super.prototype.unsubscribe.call(this);\n    };\n    Subscriber.prototype._next = function (value) {\n        this.destination.next(value);\n    };\n    Subscriber.prototype._error = function (err) {\n        this.destination.error(err);\n        this.unsubscribe();\n    };\n    Subscriber.prototype._complete = function () {\n        this.destination.complete();\n        this.unsubscribe();\n    };\n    Subscriber.prototype._unsubscribeAndRecycle = function () {\n        var _parentOrParents = this._parentOrParents;\n        this._parentOrParents = null;\n        this.unsubscribe();\n        this.closed = false;\n        this.isStopped = false;\n        this._parentOrParents = _parentOrParents;\n        return this;\n    };\n    return Subscriber;\n}(Subscription));\nexport { Subscriber };\nvar SafeSubscriber = (function (_super) {\n    __extends(SafeSubscriber, _super);\n    function SafeSubscriber(_parentSubscriber, observerOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this._parentSubscriber = _parentSubscriber;\n        var next;\n        var context = _this;\n        if (isFunction(observerOrNext)) {\n            next = observerOrNext;\n        }\n        else if (observerOrNext) {\n            next = observerOrNext.next;\n            error = observerOrNext.error;\n            complete = observerOrNext.complete;\n            if (observerOrNext !== emptyObserver) {\n                context = Object.create(observerOrNext);\n                if (isFunction(context.unsubscribe)) {\n                    _this.add(context.unsubscribe.bind(context));\n                }\n                context.unsubscribe = _this.unsubscribe.bind(_this);\n            }\n        }\n        _this._context = context;\n        _this._next = next;\n        _this._error = error;\n        _this._complete = complete;\n        return _this;\n    }\n    SafeSubscriber.prototype.next = function (value) {\n        if (!this.isStopped && this._next) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                this.__tryOrUnsub(this._next, value);\n            }\n            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            var useDeprecatedSynchronousErrorHandling = config.useDeprecatedSynchronousErrorHandling;\n            if (this._error) {\n                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(this._error, err);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, this._error, err);\n                    this.unsubscribe();\n                }\n            }\n            else if (!_parentSubscriber.syncErrorThrowable) {\n                this.unsubscribe();\n                if (useDeprecatedSynchronousErrorHandling) {\n                    throw err;\n                }\n                hostReportError(err);\n            }\n            else {\n                if (useDeprecatedSynchronousErrorHandling) {\n                    _parentSubscriber.syncErrorValue = err;\n                    _parentSubscriber.syncErrorThrown = true;\n                }\n                else {\n                    hostReportError(err);\n                }\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.complete = function () {\n        var _this = this;\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (this._complete) {\n                var wrappedComplete = function () { return _this._complete.call(_this._context); };\n                if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(wrappedComplete);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n                    this.unsubscribe();\n                }\n            }\n            else {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrUnsub = function (fn, value) {\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            this.unsubscribe();\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                throw err;\n            }\n            else {\n                hostReportError(err);\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrSetError = function (parent, fn, value) {\n        if (!config.useDeprecatedSynchronousErrorHandling) {\n            throw new Error('bad call');\n        }\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                parent.syncErrorValue = err;\n                parent.syncErrorThrown = true;\n                return true;\n            }\n            else {\n                hostReportError(err);\n                return true;\n            }\n        }\n        return false;\n    };\n    SafeSubscriber.prototype._unsubscribe = function () {\n        var _parentSubscriber = this._parentSubscriber;\n        this._context = null;\n        this._parentSubscriber = null;\n        _parentSubscriber.unsubscribe();\n    };\n    return SafeSubscriber;\n}(Subscriber));\nexport { SafeSubscriber };\n//# sourceMappingURL=Subscriber.js.map","var Deferred = (function () {\n    function Deferred() {\n        var _this = this;\n        this.resolve = null;\n        this.reject = null;\n        this.promise = new Promise(function (a, b) {\n            _this.resolve = a;\n            _this.reject = b;\n        });\n    }\n    return Deferred;\n}());\nexport { Deferred };\n//# sourceMappingURL=deferred.js.map","import { __asyncGenerator, __await, __generator } from \"tslib\";\nimport { Deferred } from './util/deferred';\nexport function asyncIteratorFrom(source) {\n    return coroutine(source);\n}\nfunction coroutine(source) {\n    return __asyncGenerator(this, arguments, function coroutine_1() {\n        var deferreds, values, hasError, error, completed, subs, d, result, err_1;\n        return __generator(this, function (_a) {\n            switch (_a.label) {\n                case 0:\n                    deferreds = [];\n                    values = [];\n                    hasError = false;\n                    error = null;\n                    completed = false;\n                    subs = source.subscribe({\n                        next: function (value) {\n                            if (deferreds.length > 0) {\n                                deferreds.shift().resolve({ value: value, done: false });\n                            }\n                            else {\n                                values.push(value);\n                            }\n                        },\n                        error: function (err) {\n                            hasError = true;\n                            error = err;\n                            while (deferreds.length > 0) {\n                                deferreds.shift().reject(err);\n                            }\n                        },\n                        complete: function () {\n                            completed = true;\n                            while (deferreds.length > 0) {\n                                deferreds.shift().resolve({ value: undefined, done: true });\n                            }\n                        },\n                    });\n                    _a.label = 1;\n                case 1:\n                    _a.trys.push([1, 16, 17, 18]);\n                    _a.label = 2;\n                case 2:\n                    if (!true) return [3, 15];\n                    if (!(values.length > 0)) return [3, 5];\n                    return [4, __await(values.shift())];\n                case 3: return [4, _a.sent()];\n                case 4:\n                    _a.sent();\n                    return [3, 14];\n                case 5:\n                    if (!completed) return [3, 7];\n                    return [4, __await(void 0)];\n                case 6: return [2, _a.sent()];\n                case 7:\n                    if (!hasError) return [3, 8];\n                    throw error;\n                case 8:\n                    d = new Deferred();\n                    deferreds.push(d);\n                    return [4, __await(d.promise)];\n                case 9:\n                    result = _a.sent();\n                    if (!result.done) return [3, 11];\n                    return [4, __await(void 0)];\n                case 10: return [2, _a.sent()];\n                case 11: return [4, __await(result.value)];\n                case 12: return [4, _a.sent()];\n                case 13:\n                    _a.sent();\n                    _a.label = 14;\n                case 14: return [3, 2];\n                case 15: return [3, 18];\n                case 16:\n                    err_1 = _a.sent();\n                    throw err_1;\n                case 17:\n                    subs.unsubscribe();\n                    return [7];\n                case 18: return [2];\n            }\n        });\n    });\n}\n//# sourceMappingURL=asyncIteratorFrom.js.map","import { canReportError } from './util/canReportError';\nimport { toSubscriber } from './util/toSubscriber';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { asyncIteratorFrom } from './asyncIteratorFrom';\nvar Observable = (function () {\n    function Observable(subscribe) {\n        this._isScalar = false;\n        if (subscribe) {\n            this._subscribe = subscribe;\n        }\n    }\n    Observable.prototype.lift = function (operator) {\n        var observable = new Observable();\n        observable.source = this;\n        observable.operator = operator;\n        return observable;\n    };\n    Observable.prototype.subscribe = function (observerOrNext, error, complete) {\n        var operator = this.operator;\n        var sink = toSubscriber(observerOrNext, error, complete);\n        if (operator) {\n            sink.add(operator.call(sink, this.source));\n        }\n        else {\n            sink.add(this.source || (config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?\n                this._subscribe(sink) :\n                this._trySubscribe(sink));\n        }\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            if (sink.syncErrorThrowable) {\n                sink.syncErrorThrowable = false;\n                if (sink.syncErrorThrown) {\n                    throw sink.syncErrorValue;\n                }\n            }\n        }\n        return sink;\n    };\n    Observable.prototype._trySubscribe = function (sink) {\n        try {\n            return this._subscribe(sink);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                sink.syncErrorThrown = true;\n                sink.syncErrorValue = err;\n            }\n            if (canReportError(sink)) {\n                sink.error(err);\n            }\n            else {\n                console.warn(err);\n            }\n        }\n    };\n    Observable.prototype.forEach = function (next, promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var subscription;\n            subscription = _this.subscribe(function (value) {\n                try {\n                    next(value);\n                }\n                catch (err) {\n                    reject(err);\n                    if (subscription) {\n                        subscription.unsubscribe();\n                    }\n                }\n            }, reject, resolve);\n        });\n    };\n    Observable.prototype._subscribe = function (subscriber) {\n        var source = this.source;\n        return source && source.subscribe(subscriber);\n    };\n    Observable.prototype[Symbol_observable] = function () {\n        return this;\n    };\n    Observable.prototype.pipe = function () {\n        var operations = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            operations[_i] = arguments[_i];\n        }\n        if (operations.length === 0) {\n            return this;\n        }\n        return pipeFromArray(operations)(this);\n    };\n    Observable.prototype.toPromise = function (promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var value;\n            _this.subscribe(function (x) { return value = x; }, function (err) { return reject(err); }, function () { return resolve(value); });\n        });\n    };\n    Observable.create = function (subscribe) {\n        return new Observable(subscribe);\n    };\n    return Observable;\n}());\nexport { Observable };\nfunction getPromiseCtor(promiseCtor) {\n    if (!promiseCtor) {\n        promiseCtor = config.Promise || Promise;\n    }\n    if (!promiseCtor) {\n        throw new Error('no Promise impl found');\n    }\n    return promiseCtor;\n}\n(function () {\n    if (Symbol && Symbol.asyncIterator) {\n        Observable.prototype[Symbol.asyncIterator] = function () {\n            return asyncIteratorFrom(this);\n        };\n    }\n})();\n//# sourceMappingURL=Observable.js.map","import { Subscriber } from '../Subscriber';\nimport { rxSubscriber as rxSubscriberSymbol } from '../symbol/rxSubscriber';\nimport { empty as emptyObserver } from '../Observer';\nexport function toSubscriber(nextOrObserver, error, complete) {\n    if (nextOrObserver) {\n        if (nextOrObserver instanceof Subscriber) {\n            return nextOrObserver;\n        }\n        if (nextOrObserver[rxSubscriberSymbol]) {\n            return nextOrObserver[rxSubscriberSymbol]();\n        }\n    }\n    if (!nextOrObserver && !error && !complete) {\n        return new Subscriber(emptyObserver);\n    }\n    return new Subscriber(nextOrObserver, error, complete);\n}\n//# sourceMappingURL=toSubscriber.js.map","import { Subscriber } from '../Subscriber';\nexport function canReportError(observer) {\n    while (observer) {\n        var _a = observer, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;\n        if (closed_1 || isStopped) {\n            return false;\n        }\n        else if (destination && destination instanceof Subscriber) {\n            observer = destination;\n        }\n        else {\n            observer = null;\n        }\n    }\n    return true;\n}\n//# sourceMappingURL=canReportError.js.map","var UnsubscriptionErrorImpl = (function () {\n    function UnsubscriptionErrorImpl(errors) {\n        Error.call(this);\n        this.message = errors ?\n            errors.length + \" errors occurred during unsubscription:\\n\" + errors.map(function (err, i) { return i + 1 + \") \" + err.toString(); }).join('\\n  ') : '';\n        this.name = 'UnsubscriptionError';\n        this.errors = errors;\n        return this;\n    }\n    UnsubscriptionErrorImpl.prototype = Object.create(Error.prototype);\n    return UnsubscriptionErrorImpl;\n})();\nexport var UnsubscriptionError = UnsubscriptionErrorImpl;\n//# sourceMappingURL=UnsubscriptionError.js.map","import { isArray } from './util/isArray';\nimport { isObject } from './util/isObject';\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nvar Subscription = (function () {\n    function Subscription(unsubscribe) {\n        this.closed = false;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (unsubscribe) {\n            this._unsubscribe = unsubscribe;\n        }\n    }\n    Subscription.prototype.unsubscribe = function () {\n        var errors;\n        if (this.closed) {\n            return;\n        }\n        var _a = this, _parentOrParents = _a._parentOrParents, _unsubscribe = _a._unsubscribe, _subscriptions = _a._subscriptions;\n        this.closed = true;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (_parentOrParents instanceof Subscription) {\n            _parentOrParents.remove(this);\n        }\n        else if (_parentOrParents !== null) {\n            for (var index = 0; index < _parentOrParents.length; ++index) {\n                var parent_1 = _parentOrParents[index];\n                parent_1.remove(this);\n            }\n        }\n        if (isFunction(_unsubscribe)) {\n            try {\n                _unsubscribe.call(this);\n            }\n            catch (e) {\n                errors = e instanceof UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n            }\n        }\n        if (isArray(_subscriptions)) {\n            var index = -1;\n            var len = _subscriptions.length;\n            while (++index < len) {\n                var sub = _subscriptions[index];\n                if (isObject(sub)) {\n                    try {\n                        sub.unsubscribe();\n                    }\n                    catch (e) {\n                        errors = errors || [];\n                        if (e instanceof UnsubscriptionError) {\n                            errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n                        }\n                        else {\n                            errors.push(e);\n                        }\n                    }\n                }\n            }\n        }\n        if (errors) {\n            throw new UnsubscriptionError(errors);\n        }\n    };\n    Subscription.prototype.add = function (teardown) {\n        var subscription = teardown;\n        if (!teardown) {\n            return Subscription.EMPTY;\n        }\n        switch (typeof teardown) {\n            case 'function':\n                subscription = new Subscription(teardown);\n            case 'object':\n                if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n                    return subscription;\n                }\n                else if (this.closed) {\n                    subscription.unsubscribe();\n                    return subscription;\n                }\n                else if (!(subscription instanceof Subscription)) {\n                    var tmp = subscription;\n                    subscription = new Subscription();\n                    subscription._subscriptions = [tmp];\n                }\n                break;\n            default: {\n                throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n            }\n        }\n        var _parentOrParents = subscription._parentOrParents;\n        if (_parentOrParents === null) {\n            subscription._parentOrParents = this;\n        }\n        else if (_parentOrParents instanceof Subscription) {\n            if (_parentOrParents === this) {\n                return subscription;\n            }\n            subscription._parentOrParents = [_parentOrParents, this];\n        }\n        else if (_parentOrParents.indexOf(this) === -1) {\n            _parentOrParents.push(this);\n        }\n        else {\n            return subscription;\n        }\n        var subscriptions = this._subscriptions;\n        if (subscriptions === null) {\n            this._subscriptions = [subscription];\n        }\n        else {\n            subscriptions.push(subscription);\n        }\n        return subscription;\n    };\n    Subscription.prototype.remove = function (subscription) {\n        var subscriptions = this._subscriptions;\n        if (subscriptions) {\n            var subscriptionIndex = subscriptions.indexOf(subscription);\n            if (subscriptionIndex !== -1) {\n                subscriptions.splice(subscriptionIndex, 1);\n            }\n        }\n    };\n    Subscription.EMPTY = (function (empty) {\n        empty.closed = true;\n        return empty;\n    }(new Subscription()));\n    return Subscription;\n}());\nexport { Subscription };\nfunction flattenUnsubscriptionErrors(errors) {\n    return errors.reduce(function (errs, err) { return errs.concat((err instanceof UnsubscriptionError) ? err.errors : err); }, []);\n}\n//# sourceMappingURL=Subscription.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function map(project, thisArg) {\n    return function mapOperation(source) {\n        if (typeof project !== 'function') {\n            throw new TypeError('argument is not a function. Are you looking for `mapTo()`?');\n        }\n        return source.lift(new MapOperator(project, thisArg));\n    };\n}\nvar MapOperator = (function () {\n    function MapOperator(project, thisArg) {\n        this.project = project;\n        this.thisArg = thisArg;\n    }\n    MapOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new MapSubscriber(subscriber, this.project, this.thisArg));\n    };\n    return MapOperator;\n}());\nexport { MapOperator };\nvar MapSubscriber = (function (_super) {\n    __extends(MapSubscriber, _super);\n    function MapSubscriber(destination, project, thisArg) {\n        var _this = _super.call(this, destination) || this;\n        _this.project = project;\n        _this.count = 0;\n        _this.thisArg = thisArg || _this;\n        return _this;\n    }\n    MapSubscriber.prototype._next = function (value) {\n        var result;\n        try {\n            result = this.project.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return MapSubscriber;\n}(Subscriber));\n//# sourceMappingURL=map.js.map","import { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeTo } from './subscribeTo';\nimport { Observable } from '../Observable';\nexport function subscribeToResult(outerSubscriber, result, outerValue, outerIndex, innerSubscriber) {\n    if (innerSubscriber === void 0) { innerSubscriber = new InnerSubscriber(outerSubscriber, outerValue, outerIndex); }\n    if (innerSubscriber.closed) {\n        return undefined;\n    }\n    if (result instanceof Observable) {\n        return result.subscribe(innerSubscriber);\n    }\n    return subscribeTo(result)(innerSubscriber);\n}\n//# sourceMappingURL=subscribeToResult.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from './Subscriber';\nvar OuterSubscriber = (function (_super) {\n    __extends(OuterSubscriber, _super);\n    function OuterSubscriber() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    OuterSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    };\n    OuterSubscriber.prototype.notifyError = function (error, innerSub) {\n        this.destination.error(error);\n    };\n    OuterSubscriber.prototype.notifyComplete = function (innerSub) {\n        this.destination.complete();\n    };\n    return OuterSubscriber;\n}(Subscriber));\nexport { OuterSubscriber };\n//# sourceMappingURL=OuterSubscriber.js.map","var _enable_super_gross_mode_that_will_cause_bad_things = false;\nexport var config = {\n    Promise: undefined,\n    set useDeprecatedSynchronousErrorHandling(value) {\n        if (value) {\n            var error = new Error();\n            console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n        }\n        else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n            console.log('RxJS: Back to a better error behavior. Thank you. <3');\n        }\n        _enable_super_gross_mode_that_will_cause_bad_things = value;\n    },\n    get useDeprecatedSynchronousErrorHandling() {\n        return _enable_super_gross_mode_that_will_cause_bad_things;\n    },\n};\n//# sourceMappingURL=config.js.map","var __window = typeof window !== 'undefined' && window;\nvar __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&\n    self instanceof WorkerGlobalScope && self;\nvar __global = typeof global !== 'undefined' && global;\nvar _root = __window || __global || __self;\n(function () {\n    if (!_root) {\n        throw new Error('RxJS could not find any global context (window, self, global)');\n    }\n})();\nexport { _root as root };\n//# sourceMappingURL=root.js.map","import _isPlaceholder from \"./_isPlaceholder.js\";\n/**\n * Optimized internal one-arity curry function.\n *\n * @private\n * @category Function\n * @param {Function} fn The function to curry.\n * @return {Function} The curried function.\n */\n\nexport default function _curry1(fn) {\n  return function f1(a) {\n    if (arguments.length === 0 || _isPlaceholder(a)) {\n      return f1;\n    } else {\n      return fn.apply(this, arguments);\n    }\n  };\n}","export function isFunction(x) {\n    return typeof x === 'function';\n}\n//# sourceMappingURL=isFunction.js.map","export function noop() { }\n//# sourceMappingURL=noop.js.map","export var observable = (function () { return typeof Symbol === 'function' && Symbol.observable || '@@observable'; })();\n//# sourceMappingURL=observable.js.map","import _curry1 from \"./_curry1.js\";\nimport _isPlaceholder from \"./_isPlaceholder.js\";\n/**\n * Optimized internal two-arity curry function.\n *\n * @private\n * @category Function\n * @param {Function} fn The function to curry.\n * @return {Function} The curried function.\n */\n\nexport default function _curry2(fn) {\n  return function f2(a, b) {\n    switch (arguments.length) {\n      case 0:\n        return f2;\n\n      case 1:\n        return _isPlaceholder(a) ? f2 : _curry1(function (_b) {\n          return fn(a, _b);\n        });\n\n      default:\n        return _isPlaceholder(a) && _isPlaceholder(b) ? f2 : _isPlaceholder(a) ? _curry1(function (_a) {\n          return fn(_a, b);\n        }) : _isPlaceholder(b) ? _curry1(function (_b) {\n          return fn(a, _b);\n        }) : fn(a, b);\n    }\n  };\n}","import { Observable } from '../Observable';\nexport var EMPTY = new Observable(function (subscriber) { return subscriber.complete(); });\nexport function empty(scheduler) {\n    return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n    return new Observable(function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });\n}\n//# sourceMappingURL=empty.js.map","var ObjectUnsubscribedErrorImpl = (function () {\n    function ObjectUnsubscribedErrorImpl() {\n        Error.call(this);\n        this.message = 'object unsubscribed';\n        this.name = 'ObjectUnsubscribedError';\n        return this;\n    }\n    ObjectUnsubscribedErrorImpl.prototype = Object.create(Error.prototype);\n    return ObjectUnsubscribedErrorImpl;\n})();\nexport var ObjectUnsubscribedError = ObjectUnsubscribedErrorImpl;\n//# sourceMappingURL=ObjectUnsubscribedError.js.map","export function hostReportError(err) {\n    setTimeout(function () { throw err; }, 0);\n}\n//# sourceMappingURL=hostReportError.js.map","export var isArray = (function () { return Array.isArray || (function (x) { return x && typeof x.length === 'number'; }); })();\n//# sourceMappingURL=isArray.js.map","export function isScheduler(value) {\n    return value && typeof value.schedule === 'function';\n}\n//# sourceMappingURL=isScheduler.js.map","import { __extends } from \"tslib\";\nimport { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nvar SubjectSubscriber = (function (_super) {\n    __extends(SubjectSubscriber, _super);\n    function SubjectSubscriber(destination) {\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        return _this;\n    }\n    return SubjectSubscriber;\n}(Subscriber));\nexport { SubjectSubscriber };\nvar Subject = (function (_super) {\n    __extends(Subject, _super);\n    function Subject() {\n        var _this = _super.call(this) || this;\n        _this.observers = [];\n        _this.closed = false;\n        _this.isStopped = false;\n        _this.hasError = false;\n        _this.thrownError = null;\n        return _this;\n    }\n    Subject.prototype[rxSubscriberSymbol] = function () {\n        return new SubjectSubscriber(this);\n    };\n    Subject.prototype.lift = function (operator) {\n        var subject = new AnonymousSubject(this, this);\n        subject.operator = operator;\n        return subject;\n    };\n    Subject.prototype.next = function (value) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        if (!this.isStopped) {\n            var observers = this.observers;\n            var len = observers.length;\n            var copy = observers.slice();\n            for (var i = 0; i < len; i++) {\n                copy[i].next(value);\n            }\n        }\n    };\n    Subject.prototype.error = function (err) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.hasError = true;\n        this.thrownError = err;\n        this.isStopped = true;\n        var observers = this.observers;\n        var len = observers.length;\n        var copy = observers.slice();\n        for (var i = 0; i < len; i++) {\n            copy[i].error(err);\n        }\n        this.observers.length = 0;\n    };\n    Subject.prototype.complete = function () {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.isStopped = true;\n        var observers = this.observers;\n        var len = observers.length;\n        var copy = observers.slice();\n        for (var i = 0; i < len; i++) {\n            copy[i].complete();\n        }\n        this.observers.length = 0;\n    };\n    Subject.prototype.unsubscribe = function () {\n        this.isStopped = true;\n        this.closed = true;\n        this.observers = null;\n    };\n    Subject.prototype._trySubscribe = function (subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return _super.prototype._trySubscribe.call(this, subscriber);\n        }\n    };\n    Subject.prototype._subscribe = function (subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.hasError) {\n            subscriber.error(this.thrownError);\n            return Subscription.EMPTY;\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n            return Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            return new SubjectSubscription(this, subscriber);\n        }\n    };\n    Subject.prototype.asObservable = function () {\n        var observable = new Observable();\n        observable.source = this;\n        return observable;\n    };\n    Subject.create = function (destination, source) {\n        return new AnonymousSubject(destination, source);\n    };\n    return Subject;\n}(Observable));\nexport { Subject };\nvar AnonymousSubject = (function (_super) {\n    __extends(AnonymousSubject, _super);\n    function AnonymousSubject(destination, source) {\n        var _this = _super.call(this) || this;\n        _this.destination = destination;\n        _this.source = source;\n        return _this;\n    }\n    AnonymousSubject.prototype.next = function (value) {\n        var destination = this.destination;\n        if (destination && destination.next) {\n            destination.next(value);\n        }\n    };\n    AnonymousSubject.prototype.error = function (err) {\n        var destination = this.destination;\n        if (destination && destination.error) {\n            this.destination.error(err);\n        }\n    };\n    AnonymousSubject.prototype.complete = function () {\n        var destination = this.destination;\n        if (destination && destination.complete) {\n            this.destination.complete();\n        }\n    };\n    AnonymousSubject.prototype._subscribe = function (subscriber) {\n        var source = this.source;\n        if (source) {\n            return this.source.subscribe(subscriber);\n        }\n        else {\n            return Subscription.EMPTY;\n        }\n    };\n    return AnonymousSubject;\n}(Subject));\nexport { AnonymousSubject };\n//# sourceMappingURL=Subject.js.map","export function getSymbolIterator() {\n    if (typeof Symbol !== 'function' || !Symbol.iterator) {\n        return '@@iterator';\n    }\n    return Symbol.iterator;\n}\nexport var iterator = getSymbolIterator();\nexport var $$iterator = iterator;\n//# sourceMappingURL=iterator.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from './Subscriber';\nvar InnerSubscriber = (function (_super) {\n    __extends(InnerSubscriber, _super);\n    function InnerSubscriber(parent, outerValue, outerIndex) {\n        var _this = _super.call(this) || this;\n        _this.parent = parent;\n        _this.outerValue = outerValue;\n        _this.outerIndex = outerIndex;\n        _this.index = 0;\n        return _this;\n    }\n    InnerSubscriber.prototype._next = function (value) {\n        this.parent.notifyNext(this.outerValue, value, this.outerIndex, this.index++, this);\n    };\n    InnerSubscriber.prototype._error = function (error) {\n        this.parent.notifyError(error, this);\n        this.unsubscribe();\n    };\n    InnerSubscriber.prototype._complete = function () {\n        this.parent.notifyComplete(this);\n        this.unsubscribe();\n    };\n    return InnerSubscriber;\n}(Subscriber));\nexport { InnerSubscriber };\n//# sourceMappingURL=InnerSubscriber.js.map","export default function _isPlaceholder(a) {\n  return a != null && typeof a === 'object' && a['@@functional/placeholder'] === true;\n}","export var rxSubscriber = (function () {\n    return typeof Symbol === 'function'\n        ? Symbol('rxSubscriber')\n        : '@@rxSubscriber_' + Math.random();\n})();\nexport var $$rxSubscriber = rxSubscriber;\n//# sourceMappingURL=rxSubscriber.js.map","import { __extends } from \"tslib\";\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function switchMap(project, resultSelector) {\n    if (typeof resultSelector === 'function') {\n        return function (source) { return source.pipe(switchMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); })); };\n    }\n    return function (source) { return source.lift(new SwitchMapOperator(project)); };\n}\nvar SwitchMapOperator = (function () {\n    function SwitchMapOperator(project) {\n        this.project = project;\n    }\n    SwitchMapOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));\n    };\n    return SwitchMapOperator;\n}());\nvar SwitchMapSubscriber = (function (_super) {\n    __extends(SwitchMapSubscriber, _super);\n    function SwitchMapSubscriber(destination, project) {\n        var _this = _super.call(this, destination) || this;\n        _this.project = project;\n        _this.index = 0;\n        return _this;\n    }\n    SwitchMapSubscriber.prototype._next = function (value) {\n        var result;\n        var index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (error) {\n            this.destination.error(error);\n            return;\n        }\n        this._innerSub(result, value, index);\n    };\n    SwitchMapSubscriber.prototype._innerSub = function (result, value, index) {\n        var innerSubscription = this.innerSubscription;\n        if (innerSubscription) {\n            innerSubscription.unsubscribe();\n        }\n        var innerSubscriber = new InnerSubscriber(this, value, index);\n        var destination = this.destination;\n        destination.add(innerSubscriber);\n        this.innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n        if (this.innerSubscription !== innerSubscriber) {\n            destination.add(this.innerSubscription);\n        }\n    };\n    SwitchMapSubscriber.prototype._complete = function () {\n        var innerSubscription = this.innerSubscription;\n        if (!innerSubscription || innerSubscription.closed) {\n            _super.prototype._complete.call(this);\n        }\n        this.unsubscribe();\n    };\n    SwitchMapSubscriber.prototype._unsubscribe = function () {\n        this.innerSubscription = null;\n    };\n    SwitchMapSubscriber.prototype.notifyComplete = function (innerSub) {\n        var destination = this.destination;\n        destination.remove(innerSub);\n        this.innerSubscription = null;\n        if (this.isStopped) {\n            _super.prototype._complete.call(this);\n        }\n    };\n    SwitchMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    };\n    return SwitchMapSubscriber;\n}(OuterSubscriber));\n//# sourceMappingURL=switchMap.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        var i = 0;\n        sub.add(scheduler.schedule(function () {\n            if (i === input.length) {\n                subscriber.complete();\n                return;\n            }\n            subscriber.next(input[i++]);\n            if (!subscriber.closed) {\n                sub.add(this.schedule());\n            }\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleArray.js.map","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n    if (!scheduler) {\n        return new Observable(subscribeToArray(input));\n    }\n    else {\n        return scheduleArray(input, scheduler);\n    }\n}\n//# sourceMappingURL=fromArray.js.map","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nimport { scheduleAsyncIterable } from './scheduleAsyncIterable';\nexport function scheduled(input, scheduler) {\n    if (input != null) {\n        if (isInteropObservable(input)) {\n            return scheduleObservable(input, scheduler);\n        }\n        else if (isPromise(input)) {\n            return schedulePromise(input, scheduler);\n        }\n        else if (isArrayLike(input)) {\n            return scheduleArray(input, scheduler);\n        }\n        else if (isIterable(input) || typeof input === 'string') {\n            return scheduleIterable(input, scheduler);\n        }\n        else if (Symbol && Symbol.asyncIterator && typeof input[Symbol.asyncIterator] === 'function') {\n            return scheduleAsyncIterable(input, scheduler);\n        }\n    }\n    throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n//# sourceMappingURL=scheduled.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n    return input && typeof input[Symbol_observable] === 'function';\n}\n//# sourceMappingURL=isInteropObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () {\n            var observable = input[Symbol_observable]();\n            sub.add(observable.subscribe({\n                next: function (value) { sub.add(scheduler.schedule(function () { return subscriber.next(value); })); },\n                error: function (err) { sub.add(scheduler.schedule(function () { return subscriber.error(err); })); },\n                complete: function () { sub.add(scheduler.schedule(function () { return subscriber.complete(); })); },\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () { return input.then(function (value) {\n            sub.add(scheduler.schedule(function () {\n                subscriber.next(value);\n                sub.add(scheduler.schedule(function () { return subscriber.complete(); }));\n            }));\n        }, function (err) {\n            sub.add(scheduler.schedule(function () { return subscriber.error(err); }));\n        }); }));\n        return sub;\n    });\n}\n//# sourceMappingURL=schedulePromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n    return input && typeof input[Symbol_iterator] === 'function';\n}\n//# sourceMappingURL=isIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        var iterator;\n        sub.add(function () {\n            if (iterator && typeof iterator.return === 'function') {\n                iterator.return();\n            }\n        });\n        sub.add(scheduler.schedule(function () {\n            iterator = input[Symbol_iterator]();\n            sub.add(scheduler.schedule(function () {\n                if (subscriber.closed) {\n                    return;\n                }\n                var value;\n                var done;\n                try {\n                    var result = iterator.next();\n                    value = result.value;\n                    done = result.done;\n                }\n                catch (err) {\n                    subscriber.error(err);\n                    return;\n                }\n                if (done) {\n                    subscriber.complete();\n                }\n                else {\n                    subscriber.next(value);\n                    this.schedule();\n                }\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleAsyncIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable(function (subscriber) {\n        var sub = new Subscription();\n        sub.add(scheduler.schedule(function () {\n            var iterator = input[Symbol.asyncIterator]();\n            sub.add(scheduler.schedule(function () {\n                var _this = this;\n                iterator.next().then(function (result) {\n                    if (result.done) {\n                        subscriber.complete();\n                    }\n                    else {\n                        subscriber.next(result.value);\n                        _this.schedule();\n                    }\n                });\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleAsyncIterable.js.map","import { Observable } from '../Observable';\nimport { subscribeTo } from '../util/subscribeTo';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n    if (!scheduler) {\n        if (input instanceof Observable) {\n            return input;\n        }\n        return new Observable(subscribeTo(input));\n    }\n    else {\n        return scheduled(input, scheduler);\n    }\n}\n//# sourceMappingURL=from.js.map","var Scheduler = (function () {\n    function Scheduler(SchedulerAction, now) {\n        if (now === void 0) { now = Scheduler.now; }\n        this.SchedulerAction = SchedulerAction;\n        this.now = now;\n    }\n    Scheduler.prototype.schedule = function (work, delay, state) {\n        if (delay === void 0) { delay = 0; }\n        return new this.SchedulerAction(this, work).schedule(state, delay);\n    };\n    Scheduler.now = function () { return Date.now(); };\n    return Scheduler;\n}());\nexport { Scheduler };\n//# sourceMappingURL=Scheduler.js.map","import { __extends } from \"tslib\";\nimport { Scheduler } from '../Scheduler';\nvar AsyncScheduler = (function (_super) {\n    __extends(AsyncScheduler, _super);\n    function AsyncScheduler(SchedulerAction, now) {\n        if (now === void 0) { now = Scheduler.now; }\n        var _this = _super.call(this, SchedulerAction, function () {\n            if (AsyncScheduler.delegate && AsyncScheduler.delegate !== _this) {\n                return AsyncScheduler.delegate.now();\n            }\n            else {\n                return now();\n            }\n        }) || this;\n        _this.actions = [];\n        _this.active = false;\n        _this.scheduled = undefined;\n        return _this;\n    }\n    AsyncScheduler.prototype.schedule = function (work, delay, state) {\n        if (delay === void 0) { delay = 0; }\n        if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n            return AsyncScheduler.delegate.schedule(work, delay, state);\n        }\n        else {\n            return _super.prototype.schedule.call(this, work, delay, state);\n        }\n    };\n    AsyncScheduler.prototype.flush = function (action) {\n        var actions = this.actions;\n        if (this.active) {\n            actions.push(action);\n            return;\n        }\n        var error;\n        this.active = true;\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (action = actions.shift());\n        this.active = false;\n        if (error) {\n            while (action = actions.shift()) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    };\n    return AsyncScheduler;\n}(Scheduler));\nexport { AsyncScheduler };\n//# sourceMappingURL=AsyncScheduler.js.map","import { __extends } from \"tslib\";\nimport { Action } from './Action';\nvar AsyncAction = (function (_super) {\n    __extends(AsyncAction, _super);\n    function AsyncAction(scheduler, work) {\n        var _this = _super.call(this, scheduler, work) || this;\n        _this.scheduler = scheduler;\n        _this.work = work;\n        _this.pending = false;\n        return _this;\n    }\n    AsyncAction.prototype.schedule = function (state, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (this.closed) {\n            return this;\n        }\n        this.state = state;\n        var id = this.id;\n        var scheduler = this.scheduler;\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, delay);\n        }\n        this.pending = true;\n        this.delay = delay;\n        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n        return this;\n    };\n    AsyncAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        return setInterval(scheduler.flush.bind(scheduler, this), delay);\n    };\n    AsyncAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (delay !== null && this.delay === delay && this.pending === false) {\n            return id;\n        }\n        clearInterval(id);\n        return undefined;\n    };\n    AsyncAction.prototype.execute = function (state, delay) {\n        if (this.closed) {\n            return new Error('executing a cancelled action');\n        }\n        this.pending = false;\n        var error = this._execute(state, delay);\n        if (error) {\n            return error;\n        }\n        else if (this.pending === false && this.id != null) {\n            this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n        }\n    };\n    AsyncAction.prototype._execute = function (state, delay) {\n        var errored = false;\n        var errorValue = undefined;\n        try {\n            this.work(state);\n        }\n        catch (e) {\n            errored = true;\n            errorValue = !!e && e || new Error(e);\n        }\n        if (errored) {\n            this.unsubscribe();\n            return errorValue;\n        }\n    };\n    AsyncAction.prototype._unsubscribe = function () {\n        var id = this.id;\n        var scheduler = this.scheduler;\n        var actions = scheduler.actions;\n        var index = actions.indexOf(this);\n        this.work = null;\n        this.state = null;\n        this.pending = false;\n        this.scheduler = null;\n        if (index !== -1) {\n            actions.splice(index, 1);\n        }\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, null);\n        }\n        this.delay = null;\n    };\n    return AsyncAction;\n}(Action));\nexport { AsyncAction };\n//# sourceMappingURL=AsyncAction.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from '../Subscription';\nvar Action = (function (_super) {\n    __extends(Action, _super);\n    function Action(scheduler, work) {\n        return _super.call(this) || this;\n    }\n    Action.prototype.schedule = function (state, delay) {\n        if (delay === void 0) { delay = 0; }\n        return this;\n    };\n    return Action;\n}(Subscription));\nexport { Action };\n//# sourceMappingURL=Action.js.map","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of() {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    var scheduler = args[args.length - 1];\n    if (isScheduler(scheduler)) {\n        args.pop();\n        return scheduleArray(args, scheduler);\n    }\n    else {\n        return fromArray(args);\n    }\n}\n//# sourceMappingURL=of.js.map","import { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport var empty = {\n    closed: true,\n    next: function (value) { },\n    error: function (err) {\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            throw err;\n        }\n        else {\n            hostReportError(err);\n        }\n    },\n    complete: function () { }\n};\n//# sourceMappingURL=Observer.js.map","import { EMPTY } from './observable/empty';\nimport { of } from './observable/of';\nimport { throwError } from './observable/throwError';\nexport var NotificationKind;\n(function (NotificationKind) {\n    NotificationKind[\"NEXT\"] = \"N\";\n    NotificationKind[\"ERROR\"] = \"E\";\n    NotificationKind[\"COMPLETE\"] = \"C\";\n})(NotificationKind || (NotificationKind = {}));\nvar Notification = (function () {\n    function Notification(kind, value, error) {\n        this.kind = kind;\n        this.value = value;\n        this.error = error;\n        this.hasValue = kind === 'N';\n    }\n    Notification.prototype.observe = function (observer) {\n        switch (this.kind) {\n            case 'N':\n                return observer.next && observer.next(this.value);\n            case 'E':\n                return observer.error && observer.error(this.error);\n            case 'C':\n                return observer.complete && observer.complete();\n        }\n    };\n    Notification.prototype.do = function (next, error, complete) {\n        var kind = this.kind;\n        switch (kind) {\n            case 'N':\n                return next && next(this.value);\n            case 'E':\n                return error && error(this.error);\n            case 'C':\n                return complete && complete();\n        }\n    };\n    Notification.prototype.accept = function (nextOrObserver, error, complete) {\n        if (nextOrObserver && typeof nextOrObserver.next === 'function') {\n            return this.observe(nextOrObserver);\n        }\n        else {\n            return this.do(nextOrObserver, error, complete);\n        }\n    };\n    Notification.prototype.toObservable = function () {\n        var kind = this.kind;\n        switch (kind) {\n            case 'N':\n                return of(this.value);\n            case 'E':\n                return throwError(this.error);\n            case 'C':\n                return EMPTY;\n        }\n        throw new Error('unexpected notification kind value');\n    };\n    Notification.createNext = function (value) {\n        if (typeof value !== 'undefined') {\n            return new Notification('N', value);\n        }\n        return Notification.undefinedValueNotification;\n    };\n    Notification.createError = function (err) {\n        return new Notification('E', undefined, err);\n    };\n    Notification.createComplete = function () {\n        return Notification.completeNotification;\n    };\n    Notification.completeNotification = new Notification('C');\n    Notification.undefinedValueNotification = new Notification('N', undefined);\n    return Notification;\n}());\nexport { Notification };\n//# sourceMappingURL=Notification.js.map","import { Observable } from '../Observable';\nexport function throwError(error, scheduler) {\n    if (!scheduler) {\n        return new Observable(function (subscriber) { return subscriber.error(error); });\n    }\n    else {\n        return new Observable(function (subscriber) { return scheduler.schedule(dispatch, 0, { error: error, subscriber: subscriber }); });\n    }\n}\nfunction dispatch(_a) {\n    var error = _a.error, subscriber = _a.subscriber;\n    subscriber.error(error);\n}\n//# sourceMappingURL=throwError.js.map","import { identity } from './identity';\nexport function pipe() {\n    var fns = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        fns[_i] = arguments[_i];\n    }\n    return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n    if (fns.length === 0) {\n        return identity;\n    }\n    if (fns.length === 1) {\n        return fns[0];\n    }\n    return function piped(input) {\n        return fns.reduce(function (prev, fn) { return fn(prev); }, input);\n    };\n}\n//# sourceMappingURL=pipe.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n    return function (source) { return source.lift(new DistinctUntilChangedOperator(compare, keySelector)); };\n}\nvar DistinctUntilChangedOperator = (function () {\n    function DistinctUntilChangedOperator(compare, keySelector) {\n        this.compare = compare;\n        this.keySelector = keySelector;\n    }\n    DistinctUntilChangedOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DistinctUntilChangedSubscriber(subscriber, this.compare, this.keySelector));\n    };\n    return DistinctUntilChangedOperator;\n}());\nvar DistinctUntilChangedSubscriber = (function (_super) {\n    __extends(DistinctUntilChangedSubscriber, _super);\n    function DistinctUntilChangedSubscriber(destination, compare, keySelector) {\n        var _this = _super.call(this, destination) || this;\n        _this.keySelector = keySelector;\n        _this.hasKey = false;\n        if (typeof compare === 'function') {\n            _this.compare = compare;\n        }\n        return _this;\n    }\n    DistinctUntilChangedSubscriber.prototype.compare = function (x, y) {\n        return x === y;\n    };\n    DistinctUntilChangedSubscriber.prototype._next = function (value) {\n        var key;\n        try {\n            var keySelector = this.keySelector;\n            key = keySelector ? keySelector(value) : value;\n        }\n        catch (err) {\n            return this.destination.error(err);\n        }\n        var result = false;\n        if (this.hasKey) {\n            try {\n                var compare = this.compare;\n                result = compare(this.key, key);\n            }\n            catch (err) {\n                return this.destination.error(err);\n            }\n        }\n        else {\n            this.hasKey = true;\n        }\n        if (!result) {\n            this.key = key;\n            this.destination.next(value);\n        }\n    };\n    return DistinctUntilChangedSubscriber;\n}(Subscriber));\n//# sourceMappingURL=distinctUntilChanged.js.map","export function isObject(x) {\n    return x !== null && typeof x === 'object';\n}\n//# sourceMappingURL=isObject.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from './Subscription';\nvar SubjectSubscription = (function (_super) {\n    __extends(SubjectSubscription, _super);\n    function SubjectSubscription(subject, subscriber) {\n        var _this = _super.call(this) || this;\n        _this.subject = subject;\n        _this.subscriber = subscriber;\n        _this.closed = false;\n        return _this;\n    }\n    SubjectSubscription.prototype.unsubscribe = function () {\n        if (this.closed) {\n            return;\n        }\n        this.closed = true;\n        var subject = this.subject;\n        var observers = subject.observers;\n        this.subject = null;\n        if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {\n            return;\n        }\n        var subscriberIndex = observers.indexOf(this.subscriber);\n        if (subscriberIndex !== -1) {\n            observers.splice(subscriberIndex, 1);\n        }\n    };\n    return SubjectSubscription;\n}(Subscription));\nexport { SubjectSubscription };\n//# sourceMappingURL=SubjectSubscription.js.map","export function identity(x) {\n    return x;\n}\n//# sourceMappingURL=identity.js.map","export var subscribeToArray = function (array) { return function (subscriber) {\n    for (var i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n        subscriber.next(array[i]);\n    }\n    subscriber.complete();\n}; };\n//# sourceMappingURL=subscribeToArray.js.map","export var isArrayLike = (function (x) { return x && typeof x.length === 'number' && typeof x !== 'function'; });\n//# sourceMappingURL=isArrayLike.js.map","export function isPromise(value) {\n    return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n//# sourceMappingURL=isPromise.js.map","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport var async = new AsyncScheduler(AsyncAction);\n//# sourceMappingURL=async.js.map","export default function _isString(x) {\n  return Object.prototype.toString.call(x) === '[object String]';\n}","import { __asyncValues, __awaiter, __generator } from \"tslib\";\nexport function subscribeToAsyncIterable(asyncIterable) {\n    return function (subscriber) {\n        process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });\n    };\n}\nfunction process(asyncIterable, subscriber) {\n    var asyncIterable_1, asyncIterable_1_1;\n    var e_1, _a;\n    return __awaiter(this, void 0, void 0, function () {\n        var value, e_1_1;\n        return __generator(this, function (_b) {\n            switch (_b.label) {\n                case 0:\n                    _b.trys.push([0, 5, 6, 11]);\n                    asyncIterable_1 = __asyncValues(asyncIterable);\n                    _b.label = 1;\n                case 1: return [4, asyncIterable_1.next()];\n                case 2:\n                    if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];\n                    value = asyncIterable_1_1.value;\n                    subscriber.next(value);\n                    _b.label = 3;\n                case 3: return [3, 1];\n                case 4: return [3, 11];\n                case 5:\n                    e_1_1 = _b.sent();\n                    e_1 = { error: e_1_1 };\n                    return [3, 11];\n                case 6:\n                    _b.trys.push([6, , 9, 10]);\n                    if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];\n                    return [4, _a.call(asyncIterable_1)];\n                case 7:\n                    _b.sent();\n                    _b.label = 8;\n                case 8: return [3, 10];\n                case 9:\n                    if (e_1) throw e_1.error;\n                    return [7];\n                case 10: return [7];\n                case 11:\n                    subscriber.complete();\n                    return [2];\n            }\n        });\n    });\n}\n//# sourceMappingURL=subscribeToAsyncIterable.js.map","import { subscribeToArray } from './subscribeToArray';\nimport { subscribeToPromise } from './subscribeToPromise';\nimport { subscribeToIterable } from './subscribeToIterable';\nimport { subscribeToObservable } from './subscribeToObservable';\nimport { isArrayLike } from './isArrayLike';\nimport { isPromise } from './isPromise';\nimport { isObject } from './isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { subscribeToAsyncIterable } from './subscribeToAsyncIterable';\nexport var subscribeTo = function (result) {\n    if (!!result && typeof result[Symbol_observable] === 'function') {\n        return subscribeToObservable(result);\n    }\n    else if (isArrayLike(result)) {\n        return subscribeToArray(result);\n    }\n    else if (isPromise(result)) {\n        return subscribeToPromise(result);\n    }\n    else if (!!result && typeof result[Symbol_iterator] === 'function') {\n        return subscribeToIterable(result);\n    }\n    else if (Symbol && Symbol.asyncIterator &&\n        !!result && typeof result[Symbol.asyncIterator] === 'function') {\n        return subscribeToAsyncIterable(result);\n    }\n    else {\n        var value = isObject(result) ? 'an invalid object' : \"'\" + result + \"'\";\n        var msg = \"You provided \" + value + \" where a stream was expected.\"\n            + ' You can provide an Observable, Promise, Array, or Iterable.';\n        throw new TypeError(msg);\n    }\n};\n//# sourceMappingURL=subscribeTo.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport var subscribeToObservable = function (obj) { return function (subscriber) {\n    var obs = obj[Symbol_observable]();\n    if (typeof obs.subscribe !== 'function') {\n        throw new TypeError('Provided object does not correctly implement Symbol.observable');\n    }\n    else {\n        return obs.subscribe(subscriber);\n    }\n}; };\n//# sourceMappingURL=subscribeToObservable.js.map","import { hostReportError } from './hostReportError';\nexport var subscribeToPromise = function (promise) { return function (subscriber) {\n    promise.then(function (value) {\n        if (!subscriber.closed) {\n            subscriber.next(value);\n            subscriber.complete();\n        }\n    }, function (err) { return subscriber.error(err); })\n        .then(null, hostReportError);\n    return subscriber;\n}; };\n//# sourceMappingURL=subscribeToPromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport var subscribeToIterable = function (iterable) { return function (subscriber) {\n    var iterator = iterable[Symbol_iterator]();\n    do {\n        var item = iterator.next();\n        if (item.done) {\n            subscriber.complete();\n            break;\n        }\n        subscriber.next(item.value);\n        if (subscriber.closed) {\n            break;\n        }\n    } while (true);\n    if (typeof iterator.return === 'function') {\n        subscriber.add(function () {\n            if (iterator.return) {\n                iterator.return();\n            }\n        });\n    }\n    return subscriber;\n}; };\n//# sourceMappingURL=subscribeToIterable.js.map","import { __extends } from \"tslib\";\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function mergeMap(project, resultSelector, concurrent) {\n    if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }\n    if (typeof resultSelector === 'function') {\n        return function (source) { return source.pipe(mergeMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent)); };\n    }\n    else if (typeof resultSelector === 'number') {\n        concurrent = resultSelector;\n    }\n    return function (source) { return source.lift(new MergeMapOperator(project, concurrent)); };\n}\nvar MergeMapOperator = (function () {\n    function MergeMapOperator(project, concurrent) {\n        if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }\n        this.project = project;\n        this.concurrent = concurrent;\n    }\n    MergeMapOperator.prototype.call = function (observer, source) {\n        return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));\n    };\n    return MergeMapOperator;\n}());\nexport { MergeMapOperator };\nvar MergeMapSubscriber = (function (_super) {\n    __extends(MergeMapSubscriber, _super);\n    function MergeMapSubscriber(destination, project, concurrent) {\n        if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }\n        var _this = _super.call(this, destination) || this;\n        _this.project = project;\n        _this.concurrent = concurrent;\n        _this.hasCompleted = false;\n        _this.buffer = [];\n        _this.active = 0;\n        _this.index = 0;\n        return _this;\n    }\n    MergeMapSubscriber.prototype._next = function (value) {\n        if (this.active < this.concurrent) {\n            this._tryNext(value);\n        }\n        else {\n            this.buffer.push(value);\n        }\n    };\n    MergeMapSubscriber.prototype._tryNext = function (value) {\n        var result;\n        var index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.active++;\n        this._innerSub(result, value, index);\n    };\n    MergeMapSubscriber.prototype._innerSub = function (ish, value, index) {\n        var innerSubscriber = new InnerSubscriber(this, value, index);\n        var destination = this.destination;\n        destination.add(innerSubscriber);\n        var innerSubscription = subscribeToResult(this, ish, undefined, undefined, innerSubscriber);\n        if (innerSubscription !== innerSubscriber) {\n            destination.add(innerSubscription);\n        }\n    };\n    MergeMapSubscriber.prototype._complete = function () {\n        this.hasCompleted = true;\n        if (this.active === 0 && this.buffer.length === 0) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    };\n    MergeMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    };\n    MergeMapSubscriber.prototype.notifyComplete = function (innerSub) {\n        var buffer = this.buffer;\n        this.remove(innerSub);\n        this.active--;\n        if (buffer.length > 0) {\n            this._next(buffer.shift());\n        }\n        else if (this.active === 0 && this.hasCompleted) {\n            this.destination.complete();\n        }\n    };\n    return MergeMapSubscriber;\n}(OuterSubscriber));\nexport { MergeMapSubscriber };\n//# sourceMappingURL=mergeMap.js.map","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent) {\n    if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }\n    return mergeMap(identity, concurrent);\n}\n//# sourceMappingURL=mergeAll.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function observeOn(scheduler, delay) {\n    if (delay === void 0) { delay = 0; }\n    return function observeOnOperatorFunction(source) {\n        return source.lift(new ObserveOnOperator(scheduler, delay));\n    };\n}\nvar ObserveOnOperator = (function () {\n    function ObserveOnOperator(scheduler, delay) {\n        if (delay === void 0) { delay = 0; }\n        this.scheduler = scheduler;\n        this.delay = delay;\n    }\n    ObserveOnOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ObserveOnSubscriber(subscriber, this.scheduler, this.delay));\n    };\n    return ObserveOnOperator;\n}());\nexport { ObserveOnOperator };\nvar ObserveOnSubscriber = (function (_super) {\n    __extends(ObserveOnSubscriber, _super);\n    function ObserveOnSubscriber(destination, scheduler, delay) {\n        if (delay === void 0) { delay = 0; }\n        var _this = _super.call(this, destination) || this;\n        _this.scheduler = scheduler;\n        _this.delay = delay;\n        return _this;\n    }\n    ObserveOnSubscriber.dispatch = function (arg) {\n        var notification = arg.notification, destination = arg.destination;\n        notification.observe(destination);\n        this.unsubscribe();\n    };\n    ObserveOnSubscriber.prototype.scheduleMessage = function (notification) {\n        var destination = this.destination;\n        destination.add(this.scheduler.schedule(ObserveOnSubscriber.dispatch, this.delay, new ObserveOnMessage(notification, this.destination)));\n    };\n    ObserveOnSubscriber.prototype._next = function (value) {\n        this.scheduleMessage(Notification.createNext(value));\n    };\n    ObserveOnSubscriber.prototype._error = function (err) {\n        this.scheduleMessage(Notification.createError(err));\n        this.unsubscribe();\n    };\n    ObserveOnSubscriber.prototype._complete = function () {\n        this.scheduleMessage(Notification.createComplete());\n        this.unsubscribe();\n    };\n    return ObserveOnSubscriber;\n}(Subscriber));\nexport { ObserveOnSubscriber };\nvar ObserveOnMessage = (function () {\n    function ObserveOnMessage(notification, destination) {\n        this.notification = notification;\n        this.destination = destination;\n    }\n    return ObserveOnMessage;\n}());\nexport { ObserveOnMessage };\n//# sourceMappingURL=observeOn.js.map","/*!\n * clipboard.js v2.0.6\n * https://clipboardjs.com/\n * \n * Licensed MIT © Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], 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ns;\n/******/ \t};\n/******/\n/******/ \t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t__webpack_require__.n = function(module) {\n/******/ \t\tvar getter = module && module.__esModule ?\n/******/ \t\t\tfunction getDefault() { return module['default']; } :\n/******/ \t\t\tfunction getModuleExports() { return module; };\n/******/ \t\t__webpack_require__.d(getter, 'a', getter);\n/******/ \t\treturn getter;\n/******/ \t};\n/******/\n/******/ \t// Object.prototype.hasOwnProperty.call\n/******/ \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 6);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports) {\n\nfunction select(element) {\n    var selectedText;\n\n    if (element.nodeName === 'SELECT') {\n        element.focus();\n\n        selectedText = element.value;\n    }\n    else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n        var isReadOnly = element.hasAttribute('readonly');\n\n        if (!isReadOnly) {\n            element.setAttribute('readonly', '');\n        }\n\n        element.select();\n        element.setSelectionRange(0, element.value.length);\n\n        if (!isReadOnly) {\n            element.removeAttribute('readonly');\n        }\n\n        selectedText = element.value;\n    }\n    else {\n        if (element.hasAttribute('contenteditable')) {\n            element.focus();\n        }\n\n        var selection = window.getSelection();\n        var range = document.createRange();\n\n        range.selectNodeContents(element);\n        selection.removeAllRanges();\n        selection.addRange(range);\n\n        selectedText = selection.toString();\n    }\n\n    return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports) {\n\nfunction E () {\n  // Keep this empty so it's easier to inherit from\n  // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n  on: function (name, callback, ctx) {\n    var e = this.e || (this.e = {});\n\n    (e[name] || (e[name] = [])).push({\n      fn: callback,\n      ctx: ctx\n    });\n\n    return this;\n  },\n\n  once: function (name, callback, ctx) {\n    var self = this;\n    function listener () {\n      self.off(name, listener);\n      callback.apply(ctx, arguments);\n    };\n\n    listener._ = callback\n    return this.on(name, listener, ctx);\n  },\n\n  emit: function (name) {\n    var data = [].slice.call(arguments, 1);\n    var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n    var i = 0;\n    var len = evtArr.length;\n\n    for (i; i < len; i++) {\n      evtArr[i].fn.apply(evtArr[i].ctx, data);\n    }\n\n    return this;\n  },\n\n  off: function (name, callback) {\n    var e = this.e || (this.e = {});\n    var evts = e[name];\n    var liveEvents = [];\n\n    if (evts && callback) {\n      for (var i = 0, len = evts.length; i < len; i++) {\n        if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n          liveEvents.push(evts[i]);\n      }\n    }\n\n    // Remove event from queue to prevent memory leak\n    // Suggested by https://github.com/lazd\n    // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n    (liveEvents.length)\n      ? e[name] = liveEvents\n      : delete e[name];\n\n    return this;\n  }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar is = __webpack_require__(3);\nvar delegate = __webpack_require__(4);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n    if (!target && !type && !callback) {\n        throw new Error('Missing required arguments');\n    }\n\n    if (!is.string(type)) {\n        throw new TypeError('Second argument must be a String');\n    }\n\n    if (!is.fn(callback)) {\n        throw new TypeError('Third argument must be a Function');\n    }\n\n    if (is.node(target)) {\n        return listenNode(target, type, callback);\n    }\n    else if (is.nodeList(target)) {\n        return listenNodeList(target, type, callback);\n    }\n    else if (is.string(target)) {\n        return listenSelector(target, type, callback);\n    }\n    else {\n        throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n    }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n    node.addEventListener(type, callback);\n\n    return {\n        destroy: function() {\n            node.removeEventListener(type, callback);\n        }\n    }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n    Array.prototype.forEach.call(nodeList, function(node) {\n        node.addEventListener(type, callback);\n    });\n\n    return {\n        destroy: function() {\n            Array.prototype.forEach.call(nodeList, function(node) {\n                node.removeEventListener(type, callback);\n            });\n        }\n    }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n    return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n    return value !== undefined\n        && value instanceof HTMLElement\n        && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n    var type = Object.prototype.toString.call(value);\n\n    return value !== undefined\n        && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n        && ('length' in value)\n        && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n    return typeof value === 'string'\n        || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n    var type = Object.prototype.toString.call(value);\n\n    return type === '[object Function]';\n};\n\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar closest = __webpack_require__(5);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n    var listenerFn = listener.apply(this, arguments);\n\n    element.addEventListener(type, listenerFn, useCapture);\n\n    return {\n        destroy: function() {\n            element.removeEventListener(type, listenerFn, useCapture);\n        }\n    }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n    // Handle the regular Element usage\n    if (typeof elements.addEventListener === 'function') {\n        return _delegate.apply(null, arguments);\n    }\n\n    // Handle Element-less usage, it defaults to global delegation\n    if (typeof type === 'function') {\n        // Use `document` as the first parameter, then apply arguments\n        // This is a short way to .unshift `arguments` without running into deoptimizations\n        return _delegate.bind(null, document).apply(null, arguments);\n    }\n\n    // Handle Selector-based usage\n    if (typeof elements === 'string') {\n        elements = document.querySelectorAll(elements);\n    }\n\n    // Handle Array-like based usage\n    return Array.prototype.map.call(elements, function (element) {\n        return _delegate(element, selector, type, callback, useCapture);\n    });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n    return function(e) {\n        e.delegateTarget = closest(e.target, selector);\n\n        if (e.delegateTarget) {\n            callback.call(element, e);\n        }\n    }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n    var proto = Element.prototype;\n\n    proto.matches = proto.matchesSelector ||\n                    proto.mozMatchesSelector ||\n                    proto.msMatchesSelector ||\n                    proto.oMatchesSelector ||\n                    proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n    while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n        if (typeof element.matches === 'function' &&\n            element.matches(selector)) {\n          return element;\n        }\n        element = element.parentNode;\n    }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(0);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n\n// CONCATENATED MODULE: ./src/clipboard-action.js\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n/**\n * Inner class which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n */\n\nvar clipboard_action_ClipboardAction = function () {\n    /**\n     * @param {Object} options\n     */\n    function ClipboardAction(options) {\n        _classCallCheck(this, ClipboardAction);\n\n        this.resolveOptions(options);\n        this.initSelection();\n    }\n\n    /**\n     * Defines base properties passed from constructor.\n     * @param {Object} options\n     */\n\n\n    _createClass(ClipboardAction, [{\n        key: 'resolveOptions',\n        value: function resolveOptions() {\n            var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n            this.action = options.action;\n            this.container = options.container;\n            this.emitter = options.emitter;\n            this.target = options.target;\n            this.text = options.text;\n            this.trigger = options.trigger;\n\n            this.selectedText = '';\n        }\n\n        /**\n         * Decides which selection strategy is going to be applied based\n         * on the existence of `text` and `target` properties.\n         */\n\n    }, {\n        key: 'initSelection',\n        value: function initSelection() {\n            if (this.text) {\n                this.selectFake();\n            } else if (this.target) {\n                this.selectTarget();\n            }\n        }\n\n        /**\n         * Creates a fake textarea element, sets its value from `text` property,\n         * and makes a selection on it.\n         */\n\n    }, {\n        key: 'selectFake',\n        value: function selectFake() {\n            var _this = this;\n\n            var isRTL = document.documentElement.getAttribute('dir') == 'rtl';\n\n            this.removeFake();\n\n            this.fakeHandlerCallback = function () {\n                return _this.removeFake();\n            };\n            this.fakeHandler = this.container.addEventListener('click', this.fakeHandlerCallback) || true;\n\n            this.fakeElem = document.createElement('textarea');\n            // Prevent zooming on iOS\n            this.fakeElem.style.fontSize = '12pt';\n            // Reset box model\n            this.fakeElem.style.border = '0';\n            this.fakeElem.style.padding = '0';\n            this.fakeElem.style.margin = '0';\n            // Move element out of screen horizontally\n            this.fakeElem.style.position = 'absolute';\n            this.fakeElem.style[isRTL ? 'right' : 'left'] = '-9999px';\n            // Move element to the same position vertically\n            var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n            this.fakeElem.style.top = yPosition + 'px';\n\n            this.fakeElem.setAttribute('readonly', '');\n            this.fakeElem.value = this.text;\n\n            this.container.appendChild(this.fakeElem);\n\n            this.selectedText = select_default()(this.fakeElem);\n            this.copyText();\n        }\n\n        /**\n         * Only removes the fake element after another click event, that way\n         * a user can hit `Ctrl+C` to copy because selection still exists.\n         */\n\n    }, {\n        key: 'removeFake',\n        value: function removeFake() {\n            if (this.fakeHandler) {\n                this.container.removeEventListener('click', this.fakeHandlerCallback);\n                this.fakeHandler = null;\n                this.fakeHandlerCallback = null;\n            }\n\n            if (this.fakeElem) {\n                this.container.removeChild(this.fakeElem);\n                this.fakeElem = null;\n            }\n        }\n\n        /**\n         * Selects the content from element passed on `target` property.\n         */\n\n    }, {\n        key: 'selectTarget',\n        value: function selectTarget() {\n            this.selectedText = select_default()(this.target);\n            this.copyText();\n        }\n\n        /**\n         * Executes the copy operation based on the current selection.\n         */\n\n    }, {\n        key: 'copyText',\n        value: function copyText() {\n            var succeeded = void 0;\n\n            try {\n                succeeded = document.execCommand(this.action);\n            } catch (err) {\n                succeeded = false;\n            }\n\n            this.handleResult(succeeded);\n        }\n\n        /**\n         * Fires an event based on the copy operation result.\n         * @param {Boolean} succeeded\n         */\n\n    }, {\n        key: 'handleResult',\n        value: function handleResult(succeeded) {\n            this.emitter.emit(succeeded ? 'success' : 'error', {\n                action: this.action,\n                text: this.selectedText,\n                trigger: this.trigger,\n                clearSelection: this.clearSelection.bind(this)\n            });\n        }\n\n        /**\n         * Moves focus away from `target` and back to the trigger, removes current selection.\n         */\n\n    }, {\n        key: 'clearSelection',\n        value: function clearSelection() {\n            if (this.trigger) {\n                this.trigger.focus();\n            }\n            document.activeElement.blur();\n            window.getSelection().removeAllRanges();\n        }\n\n        /**\n         * Sets the `action` to be performed which can be either 'copy' or 'cut'.\n         * @param {String} action\n         */\n\n    }, {\n        key: 'destroy',\n\n\n        /**\n         * Destroy lifecycle.\n         */\n        value: function destroy() {\n            this.removeFake();\n        }\n    }, {\n        key: 'action',\n        set: function set() {\n            var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'copy';\n\n            this._action = action;\n\n            if (this._action !== 'copy' && this._action !== 'cut') {\n                throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n            }\n        }\n\n        /**\n         * Gets the `action` property.\n         * @return {String}\n         */\n        ,\n        get: function get() {\n            return this._action;\n        }\n\n        /**\n         * Sets the `target` property using an element\n         * that will be have its content copied.\n         * @param {Element} target\n         */\n\n    }, {\n        key: 'target',\n        set: function set(target) {\n            if (target !== undefined) {\n                if (target && (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && target.nodeType === 1) {\n                    if (this.action === 'copy' && target.hasAttribute('disabled')) {\n                        throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n                    }\n\n                    if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n                        throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n                    }\n\n                    this._target = target;\n                } else {\n                    throw new Error('Invalid \"target\" value, use a valid Element');\n                }\n            }\n        }\n\n        /**\n         * Gets the `target` property.\n         * @return {String|HTMLElement}\n         */\n        ,\n        get: function get() {\n            return this._target;\n        }\n    }]);\n\n    return ClipboardAction;\n}();\n\n/* harmony default export */ var clipboard_action = (clipboard_action_ClipboardAction);\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(1);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(2);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n\n// CONCATENATED MODULE: ./src/clipboard.js\nvar clipboard_typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar clipboard_createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction clipboard_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\n\n\n\n\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\nvar clipboard_Clipboard = function (_Emitter) {\n    _inherits(Clipboard, _Emitter);\n\n    /**\n     * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n     * @param {Object} options\n     */\n    function Clipboard(trigger, options) {\n        clipboard_classCallCheck(this, Clipboard);\n\n        var _this = _possibleConstructorReturn(this, (Clipboard.__proto__ || Object.getPrototypeOf(Clipboard)).call(this));\n\n        _this.resolveOptions(options);\n        _this.listenClick(trigger);\n        return _this;\n    }\n\n    /**\n     * Defines if attributes would be resolved using internal setter functions\n     * or custom functions that were passed in the constructor.\n     * @param {Object} options\n     */\n\n\n    clipboard_createClass(Clipboard, [{\n        key: 'resolveOptions',\n        value: function resolveOptions() {\n            var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n            this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n            this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n            this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n            this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n        }\n\n        /**\n         * Adds a click event listener to the passed trigger.\n         * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n         */\n\n    }, {\n        key: 'listenClick',\n        value: function listenClick(trigger) {\n            var _this2 = this;\n\n            this.listener = listen_default()(trigger, 'click', function (e) {\n                return _this2.onClick(e);\n            });\n        }\n\n        /**\n         * Defines a new `ClipboardAction` on each click event.\n         * @param {Event} e\n         */\n\n    }, {\n        key: 'onClick',\n        value: function onClick(e) {\n            var trigger = e.delegateTarget || e.currentTarget;\n\n            if (this.clipboardAction) {\n                this.clipboardAction = null;\n            }\n\n            this.clipboardAction = new clipboard_action({\n                action: this.action(trigger),\n                target: this.target(trigger),\n                text: this.text(trigger),\n                container: this.container,\n                trigger: trigger,\n                emitter: this\n            });\n        }\n\n        /**\n         * Default `action` lookup function.\n         * @param {Element} trigger\n         */\n\n    }, {\n        key: 'defaultAction',\n        value: function defaultAction(trigger) {\n            return getAttributeValue('action', trigger);\n        }\n\n        /**\n         * Default `target` lookup function.\n         * @param {Element} trigger\n         */\n\n    }, {\n        key: 'defaultTarget',\n        value: function defaultTarget(trigger) {\n            var selector = getAttributeValue('target', trigger);\n\n            if (selector) {\n                return document.querySelector(selector);\n            }\n        }\n\n        /**\n         * Returns the support of the given action, or all actions if no action is\n         * given.\n         * @param {String} [action]\n         */\n\n    }, {\n        key: 'defaultText',\n\n\n        /**\n         * Default `text` lookup function.\n         * @param {Element} trigger\n         */\n        value: function defaultText(trigger) {\n            return getAttributeValue('text', trigger);\n        }\n\n        /**\n         * Destroy lifecycle.\n         */\n\n    }, {\n        key: 'destroy',\n        value: function destroy() {\n            this.listener.destroy();\n\n            if (this.clipboardAction) {\n                this.clipboardAction.destroy();\n                this.clipboardAction = null;\n            }\n        }\n    }], [{\n        key: 'isSupported',\n        value: function isSupported() {\n            var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n\n            var actions = typeof action === 'string' ? [action] : action;\n            var support = !!document.queryCommandSupported;\n\n            actions.forEach(function (action) {\n                support = support && !!document.queryCommandSupported(action);\n            });\n\n            return support;\n        }\n    }]);\n\n    return Clipboard;\n}(tiny_emitter_default.a);\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\n\nfunction getAttributeValue(suffix, element) {\n    var attribute = 'data-clipboard-' + suffix;\n\n    if (!element.hasAttribute(attribute)) {\n        return;\n    }\n\n    return element.getAttribute(attribute);\n}\n\n/* harmony default export */ var clipboard = __webpack_exports__[\"default\"] = (clipboard_Clipboard);\n\n/***/ })\n/******/ ])[\"default\"];\n});","import { __extends } from \"tslib\";\nimport { isScheduler } from '../util/isScheduler';\nimport { isArray } from '../util/isArray';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { fromArray } from './fromArray';\nvar NONE = {};\nexport function combineLatest() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    var resultSelector = undefined;\n    var scheduler = undefined;\n    if (isScheduler(observables[observables.length - 1])) {\n        scheduler = observables.pop();\n    }\n    if (typeof observables[observables.length - 1] === 'function') {\n        resultSelector = observables.pop();\n    }\n    if (observables.length === 1 && isArray(observables[0])) {\n        observables = observables[0];\n    }\n    return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));\n}\nvar CombineLatestOperator = (function () {\n    function CombineLatestOperator(resultSelector) {\n        this.resultSelector = resultSelector;\n    }\n    CombineLatestOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));\n    };\n    return CombineLatestOperator;\n}());\nexport { CombineLatestOperator };\nvar CombineLatestSubscriber = (function (_super) {\n    __extends(CombineLatestSubscriber, _super);\n    function CombineLatestSubscriber(destination, resultSelector) {\n        var _this = _super.call(this, destination) || this;\n        _this.resultSelector = resultSelector;\n        _this.active = 0;\n        _this.values = [];\n        _this.observables = [];\n        return _this;\n    }\n    CombineLatestSubscriber.prototype._next = function (observable) {\n        this.values.push(NONE);\n        this.observables.push(observable);\n    };\n    CombineLatestSubscriber.prototype._complete = function () {\n        var observables = this.observables;\n        var len = observables.length;\n        if (len === 0) {\n            this.destination.complete();\n        }\n        else {\n            this.active = len;\n            this.toRespond = len;\n            for (var i = 0; i < len; i++) {\n                var observable = observables[i];\n                this.add(subscribeToResult(this, observable, observable, i));\n            }\n        }\n    };\n    CombineLatestSubscriber.prototype.notifyComplete = function (unused) {\n        if ((this.active -= 1) === 0) {\n            this.destination.complete();\n        }\n    };\n    CombineLatestSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        var values = this.values;\n        var oldVal = values[outerIndex];\n        var toRespond = !this.toRespond\n            ? 0\n            : oldVal === NONE ? --this.toRespond : this.toRespond;\n        values[outerIndex] = innerValue;\n        if (toRespond === 0) {\n            if (this.resultSelector) {\n                this._tryResultSelector(values);\n            }\n            else {\n                this.destination.next(values.slice());\n            }\n        }\n    };\n    CombineLatestSubscriber.prototype._tryResultSelector = function (values) {\n        var result;\n        try {\n            result = this.resultSelector.apply(this, values);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return CombineLatestSubscriber;\n}(OuterSubscriber));\nexport { CombineLatestSubscriber };\n//# sourceMappingURL=combineLatest.js.map","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","/**\r\n * A collection of shims that provide minimal functionality of the ES6 collections.\r\n *\r\n * These implementations are not meant to be used outside of the ResizeObserver\r\n * modules as they cover only a limited range of use cases.\r\n */\r\n/* eslint-disable require-jsdoc, valid-jsdoc */\r\nvar MapShim = (function () {\r\n    if (typeof Map !== 'undefined') {\r\n        return Map;\r\n    }\r\n    /**\r\n     * Returns index in provided array that matches the specified key.\r\n     *\r\n     * @param {Array<Array>} arr\r\n     * @param {*} key\r\n     * @returns {number}\r\n     */\r\n    function getIndex(arr, key) {\r\n        var result = -1;\r\n        arr.some(function (entry, index) {\r\n            if (entry[0] === key) {\r\n                result = index;\r\n                return true;\r\n            }\r\n            return false;\r\n        });\r\n        return result;\r\n    }\r\n    return /** @class */ (function () {\r\n        function class_1() {\r\n            this.__entries__ = [];\r\n        }\r\n        Object.defineProperty(class_1.prototype, \"size\", {\r\n            /**\r\n             * @returns {boolean}\r\n             */\r\n            get: function () {\r\n                return this.__entries__.length;\r\n            },\r\n            enumerable: true,\r\n            configurable: true\r\n        });\r\n        /**\r\n         * @param {*} key\r\n         * @returns {*}\r\n         */\r\n        class_1.prototype.get = function (key) {\r\n            var index = getIndex(this.__entries__, key);\r\n            var entry = this.__entries__[index];\r\n            return entry && entry[1];\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @param {*} value\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.set = function (key, value) {\r\n            var index = getIndex(this.__entries__, key);\r\n            if (~index) {\r\n                this.__entries__[index][1] = value;\r\n            }\r\n            else {\r\n                this.__entries__.push([key, value]);\r\n            }\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.delete = function (key) {\r\n            var entries = this.__entries__;\r\n            var index = getIndex(entries, key);\r\n            if (~index) {\r\n                entries.splice(index, 1);\r\n            }\r\n        };\r\n        /**\r\n         * @param {*} key\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.has = function (key) {\r\n            return !!~getIndex(this.__entries__, key);\r\n        };\r\n        /**\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.clear = function () {\r\n            this.__entries__.splice(0);\r\n        };\r\n        /**\r\n         * @param {Function} callback\r\n         * @param {*} [ctx=null]\r\n         * @returns {void}\r\n         */\r\n        class_1.prototype.forEach = function (callback, ctx) {\r\n            if (ctx === void 0) { ctx = null; }\r\n            for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n                var entry = _a[_i];\r\n                callback.call(ctx, entry[1], entry[0]);\r\n            }\r\n        };\r\n        return class_1;\r\n    }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n    if (typeof global !== 'undefined' && global.Math === Math) {\r\n        return global;\r\n    }\r\n    if (typeof self !== 'undefined' && self.Math === Math) {\r\n        return self;\r\n    }\r\n    if (typeof window !== 'undefined' && window.Math === Math) {\r\n        return window;\r\n    }\r\n    // eslint-disable-next-line no-new-func\r\n    return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n    if (typeof requestAnimationFrame === 'function') {\r\n        // It's required to use a bounded function because IE sometimes throws\r\n        // an \"Invalid calling object\" error if rAF is invoked without the global\r\n        // object on the left hand side.\r\n        return requestAnimationFrame.bind(global$1);\r\n    }\r\n    return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n    var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n    /**\r\n     * Invokes the original callback function and schedules new invocation if\r\n     * the \"proxy\" was called during current request.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function resolvePending() {\r\n        if (leadingCall) {\r\n            leadingCall = false;\r\n            callback();\r\n        }\r\n        if (trailingCall) {\r\n            proxy();\r\n        }\r\n    }\r\n    /**\r\n     * Callback invoked after the specified delay. It will further postpone\r\n     * invocation of the original function delegating it to the\r\n     * requestAnimationFrame.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function timeoutCallback() {\r\n        requestAnimationFrame$1(resolvePending);\r\n    }\r\n    /**\r\n     * Schedules invocation of the original function.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    function proxy() {\r\n        var timeStamp = Date.now();\r\n        if (leadingCall) {\r\n            // Reject immediately following calls.\r\n            if (timeStamp - lastCallTime < trailingTimeout) {\r\n                return;\r\n            }\r\n            // Schedule new call to be in invoked when the pending one is resolved.\r\n            // This is important for \"transitions\" which never actually start\r\n            // immediately so there is a chance that we might miss one if change\r\n            // happens amids the pending invocation.\r\n            trailingCall = true;\r\n        }\r\n        else {\r\n            leadingCall = true;\r\n            trailingCall = false;\r\n            setTimeout(timeoutCallback, delay);\r\n        }\r\n        lastCallTime = timeStamp;\r\n    }\r\n    return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserverController.\r\n     *\r\n     * @private\r\n     */\r\n    function ResizeObserverController() {\r\n        /**\r\n         * Indicates whether DOM listeners have been added.\r\n         *\r\n         * @private {boolean}\r\n         */\r\n        this.connected_ = false;\r\n        /**\r\n         * Tells that controller has subscribed for Mutation Events.\r\n         *\r\n         * @private {boolean}\r\n         */\r\n        this.mutationEventsAdded_ = false;\r\n        /**\r\n         * Keeps reference to the instance of MutationObserver.\r\n         *\r\n         * @private {MutationObserver}\r\n         */\r\n        this.mutationsObserver_ = null;\r\n        /**\r\n         * A list of connected observers.\r\n         *\r\n         * @private {Array<ResizeObserverSPI>}\r\n         */\r\n        this.observers_ = [];\r\n        this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n        this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n    }\r\n    /**\r\n     * Adds observer to observers list.\r\n     *\r\n     * @param {ResizeObserverSPI} observer - Observer to be added.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.addObserver = function (observer) {\r\n        if (!~this.observers_.indexOf(observer)) {\r\n            this.observers_.push(observer);\r\n        }\r\n        // Add listeners if they haven't been added yet.\r\n        if (!this.connected_) {\r\n            this.connect_();\r\n        }\r\n    };\r\n    /**\r\n     * Removes observer from observers list.\r\n     *\r\n     * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.removeObserver = function (observer) {\r\n        var observers = this.observers_;\r\n        var index = observers.indexOf(observer);\r\n        // Remove observer if it's present in registry.\r\n        if (~index) {\r\n            observers.splice(index, 1);\r\n        }\r\n        // Remove listeners if controller has no connected observers.\r\n        if (!observers.length && this.connected_) {\r\n            this.disconnect_();\r\n        }\r\n    };\r\n    /**\r\n     * Invokes the update of observers. It will continue running updates insofar\r\n     * it detects changes.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.refresh = function () {\r\n        var changesDetected = this.updateObservers_();\r\n        // Continue running updates if changes have been detected as there might\r\n        // be future ones caused by CSS transitions.\r\n        if (changesDetected) {\r\n            this.refresh();\r\n        }\r\n    };\r\n    /**\r\n     * Updates every observer from observers list and notifies them of queued\r\n     * entries.\r\n     *\r\n     * @private\r\n     * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n     *      dimensions of it's elements.\r\n     */\r\n    ResizeObserverController.prototype.updateObservers_ = function () {\r\n        // Collect observers that have active observations.\r\n        var activeObservers = this.observers_.filter(function (observer) {\r\n            return observer.gatherActive(), observer.hasActive();\r\n        });\r\n        // Deliver notifications in a separate cycle in order to avoid any\r\n        // collisions between observers, e.g. when multiple instances of\r\n        // ResizeObserver are tracking the same element and the callback of one\r\n        // of them changes content dimensions of the observed target. Sometimes\r\n        // this may result in notifications being blocked for the rest of observers.\r\n        activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n        return activeObservers.length > 0;\r\n    };\r\n    /**\r\n     * Initializes DOM listeners.\r\n     *\r\n     * @private\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.connect_ = function () {\r\n        // Do nothing if running in a non-browser environment or if listeners\r\n        // have been already added.\r\n        if (!isBrowser || this.connected_) {\r\n            return;\r\n        }\r\n        // Subscription to the \"Transitionend\" event is used as a workaround for\r\n        // delayed transitions. This way it's possible to capture at least the\r\n        // final state of an element.\r\n        document.addEventListener('transitionend', this.onTransitionEnd_);\r\n        window.addEventListener('resize', this.refresh);\r\n        if (mutationObserverSupported) {\r\n            this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n            this.mutationsObserver_.observe(document, {\r\n                attributes: true,\r\n                childList: true,\r\n                characterData: true,\r\n                subtree: true\r\n            });\r\n        }\r\n        else {\r\n            document.addEventListener('DOMSubtreeModified', this.refresh);\r\n            this.mutationEventsAdded_ = true;\r\n        }\r\n        this.connected_ = true;\r\n    };\r\n    /**\r\n     * Removes DOM listeners.\r\n     *\r\n     * @private\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.disconnect_ = function () {\r\n        // Do nothing if running in a non-browser environment or if listeners\r\n        // have been already removed.\r\n        if (!isBrowser || !this.connected_) {\r\n            return;\r\n        }\r\n        document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n        window.removeEventListener('resize', this.refresh);\r\n        if (this.mutationsObserver_) {\r\n            this.mutationsObserver_.disconnect();\r\n        }\r\n        if (this.mutationEventsAdded_) {\r\n            document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n        }\r\n        this.mutationsObserver_ = null;\r\n        this.mutationEventsAdded_ = false;\r\n        this.connected_ = false;\r\n    };\r\n    /**\r\n     * \"Transitionend\" event handler.\r\n     *\r\n     * @private\r\n     * @param {TransitionEvent} event\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n        var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n        // Detect whether transition may affect dimensions of an element.\r\n        var isReflowProperty = transitionKeys.some(function (key) {\r\n            return !!~propertyName.indexOf(key);\r\n        });\r\n        if (isReflowProperty) {\r\n            this.refresh();\r\n        }\r\n    };\r\n    /**\r\n     * Returns instance of the ResizeObserverController.\r\n     *\r\n     * @returns {ResizeObserverController}\r\n     */\r\n    ResizeObserverController.getInstance = function () {\r\n        if (!this.instance_) {\r\n            this.instance_ = new ResizeObserverController();\r\n        }\r\n        return this.instance_;\r\n    };\r\n    /**\r\n     * Holds reference to the controller's instance.\r\n     *\r\n     * @private {ResizeObserverController}\r\n     */\r\n    ResizeObserverController.instance_ = null;\r\n    return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n    for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n        var key = _a[_i];\r\n        Object.defineProperty(target, key, {\r\n            value: props[key],\r\n            enumerable: false,\r\n            writable: false,\r\n            configurable: true\r\n        });\r\n    }\r\n    return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n    // Assume that the element is an instance of Node, which means that it\r\n    // has the \"ownerDocument\" property from which we can retrieve a\r\n    // corresponding global object.\r\n    var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n    // Return the local global object if it's not possible extract one from\r\n    // provided element.\r\n    return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n    return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n    var positions = [];\r\n    for (var _i = 1; _i < arguments.length; _i++) {\r\n        positions[_i - 1] = arguments[_i];\r\n    }\r\n    return positions.reduce(function (size, position) {\r\n        var value = styles['border-' + position + '-width'];\r\n        return size + toFloat(value);\r\n    }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n    var positions = ['top', 'right', 'bottom', 'left'];\r\n    var paddings = {};\r\n    for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n        var position = positions_1[_i];\r\n        var value = styles['padding-' + position];\r\n        paddings[position] = toFloat(value);\r\n    }\r\n    return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n *      to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n    var bbox = target.getBBox();\r\n    return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n    // Client width & height properties can't be\r\n    // used exclusively as they provide rounded values.\r\n    var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n    // By this condition we can catch all non-replaced inline, hidden and\r\n    // detached elements. Though elements with width & height properties less\r\n    // than 0.5 will be discarded as well.\r\n    //\r\n    // Without it we would need to implement separate methods for each of\r\n    // those cases and it's not possible to perform a precise and performance\r\n    // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n    // gives wrong results for elements with width & height less than 0.5.\r\n    if (!clientWidth && !clientHeight) {\r\n        return emptyRect;\r\n    }\r\n    var styles = getWindowOf(target).getComputedStyle(target);\r\n    var paddings = getPaddings(styles);\r\n    var horizPad = paddings.left + paddings.right;\r\n    var vertPad = paddings.top + paddings.bottom;\r\n    // Computed styles of width & height are being used because they are the\r\n    // only dimensions available to JS that contain non-rounded values. It could\r\n    // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n    // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n    var width = toFloat(styles.width), height = toFloat(styles.height);\r\n    // Width & height include paddings and borders when the 'border-box' box\r\n    // model is applied (except for IE).\r\n    if (styles.boxSizing === 'border-box') {\r\n        // Following conditions are required to handle Internet Explorer which\r\n        // doesn't include paddings and borders to computed CSS dimensions.\r\n        //\r\n        // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n        // properties then it's either IE, and thus we don't need to subtract\r\n        // anything, or an element merely doesn't have paddings/borders styles.\r\n        if (Math.round(width + horizPad) !== clientWidth) {\r\n            width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n        }\r\n        if (Math.round(height + vertPad) !== clientHeight) {\r\n            height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n        }\r\n    }\r\n    // Following steps can't be applied to the document's root element as its\r\n    // client[Width/Height] properties represent viewport area of the window.\r\n    // Besides, it's as well not necessary as the <html> itself neither has\r\n    // rendered scroll bars nor it can be clipped.\r\n    if (!isDocumentElement(target)) {\r\n        // In some browsers (only in Firefox, actually) CSS width & height\r\n        // include scroll bars size which can be removed at this step as scroll\r\n        // bars are the only difference between rounded dimensions + paddings\r\n        // and \"client\" properties, though that is not always true in Chrome.\r\n        var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n        var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n        // Chrome has a rather weird rounding of \"client\" properties.\r\n        // E.g. for an element with content width of 314.2px it sometimes gives\r\n        // the client width of 315px and for the width of 314.7px it may give\r\n        // 314px. And it doesn't happen all the time. So just ignore this delta\r\n        // as a non-relevant.\r\n        if (Math.abs(vertScrollbar) !== 1) {\r\n            width -= vertScrollbar;\r\n        }\r\n        if (Math.abs(horizScrollbar) !== 1) {\r\n            height -= horizScrollbar;\r\n        }\r\n    }\r\n    return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n    // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n    // interface.\r\n    if (typeof SVGGraphicsElement !== 'undefined') {\r\n        return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n    }\r\n    // If it's so, then check that element is at least an instance of the\r\n    // SVGElement and that it has the \"getBBox\" method.\r\n    // eslint-disable-next-line no-extra-parens\r\n    return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n        typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element (<html>).\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n    return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n    if (!isBrowser) {\r\n        return emptyRect;\r\n    }\r\n    if (isSVGGraphicsElement(target)) {\r\n        return getSVGContentRect(target);\r\n    }\r\n    return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n    var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n    // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n    var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n    var rect = Object.create(Constr.prototype);\r\n    // Rectangle's properties are not writable and non-enumerable.\r\n    defineConfigurable(rect, {\r\n        x: x, y: y, width: width, height: height,\r\n        top: y,\r\n        right: x + width,\r\n        bottom: height + y,\r\n        left: x\r\n    });\r\n    return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n    return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n    /**\r\n     * Creates an instance of ResizeObservation.\r\n     *\r\n     * @param {Element} target - Element to be observed.\r\n     */\r\n    function ResizeObservation(target) {\r\n        /**\r\n         * Broadcasted width of content rectangle.\r\n         *\r\n         * @type {number}\r\n         */\r\n        this.broadcastWidth = 0;\r\n        /**\r\n         * Broadcasted height of content rectangle.\r\n         *\r\n         * @type {number}\r\n         */\r\n        this.broadcastHeight = 0;\r\n        /**\r\n         * Reference to the last observed content rectangle.\r\n         *\r\n         * @private {DOMRectInit}\r\n         */\r\n        this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n        this.target = target;\r\n    }\r\n    /**\r\n     * Updates content rectangle and tells whether it's width or height properties\r\n     * have changed since the last broadcast.\r\n     *\r\n     * @returns {boolean}\r\n     */\r\n    ResizeObservation.prototype.isActive = function () {\r\n        var rect = getContentRect(this.target);\r\n        this.contentRect_ = rect;\r\n        return (rect.width !== this.broadcastWidth ||\r\n            rect.height !== this.broadcastHeight);\r\n    };\r\n    /**\r\n     * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n     * from the corresponding properties of the last observed content rectangle.\r\n     *\r\n     * @returns {DOMRectInit} Last observed content rectangle.\r\n     */\r\n    ResizeObservation.prototype.broadcastRect = function () {\r\n        var rect = this.contentRect_;\r\n        this.broadcastWidth = rect.width;\r\n        this.broadcastHeight = rect.height;\r\n        return rect;\r\n    };\r\n    return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n    /**\r\n     * Creates an instance of ResizeObserverEntry.\r\n     *\r\n     * @param {Element} target - Element that is being observed.\r\n     * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n     */\r\n    function ResizeObserverEntry(target, rectInit) {\r\n        var contentRect = createReadOnlyRect(rectInit);\r\n        // According to the specification following properties are not writable\r\n        // and are also not enumerable in the native implementation.\r\n        //\r\n        // Property accessors are not being used as they'd require to define a\r\n        // private WeakMap storage which may cause memory leaks in browsers that\r\n        // don't support this type of collections.\r\n        defineConfigurable(this, { target: target, contentRect: contentRect });\r\n    }\r\n    return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserver.\r\n     *\r\n     * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n     *      when one of the observed elements changes it's content dimensions.\r\n     * @param {ResizeObserverController} controller - Controller instance which\r\n     *      is responsible for the updates of observer.\r\n     * @param {ResizeObserver} callbackCtx - Reference to the public\r\n     *      ResizeObserver instance which will be passed to callback function.\r\n     */\r\n    function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n        /**\r\n         * Collection of resize observations that have detected changes in dimensions\r\n         * of elements.\r\n         *\r\n         * @private {Array<ResizeObservation>}\r\n         */\r\n        this.activeObservations_ = [];\r\n        /**\r\n         * Registry of the ResizeObservation instances.\r\n         *\r\n         * @private {Map<Element, ResizeObservation>}\r\n         */\r\n        this.observations_ = new MapShim();\r\n        if (typeof callback !== 'function') {\r\n            throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n        }\r\n        this.callback_ = callback;\r\n        this.controller_ = controller;\r\n        this.callbackCtx_ = callbackCtx;\r\n    }\r\n    /**\r\n     * Starts observing provided element.\r\n     *\r\n     * @param {Element} target - Element to be observed.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.observe = function (target) {\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        // Do nothing if current environment doesn't have the Element interface.\r\n        if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n            return;\r\n        }\r\n        if (!(target instanceof getWindowOf(target).Element)) {\r\n            throw new TypeError('parameter 1 is not of type \"Element\".');\r\n        }\r\n        var observations = this.observations_;\r\n        // Do nothing if element is already being observed.\r\n        if (observations.has(target)) {\r\n            return;\r\n        }\r\n        observations.set(target, new ResizeObservation(target));\r\n        this.controller_.addObserver(this);\r\n        // Force the update of observations.\r\n        this.controller_.refresh();\r\n    };\r\n    /**\r\n     * Stops observing provided element.\r\n     *\r\n     * @param {Element} target - Element to stop observing.\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.unobserve = function (target) {\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        // Do nothing if current environment doesn't have the Element interface.\r\n        if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n            return;\r\n        }\r\n        if (!(target instanceof getWindowOf(target).Element)) {\r\n            throw new TypeError('parameter 1 is not of type \"Element\".');\r\n        }\r\n        var observations = this.observations_;\r\n        // Do nothing if element is not being observed.\r\n        if (!observations.has(target)) {\r\n            return;\r\n        }\r\n        observations.delete(target);\r\n        if (!observations.size) {\r\n            this.controller_.removeObserver(this);\r\n        }\r\n    };\r\n    /**\r\n     * Stops observing all elements.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.disconnect = function () {\r\n        this.clearActive();\r\n        this.observations_.clear();\r\n        this.controller_.removeObserver(this);\r\n    };\r\n    /**\r\n     * Collects observation instances the associated element of which has changed\r\n     * it's content rectangle.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.gatherActive = function () {\r\n        var _this = this;\r\n        this.clearActive();\r\n        this.observations_.forEach(function (observation) {\r\n            if (observation.isActive()) {\r\n                _this.activeObservations_.push(observation);\r\n            }\r\n        });\r\n    };\r\n    /**\r\n     * Invokes initial callback function with a list of ResizeObserverEntry\r\n     * instances collected from active resize observations.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.broadcastActive = function () {\r\n        // Do nothing if observer doesn't have active observations.\r\n        if (!this.hasActive()) {\r\n            return;\r\n        }\r\n        var ctx = this.callbackCtx_;\r\n        // Create ResizeObserverEntry instance for every active observation.\r\n        var entries = this.activeObservations_.map(function (observation) {\r\n            return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n        });\r\n        this.callback_.call(ctx, entries, ctx);\r\n        this.clearActive();\r\n    };\r\n    /**\r\n     * Clears the collection of active observations.\r\n     *\r\n     * @returns {void}\r\n     */\r\n    ResizeObserverSPI.prototype.clearActive = function () {\r\n        this.activeObservations_.splice(0);\r\n    };\r\n    /**\r\n     * Tells whether observer has active observations.\r\n     *\r\n     * @returns {boolean}\r\n     */\r\n    ResizeObserverSPI.prototype.hasActive = function () {\r\n        return this.activeObservations_.length > 0;\r\n    };\r\n    return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n    /**\r\n     * Creates a new instance of ResizeObserver.\r\n     *\r\n     * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n     *      dimensions of the observed elements change.\r\n     */\r\n    function ResizeObserver(callback) {\r\n        if (!(this instanceof ResizeObserver)) {\r\n            throw new TypeError('Cannot call a class as a function.');\r\n        }\r\n        if (!arguments.length) {\r\n            throw new TypeError('1 argument required, but only 0 present.');\r\n        }\r\n        var controller = ResizeObserverController.getInstance();\r\n        var observer = new ResizeObserverSPI(callback, controller, this);\r\n        observers.set(this, observer);\r\n    }\r\n    return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n    'observe',\r\n    'unobserve',\r\n    'disconnect'\r\n].forEach(function (method) {\r\n    ResizeObserver.prototype[method] = function () {\r\n        var _a;\r\n        return (_a = observers.get(this))[method].apply(_a, arguments);\r\n    };\r\n});\n\nvar index = (function () {\r\n    // Export existing implementation if available.\r\n    if (typeof global$1.ResizeObserver !== 'undefined') {\r\n        return global$1.ResizeObserver;\r\n    }\r\n    return ResizeObserver;\r\n})();\n\nexport default index;\n","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param  {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n  var str = '' + string;\n  var match = matchHtmlRegExp.exec(str);\n\n  if (!match) {\n    return str;\n  }\n\n  var escape;\n  var html = '';\n  var index = 0;\n  var lastIndex = 0;\n\n  for (index = match.index; index < str.length; index++) {\n    switch (str.charCodeAt(index)) {\n      case 34: // \"\n        escape = '&quot;';\n        break;\n      case 38: // &\n        escape = '&amp;';\n        break;\n      case 39: // '\n        escape = '&#39;';\n        break;\n      case 60: // <\n        escape = '&lt;';\n        break;\n      case 62: // >\n        escape = '&gt;';\n        break;\n      default:\n        continue;\n    }\n\n    if (lastIndex !== index) {\n      html += str.substring(lastIndex, index);\n    }\n\n    lastIndex = index + 1;\n    html += escape;\n  }\n\n  return lastIndex !== index\n    ? html + str.substring(lastIndex, index)\n    : html;\n}\n","import { Observable } from '../Observable';\nimport { from } from './from';\nimport { EMPTY } from './empty';\nexport function defer(observableFactory) {\n    return new Observable(function (subscriber) {\n        var input;\n        try {\n            input = observableFactory();\n        }\n        catch (err) {\n            subscriber.error(err);\n            return undefined;\n        }\n        var source = input ? from(input) : EMPTY;\n        return source.subscribe(subscriber);\n    });\n}\n//# sourceMappingURL=defer.js.map","import { __extends } from \"tslib\";\nimport { AsyncAction } from './AsyncAction';\nvar QueueAction = (function (_super) {\n    __extends(QueueAction, _super);\n    function QueueAction(scheduler, work) {\n        var _this = _super.call(this, scheduler, work) || this;\n        _this.scheduler = scheduler;\n        _this.work = work;\n        return _this;\n    }\n    QueueAction.prototype.schedule = function (state, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (delay > 0) {\n            return _super.prototype.schedule.call(this, state, delay);\n        }\n        this.delay = delay;\n        this.state = state;\n        this.scheduler.flush(this);\n        return this;\n    };\n    QueueAction.prototype.execute = function (state, delay) {\n        return (delay > 0 || this.closed) ?\n            _super.prototype.execute.call(this, state, delay) :\n            this._execute(state, delay);\n    };\n    QueueAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);\n        }\n        return scheduler.flush(this);\n    };\n    return QueueAction;\n}(AsyncAction));\nexport { QueueAction };\n//# sourceMappingURL=QueueAction.js.map","import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\nexport var queue = new QueueScheduler(QueueAction);\n//# sourceMappingURL=queue.js.map","import { __extends } from \"tslib\";\nimport { AsyncScheduler } from './AsyncScheduler';\nvar QueueScheduler = (function (_super) {\n    __extends(QueueScheduler, _super);\n    function QueueScheduler() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    return QueueScheduler;\n}(AsyncScheduler));\nexport { QueueScheduler };\n//# sourceMappingURL=QueueScheduler.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { queue } from './scheduler/queue';\nimport { Subscription } from './Subscription';\nimport { ObserveOnSubscriber } from './operators/observeOn';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nvar ReplaySubject = (function (_super) {\n    __extends(ReplaySubject, _super);\n    function ReplaySubject(bufferSize, windowTime, scheduler) {\n        if (bufferSize === void 0) { bufferSize = Number.POSITIVE_INFINITY; }\n        if (windowTime === void 0) { windowTime = Number.POSITIVE_INFINITY; }\n        var _this = _super.call(this) || this;\n        _this.scheduler = scheduler;\n        _this._events = [];\n        _this._infiniteTimeWindow = false;\n        _this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n        _this._windowTime = windowTime < 1 ? 1 : windowTime;\n        if (windowTime === Number.POSITIVE_INFINITY) {\n            _this._infiniteTimeWindow = true;\n            _this.next = _this.nextInfiniteTimeWindow;\n        }\n        else {\n            _this.next = _this.nextTimeWindow;\n        }\n        return _this;\n    }\n    ReplaySubject.prototype.nextInfiniteTimeWindow = function (value) {\n        var _events = this._events;\n        _events.push(value);\n        if (_events.length > this._bufferSize) {\n            _events.shift();\n        }\n        _super.prototype.next.call(this, value);\n    };\n    ReplaySubject.prototype.nextTimeWindow = function (value) {\n        this._events.push(new ReplayEvent(this._getNow(), value));\n        this._trimBufferThenGetEvents();\n        _super.prototype.next.call(this, value);\n    };\n    ReplaySubject.prototype._subscribe = function (subscriber) {\n        var _infiniteTimeWindow = this._infiniteTimeWindow;\n        var _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n        var scheduler = this.scheduler;\n        var len = _events.length;\n        var subscription;\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.isStopped || this.hasError) {\n            subscription = Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            subscription = new SubjectSubscription(this, subscriber);\n        }\n        if (scheduler) {\n            subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));\n        }\n        if (_infiniteTimeWindow) {\n            for (var i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i]);\n            }\n        }\n        else {\n            for (var i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i].value);\n            }\n        }\n        if (this.hasError) {\n            subscriber.error(this.thrownError);\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n        }\n        return subscription;\n    };\n    ReplaySubject.prototype._getNow = function () {\n        return (this.scheduler || queue).now();\n    };\n    ReplaySubject.prototype._trimBufferThenGetEvents = function () {\n        var now = this._getNow();\n        var _bufferSize = this._bufferSize;\n        var _windowTime = this._windowTime;\n        var _events = this._events;\n        var eventsCount = _events.length;\n        var spliceCount = 0;\n        while (spliceCount < eventsCount) {\n            if ((now - _events[spliceCount].time) < _windowTime) {\n                break;\n            }\n            spliceCount++;\n        }\n        if (eventsCount > _bufferSize) {\n            spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n        }\n        if (spliceCount > 0) {\n            _events.splice(0, spliceCount);\n        }\n        return _events;\n    };\n    return ReplaySubject;\n}(Subject));\nexport { ReplaySubject };\nvar ReplayEvent = (function () {\n    function ReplayEvent(time, value) {\n        this.time = time;\n        this.value = value;\n    }\n    return ReplayEvent;\n}());\n//# sourceMappingURL=ReplaySubject.js.map","export default function _has(prop, obj) {\n  return Object.prototype.hasOwnProperty.call(obj, prop);\n}","import _has from \"./_has.js\";\nvar toString = Object.prototype.toString;\n\nvar _isArguments =\n/*#__PURE__*/\nfunction () {\n  return toString.call(arguments) === '[object Arguments]' ? function _isArguments(x) {\n    return toString.call(x) === '[object Arguments]';\n  } : function _isArguments(x) {\n    return _has('callee', x);\n  };\n}();\n\nexport default _isArguments;","import _curry1 from \"./internal/_curry1.js\";\nimport _has from \"./internal/_has.js\";\nimport _isArguments from \"./internal/_isArguments.js\"; // cover IE < 9 keys issues\n\nvar hasEnumBug = !\n/*#__PURE__*/\n{\n  toString: null\n}.propertyIsEnumerable('toString');\nvar nonEnumerableProps = ['constructor', 'valueOf', 'isPrototypeOf', 'toString', 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString']; // Safari bug\n\nvar hasArgsEnumBug =\n/*#__PURE__*/\nfunction () {\n  'use strict';\n\n  return arguments.propertyIsEnumerable('length');\n}();\n\nvar contains = function contains(list, item) {\n  var idx = 0;\n\n  while (idx < list.length) {\n    if (list[idx] === item) {\n      return true;\n    }\n\n    idx += 1;\n  }\n\n  return false;\n};\n/**\n * Returns a list containing the names of all the enumerable own properties of\n * the supplied object.\n * Note that the order of the output array is not guaranteed to be consistent\n * across different JS platforms.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @sig {k: v} -> [k]\n * @param {Object} obj The object to extract properties from\n * @return {Array} An array of the object's own properties.\n * @see R.keysIn, R.values\n * @example\n *\n *      R.keys({a: 1, b: 2, c: 3}); //=> ['a', 'b', 'c']\n */\n\n\nvar keys = typeof Object.keys === 'function' && !hasArgsEnumBug ?\n/*#__PURE__*/\n_curry1(function keys(obj) {\n  return Object(obj) !== obj ? [] : Object.keys(obj);\n}) :\n/*#__PURE__*/\n_curry1(function keys(obj) {\n  if (Object(obj) !== obj) {\n    return [];\n  }\n\n  var prop, nIdx;\n  var ks = [];\n\n  var checkArgsLength = hasArgsEnumBug && _isArguments(obj);\n\n  for (prop in obj) {\n    if (_has(prop, obj) && (!checkArgsLength || prop !== 'length')) {\n      ks[ks.length] = prop;\n    }\n  }\n\n  if (hasEnumBug) {\n    nIdx = nonEnumerableProps.length - 1;\n\n    while (nIdx >= 0) {\n      prop = nonEnumerableProps[nIdx];\n\n      if (_has(prop, obj) && !contains(ks, prop)) {\n        ks[ks.length] = prop;\n      }\n\n      nIdx -= 1;\n    }\n  }\n\n  return ks;\n});\nexport default keys;","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { noop } from '../util/noop';\nimport { isFunction } from '../util/isFunction';\nexport function tap(nextOrObserver, error, complete) {\n    return function tapOperatorFunction(source) {\n        return source.lift(new DoOperator(nextOrObserver, error, complete));\n    };\n}\nvar DoOperator = (function () {\n    function DoOperator(nextOrObserver, error, complete) {\n        this.nextOrObserver = nextOrObserver;\n        this.error = error;\n        this.complete = complete;\n    }\n    DoOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));\n    };\n    return DoOperator;\n}());\nvar TapSubscriber = (function (_super) {\n    __extends(TapSubscriber, _super);\n    function TapSubscriber(destination, observerOrNext, error, complete) {\n        var _this = _super.call(this, destination) || this;\n        _this._tapNext = noop;\n        _this._tapError = noop;\n        _this._tapComplete = noop;\n        _this._tapError = error || noop;\n        _this._tapComplete = complete || noop;\n        if (isFunction(observerOrNext)) {\n            _this._context = _this;\n            _this._tapNext = observerOrNext;\n        }\n        else if (observerOrNext) {\n            _this._context = observerOrNext;\n            _this._tapNext = observerOrNext.next || noop;\n            _this._tapError = observerOrNext.error || noop;\n            _this._tapComplete = observerOrNext.complete || noop;\n        }\n        return _this;\n    }\n    TapSubscriber.prototype._next = function (value) {\n        try {\n            this._tapNext.call(this._context, value);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(value);\n    };\n    TapSubscriber.prototype._error = function (err) {\n        try {\n            this._tapError.call(this._context, err);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.error(err);\n    };\n    TapSubscriber.prototype._complete = function () {\n        try {\n            this._tapComplete.call(this._context);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        return this.destination.complete();\n    };\n    return TapSubscriber;\n}(Subscriber));\n//# sourceMappingURL=tap.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function scan(accumulator, seed) {\n    var hasSeed = false;\n    if (arguments.length >= 2) {\n        hasSeed = true;\n    }\n    return function scanOperatorFunction(source) {\n        return source.lift(new ScanOperator(accumulator, seed, hasSeed));\n    };\n}\nvar ScanOperator = (function () {\n    function ScanOperator(accumulator, seed, hasSeed) {\n        if (hasSeed === void 0) { hasSeed = false; }\n        this.accumulator = accumulator;\n        this.seed = seed;\n        this.hasSeed = hasSeed;\n    }\n    ScanOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ScanSubscriber(subscriber, this.accumulator, this.seed, this.hasSeed));\n    };\n    return ScanOperator;\n}());\nvar ScanSubscriber = (function (_super) {\n    __extends(ScanSubscriber, _super);\n    function ScanSubscriber(destination, accumulator, _state, _hasState) {\n        var _this = _super.call(this, destination) || this;\n        _this.accumulator = accumulator;\n        _this._state = _state;\n        _this._hasState = _hasState;\n        _this.index = 0;\n        return _this;\n    }\n    ScanSubscriber.prototype._next = function (value) {\n        var destination = this.destination;\n        if (!this._hasState) {\n            this._state = value;\n            this._hasState = true;\n            destination.next(value);\n        }\n        else {\n            var index = this.index++;\n            var result = void 0;\n            try {\n                result = this.accumulator(this._state, value, index);\n            }\n            catch (err) {\n                destination.error(err);\n                return;\n            }\n            this._state = result;\n            destination.next(result);\n        }\n    };\n    return ScanSubscriber;\n}(Subscriber));\n//# sourceMappingURL=scan.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nexport function finalize(callback) {\n    return function (source) { return source.lift(new FinallyOperator(callback)); };\n}\nvar FinallyOperator = (function () {\n    function FinallyOperator(callback) {\n        this.callback = callback;\n    }\n    FinallyOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new FinallySubscriber(subscriber, this.callback));\n    };\n    return FinallyOperator;\n}());\nvar FinallySubscriber = (function (_super) {\n    __extends(FinallySubscriber, _super);\n    function FinallySubscriber(destination, callback) {\n        var _this = _super.call(this, destination) || this;\n        _this.add(new Subscription(callback));\n        return _this;\n    }\n    return FinallySubscriber;\n}(Subscriber));\n//# sourceMappingURL=finalize.js.map","import { __extends } from \"tslib\";\nimport { AsyncAction } from './AsyncAction';\nvar AnimationFrameAction = (function (_super) {\n    __extends(AnimationFrameAction, _super);\n    function AnimationFrameAction(scheduler, work) {\n        var _this = _super.call(this, scheduler, work) || this;\n        _this.scheduler = scheduler;\n        _this.work = work;\n        return _this;\n    }\n    AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if (delay !== null && delay > 0) {\n            return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);\n        }\n        scheduler.actions.push(this);\n        return scheduler.scheduled || (scheduler.scheduled = requestAnimationFrame(function () { return scheduler.flush(undefined); }));\n    };\n    AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n        if (delay === void 0) { delay = 0; }\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay);\n        }\n        if (scheduler.actions.length === 0) {\n            cancelAnimationFrame(id);\n            scheduler.scheduled = undefined;\n        }\n        return undefined;\n    };\n    return AnimationFrameAction;\n}(AsyncAction));\nexport { AnimationFrameAction };\n//# sourceMappingURL=AnimationFrameAction.js.map","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport var animationFrame = new AnimationFrameScheduler(AnimationFrameAction);\n//# sourceMappingURL=animationFrame.js.map","import { __extends } from \"tslib\";\nimport { AsyncScheduler } from './AsyncScheduler';\nvar AnimationFrameScheduler = (function (_super) {\n    __extends(AnimationFrameScheduler, _super);\n    function AnimationFrameScheduler() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    AnimationFrameScheduler.prototype.flush = function (action) {\n        this.active = true;\n        this.scheduled = undefined;\n        var actions = this.actions;\n        var error;\n        var index = -1;\n        var count = actions.length;\n        action = action || actions.shift();\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (++index < count && (action = actions.shift()));\n        this.active = false;\n        if (error) {\n            while (++index < count && (action = actions.shift())) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    };\n    return AnimationFrameScheduler;\n}(AsyncScheduler));\nexport { AnimationFrameScheduler };\n//# sourceMappingURL=AnimationFrameScheduler.js.map","import { ReplaySubject } from '../ReplaySubject';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n    var config;\n    if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n        config = configOrBufferSize;\n    }\n    else {\n        config = {\n            bufferSize: configOrBufferSize,\n            windowTime: windowTime,\n            refCount: false,\n            scheduler: scheduler\n        };\n    }\n    return function (source) { return source.lift(shareReplayOperator(config)); };\n}\nfunction shareReplayOperator(_a) {\n    var _b = _a.bufferSize, bufferSize = _b === void 0 ? Number.POSITIVE_INFINITY : _b, _c = _a.windowTime, windowTime = _c === void 0 ? Number.POSITIVE_INFINITY : _c, useRefCount = _a.refCount, scheduler = _a.scheduler;\n    var subject;\n    var refCount = 0;\n    var subscription;\n    var hasError = false;\n    var isComplete = false;\n    return function shareReplayOperation(source) {\n        refCount++;\n        if (!subject || hasError) {\n            hasError = false;\n            subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n            subscription = source.subscribe({\n                next: function (value) { subject.next(value); },\n                error: function (err) {\n                    hasError = true;\n                    subject.error(err);\n                },\n                complete: function () {\n                    isComplete = true;\n                    subscription = undefined;\n                    subject.complete();\n                },\n            });\n        }\n        var innerSub = subject.subscribe(this);\n        this.add(function () {\n            refCount--;\n            innerSub.unsubscribe();\n            if (subscription && !isComplete && useRefCount && refCount === 0) {\n                subscription.unsubscribe();\n                subscription = undefined;\n                subject = undefined;\n            }\n        });\n    };\n}\n//# sourceMappingURL=shareReplay.js.map","import { distinctUntilChanged } from './distinctUntilChanged';\nexport function distinctUntilKeyChanged(key, compare) {\n    return distinctUntilChanged(function (x, y) { return compare ? compare(x[key], y[key]) : x[key] === y[key]; });\n}\n//# sourceMappingURL=distinctUntilKeyChanged.js.map","import { __extends, __spreadArrays } from \"tslib\";\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function withLatestFrom() {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    return function (source) {\n        var project;\n        if (typeof args[args.length - 1] === 'function') {\n            project = args.pop();\n        }\n        var observables = args;\n        return source.lift(new WithLatestFromOperator(observables, project));\n    };\n}\nvar WithLatestFromOperator = (function () {\n    function WithLatestFromOperator(observables, project) {\n        this.observables = observables;\n        this.project = project;\n    }\n    WithLatestFromOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));\n    };\n    return WithLatestFromOperator;\n}());\nvar WithLatestFromSubscriber = (function (_super) {\n    __extends(WithLatestFromSubscriber, _super);\n    function WithLatestFromSubscriber(destination, observables, project) {\n        var _this = _super.call(this, destination) || this;\n        _this.observables = observables;\n        _this.project = project;\n        _this.toRespond = [];\n        var len = observables.length;\n        _this.values = new Array(len);\n        for (var i = 0; i < len; i++) {\n            _this.toRespond.push(i);\n        }\n        for (var i = 0; i < len; i++) {\n            var observable = observables[i];\n            _this.add(subscribeToResult(_this, observable, observable, i));\n        }\n        return _this;\n    }\n    WithLatestFromSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.values[outerIndex] = innerValue;\n        var toRespond = this.toRespond;\n        if (toRespond.length > 0) {\n            var found = toRespond.indexOf(outerIndex);\n            if (found !== -1) {\n                toRespond.splice(found, 1);\n            }\n        }\n    };\n    WithLatestFromSubscriber.prototype.notifyComplete = function () {\n    };\n    WithLatestFromSubscriber.prototype._next = function (value) {\n        if (this.toRespond.length === 0) {\n            var args = __spreadArrays([value], this.values);\n            if (this.project) {\n                this._tryProject(args);\n            }\n            else {\n                this.destination.next(args);\n            }\n        }\n    };\n    WithLatestFromSubscriber.prototype._tryProject = function (args) {\n        var result;\n        try {\n            result = this.project.apply(this, args);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    };\n    return WithLatestFromSubscriber;\n}(OuterSubscriber));\n//# sourceMappingURL=withLatestFrom.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function bufferCount(bufferSize, startBufferEvery) {\n    if (startBufferEvery === void 0) { startBufferEvery = null; }\n    return function bufferCountOperatorFunction(source) {\n        return source.lift(new BufferCountOperator(bufferSize, startBufferEvery));\n    };\n}\nvar BufferCountOperator = (function () {\n    function BufferCountOperator(bufferSize, startBufferEvery) {\n        this.bufferSize = bufferSize;\n        this.startBufferEvery = startBufferEvery;\n        if (!startBufferEvery || bufferSize === startBufferEvery) {\n            this.subscriberClass = BufferCountSubscriber;\n        }\n        else {\n            this.subscriberClass = BufferSkipCountSubscriber;\n        }\n    }\n    BufferCountOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new this.subscriberClass(subscriber, this.bufferSize, this.startBufferEvery));\n    };\n    return BufferCountOperator;\n}());\nvar BufferCountSubscriber = (function (_super) {\n    __extends(BufferCountSubscriber, _super);\n    function BufferCountSubscriber(destination, bufferSize) {\n        var _this = _super.call(this, destination) || this;\n        _this.bufferSize = bufferSize;\n        _this.buffer = [];\n        return _this;\n    }\n    BufferCountSubscriber.prototype._next = function (value) {\n        var buffer = this.buffer;\n        buffer.push(value);\n        if (buffer.length == this.bufferSize) {\n            this.destination.next(buffer);\n            this.buffer = [];\n        }\n    };\n    BufferCountSubscriber.prototype._complete = function () {\n        var buffer = this.buffer;\n        if (buffer.length > 0) {\n            this.destination.next(buffer);\n        }\n        _super.prototype._complete.call(this);\n    };\n    return BufferCountSubscriber;\n}(Subscriber));\nvar BufferSkipCountSubscriber = (function (_super) {\n    __extends(BufferSkipCountSubscriber, _super);\n    function BufferSkipCountSubscriber(destination, bufferSize, startBufferEvery) {\n        var _this = _super.call(this, destination) || this;\n        _this.bufferSize = bufferSize;\n        _this.startBufferEvery = startBufferEvery;\n        _this.buffers = [];\n        _this.count = 0;\n        return _this;\n    }\n    BufferSkipCountSubscriber.prototype._next = function (value) {\n        var _a = this, bufferSize = _a.bufferSize, startBufferEvery = _a.startBufferEvery, buffers = _a.buffers, count = _a.count;\n        this.count++;\n        if (count % startBufferEvery === 0) {\n            buffers.push([]);\n        }\n        for (var i = buffers.length; i--;) {\n            var buffer = buffers[i];\n            buffer.push(value);\n            if (buffer.length === bufferSize) {\n                buffers.splice(i, 1);\n                this.destination.next(buffer);\n            }\n        }\n    };\n    BufferSkipCountSubscriber.prototype._complete = function () {\n        var _a = this, buffers = _a.buffers, destination = _a.destination;\n        while (buffers.length > 0) {\n            var buffer = buffers.shift();\n            if (buffer.length > 0) {\n                destination.next(buffer);\n            }\n        }\n        _super.prototype._complete.call(this);\n    };\n    return BufferSkipCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=bufferCount.js.map","import _curry1 from \"./internal/_curry1.js\";\nimport _isString from \"./internal/_isString.js\";\n/**\n * Returns a new list or string with the elements or characters in reverse\n * order.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category List\n * @sig [a] -> [a]\n * @sig String -> String\n * @param {Array|String} list\n * @return {Array|String}\n * @example\n *\n *      R.reverse([1, 2, 3]);  //=> [3, 2, 1]\n *      R.reverse([1, 2]);     //=> [2, 1]\n *      R.reverse([1]);        //=> [1]\n *      R.reverse([]);         //=> []\n *\n *      R.reverse('abc');      //=> 'cba'\n *      R.reverse('ab');       //=> 'ba'\n *      R.reverse('a');        //=> 'a'\n *      R.reverse('');         //=> ''\n */\n\nvar reverse =\n/*#__PURE__*/\n_curry1(function reverse(list) {\n  return _isString(list) ? list.split('').reverse().join('') : Array.prototype.slice.call(list, 0).reverse();\n});\n\nexport default reverse;","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n    return mergeAll(1);\n}\n//# sourceMappingURL=concatAll.js.map","import { of } from './of';\nimport { concatAll } from '../operators/concatAll';\nexport function concat() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    return concatAll()(of.apply(void 0, observables));\n}\n//# sourceMappingURL=concat.js.map","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith() {\n    var values = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        values[_i] = arguments[_i];\n    }\n    var scheduler = values[values.length - 1];\n    if (isScheduler(scheduler)) {\n        values.pop();\n        return function (source) { return concat(values, source, scheduler); };\n    }\n    else {\n        return function (source) { return concat(values, source); };\n    }\n}\n//# sourceMappingURL=startWith.js.map","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nexport function fromEvent(target, eventName, options, resultSelector) {\n    if (isFunction(options)) {\n        resultSelector = options;\n        options = undefined;\n    }\n    if (resultSelector) {\n        return fromEvent(target, eventName, options).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));\n    }\n    return new Observable(function (subscriber) {\n        function handler(e) {\n            if (arguments.length > 1) {\n                subscriber.next(Array.prototype.slice.call(arguments));\n            }\n            else {\n                subscriber.next(e);\n            }\n        }\n        setupSubscription(target, eventName, handler, subscriber, options);\n    });\n}\nfunction setupSubscription(sourceObj, eventName, handler, subscriber, options) {\n    var unsubscribe;\n    if (isEventTarget(sourceObj)) {\n        var source_1 = sourceObj;\n        sourceObj.addEventListener(eventName, handler, options);\n        unsubscribe = function () { return source_1.removeEventListener(eventName, handler, options); };\n    }\n    else if (isJQueryStyleEventEmitter(sourceObj)) {\n        var source_2 = sourceObj;\n        sourceObj.on(eventName, handler);\n        unsubscribe = function () { return source_2.off(eventName, handler); };\n    }\n    else if (isNodeStyleEventEmitter(sourceObj)) {\n        var source_3 = sourceObj;\n        sourceObj.addListener(eventName, handler);\n        unsubscribe = function () { return source_3.removeListener(eventName, handler); };\n    }\n    else if (sourceObj && sourceObj.length) {\n        for (var i = 0, len = sourceObj.length; i < len; i++) {\n            setupSubscription(sourceObj[i], eventName, handler, subscriber, options);\n        }\n    }\n    else {\n        throw new TypeError('Invalid event target');\n    }\n    subscriber.add(unsubscribe);\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n    return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n//# sourceMappingURL=fromEvent.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function mapTo(value) {\n    return function (source) { return source.lift(new MapToOperator(value)); };\n}\nvar MapToOperator = (function () {\n    function MapToOperator(value) {\n        this.value = value;\n    }\n    MapToOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new MapToSubscriber(subscriber, this.value));\n    };\n    return MapToOperator;\n}());\nvar MapToSubscriber = (function (_super) {\n    __extends(MapToSubscriber, _super);\n    function MapToSubscriber(destination, value) {\n        var _this = _super.call(this, destination) || this;\n        _this.value = value;\n        return _this;\n    }\n    MapToSubscriber.prototype._next = function (x) {\n        this.destination.next(this.value);\n    };\n    return MapToSubscriber;\n}(Subscriber));\n//# sourceMappingURL=mapTo.js.map","import { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nexport function merge() {\n    var observables = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        observables[_i] = arguments[_i];\n    }\n    var concurrent = Number.POSITIVE_INFINITY;\n    var scheduler = undefined;\n    var last = observables[observables.length - 1];\n    if (isScheduler(last)) {\n        scheduler = observables.pop();\n        if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {\n            concurrent = observables.pop();\n        }\n    }\n    else if (typeof last === 'number') {\n        concurrent = observables.pop();\n    }\n    if (!scheduler && observables.length === 1 && observables[0] instanceof Observable) {\n        return observables[0];\n    }\n    return mergeAll(concurrent)(fromArray(observables, scheduler));\n}\n//# sourceMappingURL=merge.js.map","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nexport function fromEventPattern(addHandler, removeHandler, resultSelector) {\n    if (resultSelector) {\n        return fromEventPattern(addHandler, removeHandler).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));\n    }\n    return new Observable(function (subscriber) {\n        var handler = function () {\n            var e = [];\n            for (var _i = 0; _i < arguments.length; _i++) {\n                e[_i] = arguments[_i];\n            }\n            return subscriber.next(e.length === 1 ? e[0] : e);\n        };\n        var retValue;\n        try {\n            retValue = addHandler(handler);\n        }\n        catch (err) {\n            subscriber.error(err);\n            return undefined;\n        }\n        if (!isFunction(removeHandler)) {\n            return undefined;\n        }\n        return function () { return removeHandler(handler, retValue); };\n    });\n}\n//# sourceMappingURL=fromEventPattern.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function filter(predicate, thisArg) {\n    return function filterOperatorFunction(source) {\n        return source.lift(new FilterOperator(predicate, thisArg));\n    };\n}\nvar FilterOperator = (function () {\n    function FilterOperator(predicate, thisArg) {\n        this.predicate = predicate;\n        this.thisArg = thisArg;\n    }\n    FilterOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));\n    };\n    return FilterOperator;\n}());\nvar FilterSubscriber = (function (_super) {\n    __extends(FilterSubscriber, _super);\n    function FilterSubscriber(destination, predicate, thisArg) {\n        var _this = _super.call(this, destination) || this;\n        _this.predicate = predicate;\n        _this.thisArg = thisArg;\n        _this.count = 0;\n        return _this;\n    }\n    FilterSubscriber.prototype._next = function (value) {\n        var result;\n        try {\n            result = this.predicate.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        if (result) {\n            this.destination.next(value);\n        }\n    };\n    return FilterSubscriber;\n}(Subscriber));\n//# sourceMappingURL=filter.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nvar BehaviorSubject = (function (_super) {\n    __extends(BehaviorSubject, _super);\n    function BehaviorSubject(_value) {\n        var _this = _super.call(this) || this;\n        _this._value = _value;\n        return _this;\n    }\n    Object.defineProperty(BehaviorSubject.prototype, \"value\", {\n        get: function () {\n            return this.getValue();\n        },\n        enumerable: true,\n        configurable: true\n    });\n    BehaviorSubject.prototype._subscribe = function (subscriber) {\n        var subscription = _super.prototype._subscribe.call(this, subscriber);\n        if (subscription && !subscription.closed) {\n            subscriber.next(this._value);\n        }\n        return subscription;\n    };\n    BehaviorSubject.prototype.getValue = function () {\n        if (this.hasError) {\n            throw this.thrownError;\n        }\n        else if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return this._value;\n        }\n    };\n    BehaviorSubject.prototype.next = function (value) {\n        _super.prototype.next.call(this, this._value = value);\n    };\n    return BehaviorSubject;\n}(Subject));\nexport { BehaviorSubject };\n//# sourceMappingURL=BehaviorSubject.js.map","import { map } from './map';\nexport function pluck() {\n    var properties = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        properties[_i] = arguments[_i];\n    }\n    var length = properties.length;\n    if (length === 0) {\n        throw new Error('list of properties cannot be empty.');\n    }\n    return map(function (x) {\n        var currentProp = x;\n        for (var i = 0; i < length; i++) {\n            var p = currentProp[properties[i]];\n            if (typeof p !== 'undefined') {\n                currentProp = p;\n            }\n            else {\n                return undefined;\n            }\n        }\n        return currentProp;\n    });\n}\n//# sourceMappingURL=pluck.js.map","import { __extends } from \"tslib\";\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport var defaultThrottleConfig = {\n    leading: true,\n    trailing: false\n};\nexport function throttle(durationSelector, config) {\n    if (config === void 0) { config = defaultThrottleConfig; }\n    return function (source) { return source.lift(new ThrottleOperator(durationSelector, !!config.leading, !!config.trailing)); };\n}\nvar ThrottleOperator = (function () {\n    function ThrottleOperator(durationSelector, leading, trailing) {\n        this.durationSelector = durationSelector;\n        this.leading = leading;\n        this.trailing = trailing;\n    }\n    ThrottleOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new ThrottleSubscriber(subscriber, this.durationSelector, this.leading, this.trailing));\n    };\n    return ThrottleOperator;\n}());\nvar ThrottleSubscriber = (function (_super) {\n    __extends(ThrottleSubscriber, _super);\n    function ThrottleSubscriber(destination, durationSelector, _leading, _trailing) {\n        var _this = _super.call(this, destination) || this;\n        _this.destination = destination;\n        _this.durationSelector = durationSelector;\n        _this._leading = _leading;\n        _this._trailing = _trailing;\n        _this._sendValue = null;\n        _this._hasValue = false;\n        return _this;\n    }\n    ThrottleSubscriber.prototype._next = function (value) {\n        this._hasValue = true;\n        this._sendValue = value;\n        if (!this._throttled) {\n            if (this._leading) {\n                this.send();\n            }\n            else {\n                this.throttle(value);\n            }\n        }\n    };\n    ThrottleSubscriber.prototype.send = function () {\n        var _a = this, _hasValue = _a._hasValue, _sendValue = _a._sendValue;\n        if (_hasValue) {\n            this.destination.next(_sendValue);\n            this.throttle(_sendValue);\n        }\n        this._hasValue = false;\n        this._sendValue = null;\n    };\n    ThrottleSubscriber.prototype.throttle = function (value) {\n        var duration = this.tryDurationSelector(value);\n        if (!!duration) {\n            this.add(this._throttled = subscribeToResult(this, duration));\n        }\n    };\n    ThrottleSubscriber.prototype.tryDurationSelector = function (value) {\n        try {\n            return this.durationSelector(value);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return null;\n        }\n    };\n    ThrottleSubscriber.prototype.throttlingDone = function () {\n        var _a = this, _throttled = _a._throttled, _trailing = _a._trailing;\n        if (_throttled) {\n            _throttled.unsubscribe();\n        }\n        this._throttled = null;\n        if (_trailing) {\n            this.send();\n        }\n    };\n    ThrottleSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.throttlingDone();\n    };\n    ThrottleSubscriber.prototype.notifyComplete = function () {\n        this.throttlingDone();\n    };\n    return ThrottleSubscriber;\n}(OuterSubscriber));\n//# sourceMappingURL=throttle.js.map","import { switchMap } from './switchMap';\nexport function switchMapTo(innerObservable, resultSelector) {\n    return resultSelector ? switchMap(function () { return innerObservable; }, resultSelector) : switchMap(function () { return innerObservable; });\n}\n//# sourceMappingURL=switchMapTo.js.map","import { __extends } from \"tslib\";\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function sample(notifier) {\n    return function (source) { return source.lift(new SampleOperator(notifier)); };\n}\nvar SampleOperator = (function () {\n    function SampleOperator(notifier) {\n        this.notifier = notifier;\n    }\n    SampleOperator.prototype.call = function (subscriber, source) {\n        var sampleSubscriber = new SampleSubscriber(subscriber);\n        var subscription = source.subscribe(sampleSubscriber);\n        subscription.add(subscribeToResult(sampleSubscriber, this.notifier));\n        return subscription;\n    };\n    return SampleOperator;\n}());\nvar SampleSubscriber = (function (_super) {\n    __extends(SampleSubscriber, _super);\n    function SampleSubscriber() {\n        var _this = _super !== null && _super.apply(this, arguments) || this;\n        _this.hasValue = false;\n        return _this;\n    }\n    SampleSubscriber.prototype._next = function (value) {\n        this.value = value;\n        this.hasValue = true;\n    };\n    SampleSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.emitValue();\n    };\n    SampleSubscriber.prototype.notifyComplete = function () {\n        this.emitValue();\n    };\n    SampleSubscriber.prototype.emitValue = function () {\n        if (this.hasValue) {\n            this.hasValue = false;\n            this.destination.next(this.value);\n        }\n    };\n    return SampleSubscriber;\n}(OuterSubscriber));\n//# sourceMappingURL=sample.js.map","import { Observable } from '../Observable';\nimport { noop } from '../util/noop';\nexport var NEVER = new Observable(noop);\nexport function never() {\n    return NEVER;\n}\n//# sourceMappingURL=never.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function skip(count) {\n    return function (source) { return source.lift(new SkipOperator(count)); };\n}\nvar SkipOperator = (function () {\n    function SkipOperator(total) {\n        this.total = total;\n    }\n    SkipOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new SkipSubscriber(subscriber, this.total));\n    };\n    return SkipOperator;\n}());\nvar SkipSubscriber = (function (_super) {\n    __extends(SkipSubscriber, _super);\n    function SkipSubscriber(destination, total) {\n        var _this = _super.call(this, destination) || this;\n        _this.total = total;\n        _this.count = 0;\n        return _this;\n    }\n    SkipSubscriber.prototype._next = function (x) {\n        if (++this.count > this.total) {\n            this.destination.next(x);\n        }\n    };\n    return SkipSubscriber;\n}(Subscriber));\n//# sourceMappingURL=skip.js.map","import { __extends } from \"tslib\";\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function catchError(selector) {\n    return function catchErrorOperatorFunction(source) {\n        var operator = new CatchOperator(selector);\n        var caught = source.lift(operator);\n        return (operator.caught = caught);\n    };\n}\nvar CatchOperator = (function () {\n    function CatchOperator(selector) {\n        this.selector = selector;\n    }\n    CatchOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));\n    };\n    return CatchOperator;\n}());\nvar CatchSubscriber = (function (_super) {\n    __extends(CatchSubscriber, _super);\n    function CatchSubscriber(destination, selector, caught) {\n        var _this = _super.call(this, destination) || this;\n        _this.selector = selector;\n        _this.caught = caught;\n        return _this;\n    }\n    CatchSubscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            var result = void 0;\n            try {\n                result = this.selector(err, this.caught);\n            }\n            catch (err2) {\n                _super.prototype.error.call(this, err2);\n                return;\n            }\n            this._unsubscribeAndRecycle();\n            var innerSubscriber = new InnerSubscriber(this, undefined, undefined);\n            this.add(innerSubscriber);\n            var innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n            if (innerSubscription !== innerSubscriber) {\n                this.add(innerSubscription);\n            }\n        }\n    };\n    return CatchSubscriber;\n}(OuterSubscriber));\n//# sourceMappingURL=catchError.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { async } from '../scheduler/async';\nexport function debounceTime(dueTime, scheduler) {\n    if (scheduler === void 0) { scheduler = async; }\n    return function (source) { return source.lift(new DebounceTimeOperator(dueTime, scheduler)); };\n}\nvar DebounceTimeOperator = (function () {\n    function DebounceTimeOperator(dueTime, scheduler) {\n        this.dueTime = dueTime;\n        this.scheduler = scheduler;\n    }\n    DebounceTimeOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler));\n    };\n    return DebounceTimeOperator;\n}());\nvar DebounceTimeSubscriber = (function (_super) {\n    __extends(DebounceTimeSubscriber, _super);\n    function DebounceTimeSubscriber(destination, dueTime, scheduler) {\n        var _this = _super.call(this, destination) || this;\n        _this.dueTime = dueTime;\n        _this.scheduler = scheduler;\n        _this.debouncedSubscription = null;\n        _this.lastValue = null;\n        _this.hasValue = false;\n        return _this;\n    }\n    DebounceTimeSubscriber.prototype._next = function (value) {\n        this.clearDebounce();\n        this.lastValue = value;\n        this.hasValue = true;\n        this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this));\n    };\n    DebounceTimeSubscriber.prototype._complete = function () {\n        this.debouncedNext();\n        this.destination.complete();\n    };\n    DebounceTimeSubscriber.prototype.debouncedNext = function () {\n        this.clearDebounce();\n        if (this.hasValue) {\n            var lastValue = this.lastValue;\n            this.lastValue = null;\n            this.hasValue = false;\n            this.destination.next(lastValue);\n        }\n    };\n    DebounceTimeSubscriber.prototype.clearDebounce = function () {\n        var debouncedSubscription = this.debouncedSubscription;\n        if (debouncedSubscription !== null) {\n            this.remove(debouncedSubscription);\n            debouncedSubscription.unsubscribe();\n            this.debouncedSubscription = null;\n        }\n    };\n    return DebounceTimeSubscriber;\n}(Subscriber));\nfunction dispatchNext(subscriber) {\n    subscriber.debouncedNext();\n}\n//# sourceMappingURL=debounceTime.js.map","import { defer } from './defer';\nimport { EMPTY } from './empty';\nexport function iif(condition, trueResult, falseResult) {\n    if (trueResult === void 0) { trueResult = EMPTY; }\n    if (falseResult === void 0) { falseResult = EMPTY; }\n    return defer(function () { return condition() ? trueResult : falseResult; });\n}\n//# sourceMappingURL=iif.js.map","import _curry2 from \"./internal/_curry2.js\";\n/**\n * Sorts the list according to the supplied function.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Relation\n * @sig Ord b => (a -> b) -> [a] -> [a]\n * @param {Function} fn\n * @param {Array} list The list to sort.\n * @return {Array} A new list sorted by the keys generated by `fn`.\n * @example\n *\n *      const sortByFirstItem = R.sortBy(R.prop(0));\n *      const pairs = [[-1, 1], [-2, 2], [-3, 3]];\n *      sortByFirstItem(pairs); //=> [[-3, 3], [-2, 2], [-1, 1]]\n *\n *      const sortByNameCaseInsensitive = R.sortBy(R.compose(R.toLower, R.prop('name')));\n *      const alice = {\n *        name: 'ALICE',\n *        age: 101\n *      };\n *      const bob = {\n *        name: 'Bob',\n *        age: -10\n *      };\n *      const clara = {\n *        name: 'clara',\n *        age: 314.159\n *      };\n *      const people = [clara, bob, alice];\n *      sortByNameCaseInsensitive(people); //=> [alice, bob, clara]\n */\n\nvar sortBy =\n/*#__PURE__*/\n_curry2(function sortBy(fn, list) {\n  return Array.prototype.slice.call(list, 0).sort(function (a, b) {\n    var aa = fn(a);\n    var bb = fn(b);\n    return aa < bb ? -1 : aa > bb ? 1 : 0;\n  });\n});\n\nexport default sortBy;","import _curry1 from \"./internal/_curry1.js\";\nimport keys from \"./keys.js\";\n/**\n * Returns a list of all the enumerable own properties of the supplied object.\n * Note that the order of the output array is not guaranteed across different\n * JS platforms.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @sig {k: v} -> [v]\n * @param {Object} obj The object to extract values from\n * @return {Array} An array of the values of the object's own properties.\n * @see R.valuesIn, R.keys\n * @example\n *\n *      R.values({a: 1, b: 2, c: 3}); //=> [1, 2, 3]\n */\n\nvar values =\n/*#__PURE__*/\n_curry1(function values(obj) {\n  var props = keys(obj);\n  var len = props.length;\n  var vals = [];\n  var idx = 0;\n\n  while (idx < len) {\n    vals[idx] = obj[props[idx]];\n    idx += 1;\n  }\n\n  return vals;\n});\n\nexport default values;","/**\n * Determine if the passed argument is an integer.\n *\n * @private\n * @param {*} n\n * @category Type\n * @return {Boolean}\n */\nexport default Number.isInteger || function _isInteger(n) {\n  return n << 0 === n;\n};","import _curry2 from \"./internal/_curry2.js\";\nimport _isString from \"./internal/_isString.js\";\n/**\n * Returns the nth element of the given list or string. If n is negative the\n * element at index length + n is returned.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category List\n * @sig Number -> [a] -> a | Undefined\n * @sig Number -> String -> String\n * @param {Number} offset\n * @param {*} list\n * @return {*}\n * @example\n *\n *      const list = ['foo', 'bar', 'baz', 'quux'];\n *      R.nth(1, list); //=> 'bar'\n *      R.nth(-1, list); //=> 'quux'\n *      R.nth(-99, list); //=> undefined\n *\n *      R.nth(2, 'abc'); //=> 'c'\n *      R.nth(3, 'abc'); //=> ''\n * @symb R.nth(-1, [a, b, c]) = c\n * @symb R.nth(0, [a, b, c]) = a\n * @symb R.nth(1, [a, b, c]) = b\n */\n\nvar nth =\n/*#__PURE__*/\n_curry2(function nth(offset, list) {\n  var idx = offset < 0 ? list.length + offset : offset;\n  return _isString(list) ? list.charAt(idx) : list[idx];\n});\n\nexport default nth;","import _curry2 from \"./internal/_curry2.js\";\nimport _isInteger from \"./internal/_isInteger.js\";\nimport nth from \"./nth.js\";\n/**\n * Retrieves the values at given paths of an object.\n *\n * @func\n * @memberOf R\n * @since v0.27.0\n * @category Object\n * @typedefn Idx = [String | Int]\n * @sig [Idx] -> {a} -> [a | Undefined]\n * @param {Array} pathsArray The array of paths to be fetched.\n * @param {Object} obj The object to retrieve the nested properties from.\n * @return {Array} A list consisting of values at paths specified by \"pathsArray\".\n * @see R.path\n * @example\n *\n *      R.paths([['a', 'b'], ['p', 0, 'q']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, 3]\n *      R.paths([['a', 'b'], ['p', 'r']], {a: {b: 2}, p: [{q: 3}]}); //=> [2, undefined]\n */\n\nvar paths =\n/*#__PURE__*/\n_curry2(function paths(pathsArray, obj) {\n  return pathsArray.map(function (paths) {\n    var val = obj;\n    var idx = 0;\n    var p;\n\n    while (idx < paths.length) {\n      if (val == null) {\n        return;\n      }\n\n      p = paths[idx];\n      val = _isInteger(p) ? nth(p, val) : val[p];\n      idx += 1;\n    }\n\n    return val;\n  });\n});\n\nexport default paths;","import _curry2 from \"./internal/_curry2.js\";\nimport paths from \"./paths.js\";\n/**\n * Retrieve the value at a given path.\n *\n * @func\n * @memberOf R\n * @since v0.2.0\n * @category Object\n * @typedefn Idx = String | Int\n * @sig [Idx] -> {a} -> a | Undefined\n * @param {Array} path The path to use.\n * @param {Object} obj The object to retrieve the nested property from.\n * @return {*} The data at `path`.\n * @see R.prop, R.nth\n * @example\n *\n *      R.path(['a', 'b'], {a: {b: 2}}); //=> 2\n *      R.path(['a', 'b'], {c: {b: 2}}); //=> undefined\n *      R.path(['a', 'b', 0], {a: {b: [1, 2, 3]}}); //=> 1\n *      R.path(['a', 'b', -2], {a: {b: [1, 2, 3]}}); //=> 2\n */\n\nvar path =\n/*#__PURE__*/\n_curry2(function path(pathAr, obj) {\n  return paths([pathAr], obj)[0];\n});\n\nexport default path;","import _curry2 from \"./internal/_curry2.js\";\nimport path from \"./path.js\";\n/**\n * Returns a function that when supplied an object returns the indicated\n * property of that object, if it exists.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Object\n * @typedefn Idx = String | Int\n * @sig Idx -> {s: a} -> a | Undefined\n * @param {String|Number} p The property name or array index\n * @param {Object} obj The object to query\n * @return {*} The value at `obj.p`.\n * @see R.path, R.nth\n * @example\n *\n *      R.prop('x', {x: 100}); //=> 100\n *      R.prop('x', {}); //=> undefined\n *      R.prop(0, [100]); //=> 100\n *      R.compose(R.inc, R.prop('x'))({ x: 3 }) //=> 4\n */\n\nvar prop =\n/*#__PURE__*/\n_curry2(function prop(p, obj) {\n  return path([p], obj);\n});\n\nexport default prop;","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nexport function refCount() {\n    return function refCountOperatorFunction(source) {\n        return source.lift(new RefCountOperator(source));\n    };\n}\nvar RefCountOperator = (function () {\n    function RefCountOperator(connectable) {\n        this.connectable = connectable;\n    }\n    RefCountOperator.prototype.call = function (subscriber, source) {\n        var connectable = this.connectable;\n        connectable._refCount++;\n        var refCounter = new RefCountSubscriber(subscriber, connectable);\n        var subscription = source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    };\n    return RefCountOperator;\n}());\nvar RefCountSubscriber = (function (_super) {\n    __extends(RefCountSubscriber, _super);\n    function RefCountSubscriber(destination, connectable) {\n        var _this = _super.call(this, destination) || this;\n        _this.connectable = connectable;\n        _this.connection = null;\n        return _this;\n    }\n    RefCountSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        var refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        var connection = this.connection;\n        var sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    };\n    return RefCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=refCount.js.map","import { __extends } from \"tslib\";\nimport { SubjectSubscriber } from '../Subject';\nimport { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nvar ConnectableObservable = (function (_super) {\n    __extends(ConnectableObservable, _super);\n    function ConnectableObservable(source, subjectFactory) {\n        var _this = _super.call(this) || this;\n        _this.source = source;\n        _this.subjectFactory = subjectFactory;\n        _this._refCount = 0;\n        _this._isComplete = false;\n        return _this;\n    }\n    ConnectableObservable.prototype._subscribe = function (subscriber) {\n        return this.getSubject().subscribe(subscriber);\n    };\n    ConnectableObservable.prototype.getSubject = function () {\n        var subject = this._subject;\n        if (!subject || subject.isStopped) {\n            this._subject = this.subjectFactory();\n        }\n        return this._subject;\n    };\n    ConnectableObservable.prototype.connect = function () {\n        var connection = this._connection;\n        if (!connection) {\n            this._isComplete = false;\n            connection = this._connection = new Subscription();\n            connection.add(this.source\n                .subscribe(new ConnectableSubscriber(this.getSubject(), this)));\n            if (connection.closed) {\n                this._connection = null;\n                connection = Subscription.EMPTY;\n            }\n        }\n        return connection;\n    };\n    ConnectableObservable.prototype.refCount = function () {\n        return higherOrderRefCount()(this);\n    };\n    return ConnectableObservable;\n}(Observable));\nexport { ConnectableObservable };\nexport var connectableObservableDescriptor = (function () {\n    var connectableProto = ConnectableObservable.prototype;\n    return {\n        operator: { value: null },\n        _refCount: { value: 0, writable: true },\n        _subject: { value: null, writable: true },\n        _connection: { value: null, writable: true },\n        _subscribe: { value: connectableProto._subscribe },\n        _isComplete: { value: connectableProto._isComplete, writable: true },\n        getSubject: { value: connectableProto.getSubject },\n        connect: { value: connectableProto.connect },\n        refCount: { value: connectableProto.refCount }\n    };\n})();\nvar ConnectableSubscriber = (function (_super) {\n    __extends(ConnectableSubscriber, _super);\n    function ConnectableSubscriber(destination, connectable) {\n        var _this = _super.call(this, destination) || this;\n        _this.connectable = connectable;\n        return _this;\n    }\n    ConnectableSubscriber.prototype._error = function (err) {\n        this._unsubscribe();\n        _super.prototype._error.call(this, err);\n    };\n    ConnectableSubscriber.prototype._complete = function () {\n        this.connectable._isComplete = true;\n        this._unsubscribe();\n        _super.prototype._complete.call(this);\n    };\n    ConnectableSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (connectable) {\n            this.connectable = null;\n            var connection = connectable._connection;\n            connectable._refCount = 0;\n            connectable._subject = null;\n            connectable._connection = null;\n            if (connection) {\n                connection.unsubscribe();\n            }\n        }\n    };\n    return ConnectableSubscriber;\n}(SubjectSubscriber));\nvar RefCountOperator = (function () {\n    function RefCountOperator(connectable) {\n        this.connectable = connectable;\n    }\n    RefCountOperator.prototype.call = function (subscriber, source) {\n        var connectable = this.connectable;\n        connectable._refCount++;\n        var refCounter = new RefCountSubscriber(subscriber, connectable);\n        var subscription = source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    };\n    return RefCountOperator;\n}());\nvar RefCountSubscriber = (function (_super) {\n    __extends(RefCountSubscriber, _super);\n    function RefCountSubscriber(destination, connectable) {\n        var _this = _super.call(this, destination) || this;\n        _this.connectable = connectable;\n        return _this;\n    }\n    RefCountSubscriber.prototype._unsubscribe = function () {\n        var connectable = this.connectable;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        var refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        var connection = this.connection;\n        var sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    };\n    return RefCountSubscriber;\n}(Subscriber));\n//# sourceMappingURL=ConnectableObservable.js.map","import { connectableObservableDescriptor } from '../observable/ConnectableObservable';\nexport function multicast(subjectOrSubjectFactory, selector) {\n    return function multicastOperatorFunction(source) {\n        var subjectFactory;\n        if (typeof subjectOrSubjectFactory === 'function') {\n            subjectFactory = subjectOrSubjectFactory;\n        }\n        else {\n            subjectFactory = function subjectFactory() {\n                return subjectOrSubjectFactory;\n            };\n        }\n        if (typeof selector === 'function') {\n            return source.lift(new MulticastOperator(subjectFactory, selector));\n        }\n        var connectable = Object.create(source, connectableObservableDescriptor);\n        connectable.source = source;\n        connectable.subjectFactory = subjectFactory;\n        return connectable;\n    };\n}\nvar MulticastOperator = (function () {\n    function MulticastOperator(subjectFactory, selector) {\n        this.subjectFactory = subjectFactory;\n        this.selector = selector;\n    }\n    MulticastOperator.prototype.call = function (subscriber, source) {\n        var selector = this.selector;\n        var subject = this.subjectFactory();\n        var subscription = selector(subject).subscribe(subscriber);\n        subscription.add(source.subscribe(subject));\n        return subscription;\n    };\n    return MulticastOperator;\n}());\nexport { MulticastOperator };\n//# sourceMappingURL=multicast.js.map","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n    return new Subject();\n}\nexport function share() {\n    return function (source) { return refCount()(multicast(shareSubjectFactory)(source)); };\n}\n//# sourceMappingURL=share.js.map","import { __extends } from \"tslib\";\nimport { async } from '../scheduler/async';\nimport { isDate } from '../util/isDate';\nimport { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function delay(delay, scheduler) {\n    if (scheduler === void 0) { scheduler = async; }\n    var absoluteDelay = isDate(delay);\n    var delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);\n    return function (source) { return source.lift(new DelayOperator(delayFor, scheduler)); };\n}\nvar DelayOperator = (function () {\n    function DelayOperator(delay, scheduler) {\n        this.delay = delay;\n        this.scheduler = scheduler;\n    }\n    DelayOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new DelaySubscriber(subscriber, this.delay, this.scheduler));\n    };\n    return DelayOperator;\n}());\nvar DelaySubscriber = (function (_super) {\n    __extends(DelaySubscriber, _super);\n    function DelaySubscriber(destination, delay, scheduler) {\n        var _this = _super.call(this, destination) || this;\n        _this.delay = delay;\n        _this.scheduler = scheduler;\n        _this.queue = [];\n        _this.active = false;\n        _this.errored = false;\n        return _this;\n    }\n    DelaySubscriber.dispatch = function (state) {\n        var source = state.source;\n        var queue = source.queue;\n        var scheduler = state.scheduler;\n        var destination = state.destination;\n        while (queue.length > 0 && (queue[0].time - scheduler.now()) <= 0) {\n            queue.shift().notification.observe(destination);\n        }\n        if (queue.length > 0) {\n            var delay_1 = Math.max(0, queue[0].time - scheduler.now());\n            this.schedule(state, delay_1);\n        }\n        else if (source.isStopped) {\n            source.destination.complete();\n            source.active = false;\n        }\n        else {\n            this.unsubscribe();\n            source.active = false;\n        }\n    };\n    DelaySubscriber.prototype._schedule = function (scheduler) {\n        this.active = true;\n        var destination = this.destination;\n        destination.add(scheduler.schedule(DelaySubscriber.dispatch, this.delay, {\n            source: this, destination: this.destination, scheduler: scheduler\n        }));\n    };\n    DelaySubscriber.prototype.scheduleNotification = function (notification) {\n        if (this.errored === true) {\n            return;\n        }\n        var scheduler = this.scheduler;\n        var message = new DelayMessage(scheduler.now() + this.delay, notification);\n        this.queue.push(message);\n        if (this.active === false) {\n            this._schedule(scheduler);\n        }\n    };\n    DelaySubscriber.prototype._next = function (value) {\n        this.scheduleNotification(Notification.createNext(value));\n    };\n    DelaySubscriber.prototype._error = function (err) {\n        this.errored = true;\n        this.queue = [];\n        this.destination.error(err);\n        this.unsubscribe();\n    };\n    DelaySubscriber.prototype._complete = function () {\n        if (this.queue.length === 0) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    };\n    return DelaySubscriber;\n}(Subscriber));\nvar DelayMessage = (function () {\n    function DelayMessage(time, notification) {\n        this.time = time;\n        this.notification = notification;\n    }\n    return DelayMessage;\n}());\n//# sourceMappingURL=delay.js.map","export function isDate(value) {\n    return value instanceof Date && !isNaN(+value);\n}\n//# sourceMappingURL=isDate.js.map","export default function _identity(x) {\n  return x;\n}","import _curry1 from \"./internal/_curry1.js\";\nimport _identity from \"./internal/_identity.js\";\n/**\n * A function that does nothing but return the parameter supplied to it. Good\n * as a default or placeholder function.\n *\n * @func\n * @memberOf R\n * @since v0.1.0\n * @category Function\n * @sig a -> a\n * @param {*} x The value to return.\n * @return {*} The input value, `x`.\n * @example\n *\n *      R.identity(1); //=> 1\n *\n *      const obj = {};\n *      R.identity(obj) === obj; //=> true\n * @symb R.identity(a) = a\n */\n\nvar identity =\n/*#__PURE__*/\n_curry1(_identity);\n\nexport default identity;","import { __extends } from \"tslib\";\nimport { root } from '../../util/root';\nimport { Observable } from '../../Observable';\nimport { Subscriber } from '../../Subscriber';\nimport { map } from '../../operators/map';\nfunction getCORSRequest() {\n    if (root.XMLHttpRequest) {\n        return new root.XMLHttpRequest();\n    }\n    else if (!!root.XDomainRequest) {\n        return new root.XDomainRequest();\n    }\n    else {\n        throw new Error('CORS is not supported by your browser');\n    }\n}\nfunction getXMLHttpRequest() {\n    if (root.XMLHttpRequest) {\n        return new root.XMLHttpRequest();\n    }\n    else {\n        var progId = void 0;\n        try {\n            var progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'];\n            for (var i = 0; i < 3; i++) {\n                try {\n                    progId = progIds[i];\n                    if (new root.ActiveXObject(progId)) {\n                        break;\n                    }\n                }\n                catch (e) {\n                }\n            }\n            return new root.ActiveXObject(progId);\n        }\n        catch (e) {\n            throw new Error('XMLHttpRequest is not supported by your browser');\n        }\n    }\n}\nexport function ajaxGet(url, headers) {\n    return new AjaxObservable({ method: 'GET', url: url, headers: headers });\n}\nexport function ajaxPost(url, body, headers) {\n    return new AjaxObservable({ method: 'POST', url: url, body: body, headers: headers });\n}\nexport function ajaxDelete(url, headers) {\n    return new AjaxObservable({ method: 'DELETE', url: url, headers: headers });\n}\nexport function ajaxPut(url, body, headers) {\n    return new AjaxObservable({ method: 'PUT', url: url, body: body, headers: headers });\n}\nexport function ajaxPatch(url, body, headers) {\n    return new AjaxObservable({ method: 'PATCH', url: url, body: body, headers: headers });\n}\nvar mapResponse = map(function (x, index) { return x.response; });\nexport function ajaxGetJSON(url, headers) {\n    return mapResponse(new AjaxObservable({\n        method: 'GET',\n        url: url,\n        responseType: 'json',\n        headers: headers\n    }));\n}\nvar AjaxObservable = (function (_super) {\n    __extends(AjaxObservable, _super);\n    function AjaxObservable(urlOrRequest) {\n        var _this = _super.call(this) || this;\n        var request = {\n            async: true,\n            createXHR: function () {\n                return this.crossDomain ? getCORSRequest() : getXMLHttpRequest();\n            },\n            crossDomain: true,\n            withCredentials: false,\n            headers: {},\n            method: 'GET',\n            responseType: 'json',\n            timeout: 0\n        };\n        if (typeof urlOrRequest === 'string') {\n            request.url = urlOrRequest;\n        }\n        else {\n            for (var prop in urlOrRequest) {\n                if (urlOrRequest.hasOwnProperty(prop)) {\n                    request[prop] = urlOrRequest[prop];\n                }\n            }\n        }\n        _this.request = request;\n        return _this;\n    }\n    AjaxObservable.prototype._subscribe = function (subscriber) {\n        return new AjaxSubscriber(subscriber, this.request);\n    };\n    AjaxObservable.create = (function () {\n        var create = function (urlOrRequest) {\n            return new AjaxObservable(urlOrRequest);\n        };\n        create.get = ajaxGet;\n        create.post = ajaxPost;\n        create.delete = ajaxDelete;\n        create.put = ajaxPut;\n        create.patch = ajaxPatch;\n        create.getJSON = ajaxGetJSON;\n        return create;\n    })();\n    return AjaxObservable;\n}(Observable));\nexport { AjaxObservable };\nvar AjaxSubscriber = (function (_super) {\n    __extends(AjaxSubscriber, _super);\n    function AjaxSubscriber(destination, request) {\n        var _this = _super.call(this, destination) || this;\n        _this.request = request;\n        _this.done = false;\n        var headers = request.headers = request.headers || {};\n        if (!request.crossDomain && !_this.getHeader(headers, 'X-Requested-With')) {\n            headers['X-Requested-With'] = 'XMLHttpRequest';\n        }\n        var contentTypeHeader = _this.getHeader(headers, 'Content-Type');\n        if (!contentTypeHeader && !(root.FormData && request.body instanceof root.FormData) && typeof request.body !== 'undefined') {\n            headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';\n        }\n        request.body = _this.serializeBody(request.body, _this.getHeader(request.headers, 'Content-Type'));\n        _this.send();\n        return _this;\n    }\n    AjaxSubscriber.prototype.next = function (e) {\n        this.done = true;\n        var _a = this, xhr = _a.xhr, request = _a.request, destination = _a.destination;\n        var result;\n        try {\n            result = new AjaxResponse(e, xhr, request);\n        }\n        catch (err) {\n            return destination.error(err);\n        }\n        destination.next(result);\n    };\n    AjaxSubscriber.prototype.send = function () {\n        var _a = this, request = _a.request, _b = _a.request, user = _b.user, method = _b.method, url = _b.url, async = _b.async, password = _b.password, headers = _b.headers, body = _b.body;\n        try {\n            var xhr = this.xhr = request.createXHR();\n            this.setupEvents(xhr, request);\n            if (user) {\n                xhr.open(method, url, async, user, password);\n            }\n            else {\n                xhr.open(method, url, async);\n            }\n            if (async) {\n                xhr.timeout = request.timeout;\n                xhr.responseType = request.responseType;\n            }\n            if ('withCredentials' in xhr) {\n                xhr.withCredentials = !!request.withCredentials;\n            }\n            this.setHeaders(xhr, headers);\n            if (body) {\n                xhr.send(body);\n            }\n            else {\n                xhr.send();\n            }\n        }\n        catch (err) {\n            this.error(err);\n        }\n    };\n    AjaxSubscriber.prototype.serializeBody = function (body, contentType) {\n        if (!body || typeof body === 'string') {\n            return body;\n        }\n        else if (root.FormData && body instanceof root.FormData) {\n            return body;\n        }\n        if (contentType) {\n            var splitIndex = contentType.indexOf(';');\n            if (splitIndex !== -1) {\n                contentType = contentType.substring(0, splitIndex);\n            }\n        }\n        switch (contentType) {\n            case 'application/x-www-form-urlencoded':\n                return Object.keys(body).map(function (key) { return encodeURIComponent(key) + \"=\" + encodeURIComponent(body[key]); }).join('&');\n            case 'application/json':\n                return JSON.stringify(body);\n            default:\n                return body;\n        }\n    };\n    AjaxSubscriber.prototype.setHeaders = function (xhr, headers) {\n        for (var key in headers) {\n            if (headers.hasOwnProperty(key)) {\n                xhr.setRequestHeader(key, headers[key]);\n            }\n        }\n    };\n    AjaxSubscriber.prototype.getHeader = function (headers, headerName) {\n        for (var key in headers) {\n            if (key.toLowerCase() === headerName.toLowerCase()) {\n                return headers[key];\n            }\n        }\n        return undefined;\n    };\n    AjaxSubscriber.prototype.setupEvents = function (xhr, request) {\n        var progressSubscriber = request.progressSubscriber;\n        function xhrTimeout(e) {\n            var _a = xhrTimeout, subscriber = _a.subscriber, progressSubscriber = _a.progressSubscriber, request = _a.request;\n            if (progressSubscriber) {\n                progressSubscriber.error(e);\n            }\n            var error;\n            try {\n                error = new AjaxTimeoutError(this, request);\n            }\n            catch (err) {\n                error = err;\n            }\n            subscriber.error(error);\n        }\n        xhr.ontimeout = xhrTimeout;\n        xhrTimeout.request = request;\n        xhrTimeout.subscriber = this;\n        xhrTimeout.progressSubscriber = progressSubscriber;\n        if (xhr.upload && 'withCredentials' in xhr) {\n            if (progressSubscriber) {\n                var xhrProgress_1;\n                xhrProgress_1 = function (e) {\n                    var progressSubscriber = xhrProgress_1.progressSubscriber;\n                    progressSubscriber.next(e);\n                };\n                if (root.XDomainRequest) {\n                    xhr.onprogress = xhrProgress_1;\n                }\n                else {\n                    xhr.upload.onprogress = xhrProgress_1;\n                }\n                xhrProgress_1.progressSubscriber = progressSubscriber;\n            }\n            var xhrError_1;\n            xhrError_1 = function (e) {\n                var _a = xhrError_1, progressSubscriber = _a.progressSubscriber, subscriber = _a.subscriber, request = _a.request;\n                if (progressSubscriber) {\n                    progressSubscriber.error(e);\n                }\n                var error;\n                try {\n                    error = new AjaxError('ajax error', this, request);\n                }\n                catch (err) {\n                    error = err;\n                }\n                subscriber.error(error);\n            };\n            xhr.onerror = xhrError_1;\n            xhrError_1.request = request;\n            xhrError_1.subscriber = this;\n            xhrError_1.progressSubscriber = progressSubscriber;\n        }\n        function xhrReadyStateChange(e) {\n            return;\n        }\n        xhr.onreadystatechange = xhrReadyStateChange;\n        xhrReadyStateChange.subscriber = this;\n        xhrReadyStateChange.progressSubscriber = progressSubscriber;\n        xhrReadyStateChange.request = request;\n        function xhrLoad(e) {\n            var _a = xhrLoad, subscriber = _a.subscriber, progressSubscriber = _a.progressSubscriber, request = _a.request;\n            if (this.readyState === 4) {\n                var status_1 = this.status === 1223 ? 204 : this.status;\n                var response = (this.responseType === 'text' ? (this.response || this.responseText) : this.response);\n                if (status_1 === 0) {\n                    status_1 = response ? 200 : 0;\n                }\n                if (status_1 < 400) {\n                    if (progressSubscriber) {\n                        progressSubscriber.complete();\n                    }\n                    subscriber.next(e);\n                    subscriber.complete();\n                }\n                else {\n                    if (progressSubscriber) {\n                        progressSubscriber.error(e);\n                    }\n                    var error = void 0;\n                    try {\n                        error = new AjaxError('ajax error ' + status_1, this, request);\n                    }\n                    catch (err) {\n                        error = err;\n                    }\n                    subscriber.error(error);\n                }\n            }\n        }\n        xhr.onload = xhrLoad;\n        xhrLoad.subscriber = this;\n        xhrLoad.progressSubscriber = progressSubscriber;\n        xhrLoad.request = request;\n    };\n    AjaxSubscriber.prototype.unsubscribe = function () {\n        var _a = this, done = _a.done, xhr = _a.xhr;\n        if (!done && xhr && xhr.readyState !== 4 && typeof xhr.abort === 'function') {\n            xhr.abort();\n        }\n        _super.prototype.unsubscribe.call(this);\n    };\n    return AjaxSubscriber;\n}(Subscriber));\nexport { AjaxSubscriber };\nvar AjaxResponse = (function () {\n    function AjaxResponse(originalEvent, xhr, request) {\n        this.originalEvent = originalEvent;\n        this.xhr = xhr;\n        this.request = request;\n        this.status = xhr.status;\n        this.responseType = xhr.responseType || request.responseType;\n        this.response = parseXhrResponse(this.responseType, xhr);\n    }\n    return AjaxResponse;\n}());\nexport { AjaxResponse };\nvar AjaxErrorImpl = (function () {\n    function AjaxErrorImpl(message, xhr, request) {\n        Error.call(this);\n        this.message = message;\n        this.name = 'AjaxError';\n        this.xhr = xhr;\n        this.request = request;\n        this.status = xhr.status;\n        this.responseType = xhr.responseType || request.responseType;\n        this.response = parseXhrResponse(this.responseType, xhr);\n        return this;\n    }\n    AjaxErrorImpl.prototype = Object.create(Error.prototype);\n    return AjaxErrorImpl;\n})();\nexport var AjaxError = AjaxErrorImpl;\nfunction parseJson(xhr) {\n    if ('response' in xhr) {\n        return xhr.responseType ? xhr.response : JSON.parse(xhr.response || xhr.responseText || 'null');\n    }\n    else {\n        return JSON.parse(xhr.responseText || 'null');\n    }\n}\nfunction parseXhrResponse(responseType, xhr) {\n    switch (responseType) {\n        case 'json':\n            return parseJson(xhr);\n        case 'xml':\n            return xhr.responseXML;\n        case 'text':\n        default:\n            return ('response' in xhr) ? xhr.response : xhr.responseText;\n    }\n}\nvar AjaxTimeoutErrorImpl = (function () {\n    function AjaxTimeoutErrorImpl(xhr, request) {\n        AjaxError.call(this, 'ajax timeout', xhr, request);\n        this.name = 'AjaxTimeoutError';\n        return this;\n    }\n    AjaxTimeoutErrorImpl.prototype = Object.create(AjaxError.prototype);\n    return AjaxTimeoutErrorImpl;\n})();\nexport var AjaxTimeoutError = AjaxTimeoutErrorImpl;\n//# sourceMappingURL=AjaxObservable.js.map","import { AjaxObservable } from './AjaxObservable';\nexport var ajax = (function () { return AjaxObservable.create; })();\n//# sourceMappingURL=ajax.js.map","var ArgumentOutOfRangeErrorImpl = (function () {\n    function ArgumentOutOfRangeErrorImpl() {\n        Error.call(this);\n        this.message = 'argument out of range';\n        this.name = 'ArgumentOutOfRangeError';\n        return this;\n    }\n    ArgumentOutOfRangeErrorImpl.prototype = Object.create(Error.prototype);\n    return ArgumentOutOfRangeErrorImpl;\n})();\nexport var ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;\n//# sourceMappingURL=ArgumentOutOfRangeError.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { EMPTY } from '../observable/empty';\nexport function take(count) {\n    return function (source) {\n        if (count === 0) {\n            return EMPTY;\n        }\n        else {\n            return source.lift(new TakeOperator(count));\n        }\n    };\n}\nvar TakeOperator = (function () {\n    function TakeOperator(total) {\n        this.total = total;\n        if (this.total < 0) {\n            throw new ArgumentOutOfRangeError;\n        }\n    }\n    TakeOperator.prototype.call = function (subscriber, source) {\n        return source.subscribe(new TakeSubscriber(subscriber, this.total));\n    };\n    return TakeOperator;\n}());\nvar TakeSubscriber = (function (_super) {\n    __extends(TakeSubscriber, _super);\n    function TakeSubscriber(destination, total) {\n        var _this = _super.call(this, destination) || this;\n        _this.total = total;\n        _this.count = 0;\n        return _this;\n    }\n    TakeSubscriber.prototype._next = function (value) {\n        var total = this.total;\n        var count = ++this.count;\n        if (count <= total) {\n            this.destination.next(value);\n            if (count === total) {\n                this.destination.complete();\n                this.unsubscribe();\n            }\n        }\n    };\n    return TakeSubscriber;\n}(Subscriber));\n//# sourceMappingURL=take.js.map"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/javascripts/worker/search.c03f0417.min.js b/assets/javascripts/worker/search.5eca75d3.min.js
similarity index 71%
rename from assets/javascripts/worker/search.c03f0417.min.js
rename to assets/javascripts/worker/search.5eca75d3.min.js
index cf97f5f1f..e714c21cc 100644
--- a/assets/javascripts/worker/search.c03f0417.min.js
+++ b/assets/javascripts/worker/search.5eca75d3.min.js
@@ -1,59 +1,59 @@
-!function(e){var t={};function r(n){if(t[n])return t[n].exports;var i=t[n]={i:n,l:!1,exports:{}};return e[n].call(i.exports,i,i.exports,r),i.l=!0,i.exports}r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)r.d(n,i,function(t){return e[t]}.bind(null,i));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=4)}([function(e,t,r){"use strict";
+!function(e){var t={};function r(n){if(t[n])return t[n].exports;var i=t[n]={i:n,l:!1,exports:{}};return e[n].call(i.exports,i,i.exports,r),i.l=!0,i.exports}r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)r.d(n,i,function(t){return e[t]}.bind(null,i));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=5)}([function(e,t,r){"use strict";
 /*!
  * escape-html
  * Copyright(c) 2012-2013 TJ Holowaychuk
  * Copyright(c) 2015 Andreas Lubbe
  * Copyright(c) 2015 Tiancheng "Timothy" Gu
  * MIT Licensed
- */var n=/["'&<>]/;e.exports=function(e){var t,r=""+e,i=n.exec(r);if(!i)return r;var s="",o=0,a=0;for(o=i.index;o<r.length;o++){switch(r.charCodeAt(o)){case 34:t="&quot;";break;case 38:t="&amp;";break;case 39:t="&#39;";break;case 60:t="&lt;";break;case 62:t="&gt;";break;default:continue}a!==o&&(s+=r.substring(a,o)),a=o+1,s+=t}return a!==o?s+r.substring(a,o):s}},function(e,t,r){(function(t){e.exports=t.lunr=r(3)}).call(this,r(2))},function(e,t){var r;r=function(){return this}();try{r=r||new Function("return this")()}catch(e){"object"==typeof window&&(r=window)}e.exports=r},function(e,t,r){var n,i;
+ */var n=/["'&<>]/;e.exports=function(e){var t,r=""+e,i=n.exec(r);if(!i)return r;var s="",o=0,a=0;for(o=i.index;o<r.length;o++){switch(r.charCodeAt(o)){case 34:t="&quot;";break;case 38:t="&amp;";break;case 39:t="&#39;";break;case 60:t="&lt;";break;case 62:t="&gt;";break;default:continue}a!==o&&(s+=r.substring(a,o)),a=o+1,s+=t}return a!==o?s+r.substring(a,o):s}},function(e,t,r){var n=r(2),i=r(3);void 0===i.lunr&&(i.lunr=n),e.exports=n},function(e,t,r){var n,i;
 /**
- * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.8
- * Copyright (C) 2019 Oliver Nightingale
+ * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9
+ * Copyright (C) 2020 Oliver Nightingale
  * @license MIT
- */!function(){var s,o,a,u,l,c,h,d,f,p,y,m,g,x,v,w,Q,b,S,E,k,L,P,T,O,R,I=function(e){var t=new I.Builder;return t.pipeline.add(I.trimmer,I.stopWordFilter,I.stemmer),t.searchPipeline.add(I.stemmer),e.call(t,t),t.build()};I.version="2.3.8"
+ */!function(){var s,o,a,u,l,c,h,d,f,p,y,m,g,v,x,w,Q,b,S,E,k,L,P,T,O,R,I=function(e){var t=new I.Builder;return t.pipeline.add(I.trimmer,I.stopWordFilter,I.stemmer),t.searchPipeline.add(I.stemmer),e.call(t,t),t.build()};I.version="2.3.9"
 /*!
  * lunr.utils
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.utils={},I.utils.warn=(s=this,function(e){s.console&&console.warn&&console.warn(e)}),I.utils.asString=function(e){return null==e?"":e.toString()},I.utils.clone=function(e){if(null==e)return e;for(var t=Object.create(null),r=Object.keys(e),n=0;n<r.length;n++){var i=r[n],s=e[i];if(Array.isArray(s))t[i]=s.slice();else{if("string"!=typeof s&&"number"!=typeof s&&"boolean"!=typeof s)throw new TypeError("clone is not deep and does not support nested objects");t[i]=s}}return t},I.FieldRef=function(e,t,r){this.docRef=e,this.fieldName=t,this._stringValue=r},I.FieldRef.joiner="/",I.FieldRef.fromString=function(e){var t=e.indexOf(I.FieldRef.joiner);if(-1===t)throw"malformed field ref string";var r=e.slice(0,t),n=e.slice(t+1);return new I.FieldRef(n,r,e)},I.FieldRef.prototype.toString=function(){return null==this._stringValue&&(this._stringValue=this.fieldName+I.FieldRef.joiner+this.docRef),this._stringValue}
 /*!
  * lunr.Set
- * Copyright (C) 2019 Oliver Nightingale
- */,I.Set=function(e){if(this.elements=Object.create(null),e){this.length=e.length;for(var t=0;t<this.length;t++)this.elements[e[t]]=!0}else this.length=0},I.Set.complete={intersect:function(e){return e},union:function(e){return e},contains:function(){return!0}},I.Set.empty={intersect:function(){return this},union:function(e){return e},contains:function(){return!1}},I.Set.prototype.contains=function(e){return!!this.elements[e]},I.Set.prototype.intersect=function(e){var t,r,n,i=[];if(e===I.Set.complete)return this;if(e===I.Set.empty)return e;this.length<e.length?(t=this,r=e):(t=e,r=this),n=Object.keys(t.elements);for(var s=0;s<n.length;s++){var o=n[s];o in r.elements&&i.push(o)}return new I.Set(i)},I.Set.prototype.union=function(e){return e===I.Set.complete?I.Set.complete:e===I.Set.empty?this:new I.Set(Object.keys(this.elements).concat(Object.keys(e.elements)))},I.idf=function(e,t){var r=0;for(var n in e)"_index"!=n&&(r+=Object.keys(e[n]).length);var i=(t-r+.5)/(r+.5);return Math.log(1+Math.abs(i))},I.Token=function(e,t){this.str=e||"",this.metadata=t||{}},I.Token.prototype.toString=function(){return this.str},I.Token.prototype.update=function(e){return this.str=e(this.str,this.metadata),this},I.Token.prototype.clone=function(e){return e=e||function(e){return e},new I.Token(e(this.str,this.metadata),this.metadata)}
+ * Copyright (C) 2020 Oliver Nightingale
+ */,I.Set=function(e){if(this.elements=Object.create(null),e){this.length=e.length;for(var t=0;t<this.length;t++)this.elements[e[t]]=!0}else this.length=0},I.Set.complete={intersect:function(e){return e},union:function(){return this},contains:function(){return!0}},I.Set.empty={intersect:function(){return this},union:function(e){return e},contains:function(){return!1}},I.Set.prototype.contains=function(e){return!!this.elements[e]},I.Set.prototype.intersect=function(e){var t,r,n,i=[];if(e===I.Set.complete)return this;if(e===I.Set.empty)return e;this.length<e.length?(t=this,r=e):(t=e,r=this),n=Object.keys(t.elements);for(var s=0;s<n.length;s++){var o=n[s];o in r.elements&&i.push(o)}return new I.Set(i)},I.Set.prototype.union=function(e){return e===I.Set.complete?I.Set.complete:e===I.Set.empty?this:new I.Set(Object.keys(this.elements).concat(Object.keys(e.elements)))},I.idf=function(e,t){var r=0;for(var n in e)"_index"!=n&&(r+=Object.keys(e[n]).length);var i=(t-r+.5)/(r+.5);return Math.log(1+Math.abs(i))},I.Token=function(e,t){this.str=e||"",this.metadata=t||{}},I.Token.prototype.toString=function(){return this.str},I.Token.prototype.update=function(e){return this.str=e(this.str,this.metadata),this},I.Token.prototype.clone=function(e){return e=e||function(e){return e},new I.Token(e(this.str,this.metadata),this.metadata)}
 /*!
  * lunr.tokenizer
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.tokenizer=function(e,t){if(null==e||null==e)return[];if(Array.isArray(e))return e.map((function(e){return new I.Token(I.utils.asString(e).toLowerCase(),I.utils.clone(t))}));for(var r=e.toString().toLowerCase(),n=r.length,i=[],s=0,o=0;s<=n;s++){var a=s-o;if(r.charAt(s).match(I.tokenizer.separator)||s==n){if(a>0){var u=I.utils.clone(t)||{};u.position=[o,a],u.index=i.length,i.push(new I.Token(r.slice(o,s),u))}o=s+1}}return i},I.tokenizer.separator=/[\s\-]+/
 /*!
  * lunr.Pipeline
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.Pipeline=function(){this._stack=[]},I.Pipeline.registeredFunctions=Object.create(null),I.Pipeline.registerFunction=function(e,t){t in this.registeredFunctions&&I.utils.warn("Overwriting existing registered function: "+t),e.label=t,I.Pipeline.registeredFunctions[e.label]=e},I.Pipeline.warnIfFunctionNotRegistered=function(e){e.label&&e.label in this.registeredFunctions||I.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n",e)},I.Pipeline.load=function(e){var t=new I.Pipeline;return e.forEach((function(e){var r=I.Pipeline.registeredFunctions[e];if(!r)throw new Error("Cannot load unregistered function: "+e);t.add(r)})),t},I.Pipeline.prototype.add=function(){var e=Array.prototype.slice.call(arguments);e.forEach((function(e){I.Pipeline.warnIfFunctionNotRegistered(e),this._stack.push(e)}),this)},I.Pipeline.prototype.after=function(e,t){I.Pipeline.warnIfFunctionNotRegistered(t);var r=this._stack.indexOf(e);if(-1==r)throw new Error("Cannot find existingFn");r+=1,this._stack.splice(r,0,t)},I.Pipeline.prototype.before=function(e,t){I.Pipeline.warnIfFunctionNotRegistered(t);var r=this._stack.indexOf(e);if(-1==r)throw new Error("Cannot find existingFn");this._stack.splice(r,0,t)},I.Pipeline.prototype.remove=function(e){var t=this._stack.indexOf(e);-1!=t&&this._stack.splice(t,1)},I.Pipeline.prototype.run=function(e){for(var t=this._stack.length,r=0;r<t;r++){for(var n=this._stack[r],i=[],s=0;s<e.length;s++){var o=n(e[s],s,e);if(null!=o&&""!==o)if(Array.isArray(o))for(var a=0;a<o.length;a++)i.push(o[a]);else i.push(o)}e=i}return e},I.Pipeline.prototype.runString=function(e,t){var r=new I.Token(e,t);return this.run([r]).map((function(e){return e.toString()}))},I.Pipeline.prototype.reset=function(){this._stack=[]},I.Pipeline.prototype.toJSON=function(){return this._stack.map((function(e){return I.Pipeline.warnIfFunctionNotRegistered(e),e.label}))}
 /*!
  * lunr.Vector
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.Vector=function(e){this._magnitude=0,this.elements=e||[]},I.Vector.prototype.positionForIndex=function(e){if(0==this.elements.length)return 0;for(var t=0,r=this.elements.length/2,n=r-t,i=Math.floor(n/2),s=this.elements[2*i];n>1&&(s<e&&(t=i),s>e&&(r=i),s!=e);)n=r-t,i=t+Math.floor(n/2),s=this.elements[2*i];return s==e||s>e?2*i:s<e?2*(i+1):void 0},I.Vector.prototype.insert=function(e,t){this.upsert(e,t,(function(){throw"duplicate index"}))},I.Vector.prototype.upsert=function(e,t,r){this._magnitude=0;var n=this.positionForIndex(e);this.elements[n]==e?this.elements[n+1]=r(this.elements[n+1],t):this.elements.splice(n,0,e,t)},I.Vector.prototype.magnitude=function(){if(this._magnitude)return this._magnitude;for(var e=0,t=this.elements.length,r=1;r<t;r+=2){var n=this.elements[r];e+=n*n}return this._magnitude=Math.sqrt(e)},I.Vector.prototype.dot=function(e){for(var t=0,r=this.elements,n=e.elements,i=r.length,s=n.length,o=0,a=0,u=0,l=0;u<i&&l<s;)(o=r[u])<(a=n[l])?u+=2:o>a?l+=2:o==a&&(t+=r[u+1]*n[l+1],u+=2,l+=2);return t},I.Vector.prototype.similarity=function(e){return this.dot(e)/this.magnitude()||0},I.Vector.prototype.toArray=function(){for(var e=new Array(this.elements.length/2),t=1,r=0;t<this.elements.length;t+=2,r++)e[r]=this.elements[t];return e},I.Vector.prototype.toJSON=function(){return this.elements}
 /*!
  * lunr.stemmer
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt
- */,I.stemmer=(o={ational:"ate",tional:"tion",enci:"ence",anci:"ance",izer:"ize",bli:"ble",alli:"al",entli:"ent",eli:"e",ousli:"ous",ization:"ize",ation:"ate",ator:"ate",alism:"al",iveness:"ive",fulness:"ful",ousness:"ous",aliti:"al",iviti:"ive",biliti:"ble",logi:"log"},a={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},u="[aeiouy]",l="[^aeiou][^aeiouy]*",c=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),h=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),d=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*([aeiouy][aeiou]*)?$"),f=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy]"),p=/^(.+?)(ss|i)es$/,y=/^(.+?)([^s])s$/,m=/^(.+?)eed$/,g=/^(.+?)(ed|ing)$/,x=/.$/,v=/(at|bl|iz)$/,w=new RegExp("([^aeiouylsz])\\1$"),Q=new RegExp("^"+l+u+"[^aeiouwxy]$"),b=/^(.+?[^aeiou])y$/,S=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,E=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,k=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,L=/^(.+?)(s|t)(ion)$/,P=/^(.+?)e$/,T=/ll$/,O=new RegExp("^"+l+u+"[^aeiouwxy]$"),R=function(e){var t,r,n,i,s,u,l;if(e.length<3)return e;if("y"==(n=e.substr(0,1))&&(e=n.toUpperCase()+e.substr(1)),s=y,(i=p).test(e)?e=e.replace(i,"$1$2"):s.test(e)&&(e=e.replace(s,"$1$2")),s=g,(i=m).test(e)){var R=i.exec(e);(i=c).test(R[1])&&(i=x,e=e.replace(i,""))}else s.test(e)&&(t=(R=s.exec(e))[1],(s=f).test(t)&&(u=w,l=Q,(s=v).test(e=t)?e+="e":u.test(e)?(i=x,e=e.replace(i,"")):l.test(e)&&(e+="e")));return(i=b).test(e)&&(e=(t=(R=i.exec(e))[1])+"i"),(i=S).test(e)&&(t=(R=i.exec(e))[1],r=R[2],(i=c).test(t)&&(e=t+o[r])),(i=E).test(e)&&(t=(R=i.exec(e))[1],r=R[2],(i=c).test(t)&&(e=t+a[r])),s=L,(i=k).test(e)?(t=(R=i.exec(e))[1],(i=h).test(t)&&(e=t)):s.test(e)&&(t=(R=s.exec(e))[1]+R[2],(s=h).test(t)&&(e=t)),(i=P).test(e)&&(t=(R=i.exec(e))[1],s=d,u=O,((i=h).test(t)||s.test(t)&&!u.test(t))&&(e=t)),s=h,(i=T).test(e)&&s.test(e)&&(i=x,e=e.replace(i,"")),"y"==n&&(e=n.toLowerCase()+e.substr(1)),e},function(e){return e.update(R)}),I.Pipeline.registerFunction(I.stemmer,"stemmer")
+ */,I.stemmer=(o={ational:"ate",tional:"tion",enci:"ence",anci:"ance",izer:"ize",bli:"ble",alli:"al",entli:"ent",eli:"e",ousli:"ous",ization:"ize",ation:"ate",ator:"ate",alism:"al",iveness:"ive",fulness:"ful",ousness:"ous",aliti:"al",iviti:"ive",biliti:"ble",logi:"log"},a={icate:"ic",ative:"",alize:"al",iciti:"ic",ical:"ic",ful:"",ness:""},u="[aeiouy]",l="[^aeiou][^aeiouy]*",c=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),h=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*[aeiouy][aeiou]*[^aeiou][^aeiouy]*"),d=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*([aeiouy][aeiou]*)?$"),f=new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy]"),p=/^(.+?)(ss|i)es$/,y=/^(.+?)([^s])s$/,m=/^(.+?)eed$/,g=/^(.+?)(ed|ing)$/,v=/.$/,x=/(at|bl|iz)$/,w=new RegExp("([^aeiouylsz])\\1$"),Q=new RegExp("^"+l+u+"[^aeiouwxy]$"),b=/^(.+?[^aeiou])y$/,S=/^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/,E=/^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/,k=/^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/,L=/^(.+?)(s|t)(ion)$/,P=/^(.+?)e$/,T=/ll$/,O=new RegExp("^"+l+u+"[^aeiouwxy]$"),R=function(e){var t,r,n,i,s,u,l;if(e.length<3)return e;if("y"==(n=e.substr(0,1))&&(e=n.toUpperCase()+e.substr(1)),s=y,(i=p).test(e)?e=e.replace(i,"$1$2"):s.test(e)&&(e=e.replace(s,"$1$2")),s=g,(i=m).test(e)){var R=i.exec(e);(i=c).test(R[1])&&(i=v,e=e.replace(i,""))}else s.test(e)&&(t=(R=s.exec(e))[1],(s=f).test(t)&&(u=w,l=Q,(s=x).test(e=t)?e+="e":u.test(e)?(i=v,e=e.replace(i,"")):l.test(e)&&(e+="e")));return(i=b).test(e)&&(e=(t=(R=i.exec(e))[1])+"i"),(i=S).test(e)&&(t=(R=i.exec(e))[1],r=R[2],(i=c).test(t)&&(e=t+o[r])),(i=E).test(e)&&(t=(R=i.exec(e))[1],r=R[2],(i=c).test(t)&&(e=t+a[r])),s=L,(i=k).test(e)?(t=(R=i.exec(e))[1],(i=h).test(t)&&(e=t)):s.test(e)&&(t=(R=s.exec(e))[1]+R[2],(s=h).test(t)&&(e=t)),(i=P).test(e)&&(t=(R=i.exec(e))[1],s=d,u=O,((i=h).test(t)||s.test(t)&&!u.test(t))&&(e=t)),s=h,(i=T).test(e)&&s.test(e)&&(i=v,e=e.replace(i,"")),"y"==n&&(e=n.toLowerCase()+e.substr(1)),e},function(e){return e.update(R)}),I.Pipeline.registerFunction(I.stemmer,"stemmer")
 /*!
  * lunr.stopWordFilter
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.generateStopWordFilter=function(e){var t=e.reduce((function(e,t){return e[t]=t,e}),{});return function(e){if(e&&t[e.toString()]!==e.toString())return e}},I.stopWordFilter=I.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),I.Pipeline.registerFunction(I.stopWordFilter,"stopWordFilter")
 /*!
  * lunr.trimmer
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.trimmer=function(e){return e.update((function(e){return e.replace(/^\W+/,"").replace(/\W+$/,"")}))},I.Pipeline.registerFunction(I.trimmer,"trimmer")
 /*!
  * lunr.TokenSet
- * Copyright (C) 2019 Oliver Nightingale
+ * Copyright (C) 2020 Oliver Nightingale
  */,I.TokenSet=function(){this.final=!1,this.edges={},this.id=I.TokenSet._nextId,I.TokenSet._nextId+=1},I.TokenSet._nextId=1,I.TokenSet.fromArray=function(e){for(var t=new I.TokenSet.Builder,r=0,n=e.length;r<n;r++)t.insert(e[r]);return t.finish(),t.root},I.TokenSet.fromClause=function(e){return"editDistance"in e?I.TokenSet.fromFuzzyString(e.term,e.editDistance):I.TokenSet.fromString(e.term)},I.TokenSet.fromFuzzyString=function(e,t){for(var r=new I.TokenSet,n=[{node:r,editsRemaining:t,str:e}];n.length;){var i=n.pop();if(i.str.length>0){var s,o=i.str.charAt(0);o in i.node.edges?s=i.node.edges[o]:(s=new I.TokenSet,i.node.edges[o]=s),1==i.str.length&&(s.final=!0),n.push({node:s,editsRemaining:i.editsRemaining,str:i.str.slice(1)})}if(0!=i.editsRemaining){if("*"in i.node.edges)var a=i.node.edges["*"];else{a=new I.TokenSet;i.node.edges["*"]=a}if(0==i.str.length&&(a.final=!0),n.push({node:a,editsRemaining:i.editsRemaining-1,str:i.str}),i.str.length>1&&n.push({node:i.node,editsRemaining:i.editsRemaining-1,str:i.str.slice(1)}),1==i.str.length&&(i.node.final=!0),i.str.length>=1){if("*"in i.node.edges)var u=i.node.edges["*"];else{u=new I.TokenSet;i.node.edges["*"]=u}1==i.str.length&&(u.final=!0),n.push({node:u,editsRemaining:i.editsRemaining-1,str:i.str.slice(1)})}if(i.str.length>1){var l,c=i.str.charAt(0),h=i.str.charAt(1);h in i.node.edges?l=i.node.edges[h]:(l=new I.TokenSet,i.node.edges[h]=l),1==i.str.length&&(l.final=!0),n.push({node:l,editsRemaining:i.editsRemaining-1,str:c+i.str.slice(2)})}}}return r},I.TokenSet.fromString=function(e){for(var t=new I.TokenSet,r=t,n=0,i=e.length;n<i;n++){var s=e[n],o=n==i-1;if("*"==s)t.edges[s]=t,t.final=o;else{var a=new I.TokenSet;a.final=o,t.edges[s]=a,t=a}}return r},I.TokenSet.prototype.toArray=function(){for(var e=[],t=[{prefix:"",node:this}];t.length;){var r=t.pop(),n=Object.keys(r.node.edges),i=n.length;r.node.final&&(r.prefix.charAt(0),e.push(r.prefix));for(var s=0;s<i;s++){var o=n[s];t.push({prefix:r.prefix.concat(o),node:r.node.edges[o]})}}return e},I.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",t=Object.keys(this.edges).sort(),r=t.length,n=0;n<r;n++){var i=t[n];e=e+i+this.edges[i].id}return e},I.TokenSet.prototype.intersect=function(e){for(var t=new I.TokenSet,r=void 0,n=[{qNode:e,output:t,node:this}];n.length;){r=n.pop();for(var i=Object.keys(r.qNode.edges),s=i.length,o=Object.keys(r.node.edges),a=o.length,u=0;u<s;u++)for(var l=i[u],c=0;c<a;c++){var h=o[c];if(h==l||"*"==l){var d=r.node.edges[h],f=r.qNode.edges[l],p=d.final&&f.final,y=void 0;h in r.output.edges?(y=r.output.edges[h]).final=y.final||p:((y=new I.TokenSet).final=p,r.output.edges[h]=y),n.push({qNode:f,output:y,node:d})}}}return t},I.TokenSet.Builder=function(){this.previousWord="",this.root=new I.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},I.TokenSet.Builder.prototype.insert=function(e){var t,r=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var n=0;n<e.length&&n<this.previousWord.length&&e[n]==this.previousWord[n];n++)r++;this.minimize(r),t=0==this.uncheckedNodes.length?this.root:this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(n=r;n<e.length;n++){var i=new I.TokenSet,s=e[n];t.edges[s]=i,this.uncheckedNodes.push({parent:t,char:s,child:i}),t=i}t.final=!0,this.previousWord=e},I.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},I.TokenSet.Builder.prototype.minimize=function(e){for(var t=this.uncheckedNodes.length-1;t>=e;t--){var r=this.uncheckedNodes[t],n=r.child.toString();n in this.minimizedNodes?r.parent.edges[r.char]=this.minimizedNodes[n]:(r.child._str=n,this.minimizedNodes[n]=r.child),this.uncheckedNodes.pop()}}
 /*!
  * lunr.Index
- * Copyright (C) 2019 Oliver Nightingale
- */,I.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},I.Index.prototype.search=function(e){return this.query((function(t){new I.QueryParser(e,t).parse()}))},I.Index.prototype.query=function(e){for(var t=new I.Query(this.fields),r=Object.create(null),n=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=0;a<this.fields.length;a++)n[this.fields[a]]=new I.Vector;e.call(t,t);for(a=0;a<t.clauses.length;a++){var u=t.clauses[a],l=null,c=I.Set.complete;l=u.usePipeline?this.pipeline.runString(u.term,{fields:u.fields}):[u.term];for(var h=0;h<l.length;h++){var d=l[h];u.term=d;var f=I.TokenSet.fromClause(u),p=this.tokenSet.intersect(f).toArray();if(0===p.length&&u.presence===I.Query.presence.REQUIRED){for(var y=0;y<u.fields.length;y++){s[j=u.fields[y]]=I.Set.empty}break}for(var m=0;m<p.length;m++){var g=p[m],x=this.invertedIndex[g],v=x._index;for(y=0;y<u.fields.length;y++){var w=x[j=u.fields[y]],Q=Object.keys(w),b=g+"/"+j,S=new I.Set(Q);if(u.presence==I.Query.presence.REQUIRED&&(c=c.union(S),void 0===s[j]&&(s[j]=I.Set.complete)),u.presence!=I.Query.presence.PROHIBITED){if(n[j].upsert(v,u.boost,(function(e,t){return e+t})),!i[b]){for(var E=0;E<Q.length;E++){var k,L=Q[E],P=new I.FieldRef(L,j),T=w[L];void 0===(k=r[P])?r[P]=new I.MatchData(g,j,T):k.add(g,j,T)}i[b]=!0}}else void 0===o[j]&&(o[j]=I.Set.empty),o[j]=o[j].union(S)}}}if(u.presence===I.Query.presence.REQUIRED)for(y=0;y<u.fields.length;y++){s[j=u.fields[y]]=s[j].intersect(c)}}var O=I.Set.complete,R=I.Set.empty;for(a=0;a<this.fields.length;a++){var j;s[j=this.fields[a]]&&(O=O.intersect(s[j])),o[j]&&(R=R.union(o[j]))}var F=Object.keys(r),C=[],_=Object.create(null);if(t.isNegated()){F=Object.keys(this.fieldVectors);for(a=0;a<F.length;a++){P=F[a];var N=I.FieldRef.fromString(P);r[P]=new I.MatchData}}for(a=0;a<F.length;a++){var D=(N=I.FieldRef.fromString(F[a])).docRef;if(O.contains(D)&&!R.contains(D)){var A,B=this.fieldVectors[N],V=n[N.fieldName].similarity(B);if(void 0!==(A=_[D]))A.score+=V,A.matchData.combine(r[N]);else{var z={ref:D,score:V,matchData:r[N]};_[D]=z,C.push(z)}}}return C.sort((function(e,t){return t.score-e.score}))},I.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map((function(e){return[e,this.invertedIndex[e]]}),this),t=Object.keys(this.fieldVectors).map((function(e){return[e,this.fieldVectors[e].toJSON()]}),this);return{version:I.version,fields:this.fields,fieldVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},I.Index.load=function(e){var t={},r={},n=e.fieldVectors,i=Object.create(null),s=e.invertedIndex,o=new I.TokenSet.Builder,a=I.Pipeline.load(e.pipeline);e.version!=I.version&&I.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+I.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<n.length;u++){var l=(h=n[u])[0],c=h[1];r[l]=new I.Vector(c)}for(u=0;u<s.length;u++){var h,d=(h=s[u])[0],f=h[1];o.insert(d),i[d]=f}return o.finish(),t.fields=e.fields,t.fieldVectors=r,t.invertedIndex=i,t.tokenSet=o.root,t.pipeline=a,new I.Index(t)}
+ * Copyright (C) 2020 Oliver Nightingale
+ */,I.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},I.Index.prototype.search=function(e){return this.query((function(t){new I.QueryParser(e,t).parse()}))},I.Index.prototype.query=function(e){for(var t=new I.Query(this.fields),r=Object.create(null),n=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=0;a<this.fields.length;a++)n[this.fields[a]]=new I.Vector;e.call(t,t);for(a=0;a<t.clauses.length;a++){var u=t.clauses[a],l=null,c=I.Set.empty;l=u.usePipeline?this.pipeline.runString(u.term,{fields:u.fields}):[u.term];for(var h=0;h<l.length;h++){var d=l[h];u.term=d;var f=I.TokenSet.fromClause(u),p=this.tokenSet.intersect(f).toArray();if(0===p.length&&u.presence===I.Query.presence.REQUIRED){for(var y=0;y<u.fields.length;y++){s[j=u.fields[y]]=I.Set.empty}break}for(var m=0;m<p.length;m++){var g=p[m],v=this.invertedIndex[g],x=v._index;for(y=0;y<u.fields.length;y++){var w=v[j=u.fields[y]],Q=Object.keys(w),b=g+"/"+j,S=new I.Set(Q);if(u.presence==I.Query.presence.REQUIRED&&(c=c.union(S),void 0===s[j]&&(s[j]=I.Set.complete)),u.presence!=I.Query.presence.PROHIBITED){if(n[j].upsert(x,u.boost,(function(e,t){return e+t})),!i[b]){for(var E=0;E<Q.length;E++){var k,L=Q[E],P=new I.FieldRef(L,j),T=w[L];void 0===(k=r[P])?r[P]=new I.MatchData(g,j,T):k.add(g,j,T)}i[b]=!0}}else void 0===o[j]&&(o[j]=I.Set.empty),o[j]=o[j].union(S)}}}if(u.presence===I.Query.presence.REQUIRED)for(y=0;y<u.fields.length;y++){s[j=u.fields[y]]=s[j].intersect(c)}}var O=I.Set.complete,R=I.Set.empty;for(a=0;a<this.fields.length;a++){var j;s[j=this.fields[a]]&&(O=O.intersect(s[j])),o[j]&&(R=R.union(o[j]))}var F=Object.keys(r),C=[],_=Object.create(null);if(t.isNegated()){F=Object.keys(this.fieldVectors);for(a=0;a<F.length;a++){P=F[a];var N=I.FieldRef.fromString(P);r[P]=new I.MatchData}}for(a=0;a<F.length;a++){var D=(N=I.FieldRef.fromString(F[a])).docRef;if(O.contains(D)&&!R.contains(D)){var A,B=this.fieldVectors[N],z=n[N.fieldName].similarity(B);if(void 0!==(A=_[D]))A.score+=z,A.matchData.combine(r[N]);else{var V={ref:D,score:z,matchData:r[N]};_[D]=V,C.push(V)}}}return C.sort((function(e,t){return t.score-e.score}))},I.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map((function(e){return[e,this.invertedIndex[e]]}),this),t=Object.keys(this.fieldVectors).map((function(e){return[e,this.fieldVectors[e].toJSON()]}),this);return{version:I.version,fields:this.fields,fieldVectors:t,invertedIndex:e,pipeline:this.pipeline.toJSON()}},I.Index.load=function(e){var t={},r={},n=e.fieldVectors,i=Object.create(null),s=e.invertedIndex,o=new I.TokenSet.Builder,a=I.Pipeline.load(e.pipeline);e.version!=I.version&&I.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+I.version+"' does not match serialized index '"+e.version+"'");for(var u=0;u<n.length;u++){var l=(h=n[u])[0],c=h[1];r[l]=new I.Vector(c)}for(u=0;u<s.length;u++){var h,d=(h=s[u])[0],f=h[1];o.insert(d),i[d]=f}return o.finish(),t.fields=e.fields,t.fieldVectors=r,t.invertedIndex=i,t.tokenSet=o.root,t.pipeline=a,new I.Index(t)}
 /*!
  * lunr.Builder
- * Copyright (C) 2019 Oliver Nightingale
- */,I.Builder=function(){this._ref="id",this._fields=Object.create(null),this._documents=Object.create(null),this.invertedIndex=Object.create(null),this.fieldTermFrequencies={},this.fieldLengths={},this.tokenizer=I.tokenizer,this.pipeline=new I.Pipeline,this.searchPipeline=new I.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},I.Builder.prototype.ref=function(e){this._ref=e},I.Builder.prototype.field=function(e,t){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=t||{}},I.Builder.prototype.b=function(e){this._b=e<0?0:e>1?1:e},I.Builder.prototype.k1=function(e){this._k1=e},I.Builder.prototype.add=function(e,t){var r=e[this._ref],n=Object.keys(this._fields);this._documents[r]=t||{},this.documentCount+=1;for(var i=0;i<n.length;i++){var s=n[i],o=this._fields[s].extractor,a=o?o(e):e[s],u=this.tokenizer(a,{fields:[s]}),l=this.pipeline.run(u),c=new I.FieldRef(r,s),h=Object.create(null);this.fieldTermFrequencies[c]=h,this.fieldLengths[c]=0,this.fieldLengths[c]+=l.length;for(var d=0;d<l.length;d++){var f=l[d];if(null==h[f]&&(h[f]=0),h[f]+=1,null==this.invertedIndex[f]){var p=Object.create(null);p._index=this.termIndex,this.termIndex+=1;for(var y=0;y<n.length;y++)p[n[y]]=Object.create(null);this.invertedIndex[f]=p}null==this.invertedIndex[f][s][r]&&(this.invertedIndex[f][s][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var g=this.metadataWhitelist[m],x=f.metadata[g];null==this.invertedIndex[f][s][r][g]&&(this.invertedIndex[f][s][r][g]=[]),this.invertedIndex[f][s][r][g].push(x)}}}},I.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),t=e.length,r={},n={},i=0;i<t;i++){var s=I.FieldRef.fromString(e[i]),o=s.fieldName;n[o]||(n[o]=0),n[o]+=1,r[o]||(r[o]=0),r[o]+=this.fieldLengths[s]}var a=Object.keys(this._fields);for(i=0;i<a.length;i++){var u=a[i];r[u]=r[u]/n[u]}this.averageFieldLength=r},I.Builder.prototype.createFieldVectors=function(){for(var e={},t=Object.keys(this.fieldTermFrequencies),r=t.length,n=Object.create(null),i=0;i<r;i++){for(var s=I.FieldRef.fromString(t[i]),o=s.fieldName,a=this.fieldLengths[s],u=new I.Vector,l=this.fieldTermFrequencies[s],c=Object.keys(l),h=c.length,d=this._fields[o].boost||1,f=this._documents[s.docRef].boost||1,p=0;p<h;p++){var y,m,g,x=c[p],v=l[x],w=this.invertedIndex[x]._index;void 0===n[x]?(y=I.idf(this.invertedIndex[x],this.documentCount),n[x]=y):y=n[x],m=y*((this._k1+1)*v)/(this._k1*(1-this._b+this._b*(a/this.averageFieldLength[o]))+v),m*=d,m*=f,g=Math.round(1e3*m)/1e3,u.insert(w,g)}e[s]=u}this.fieldVectors=e},I.Builder.prototype.createTokenSet=function(){this.tokenSet=I.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},I.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new I.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},I.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},I.MatchData=function(e,t,r){for(var n=Object.create(null),i=Object.keys(r||{}),s=0;s<i.length;s++){var o=i[s];n[o]=r[o].slice()}this.metadata=Object.create(null),void 0!==e&&(this.metadata[e]=Object.create(null),this.metadata[e][t]=n)},I.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),r=0;r<t.length;r++){var n=t[r],i=Object.keys(e.metadata[n]);null==this.metadata[n]&&(this.metadata[n]=Object.create(null));for(var s=0;s<i.length;s++){var o=i[s],a=Object.keys(e.metadata[n][o]);null==this.metadata[n][o]&&(this.metadata[n][o]=Object.create(null));for(var u=0;u<a.length;u++){var l=a[u];null==this.metadata[n][o][l]?this.metadata[n][o][l]=e.metadata[n][o][l]:this.metadata[n][o][l]=this.metadata[n][o][l].concat(e.metadata[n][o][l])}}}},I.MatchData.prototype.add=function(e,t,r){if(!(e in this.metadata))return this.metadata[e]=Object.create(null),void(this.metadata[e][t]=r);if(t in this.metadata[e])for(var n=Object.keys(r),i=0;i<n.length;i++){var s=n[i];s in this.metadata[e][t]?this.metadata[e][t][s]=this.metadata[e][t][s].concat(r[s]):this.metadata[e][t][s]=r[s]}else this.metadata[e][t]=r},I.Query=function(e){this.clauses=[],this.allFields=e},I.Query.wildcard=new String("*"),I.Query.wildcard.NONE=0,I.Query.wildcard.LEADING=1,I.Query.wildcard.TRAILING=2,I.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},I.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),"wildcard"in e||(e.wildcard=I.Query.wildcard.NONE),e.wildcard&I.Query.wildcard.LEADING&&e.term.charAt(0)!=I.Query.wildcard&&(e.term="*"+e.term),e.wildcard&I.Query.wildcard.TRAILING&&e.term.slice(-1)!=I.Query.wildcard&&(e.term=e.term+"*"),"presence"in e||(e.presence=I.Query.presence.OPTIONAL),this.clauses.push(e),this},I.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=I.Query.presence.PROHIBITED)return!1;return!0},I.Query.prototype.term=function(e,t){if(Array.isArray(e))return e.forEach((function(e){this.term(e,I.utils.clone(t))}),this),this;var r=t||{};return r.term=e.toString(),this.clause(r),this},I.QueryParseError=function(e,t,r){this.name="QueryParseError",this.message=e,this.start=t,this.end=r},I.QueryParseError.prototype=new Error,I.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},I.QueryLexer.prototype.run=function(){for(var e=I.QueryLexer.lexText;e;)e=e(this)},I.QueryLexer.prototype.sliceString=function(){for(var e=[],t=this.start,r=this.pos,n=0;n<this.escapeCharPositions.length;n++)r=this.escapeCharPositions[n],e.push(this.str.slice(t,r)),t=r+1;return e.push(this.str.slice(t,this.pos)),this.escapeCharPositions.length=0,e.join("")},I.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},I.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},I.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return I.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},I.QueryLexer.prototype.width=function(){return this.pos-this.start},I.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},I.QueryLexer.prototype.backup=function(){this.pos-=1},I.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do{t=(e=this.next()).charCodeAt(0)}while(t>47&&t<58);e!=I.QueryLexer.EOS&&this.backup()},I.QueryLexer.prototype.more=function(){return this.pos<this.length},I.QueryLexer.EOS="EOS",I.QueryLexer.FIELD="FIELD",I.QueryLexer.TERM="TERM",I.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",I.QueryLexer.BOOST="BOOST",I.QueryLexer.PRESENCE="PRESENCE",I.QueryLexer.lexField=function(e){return e.backup(),e.emit(I.QueryLexer.FIELD),e.ignore(),I.QueryLexer.lexText},I.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(I.QueryLexer.TERM)),e.ignore(),e.more())return I.QueryLexer.lexText},I.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.EDIT_DISTANCE),I.QueryLexer.lexText},I.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.BOOST),I.QueryLexer.lexText},I.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(I.QueryLexer.TERM)},I.QueryLexer.termSeparator=I.tokenizer.separator,I.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==I.QueryLexer.EOS)return I.QueryLexer.lexEOS;if(92!=t.charCodeAt(0)){if(":"==t)return I.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexBoost;if("+"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if("-"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if(t.match(I.QueryLexer.termSeparator))return I.QueryLexer.lexTerm}else e.escapeCharacter()}},I.QueryParser=function(e,t){this.lexer=new I.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},I.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=I.QueryParser.parseClause;e;)e=e(this);return this.query},I.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},I.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},I.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},I.QueryParser.parseClause=function(e){var t=e.peekLexeme();if(null!=t)switch(t.type){case I.QueryLexer.PRESENCE:return I.QueryParser.parsePresence;case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+t.type;throw t.str.length>=1&&(r+=" with value '"+t.str+"'"),new I.QueryParseError(r,t.start,t.end)}},I.QueryParser.parsePresence=function(e){var t=e.consumeLexeme();if(null!=t){switch(t.str){case"-":e.currentClause.presence=I.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=I.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+t.str+"'";throw new I.QueryParseError(r,t.start,t.end)}var n=e.peekLexeme();if(null==n){r="expecting term or field, found nothing";throw new I.QueryParseError(r,t.start,t.end)}switch(n.type){case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:r="expecting term or field, found '"+n.type+"'";throw new I.QueryParseError(r,n.start,n.end)}}},I.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(null!=t){if(-1==e.query.allFields.indexOf(t.str)){var r=e.query.allFields.map((function(e){return"'"+e+"'"})).join(", "),n="unrecognised field '"+t.str+"', possible fields: "+r;throw new I.QueryParseError(n,t.start,t.end)}e.currentClause.fields=[t.str];var i=e.peekLexeme();if(null==i){n="expecting term, found nothing";throw new I.QueryParseError(n,t.start,t.end)}switch(i.type){case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:n="expecting term, found '"+i.type+"'";throw new I.QueryParseError(n,i.start,i.end)}}},I.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(null!=t){e.currentClause.term=t.str.toLowerCase(),-1!=t.str.indexOf("*")&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(null!=r)switch(r.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+r.type+"'";throw new I.QueryParseError(n,r.start,r.end)}else e.nextClause()}},I.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var n="edit distance must be numeric";throw new I.QueryParseError(n,t.start,t.end)}e.currentClause.editDistance=r;var i=e.peekLexeme();if(null!=i)switch(i.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:n="Unexpected lexeme type '"+i.type+"'";throw new I.QueryParseError(n,i.start,i.end)}else e.nextClause()}},I.QueryParser.parseBoost=function(e){var t=e.consumeLexeme();if(null!=t){var r=parseInt(t.str,10);if(isNaN(r)){var n="boost must be numeric";throw new I.QueryParseError(n,t.start,t.end)}e.currentClause.boost=r;var i=e.peekLexeme();if(null!=i)switch(i.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:n="Unexpected lexeme type '"+i.type+"'";throw new I.QueryParseError(n,i.start,i.end)}else e.nextClause()}},void 0===(i="function"==typeof(n=function(){return I})?n.call(t,r,t,e):n)||(e.exports=i)}()},function(e,t,r){"use strict";r.r(t),r.d(t,"handler",(function(){return h}));var n=function(){return(n=Object.assign||function(e){for(var t,r=1,n=arguments.length;r<n;r++)for(var i in t=arguments[r])Object.prototype.hasOwnProperty.call(t,i)&&(e[i]=t[i]);return e}).apply(this,arguments)};Object.create;function i(e){var t="function"==typeof Symbol&&Symbol.iterator,r=t&&e[t],n=0;if(r)return r.call(e);if(e&&"number"==typeof e.length)return{next:function(){return e&&n>=e.length&&(e=void 0),{value:e&&e[n++],done:!e}}};throw new TypeError(t?"Object is not iterable.":"Symbol.iterator is not defined.")}function s(e,t){var r="function"==typeof Symbol&&e[Symbol.iterator];if(!r)return e;var n,i,s=r.call(e),o=[];try{for(;(void 0===t||t-- >0)&&!(n=s.next()).done;)o.push(n.value)}catch(e){i={error:e}}finally{try{n&&!n.done&&(r=s.return)&&r.call(s)}finally{if(i)throw i.error}}return o}function o(){for(var e=[],t=0;t<arguments.length;t++)e=e.concat(s(arguments[t]));return e}Object.create;r(1);var a=r(0);var u,l,c=function(){function e(e){var t=e.config,r=e.docs,u=e.pipeline,l=e.index;this.documents=function(e){var t,r,n=new Map;try{for(var o=i(e),u=o.next();!u.done;u=o.next()){var l=u.value,c=s(l.location.split("#"),2),h=c[0],d=c[1],f=l.location,p=l.title,y=a(l.text).replace(/\s+(?=[,.:;!?])/g,"").replace(/\s+/g," ");if(d){var m=n.get(h);m.linked?n.set(f,{location:f,title:p,text:y,parent:m}):(m.title=l.title,m.text=y,m.linked=!0)}else n.set(f,{location:f,title:p,text:y,linked:!1})}}catch(e){t={error:e}}finally{try{u&&!u.done&&(r=o.return)&&r.call(o)}finally{if(t)throw t.error}}return n}(r),this.highlight=function(e){var t=new RegExp(e.separator,"img"),r=function(e,t,r){return t+"<em>"+r+"</em>"};return function(i){i=i.replace(/[\s*+-:~^]+/g," ").trim();var s=new RegExp("(^|"+e.separator+")("+i.replace(/[|\\{}()[\]^$+*?.-]/g,"\\$&").replace(t,"|")+")","img");return function(e){return n(n({},e),{title:e.title.replace(s,r),text:e.text.replace(s,r)})}}}(t),this.index=void 0===l?lunr((function(){var e,n,s,a,l,c,h;u=u||["trimmer","stopWordFilter"],1===t.lang.length&&"en"!==t.lang[0]?this.use(lunr[t.lang[0]]):t.lang.length>1&&this.use((e=lunr).multiLanguage.apply(e,o(t.lang))),this.pipeline.reset();try{for(var d=i(u),f=d.next();!f.done;f=d.next()){var p=f.value;this.pipeline.add(lunr[p])}}catch(e){n={error:e}}finally{try{f&&!f.done&&(s=d.return)&&s.call(d)}finally{if(n)throw n.error}}this.searchPipeline.reset();try{for(var y=i(u),m=y.next();!m.done;m=y.next()){p=m.value;this.searchPipeline.add(lunr[p])}}catch(e){a={error:e}}finally{try{m&&!m.done&&(l=y.return)&&l.call(y)}finally{if(a)throw a.error}}this.field("title",{boost:1e3}),this.field("text"),this.ref("location");try{for(var g=i(r),x=g.next();!x.done;x=g.next()){var v=x.value;this.add(v)}}catch(e){c={error:e}}finally{try{x&&!x.done&&(h=g.return)&&h.call(g)}finally{if(c)throw c.error}}})):lunr.Index.load("string"==typeof l?JSON.parse(l):l)}return e.prototype.query=function(e){var t=this;if(e)try{var r=this.index.search(e).reduce((function(e,r){var n=t.documents.get(r.ref);if(void 0!==n)if("parent"in n){var i=n.parent.location;e.set(i,o(e.get(i)||[],[r]))}else{i=n.location;e.set(i,e.get(i)||[])}return e}),new Map),n=this.highlight(e);return o(r).map((function(e){var r=s(e,2),i=r[0],o=r[1];return{article:n(t.documents.get(i)),sections:o.map((function(e){return n(t.documents.get(e.ref))}))}}))}catch(t){console.warn("Invalid query: "+e+" – see https://bit.ly/2s3ChXG")}return[]},e}();function h(e){switch(e.type){case u.SETUP:return function(e){var t,r,n="../lunr",s=[];try{for(var a=i(e.lang),u=a.next();!u.done;u=a.next()){var l=u.value;"ja"===l&&s.push(n+"/tinyseg.min.js"),"en"!==l&&s.push(n+"/min/lunr."+l+".min.js")}}catch(e){t={error:e}}finally{try{u&&!u.done&&(r=a.return)&&r.call(a)}finally{if(t)throw t.error}}e.lang.length>1&&s.push(n+"/min/lunr.multi.min.js"),s.length&&importScripts.apply(void 0,o([n+"/min/lunr.stemmer.support.min.js"],s))}(e.data.config),l=new c(e.data),{type:u.READY};case u.QUERY:return{type:u.RESULT,data:l?l.query(e.data):[]};default:throw new TypeError("Invalid message type")}}!function(e){e[e.SETUP=0]="SETUP",e[e.READY=1]="READY",e[e.QUERY=2]="QUERY",e[e.RESULT=3]="RESULT"}(u||(u={})),addEventListener("message",(function(e){postMessage(h(e.data))}))}]);
-//# sourceMappingURL=search.c03f0417.min.js.map
\ No newline at end of file
+ * Copyright (C) 2020 Oliver Nightingale
+ */,I.Builder=function(){this._ref="id",this._fields=Object.create(null),this._documents=Object.create(null),this.invertedIndex=Object.create(null),this.fieldTermFrequencies={},this.fieldLengths={},this.tokenizer=I.tokenizer,this.pipeline=new I.Pipeline,this.searchPipeline=new I.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},I.Builder.prototype.ref=function(e){this._ref=e},I.Builder.prototype.field=function(e,t){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=t||{}},I.Builder.prototype.b=function(e){this._b=e<0?0:e>1?1:e},I.Builder.prototype.k1=function(e){this._k1=e},I.Builder.prototype.add=function(e,t){var r=e[this._ref],n=Object.keys(this._fields);this._documents[r]=t||{},this.documentCount+=1;for(var i=0;i<n.length;i++){var s=n[i],o=this._fields[s].extractor,a=o?o(e):e[s],u=this.tokenizer(a,{fields:[s]}),l=this.pipeline.run(u),c=new I.FieldRef(r,s),h=Object.create(null);this.fieldTermFrequencies[c]=h,this.fieldLengths[c]=0,this.fieldLengths[c]+=l.length;for(var d=0;d<l.length;d++){var f=l[d];if(null==h[f]&&(h[f]=0),h[f]+=1,null==this.invertedIndex[f]){var p=Object.create(null);p._index=this.termIndex,this.termIndex+=1;for(var y=0;y<n.length;y++)p[n[y]]=Object.create(null);this.invertedIndex[f]=p}null==this.invertedIndex[f][s][r]&&(this.invertedIndex[f][s][r]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var g=this.metadataWhitelist[m],v=f.metadata[g];null==this.invertedIndex[f][s][r][g]&&(this.invertedIndex[f][s][r][g]=[]),this.invertedIndex[f][s][r][g].push(v)}}}},I.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),t=e.length,r={},n={},i=0;i<t;i++){var s=I.FieldRef.fromString(e[i]),o=s.fieldName;n[o]||(n[o]=0),n[o]+=1,r[o]||(r[o]=0),r[o]+=this.fieldLengths[s]}var a=Object.keys(this._fields);for(i=0;i<a.length;i++){var u=a[i];r[u]=r[u]/n[u]}this.averageFieldLength=r},I.Builder.prototype.createFieldVectors=function(){for(var e={},t=Object.keys(this.fieldTermFrequencies),r=t.length,n=Object.create(null),i=0;i<r;i++){for(var s=I.FieldRef.fromString(t[i]),o=s.fieldName,a=this.fieldLengths[s],u=new I.Vector,l=this.fieldTermFrequencies[s],c=Object.keys(l),h=c.length,d=this._fields[o].boost||1,f=this._documents[s.docRef].boost||1,p=0;p<h;p++){var y,m,g,v=c[p],x=l[v],w=this.invertedIndex[v]._index;void 0===n[v]?(y=I.idf(this.invertedIndex[v],this.documentCount),n[v]=y):y=n[v],m=y*((this._k1+1)*x)/(this._k1*(1-this._b+this._b*(a/this.averageFieldLength[o]))+x),m*=d,m*=f,g=Math.round(1e3*m)/1e3,u.insert(w,g)}e[s]=u}this.fieldVectors=e},I.Builder.prototype.createTokenSet=function(){this.tokenSet=I.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},I.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new I.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},I.Builder.prototype.use=function(e){var t=Array.prototype.slice.call(arguments,1);t.unshift(this),e.apply(this,t)},I.MatchData=function(e,t,r){for(var n=Object.create(null),i=Object.keys(r||{}),s=0;s<i.length;s++){var o=i[s];n[o]=r[o].slice()}this.metadata=Object.create(null),void 0!==e&&(this.metadata[e]=Object.create(null),this.metadata[e][t]=n)},I.MatchData.prototype.combine=function(e){for(var t=Object.keys(e.metadata),r=0;r<t.length;r++){var n=t[r],i=Object.keys(e.metadata[n]);null==this.metadata[n]&&(this.metadata[n]=Object.create(null));for(var s=0;s<i.length;s++){var o=i[s],a=Object.keys(e.metadata[n][o]);null==this.metadata[n][o]&&(this.metadata[n][o]=Object.create(null));for(var u=0;u<a.length;u++){var l=a[u];null==this.metadata[n][o][l]?this.metadata[n][o][l]=e.metadata[n][o][l]:this.metadata[n][o][l]=this.metadata[n][o][l].concat(e.metadata[n][o][l])}}}},I.MatchData.prototype.add=function(e,t,r){if(!(e in this.metadata))return this.metadata[e]=Object.create(null),void(this.metadata[e][t]=r);if(t in this.metadata[e])for(var n=Object.keys(r),i=0;i<n.length;i++){var s=n[i];s in this.metadata[e][t]?this.metadata[e][t][s]=this.metadata[e][t][s].concat(r[s]):this.metadata[e][t][s]=r[s]}else this.metadata[e][t]=r},I.Query=function(e){this.clauses=[],this.allFields=e},I.Query.wildcard=new String("*"),I.Query.wildcard.NONE=0,I.Query.wildcard.LEADING=1,I.Query.wildcard.TRAILING=2,I.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},I.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),"wildcard"in e||(e.wildcard=I.Query.wildcard.NONE),e.wildcard&I.Query.wildcard.LEADING&&e.term.charAt(0)!=I.Query.wildcard&&(e.term="*"+e.term),e.wildcard&I.Query.wildcard.TRAILING&&e.term.slice(-1)!=I.Query.wildcard&&(e.term=e.term+"*"),"presence"in e||(e.presence=I.Query.presence.OPTIONAL),this.clauses.push(e),this},I.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=I.Query.presence.PROHIBITED)return!1;return!0},I.Query.prototype.term=function(e,t){if(Array.isArray(e))return e.forEach((function(e){this.term(e,I.utils.clone(t))}),this),this;var r=t||{};return r.term=e.toString(),this.clause(r),this},I.QueryParseError=function(e,t,r){this.name="QueryParseError",this.message=e,this.start=t,this.end=r},I.QueryParseError.prototype=new Error,I.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},I.QueryLexer.prototype.run=function(){for(var e=I.QueryLexer.lexText;e;)e=e(this)},I.QueryLexer.prototype.sliceString=function(){for(var e=[],t=this.start,r=this.pos,n=0;n<this.escapeCharPositions.length;n++)r=this.escapeCharPositions[n],e.push(this.str.slice(t,r)),t=r+1;return e.push(this.str.slice(t,this.pos)),this.escapeCharPositions.length=0,e.join("")},I.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},I.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},I.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return I.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},I.QueryLexer.prototype.width=function(){return this.pos-this.start},I.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},I.QueryLexer.prototype.backup=function(){this.pos-=1},I.QueryLexer.prototype.acceptDigitRun=function(){var e,t;do{t=(e=this.next()).charCodeAt(0)}while(t>47&&t<58);e!=I.QueryLexer.EOS&&this.backup()},I.QueryLexer.prototype.more=function(){return this.pos<this.length},I.QueryLexer.EOS="EOS",I.QueryLexer.FIELD="FIELD",I.QueryLexer.TERM="TERM",I.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",I.QueryLexer.BOOST="BOOST",I.QueryLexer.PRESENCE="PRESENCE",I.QueryLexer.lexField=function(e){return e.backup(),e.emit(I.QueryLexer.FIELD),e.ignore(),I.QueryLexer.lexText},I.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(I.QueryLexer.TERM)),e.ignore(),e.more())return I.QueryLexer.lexText},I.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.EDIT_DISTANCE),I.QueryLexer.lexText},I.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(I.QueryLexer.BOOST),I.QueryLexer.lexText},I.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(I.QueryLexer.TERM)},I.QueryLexer.termSeparator=I.tokenizer.separator,I.QueryLexer.lexText=function(e){for(;;){var t=e.next();if(t==I.QueryLexer.EOS)return I.QueryLexer.lexEOS;if(92!=t.charCodeAt(0)){if(":"==t)return I.QueryLexer.lexField;if("~"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexEditDistance;if("^"==t)return e.backup(),e.width()>0&&e.emit(I.QueryLexer.TERM),I.QueryLexer.lexBoost;if("+"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if("-"==t&&1===e.width())return e.emit(I.QueryLexer.PRESENCE),I.QueryLexer.lexText;if(t.match(I.QueryLexer.termSeparator))return I.QueryLexer.lexTerm}else e.escapeCharacter()}},I.QueryParser=function(e,t){this.lexer=new I.QueryLexer(e),this.query=t,this.currentClause={},this.lexemeIdx=0},I.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=I.QueryParser.parseClause;e;)e=e(this);return this.query},I.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},I.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},I.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},I.QueryParser.parseClause=function(e){var t=e.peekLexeme();if(null!=t)switch(t.type){case I.QueryLexer.PRESENCE:return I.QueryParser.parsePresence;case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:var r="expected either a field or a term, found "+t.type;throw t.str.length>=1&&(r+=" with value '"+t.str+"'"),new I.QueryParseError(r,t.start,t.end)}},I.QueryParser.parsePresence=function(e){var t=e.consumeLexeme();if(null!=t){switch(t.str){case"-":e.currentClause.presence=I.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=I.Query.presence.REQUIRED;break;default:var r="unrecognised presence operator'"+t.str+"'";throw new I.QueryParseError(r,t.start,t.end)}var n=e.peekLexeme();if(null==n){r="expecting term or field, found nothing";throw new I.QueryParseError(r,t.start,t.end)}switch(n.type){case I.QueryLexer.FIELD:return I.QueryParser.parseField;case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:r="expecting term or field, found '"+n.type+"'";throw new I.QueryParseError(r,n.start,n.end)}}},I.QueryParser.parseField=function(e){var t=e.consumeLexeme();if(null!=t){if(-1==e.query.allFields.indexOf(t.str)){var r=e.query.allFields.map((function(e){return"'"+e+"'"})).join(", "),n="unrecognised field '"+t.str+"', possible fields: "+r;throw new I.QueryParseError(n,t.start,t.end)}e.currentClause.fields=[t.str];var i=e.peekLexeme();if(null==i){n="expecting term, found nothing";throw new I.QueryParseError(n,t.start,t.end)}switch(i.type){case I.QueryLexer.TERM:return I.QueryParser.parseTerm;default:n="expecting term, found '"+i.type+"'";throw new I.QueryParseError(n,i.start,i.end)}}},I.QueryParser.parseTerm=function(e){var t=e.consumeLexeme();if(null!=t){e.currentClause.term=t.str.toLowerCase(),-1!=t.str.indexOf("*")&&(e.currentClause.usePipeline=!1);var r=e.peekLexeme();if(null!=r)switch(r.type){case I.QueryLexer.TERM:return e.nextClause(),I.QueryParser.parseTerm;case I.QueryLexer.FIELD:return e.nextClause(),I.QueryParser.parseField;case I.QueryLexer.EDIT_DISTANCE:return I.QueryParser.parseEditDistance;case I.QueryLexer.BOOST:return I.QueryParser.parseBoost;case I.QueryLexer.PRESENCE:return e.nextClause(),I.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+r.type+"'";throw new I.QueryParseError(n,r.start,r.end)}else e.nextClause()}},I.QueryParser.parseEditDistance=function(e){var t=e.consumeLexeme();if(null!=t){var 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5);\n","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param  {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n  var str = '' + string;\n  var match = matchHtmlRegExp.exec(str);\n\n  if (!match) {\n    return str;\n  }\n\n  var escape;\n  var html = '';\n  var index = 0;\n  var lastIndex = 0;\n\n  for (index = match.index; index < str.length; index++) {\n    switch (str.charCodeAt(index)) {\n      case 34: // \"\n        escape = '&quot;';\n        break;\n      case 38: // &\n        escape = '&amp;';\n        break;\n      case 39: // '\n        escape = '&#39;';\n        break;\n      case 60: // <\n        escape = '&lt;';\n        break;\n      case 62: // >\n        escape = '&gt;';\n        break;\n      default:\n        continue;\n    }\n\n    if (lastIndex !== index) {\n      html += str.substring(lastIndex, index);\n    }\n\n    lastIndex = index + 1;\n    html += escape;\n  }\n\n  return lastIndex !== index\n    ? html + str.substring(lastIndex, index)\n    : html;\n}\n","var ___EXPOSE_LOADER_IMPORT___ = require(\"-!./lunr.js\");\nvar ___EXPOSE_LOADER_GET_GLOBAL_THIS___ = require(\"../expose-loader/dist/runtime/getGlobalThis.js\");\nvar ___EXPOSE_LOADER_GLOBAL_THIS___ = ___EXPOSE_LOADER_GET_GLOBAL_THIS___;\nif (typeof ___EXPOSE_LOADER_GLOBAL_THIS___[\"lunr\"] === 'undefined') ___EXPOSE_LOADER_GLOBAL_THIS___[\"lunr\"] = ___EXPOSE_LOADER_IMPORT___;\nmodule.exports = ___EXPOSE_LOADER_IMPORT___;\n","/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9\n * Copyright (C) 2020 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n *   this.field('title')\n *   this.field('body')\n *   this.ref('id')\n *\n *   documents.forEach(function (doc) {\n *     this.add(doc)\n *   }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n  var builder = new lunr.Builder\n\n  builder.pipeline.add(\n    lunr.trimmer,\n    lunr.stopWordFilter,\n    lunr.stemmer\n  )\n\n  builder.searchPipeline.add(\n    lunr.stemmer\n  )\n\n  config.call(builder, builder)\n  return builder.build()\n}\n\nlunr.version = \"2.3.9\"\n/*!\n * lunr.utils\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n  /* eslint-disable no-console */\n  return function (message) {\n    if (global.console && console.warn) {\n      console.warn(message)\n    }\n  }\n  /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n  if (obj === void 0 || obj === null) {\n    return \"\"\n  } else {\n    return obj.toString()\n  }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n  if (obj === null || obj === undefined) {\n    return obj\n  }\n\n  var clone = Object.create(null),\n      keys = Object.keys(obj)\n\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i],\n        val = obj[key]\n\n    if (Array.isArray(val)) {\n      clone[key] = val.slice()\n      continue\n    }\n\n    if (typeof val === 'string' ||\n        typeof val === 'number' ||\n        typeof val === 'boolean') {\n      clone[key] = val\n      continue\n    }\n\n    throw new TypeError(\"clone is not deep and does not support nested objects\")\n  }\n\n  return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n  this.docRef = docRef\n  this.fieldName = fieldName\n  this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n  var n = s.indexOf(lunr.FieldRef.joiner)\n\n  if (n === -1) {\n    throw \"malformed field ref string\"\n  }\n\n  var fieldRef = s.slice(0, n),\n      docRef = s.slice(n + 1)\n\n  return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n  if (this._stringValue == undefined) {\n    this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n  }\n\n  return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n  this.elements = Object.create(null)\n\n  if (elements) {\n    this.length = elements.length\n\n    for (var i = 0; i < this.length; i++) {\n      this.elements[elements[i]] = true\n    }\n  } else {\n    this.length = 0\n  }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n  intersect: function (other) {\n    return other\n  },\n\n  union: function () {\n    return this\n  },\n\n  contains: function () {\n    return true\n  }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n  intersect: function () {\n    return this\n  },\n\n  union: function (other) {\n    return other\n  },\n\n  contains: function () {\n    return false\n  }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n  return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n  var a, b, elements, intersection = []\n\n  if (other === lunr.Set.complete) {\n    return this\n  }\n\n  if (other === lunr.Set.empty) {\n    return other\n  }\n\n  if (this.length < other.length) {\n    a = this\n    b = other\n  } else {\n    a = other\n    b = this\n  }\n\n  elements = Object.keys(a.elements)\n\n  for (var i = 0; i < elements.length; i++) {\n    var element = elements[i]\n    if (element in b.elements) {\n      intersection.push(element)\n    }\n  }\n\n  return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n  if (other === lunr.Set.complete) {\n    return lunr.Set.complete\n  }\n\n  if (other === lunr.Set.empty) {\n    return this\n  }\n\n  return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n  var documentsWithTerm = 0\n\n  for (var fieldName in posting) {\n    if (fieldName == '_index') continue // Ignore the term index, its not a field\n    documentsWithTerm += Object.keys(posting[fieldName]).length\n  }\n\n  var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n  return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n  this.str = str || \"\"\n  this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n  return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n *   return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n  this.str = fn(this.str, this.metadata)\n  return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n  fn = fn || function (s) { return s }\n  return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n  if (obj == null || obj == undefined) {\n    return []\n  }\n\n  if (Array.isArray(obj)) {\n    return obj.map(function (t) {\n      return new lunr.Token(\n        lunr.utils.asString(t).toLowerCase(),\n        lunr.utils.clone(metadata)\n      )\n    })\n  }\n\n  var str = obj.toString().toLowerCase(),\n      len = str.length,\n      tokens = []\n\n  for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n    var char = str.charAt(sliceEnd),\n        sliceLength = sliceEnd - sliceStart\n\n    if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n      if (sliceLength > 0) {\n        var tokenMetadata = lunr.utils.clone(metadata) || {}\n        tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n        tokenMetadata[\"index\"] = tokens.length\n\n        tokens.push(\n          new lunr.Token (\n            str.slice(sliceStart, sliceEnd),\n            tokenMetadata\n          )\n        )\n      }\n\n      sliceStart = sliceEnd + 1\n    }\n\n  }\n\n  return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n  this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n  if (label in this.registeredFunctions) {\n    lunr.utils.warn('Overwriting existing registered function: ' + label)\n  }\n\n  fn.label = label\n  lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n  var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n  if (!isRegistered) {\n    lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n  }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n  var pipeline = new lunr.Pipeline\n\n  serialised.forEach(function (fnName) {\n    var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n    if (fn) {\n      pipeline.add(fn)\n    } else {\n      throw new Error('Cannot load unregistered function: ' + fnName)\n    }\n  })\n\n  return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n  var fns = Array.prototype.slice.call(arguments)\n\n  fns.forEach(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n    this._stack.push(fn)\n  }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  pos = pos + 1\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n  var pos = this._stack.indexOf(fn)\n  if (pos == -1) {\n    return\n  }\n\n  this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n  var stackLength = this._stack.length\n\n  for (var i = 0; i < stackLength; i++) {\n    var fn = this._stack[i]\n    var memo = []\n\n    for (var j = 0; j < tokens.length; j++) {\n      var result = fn(tokens[j], j, tokens)\n\n      if (result === null || result === void 0 || result === '') continue\n\n      if (Array.isArray(result)) {\n        for (var k = 0; k < result.length; k++) {\n          memo.push(result[k])\n        }\n      } else {\n        memo.push(result)\n      }\n    }\n\n    tokens = memo\n  }\n\n  return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n  var token = new lunr.Token (str, metadata)\n\n  return this.run([token]).map(function (t) {\n    return t.toString()\n  })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n  this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n  return this._stack.map(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n    return fn.label\n  })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n  this._magnitude = 0\n  this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n  // For an empty vector the tuple can be inserted at the beginning\n  if (this.elements.length == 0) {\n    return 0\n  }\n\n  var start = 0,\n      end = this.elements.length / 2,\n      sliceLength = end - start,\n      pivotPoint = Math.floor(sliceLength / 2),\n      pivotIndex = this.elements[pivotPoint * 2]\n\n  while (sliceLength > 1) {\n    if (pivotIndex < index) {\n      start = pivotPoint\n    }\n\n    if (pivotIndex > index) {\n      end = pivotPoint\n    }\n\n    if (pivotIndex == index) {\n      break\n    }\n\n    sliceLength = end - start\n    pivotPoint = start + Math.floor(sliceLength / 2)\n    pivotIndex = this.elements[pivotPoint * 2]\n  }\n\n  if (pivotIndex == index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex > index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex < index) {\n    return (pivotPoint + 1) * 2\n  }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n  this.upsert(insertIdx, val, function () {\n    throw \"duplicate index\"\n  })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n  this._magnitude = 0\n  var position = this.positionForIndex(insertIdx)\n\n  if (this.elements[position] == insertIdx) {\n    this.elements[position + 1] = fn(this.elements[position + 1], val)\n  } else {\n    this.elements.splice(position, 0, insertIdx, val)\n  }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n  if (this._magnitude) return this._magnitude\n\n  var sumOfSquares = 0,\n      elementsLength = this.elements.length\n\n  for (var i = 1; i < elementsLength; i += 2) {\n    var val = this.elements[i]\n    sumOfSquares += val * val\n  }\n\n  return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n  var dotProduct = 0,\n      a = this.elements, b = otherVector.elements,\n      aLen = a.length, bLen = b.length,\n      aVal = 0, bVal = 0,\n      i = 0, j = 0\n\n  while (i < aLen && j < bLen) {\n    aVal = a[i], bVal = b[j]\n    if (aVal < bVal) {\n      i += 2\n    } else if (aVal > bVal) {\n      j += 2\n    } else if (aVal == bVal) {\n      dotProduct += a[i + 1] * b[j + 1]\n      i += 2\n      j += 2\n    }\n  }\n\n  return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n  return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n  var output = new Array (this.elements.length / 2)\n\n  for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n    output[j] = this.elements[i]\n  }\n\n  return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n  return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2020 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n  var step2list = {\n      \"ational\" : \"ate\",\n      \"tional\" : \"tion\",\n      \"enci\" : \"ence\",\n      \"anci\" : \"ance\",\n      \"izer\" : \"ize\",\n      \"bli\" : \"ble\",\n      \"alli\" : \"al\",\n      \"entli\" : \"ent\",\n      \"eli\" : \"e\",\n      \"ousli\" : \"ous\",\n      \"ization\" : \"ize\",\n      \"ation\" : \"ate\",\n      \"ator\" : \"ate\",\n      \"alism\" : \"al\",\n      \"iveness\" : \"ive\",\n      \"fulness\" : \"ful\",\n      \"ousness\" : \"ous\",\n      \"aliti\" : \"al\",\n      \"iviti\" : \"ive\",\n      \"biliti\" : \"ble\",\n      \"logi\" : \"log\"\n    },\n\n    step3list = {\n      \"icate\" : \"ic\",\n      \"ative\" : \"\",\n      \"alize\" : \"al\",\n      \"iciti\" : \"ic\",\n      \"ical\" : \"ic\",\n      \"ful\" : \"\",\n      \"ness\" : \"\"\n    },\n\n    c = \"[^aeiou]\",          // consonant\n    v = \"[aeiouy]\",          // vowel\n    C = c + \"[^aeiouy]*\",    // consonant sequence\n    V = v + \"[aeiou]*\",      // vowel sequence\n\n    mgr0 = \"^(\" + C + \")?\" + V + C,               // [C]VC... is m>0\n    meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\",  // [C]VC[V] is m=1\n    mgr1 = \"^(\" + C + \")?\" + V + C + V + C,       // [C]VCVC... is m>1\n    s_v = \"^(\" + C + \")?\" + v;                   // vowel in stem\n\n  var re_mgr0 = new RegExp(mgr0);\n  var re_mgr1 = new RegExp(mgr1);\n  var re_meq1 = new RegExp(meq1);\n  var re_s_v = new RegExp(s_v);\n\n  var re_1a = /^(.+?)(ss|i)es$/;\n  var re2_1a = /^(.+?)([^s])s$/;\n  var re_1b = /^(.+?)eed$/;\n  var re2_1b = /^(.+?)(ed|ing)$/;\n  var re_1b_2 = /.$/;\n  var re2_1b_2 = /(at|bl|iz)$/;\n  var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n  var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var re_1c = /^(.+?[^aeiou])y$/;\n  var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n  var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n  var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n  var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n  var re_5 = /^(.+?)e$/;\n  var re_5_1 = /ll$/;\n  var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var porterStemmer = function porterStemmer(w) {\n    var stem,\n      suffix,\n      firstch,\n      re,\n      re2,\n      re3,\n      re4;\n\n    if (w.length < 3) { return w; }\n\n    firstch = w.substr(0,1);\n    if (firstch == \"y\") {\n      w = firstch.toUpperCase() + w.substr(1);\n    }\n\n    // Step 1a\n    re = re_1a\n    re2 = re2_1a;\n\n    if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n    else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n    // Step 1b\n    re = re_1b;\n    re2 = re2_1b;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      re = re_mgr0;\n      if (re.test(fp[1])) {\n        re = re_1b_2;\n        w = w.replace(re,\"\");\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1];\n      re2 = re_s_v;\n      if (re2.test(stem)) {\n        w = stem;\n        re2 = re2_1b_2;\n        re3 = re3_1b_2;\n        re4 = re4_1b_2;\n        if (re2.test(w)) { w = w + \"e\"; }\n        else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n        else if (re4.test(w)) { w = w + \"e\"; }\n      }\n    }\n\n    // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n    re = re_1c;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      w = stem + \"i\";\n    }\n\n    // Step 2\n    re = re_2;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step2list[suffix];\n      }\n    }\n\n    // Step 3\n    re = re_3;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step3list[suffix];\n      }\n    }\n\n    // Step 4\n    re = re_4;\n    re2 = re2_4;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      if (re.test(stem)) {\n        w = stem;\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1] + fp[2];\n      re2 = re_mgr1;\n      if (re2.test(stem)) {\n        w = stem;\n      }\n    }\n\n    // Step 5\n    re = re_5;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      re2 = re_meq1;\n      re3 = re3_5;\n      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n        w = stem;\n      }\n    }\n\n    re = re_5_1;\n    re2 = re_mgr1;\n    if (re.test(w) && re2.test(w)) {\n      re = re_1b_2;\n      w = w.replace(re,\"\");\n    }\n\n    // and turn initial Y back to y\n\n    if (firstch == \"y\") {\n      w = firstch.toLowerCase() + w.substr(1);\n    }\n\n    return w;\n  };\n\n  return function (token) {\n    return token.update(porterStemmer);\n  }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n  var words = stopWords.reduce(function (memo, stopWord) {\n    memo[stopWord] = stopWord\n    return memo\n  }, {})\n\n  return function (token) {\n    if (token && words[token.toString()] !== token.toString()) return token\n  }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n  'a',\n  'able',\n  'about',\n  'across',\n  'after',\n  'all',\n  'almost',\n  'also',\n  'am',\n  'among',\n  'an',\n  'and',\n  'any',\n  'are',\n  'as',\n  'at',\n  'be',\n  'because',\n  'been',\n  'but',\n  'by',\n  'can',\n  'cannot',\n  'could',\n  'dear',\n  'did',\n  'do',\n  'does',\n  'either',\n  'else',\n  'ever',\n  'every',\n  'for',\n  'from',\n  'get',\n  'got',\n  'had',\n  'has',\n  'have',\n  'he',\n  'her',\n  'hers',\n  'him',\n  'his',\n  'how',\n  'however',\n  'i',\n  'if',\n  'in',\n  'into',\n  'is',\n  'it',\n  'its',\n  'just',\n  'least',\n  'let',\n  'like',\n  'likely',\n  'may',\n  'me',\n  'might',\n  'most',\n  'must',\n  'my',\n  'neither',\n  'no',\n  'nor',\n  'not',\n  'of',\n  'off',\n  'often',\n  'on',\n  'only',\n  'or',\n  'other',\n  'our',\n  'own',\n  'rather',\n  'said',\n  'say',\n  'says',\n  'she',\n  'should',\n  'since',\n  'so',\n  'some',\n  'than',\n  'that',\n  'the',\n  'their',\n  'them',\n  'then',\n  'there',\n  'these',\n  'they',\n  'this',\n  'tis',\n  'to',\n  'too',\n  'twas',\n  'us',\n  'wants',\n  'was',\n  'we',\n  'were',\n  'what',\n  'when',\n  'where',\n  'which',\n  'while',\n  'who',\n  'whom',\n  'why',\n  'will',\n  'with',\n  'would',\n  'yet',\n  'you',\n  'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n  return token.update(function (s) {\n    return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n  })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n  this.final = false\n  this.edges = {}\n  this.id = lunr.TokenSet._nextId\n  lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n  var builder = new lunr.TokenSet.Builder\n\n  for (var i = 0, len = arr.length; i < len; i++) {\n    builder.insert(arr[i])\n  }\n\n  builder.finish()\n  return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n  if ('editDistance' in clause) {\n    return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n  } else {\n    return lunr.TokenSet.fromString(clause.term)\n  }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n  var root = new lunr.TokenSet\n\n  var stack = [{\n    node: root,\n    editsRemaining: editDistance,\n    str: str\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop()\n\n    // no edit\n    if (frame.str.length > 0) {\n      var char = frame.str.charAt(0),\n          noEditNode\n\n      if (char in frame.node.edges) {\n        noEditNode = frame.node.edges[char]\n      } else {\n        noEditNode = new lunr.TokenSet\n        frame.node.edges[char] = noEditNode\n      }\n\n      if (frame.str.length == 1) {\n        noEditNode.final = true\n      }\n\n      stack.push({\n        node: noEditNode,\n        editsRemaining: frame.editsRemaining,\n        str: frame.str.slice(1)\n      })\n    }\n\n    if (frame.editsRemaining == 0) {\n      continue\n    }\n\n    // insertion\n    if (\"*\" in frame.node.edges) {\n      var insertionNode = frame.node.edges[\"*\"]\n    } else {\n      var insertionNode = new lunr.TokenSet\n      frame.node.edges[\"*\"] = insertionNode\n    }\n\n    if (frame.str.length == 0) {\n      insertionNode.final = true\n    }\n\n    stack.push({\n      node: insertionNode,\n      editsRemaining: frame.editsRemaining - 1,\n      str: frame.str\n    })\n\n    // deletion\n    // can only do a deletion if we have enough edits remaining\n    // and if there are characters left to delete in the string\n    if (frame.str.length > 1) {\n      stack.push({\n        node: frame.node,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // deletion\n    // just removing the last character from the str\n    if (frame.str.length == 1) {\n      frame.node.final = true\n    }\n\n    // substitution\n    // can only do a substitution if we have enough edits remaining\n    // and if there are characters left to substitute\n    if (frame.str.length >= 1) {\n      if (\"*\" in frame.node.edges) {\n        var substitutionNode = frame.node.edges[\"*\"]\n      } else {\n        var substitutionNode = new lunr.TokenSet\n        frame.node.edges[\"*\"] = substitutionNode\n      }\n\n      if (frame.str.length == 1) {\n        substitutionNode.final = true\n      }\n\n      stack.push({\n        node: substitutionNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // transposition\n    // can only do a transposition if there are edits remaining\n    // and there are enough characters to transpose\n    if (frame.str.length > 1) {\n      var charA = frame.str.charAt(0),\n          charB = frame.str.charAt(1),\n          transposeNode\n\n      if (charB in frame.node.edges) {\n        transposeNode = frame.node.edges[charB]\n      } else {\n        transposeNode = new lunr.TokenSet\n        frame.node.edges[charB] = transposeNode\n      }\n\n      if (frame.str.length == 1) {\n        transposeNode.final = true\n      }\n\n      stack.push({\n        node: transposeNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: charA + frame.str.slice(2)\n      })\n    }\n  }\n\n  return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n  var node = new lunr.TokenSet,\n      root = node\n\n  /*\n   * Iterates through all characters within the passed string\n   * appending a node for each character.\n   *\n   * When a wildcard character is found then a self\n   * referencing edge is introduced to continually match\n   * any number of any characters.\n   */\n  for (var i = 0, len = str.length; i < len; i++) {\n    var char = str[i],\n        final = (i == len - 1)\n\n    if (char == \"*\") {\n      node.edges[char] = node\n      node.final = final\n\n    } else {\n      var next = new lunr.TokenSet\n      next.final = final\n\n      node.edges[char] = next\n      node = next\n    }\n  }\n\n  return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n  var words = []\n\n  var stack = [{\n    prefix: \"\",\n    node: this\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop(),\n        edges = Object.keys(frame.node.edges),\n        len = edges.length\n\n    if (frame.node.final) {\n      /* In Safari, at this point the prefix is sometimes corrupted, see:\n       * https://github.com/olivernn/lunr.js/issues/279 Calling any\n       * String.prototype method forces Safari to \"cast\" this string to what\n       * it's supposed to be, fixing the bug. */\n      frame.prefix.charAt(0)\n      words.push(frame.prefix)\n    }\n\n    for (var i = 0; i < len; i++) {\n      var edge = edges[i]\n\n      stack.push({\n        prefix: frame.prefix.concat(edge),\n        node: frame.node.edges[edge]\n      })\n    }\n  }\n\n  return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n  // NOTE: Using Object.keys here as this.edges is very likely\n  // to enter 'hash-mode' with many keys being added\n  //\n  // avoiding a for-in loop here as it leads to the function\n  // being de-optimised (at least in V8). From some simple\n  // benchmarks the performance is comparable, but allowing\n  // V8 to optimize may mean easy performance wins in the future.\n\n  if (this._str) {\n    return this._str\n  }\n\n  var str = this.final ? '1' : '0',\n      labels = Object.keys(this.edges).sort(),\n      len = labels.length\n\n  for (var i = 0; i < len; i++) {\n    var label = labels[i],\n        node = this.edges[label]\n\n    str = str + label + node.id\n  }\n\n  return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n  var output = new lunr.TokenSet,\n      frame = undefined\n\n  var stack = [{\n    qNode: b,\n    output: output,\n    node: this\n  }]\n\n  while (stack.length) {\n    frame = stack.pop()\n\n    // NOTE: As with the #toString method, we are using\n    // Object.keys and a for loop instead of a for-in loop\n    // as both of these objects enter 'hash' mode, causing\n    // the function to be de-optimised in V8\n    var qEdges = Object.keys(frame.qNode.edges),\n        qLen = qEdges.length,\n        nEdges = Object.keys(frame.node.edges),\n        nLen = nEdges.length\n\n    for (var q = 0; q < qLen; q++) {\n      var qEdge = qEdges[q]\n\n      for (var n = 0; n < nLen; n++) {\n        var nEdge = nEdges[n]\n\n        if (nEdge == qEdge || qEdge == '*') {\n          var node = frame.node.edges[nEdge],\n              qNode = frame.qNode.edges[qEdge],\n              final = node.final && qNode.final,\n              next = undefined\n\n          if (nEdge in frame.output.edges) {\n            // an edge already exists for this character\n            // no need to create a new node, just set the finality\n            // bit unless this node is already final\n            next = frame.output.edges[nEdge]\n            next.final = next.final || final\n\n          } else {\n            // no edge exists yet, must create one\n            // set the finality bit and insert it\n            // into the output\n            next = new lunr.TokenSet\n            next.final = final\n            frame.output.edges[nEdge] = next\n          }\n\n          stack.push({\n            qNode: qNode,\n            output: next,\n            node: node\n          })\n        }\n      }\n    }\n  }\n\n  return output\n}\nlunr.TokenSet.Builder = function () {\n  this.previousWord = \"\"\n  this.root = new lunr.TokenSet\n  this.uncheckedNodes = []\n  this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n  var node,\n      commonPrefix = 0\n\n  if (word < this.previousWord) {\n    throw new Error (\"Out of order word insertion\")\n  }\n\n  for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n    if (word[i] != this.previousWord[i]) break\n    commonPrefix++\n  }\n\n  this.minimize(commonPrefix)\n\n  if (this.uncheckedNodes.length == 0) {\n    node = this.root\n  } else {\n    node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n  }\n\n  for (var i = commonPrefix; i < word.length; i++) {\n    var nextNode = new lunr.TokenSet,\n        char = word[i]\n\n    node.edges[char] = nextNode\n\n    this.uncheckedNodes.push({\n      parent: node,\n      char: char,\n      child: nextNode\n    })\n\n    node = nextNode\n  }\n\n  node.final = true\n  this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n  this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n  for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n    var node = this.uncheckedNodes[i],\n        childKey = node.child.toString()\n\n    if (childKey in this.minimizedNodes) {\n      node.parent.edges[node.char] = this.minimizedNodes[childKey]\n    } else {\n      // Cache the key for this node since\n      // we know it can't change anymore\n      node.child._str = childKey\n\n      this.minimizedNodes[childKey] = node.child\n    }\n\n    this.uncheckedNodes.pop()\n  }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object<string, lunr.Vector>} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n  this.invertedIndex = attrs.invertedIndex\n  this.fieldVectors = attrs.fieldVectors\n  this.tokenSet = attrs.tokenSet\n  this.fields = attrs.fields\n  this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example <caption>Simple single term query</caption>\n * hello\n * @example <caption>Multiple term query</caption>\n * hello world\n * @example <caption>term scoped to a field</caption>\n * title:hello\n * @example <caption>term with a boost of 10</caption>\n * hello^10\n * @example <caption>term with an edit distance of 2</caption>\n * hello~2\n * @example <caption>terms with presence modifiers</caption>\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first.  For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n  return this.query(function (query) {\n    var parser = new lunr.QueryParser(queryString, query)\n    parser.parse()\n  })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n  // for each query clause\n  // * process terms\n  // * expand terms from token set\n  // * find matching documents and metadata\n  // * get document vectors\n  // * score documents\n\n  var query = new lunr.Query(this.fields),\n      matchingFields = Object.create(null),\n      queryVectors = Object.create(null),\n      termFieldCache = Object.create(null),\n      requiredMatches = Object.create(null),\n      prohibitedMatches = Object.create(null)\n\n  /*\n   * To support field level boosts a query vector is created per\n   * field. An empty vector is eagerly created to support negated\n   * queries.\n   */\n  for (var i = 0; i < this.fields.length; i++) {\n    queryVectors[this.fields[i]] = new lunr.Vector\n  }\n\n  fn.call(query, query)\n\n  for (var i = 0; i < query.clauses.length; i++) {\n    /*\n     * Unless the pipeline has been disabled for this term, which is\n     * the case for terms with wildcards, we need to pass the clause\n     * term through the search pipeline. A pipeline returns an array\n     * of processed terms. Pipeline functions may expand the passed\n     * term, which means we may end up performing multiple index lookups\n     * for a single query term.\n     */\n    var clause = query.clauses[i],\n        terms = null,\n        clauseMatches = lunr.Set.empty\n\n    if (clause.usePipeline) {\n      terms = this.pipeline.runString(clause.term, {\n        fields: clause.fields\n      })\n    } else {\n      terms = [clause.term]\n    }\n\n    for (var m = 0; m < terms.length; m++) {\n      var term = terms[m]\n\n      /*\n       * Each term returned from the pipeline needs to use the same query\n       * clause object, e.g. the same boost and or edit distance. The\n       * simplest way to do this is to re-use the clause object but mutate\n       * its term property.\n       */\n      clause.term = term\n\n      /*\n       * From the term in the clause we create a token set which will then\n       * be used to intersect the indexes token set to get a list of terms\n       * to lookup in the inverted index\n       */\n      var termTokenSet = lunr.TokenSet.fromClause(clause),\n          expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n      /*\n       * If a term marked as required does not exist in the tokenSet it is\n       * impossible for the search to return any matches. We set all the field\n       * scoped required matches set to empty and stop examining any further\n       * clauses.\n       */\n      if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n        for (var k = 0; k < clause.fields.length; k++) {\n          var field = clause.fields[k]\n          requiredMatches[field] = lunr.Set.empty\n        }\n\n        break\n      }\n\n      for (var j = 0; j < expandedTerms.length; j++) {\n        /*\n         * For each term get the posting and termIndex, this is required for\n         * building the query vector.\n         */\n        var expandedTerm = expandedTerms[j],\n            posting = this.invertedIndex[expandedTerm],\n            termIndex = posting._index\n\n        for (var k = 0; k < clause.fields.length; k++) {\n          /*\n           * For each field that this query term is scoped by (by default\n           * all fields are in scope) we need to get all the document refs\n           * that have this term in that field.\n           *\n           * The posting is the entry in the invertedIndex for the matching\n           * term from above.\n           */\n          var field = clause.fields[k],\n              fieldPosting = posting[field],\n              matchingDocumentRefs = Object.keys(fieldPosting),\n              termField = expandedTerm + \"/\" + field,\n              matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n          /*\n           * if the presence of this term is required ensure that the matching\n           * documents are added to the set of required matches for this clause.\n           *\n           */\n          if (clause.presence == lunr.Query.presence.REQUIRED) {\n            clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n            if (requiredMatches[field] === undefined) {\n              requiredMatches[field] = lunr.Set.complete\n            }\n          }\n\n          /*\n           * if the presence of this term is prohibited ensure that the matching\n           * documents are added to the set of prohibited matches for this field,\n           * creating that set if it does not yet exist.\n           */\n          if (clause.presence == lunr.Query.presence.PROHIBITED) {\n            if (prohibitedMatches[field] === undefined) {\n              prohibitedMatches[field] = lunr.Set.empty\n            }\n\n            prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n            /*\n             * Prohibited matches should not be part of the query vector used for\n             * similarity scoring and no metadata should be extracted so we continue\n             * to the next field\n             */\n            continue\n          }\n\n          /*\n           * The query field vector is populated using the termIndex found for\n           * the term and a unit value with the appropriate boost applied.\n           * Using upsert because there could already be an entry in the vector\n           * for the term we are working with. In that case we just add the scores\n           * together.\n           */\n          queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n          /**\n           * If we've already seen this term, field combo then we've already collected\n           * the matching documents and metadata, no need to go through all that again\n           */\n          if (termFieldCache[termField]) {\n            continue\n          }\n\n          for (var l = 0; l < matchingDocumentRefs.length; l++) {\n            /*\n             * All metadata for this term/field/document triple\n             * are then extracted and collected into an instance\n             * of lunr.MatchData ready to be returned in the query\n             * results\n             */\n            var matchingDocumentRef = matchingDocumentRefs[l],\n                matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n                metadata = fieldPosting[matchingDocumentRef],\n                fieldMatch\n\n            if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n              matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n            } else {\n              fieldMatch.add(expandedTerm, field, metadata)\n            }\n\n          }\n\n          termFieldCache[termField] = true\n        }\n      }\n    }\n\n    /**\n     * If the presence was required we need to update the requiredMatches field sets.\n     * We do this after all fields for the term have collected their matches because\n     * the clause terms presence is required in _any_ of the fields not _all_ of the\n     * fields.\n     */\n    if (clause.presence === lunr.Query.presence.REQUIRED) {\n      for (var k = 0; k < clause.fields.length; k++) {\n        var field = clause.fields[k]\n        requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n      }\n    }\n  }\n\n  /**\n   * Need to combine the field scoped required and prohibited\n   * matching documents into a global set of required and prohibited\n   * matches\n   */\n  var allRequiredMatches = lunr.Set.complete,\n      allProhibitedMatches = lunr.Set.empty\n\n  for (var i = 0; i < this.fields.length; i++) {\n    var field = this.fields[i]\n\n    if (requiredMatches[field]) {\n      allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n    }\n\n    if (prohibitedMatches[field]) {\n      allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n    }\n  }\n\n  var matchingFieldRefs = Object.keys(matchingFields),\n      results = [],\n      matches = Object.create(null)\n\n  /*\n   * If the query is negated (contains only prohibited terms)\n   * we need to get _all_ fieldRefs currently existing in the\n   * index. This is only done when we know that the query is\n   * entirely prohibited terms to avoid any cost of getting all\n   * fieldRefs unnecessarily.\n   *\n   * Additionally, blank MatchData must be created to correctly\n   * populate the results.\n   */\n  if (query.isNegated()) {\n    matchingFieldRefs = Object.keys(this.fieldVectors)\n\n    for (var i = 0; i < matchingFieldRefs.length; i++) {\n      var matchingFieldRef = matchingFieldRefs[i]\n      var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n      matchingFields[matchingFieldRef] = new lunr.MatchData\n    }\n  }\n\n  for (var i = 0; i < matchingFieldRefs.length; i++) {\n    /*\n     * Currently we have document fields that match the query, but we\n     * need to return documents. The matchData and scores are combined\n     * from multiple fields belonging to the same document.\n     *\n     * Scores are calculated by field, using the query vectors created\n     * above, and combined into a final document score using addition.\n     */\n    var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n        docRef = fieldRef.docRef\n\n    if (!allRequiredMatches.contains(docRef)) {\n      continue\n    }\n\n    if (allProhibitedMatches.contains(docRef)) {\n      continue\n    }\n\n    var fieldVector = this.fieldVectors[fieldRef],\n        score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n        docMatch\n\n    if ((docMatch = matches[docRef]) !== undefined) {\n      docMatch.score += score\n      docMatch.matchData.combine(matchingFields[fieldRef])\n    } else {\n      var match = {\n        ref: docRef,\n        score: score,\n        matchData: matchingFields[fieldRef]\n      }\n      matches[docRef] = match\n      results.push(match)\n    }\n  }\n\n  /*\n   * Sort the results objects by score, highest first.\n   */\n  return results.sort(function (a, b) {\n    return b.score - a.score\n  })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n  var invertedIndex = Object.keys(this.invertedIndex)\n    .sort()\n    .map(function (term) {\n      return [term, this.invertedIndex[term]]\n    }, this)\n\n  var fieldVectors = Object.keys(this.fieldVectors)\n    .map(function (ref) {\n      return [ref, this.fieldVectors[ref].toJSON()]\n    }, this)\n\n  return {\n    version: lunr.version,\n    fields: this.fields,\n    fieldVectors: fieldVectors,\n    invertedIndex: invertedIndex,\n    pipeline: this.pipeline.toJSON()\n  }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n  var attrs = {},\n      fieldVectors = {},\n      serializedVectors = serializedIndex.fieldVectors,\n      invertedIndex = Object.create(null),\n      serializedInvertedIndex = serializedIndex.invertedIndex,\n      tokenSetBuilder = new lunr.TokenSet.Builder,\n      pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n  if (serializedIndex.version != lunr.version) {\n    lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n  }\n\n  for (var i = 0; i < serializedVectors.length; i++) {\n    var tuple = serializedVectors[i],\n        ref = tuple[0],\n        elements = tuple[1]\n\n    fieldVectors[ref] = new lunr.Vector(elements)\n  }\n\n  for (var i = 0; i < serializedInvertedIndex.length; i++) {\n    var tuple = serializedInvertedIndex[i],\n        term = tuple[0],\n        posting = tuple[1]\n\n    tokenSetBuilder.insert(term)\n    invertedIndex[term] = posting\n  }\n\n  tokenSetBuilder.finish()\n\n  attrs.fields = serializedIndex.fields\n\n  attrs.fieldVectors = fieldVectors\n  attrs.invertedIndex = invertedIndex\n  attrs.tokenSet = tokenSetBuilder.root\n  attrs.pipeline = pipeline\n\n  return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n  this._ref = \"id\"\n  this._fields = Object.create(null)\n  this._documents = Object.create(null)\n  this.invertedIndex = Object.create(null)\n  this.fieldTermFrequencies = {}\n  this.fieldLengths = {}\n  this.tokenizer = lunr.tokenizer\n  this.pipeline = new lunr.Pipeline\n  this.searchPipeline = new lunr.Pipeline\n  this.documentCount = 0\n  this._b = 0.75\n  this._k1 = 1.2\n  this.termIndex = 0\n  this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n  this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example <caption>Extracting a nested field</caption>\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n  if (/\\//.test(fieldName)) {\n    throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n  }\n\n  this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n  if (number < 0) {\n    this._b = 0\n  } else if (number > 1) {\n    this._b = 1\n  } else {\n    this._b = number\n  }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n  this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n  var docRef = doc[this._ref],\n      fields = Object.keys(this._fields)\n\n  this._documents[docRef] = attributes || {}\n  this.documentCount += 1\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i],\n        extractor = this._fields[fieldName].extractor,\n        field = extractor ? extractor(doc) : doc[fieldName],\n        tokens = this.tokenizer(field, {\n          fields: [fieldName]\n        }),\n        terms = this.pipeline.run(tokens),\n        fieldRef = new lunr.FieldRef (docRef, fieldName),\n        fieldTerms = Object.create(null)\n\n    this.fieldTermFrequencies[fieldRef] = fieldTerms\n    this.fieldLengths[fieldRef] = 0\n\n    // store the length of this field for this document\n    this.fieldLengths[fieldRef] += terms.length\n\n    // calculate term frequencies for this field\n    for (var j = 0; j < terms.length; j++) {\n      var term = terms[j]\n\n      if (fieldTerms[term] == undefined) {\n        fieldTerms[term] = 0\n      }\n\n      fieldTerms[term] += 1\n\n      // add to inverted index\n      // create an initial posting if one doesn't exist\n      if (this.invertedIndex[term] == undefined) {\n        var posting = Object.create(null)\n        posting[\"_index\"] = this.termIndex\n        this.termIndex += 1\n\n        for (var k = 0; k < fields.length; k++) {\n          posting[fields[k]] = Object.create(null)\n        }\n\n        this.invertedIndex[term] = posting\n      }\n\n      // add an entry for this term/fieldName/docRef to the invertedIndex\n      if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n        this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n      }\n\n      // store all whitelisted metadata about this token in the\n      // inverted index\n      for (var l = 0; l < this.metadataWhitelist.length; l++) {\n        var metadataKey = this.metadataWhitelist[l],\n            metadata = term.metadata[metadataKey]\n\n        if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n          this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n        }\n\n        this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n      }\n    }\n\n  }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n  var fieldRefs = Object.keys(this.fieldLengths),\n      numberOfFields = fieldRefs.length,\n      accumulator = {},\n      documentsWithField = {}\n\n  for (var i = 0; i < numberOfFields; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        field = fieldRef.fieldName\n\n    documentsWithField[field] || (documentsWithField[field] = 0)\n    documentsWithField[field] += 1\n\n    accumulator[field] || (accumulator[field] = 0)\n    accumulator[field] += this.fieldLengths[fieldRef]\n  }\n\n  var fields = Object.keys(this._fields)\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i]\n    accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n  }\n\n  this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n  var fieldVectors = {},\n      fieldRefs = Object.keys(this.fieldTermFrequencies),\n      fieldRefsLength = fieldRefs.length,\n      termIdfCache = Object.create(null)\n\n  for (var i = 0; i < fieldRefsLength; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        fieldName = fieldRef.fieldName,\n        fieldLength = this.fieldLengths[fieldRef],\n        fieldVector = new lunr.Vector,\n        termFrequencies = this.fieldTermFrequencies[fieldRef],\n        terms = Object.keys(termFrequencies),\n        termsLength = terms.length\n\n\n    var fieldBoost = this._fields[fieldName].boost || 1,\n        docBoost = this._documents[fieldRef.docRef].boost || 1\n\n    for (var j = 0; j < termsLength; j++) {\n      var term = terms[j],\n          tf = termFrequencies[term],\n          termIndex = this.invertedIndex[term]._index,\n          idf, score, scoreWithPrecision\n\n      if (termIdfCache[term] === undefined) {\n        idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n        termIdfCache[term] = idf\n      } else {\n        idf = termIdfCache[term]\n      }\n\n      score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n      score *= fieldBoost\n      score *= docBoost\n      scoreWithPrecision = Math.round(score * 1000) / 1000\n      // Converts 1.23456789 to 1.234.\n      // Reducing the precision so that the vectors take up less\n      // space when serialised. Doing it now so that they behave\n      // the same before and after serialisation. Also, this is\n      // the fastest approach to reducing a number's precision in\n      // JavaScript.\n\n      fieldVector.insert(termIndex, scoreWithPrecision)\n    }\n\n    fieldVectors[fieldRef] = fieldVector\n  }\n\n  this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n  this.tokenSet = lunr.TokenSet.fromArray(\n    Object.keys(this.invertedIndex).sort()\n  )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n  this.calculateAverageFieldLengths()\n  this.createFieldVectors()\n  this.createTokenSet()\n\n  return new lunr.Index({\n    invertedIndex: this.invertedIndex,\n    fieldVectors: this.fieldVectors,\n    tokenSet: this.tokenSet,\n    fields: Object.keys(this._fields),\n    pipeline: this.searchPipeline\n  })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n  var args = Array.prototype.slice.call(arguments, 1)\n  args.unshift(this)\n  fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n  var clonedMetadata = Object.create(null),\n      metadataKeys = Object.keys(metadata || {})\n\n  // Cloning the metadata to prevent the original\n  // being mutated during match data combination.\n  // Metadata is kept in an array within the inverted\n  // index so cloning the data can be done with\n  // Array#slice\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n    clonedMetadata[key] = metadata[key].slice()\n  }\n\n  this.metadata = Object.create(null)\n\n  if (term !== undefined) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = clonedMetadata\n  }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n  var terms = Object.keys(otherMatchData.metadata)\n\n  for (var i = 0; i < terms.length; i++) {\n    var term = terms[i],\n        fields = Object.keys(otherMatchData.metadata[term])\n\n    if (this.metadata[term] == undefined) {\n      this.metadata[term] = Object.create(null)\n    }\n\n    for (var j = 0; j < fields.length; j++) {\n      var field = fields[j],\n          keys = Object.keys(otherMatchData.metadata[term][field])\n\n      if (this.metadata[term][field] == undefined) {\n        this.metadata[term][field] = Object.create(null)\n      }\n\n      for (var k = 0; k < keys.length; k++) {\n        var key = keys[k]\n\n        if (this.metadata[term][field][key] == undefined) {\n          this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n        } else {\n          this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n        }\n\n      }\n    }\n  }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n  if (!(term in this.metadata)) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  if (!(field in this.metadata[term])) {\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  var metadataKeys = Object.keys(metadata)\n\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n\n    if (key in this.metadata[term][field]) {\n      this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n    } else {\n      this.metadata[term][field][key] = metadata[key]\n    }\n  }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n  this.clauses = []\n  this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with trailing wildcard</caption>\n * query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })\n * @example <caption>query term with leading and trailing wildcard</caption>\n * query.term('foo', {\n *   wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with required presence</caption>\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n  /**\n   * Term's presence in a document is optional, this is the default value.\n   */\n  OPTIONAL: 1,\n\n  /**\n   * Term's presence in a document is required, documents that do not contain\n   * this term will not be returned.\n   */\n  REQUIRED: 2,\n\n  /**\n   * Term's presence in a document is prohibited, documents that do contain\n   * this term will not be returned.\n   */\n  PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n  if (!('fields' in clause)) {\n    clause.fields = this.allFields\n  }\n\n  if (!('boost' in clause)) {\n    clause.boost = 1\n  }\n\n  if (!('usePipeline' in clause)) {\n    clause.usePipeline = true\n  }\n\n  if (!('wildcard' in clause)) {\n    clause.wildcard = lunr.Query.wildcard.NONE\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n    clause.term = \"*\" + clause.term\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n    clause.term = \"\" + clause.term + \"*\"\n  }\n\n  if (!('presence' in clause)) {\n    clause.presence = lunr.Query.presence.OPTIONAL\n  }\n\n  this.clauses.push(clause)\n\n  return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n  for (var i = 0; i < this.clauses.length; i++) {\n    if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n      return false\n    }\n  }\n\n  return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example <caption>adding a single term to a query</caption>\n * query.term(\"foo\")\n * @example <caption>adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard</caption>\n * query.term(\"foo\", {\n *   fields: [\"title\"],\n *   boost: 10,\n *   wildcard: lunr.Query.wildcard.TRAILING\n * })\n * @example <caption>using lunr.tokenizer to convert a string to tokens before using them as terms</caption>\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n  if (Array.isArray(term)) {\n    term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n    return this\n  }\n\n  var clause = options || {}\n  clause.term = term.toString()\n\n  this.clause(clause)\n\n  return this\n}\nlunr.QueryParseError = function (message, start, end) {\n  this.name = \"QueryParseError\"\n  this.message = message\n  this.start = start\n  this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n  this.lexemes = []\n  this.str = str\n  this.length = str.length\n  this.pos = 0\n  this.start = 0\n  this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n  var state = lunr.QueryLexer.lexText\n\n  while (state) {\n    state = state(this)\n  }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n  var subSlices = [],\n      sliceStart = this.start,\n      sliceEnd = this.pos\n\n  for (var i = 0; i < this.escapeCharPositions.length; i++) {\n    sliceEnd = this.escapeCharPositions[i]\n    subSlices.push(this.str.slice(sliceStart, sliceEnd))\n    sliceStart = sliceEnd + 1\n  }\n\n  subSlices.push(this.str.slice(sliceStart, this.pos))\n  this.escapeCharPositions.length = 0\n\n  return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n  this.lexemes.push({\n    type: type,\n    str: this.sliceString(),\n    start: this.start,\n    end: this.pos\n  })\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n  this.escapeCharPositions.push(this.pos - 1)\n  this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n  if (this.pos >= this.length) {\n    return lunr.QueryLexer.EOS\n  }\n\n  var char = this.str.charAt(this.pos)\n  this.pos += 1\n  return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n  return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n  if (this.start == this.pos) {\n    this.pos += 1\n  }\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n  this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n  var char, charCode\n\n  do {\n    char = this.next()\n    charCode = char.charCodeAt(0)\n  } while (charCode > 47 && charCode < 58)\n\n  if (char != lunr.QueryLexer.EOS) {\n    this.backup()\n  }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n  return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n  lexer.backup()\n  lexer.emit(lunr.QueryLexer.FIELD)\n  lexer.ignore()\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n  if (lexer.width() > 1) {\n    lexer.backup()\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n\n  lexer.ignore()\n\n  if (lexer.more()) {\n    return lunr.QueryLexer.lexText\n  }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.BOOST)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n  if (lexer.width() > 0) {\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n  while (true) {\n    var char = lexer.next()\n\n    if (char == lunr.QueryLexer.EOS) {\n      return lunr.QueryLexer.lexEOS\n    }\n\n    // Escape character is '\\'\n    if (char.charCodeAt(0) == 92) {\n      lexer.escapeCharacter()\n      continue\n    }\n\n    if (char == \":\") {\n      return lunr.QueryLexer.lexField\n    }\n\n    if (char == \"~\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexEditDistance\n    }\n\n    if (char == \"^\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexBoost\n    }\n\n    // \"+\" indicates term presence is required\n    // checking for length to ensure that only\n    // leading \"+\" are considered\n    if (char == \"+\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    // \"-\" indicates term presence is prohibited\n    // checking for length to ensure that only\n    // leading \"-\" are considered\n    if (char == \"-\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    if (char.match(lunr.QueryLexer.termSeparator)) {\n      return lunr.QueryLexer.lexTerm\n    }\n  }\n}\n\nlunr.QueryParser = function (str, query) {\n  this.lexer = new lunr.QueryLexer (str)\n  this.query = query\n  this.currentClause = {}\n  this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n  this.lexer.run()\n  this.lexemes = this.lexer.lexemes\n\n  var state = lunr.QueryParser.parseClause\n\n  while (state) {\n    state = state(this)\n  }\n\n  return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n  return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n  var lexeme = this.peekLexeme()\n  this.lexemeIdx += 1\n  return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n  var completedClause = this.currentClause\n  this.query.clause(completedClause)\n  this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n  var lexeme = parser.peekLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.type) {\n    case lunr.QueryLexer.PRESENCE:\n      return lunr.QueryParser.parsePresence\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n      if (lexeme.str.length >= 1) {\n        errorMessage += \" with value '\" + lexeme.str + \"'\"\n      }\n\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.str) {\n    case \"-\":\n      parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n      break\n    case \"+\":\n      parser.currentClause.presence = lunr.Query.presence.REQUIRED\n      break\n    default:\n      var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term or field, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n    var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n        errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.fields = [lexeme.str]\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  parser.currentClause.term = lexeme.str.toLowerCase()\n\n  if (lexeme.str.indexOf(\"*\") != -1) {\n    parser.currentClause.usePipeline = false\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var editDistance = parseInt(lexeme.str, 10)\n\n  if (isNaN(editDistance)) {\n    var errorMessage = \"edit distance must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.editDistance = editDistance\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var boost = parseInt(lexeme.str, 10)\n\n  if (isNaN(boost)) {\n    var errorMessage = \"boost must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.boost = boost\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\n  /**\n   * export the module via AMD, CommonJS or as a browser global\n   * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n   */\n  ;(function (root, factory) {\n    if (typeof define === 'function' && define.amd) {\n      // AMD. Register as an anonymous module.\n      define(factory)\n    } else if (typeof exports === 'object') {\n      /**\n       * Node. Does not work with strict CommonJS, but\n       * only CommonJS-like enviroments that support module.exports,\n       * like Node.\n       */\n      module.exports = factory()\n    } else {\n      // Browser globals (root is window)\n      root.lunr = factory()\n    }\n  }(this, function () {\n    /**\n     * Just return a value to define the module export.\n     * This example returns an object, but the module\n     * can return a function as the exported value.\n     */\n    return lunr\n  }))\n})();\n","\"use strict\";\n\n// eslint-disable-next-line func-names\nmodule.exports = function () {\n  if (typeof globalThis === 'object') {\n    return globalThis;\n  }\n\n  var g;\n\n  try {\n    // This works if eval is allowed (see CSP)\n    // eslint-disable-next-line no-new-func\n    g = this || new Function('return this')();\n  } catch (e) {\n    // This works if the window reference is available\n    if (typeof window === 'object') {\n      return window;\n    } // This works if the self reference is available\n\n\n    if (typeof self === 'object') {\n      return self;\n    } // This works if the global reference is available\n\n\n    if (typeof global !== 'undefined') {\n      return global;\n    }\n  }\n\n  return g;\n}();","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n    for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  ArticleDocument,\n  SearchDocumentMap,\n  SectionDocument,\n  setupSearchDocumentMap\n} from \"../document\"\nimport {\n  SearchHighlightFactoryFn,\n  setupSearchHighlighter\n} from \"../highlighter\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n  lang: string[]                       /* Search languages */\n  separator: string                    /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n  location: string                     /* Document location */\n  title: string                        /* Document title */\n  text: string                         /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n  | \"trimmer\"                          /* Trimmer */\n  | \"stopWordFilter\"                   /* Stop word filter */\n  | \"stemmer\"                          /* Stemmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n  config: SearchIndexConfig            /* Search index configuration */\n  docs: SearchIndexDocument[]          /* Search index documents */\n  index?: object | string              /* Prebuilt or serialized index */\n  pipeline?: SearchIndexPipeline       /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n  article: ArticleDocument             /* Article document */\n  sections: SectionDocument[]          /* Section documents */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @return Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n  const [x, y] = [new Set(a), new Set(b)]\n  return [\n    ...new Set([...x].filter(value => !y.has(value)))\n  ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n  /**\n   * Search document mapping\n   *\n   * A mapping of URLs (including hash fragments) to the actual articles and\n   * sections of the documentation. The search document mapping must be created\n   * regardless of whether the index was prebuilt or not, as `lunr` itself will\n   * only store the actual index.\n   */\n  protected documents: SearchDocumentMap\n\n  /**\n   * Search highlight factory function\n   */\n  protected highlight: SearchHighlightFactoryFn\n\n  /**\n   * The `lunr` search index\n   */\n  protected index: lunr.Index\n\n  /**\n   * Create the search integration\n   *\n   * @param data - Search index\n   */\n  public constructor({ config, docs, pipeline, index }: SearchIndex) {\n    this.documents = setupSearchDocumentMap(docs)\n    this.highlight = setupSearchHighlighter(config)\n\n    /* Set separator for tokenizer */\n    lunr.tokenizer.separator = new RegExp(config.separator)\n\n    /* If no index was given, create it */\n    if (typeof index === \"undefined\") {\n      this.index = lunr(function() {\n\n        /* Set up alternate search languages */\n        if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n          this.use((lunr as any)[config.lang[0]])\n        } else if (config.lang.length > 1) {\n          this.use((lunr as any).multiLanguage(...config.lang))\n        }\n\n        /* Compute functions to be removed from the pipeline */\n        const fns = difference([\n          \"trimmer\", \"stopWordFilter\", \"stemmer\"\n        ], pipeline!)\n\n        /* Remove functions from the pipeline for every language */\n        for (const lang of config.lang.map(language => (\n          language === \"en\" ? lunr : (lunr as any)[language]\n        ))) {\n          for (const fn of fns) {\n            this.pipeline.remove(lang[fn])\n            this.searchPipeline.remove(lang[fn])\n          }\n        }\n\n        /* Set up fields and reference */\n        this.field(\"title\", { boost: 1000 })\n        this.field(\"text\")\n        this.ref(\"location\")\n\n        /* Index documents */\n        for (const doc of docs)\n          this.add(doc)\n      })\n\n    /* Prebuilt or serialized index */\n    } else {\n      this.index = lunr.Index.load(\n        typeof index === \"string\"\n          ? JSON.parse(index)\n          : index\n      )\n    }\n  }\n\n  /**\n   * Search for matching documents\n   *\n   * The search index which MkDocs provides is divided up into articles, which\n   * contain the whole content of the individual pages, and sections, which only\n   * contain the contents of the subsections obtained by breaking the individual\n   * pages up at `h1` ... `h6`. As there may be many sections on different pages\n   * with identical titles (for example within this very project, e.g. \"Usage\"\n   * or \"Installation\"), they need to be put into the context of the containing\n   * page. For this reason, section results are grouped within their respective\n   * articles which are the top-level results that are returned.\n   *\n   * @param value - Query value\n   *\n   * @return Search results\n   */\n  public query(value: string): SearchResult[] {\n    if (value) {\n      try {\n\n        /* Group sections by containing article */\n        const groups = this.index.search(value)\n          .reduce((results, result) => {\n            const document = this.documents.get(result.ref)\n            if (typeof document !== \"undefined\") {\n              if (\"parent\" in document) {\n                const ref = document.parent.location\n                results.set(ref, [...results.get(ref) || [], result])\n              } else {\n                const ref = document.location\n                results.set(ref, results.get(ref) || [])\n              }\n            }\n            return results\n          }, new Map<string, lunr.Index.Result[]>())\n\n        /* Create highlighter for query */\n        const fn = this.highlight(value)\n\n        /* Map groups to search documents */\n        return [...groups].map(([ref, sections]) => ({\n          article: fn(this.documents.get(ref) as ArticleDocument),\n          sections: sections.map(section => {\n            return fn(this.documents.get(section.ref) as SectionDocument)\n          })\n        }))\n\n      /* Log errors to console (for now) */\n      } catch (err) {\n        // tslint:disable-next-line no-console\n        console.warn(`Invalid query: ${value} – see https://bit.ly/2s3ChXG`)\n      }\n    }\n\n    /* Return nothing in case of error or empty query */\n    return []\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n  SETUP,                               /* Search index setup */\n  READY,                               /* Search index ready */\n  QUERY,                               /* Search query */\n  RESULT                               /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n  type: SearchMessageType.SETUP        /* Message type */\n  data: SearchIndex                    /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n  type: SearchMessageType.READY        /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n  type: SearchMessageType.QUERY        /* Message type */\n  data: string                         /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n  type: SearchMessageType.RESULT       /* Message type */\n  data: SearchResult[]                 /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n  | SearchSetupMessage\n  | SearchReadyMessage\n  | SearchQueryMessage\n  | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n  message: SearchMessage\n): message is SearchSetupMessage {\n  return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n  message: SearchMessage\n): message is SearchReadyMessage {\n  return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n  message: SearchMessage\n): message is SearchQueryMessage {\n  return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n  message: SearchMessage\n): message is SearchResultMessage {\n  return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"lunr\"\n\nimport { Search, SearchIndexConfig } from \"../../_\"\nimport { SearchMessage, SearchMessageType } from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nlet search: Search\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up multi-language support through `lunr-languages`\n *\n * This function will automatically import the stemmers necessary to process\n * the languages which were given through the search index configuration.\n *\n * @param config - Search index configuration\n */\nfunction setupLunrLanguages(config: SearchIndexConfig): void {\n  const base = \"../lunr\"\n\n  /* Add scripts for languages */\n  const scripts = []\n  for (const lang of config.lang) {\n    if (lang === \"ja\") scripts.push(`${base}/tinyseg.min.js`)\n    if (lang !== \"en\") scripts.push(`${base}/min/lunr.${lang}.min.js`)\n  }\n\n  /* Add multi-language support */\n  if (config.lang.length > 1)\n    scripts.push(`${base}/min/lunr.multi.min.js`)\n\n  /* Load scripts synchronously */\n  if (scripts.length)\n    importScripts(\n      `${base}/min/lunr.stemmer.support.min.js`,\n      ...scripts\n    )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Message handler\n *\n * @param message - Source message\n *\n * @return Target message\n */\nexport function handler(message: SearchMessage): SearchMessage {\n  switch (message.type) {\n\n    /* Search setup message */\n    case SearchMessageType.SETUP:\n      setupLunrLanguages(message.data.config)\n      search = new Search(message.data)\n      return {\n        type: SearchMessageType.READY\n      }\n\n    /* Search query message */\n    case SearchMessageType.QUERY:\n      return {\n        type: SearchMessageType.RESULT,\n        data: search ? search.query(message.data) : []\n      }\n\n    /* All other messages */\n    default:\n      throw new TypeError(\"Invalid message type\")\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Worker\n * ------------------------------------------------------------------------- */\n\naddEventListener(\"message\", ev => {\n  postMessage(handler(ev.data))\n})\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * A top-level article\n */\nexport interface ArticleDocument extends SearchIndexDocument {\n  linked: boolean                      /* Whether the section was linked */\n}\n\n/**\n * A section of an article\n */\nexport interface SectionDocument extends SearchIndexDocument {\n  parent: ArticleDocument              /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport type SearchDocument =\n  | ArticleDocument\n  | SectionDocument\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map<string, SearchDocument>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n  docs: SearchIndexDocument[]\n): SearchDocumentMap {\n  const documents = new Map<string, SearchDocument>()\n  for (const doc of docs) {\n    const [path, hash] = doc.location.split(\"#\")\n\n    /* Extract location and title */\n    const location = doc.location\n    const title    = doc.title\n\n    /* Escape and cleanup text */\n    const text = escapeHTML(doc.text)\n      .replace(/\\s+(?=[,.:;!?])/g, \"\")\n      .replace(/\\s+/g, \" \")\n\n    /* Handle section */\n    if (hash) {\n      const parent = documents.get(path) as ArticleDocument\n\n      /* Ignore first section, override article */\n      if (!parent.linked) {\n        parent.title  = doc.title\n        parent.text   = text\n        parent.linked = true\n\n      /* Add subsequent section */\n      } else {\n        documents.set(location, {\n          location,\n          title,\n          text,\n          parent\n        })\n      }\n\n    /* Add article */\n    } else {\n      documents.set(location, {\n        location,\n        title,\n        text,\n        linked: false\n      })\n    }\n  }\n  return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\nimport { SearchDocument } from \"../document\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @template T - Search document type\n *\n * @param document - Search document\n *\n * @return Highlighted document\n */\nexport type SearchHighlightFn = <\n  T extends SearchDocument\n>(document: Readonly<T>) => T\n\n/**\n * Search highlight factory function\n *\n * @param value - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (value: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n  config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n  const separator = new RegExp(config.separator, \"img\")\n  const highlight = (_: unknown, data: string, term: string) => {\n    return `${data}<em>${term}</em>`\n  }\n\n  /* Return factory function */\n  return (value: string) => {\n    value = value\n      .replace(/[\\s*+\\-:~^]+/g, \" \")\n      .trim()\n\n    /* Create search term match expression */\n    const match = new RegExp(`(^|${config.separator})(${\n      value\n        .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n        .replace(separator, \"|\")\n    })`, \"img\")\n\n    /* Highlight document */\n    return document => ({\n      ...document,\n      title: document.title.replace(match, highlight),\n      text:  document.text.replace(match, highlight)\n    })\n  }\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/javascripts/worker/search.c03f0417.min.js.map b/assets/javascripts/worker/search.c03f0417.min.js.map
deleted file mode 100644
index 5b76eaae7..000000000
--- a/assets/javascripts/worker/search.c03f0417.min.js.map
+++ /dev/null
@@ -1 +0,0 @@
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...}\n\nmodule.exports = g;\n","/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.8\n * Copyright (C) 2019 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n *   this.field('title')\n *   this.field('body')\n *   this.ref('id')\n *\n *   documents.forEach(function (doc) {\n *     this.add(doc)\n *   }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n  var builder = new lunr.Builder\n\n  builder.pipeline.add(\n    lunr.trimmer,\n    lunr.stopWordFilter,\n    lunr.stemmer\n  )\n\n  builder.searchPipeline.add(\n    lunr.stemmer\n  )\n\n  config.call(builder, builder)\n  return builder.build()\n}\n\nlunr.version = \"2.3.8\"\n/*!\n * lunr.utils\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n  /* eslint-disable no-console */\n  return function (message) {\n    if (global.console && console.warn) {\n      console.warn(message)\n    }\n  }\n  /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n  if (obj === void 0 || obj === null) {\n    return \"\"\n  } else {\n    return obj.toString()\n  }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n  if (obj === null || obj === undefined) {\n    return obj\n  }\n\n  var clone = Object.create(null),\n      keys = Object.keys(obj)\n\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i],\n        val = obj[key]\n\n    if (Array.isArray(val)) {\n      clone[key] = val.slice()\n      continue\n    }\n\n    if (typeof val === 'string' ||\n        typeof val === 'number' ||\n        typeof val === 'boolean') {\n      clone[key] = val\n      continue\n    }\n\n    throw new TypeError(\"clone is not deep and does not support nested objects\")\n  }\n\n  return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n  this.docRef = docRef\n  this.fieldName = fieldName\n  this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n  var n = s.indexOf(lunr.FieldRef.joiner)\n\n  if (n === -1) {\n    throw \"malformed field ref string\"\n  }\n\n  var fieldRef = s.slice(0, n),\n      docRef = s.slice(n + 1)\n\n  return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n  if (this._stringValue == undefined) {\n    this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n  }\n\n  return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n  this.elements = Object.create(null)\n\n  if (elements) {\n    this.length = elements.length\n\n    for (var i = 0; i < this.length; i++) {\n      this.elements[elements[i]] = true\n    }\n  } else {\n    this.length = 0\n  }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n  intersect: function (other) {\n    return other\n  },\n\n  union: function (other) {\n    return other\n  },\n\n  contains: function () {\n    return true\n  }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n  intersect: function () {\n    return this\n  },\n\n  union: function (other) {\n    return other\n  },\n\n  contains: function () {\n    return false\n  }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n  return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n  var a, b, elements, intersection = []\n\n  if (other === lunr.Set.complete) {\n    return this\n  }\n\n  if (other === lunr.Set.empty) {\n    return other\n  }\n\n  if (this.length < other.length) {\n    a = this\n    b = other\n  } else {\n    a = other\n    b = this\n  }\n\n  elements = Object.keys(a.elements)\n\n  for (var i = 0; i < elements.length; i++) {\n    var element = elements[i]\n    if (element in b.elements) {\n      intersection.push(element)\n    }\n  }\n\n  return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n  if (other === lunr.Set.complete) {\n    return lunr.Set.complete\n  }\n\n  if (other === lunr.Set.empty) {\n    return this\n  }\n\n  return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n  var documentsWithTerm = 0\n\n  for (var fieldName in posting) {\n    if (fieldName == '_index') continue // Ignore the term index, its not a field\n    documentsWithTerm += Object.keys(posting[fieldName]).length\n  }\n\n  var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n  return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n  this.str = str || \"\"\n  this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n  return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n *   return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n  this.str = fn(this.str, this.metadata)\n  return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n  fn = fn || function (s) { return s }\n  return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n  if (obj == null || obj == undefined) {\n    return []\n  }\n\n  if (Array.isArray(obj)) {\n    return obj.map(function (t) {\n      return new lunr.Token(\n        lunr.utils.asString(t).toLowerCase(),\n        lunr.utils.clone(metadata)\n      )\n    })\n  }\n\n  var str = obj.toString().toLowerCase(),\n      len = str.length,\n      tokens = []\n\n  for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n    var char = str.charAt(sliceEnd),\n        sliceLength = sliceEnd - sliceStart\n\n    if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n      if (sliceLength > 0) {\n        var tokenMetadata = lunr.utils.clone(metadata) || {}\n        tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n        tokenMetadata[\"index\"] = tokens.length\n\n        tokens.push(\n          new lunr.Token (\n            str.slice(sliceStart, sliceEnd),\n            tokenMetadata\n          )\n        )\n      }\n\n      sliceStart = sliceEnd + 1\n    }\n\n  }\n\n  return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n  this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n  if (label in this.registeredFunctions) {\n    lunr.utils.warn('Overwriting existing registered function: ' + label)\n  }\n\n  fn.label = label\n  lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n  var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n  if (!isRegistered) {\n    lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n  }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n  var pipeline = new lunr.Pipeline\n\n  serialised.forEach(function (fnName) {\n    var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n    if (fn) {\n      pipeline.add(fn)\n    } else {\n      throw new Error('Cannot load unregistered function: ' + fnName)\n    }\n  })\n\n  return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n  var fns = Array.prototype.slice.call(arguments)\n\n  fns.forEach(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n    this._stack.push(fn)\n  }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  pos = pos + 1\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n  var pos = this._stack.indexOf(fn)\n  if (pos == -1) {\n    return\n  }\n\n  this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n  var stackLength = this._stack.length\n\n  for (var i = 0; i < stackLength; i++) {\n    var fn = this._stack[i]\n    var memo = []\n\n    for (var j = 0; j < tokens.length; j++) {\n      var result = fn(tokens[j], j, tokens)\n\n      if (result === null || result === void 0 || result === '') continue\n\n      if (Array.isArray(result)) {\n        for (var k = 0; k < result.length; k++) {\n          memo.push(result[k])\n        }\n      } else {\n        memo.push(result)\n      }\n    }\n\n    tokens = memo\n  }\n\n  return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n  var token = new lunr.Token (str, metadata)\n\n  return this.run([token]).map(function (t) {\n    return t.toString()\n  })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n  this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n  return this._stack.map(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n    return fn.label\n  })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n  this._magnitude = 0\n  this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n  // For an empty vector the tuple can be inserted at the beginning\n  if (this.elements.length == 0) {\n    return 0\n  }\n\n  var start = 0,\n      end = this.elements.length / 2,\n      sliceLength = end - start,\n      pivotPoint = Math.floor(sliceLength / 2),\n      pivotIndex = this.elements[pivotPoint * 2]\n\n  while (sliceLength > 1) {\n    if (pivotIndex < index) {\n      start = pivotPoint\n    }\n\n    if (pivotIndex > index) {\n      end = pivotPoint\n    }\n\n    if (pivotIndex == index) {\n      break\n    }\n\n    sliceLength = end - start\n    pivotPoint = start + Math.floor(sliceLength / 2)\n    pivotIndex = this.elements[pivotPoint * 2]\n  }\n\n  if (pivotIndex == index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex > index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex < index) {\n    return (pivotPoint + 1) * 2\n  }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n  this.upsert(insertIdx, val, function () {\n    throw \"duplicate index\"\n  })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n  this._magnitude = 0\n  var position = this.positionForIndex(insertIdx)\n\n  if (this.elements[position] == insertIdx) {\n    this.elements[position + 1] = fn(this.elements[position + 1], val)\n  } else {\n    this.elements.splice(position, 0, insertIdx, val)\n  }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n  if (this._magnitude) return this._magnitude\n\n  var sumOfSquares = 0,\n      elementsLength = this.elements.length\n\n  for (var i = 1; i < elementsLength; i += 2) {\n    var val = this.elements[i]\n    sumOfSquares += val * val\n  }\n\n  return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n  var dotProduct = 0,\n      a = this.elements, b = otherVector.elements,\n      aLen = a.length, bLen = b.length,\n      aVal = 0, bVal = 0,\n      i = 0, j = 0\n\n  while (i < aLen && j < bLen) {\n    aVal = a[i], bVal = b[j]\n    if (aVal < bVal) {\n      i += 2\n    } else if (aVal > bVal) {\n      j += 2\n    } else if (aVal == bVal) {\n      dotProduct += a[i + 1] * b[j + 1]\n      i += 2\n      j += 2\n    }\n  }\n\n  return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n  return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n  var output = new Array (this.elements.length / 2)\n\n  for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n    output[j] = this.elements[i]\n  }\n\n  return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n  return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2019 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n  var step2list = {\n      \"ational\" : \"ate\",\n      \"tional\" : \"tion\",\n      \"enci\" : \"ence\",\n      \"anci\" : \"ance\",\n      \"izer\" : \"ize\",\n      \"bli\" : \"ble\",\n      \"alli\" : \"al\",\n      \"entli\" : \"ent\",\n      \"eli\" : \"e\",\n      \"ousli\" : \"ous\",\n      \"ization\" : \"ize\",\n      \"ation\" : \"ate\",\n      \"ator\" : \"ate\",\n      \"alism\" : \"al\",\n      \"iveness\" : \"ive\",\n      \"fulness\" : \"ful\",\n      \"ousness\" : \"ous\",\n      \"aliti\" : \"al\",\n      \"iviti\" : \"ive\",\n      \"biliti\" : \"ble\",\n      \"logi\" : \"log\"\n    },\n\n    step3list = {\n      \"icate\" : \"ic\",\n      \"ative\" : \"\",\n      \"alize\" : \"al\",\n      \"iciti\" : \"ic\",\n      \"ical\" : \"ic\",\n      \"ful\" : \"\",\n      \"ness\" : \"\"\n    },\n\n    c = \"[^aeiou]\",          // consonant\n    v = \"[aeiouy]\",          // vowel\n    C = c + \"[^aeiouy]*\",    // consonant sequence\n    V = v + \"[aeiou]*\",      // vowel sequence\n\n    mgr0 = \"^(\" + C + \")?\" + V + C,               // [C]VC... is m>0\n    meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\",  // [C]VC[V] is m=1\n    mgr1 = \"^(\" + C + \")?\" + V + C + V + C,       // [C]VCVC... is m>1\n    s_v = \"^(\" + C + \")?\" + v;                   // vowel in stem\n\n  var re_mgr0 = new RegExp(mgr0);\n  var re_mgr1 = new RegExp(mgr1);\n  var re_meq1 = new RegExp(meq1);\n  var re_s_v = new RegExp(s_v);\n\n  var re_1a = /^(.+?)(ss|i)es$/;\n  var re2_1a = /^(.+?)([^s])s$/;\n  var re_1b = /^(.+?)eed$/;\n  var re2_1b = /^(.+?)(ed|ing)$/;\n  var re_1b_2 = /.$/;\n  var re2_1b_2 = /(at|bl|iz)$/;\n  var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n  var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var re_1c = /^(.+?[^aeiou])y$/;\n  var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n  var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n  var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n  var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n  var re_5 = /^(.+?)e$/;\n  var re_5_1 = /ll$/;\n  var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var porterStemmer = function porterStemmer(w) {\n    var stem,\n      suffix,\n      firstch,\n      re,\n      re2,\n      re3,\n      re4;\n\n    if (w.length < 3) { return w; }\n\n    firstch = w.substr(0,1);\n    if (firstch == \"y\") {\n      w = firstch.toUpperCase() + w.substr(1);\n    }\n\n    // Step 1a\n    re = re_1a\n    re2 = re2_1a;\n\n    if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n    else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n    // Step 1b\n    re = re_1b;\n    re2 = re2_1b;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      re = re_mgr0;\n      if (re.test(fp[1])) {\n        re = re_1b_2;\n        w = w.replace(re,\"\");\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1];\n      re2 = re_s_v;\n      if (re2.test(stem)) {\n        w = stem;\n        re2 = re2_1b_2;\n        re3 = re3_1b_2;\n        re4 = re4_1b_2;\n        if (re2.test(w)) { w = w + \"e\"; }\n        else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n        else if (re4.test(w)) { w = w + \"e\"; }\n      }\n    }\n\n    // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n    re = re_1c;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      w = stem + \"i\";\n    }\n\n    // Step 2\n    re = re_2;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step2list[suffix];\n      }\n    }\n\n    // Step 3\n    re = re_3;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step3list[suffix];\n      }\n    }\n\n    // Step 4\n    re = re_4;\n    re2 = re2_4;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      if (re.test(stem)) {\n        w = stem;\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1] + fp[2];\n      re2 = re_mgr1;\n      if (re2.test(stem)) {\n        w = stem;\n      }\n    }\n\n    // Step 5\n    re = re_5;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      re2 = re_meq1;\n      re3 = re3_5;\n      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n        w = stem;\n      }\n    }\n\n    re = re_5_1;\n    re2 = re_mgr1;\n    if (re.test(w) && re2.test(w)) {\n      re = re_1b_2;\n      w = w.replace(re,\"\");\n    }\n\n    // and turn initial Y back to y\n\n    if (firstch == \"y\") {\n      w = firstch.toLowerCase() + w.substr(1);\n    }\n\n    return w;\n  };\n\n  return function (token) {\n    return token.update(porterStemmer);\n  }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n  var words = stopWords.reduce(function (memo, stopWord) {\n    memo[stopWord] = stopWord\n    return memo\n  }, {})\n\n  return function (token) {\n    if (token && words[token.toString()] !== token.toString()) return token\n  }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n  'a',\n  'able',\n  'about',\n  'across',\n  'after',\n  'all',\n  'almost',\n  'also',\n  'am',\n  'among',\n  'an',\n  'and',\n  'any',\n  'are',\n  'as',\n  'at',\n  'be',\n  'because',\n  'been',\n  'but',\n  'by',\n  'can',\n  'cannot',\n  'could',\n  'dear',\n  'did',\n  'do',\n  'does',\n  'either',\n  'else',\n  'ever',\n  'every',\n  'for',\n  'from',\n  'get',\n  'got',\n  'had',\n  'has',\n  'have',\n  'he',\n  'her',\n  'hers',\n  'him',\n  'his',\n  'how',\n  'however',\n  'i',\n  'if',\n  'in',\n  'into',\n  'is',\n  'it',\n  'its',\n  'just',\n  'least',\n  'let',\n  'like',\n  'likely',\n  'may',\n  'me',\n  'might',\n  'most',\n  'must',\n  'my',\n  'neither',\n  'no',\n  'nor',\n  'not',\n  'of',\n  'off',\n  'often',\n  'on',\n  'only',\n  'or',\n  'other',\n  'our',\n  'own',\n  'rather',\n  'said',\n  'say',\n  'says',\n  'she',\n  'should',\n  'since',\n  'so',\n  'some',\n  'than',\n  'that',\n  'the',\n  'their',\n  'them',\n  'then',\n  'there',\n  'these',\n  'they',\n  'this',\n  'tis',\n  'to',\n  'too',\n  'twas',\n  'us',\n  'wants',\n  'was',\n  'we',\n  'were',\n  'what',\n  'when',\n  'where',\n  'which',\n  'while',\n  'who',\n  'whom',\n  'why',\n  'will',\n  'with',\n  'would',\n  'yet',\n  'you',\n  'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n  return token.update(function (s) {\n    return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n  })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n  this.final = false\n  this.edges = {}\n  this.id = lunr.TokenSet._nextId\n  lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n  var builder = new lunr.TokenSet.Builder\n\n  for (var i = 0, len = arr.length; i < len; i++) {\n    builder.insert(arr[i])\n  }\n\n  builder.finish()\n  return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n  if ('editDistance' in clause) {\n    return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n  } else {\n    return lunr.TokenSet.fromString(clause.term)\n  }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n  var root = new lunr.TokenSet\n\n  var stack = [{\n    node: root,\n    editsRemaining: editDistance,\n    str: str\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop()\n\n    // no edit\n    if (frame.str.length > 0) {\n      var char = frame.str.charAt(0),\n          noEditNode\n\n      if (char in frame.node.edges) {\n        noEditNode = frame.node.edges[char]\n      } else {\n        noEditNode = new lunr.TokenSet\n        frame.node.edges[char] = noEditNode\n      }\n\n      if (frame.str.length == 1) {\n        noEditNode.final = true\n      }\n\n      stack.push({\n        node: noEditNode,\n        editsRemaining: frame.editsRemaining,\n        str: frame.str.slice(1)\n      })\n    }\n\n    if (frame.editsRemaining == 0) {\n      continue\n    }\n\n    // insertion\n    if (\"*\" in frame.node.edges) {\n      var insertionNode = frame.node.edges[\"*\"]\n    } else {\n      var insertionNode = new lunr.TokenSet\n      frame.node.edges[\"*\"] = insertionNode\n    }\n\n    if (frame.str.length == 0) {\n      insertionNode.final = true\n    }\n\n    stack.push({\n      node: insertionNode,\n      editsRemaining: frame.editsRemaining - 1,\n      str: frame.str\n    })\n\n    // deletion\n    // can only do a deletion if we have enough edits remaining\n    // and if there are characters left to delete in the string\n    if (frame.str.length > 1) {\n      stack.push({\n        node: frame.node,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // deletion\n    // just removing the last character from the str\n    if (frame.str.length == 1) {\n      frame.node.final = true\n    }\n\n    // substitution\n    // can only do a substitution if we have enough edits remaining\n    // and if there are characters left to substitute\n    if (frame.str.length >= 1) {\n      if (\"*\" in frame.node.edges) {\n        var substitutionNode = frame.node.edges[\"*\"]\n      } else {\n        var substitutionNode = new lunr.TokenSet\n        frame.node.edges[\"*\"] = substitutionNode\n      }\n\n      if (frame.str.length == 1) {\n        substitutionNode.final = true\n      }\n\n      stack.push({\n        node: substitutionNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // transposition\n    // can only do a transposition if there are edits remaining\n    // and there are enough characters to transpose\n    if (frame.str.length > 1) {\n      var charA = frame.str.charAt(0),\n          charB = frame.str.charAt(1),\n          transposeNode\n\n      if (charB in frame.node.edges) {\n        transposeNode = frame.node.edges[charB]\n      } else {\n        transposeNode = new lunr.TokenSet\n        frame.node.edges[charB] = transposeNode\n      }\n\n      if (frame.str.length == 1) {\n        transposeNode.final = true\n      }\n\n      stack.push({\n        node: transposeNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: charA + frame.str.slice(2)\n      })\n    }\n  }\n\n  return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n  var node = new lunr.TokenSet,\n      root = node\n\n  /*\n   * Iterates through all characters within the passed string\n   * appending a node for each character.\n   *\n   * When a wildcard character is found then a self\n   * referencing edge is introduced to continually match\n   * any number of any characters.\n   */\n  for (var i = 0, len = str.length; i < len; i++) {\n    var char = str[i],\n        final = (i == len - 1)\n\n    if (char == \"*\") {\n      node.edges[char] = node\n      node.final = final\n\n    } else {\n      var next = new lunr.TokenSet\n      next.final = final\n\n      node.edges[char] = next\n      node = next\n    }\n  }\n\n  return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n  var words = []\n\n  var stack = [{\n    prefix: \"\",\n    node: this\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop(),\n        edges = Object.keys(frame.node.edges),\n        len = edges.length\n\n    if (frame.node.final) {\n      /* In Safari, at this point the prefix is sometimes corrupted, see:\n       * https://github.com/olivernn/lunr.js/issues/279 Calling any\n       * String.prototype method forces Safari to \"cast\" this string to what\n       * it's supposed to be, fixing the bug. */\n      frame.prefix.charAt(0)\n      words.push(frame.prefix)\n    }\n\n    for (var i = 0; i < len; i++) {\n      var edge = edges[i]\n\n      stack.push({\n        prefix: frame.prefix.concat(edge),\n        node: frame.node.edges[edge]\n      })\n    }\n  }\n\n  return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n  // NOTE: Using Object.keys here as this.edges is very likely\n  // to enter 'hash-mode' with many keys being added\n  //\n  // avoiding a for-in loop here as it leads to the function\n  // being de-optimised (at least in V8). From some simple\n  // benchmarks the performance is comparable, but allowing\n  // V8 to optimize may mean easy performance wins in the future.\n\n  if (this._str) {\n    return this._str\n  }\n\n  var str = this.final ? '1' : '0',\n      labels = Object.keys(this.edges).sort(),\n      len = labels.length\n\n  for (var i = 0; i < len; i++) {\n    var label = labels[i],\n        node = this.edges[label]\n\n    str = str + label + node.id\n  }\n\n  return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n  var output = new lunr.TokenSet,\n      frame = undefined\n\n  var stack = [{\n    qNode: b,\n    output: output,\n    node: this\n  }]\n\n  while (stack.length) {\n    frame = stack.pop()\n\n    // NOTE: As with the #toString method, we are using\n    // Object.keys and a for loop instead of a for-in loop\n    // as both of these objects enter 'hash' mode, causing\n    // the function to be de-optimised in V8\n    var qEdges = Object.keys(frame.qNode.edges),\n        qLen = qEdges.length,\n        nEdges = Object.keys(frame.node.edges),\n        nLen = nEdges.length\n\n    for (var q = 0; q < qLen; q++) {\n      var qEdge = qEdges[q]\n\n      for (var n = 0; n < nLen; n++) {\n        var nEdge = nEdges[n]\n\n        if (nEdge == qEdge || qEdge == '*') {\n          var node = frame.node.edges[nEdge],\n              qNode = frame.qNode.edges[qEdge],\n              final = node.final && qNode.final,\n              next = undefined\n\n          if (nEdge in frame.output.edges) {\n            // an edge already exists for this character\n            // no need to create a new node, just set the finality\n            // bit unless this node is already final\n            next = frame.output.edges[nEdge]\n            next.final = next.final || final\n\n          } else {\n            // no edge exists yet, must create one\n            // set the finality bit and insert it\n            // into the output\n            next = new lunr.TokenSet\n            next.final = final\n            frame.output.edges[nEdge] = next\n          }\n\n          stack.push({\n            qNode: qNode,\n            output: next,\n            node: node\n          })\n        }\n      }\n    }\n  }\n\n  return output\n}\nlunr.TokenSet.Builder = function () {\n  this.previousWord = \"\"\n  this.root = new lunr.TokenSet\n  this.uncheckedNodes = []\n  this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n  var node,\n      commonPrefix = 0\n\n  if (word < this.previousWord) {\n    throw new Error (\"Out of order word insertion\")\n  }\n\n  for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n    if (word[i] != this.previousWord[i]) break\n    commonPrefix++\n  }\n\n  this.minimize(commonPrefix)\n\n  if (this.uncheckedNodes.length == 0) {\n    node = this.root\n  } else {\n    node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n  }\n\n  for (var i = commonPrefix; i < word.length; i++) {\n    var nextNode = new lunr.TokenSet,\n        char = word[i]\n\n    node.edges[char] = nextNode\n\n    this.uncheckedNodes.push({\n      parent: node,\n      char: char,\n      child: nextNode\n    })\n\n    node = nextNode\n  }\n\n  node.final = true\n  this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n  this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n  for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n    var node = this.uncheckedNodes[i],\n        childKey = node.child.toString()\n\n    if (childKey in this.minimizedNodes) {\n      node.parent.edges[node.char] = this.minimizedNodes[childKey]\n    } else {\n      // Cache the key for this node since\n      // we know it can't change anymore\n      node.child._str = childKey\n\n      this.minimizedNodes[childKey] = node.child\n    }\n\n    this.uncheckedNodes.pop()\n  }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object<string, lunr.Vector>} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n  this.invertedIndex = attrs.invertedIndex\n  this.fieldVectors = attrs.fieldVectors\n  this.tokenSet = attrs.tokenSet\n  this.fields = attrs.fields\n  this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example <caption>Simple single term query</caption>\n * hello\n * @example <caption>Multiple term query</caption>\n * hello world\n * @example <caption>term scoped to a field</caption>\n * title:hello\n * @example <caption>term with a boost of 10</caption>\n * hello^10\n * @example <caption>term with an edit distance of 2</caption>\n * hello~2\n * @example <caption>terms with presence modifiers</caption>\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first.  For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n  return this.query(function (query) {\n    var parser = new lunr.QueryParser(queryString, query)\n    parser.parse()\n  })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n  // for each query clause\n  // * process terms\n  // * expand terms from token set\n  // * find matching documents and metadata\n  // * get document vectors\n  // * score documents\n\n  var query = new lunr.Query(this.fields),\n      matchingFields = Object.create(null),\n      queryVectors = Object.create(null),\n      termFieldCache = Object.create(null),\n      requiredMatches = Object.create(null),\n      prohibitedMatches = Object.create(null)\n\n  /*\n   * To support field level boosts a query vector is created per\n   * field. An empty vector is eagerly created to support negated\n   * queries.\n   */\n  for (var i = 0; i < this.fields.length; i++) {\n    queryVectors[this.fields[i]] = new lunr.Vector\n  }\n\n  fn.call(query, query)\n\n  for (var i = 0; i < query.clauses.length; i++) {\n    /*\n     * Unless the pipeline has been disabled for this term, which is\n     * the case for terms with wildcards, we need to pass the clause\n     * term through the search pipeline. A pipeline returns an array\n     * of processed terms. Pipeline functions may expand the passed\n     * term, which means we may end up performing multiple index lookups\n     * for a single query term.\n     */\n    var clause = query.clauses[i],\n        terms = null,\n        clauseMatches = lunr.Set.complete\n\n    if (clause.usePipeline) {\n      terms = this.pipeline.runString(clause.term, {\n        fields: clause.fields\n      })\n    } else {\n      terms = [clause.term]\n    }\n\n    for (var m = 0; m < terms.length; m++) {\n      var term = terms[m]\n\n      /*\n       * Each term returned from the pipeline needs to use the same query\n       * clause object, e.g. the same boost and or edit distance. The\n       * simplest way to do this is to re-use the clause object but mutate\n       * its term property.\n       */\n      clause.term = term\n\n      /*\n       * From the term in the clause we create a token set which will then\n       * be used to intersect the indexes token set to get a list of terms\n       * to lookup in the inverted index\n       */\n      var termTokenSet = lunr.TokenSet.fromClause(clause),\n          expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n      /*\n       * If a term marked as required does not exist in the tokenSet it is\n       * impossible for the search to return any matches. We set all the field\n       * scoped required matches set to empty and stop examining any further\n       * clauses.\n       */\n      if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n        for (var k = 0; k < clause.fields.length; k++) {\n          var field = clause.fields[k]\n          requiredMatches[field] = lunr.Set.empty\n        }\n\n        break\n      }\n\n      for (var j = 0; j < expandedTerms.length; j++) {\n        /*\n         * For each term get the posting and termIndex, this is required for\n         * building the query vector.\n         */\n        var expandedTerm = expandedTerms[j],\n            posting = this.invertedIndex[expandedTerm],\n            termIndex = posting._index\n\n        for (var k = 0; k < clause.fields.length; k++) {\n          /*\n           * For each field that this query term is scoped by (by default\n           * all fields are in scope) we need to get all the document refs\n           * that have this term in that field.\n           *\n           * The posting is the entry in the invertedIndex for the matching\n           * term from above.\n           */\n          var field = clause.fields[k],\n              fieldPosting = posting[field],\n              matchingDocumentRefs = Object.keys(fieldPosting),\n              termField = expandedTerm + \"/\" + field,\n              matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n          /*\n           * if the presence of this term is required ensure that the matching\n           * documents are added to the set of required matches for this clause.\n           *\n           */\n          if (clause.presence == lunr.Query.presence.REQUIRED) {\n            clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n            if (requiredMatches[field] === undefined) {\n              requiredMatches[field] = lunr.Set.complete\n            }\n          }\n\n          /*\n           * if the presence of this term is prohibited ensure that the matching\n           * documents are added to the set of prohibited matches for this field,\n           * creating that set if it does not yet exist.\n           */\n          if (clause.presence == lunr.Query.presence.PROHIBITED) {\n            if (prohibitedMatches[field] === undefined) {\n              prohibitedMatches[field] = lunr.Set.empty\n            }\n\n            prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n            /*\n             * Prohibited matches should not be part of the query vector used for\n             * similarity scoring and no metadata should be extracted so we continue\n             * to the next field\n             */\n            continue\n          }\n\n          /*\n           * The query field vector is populated using the termIndex found for\n           * the term and a unit value with the appropriate boost applied.\n           * Using upsert because there could already be an entry in the vector\n           * for the term we are working with. In that case we just add the scores\n           * together.\n           */\n          queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n          /**\n           * If we've already seen this term, field combo then we've already collected\n           * the matching documents and metadata, no need to go through all that again\n           */\n          if (termFieldCache[termField]) {\n            continue\n          }\n\n          for (var l = 0; l < matchingDocumentRefs.length; l++) {\n            /*\n             * All metadata for this term/field/document triple\n             * are then extracted and collected into an instance\n             * of lunr.MatchData ready to be returned in the query\n             * results\n             */\n            var matchingDocumentRef = matchingDocumentRefs[l],\n                matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n                metadata = fieldPosting[matchingDocumentRef],\n                fieldMatch\n\n            if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n              matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n            } else {\n              fieldMatch.add(expandedTerm, field, metadata)\n            }\n\n          }\n\n          termFieldCache[termField] = true\n        }\n      }\n    }\n\n    /**\n     * If the presence was required we need to update the requiredMatches field sets.\n     * We do this after all fields for the term have collected their matches because\n     * the clause terms presence is required in _any_ of the fields not _all_ of the\n     * fields.\n     */\n    if (clause.presence === lunr.Query.presence.REQUIRED) {\n      for (var k = 0; k < clause.fields.length; k++) {\n        var field = clause.fields[k]\n        requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n      }\n    }\n  }\n\n  /**\n   * Need to combine the field scoped required and prohibited\n   * matching documents into a global set of required and prohibited\n   * matches\n   */\n  var allRequiredMatches = lunr.Set.complete,\n      allProhibitedMatches = lunr.Set.empty\n\n  for (var i = 0; i < this.fields.length; i++) {\n    var field = this.fields[i]\n\n    if (requiredMatches[field]) {\n      allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n    }\n\n    if (prohibitedMatches[field]) {\n      allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n    }\n  }\n\n  var matchingFieldRefs = Object.keys(matchingFields),\n      results = [],\n      matches = Object.create(null)\n\n  /*\n   * If the query is negated (contains only prohibited terms)\n   * we need to get _all_ fieldRefs currently existing in the\n   * index. This is only done when we know that the query is\n   * entirely prohibited terms to avoid any cost of getting all\n   * fieldRefs unnecessarily.\n   *\n   * Additionally, blank MatchData must be created to correctly\n   * populate the results.\n   */\n  if (query.isNegated()) {\n    matchingFieldRefs = Object.keys(this.fieldVectors)\n\n    for (var i = 0; i < matchingFieldRefs.length; i++) {\n      var matchingFieldRef = matchingFieldRefs[i]\n      var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n      matchingFields[matchingFieldRef] = new lunr.MatchData\n    }\n  }\n\n  for (var i = 0; i < matchingFieldRefs.length; i++) {\n    /*\n     * Currently we have document fields that match the query, but we\n     * need to return documents. The matchData and scores are combined\n     * from multiple fields belonging to the same document.\n     *\n     * Scores are calculated by field, using the query vectors created\n     * above, and combined into a final document score using addition.\n     */\n    var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n        docRef = fieldRef.docRef\n\n    if (!allRequiredMatches.contains(docRef)) {\n      continue\n    }\n\n    if (allProhibitedMatches.contains(docRef)) {\n      continue\n    }\n\n    var fieldVector = this.fieldVectors[fieldRef],\n        score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n        docMatch\n\n    if ((docMatch = matches[docRef]) !== undefined) {\n      docMatch.score += score\n      docMatch.matchData.combine(matchingFields[fieldRef])\n    } else {\n      var match = {\n        ref: docRef,\n        score: score,\n        matchData: matchingFields[fieldRef]\n      }\n      matches[docRef] = match\n      results.push(match)\n    }\n  }\n\n  /*\n   * Sort the results objects by score, highest first.\n   */\n  return results.sort(function (a, b) {\n    return b.score - a.score\n  })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n  var invertedIndex = Object.keys(this.invertedIndex)\n    .sort()\n    .map(function (term) {\n      return [term, this.invertedIndex[term]]\n    }, this)\n\n  var fieldVectors = Object.keys(this.fieldVectors)\n    .map(function (ref) {\n      return [ref, this.fieldVectors[ref].toJSON()]\n    }, this)\n\n  return {\n    version: lunr.version,\n    fields: this.fields,\n    fieldVectors: fieldVectors,\n    invertedIndex: invertedIndex,\n    pipeline: this.pipeline.toJSON()\n  }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n  var attrs = {},\n      fieldVectors = {},\n      serializedVectors = serializedIndex.fieldVectors,\n      invertedIndex = Object.create(null),\n      serializedInvertedIndex = serializedIndex.invertedIndex,\n      tokenSetBuilder = new lunr.TokenSet.Builder,\n      pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n  if (serializedIndex.version != lunr.version) {\n    lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n  }\n\n  for (var i = 0; i < serializedVectors.length; i++) {\n    var tuple = serializedVectors[i],\n        ref = tuple[0],\n        elements = tuple[1]\n\n    fieldVectors[ref] = new lunr.Vector(elements)\n  }\n\n  for (var i = 0; i < serializedInvertedIndex.length; i++) {\n    var tuple = serializedInvertedIndex[i],\n        term = tuple[0],\n        posting = tuple[1]\n\n    tokenSetBuilder.insert(term)\n    invertedIndex[term] = posting\n  }\n\n  tokenSetBuilder.finish()\n\n  attrs.fields = serializedIndex.fields\n\n  attrs.fieldVectors = fieldVectors\n  attrs.invertedIndex = invertedIndex\n  attrs.tokenSet = tokenSetBuilder.root\n  attrs.pipeline = pipeline\n\n  return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2019 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n  this._ref = \"id\"\n  this._fields = Object.create(null)\n  this._documents = Object.create(null)\n  this.invertedIndex = Object.create(null)\n  this.fieldTermFrequencies = {}\n  this.fieldLengths = {}\n  this.tokenizer = lunr.tokenizer\n  this.pipeline = new lunr.Pipeline\n  this.searchPipeline = new lunr.Pipeline\n  this.documentCount = 0\n  this._b = 0.75\n  this._k1 = 1.2\n  this.termIndex = 0\n  this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n  this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example <caption>Extracting a nested field</caption>\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n  if (/\\//.test(fieldName)) {\n    throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n  }\n\n  this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n  if (number < 0) {\n    this._b = 0\n  } else if (number > 1) {\n    this._b = 1\n  } else {\n    this._b = number\n  }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n  this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n  var docRef = doc[this._ref],\n      fields = Object.keys(this._fields)\n\n  this._documents[docRef] = attributes || {}\n  this.documentCount += 1\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i],\n        extractor = this._fields[fieldName].extractor,\n        field = extractor ? extractor(doc) : doc[fieldName],\n        tokens = this.tokenizer(field, {\n          fields: [fieldName]\n        }),\n        terms = this.pipeline.run(tokens),\n        fieldRef = new lunr.FieldRef (docRef, fieldName),\n        fieldTerms = Object.create(null)\n\n    this.fieldTermFrequencies[fieldRef] = fieldTerms\n    this.fieldLengths[fieldRef] = 0\n\n    // store the length of this field for this document\n    this.fieldLengths[fieldRef] += terms.length\n\n    // calculate term frequencies for this field\n    for (var j = 0; j < terms.length; j++) {\n      var term = terms[j]\n\n      if (fieldTerms[term] == undefined) {\n        fieldTerms[term] = 0\n      }\n\n      fieldTerms[term] += 1\n\n      // add to inverted index\n      // create an initial posting if one doesn't exist\n      if (this.invertedIndex[term] == undefined) {\n        var posting = Object.create(null)\n        posting[\"_index\"] = this.termIndex\n        this.termIndex += 1\n\n        for (var k = 0; k < fields.length; k++) {\n          posting[fields[k]] = Object.create(null)\n        }\n\n        this.invertedIndex[term] = posting\n      }\n\n      // add an entry for this term/fieldName/docRef to the invertedIndex\n      if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n        this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n      }\n\n      // store all whitelisted metadata about this token in the\n      // inverted index\n      for (var l = 0; l < this.metadataWhitelist.length; l++) {\n        var metadataKey = this.metadataWhitelist[l],\n            metadata = term.metadata[metadataKey]\n\n        if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n          this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n        }\n\n        this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n      }\n    }\n\n  }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n  var fieldRefs = Object.keys(this.fieldLengths),\n      numberOfFields = fieldRefs.length,\n      accumulator = {},\n      documentsWithField = {}\n\n  for (var i = 0; i < numberOfFields; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        field = fieldRef.fieldName\n\n    documentsWithField[field] || (documentsWithField[field] = 0)\n    documentsWithField[field] += 1\n\n    accumulator[field] || (accumulator[field] = 0)\n    accumulator[field] += this.fieldLengths[fieldRef]\n  }\n\n  var fields = Object.keys(this._fields)\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i]\n    accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n  }\n\n  this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n  var fieldVectors = {},\n      fieldRefs = Object.keys(this.fieldTermFrequencies),\n      fieldRefsLength = fieldRefs.length,\n      termIdfCache = Object.create(null)\n\n  for (var i = 0; i < fieldRefsLength; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        fieldName = fieldRef.fieldName,\n        fieldLength = this.fieldLengths[fieldRef],\n        fieldVector = new lunr.Vector,\n        termFrequencies = this.fieldTermFrequencies[fieldRef],\n        terms = Object.keys(termFrequencies),\n        termsLength = terms.length\n\n\n    var fieldBoost = this._fields[fieldName].boost || 1,\n        docBoost = this._documents[fieldRef.docRef].boost || 1\n\n    for (var j = 0; j < termsLength; j++) {\n      var term = terms[j],\n          tf = termFrequencies[term],\n          termIndex = this.invertedIndex[term]._index,\n          idf, score, scoreWithPrecision\n\n      if (termIdfCache[term] === undefined) {\n        idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n        termIdfCache[term] = idf\n      } else {\n        idf = termIdfCache[term]\n      }\n\n      score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n      score *= fieldBoost\n      score *= docBoost\n      scoreWithPrecision = Math.round(score * 1000) / 1000\n      // Converts 1.23456789 to 1.234.\n      // Reducing the precision so that the vectors take up less\n      // space when serialised. Doing it now so that they behave\n      // the same before and after serialisation. Also, this is\n      // the fastest approach to reducing a number's precision in\n      // JavaScript.\n\n      fieldVector.insert(termIndex, scoreWithPrecision)\n    }\n\n    fieldVectors[fieldRef] = fieldVector\n  }\n\n  this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n  this.tokenSet = lunr.TokenSet.fromArray(\n    Object.keys(this.invertedIndex).sort()\n  )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n  this.calculateAverageFieldLengths()\n  this.createFieldVectors()\n  this.createTokenSet()\n\n  return new lunr.Index({\n    invertedIndex: this.invertedIndex,\n    fieldVectors: this.fieldVectors,\n    tokenSet: this.tokenSet,\n    fields: Object.keys(this._fields),\n    pipeline: this.searchPipeline\n  })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n  var args = Array.prototype.slice.call(arguments, 1)\n  args.unshift(this)\n  fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n  var clonedMetadata = Object.create(null),\n      metadataKeys = Object.keys(metadata || {})\n\n  // Cloning the metadata to prevent the original\n  // being mutated during match data combination.\n  // Metadata is kept in an array within the inverted\n  // index so cloning the data can be done with\n  // Array#slice\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n    clonedMetadata[key] = metadata[key].slice()\n  }\n\n  this.metadata = Object.create(null)\n\n  if (term !== undefined) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = clonedMetadata\n  }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n  var terms = Object.keys(otherMatchData.metadata)\n\n  for (var i = 0; i < terms.length; i++) {\n    var term = terms[i],\n        fields = Object.keys(otherMatchData.metadata[term])\n\n    if (this.metadata[term] == undefined) {\n      this.metadata[term] = Object.create(null)\n    }\n\n    for (var j = 0; j < fields.length; j++) {\n      var field = fields[j],\n          keys = Object.keys(otherMatchData.metadata[term][field])\n\n      if (this.metadata[term][field] == undefined) {\n        this.metadata[term][field] = Object.create(null)\n      }\n\n      for (var k = 0; k < keys.length; k++) {\n        var key = keys[k]\n\n        if (this.metadata[term][field][key] == undefined) {\n          this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n        } else {\n          this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n        }\n\n      }\n    }\n  }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n  if (!(term in this.metadata)) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  if (!(field in this.metadata[term])) {\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  var metadataKeys = Object.keys(metadata)\n\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n\n    if (key in this.metadata[term][field]) {\n      this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n    } else {\n      this.metadata[term][field][key] = metadata[key]\n    }\n  }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n  this.clauses = []\n  this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with trailing wildcard</caption>\n * query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })\n * @example <caption>query term with leading and trailing wildcard</caption>\n * query.term('foo', {\n *   wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with required presence</caption>\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n  /**\n   * Term's presence in a document is optional, this is the default value.\n   */\n  OPTIONAL: 1,\n\n  /**\n   * Term's presence in a document is required, documents that do not contain\n   * this term will not be returned.\n   */\n  REQUIRED: 2,\n\n  /**\n   * Term's presence in a document is prohibited, documents that do contain\n   * this term will not be returned.\n   */\n  PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n  if (!('fields' in clause)) {\n    clause.fields = this.allFields\n  }\n\n  if (!('boost' in clause)) {\n    clause.boost = 1\n  }\n\n  if (!('usePipeline' in clause)) {\n    clause.usePipeline = true\n  }\n\n  if (!('wildcard' in clause)) {\n    clause.wildcard = lunr.Query.wildcard.NONE\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n    clause.term = \"*\" + clause.term\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n    clause.term = \"\" + clause.term + \"*\"\n  }\n\n  if (!('presence' in clause)) {\n    clause.presence = lunr.Query.presence.OPTIONAL\n  }\n\n  this.clauses.push(clause)\n\n  return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n  for (var i = 0; i < this.clauses.length; i++) {\n    if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n      return false\n    }\n  }\n\n  return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example <caption>adding a single term to a query</caption>\n * query.term(\"foo\")\n * @example <caption>adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard</caption>\n * query.term(\"foo\", {\n *   fields: [\"title\"],\n *   boost: 10,\n *   wildcard: lunr.Query.wildcard.TRAILING\n * })\n * @example <caption>using lunr.tokenizer to convert a string to tokens before using them as terms</caption>\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n  if (Array.isArray(term)) {\n    term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n    return this\n  }\n\n  var clause = options || {}\n  clause.term = term.toString()\n\n  this.clause(clause)\n\n  return this\n}\nlunr.QueryParseError = function (message, start, end) {\n  this.name = \"QueryParseError\"\n  this.message = message\n  this.start = start\n  this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n  this.lexemes = []\n  this.str = str\n  this.length = str.length\n  this.pos = 0\n  this.start = 0\n  this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n  var state = lunr.QueryLexer.lexText\n\n  while (state) {\n    state = state(this)\n  }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n  var subSlices = [],\n      sliceStart = this.start,\n      sliceEnd = this.pos\n\n  for (var i = 0; i < this.escapeCharPositions.length; i++) {\n    sliceEnd = this.escapeCharPositions[i]\n    subSlices.push(this.str.slice(sliceStart, sliceEnd))\n    sliceStart = sliceEnd + 1\n  }\n\n  subSlices.push(this.str.slice(sliceStart, this.pos))\n  this.escapeCharPositions.length = 0\n\n  return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n  this.lexemes.push({\n    type: type,\n    str: this.sliceString(),\n    start: this.start,\n    end: this.pos\n  })\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n  this.escapeCharPositions.push(this.pos - 1)\n  this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n  if (this.pos >= this.length) {\n    return lunr.QueryLexer.EOS\n  }\n\n  var char = this.str.charAt(this.pos)\n  this.pos += 1\n  return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n  return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n  if (this.start == this.pos) {\n    this.pos += 1\n  }\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n  this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n  var char, charCode\n\n  do {\n    char = this.next()\n    charCode = char.charCodeAt(0)\n  } while (charCode > 47 && charCode < 58)\n\n  if (char != lunr.QueryLexer.EOS) {\n    this.backup()\n  }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n  return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n  lexer.backup()\n  lexer.emit(lunr.QueryLexer.FIELD)\n  lexer.ignore()\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n  if (lexer.width() > 1) {\n    lexer.backup()\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n\n  lexer.ignore()\n\n  if (lexer.more()) {\n    return lunr.QueryLexer.lexText\n  }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.BOOST)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n  if (lexer.width() > 0) {\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n  while (true) {\n    var char = lexer.next()\n\n    if (char == lunr.QueryLexer.EOS) {\n      return lunr.QueryLexer.lexEOS\n    }\n\n    // Escape character is '\\'\n    if (char.charCodeAt(0) == 92) {\n      lexer.escapeCharacter()\n      continue\n    }\n\n    if (char == \":\") {\n      return lunr.QueryLexer.lexField\n    }\n\n    if (char == \"~\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexEditDistance\n    }\n\n    if (char == \"^\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexBoost\n    }\n\n    // \"+\" indicates term presence is required\n    // checking for length to ensure that only\n    // leading \"+\" are considered\n    if (char == \"+\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    // \"-\" indicates term presence is prohibited\n    // checking for length to ensure that only\n    // leading \"-\" are considered\n    if (char == \"-\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    if (char.match(lunr.QueryLexer.termSeparator)) {\n      return lunr.QueryLexer.lexTerm\n    }\n  }\n}\n\nlunr.QueryParser = function (str, query) {\n  this.lexer = new lunr.QueryLexer (str)\n  this.query = query\n  this.currentClause = {}\n  this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n  this.lexer.run()\n  this.lexemes = this.lexer.lexemes\n\n  var state = lunr.QueryParser.parseClause\n\n  while (state) {\n    state = state(this)\n  }\n\n  return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n  return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n  var lexeme = this.peekLexeme()\n  this.lexemeIdx += 1\n  return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n  var completedClause = this.currentClause\n  this.query.clause(completedClause)\n  this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n  var lexeme = parser.peekLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.type) {\n    case lunr.QueryLexer.PRESENCE:\n      return lunr.QueryParser.parsePresence\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n      if (lexeme.str.length >= 1) {\n        errorMessage += \" with value '\" + lexeme.str + \"'\"\n      }\n\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.str) {\n    case \"-\":\n      parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n      break\n    case \"+\":\n      parser.currentClause.presence = lunr.Query.presence.REQUIRED\n      break\n    default:\n      var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term or field, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n    var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n        errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.fields = [lexeme.str]\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  parser.currentClause.term = lexeme.str.toLowerCase()\n\n  if (lexeme.str.indexOf(\"*\") != -1) {\n    parser.currentClause.usePipeline = false\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var editDistance = parseInt(lexeme.str, 10)\n\n  if (isNaN(editDistance)) {\n    var errorMessage = \"edit distance must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.editDistance = editDistance\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var boost = parseInt(lexeme.str, 10)\n\n  if (isNaN(boost)) {\n    var errorMessage = \"boost must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.boost = boost\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\n  /**\n   * export the module via AMD, CommonJS or as a browser global\n   * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n   */\n  ;(function (root, factory) {\n    if (typeof define === 'function' && define.amd) {\n      // AMD. Register as an anonymous module.\n      define(factory)\n    } else if (typeof exports === 'object') {\n      /**\n       * Node. Does not work with strict CommonJS, but\n       * only CommonJS-like enviroments that support module.exports,\n       * like Node.\n       */\n      module.exports = factory()\n    } else {\n      // Browser globals (root is window)\n      root.lunr = factory()\n    }\n  }(this, function () {\n    /**\n     * Just return a value to define the module export.\n     * This example returns an object, but the module\n     * can return a function as the exported value.\n     */\n    return lunr\n  }))\n})();\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, exports) {\r\n    for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) __createBinding(exports, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n  ArticleDocument,\n  SearchDocumentMap,\n  SectionDocument,\n  setupSearchDocumentMap\n} from \"../document\"\nimport {\n  SearchHighlightFactoryFn,\n  setupSearchHighlighter\n} from \"../highlighter\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n  lang: string[]                       /* Search languages */\n  separator: string                    /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n  location: string                     /* Document location */\n  title: string                        /* Document title */\n  text: string                         /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n  | \"stemmer\"                          /* Stemmer */\n  | \"stopWordFilter\"                   /* Stop word filter */\n  | \"trimmer\"                          /* Trimmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n  config: SearchIndexConfig            /* Search index configuration */\n  docs: SearchIndexDocument[]          /* Search index documents */\n  index?: object | string              /* Prebuilt or serialized index */\n  pipeline?: SearchIndexPipeline       /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n  article: ArticleDocument             /* Article document */\n  sections: SectionDocument[]          /* Section documents */\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n  /**\n   * Search document mapping\n   *\n   * A mapping of URLs (including hash fragments) to the actual articles and\n   * sections of the documentation. The search document mapping must be created\n   * regardless of whether the index was prebuilt or not, as `lunr` itself will\n   * only store the actual index.\n   */\n  protected documents: SearchDocumentMap\n\n  /**\n   * Search highlight factory function\n   */\n  protected highlight: SearchHighlightFactoryFn\n\n  /**\n   * The `lunr` search index\n   */\n  protected index: lunr.Index\n\n  /**\n   * Create the search integration\n   *\n   * @param data - Search index\n   */\n  public constructor({ config, docs, pipeline, index }: SearchIndex) {\n    this.documents = setupSearchDocumentMap(docs)\n    this.highlight = setupSearchHighlighter(config)\n\n    /* If no index was given, create it */\n    if (typeof index === \"undefined\") {\n      this.index = lunr(function() {\n        pipeline = pipeline || [\"trimmer\", \"stopWordFilter\"]\n\n        /* Set up alternate search languages */\n        if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n          this.use((lunr as any)[config.lang[0]])\n        } else if (config.lang.length > 1) {\n          this.use((lunr as any).multiLanguage(...config.lang))\n        }\n\n        /* Set up pipeline according to configuration */\n        this.pipeline.reset()\n        for (const fn of pipeline)\n          this.pipeline.add(lunr[fn])\n\n        /* Set up search pipeline according to configuration */\n        this.searchPipeline.reset()\n        for (const fn of pipeline)\n          this.searchPipeline.add(lunr[fn])\n\n        /* Set up fields and reference */\n        this.field(\"title\", { boost: 1000 })\n        this.field(\"text\")\n        this.ref(\"location\")\n\n        /* Index documents */\n        for (const doc of docs)\n          this.add(doc)\n      })\n\n    /* Prebuilt or serialized index */\n    } else {\n      this.index = lunr.Index.load(\n        typeof index === \"string\"\n          ? JSON.parse(index)\n          : index\n      )\n    }\n  }\n\n  /**\n   * Search for matching documents\n   *\n   * The search index which MkDocs provides is divided up into articles, which\n   * contain the whole content of the individual pages, and sections, which only\n   * contain the contents of the subsections obtained by breaking the individual\n   * pages up at `h1` ... `h6`. As there may be many sections on different pages\n   * with identical titles (for example within this very project, e.g. \"Usage\"\n   * or \"Installation\"), they need to be put into the context of the containing\n   * page. For this reason, section results are grouped within their respective\n   * articles which are the top-level results that are returned.\n   *\n   * @param value - Query value\n   *\n   * @return Search results\n   */\n  public query(value: string): SearchResult[] {\n    if (value) {\n      try {\n\n        /* Group sections by containing article */\n        const groups = this.index.search(value)\n          .reduce((results, result) => {\n            const document = this.documents.get(result.ref)\n            if (typeof document !== \"undefined\") {\n              if (\"parent\" in document) {\n                const ref = document.parent.location\n                results.set(ref, [...results.get(ref) || [], result])\n              } else {\n                const ref = document.location\n                results.set(ref, results.get(ref) || [])\n              }\n            }\n            return results\n          }, new Map<string, lunr.Index.Result[]>())\n\n        /* Create highlighter for query */\n        const fn = this.highlight(value)\n\n        /* Map groups to search documents */\n        return [...groups].map(([ref, sections]) => ({\n          article: fn(this.documents.get(ref) as ArticleDocument),\n          sections: sections.map(section => {\n            return fn(this.documents.get(section.ref) as SectionDocument)\n          })\n        }))\n\n      /* Log errors to console (for now) */\n      } catch (err) {\n        // tslint:disable-next-line no-console\n        console.warn(`Invalid query: ${value} – see https://bit.ly/2s3ChXG`)\n      }\n    }\n\n    /* Return nothing in case of error or empty query */\n    return []\n  }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n  SETUP,                               /* Search index setup */\n  READY,                               /* Search index ready */\n  QUERY,                               /* Search query */\n  RESULT                               /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n  type: SearchMessageType.SETUP        /* Message type */\n  data: SearchIndex                    /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n  type: SearchMessageType.READY       /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n  type: SearchMessageType.QUERY        /* Message type */\n  data: string                         /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n  type: SearchMessageType.RESULT       /* Message type */\n  data: SearchResult[]                 /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n  | SearchSetupMessage\n  | SearchReadyMessage\n  | SearchQueryMessage\n  | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n  message: SearchMessage\n): message is SearchSetupMessage {\n  return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n  message: SearchMessage\n): message is SearchReadyMessage {\n  return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n  message: SearchMessage\n): message is SearchQueryMessage {\n  return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n  message: SearchMessage\n): message is SearchResultMessage {\n  return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"expose-loader?lunr!lunr\"\n\nimport { Search, SearchIndexConfig } from \"../../_\"\nimport { SearchMessage, SearchMessageType } from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nlet search: Search\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up multi-language support through `lunr-languages`\n *\n * This function will automatically import the stemmers necessary to process\n * the languages which were given through the search index configuration.\n *\n * @param config - Search index configuration\n */\nfunction setupLunrLanguages(config: SearchIndexConfig): void {\n  const base = \"../lunr\"\n\n  /* Add scripts for languages */\n  const scripts = []\n  for (const lang of config.lang) {\n    if (lang === \"ja\") scripts.push(`${base}/tinyseg.min.js`)\n    if (lang !== \"en\") scripts.push(`${base}/min/lunr.${lang}.min.js`)\n  }\n\n  /* Add multi-language support */\n  if (config.lang.length > 1)\n    scripts.push(`${base}/min/lunr.multi.min.js`)\n\n  /* Load scripts synchronously */\n  if (scripts.length)\n    importScripts(\n      `${base}/min/lunr.stemmer.support.min.js`,\n      ...scripts\n    )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Message handler\n *\n * @param message - Source message\n *\n * @return Target message\n */\nexport function handler(message: SearchMessage): SearchMessage {\n  switch (message.type) {\n\n    /* Search setup message */\n    case SearchMessageType.SETUP:\n      setupLunrLanguages(message.data.config)\n      search = new Search(message.data)\n      return {\n        type: SearchMessageType.READY\n      }\n\n    /* Search query message */\n    case SearchMessageType.QUERY:\n      return {\n        type: SearchMessageType.RESULT,\n        data: search ? search.query(message.data) : []\n      }\n\n    /* All other messages */\n    default:\n      throw new TypeError(\"Invalid message type\")\n  }\n}\n\n/* ----------------------------------------------------------------------------\n * Worker\n * ------------------------------------------------------------------------- */\n\naddEventListener(\"message\", ev => {\n  postMessage(handler(ev.data))\n})\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * A top-level article\n */\nexport interface ArticleDocument extends SearchIndexDocument {\n  linked: boolean                      /* Whether the section was linked */\n}\n\n/**\n * A section of an article\n */\nexport interface SectionDocument extends SearchIndexDocument {\n  parent: ArticleDocument              /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport type SearchDocument =\n  | ArticleDocument\n  | SectionDocument\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map<string, SearchDocument>\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n  docs: SearchIndexDocument[]\n): SearchDocumentMap {\n  const documents = new Map<string, SearchDocument>()\n  for (const doc of docs) {\n    const [path, hash] = doc.location.split(\"#\")\n\n    /* Extract location and title */\n    const location = doc.location\n    const title    = doc.title\n\n    /* Escape and cleanup text */\n    const text = escapeHTML(doc.text)\n      .replace(/\\s+(?=[,.:;!?])/g, \"\")\n      .replace(/\\s+/g, \" \")\n\n    /* Handle section */\n    if (hash) {\n      const parent = documents.get(path) as ArticleDocument\n\n      /* Ignore first section, override article */\n      if (!parent.linked) {\n        parent.title  = doc.title\n        parent.text   = text\n        parent.linked = true\n\n      /* Add subsequent section */\n      } else {\n        documents.set(location, {\n          location,\n          title,\n          text,\n          parent\n        })\n      }\n\n    /* Add article */\n    } else {\n      documents.set(location, {\n        location,\n        title,\n        text,\n        linked: false\n      })\n    }\n  }\n  return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\nimport { SearchDocument } from \"../document\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @template T - Search document type\n *\n * @param document - Search document\n *\n * @return Highlighted document\n */\nexport type SearchHighlightFn = <\n  T extends SearchDocument\n>(document: Readonly<T>) => T\n\n/**\n * Search highlight factory function\n *\n * @param value - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (value: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n  config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n  const separator = new RegExp(config.separator, \"img\")\n  const highlight = (_: unknown, data: string, term: string) => {\n    return `${data}<em>${term}</em>`\n  }\n\n  /* Return factory function */\n  return (value: string) => {\n    value = value\n      .replace(/[\\s*+-:~^]+/g, \" \")\n      .trim()\n\n    /* Create search term match expression */\n    const match = new RegExp(`(^|${config.separator})(${\n      value\n        .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n        .replace(separator, \"|\")\n    })`, \"img\")\n\n    /* Highlight document */\n    return document => ({\n      ...document,\n      title: document.title.replace(match, highlight),\n      text:  document.text.replace(match, highlight)\n    })\n  }\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/stylesheets/main.4dd2dd8d.min.css b/assets/stylesheets/main.4dd2dd8d.min.css
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@@ -0,0 +1,3 @@
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.task-list-control [type=checkbox]{z-index:-1;opacity:0}","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// stylelint-disable no-duplicate-selectors\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Enforce correct box model\nhtml {\n  box-sizing: border-box;\n}\n\n// All elements shall inherit the document default\n*,\n*::before,\n*::after {\n  box-sizing: inherit;\n}\n\n// Prevent adjustments of font size after orientation changes in IE and iOS\nhtml {\n  text-size-adjust: none;\n}\n\n// Remove margin in all browsers\nbody {\n  margin: 0;\n}\n\n// Reset horizontal rules in FF\nhr {\n  box-sizing: content-box;\n  overflow: visible;\n}\n\n// Reset tap outlines on iOS and Android\na,\nbutton,\nlabel,\ninput {\n  -webkit-tap-highlight-color: transparent;\n}\n\n// Reset link styles\na {\n  color: inherit;\n  text-decoration: none;\n}\n\n// Normalize font-size in all browsers\nsmall {\n  font-size: 80%;\n}\n\n// Prevent subscript and superscript from affecting line-height\nsub,\nsup {\n  line-height: 1em;\n}\n\n// Remove borders on images\nimg {\n  border-style: none;\n}\n\n// Reset table styles\ntable {\n  border-collapse: separate;\n  border-spacing: 0;\n}\n\n// Reset table cell styles\ntd,\nth {\n  font-weight: normal; // stylelint-disable-line\n  vertical-align: top;\n}\n\n// Reset button styles\nbutton {\n  margin: 0;\n  padding: 0;\n  font-size: inherit;\n  background: transparent;\n  border: 0;\n}\n\n// Reset input styles\ninput {\n  border: 0;\n  outline: none;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Color definitions\n:root {\n\n  // Default color shades\n  --md-default-fg-color:               hsla(0, 0%, 0%, 0.87);\n  --md-default-fg-color--light:        hsla(0, 0%, 0%, 0.54);\n  --md-default-fg-color--lighter:      hsla(0, 0%, 0%, 0.32);\n  --md-default-fg-color--lightest:     hsla(0, 0%, 0%, 0.07);\n  --md-default-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-default-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n  --md-default-bg-color--lighter:      hsla(0, 0%, 100%, 0.3);\n  --md-default-bg-color--lightest:     hsla(0, 0%, 100%, 0.12);\n\n  // Primary color shades\n  --md-primary-fg-color:               hsla(#{hex2hsl($clr-indigo-500)}, 1);\n  --md-primary-fg-color--light:        hsla(#{hex2hsl($clr-indigo-300)}, 1);\n  --md-primary-fg-color--dark:         hsla(#{hex2hsl($clr-indigo-700)}, 1);\n  --md-primary-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n\n  // Accent color shades\n  --md-accent-fg-color:                hsla(#{hex2hsl($clr-indigo-a200)}, 1);\n  --md-accent-fg-color--transparent:   hsla(#{hex2hsl($clr-indigo-a200)}, 0.1);\n  --md-accent-bg-color:                hsla(0, 0%, 100%, 1);\n  --md-accent-bg-color--light:         hsla(0, 0%, 100%, 0.7);\n\n  // Light theme (default)\n  > * {\n\n    // Code color shades\n    --md-code-fg-color:                hsla(200, 18%, 26%, 1);\n    --md-code-bg-color:                hsla(0, 0%, 96%, 1);\n\n    // Code highlighting color shades\n    --md-code-hl-color:                hsla(#{hex2hsl($clr-yellow-a200)}, 0.5);\n    --md-code-hl-number-color:         hsla(0, 67%, 50%, 1);\n    --md-code-hl-special-color:        hsla(340, 83%, 47%, 1);\n    --md-code-hl-function-color:       hsla(291, 45%, 50%, 1);\n    --md-code-hl-constant-color:       hsla(250, 63%, 60%, 1);\n    --md-code-hl-keyword-color:        hsla(219, 54%, 51%, 1);\n    --md-code-hl-string-color:         hsla(150, 63%, 30%, 1);\n    --md-code-hl-name-color:           var(--md-code-fg-color);\n    --md-code-hl-operator-color:       var(--md-default-fg-color--light);\n    --md-code-hl-punctuation-color:    var(--md-default-fg-color--light);\n    --md-code-hl-comment-color:        var(--md-default-fg-color--light);\n    --md-code-hl-generic-color:        var(--md-default-fg-color--light);\n    --md-code-hl-variable-color:       var(--md-default-fg-color--light);\n\n    // Typeset color shades\n    --md-typeset-color:                var(--md-default-fg-color);\n    --md-typeset-a-color:              var(--md-primary-fg-color);\n\n    // Typeset `mark` color shades\n    --md-typeset-mark-color:           hsla(#{hex2hsl($clr-yellow-a200)}, 0.5);\n\n    // Typeset `del` and `ins` color shades\n    --md-typeset-del-color:            hsla(6, 90%, 60%, 0.15);\n    --md-typeset-ins-color:            hsla(150, 90%, 44%, 0.15);\n\n    // Typeset `kbd` color shades\n    --md-typeset-kbd-color:            hsla(0, 0%, 98%, 1);\n    --md-typeset-kbd-accent-color:     hsla(0, 100%, 100%, 1);\n    --md-typeset-kbd-border-color:     hsla(0, 0%, 72%, 1);\n\n    // Admonition color shades\n    --md-admonition-fg-color:          var(--md-default-fg-color);\n    --md-admonition-bg-color:          var(--md-default-bg-color);\n\n    // Footer color shades\n    --md-footer-fg-color:              hsla(0, 0%, 100%, 1);\n    --md-footer-fg-color--light:       hsla(0, 0%, 100%, 0.7);\n    --md-footer-fg-color--lighter:     hsla(0, 0%, 100%, 0.3);\n    --md-footer-bg-color:              hsla(0, 0%, 0%, 0.87);\n    --md-footer-bg-color--dark:        hsla(0, 0%, 0%, 0.32);\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon\n.md-icon {\n\n  // SVG defaults\n  svg {\n    display: block;\n    width: px2rem(24px);\n    height: px2rem(24px);\n    margin: 0 auto;\n    fill: currentColor;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: font definitions\n// ----------------------------------------------------------------------------\n\n// Enable font-smoothing in Webkit and FF\nbody {\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale;\n}\n\n// Default fonts\nbody,\ninput {\n  color: var(--md-typeset-color);\n  font-feature-settings: \"kern\", \"liga\";\n  font-family: -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;\n}\n\n// Proportionally spaced fonts\ncode,\npre,\nkbd {\n  color: var(--md-typeset-color);\n  font-feature-settings: \"kern\";\n  font-family: SFMono-Regular, Consolas, Menlo, monospace;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: typesetted content\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-typeset-table--ascending: svg-load(\"@mdi/svg/svg/arrow-down.svg\");\n  --md-typeset-table--descending: svg-load(\"@mdi/svg/svg/arrow-up.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Content that is typeset - if possible, all margins, paddings and font sizes\n// should be set in ems, so nested blocks (e.g. admonitions) render correctly,\n// except headlines that should only appear on the top level and need to have\n// consistent spacing due to layout constraints.\n.md-typeset {\n  font-size: px2rem(16px);\n  line-height: 1.6;\n  color-adjust: exact;\n\n  // We'll use a smaller font-size for printing, so code examples don't break\n  // too early, and 16px looks too big anyway.\n  @media print {\n    font-size: px2rem(13.6px);\n  }\n\n  // Default spacing\n  p,\n  ul,\n  ol,\n  blockquote {\n    margin: 1em 0;\n  }\n\n  // 1st level headline\n  h1 {\n    margin: 0 0 px2em(40px, 32px);\n    color: var(--md-default-fg-color--light);\n    font-weight: 300;\n    font-size: px2em(32px);\n    line-height: 1.3;\n    letter-spacing: -0.01em;\n  }\n\n  // 2nd level headline\n  h2 {\n    margin: px2em(40px, 25px) 0 px2em(16px, 25px);\n    font-weight: 300;\n    font-size: px2em(25px);\n    line-height: 1.4;\n    letter-spacing: -0.01em;\n  }\n\n  // 3rd level headline\n  h3 {\n    margin: px2em(32px, 20px) 0 px2em(16px, 20px);\n    font-weight: 400;\n    font-size: px2em(20px);\n    line-height: 1.5;\n    letter-spacing: -0.01em;\n  }\n\n  // 3rd level headline following an 2nd level headline\n  h2 + h3 {\n    margin-top: px2em(16px, 20px);\n  }\n\n  // 4th level headline\n  h4 {\n    margin: px2em(16px) 0;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n\n  // 5th and 6th level headline\n  h5,\n  h6 {\n    margin: px2em(16px, 12.8px) 0;\n    color: var(--md-default-fg-color--light);\n    font-weight: 700;\n    font-size: px2em(12.8px);\n    letter-spacing: -0.01em;\n  }\n\n  // Overrides for 5th level headline\n  h5 {\n    text-transform: uppercase;\n  }\n\n  // Horizontal separators\n  hr {\n    margin: 1.5em 0;\n    border-bottom: px2rem(1px) dotted var(--md-default-fg-color--lighter);\n  }\n\n  // Links\n  a {\n    color: var(--md-typeset-a-color);\n    word-break: break-word;\n\n    // Also enable color transition on pseudo elements\n    &,\n    &::before {\n      transition: color 125ms;\n    }\n\n    // Focused or hovered links\n    &:focus,\n    &:hover {\n      color: var(--md-accent-fg-color);\n    }\n  }\n\n  // Code blocks\n  code,\n  pre,\n  kbd {\n    color: var(--md-code-fg-color);\n    direction: ltr;\n\n    // Wrap text and hide scollbars\n    @media print {\n      white-space: pre-wrap;\n    }\n  }\n\n  // Inline code blocks\n  code {\n    padding: 0 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thin;\n      scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n      // Override Firefox scrollbar hover color\n      &:hover {\n        scrollbar-color: var(--md-accent-fg-color) transparent;\n      }\n\n      // Override native scrollbar styles\n      &::-webkit-scrollbar {\n        width: px2rem(4px);\n        height: px2rem(4px);\n      }\n\n      // Scrollbar thumb\n      &::-webkit-scrollbar-thumb {\n        background-color: var(--md-default-fg-color--lighter);\n\n        // Hovered scrollbar thumb\n        &:hover {\n          background-color: var(--md-accent-fg-color);\n        }\n      }\n    }\n  }\n\n  // [mobile -]: Stretch to whole width\n  @include break-to-device(mobile) {\n\n    // Stretch top-level containers\n    > pre {\n      margin: 1em px2rem(-16px);\n\n      // Remove rounded borders\n      code {\n        border-radius: 0;\n      }\n    }\n  }\n\n  // Keyboard key\n  kbd {\n    display: inline-block;\n    padding: 0 px2em(8px, 12px);\n    color: var(--md-default-fg-color);\n    font-size: px2em(12px);\n    vertical-align: text-top;\n    word-break: break-word;\n    background-color: var(--md-typeset-kbd-color);\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(2px)  0 px2rem(1px) var(--md-typeset-kbd-border-color),\n      0 px2rem(2px)  0             var(--md-typeset-kbd-border-color),\n      0 px2rem(-2px) px2rem(4px)   var(--md-typeset-kbd-accent-color) inset;\n  }\n\n  // Text highlighting marker\n  mark {\n    color: inherit;\n    word-break: break-word;\n    background-color: var(--md-typeset-mark-color);\n    box-decoration-break: clone;\n  }\n\n  // Abbreviations\n  abbr {\n    text-decoration: none;\n    border-bottom: px2rem(1px) dotted var(--md-default-fg-color--light);\n    cursor: help;\n  }\n\n  // Small text\n  small {\n    opacity: 0.75;\n  }\n\n  // Superscript and subscript\n  sup,\n  sub {\n    margin-left: px2em(1px, 12.8px);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(1px, 12.8px);\n      margin-left: initial;\n    }\n  }\n\n  // Blockquotes, possibly nested\n  blockquote {\n    padding-left: px2rem(12px);\n    color: var(--md-default-fg-color--light);\n    border-left: px2rem(4px) solid var(--md-default-fg-color--lighter);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding-right: px2rem(12px);\n      padding-left: initial;\n      border-right: px2rem(4px) solid var(--md-default-fg-color--lighter);\n      border-left: initial;\n    }\n  }\n\n  // Unordered lists\n  ul {\n    list-style-type: disc;\n  }\n\n  // Unordered and ordered lists\n  ul,\n  ol {\n    margin-left: px2em(10px);\n    padding: 0;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(10px);\n      margin-left: initial;\n    }\n\n    // Nested ordered lists\n    ol {\n      list-style-type: lower-alpha;\n\n      // Triply nested ordered list\n      ol {\n        list-style-type: lower-roman;\n      }\n    }\n\n    // List elements\n    li {\n      margin-bottom: 0.5em;\n      margin-left: px2em(20px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2em(20px);\n        margin-left: initial;\n      }\n\n      // Decrease vertical spacing\n      p,\n      blockquote {\n        margin: 0.5em 0;\n      }\n\n      // Remove margin on last element\n      &:last-child {\n        margin-bottom: 0;\n      }\n\n      // Nested lists\n      ul,\n      ol {\n        margin: 0.5em 0 0.5em px2em(10px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          margin-right: px2em(10px);\n          margin-left: initial;\n        }\n      }\n    }\n  }\n\n  // Definition lists\n  dd {\n    margin: 1em 0 1.5em px2em(30px);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(30px);\n      margin-left: initial;\n    }\n  }\n\n  // Limit width to container, scale height proportionally\n  img,\n  svg {\n    max-width: 100%;\n    height: auto;\n\n    // Left-aligned\n    &[align=\"left\"] {\n      margin: 1em;\n      margin-left: 0;\n    }\n\n    // Right-aligned\n    &[align=\"right\"] {\n      margin: 1em;\n      margin-right: 0;\n    }\n\n    // Remove top spacing of sole children\n    &[align]:only-child {\n      margin-top: 0;\n    }\n  }\n\n  // Figures\n  figure {\n    width: fit-content;\n    max-width: 100%;\n    margin: 0 auto;\n    text-align: center;\n  }\n\n  // Figure captions\n  figcaption {\n    max-width: px2rem(480px);\n    margin: 0.5em auto;\n    font-style: italic;\n  }\n\n  // Limit width to container\n  iframe {\n    max-width: 100%;\n  }\n\n  // Data tables\n  table:not([class]) {\n    display: inline-block;\n    max-width: 100%;\n    overflow: auto;\n    font-size: px2rem(12.8px);\n    background: var(--md-default-bg-color);\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n      0 0           px2rem(1px)  hsla(0, 0%, 0%, 0.1);\n    touch-action: auto;\n\n    // Due to margin collapse because of the necessary inline-block hack, we\n    // cannot increase the bottom margin on the table, so we just increase the\n    // top margin on the following element\n    & + * {\n      margin-top: 1.5em;\n    }\n\n    // Elements inside cells\n    th > *,\n    td > * {\n\n      // Remove top spacing of first child\n      &:first-child {\n        margin-top: 0;\n      }\n\n      // Remove bottom spacing of last child\n      &:last-child {\n        margin-bottom: 0;\n      }\n    }\n\n    // Table headings and cells\n    th:not([align]),\n    td:not([align]) {\n      text-align: left;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        text-align: right;\n      }\n    }\n\n    // Table headings\n    th {\n      min-width: px2rem(100px);\n      padding: px2em(12px, 12.8px) px2em(16px, 12.8px);\n      color: var(--md-default-bg-color);\n      vertical-align: top;\n      background-color: var(--md-default-fg-color--light);\n\n      // Links in table headings\n      a {\n        color: inherit;\n      }\n    }\n\n    // Table cells\n    td {\n      padding: px2em(12px, 12.8px) px2em(16px, 12.8px);\n      vertical-align: top;\n      border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n    }\n\n    // Table rows\n    tr {\n      transition: background-color 125ms;\n\n      // Add background on hover\n      &:hover {\n        background-color: rgba(0, 0, 0, 0.035);\n        box-shadow: 0 px2rem(1px) 0 var(--md-default-bg-color) inset;\n      }\n\n      // Remove top border on first row\n      &:first-child td {\n        border-top: 0;\n      }\n    }\n\n    // Do not wrap links in tables\n    a {\n      word-break: normal;\n    }\n  }\n\n  // Sortable tables\n  table th[role=\"columnheader\"] {\n    cursor: pointer;\n\n    // Sort icon\n    &::after {\n      display: inline-block;\n      width: 1.2em;\n      height: 1.2em;\n      margin-left: 0.5em;\n      vertical-align: sub;\n      mask-repeat: no-repeat;\n      content: \" \";\n    }\n\n    // Sort ascending\n    &[aria-sort=\"ascending\"]::after {\n      background-color: currentColor;\n      mask-image: var(--md-typeset-table--ascending);\n    }\n\n    // Sort descending\n    &[aria-sort=\"descending\"]::after {\n      background-color: currentColor;\n      mask-image: var(--md-typeset-table--descending);\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    margin: 1em px2rem(-16px);\n    overflow-x: auto;\n    touch-action: auto;\n  }\n\n  // Data table wrapper, in case JavaScript is available\n  &__table {\n    display: inline-block;\n    margin-bottom: 0.5em;\n    padding: 0 px2rem(16px);\n\n    // Data tables\n    table {\n      display: table;\n      width: 100%;\n      margin: 0;\n      overflow: hidden;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n///   $break-devices: (\n///     mobile: (\n///       portrait:  220px  479px,\n///       landscape: 480px  719px\n///     ),\n///     tablet: (\n///       portrait:  720px  959px,\n///       landscape: 960px  1219px\n///     ),\n///     screen: (\n///       small:     1220px 1599px,\n///       medium:    1600px 1999px,\n///       large:     2000px\n///     )\n///   );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n  $min: 1000000;\n  $max: 0;\n  @each $key, $value in $devices {\n    @while type-of($value) == map {\n      $value: break-select-min-max($value);\n    }\n    @if type-of($value) == list {\n      @each $number in $value {\n        @if type-of($number) == number {\n          $min: min($number, $min);\n          @if $max != null {\n            $max: max($number, $max);\n          }\n        } @else {\n          @error \"Invalid number: #{$number}\";\n        }\n      }\n    } @else if type-of($value) == number {\n      $min: min($value, $min);\n      $max: null;\n    } @else {\n      @error \"Invalid value: #{$value}\";\n    }\n  }\n  @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n  $current: $break-devices;\n  @for $n from 1 through length($device) {\n    @if type-of($current) == map {\n      $current: map-get($current, nth($device, $n));\n    } @else {\n      @error \"Invalid device map: #{$devices}\";\n    }\n  }\n  @if type-of($current) == list or type-of($current) == number {\n    $current: (default: $current);\n  }\n  @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (min-width: $breakpoint) {\n      @content;\n    }\n  } @else if type-of($breakpoint) == list {\n    $min: nth($breakpoint, 1);\n    $max: nth($breakpoint, 2);\n    @if type-of($min) == number and type-of($max) == number {\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid breakpoint: #{$breakpoint}\";\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n  @if type-of($breakpoint) == string {\n    @media screen and (orientation: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (max-aspect-ratio: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    @if nth($breakpoint, 2) != null {\n      $min: nth($breakpoint, 1);\n      $max: nth($breakpoint, 2);\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid device: #{$device}\";\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $min: nth($breakpoint, 1);\n    @media screen and (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $max: nth($breakpoint, 2);\n    @media screen and (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) drawer\n$md-toggle__drawer--checked:\n  \"[data-md-toggle=\\\"drawer\\\"]:checked ~\";\n\n// ----------------------------------------------------------------------------\n// Rules: base grid and containers\n// ----------------------------------------------------------------------------\n\n// Stretch container to viewport and set base font-sizefor simple calculations\n// based on relative ems (rems)\nhtml {\n  height: 100%;\n  // Hack: some browsers on some operating systems don't account for scroll\n  // bars when firing media queries, so we need to do this for safety. This\n  // currently impacts the table of contents component between 1220 and 1234px\n  // and is to current knowledge not fixable.\n  overflow-x: hidden;\n  // Hack: normally, we would set the base font-size to 62.5%, so we can base\n  // all calculations on 10px, but Chromium and Chrome define a minimal font\n  // size of 12 if the system language is set to Chinese. For this reason we\n  // just double the font-size, set it to 20px which seems to do the trick.\n  //\n  // See https://github.com/squidfunk/mkdocs-material/issues/911\n  font-size: 125%;\n\n  // [screen medium +]: Set base font-size to 11px\n  @include break-from-device(screen medium) {\n    font-size: 137.50%;\n  }\n\n  // [screen large +]: Set base font-size to 12px\n  @include break-from-device(screen large) {\n    font-size: 150%;\n  }\n}\n\n// Stretch body to container and leave room for footer\nbody {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%;\n  min-height: 100%;\n  // Hack: reset font-size to 10px, so the spacing for all inline elements is\n  // correct again. Otherwise the spacing would be based on 20px.\n  font-size: 0.5rem; // stylelint-disable-line unit-whitelist\n  background-color: var(--md-default-bg-color);\n\n  // [tablet portrait -]: Lock body to disable scroll bubbling\n  @include break-to-device(tablet portrait) {\n\n    // Lock body to viewport height (e.g. in search mode)\n    &[data-md-state=\"lock\"] {\n      position: fixed;\n    }\n  }\n\n  // Hack: we must not use flex, or Firefox will only print the first page\n  // see https://mzl.la/39DgR3m\n  @media print {\n    display: block;\n  }\n}\n\n// Horizontal separators\nhr {\n  display: block;\n  height: px2rem(1px);\n  padding: 0;\n  border: 0;\n}\n\n// Template-wide grid\n.md-grid {\n  max-width: px2rem(1220px);\n  margin-right: auto;\n  margin-left: auto;\n}\n\n// Content wrapper\n.md-container {\n  display: flex;\n  flex-direction: column;\n  flex-grow: 1;\n\n  // Hack: we must not use flex, or Firefox will only print the first page\n  // see https://mzl.la/39DgR3m\n  @media print {\n    display: block;\n  }\n}\n\n// The main content should stretch to maximum height in the table\n.md-main {\n  flex-grow: 1;\n\n  // Increase top spacing of content area to give typography more room\n  &__inner {\n    display: flex;\n    height: 100%;\n    margin-top: px2rem(24px + 6px);\n  }\n}\n\n// Apply ellipsis in case of overflowing text\n.md-ellipsis {\n  display: block;\n  overflow: hidden;\n  white-space: nowrap;\n  text-overflow: ellipsis;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: navigational elements\n// ----------------------------------------------------------------------------\n\n// Toggle checkbox\n.md-toggle {\n  display: none;\n}\n\n// Overlay below expanded drawer\n.md-overlay {\n  position: fixed;\n  top: 0;\n  z-index: 3;\n  width: 0;\n  height: 0;\n  background-color: hsla(0, 0%, 0%, 0.54);\n  opacity: 0;\n  transition:\n    width     0ms 250ms,\n    height    0ms 250ms,\n    opacity 250ms;\n\n  // [tablet -]: Trigger overlay\n  @include break-to-device(tablet) {\n\n    // Expanded drawer\n    #{$md-toggle__drawer--checked} & {\n      width: 100%;\n      height: 100%;\n      opacity: 1;\n      transition:\n        width     0ms,\n        height    0ms,\n        opacity 250ms;\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: skip link\n// ----------------------------------------------------------------------------\n\n// Skip link\n.md-skip {\n  position: fixed;\n  // Hack: if we don't set the negative z-index, the skip link will induce the\n  // creation of new layers when code blocks are near the header on scrolling\n  z-index: -1;\n  margin: px2rem(10px);\n  padding: px2rem(6px) px2rem(10px);\n  color: var(--md-default-bg-color);\n  font-size: px2rem(12.8px);\n  background-color: var(--md-default-fg-color);\n  border-radius: px2rem(2px);\n  transform: translateY(px2rem(8px));\n  opacity: 0;\n\n  // Show skip link on focus\n  &:focus {\n    z-index: 10;\n    transform: translateY(0);\n    opacity: 1;\n    transition:\n      transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n      opacity   175ms 75ms;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: print styles\n// ----------------------------------------------------------------------------\n\n// Add margins to page\n@page {\n  margin: 25mm;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Announcement bar\n.md-announce {\n  overflow: auto;\n  background-color: var(--md-footer-bg-color);\n\n  // Actual content\n  &__inner {\n    margin: px2rem(12px) auto;\n    padding: 0 px2rem(16px);\n    color: var(--md-footer-fg-color);\n    font-size: px2rem(14px);\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Button\n  .md-button {\n    display: inline-block;\n    padding: px2em(10px) px2em(32px);\n    color: var(--md-primary-fg-color);\n    font-weight: 700;\n    border: px2rem(2px) solid currentColor;\n    border-radius: px2rem(2px);\n    transition:\n      color            125ms,\n      background-color 125ms,\n      border-color     125ms;\n\n    // Primary button\n    &--primary {\n      color: var(--md-primary-bg-color);\n      background-color: var(--md-primary-fg-color);\n      border-color: var(--md-primary-fg-color);\n    }\n\n    // Focused or hovered button\n    &:focus,\n    &:hover {\n      color: var(--md-accent-bg-color);\n      background-color: var(--md-accent-fg-color);\n      border-color: var(--md-accent-fg-color);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-clipboard-icon: svg-load(\"@mdi/svg/svg/content-copy.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Copy to clipboard\n.md-clipboard {\n  position: absolute;\n  top: px2em(8px);\n  right: px2em(8px);\n  z-index: 1;\n  width: px2em(24px);\n  height: px2em(24px);\n  color: var(--md-default-fg-color--lightest);\n  // background-color: var(--md-code-bg-color);\n  border-radius: px2rem(2px);\n  cursor: pointer;\n  transition: color 125ms;\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // // Make room for clipboard button in case of overflowing code\n  // .md-typeset & + code {\n  //   padding-right: px2em(24px + 2 * 8px, 13.6px);\n  // }\n\n  // Slightly smaller icon\n  &::after {\n    display: block;\n    width: px2em(18px);\n    height: px2em(18px);\n    margin: 0 auto;\n    background-color: currentColor;\n    mask-image: var(--md-clipboard-icon);\n    mask-repeat: no-repeat;\n    content: \"\";\n  }\n\n  // Show on container hover\n  pre:hover & {\n    color: var(--md-default-fg-color--light);\n  }\n\n  // Focused or hovered icon\n  pre &:focus,\n  pre &:hover {\n    color: var(--md-accent-fg-color);\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Content container\n.md-content {\n  flex: 1;\n  max-width: 100%;\n\n  // [tablet landscape]: Decrease horizontal width\n  @include break-at-device(tablet landscape) {\n    max-width: calc(100% - #{px2rem(242px)});\n  }\n\n  // [screen +]: Decrease horizontal width\n  @include break-from-device(screen) {\n    max-width: calc(100% - #{px2rem(242px)} * 2);\n  }\n\n  // Define spacing\n  &__inner {\n    margin: 0 px2rem(16px) px2rem(24px);\n    padding-top: px2rem(12px);\n\n    // [screen +]: Increase horizontal spacing\n    @include break-from-device(screen) {\n      margin-right: px2rem(24px);\n      margin-left: px2rem(24px);\n    }\n\n    // Hack: add pseudo element for spacing, as the overflow of the content\n    // container may not be hidden due to an imminent offset error on targets\n    &::before {\n      display: block;\n      height: px2rem(8px);\n      content: \"\";\n    }\n\n    // Hack: remove bottom spacing of last element, due to margin collapse\n    > :last-child {\n      margin-bottom: 0;\n    }\n  }\n\n  // Button next to the title\n  &__button {\n    float: right;\n    margin: px2rem(8px) 0;\n    margin-left: px2rem(8px);\n    padding: 0;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      float: left;\n      margin-right: px2rem(8px);\n      margin-left: initial;\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // Override default link color for icons\n    .md-typeset & {\n      color: var(--md-default-fg-color--lighter);\n    }\n\n    // Align text with icon\n    svg {\n      display: inline;\n      vertical-align: top;\n    }\n\n    // Hide for print\n    @media print {\n      display: none;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Dialog rendered as snackbar\n.md-dialog {\n  @include z-depth(2);\n\n  position: fixed;\n  right: px2rem(16px);\n  bottom: px2rem(16px);\n  left: initial;\n  z-index: 2;\n  display: block;\n  min-width: px2rem(222px);\n  padding: px2rem(8px) px2rem(12px);\n  color: var(--md-default-bg-color);\n  font-size: px2rem(14px);\n  background: var(--md-default-fg-color);\n  border: none;\n  border-radius: px2rem(2px);\n  transform: translateY(100%);\n  opacity: 0;\n  transition:\n    transform 0ms   400ms,\n    opacity   400ms;\n\n  // Adjust for right-to-left languages\n  [dir=\"rtl\"] & {\n    right: initial;\n    left: px2rem(16px);\n  }\n\n  // Show open dialog\n  &[data-md-state=\"open\"] {\n    transform: translateY(0);\n    opacity: 1;\n    transition:\n      transform 400ms cubic-bezier(0.075, 0.85, 0.175, 1),\n      opacity   400ms;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n","//\n// Name:           Material Shadows\n// Description:    Mixins for Material Design Shadows.\n// Version:        3.0.1\n//\n// Author:         Denis Malinochkin\n// Git:            https://github.com/mrmlnc/material-shadows\n//\n// twitter:        @mrmlnc\n//\n// ------------------------------------\n\n\n// Mixins\n// ------------------------------------\n\n@mixin z-depth-transition() {\n  transition: box-shadow .28s cubic-bezier(.4, 0, .2, 1);\n}\n\n@mixin z-depth-focus() {\n  box-shadow: 0 0 8px rgba(0, 0, 0, .18), 0 8px 16px rgba(0, 0, 0, .36);\n}\n\n@mixin z-depth-2dp() {\n  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, .14),\n              0 1px 5px 0 rgba(0, 0, 0, .12),\n              0 3px 1px -2px rgba(0, 0, 0, .2);\n}\n\n@mixin z-depth-3dp() {\n  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, .14),\n              0 1px 8px 0 rgba(0, 0, 0, .12),\n              0 3px 3px -2px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-4dp() {\n  box-shadow: 0 4px 5px 0 rgba(0, 0, 0, .14),\n              0 1px 10px 0 rgba(0, 0, 0, .12),\n              0 2px 4px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-6dp() {\n  box-shadow: 0 6px 10px 0 rgba(0, 0, 0, .14),\n              0 1px 18px 0 rgba(0, 0, 0, .12),\n              0 3px 5px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-8dp() {\n  box-shadow: 0 8px 10px 1px rgba(0, 0, 0, .14),\n              0 3px 14px 2px rgba(0, 0, 0, .12),\n              0 5px 5px -3px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-16dp() {\n  box-shadow: 0 16px 24px 2px rgba(0, 0, 0, .14),\n              0  6px 30px 5px rgba(0, 0, 0, .12),\n              0  8px 10px -5px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-24dp() {\n  box-shadow: 0  9px 46px  8px rgba(0, 0, 0, .14),\n              0 24px 38px  3px rgba(0, 0, 0, .12),\n              0 11px 15px -7px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth($dp: 2) {\n  @if $dp == 2 {\n    @include z-depth-2dp();\n  } @else if $dp == 3 {\n    @include z-depth-3dp();\n  } @else if $dp == 4 {\n    @include z-depth-4dp();\n  } @else if $dp == 6 {\n    @include z-depth-6dp();\n  } @else if $dp == 8 {\n    @include z-depth-8dp();\n  } @else if $dp == 16 {\n    @include z-depth-16dp();\n  } @else if $dp == 24 {\n    @include z-depth-24dp();\n  }\n}\n\n\n// Class generator\n// ------------------------------------\n\n@mixin z-depth-classes($transition: false, $focus: false) {\n  @if $transition == true {\n    &-transition {\n      @include z-depth-transition();\n    }\n  }\n\n  @if $focus == true {\n    &-focus {\n      @include z-depth-focus();\n    }\n  }\n\n  // The available values for the shadow depth\n  @each $depth in 2, 3, 4, 6, 8, 16, 24 {\n    &-#{$depth}dp {\n      @include z-depth($depth);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Application header (stays always on top)\n.md-header {\n  position: sticky;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: 2;\n  height: px2rem(48px);\n  color: var(--md-primary-bg-color);\n  background-color: var(--md-primary-fg-color);\n  // Hack: reduce jitter by adding a transparent box shadow of the same size\n  // so the size of the layer doesn't change during animation\n  box-shadow:\n    0 0           px2rem(4px) rgba(0, 0, 0, 0),\n    0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0);\n  transition:\n    color            250ms,\n    background-color 250ms;\n\n  // Always hide shadow, in case JavaScript is not available\n  .no-js & {\n    box-shadow: none;\n    transition: none;\n  }\n\n  // Show and animate shadow\n  &[data-md-state=\"shadow\"] {\n    box-shadow:\n      0 0           px2rem(4px) rgba(0, 0, 0, 0.1),\n      0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0.2);\n    transition:\n      color            250ms,\n      background-color 250ms,\n      box-shadow       250ms;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n\n// Navigation within header\n.md-header-nav {\n  display: flex;\n  padding: 0 px2rem(4px);\n\n  // Icon buttons\n  &__button {\n    position: relative;\n    z-index: 1;\n    display: block;\n    margin: px2rem(4px);\n    padding: px2rem(8px);\n    cursor: pointer;\n    transition: opacity 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // Focused or hovered icon\n    &:focus,\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Logo\n    &.md-logo {\n      margin: px2rem(4px);\n      padding: px2rem(8px);\n\n      // Image or icon\n      img,\n      svg {\n        display: block;\n        width: px2rem(24px);\n        height: px2rem(24px);\n        fill: currentColor;\n      }\n    }\n\n    // Hide search icon, if JavaScript is not available.\n    .no-js &[for=\"__search\"] {\n      display: none;\n    }\n\n    // [tablet landscape +]: Hide the search button\n    @include break-from-device(tablet landscape) {\n\n      // Search button\n      &[for=\"__search\"] {\n        display: none;\n      }\n    }\n\n    // [tablet -]: Hide the logo\n    @include break-to-device(tablet) {\n\n      // Logo\n      &.md-logo {\n        display: none;\n      }\n    }\n\n    // [screen +]: Hide the menu button\n    @include break-from-device(screen) {\n\n      // Menu button\n      &[for=\"__drawer\"] {\n        display: none;\n      }\n    }\n  }\n\n  // Header topics\n  &__topic {\n    position: absolute;\n    width: 100%;\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   150ms;\n\n    // Page title\n    & + & {\n      z-index: -1;\n      transform: translateX(px2rem(25px));\n      opacity: 0;\n      transition:\n        transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(px2rem(-25px));\n      }\n    }\n\n    // Induce ellipsis, if no JavaScript is available\n    .no-js & {\n      position: initial;\n    }\n\n    // Hide page title as it is invisible anyway and will overflow the header\n    .no-js & + & {\n      display: none;\n    }\n  }\n\n  // Header title - set line height to match icon for correct alignment\n  &__title {\n    flex-grow: 1;\n    padding: 0 px2rem(20px);\n    font-size: px2rem(18px);\n    line-height: px2rem(48px);\n\n    // Show page title\n    &[data-md-state=\"active\"] .md-header-nav__topic {\n      z-index: -1;\n      transform: translateX(px2rem(-25px));\n      opacity: 0;\n      transition:\n        transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(px2rem(25px));\n      }\n\n      // Page title\n      & + .md-header-nav__topic {\n        z-index: 0;\n        transform: translateX(0);\n        opacity: 1;\n        transition:\n          transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n          opacity   150ms;\n        pointer-events: initial;\n      }\n    }\n\n    // Patch ellipsis\n    > .md-header-nav__ellipsis {\n      position: relative;\n      width: 100%;\n      height: 100%;\n    }\n  }\n\n  // Repository containing source\n  &__source {\n    display: none;\n\n    // [tablet landscape +]: Show the reposistory from tablet\n    @include break-from-device(tablet landscape) {\n      display: block;\n      width: px2rem(234px);\n      max-width: px2rem(234px);\n      margin-left: px2rem(20px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(20px);\n        margin-left: initial;\n      }\n    }\n\n    // [screen +]: Increase spacing of search bar\n    @include break-from-device(screen) {\n      margin-left: px2rem(28px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(28px);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Hero teaser\n.md-hero {\n  overflow: hidden;\n  color: var(--md-primary-bg-color);\n  font-size: px2rem(20px);\n  background-color: var(--md-primary-fg-color);\n  transition: background 250ms;\n\n  // Inner wrapper\n  &__inner {\n    margin-top: px2rem(20px);\n    padding: px2rem(16px) px2rem(16px) px2rem(8px);\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   250ms;\n    transition-delay: 100ms;\n\n    // [tablet -]: Compensate for missing tabs\n    @include break-to-device(tablet) {\n      margin-top: px2rem(48px);\n      margin-bottom: px2rem(24px);\n    }\n\n    // Fade-out tabs background upon scrolling\n    [data-md-state=\"hidden\"] & {\n      transform: translateY(px2rem(12.5px));\n      opacity: 0;\n      transition:\n        transform   0ms 400ms,\n        opacity   100ms   0ms;\n      pointer-events: none;\n    }\n\n    // Adjust bottom spacing if there are no tabs\n    .md-hero--expand & {\n      margin-bottom: px2rem(24px);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Application footer\n.md-footer {\n  color: var(--md-footer-fg-color);\n  background-color: var(--md-footer-bg-color);\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n\n// Navigation within footer\n.md-footer-nav {\n\n  // Set spacing\n  &__inner {\n    padding: px2rem(4px);\n    overflow: auto;\n  }\n\n  // Links to previous and next page\n  &__link {\n    display: flex;\n    padding-top: px2rem(28px);\n    padding-bottom: px2rem(8px);\n    transition: opacity 250ms;\n\n    // [tablet +]: Set proportional width\n    @include break-from-device(tablet) {\n      width: 50%;\n    }\n\n    // Focused or hovered links\n    &:focus,\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Link to previous page\n    &--prev {\n      float: left;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: right;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n\n      // [mobile -]: Hide title for previous page\n      @include break-to-device(mobile) {\n        width: 25%;\n\n        // Title\n        .md-footer-nav__title {\n          display: none;\n        }\n      }\n    }\n\n    // Link to next page\n    &--next {\n      float: right;\n      text-align: right;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n        text-align: left;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n\n      // [mobile -]: Hide title for previous page\n      @include break-to-device(mobile) {\n        width: 75%;\n      }\n    }\n  }\n\n  // Link title - set line height to match icon for correct alignment\n  &__title {\n    position: relative;\n    flex-grow: 1;\n    max-width: calc(100% - #{px2rem(48px)});\n    padding: 0 px2rem(20px);\n    font-size: px2rem(18px);\n    line-height: px2rem(48px);\n  }\n\n  // Link button\n  &__button {\n    margin: px2rem(4px);\n    padding: px2rem(8px);\n  }\n\n  // Link direction\n  &__direction {\n    position: absolute;\n    right: 0;\n    left: 0;\n    margin-top: px2rem(-20px);\n    padding: 0 px2rem(20px);\n    font-size: px2rem(12.8px);\n    opacity: 0.7;\n  }\n}\n\n// Non-navigational information\n.md-footer-meta {\n  background-color: var(--md-footer-bg-color--dark);\n\n  // Set spacing\n  &__inner {\n    display: flex;\n    flex-wrap: wrap;\n    justify-content: space-between;\n    padding: px2rem(4px);\n  }\n\n  // Use a decent color for non-hovered links and ensure specificity\n  html &.md-typeset a {\n    color: var(--md-footer-fg-color--light);\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      color: var(--md-footer-fg-color);\n    }\n  }\n}\n\n// Copyright and theme information\n.md-footer-copyright {\n  width: 100%;\n  margin: auto px2rem(12px);\n  padding: px2rem(8px) 0;\n  color: var(--md-footer-fg-color--lighter);\n  font-size: px2rem(12.8px);\n\n  // [tablet portrait +]: Show next to social media links\n  @include break-from-device(tablet portrait) {\n    width: auto;\n  }\n\n  // Highlight copyright information\n  &__highlight {\n    color: var(--md-footer-fg-color--light);\n  }\n}\n\n// Social links\n.md-footer-social {\n  margin: 0 px2rem(8px);\n  padding: px2rem(4px) 0 px2rem(12px);\n\n  // [tablet portrait +]: Show next to copyright information\n  @include break-from-device(tablet portrait) {\n    padding: px2rem(12px) 0;\n  }\n\n  // Link with icon\n  &__link {\n    display: inline-block;\n    width: px2rem(32px);\n    height: px2rem(32px);\n    text-align: center;\n\n    // Adjust line-height to match height for correct alignment\n    &::before {\n      line-height: 1.9;\n    }\n\n    // Social icon\n    svg {\n      max-height: px2rem(16px);\n      vertical-align: -25%;\n      fill: currentColor;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-nav-icon--prev: svg-load(\"@mdi/svg/svg/arrow-left.svg\");\n  --md-nav-icon--next: svg-load(\"@mdi/svg/svg/chevron-right.svg\");\n  --md-toc-icon: svg-load(\"@mdi/svg/svg/table-of-contents.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Navigation container\n.md-nav {\n  font-size: px2rem(14px);\n  line-height: 1.3;\n\n  // List title\n  &__title {\n    display: block;\n    padding: 0 px2rem(12px);\n    overflow: hidden;\n    font-weight: 700;\n    text-overflow: ellipsis;\n\n    // Hide buttons by default\n    .md-nav__button {\n      display: none;\n\n      // Stretch images\n      img {\n        width: 100%;\n        height: auto;\n      }\n\n      // Logo\n      &.md-logo {\n\n        // Image or icon\n        img,\n        svg {\n          display: block;\n          width: px2rem(48px);\n          height: px2rem(48px);\n        }\n\n        // Icon\n        svg {\n          fill: currentColor;\n        }\n      }\n    }\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  // List item\n  &__item {\n    padding: 0 px2rem(12px);\n\n    // Add bottom spacing to last item\n    &:last-child {\n      padding-bottom: px2rem(12px);\n    }\n\n    // 2nd+ level items\n    & & {\n      padding-right: 0;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(12px);\n        padding-left: 0;\n      }\n\n      // Remove bottom spacing for nested items\n      &:last-child {\n        padding-bottom: 0;\n      }\n    }\n  }\n\n  // Link inside item\n  &__link {\n    display: block;\n    margin-top: 0.625em;\n    overflow: hidden;\n    text-overflow: ellipsis;\n    cursor: pointer;\n    transition: color 125ms;\n    scroll-snap-align: start;\n\n    // Hide link to table of contents by default - this will only match the\n    // table of contents inside the drawer below and including tablet portrait\n    html &[for=\"__toc\"] {\n      display: none;\n\n      // Hide table of contents by default\n      & ~ .md-nav {\n        display: none;\n      }\n    }\n\n    // Blurred link\n    &[data-md-state=\"blur\"] {\n      color: var(--md-default-fg-color--light);\n    }\n\n    // Active link\n    .md-nav__item &--active {\n      color: var(--md-typeset-a-color);\n    }\n\n    // Reset active color for nested list titles\n    .md-nav__item--nested > & {\n      color: inherit;\n    }\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      color: var(--md-accent-fg-color);\n    }\n  }\n\n  // Repository containing source\n  &__source {\n    display: none;\n  }\n\n  // [tablet -]: Layered navigation\n  @include break-to-device(tablet) {\n    background-color: var(--md-default-bg-color);\n\n    // Stretch primary navigation to drawer\n    &--primary,\n    &--primary .md-nav {\n      position: absolute;\n      top: 0;\n      right: 0;\n      left: 0;\n      z-index: 1;\n      display: flex;\n      flex-direction: column;\n      height: 100%;\n    }\n\n    // Adjust styles for primary navigation\n    &--primary {\n\n      // List title and item\n      .md-nav__title,\n      .md-nav__item {\n        font-size: px2rem(16px);\n        line-height: 1.5;\n      }\n\n      // List title\n      .md-nav__title {\n        position: relative;\n        height: px2rem(112px);\n        padding: px2rem(60px) px2rem(16px) px2rem(4px);\n        color: var(--md-default-fg-color--light);\n        font-weight: 400;\n        line-height: px2rem(48px);\n        white-space: nowrap;\n        background-color: var(--md-default-fg-color--lightest);\n        cursor: pointer;\n\n        // Navigation icon\n        .md-nav__icon {\n          position: absolute;\n          top: px2rem(8px);\n          left: px2rem(8px);\n          display: block;\n          width: px2rem(24px);\n          height: px2rem(24px);\n          margin: px2rem(4px);\n\n          // Previous navigation item icon\n          &::after {\n            display: block;\n            width: 100%;\n            height: 100%;\n            background-color: currentColor;\n            mask-image: var(--md-nav-icon--prev);\n            mask-repeat: no-repeat;\n            content: \"\";\n          }\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            right: px2rem(8px);\n            left: initial;\n          }\n        }\n\n        // Main lists\n        ~ .md-nav__list {\n          overflow-y: auto;\n          background-color: var(--md-default-bg-color);\n          box-shadow:\n            0 px2rem(1px) 0 var(--md-default-fg-color--lightest) inset;\n          scroll-snap-type: y mandatory;\n          touch-action: pan-y;\n\n          // Remove border for first list item\n          > .md-nav__item:first-child {\n            border-top: 0;\n          }\n        }\n\n        // Site title in main navigation\n        &[for=\"__drawer\"] {\n          position: relative;\n          color: var(--md-primary-bg-color);\n          background-color: var(--md-primary-fg-color);\n\n          // Site logo\n          .md-nav__button {\n            position: absolute;\n            top: px2rem(4px);\n            left: px2rem(4px);\n            display: block;\n            margin: px2rem(4px);\n            padding: px2rem(8px);\n            font-size: px2rem(48px);\n          }\n        }\n      }\n\n      // Adjust for right-to-left languages\n      html [dir=\"rtl\"] & .md-nav__title {\n\n        // Site title in main navigation\n        &[for=\"__drawer\"] .md-nav__button {\n          right: px2rem(4px);\n          left: initial;\n        }\n      }\n\n      // List of items\n      .md-nav__list {\n        flex: 1;\n      }\n\n      // List item\n      .md-nav__item {\n        padding: 0;\n        border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          padding: 0;\n        }\n\n        // Increase spacing to account for icon\n        &--nested > .md-nav__link {\n          padding-right: px2rem(48px);\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            padding-right: px2rem(16px);\n            padding-left: px2rem(48px);\n          }\n        }\n\n        // Active parent item\n        &--active > .md-nav__link {\n          color: var(--md-typeset-a-color);\n\n          // Focused or hovered linl\n          &:focus,\n          &:hover {\n            color: var(--md-accent-fg-color);\n          }\n        }\n      }\n\n      // Link inside item\n      .md-nav__link {\n        position: relative;\n        margin-top: 0;\n        padding: px2rem(12px) px2rem(16px);\n\n        // Navigation icon\n        .md-nav__icon {\n          position: absolute;\n          top: 50%;\n          right: px2rem(12px);\n          width: px2rem(24px);\n          height: px2rem(24px);\n          margin-top: px2rem(-12px);\n          color: inherit;\n          font-size: px2rem(24px);\n\n          // Next navigation item icon\n          &::after {\n            display: block;\n            width: 100%;\n            height: 100%;\n            background-color: currentColor;\n            mask-image: var(--md-nav-icon--next);\n            mask-repeat: no-repeat;\n            content: \"\";\n          }\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            right: initial;\n            left: px2rem(12px);\n          }\n        }\n      }\n\n      // Navigation icon\n      .md-nav__icon {\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n\n          // Flip icon vertically\n          &::after {\n            transform: scale(-1);\n          }\n        }\n      }\n\n      // Table of contents inside navigation\n      .md-nav--secondary {\n\n        // Set links to static to avoid unnecessary layering\n        .md-nav__link {\n          position: static;\n        }\n\n        // Set nested navigation for table of contents to static\n        .md-nav {\n          position: static;\n          background-color: transparent;\n\n          // 3rd level link\n          .md-nav__link {\n            padding-left: px2rem(28px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(28px);\n              padding-left: initial;\n            }\n          }\n\n          // 4th level link\n          .md-nav .md-nav__link {\n            padding-left: px2rem(40px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(40px);\n              padding-left: initial;\n            }\n          }\n\n          // 5th level link\n          .md-nav .md-nav .md-nav__link {\n            padding-left: px2rem(52px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(52px);\n              padding-left: initial;\n            }\n          }\n\n          // 6th level link\n          .md-nav .md-nav .md-nav .md-nav__link {\n            padding-left: px2rem(64px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(64px);\n              padding-left: initial;\n            }\n          }\n        }\n      }\n    }\n\n    // Hide nested navigation by default\n    .md-nav__toggle ~ & {\n      display: flex;\n      transform: translateX(100%);\n      opacity: 0;\n      transition:\n        transform 250ms cubic-bezier(0.8, 0, 0.6, 1),\n        opacity   125ms 50ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(-100%);\n      }\n    }\n\n    // Expand nested navigation, if toggle is checked\n    .md-nav__toggle:checked ~ & {\n      transform: translateX(0);\n      opacity: 1;\n      transition:\n        transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n        opacity   125ms 125ms;\n\n      // Hack: reduce jitter\n      > .md-nav__list {\n        backface-visibility: hidden;\n      }\n    }\n  }\n\n  // [tablet portrait -]: Show table of contents in drawer\n  @include break-to-device(tablet portrait) {\n\n    // Show link to table of contents - higher specificity is necessary to\n    // display the table of contents inside the drawer\n    html &__link[for=\"__toc\"] {\n      display: block;\n      padding-right: px2rem(48px);\n\n      // Hide link to current item\n      + .md-nav__link {\n        display: none;\n      }\n\n      // Table of contents icon\n      .md-icon::after {\n        display: block;\n        width: 100%;\n        height: 100%;\n        mask-image: var(--md-toc-icon);\n        background-color: currentColor;\n        content: \"\";\n      }\n\n      // Show table of contents\n      & ~ .md-nav {\n        display: flex;\n      }\n    }\n\n    // Adjust for right-to-left languages\n    html [dir=\"rtl\"] &__link {\n      padding-right: px2rem(16px);\n      padding-left: px2rem(48px);\n    }\n\n    // Repository containing source\n    &__source {\n      display: block;\n      padding: 0 px2rem(4px);\n      color: var(--md-primary-bg-color);\n      background-color: var(--md-primary-fg-color--dark);\n    }\n  }\n\n  // [tablet landscape +]: Tree-like navigation\n  @include break-from-device(tablet landscape) {\n\n    // List title\n    &--secondary .md-nav__title {\n\n      // Snap to table of contents title\n      &[for=\"__toc\"] {\n        scroll-snap-align: start;\n      }\n\n      // Hide icon\n      .md-nav__icon {\n        display: none;\n      }\n    }\n  }\n\n  // [screen +]: Tree-like navigation\n  @include break-from-device(screen) {\n    transition: max-height 250ms cubic-bezier(0.86, 0, 0.07, 1);\n\n    // List title\n    &--primary .md-nav__title {\n\n      // Snap to site title\n      &[for=\"__drawer\"] {\n        scroll-snap-align: start;\n      }\n\n      // Hide icon\n      .md-nav__icon {\n        display: none;\n      }\n    }\n\n    // Hide nested navigation by default\n    .md-nav__toggle ~ & {\n      display: none;\n    }\n\n    // Show nested navigation, if toggle is checked\n    .md-nav__toggle:checked ~ & {\n      display: block;\n    }\n\n    // Hide titles for nested navigation\n    &__item--nested > .md-nav > &__title {\n      display: none;\n    }\n\n    // Navigation icon\n    &__icon {\n      float: right;\n      width: px2rem(18px);\n      height: px2rem(18px);\n      transition: transform 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n        transform: rotate(180deg);\n      }\n\n      // Inline icon and adjust icon to match font size\n      &::after {\n        display: inline-block;\n        width: 100%;\n        height: 100%;\n        vertical-align: px2rem(-2px);\n        background-color: currentColor;\n        mask-image: var(--md-nav-icon--next);\n        mask-repeat: no-repeat;\n        content: \"\";\n      }\n\n      // Rotate icon for expanded lists\n      .md-nav__item--nested .md-nav__toggle:checked ~ .md-nav__link & {\n        transform: rotate(90deg);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) search\n$md-toggle__search--checked:\n  \"[data-md-toggle=\\\"search\\\"]:checked ~ .md-header\";\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Search container\n.md-search {\n  position: relative;\n\n  // Hide search, if JavaScript is not available.\n  .no-js & {\n    display: none;\n  }\n\n  // [tablet landscape +]: Header-embedded search\n  @include break-from-device(tablet landscape) {\n    padding: px2rem(4px) 0;\n  }\n\n  // Search modal overlay\n  &__overlay {\n    z-index: 1;\n    opacity: 0;\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      position: absolute;\n      top: px2rem(4px);\n      left: px2rem(-44px);\n      width: px2rem(40px);\n      height: px2rem(40px);\n      overflow: hidden;\n      background-color: var(--md-default-bg-color);\n      border-radius: px2rem(20px);\n      transform-origin: center;\n      transition:\n        transform 300ms 100ms,\n        opacity   200ms 200ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(-44px);\n        left: initial;\n      }\n\n      // Expanded overlay\n      #{$md-toggle__search--checked} & {\n        opacity: 1;\n        transition:\n          transform 400ms,\n          opacity   100ms;\n      }\n    }\n\n    // Set scale factors\n    #{$md-toggle__search--checked} & {\n\n      // [mobile portrait -]: Scale up 45 times\n      @include break-to-device(mobile portrait) {\n        transform: scale(45);\n      }\n\n      // [mobile landscape]: Scale up 60 times\n      @include break-at-device(mobile landscape) {\n        transform: scale(60);\n      }\n\n      // [tablet portrait]: Scale up 75 times\n      @include break-at-device(tablet portrait) {\n        transform: scale(75);\n      }\n    }\n\n    // [tablet landscape +]: Overlay for better focus on search\n    @include break-from-device(tablet landscape) {\n      position: fixed;\n      top: 0;\n      left: 0;\n      width: 0;\n      height: 0;\n      background-color: hsla(0, 0%, 0%, 0.54);\n      cursor: pointer;\n      transition:\n        width     0ms 250ms,\n        height    0ms 250ms,\n        opacity 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: 0;\n        left: initial;\n      }\n\n      // Expanded overlay\n      #{$md-toggle__search--checked} & {\n        width: 100%;\n        height: 100%;\n        opacity: 1;\n        transition:\n          width     0ms,\n          height    0ms,\n          opacity 250ms;\n      }\n    }\n  }\n\n  // Search modal wrapper\n  &__inner {\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n\n    // [tablet portrait -]: Put search modal off-canvas by default\n    @include break-to-device(tablet portrait) {\n      position: fixed;\n      top: 0;\n      left: 100%;\n      z-index: 2;\n      width: 100%;\n      height: 100%;\n      transform: translateX(5%);\n      opacity: 0;\n      transition:\n        right       0ms 300ms,\n        left        0ms 300ms,\n        transform 150ms 150ms cubic-bezier(0.4, 0, 0.2, 1),\n        opacity   150ms 150ms;\n\n      // Active search modal\n      #{$md-toggle__search--checked} & {\n        left: 0;\n        transform: translateX(0);\n        opacity: 1;\n        transition:\n          right       0ms   0ms,\n          left        0ms   0ms,\n          transform 150ms 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n          opacity   150ms 150ms;\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: 0;\n          left: initial;\n        }\n      }\n\n      // Adjust for right-to-left languages\n      html [dir=\"rtl\"] & {\n        right: 100%;\n        left: initial;\n        transform: translateX(-5%);\n      }\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      position: relative;\n      float: right;\n      width: px2rem(234px);\n      padding: px2rem(2px) 0;\n      transition: width 250ms cubic-bezier(0.1, 0.7, 0.1, 1);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n      }\n    }\n\n    // Set maximum width\n    #{$md-toggle__search--checked} & {\n\n      // [tablet landscape]: Do not overlay title\n      @include break-at-device(tablet landscape) {\n        width: px2rem(468px);\n      }\n\n      // [screen +]: Match content width\n      @include break-from-device(screen) {\n        width: px2rem(688px);\n      }\n    }\n  }\n\n  // Search form\n  &__form {\n    position: relative;\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      border-radius: px2rem(2px);\n    }\n  }\n\n  // Search input\n  &__input {\n    position: relative;\n    z-index: 2;\n    padding: 0 px2rem(44px) 0 px2rem(72px);\n    text-overflow: ellipsis;\n    background-color: var(--md-default-bg-color);\n    transition:\n      color            250ms,\n      background-color 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding: 0 px2rem(72px) 0 px2rem(44px);\n    }\n\n    // Transition on placeholder\n    &::placeholder {\n      transition: color 250ms;\n    }\n\n    // Placeholder and icon color in active state\n    ~ .md-search__icon,\n    &::placeholder {\n      color: var(--md-default-fg-color--light);\n    }\n\n    // Remove the \"x\" rendered by Internet Explorer\n    &::-ms-clear {\n      display: none;\n    }\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      width: 100%;\n      height: px2rem(48px);\n      font-size: px2rem(18px);\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      width: 100%;\n      height: px2rem(36px);\n      padding-left: px2rem(44px);\n      color: inherit;\n      font-size: px2rem(16px);\n      background-color: hsla(0, 0%, 0%, 0.26);\n      border-radius: px2rem(2px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n      }\n\n      // Search icon color\n      + .md-search__icon {\n        color: var(--md-primary-bg-color);\n      }\n\n      // Placeholder color\n      &::placeholder {\n        color: var(--md-primary-bg-color--light);\n      }\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 100%, 0.12);\n      }\n\n      // Set light background on active search field\n      #{$md-toggle__search--checked} & {\n        color: var(--md-default-fg-color);\n        text-overflow: clip;\n        background-color: var(--md-default-bg-color);\n        border-radius: px2rem(2px) px2rem(2px) 0 0;\n\n        // Search icon and placeholder color in active state\n        + .md-search__icon,\n        &::placeholder {\n          color: var(--md-default-fg-color--light);\n        }\n      }\n    }\n  }\n\n  // Search icon\n  &__icon {\n    position: absolute;\n    z-index: 2;\n    width: px2rem(24px);\n    height: px2rem(24px);\n    cursor: pointer;\n    transition:\n      color   250ms,\n      opacity 250ms;\n\n    // Hovered icon\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Search icon\n    &[for=\"__search\"] {\n      top: px2rem(6px);\n      left: px2rem(10px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(10px);\n        left: initial;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n\n      // [tablet portrait -]: Full-screen search bar\n      @include break-to-device(tablet portrait) {\n        top: px2rem(12px);\n        left: px2rem(16px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: px2rem(16px);\n          left: initial;\n        }\n\n        // Hide the magnifying glass (1st icon)\n        svg:first-child {\n          display: none;\n        }\n      }\n\n      // [tablet landscape +]: Header-embedded search\n      @include break-from-device(tablet landscape) {\n        pointer-events: none;\n\n        // Hide the arrow (2nd icon)\n        svg:last-child {\n          display: none;\n        }\n      }\n    }\n\n    // Reset button\n    &[type=\"reset\"] {\n      top: px2rem(6px);\n      right: px2rem(10px);\n      transform: scale(0.75);\n      opacity: 0;\n      transition:\n        transform 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: initial;\n        left: px2rem(10px);\n      }\n\n      // [tablet portrait -]: Full-screen search bar\n      @include break-to-device(tablet portrait) {\n        top: px2rem(12px);\n        right: px2rem(16px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: initial;\n          left: px2rem(16px);\n        }\n      }\n\n      // Show reset button if search is active and input non-empty\n      #{$md-toggle__search--checked}\n      .md-search__input:not(:placeholder-shown) ~ & {\n        transform: scale(1);\n        opacity: 1;\n        pointer-events: initial;\n\n        // Hovered icon\n        &:hover {\n          opacity: 0.7;\n        }\n      }\n    }\n  }\n\n  // Search output container\n  &__output {\n    position: absolute;\n    z-index: 1;\n    width: 100%;\n    overflow: hidden;\n    border-radius: 0 0 px2rem(2px) px2rem(2px);\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      top: px2rem(48px);\n      bottom: 0;\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      top: px2rem(38px);\n      opacity: 0;\n      transition: opacity 400ms;\n\n      // Show search output in active state\n      #{$md-toggle__search--checked} & {\n        @include z-depth(6);\n\n        opacity: 1;\n      }\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    height: 100%;\n    overflow-y: auto;\n    background-color: var(--md-default-bg-color);\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n    scroll-snap-type: y mandatory;\n    touch-action: pan-y;\n\n    // Mitigiate excessive repaints on non-retina devices\n    @media (max-resolution: 1dppx) {\n      transform: translateZ(0);\n    }\n\n    // [tablet landscape]: Set absolute width to omit unnecessary reflow\n    @include break-at-device(tablet landscape) {\n      width: px2rem(468px);\n    }\n\n    // [screen +]: Set absolute width to omit unnecessary reflow\n    @include break-from-device(screen) {\n      width: px2rem(688px);\n    }\n\n    // [tablet landscape +]: Limit height to viewport\n    @include break-from-device(tablet landscape) {\n      max-height: 0;\n      // Override Firefox scrollbar style\n      scrollbar-width: thin;\n      scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n      // Expand in active state\n      #{$md-toggle__search--checked} & {\n        max-height: 75vh;\n      }\n\n      // Override Firefox scrollbar hover color\n      &:hover {\n        scrollbar-color: var(--md-accent-fg-color) transparent;\n      }\n\n      // Override native scrollbar styles\n      &::-webkit-scrollbar {\n        width: px2rem(4px);\n        height: px2rem(4px);\n      }\n\n      // Scrollbar thumb\n      &::-webkit-scrollbar-thumb {\n        background-color: var(--md-default-fg-color--lighter);\n\n        // Hovered scrollbar thumb\n        &:hover {\n          background-color: var(--md-accent-fg-color);\n        }\n      }\n    }\n  }\n}\n\n// Search result\n.md-search-result {\n  color: var(--md-default-fg-color);\n  word-break: break-word;\n\n  // Search metadata\n  &__meta {\n    padding: 0 px2rem(16px);\n    color: var(--md-default-fg-color--light);\n    font-size: px2rem(12.8px);\n    line-height: px2rem(36px);\n    background-color: var(--md-default-fg-color--lightest);\n    scroll-snap-align: start;\n\n    // [tablet landscape +]: Increase left indent\n    @include break-from-device(tablet landscape) {\n      padding-left: px2rem(44px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n        padding-left: initial;\n      }\n    }\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  // List item\n  &__item {\n    box-shadow: 0 px2rem(-1px) 0 var(--md-default-fg-color--lightest);\n\n    // No border for first item\n    &:first-child {\n      box-shadow: none;\n    }\n  }\n\n  // Link inside item\n  &__link {\n    display: block;\n    outline: none;\n    transition: background 250ms;\n    scroll-snap-align: start;\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      background-color: var(--md-accent-fg-color--transparent);\n\n      // Slightly transparent icon\n      .md-search-result__article::before {\n        opacity: 0.7;\n      }\n    }\n\n    // Add a little spacing on the teaser of the last link\n    &:last-child .md-search-result__teaser {\n      margin-bottom: px2rem(12px);\n    }\n  }\n\n  // Article - document or section\n  &__article {\n    position: relative;\n    padding: 0 px2rem(16px);\n    overflow: hidden;\n\n    // [tablet landscape +]: Increase left indent\n    @include break-from-device(tablet landscape) {\n      padding-left: px2rem(44px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n        padding-left: px2rem(16px);\n      }\n    }\n\n    // Document\n    &--document {\n\n      // Title\n      .md-search-result__title {\n        margin: px2rem(11px) 0;\n        font-weight: 400;\n        font-size: px2rem(16px);\n        line-height: 1.4;\n      }\n    }\n  }\n\n  // Search result icon\n  &__icon {\n    position: absolute;\n    left: 0;\n    margin: px2rem(2px);\n    padding: px2rem(8px);\n    color: var(--md-default-fg-color--light);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      right: 0;\n      left: initial;\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // [tablet portrait -]: Hide page icon\n    @include break-to-device(tablet portrait) {\n      display: none;\n    }\n  }\n\n  // Title\n  &__title {\n    margin: 0.5em 0;\n    font-weight: 700;\n    font-size: px2rem(12.8px);\n    line-height: 1.4;\n  }\n\n  // stylelint-disable value-no-vendor-prefix, property-no-vendor-prefix\n\n  // Teaser\n  &__teaser {\n    display: -webkit-box;\n    max-height: px2rem(33px);\n    margin: 0.5em 0;\n    overflow: hidden;\n    color: var(--md-default-fg-color--light);\n    font-size: px2rem(12.8px);\n    line-height: 1.4;\n    text-overflow: ellipsis;\n    -webkit-box-orient: vertical;\n    -webkit-line-clamp: 2;\n\n    // [mobile -]: Increase number of lines\n    @include break-to-device(mobile) {\n      max-height: px2rem(50px);\n      -webkit-line-clamp: 3;\n    }\n\n    // [tablet landscape]: Increase number of lines\n    @include break-at-device(tablet landscape) {\n      max-height: px2rem(50px);\n      -webkit-line-clamp: 3;\n    }\n  }\n\n  // stylelint-enable value-no-vendor-prefix, property-no-vendor-prefix\n\n  // Search term highlighting\n  em {\n    font-weight: 700;\n    font-style: normal;\n    text-decoration: underline;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) drawer\n$md-toggle__drawer--checked:\n  \"[data-md-toggle=\\\"drawer\\\"]:checked ~ .md-container\";\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// Activate scroll snapping with delay\n@keyframes md-sidebar__scrollwrap--hack {\n  0%, 99% {\n    scroll-snap-type: none;\n  }\n\n  100% {\n    scroll-snap-type: y mandatory;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Sidebar container\n.md-sidebar {\n  position: sticky;\n  top: px2rem(48px);\n  align-self: flex-start;\n  width: px2rem(242px);\n  padding: px2rem(24px) 0;\n  overflow: hidden;\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // [tablet -]: Convert navigation to drawer\n  @include break-to-device(tablet) {\n\n    // Render primary sidebar as a slideout container\n    &--primary {\n      position: fixed;\n      top: 0;\n      left: px2rem(-242px);\n      z-index: 3;\n      width: px2rem(242px);\n      height: 100%;\n      background-color: var(--md-default-bg-color);\n      transform: translateX(0);\n      transition:\n        transform  250ms cubic-bezier(0.4, 0, 0.2, 1),\n        box-shadow 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(-242px);\n        left: initial;\n      }\n\n      // Expanded drawer\n      #{$md-toggle__drawer--checked} & {\n        @include z-depth(8);\n\n        transform: translateX(px2rem(242px));\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          transform: translateX(px2rem(-242px));\n        }\n      }\n\n      // Hide overflow for nested navigation\n      .md-sidebar__scrollwrap {\n        overflow: hidden;\n      }\n    }\n  }\n\n  // Secondary sidebar with table of contents\n  &--secondary {\n    display: none;\n    order: 2;\n\n    // [tablet landscape +]: Show table of contents next to body copy\n    @include break-from-device(tablet landscape) {\n      display: block;\n\n      // Ensure smooth scrolling on iOS\n      .md-sidebar__scrollwrap {\n        touch-action: pan-y;\n      }\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    max-height: 100%;\n    margin: 0 px2rem(4px);\n    overflow-y: auto;\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n    // Override Firefox scrollbar style\n    scrollbar-width: thin;\n    scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n    // Hack: Chrome 81+ exhibits a strange bug, where it scrolls the container\n    // to the bottom if `scroll-snap-type` is set on the initial render. For\n    // this reason, we use an animation to set scroll snaping with a slight\n    // delay, which seems to fix the issue (#1667).\n    .js & {\n      animation: md-sidebar__scrollwrap--hack 400ms forwards;\n    }\n\n    // [tablet -]: Adjust margins\n    @include break-to-device(tablet) {\n\n      // Stretch scrollwrap for primary sidebar\n      .md-sidebar--primary & {\n        position: absolute;\n        top: 0;\n        right: 0;\n        bottom: 0;\n        left: 0;\n        margin: 0;\n        scroll-snap-type: none;\n      }\n    }\n\n    // Override Firefox scrollbar hover color\n    &:hover {\n      scrollbar-color: var(--md-accent-fg-color) transparent;\n    }\n\n    // Override native scrollbar styles\n    &::-webkit-scrollbar {\n      width: px2rem(4px);\n      height: px2rem(4px);\n    }\n\n    // Scrollbar thumb\n    &::-webkit-scrollbar-thumb {\n      background-color: var(--md-default-fg-color--lighter);\n\n      // Hovered scrollbar thumb\n      &:hover {\n        background-color: var(--md-accent-fg-color);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// Show source facts\n@keyframes md-source__facts--done {\n  0% {\n    height: 0;\n  }\n\n  100% {\n    height: px2rem(13px);\n  }\n}\n\n// Show source fact\n@keyframes md-source__fact--done {\n  0% {\n    transform: translateY(100%);\n    opacity: 0;\n  }\n\n  50% {\n    opacity: 0;\n  }\n\n  100% {\n    transform: translateY(0%);\n    opacity: 1;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Source container\n.md-source {\n  display: block;\n  font-size: px2rem(13px);\n  line-height: 1.2;\n  white-space: nowrap;\n  // Hack: reduce jitter\n  backface-visibility: hidden;\n  transition: opacity 250ms;\n\n  // Hovered source container\n  &:hover {\n    opacity: 0.7;\n  }\n\n  // Repository platform icon\n  &__icon {\n    display: inline-block;\n    width: px2rem(48px);\n    height: px2rem(48px);\n    vertical-align: middle;\n\n    // Align with margin only (as opposed to normal button alignment)\n    svg {\n      margin-top: px2rem(12px);\n      margin-left: px2rem(12px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(12px);\n        margin-left: initial;\n      }\n    }\n\n    // Correct alignment, if icon is present\n    + .md-source__repository {\n      margin-left: px2rem(-40px);\n      padding-left: px2rem(40px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(-40px);\n        margin-left: initial;\n        padding-right: px2rem(40px);\n        padding-left: initial;\n      }\n    }\n  }\n\n  // Repository name\n  &__repository {\n    display: inline-block;\n    max-width: calc(100% - #{px2rem(24px)});\n    margin-left: px2rem(12px);\n    overflow: hidden;\n    font-weight: 700;\n    text-overflow: ellipsis;\n    vertical-align: middle;\n  }\n\n  // Source facts (statistics etc.)\n  &__facts {\n    margin: 0;\n    padding: 0;\n    overflow: hidden;\n    font-weight: 700;\n    font-size: px2rem(11px);\n    list-style-type: none;\n    opacity: 0.75;\n\n    // Show after the data was loaded\n    [data-md-state=\"done\"] & {\n      animation: md-source__facts--done 250ms ease-in;\n    }\n  }\n\n  // Fact\n  &__fact {\n    float: left;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      float: right;\n    }\n\n    // Show after the data was loaded\n    [data-md-state=\"done\"] & {\n      animation: md-source__fact--done 400ms ease-out;\n    }\n\n    // Middle dot before fact\n    &::before {\n      margin: 0 px2rem(2px);\n      content: \"\\00B7\";\n    }\n\n    // Remove middle dot on first fact\n    &:first-child::before {\n      display: none;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Tabs with outline\n.md-tabs {\n  width: 100%;\n  overflow: auto;\n  color: var(--md-primary-bg-color);\n  background-color: var(--md-primary-fg-color);\n  transition: background 250ms;\n\n  // Omit transitions, in case JavaScript is not available\n  .no-js & {\n    transition: none;\n  }\n\n  // [tablet -]: Hide tabs for tablet and below, as they don't make any sense\n  @include break-to-device(tablet) {\n    display: none;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    margin-left: px2rem(4px);\n    padding: 0;\n    white-space: nowrap;\n    list-style: none;\n    contain: content;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2rem(4px);\n      margin-left: initial;\n    }\n  }\n\n  // List item\n  &__item {\n    display: inline-block;\n    height: px2rem(48px);\n    padding-right: px2rem(12px);\n    padding-left: px2rem(12px);\n  }\n\n  // Link inside item - could be defined as block elements and aligned via\n  // line height, but this would imply more repaints when scrolling\n  &__link {\n    display: block;\n    margin-top: px2rem(16px);\n    font-size: px2rem(14px);\n    opacity: 0.7;\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   250ms;\n\n    // Omit transitions, in case JavaScript is not available\n    .no-js & {\n      transition: none;\n    }\n\n    // Active or hovered link\n    &--active,\n    &:hover {\n      color: inherit;\n      opacity: 1;\n    }\n\n    // Delay transitions by a small amount\n    @for $i from 2 through 16 {\n      .md-tabs__item:nth-child(#{$i}) & {\n        transition-delay: 20ms * ($i - 1);\n      }\n    }\n  }\n\n  // Fade-out tabs background upon scrolling\n  &[data-md-state=\"hidden\"] {\n    pointer-events: none;\n\n    // Hide tabs upon scrolling - disable transition to minimizes repaints\n    // while scrolling down, while scrolling up seems to be okay\n    .md-tabs__link {\n      transform: translateY(50%);\n      opacity: 0;\n      transition:\n        color     250ms,\n        transform   0ms 400ms,\n        opacity   100ms;\n    }\n  }\n\n  // [screen +]: Adjust main navigation styles\n  @include break-from-device(screen) {\n\n    // Hide 1st level nested items, as they are listed in the tabs\n    ~ .md-main .md-nav--primary > .md-nav__list > .md-nav__item--nested {\n      display: none;\n    }\n\n    // Active tab\n    &--active ~ .md-main {\n\n      // Adjust 1st level styles\n      .md-nav--primary {\n\n        // Show title and remove spacing\n        .md-nav__title {\n          display: block;\n          padding: 0 px2rem(12px);\n          pointer-events: none;\n          scroll-snap-align: start;\n\n          // Hide site title\n          &[for=\"__drawer\"] {\n            display: none;\n          }\n        }\n\n        // Hide 1st level items\n        > .md-nav__list > .md-nav__item {\n          display: none;\n\n          // Show 1st level active nested items\n          &--active {\n            display: block;\n            padding: 0;\n\n            // Hide nested links\n            > .md-nav__link {\n              display: none;\n            }\n          }\n        }\n      }\n\n      // Always expand nested navigation on 2nd level\n      .md-nav[data-md-level=\"1\"] {\n        // Hack: Always show active navigation tab on breakpoint screen, despite\n        // of checkbox being checked or not. Fixes #1655.\n        display: block;\n\n        // Remove spacing on 2nd level items\n        > .md-nav__list > .md-nav__item {\n          padding: 0 px2rem(12px);\n\n          // Add bottom spacing to last item\n          &:last-child {\n            padding-bottom: px2rem(12px);\n\n            // Remove bottom spacing for nested items\n            .md-nav__item {\n              padding-bottom: 0;\n            }\n          }\n        }\n\n        // Hide titles from 2nd level on\n        .md-nav .md-nav__title {\n          display: none;\n        }\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Admonition flavours\n///\n$admonitions: (\n  note:                       pencil $clr-blue-a200,\n  abstract summary tldr:      text-subject $clr-light-blue-a400,\n  info todo:                  information $clr-cyan-a700,\n  tip hint important:         fire $clr-teal-a700,\n  success check done:         check-circle $clr-green-a700,\n  question help faq:          help-circle $clr-light-green-a700,\n  warning caution attention:  alert $clr-orange-a400,\n  failure fail missing:       close-circle $clr-red-a200,\n  danger error:               flash-circle $clr-red-a400,\n  bug:                        bug $clr-pink-a400,\n  example:                    format-list-numbered $clr-deep-purple-a400,\n  quote cite:                 format-quote-close $clr-grey\n) !default;\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  @each $names, $props in $admonitions {\n    $name: nth($names, 1);\n    $icon: nth($props, 1);\n\n    // Inline icon through PostCSS in Webpack\n    --md-admonition-icon--#{$name}: svg-load(\"@mdi/svg/svg/#{$icon}.svg\");\n  }\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Admonition extension\n  .admonition {\n    margin: px2em(20px, 12.8px) 0;\n    padding: 0 px2rem(12px);\n    overflow: hidden;\n    color: var(--md-admonition-fg-color);\n    font-size: px2rem(12.8px);\n    page-break-inside: avoid;\n    background-color: var(--md-admonition-bg-color);\n    border-left: px2rem(4px) solid $clr-blue-a200;\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n      0 0           px2rem(1px)  hsla(0, 0%, 0%, 0.1);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      border-right: px2rem(4px) solid $clr-blue-a200;\n      border-left: none;\n    }\n\n    // Hack: omit rendering errors for print\n    @media print {\n      box-shadow: none;\n    }\n\n    // Adjust spacing on last element\n    html & > :last-child {\n      margin-bottom: px2rem(12px);\n    }\n\n    // Adjust margin for nested admonition blocks\n    .admonition {\n      margin: 1em 0;\n    }\n\n    // Wrapper for scrolling on overflow\n    .md-typeset__scrollwrap {\n      margin: 1em px2rem(-12px);\n    }\n\n    // Data table wrapper, in case JavaScript is available\n    .md-typeset__table {\n      padding: 0 px2rem(12px);\n    }\n\n    // Tabbed block container is the only child\n    > .tabbed-set:only-child {\n      margin-top: 0;\n    }\n  }\n\n  // Admonition title\n  .admonition-title {\n    position: relative;\n    margin: 0 px2rem(-12px) 0 px2rem(-16px);\n    padding: px2rem(8px) px2rem(12px) px2rem(8px) px2rem(44px);\n    font-weight: 700;\n    background-color: transparentize($clr-blue-a200, 0.9);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin: 0 px2rem(-16px) 0 px2rem(-12px);\n      padding: px2rem(8px) px2rem(40px) px2rem(8px) px2rem(12px);\n    }\n\n    // Reset spacing, if title is the only element\n    html &:last-child {\n      margin-bottom: 0;\n    }\n\n    // Admonition icon\n    &::before {\n      position: absolute;\n      left: px2rem(16px);\n      width: px2rem(20px);\n      height: px2rem(20px);\n      background-color: $clr-blue-a200;\n      mask-image: var(--md-admonition-icon--note);\n      mask-repeat: no-repeat;\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(16px);\n        left: initial;\n      }\n    }\n\n    // Reset code inside admonition titles\n    code {\n      margin: initial;\n      padding: initial;\n      color: currentColor;\n      background-color: transparent;\n      border-radius: initial;\n      box-shadow: none;\n    }\n\n    // Tabbed block container is the last child\n    + .tabbed-set:last-child {\n      margin-top: 0;\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: flavours\n// ----------------------------------------------------------------------------\n\n@each $names, $props in $admonitions {\n  $name: nth($names, 1);\n  $tint: nth($props, 2);\n\n  // Admonition base class\n  .md-typeset .admonition.#{$name} {\n    border-color: $tint;\n  }\n\n  // Admonition title\n  .md-typeset .#{$name} > .admonition-title {\n    background-color: transparentize($tint, 0.9);\n\n    // Admonition icon\n    &::before {\n      background-color: $tint;\n      mask-image: var(--md-admonition-icon--#{$name});\n      mask-repeat: no-repeat;\n    }\n  }\n\n  // Define synonyms for base class\n  @if length($names) > 1 {\n    @for $n from 2 through length($names) {\n      .#{nth($names, $n)} {\n        @extend .#{$name};\n      }\n    }\n  }\n}\n","// ==========================================================================\n//\n// Name:        UI Color Palette\n// Description: The color palette of material design.\n// Version:     2.3.1\n//\n// Author:      Denis Malinochkin\n// Git:         https://github.com/mrmlnc/material-color\n//\n// twitter:     @mrmlnc\n//\n// ==========================================================================\n\n\n//\n// List of base colors\n//\n\n// $clr-red\n// $clr-pink\n// $clr-purple\n// $clr-deep-purple\n// $clr-indigo\n// $clr-blue\n// $clr-light-blue\n// $clr-cyan\n// $clr-teal\n// $clr-green\n// $clr-light-green\n// $clr-lime\n// $clr-yellow\n// $clr-amber\n// $clr-orange\n// $clr-deep-orange\n// $clr-brown\n// $clr-grey\n// $clr-blue-grey\n// $clr-black\n// $clr-white\n\n\n//\n// Red\n//\n\n$clr-red-list: (\n  \"base\": #f44336,\n  \"50\":   #ffebee,\n  \"100\":  #ffcdd2,\n  \"200\":  #ef9a9a,\n  \"300\":  #e57373,\n  \"400\":  #ef5350,\n  \"500\":  #f44336,\n  \"600\":  #e53935,\n  \"700\":  #d32f2f,\n  \"800\":  #c62828,\n  \"900\":  #b71c1c,\n  \"a100\": #ff8a80,\n  \"a200\": #ff5252,\n  \"a400\": #ff1744,\n  \"a700\": #d50000\n);\n\n$clr-red:      map-get($clr-red-list, \"base\");\n\n$clr-red-50:   map-get($clr-red-list, \"50\");\n$clr-red-100:  map-get($clr-red-list, \"100\");\n$clr-red-200:  map-get($clr-red-list, \"200\");\n$clr-red-300:  map-get($clr-red-list, \"300\");\n$clr-red-400:  map-get($clr-red-list, \"400\");\n$clr-red-500:  map-get($clr-red-list, \"500\");\n$clr-red-600:  map-get($clr-red-list, \"600\");\n$clr-red-700:  map-get($clr-red-list, \"700\");\n$clr-red-800:  map-get($clr-red-list, \"800\");\n$clr-red-900:  map-get($clr-red-list, \"900\");\n$clr-red-a100: map-get($clr-red-list, \"a100\");\n$clr-red-a200: map-get($clr-red-list, \"a200\");\n$clr-red-a400: map-get($clr-red-list, \"a400\");\n$clr-red-a700: map-get($clr-red-list, \"a700\");\n\n\n//\n// Pink\n//\n\n$clr-pink-list: (\n  \"base\": #e91e63,\n  \"50\":   #fce4ec,\n  \"100\":  #f8bbd0,\n  \"200\":  #f48fb1,\n  \"300\":  #f06292,\n  \"400\":  #ec407a,\n  \"500\":  #e91e63,\n  \"600\":  #d81b60,\n  \"700\":  #c2185b,\n  \"800\":  #ad1457,\n  \"900\":  #880e4f,\n  \"a100\": #ff80ab,\n  \"a200\": #ff4081,\n  \"a400\": #f50057,\n  \"a700\": #c51162\n);\n\n$clr-pink:      map-get($clr-pink-list, \"base\");\n\n$clr-pink-50:   map-get($clr-pink-list, \"50\");\n$clr-pink-100:  map-get($clr-pink-list, \"100\");\n$clr-pink-200:  map-get($clr-pink-list, \"200\");\n$clr-pink-300:  map-get($clr-pink-list, \"300\");\n$clr-pink-400:  map-get($clr-pink-list, \"400\");\n$clr-pink-500:  map-get($clr-pink-list, \"500\");\n$clr-pink-600:  map-get($clr-pink-list, \"600\");\n$clr-pink-700:  map-get($clr-pink-list, \"700\");\n$clr-pink-800:  map-get($clr-pink-list, \"800\");\n$clr-pink-900:  map-get($clr-pink-list, \"900\");\n$clr-pink-a100: map-get($clr-pink-list, \"a100\");\n$clr-pink-a200: map-get($clr-pink-list, \"a200\");\n$clr-pink-a400: map-get($clr-pink-list, \"a400\");\n$clr-pink-a700: map-get($clr-pink-list, \"a700\");\n\n\n//\n// Purple\n//\n\n$clr-purple-list: (\n  \"base\": #9c27b0,\n  \"50\":   #f3e5f5,\n  \"100\":  #e1bee7,\n  \"200\":  #ce93d8,\n  \"300\":  #ba68c8,\n  \"400\":  #ab47bc,\n  \"500\":  #9c27b0,\n  \"600\":  #8e24aa,\n  \"700\":  #7b1fa2,\n  \"800\":  #6a1b9a,\n  \"900\":  #4a148c,\n  \"a100\": #ea80fc,\n  \"a200\": #e040fb,\n  \"a400\": #d500f9,\n  \"a700\": #aa00ff\n);\n\n$clr-purple:      map-get($clr-purple-list, \"base\");\n\n$clr-purple-50:   map-get($clr-purple-list, \"50\");\n$clr-purple-100:  map-get($clr-purple-list, \"100\");\n$clr-purple-200:  map-get($clr-purple-list, \"200\");\n$clr-purple-300:  map-get($clr-purple-list, \"300\");\n$clr-purple-400:  map-get($clr-purple-list, \"400\");\n$clr-purple-500:  map-get($clr-purple-list, \"500\");\n$clr-purple-600:  map-get($clr-purple-list, \"600\");\n$clr-purple-700:  map-get($clr-purple-list, \"700\");\n$clr-purple-800:  map-get($clr-purple-list, \"800\");\n$clr-purple-900:  map-get($clr-purple-list, \"900\");\n$clr-purple-a100: map-get($clr-purple-list, \"a100\");\n$clr-purple-a200: map-get($clr-purple-list, \"a200\");\n$clr-purple-a400: map-get($clr-purple-list, \"a400\");\n$clr-purple-a700: map-get($clr-purple-list, \"a700\");\n\n\n//\n// Deep purple\n//\n\n$clr-deep-purple-list: (\n  \"base\": #673ab7,\n  \"50\":   #ede7f6,\n  \"100\":  #d1c4e9,\n  \"200\":  #b39ddb,\n  \"300\":  #9575cd,\n  \"400\":  #7e57c2,\n  \"500\":  #673ab7,\n  \"600\":  #5e35b1,\n  \"700\":  #512da8,\n  \"800\":  #4527a0,\n  \"900\":  #311b92,\n  \"a100\": #b388ff,\n  \"a200\": #7c4dff,\n  \"a400\": #651fff,\n  \"a700\": #6200ea\n);\n\n$clr-deep-purple:      map-get($clr-deep-purple-list, \"base\");\n\n$clr-deep-purple-50:   map-get($clr-deep-purple-list, \"50\");\n$clr-deep-purple-100:  map-get($clr-deep-purple-list, \"100\");\n$clr-deep-purple-200:  map-get($clr-deep-purple-list, \"200\");\n$clr-deep-purple-300:  map-get($clr-deep-purple-list, \"300\");\n$clr-deep-purple-400:  map-get($clr-deep-purple-list, \"400\");\n$clr-deep-purple-500:  map-get($clr-deep-purple-list, \"500\");\n$clr-deep-purple-600:  map-get($clr-deep-purple-list, \"600\");\n$clr-deep-purple-700:  map-get($clr-deep-purple-list, \"700\");\n$clr-deep-purple-800:  map-get($clr-deep-purple-list, \"800\");\n$clr-deep-purple-900:  map-get($clr-deep-purple-list, \"900\");\n$clr-deep-purple-a100: map-get($clr-deep-purple-list, \"a100\");\n$clr-deep-purple-a200: map-get($clr-deep-purple-list, \"a200\");\n$clr-deep-purple-a400: map-get($clr-deep-purple-list, \"a400\");\n$clr-deep-purple-a700: map-get($clr-deep-purple-list, \"a700\");\n\n\n//\n// Indigo\n//\n\n$clr-indigo-list: (\n  \"base\": #3f51b5,\n  \"50\":   #e8eaf6,\n  \"100\":  #c5cae9,\n  \"200\":  #9fa8da,\n  \"300\":  #7986cb,\n  \"400\":  #5c6bc0,\n  \"500\":  #3f51b5,\n  \"600\":  #3949ab,\n  \"700\":  #303f9f,\n  \"800\":  #283593,\n  \"900\":  #1a237e,\n  \"a100\": #8c9eff,\n  \"a200\": #536dfe,\n  \"a400\": #3d5afe,\n  \"a700\": #304ffe\n);\n\n$clr-indigo:      map-get($clr-indigo-list, \"base\");\n\n$clr-indigo-50:   map-get($clr-indigo-list, \"50\");\n$clr-indigo-100:  map-get($clr-indigo-list, \"100\");\n$clr-indigo-200:  map-get($clr-indigo-list, \"200\");\n$clr-indigo-300:  map-get($clr-indigo-list, \"300\");\n$clr-indigo-400:  map-get($clr-indigo-list, \"400\");\n$clr-indigo-500:  map-get($clr-indigo-list, \"500\");\n$clr-indigo-600:  map-get($clr-indigo-list, \"600\");\n$clr-indigo-700:  map-get($clr-indigo-list, \"700\");\n$clr-indigo-800:  map-get($clr-indigo-list, \"800\");\n$clr-indigo-900:  map-get($clr-indigo-list, \"900\");\n$clr-indigo-a100: map-get($clr-indigo-list, \"a100\");\n$clr-indigo-a200: map-get($clr-indigo-list, \"a200\");\n$clr-indigo-a400: map-get($clr-indigo-list, \"a400\");\n$clr-indigo-a700: map-get($clr-indigo-list, \"a700\");\n\n\n//\n// Blue\n//\n\n$clr-blue-list: (\n  \"base\": #2196f3,\n  \"50\":   #e3f2fd,\n  \"100\":  #bbdefb,\n  \"200\":  #90caf9,\n  \"300\":  #64b5f6,\n  \"400\":  #42a5f5,\n  \"500\":  #2196f3,\n  \"600\":  #1e88e5,\n  \"700\":  #1976d2,\n  \"800\":  #1565c0,\n  \"900\":  #0d47a1,\n  \"a100\": #82b1ff,\n  \"a200\": #448aff,\n  \"a400\": #2979ff,\n  \"a700\": #2962ff\n);\n\n$clr-blue:      map-get($clr-blue-list, \"base\");\n\n$clr-blue-50:   map-get($clr-blue-list, \"50\");\n$clr-blue-100:  map-get($clr-blue-list, \"100\");\n$clr-blue-200:  map-get($clr-blue-list, \"200\");\n$clr-blue-300:  map-get($clr-blue-list, \"300\");\n$clr-blue-400:  map-get($clr-blue-list, \"400\");\n$clr-blue-500:  map-get($clr-blue-list, \"500\");\n$clr-blue-600:  map-get($clr-blue-list, \"600\");\n$clr-blue-700:  map-get($clr-blue-list, \"700\");\n$clr-blue-800:  map-get($clr-blue-list, \"800\");\n$clr-blue-900:  map-get($clr-blue-list, \"900\");\n$clr-blue-a100: map-get($clr-blue-list, \"a100\");\n$clr-blue-a200: map-get($clr-blue-list, \"a200\");\n$clr-blue-a400: map-get($clr-blue-list, \"a400\");\n$clr-blue-a700: map-get($clr-blue-list, \"a700\");\n\n\n//\n// Light Blue\n//\n\n$clr-light-blue-list: (\n  \"base\": #03a9f4,\n  \"50\":   #e1f5fe,\n  \"100\":  #b3e5fc,\n  \"200\":  #81d4fa,\n  \"300\":  #4fc3f7,\n  \"400\":  #29b6f6,\n  \"500\":  #03a9f4,\n  \"600\":  #039be5,\n  \"700\":  #0288d1,\n  \"800\":  #0277bd,\n  \"900\":  #01579b,\n  \"a100\": #80d8ff,\n  \"a200\": #40c4ff,\n  \"a400\": #00b0ff,\n  \"a700\": #0091ea\n);\n\n$clr-light-blue:      map-get($clr-light-blue-list, \"base\");\n\n$clr-light-blue-50:   map-get($clr-light-blue-list, \"50\");\n$clr-light-blue-100:  map-get($clr-light-blue-list, \"100\");\n$clr-light-blue-200:  map-get($clr-light-blue-list, \"200\");\n$clr-light-blue-300:  map-get($clr-light-blue-list, \"300\");\n$clr-light-blue-400:  map-get($clr-light-blue-list, \"400\");\n$clr-light-blue-500:  map-get($clr-light-blue-list, \"500\");\n$clr-light-blue-600:  map-get($clr-light-blue-list, \"600\");\n$clr-light-blue-700:  map-get($clr-light-blue-list, \"700\");\n$clr-light-blue-800:  map-get($clr-light-blue-list, \"800\");\n$clr-light-blue-900:  map-get($clr-light-blue-list, \"900\");\n$clr-light-blue-a100: map-get($clr-light-blue-list, \"a100\");\n$clr-light-blue-a200: map-get($clr-light-blue-list, \"a200\");\n$clr-light-blue-a400: map-get($clr-light-blue-list, \"a400\");\n$clr-light-blue-a700: map-get($clr-light-blue-list, \"a700\");\n\n\n//\n// Cyan\n//\n\n$clr-cyan-list: (\n  \"base\": #00bcd4,\n  \"50\":   #e0f7fa,\n  \"100\":  #b2ebf2,\n  \"200\":  #80deea,\n  \"300\":  #4dd0e1,\n  \"400\":  #26c6da,\n  \"500\":  #00bcd4,\n  \"600\":  #00acc1,\n  \"700\":  #0097a7,\n  \"800\":  #00838f,\n  \"900\":  #006064,\n  \"a100\": #84ffff,\n  \"a200\": #18ffff,\n  \"a400\": #00e5ff,\n  \"a700\": #00b8d4\n);\n\n$clr-cyan:      map-get($clr-cyan-list, \"base\");\n\n$clr-cyan-50:   map-get($clr-cyan-list, \"50\");\n$clr-cyan-100:  map-get($clr-cyan-list, \"100\");\n$clr-cyan-200:  map-get($clr-cyan-list, \"200\");\n$clr-cyan-300:  map-get($clr-cyan-list, \"300\");\n$clr-cyan-400:  map-get($clr-cyan-list, \"400\");\n$clr-cyan-500:  map-get($clr-cyan-list, \"500\");\n$clr-cyan-600:  map-get($clr-cyan-list, \"600\");\n$clr-cyan-700:  map-get($clr-cyan-list, \"700\");\n$clr-cyan-800:  map-get($clr-cyan-list, \"800\");\n$clr-cyan-900:  map-get($clr-cyan-list, \"900\");\n$clr-cyan-a100: map-get($clr-cyan-list, \"a100\");\n$clr-cyan-a200: map-get($clr-cyan-list, \"a200\");\n$clr-cyan-a400: map-get($clr-cyan-list, \"a400\");\n$clr-cyan-a700: map-get($clr-cyan-list, \"a700\");\n\n\n//\n// Teal\n//\n\n$clr-teal-list: (\n  \"base\": #009688,\n  \"50\":   #e0f2f1,\n  \"100\":  #b2dfdb,\n  \"200\":  #80cbc4,\n  \"300\":  #4db6ac,\n  \"400\":  #26a69a,\n  \"500\":  #009688,\n  \"600\":  #00897b,\n  \"700\":  #00796b,\n  \"800\":  #00695c,\n  \"900\":  #004d40,\n  \"a100\": #a7ffeb,\n  \"a200\": #64ffda,\n  \"a400\": #1de9b6,\n  \"a700\": #00bfa5\n);\n\n$clr-teal:      map-get($clr-teal-list, \"base\");\n\n$clr-teal-50:   map-get($clr-teal-list, \"50\");\n$clr-teal-100:  map-get($clr-teal-list, \"100\");\n$clr-teal-200:  map-get($clr-teal-list, \"200\");\n$clr-teal-300:  map-get($clr-teal-list, \"300\");\n$clr-teal-400:  map-get($clr-teal-list, \"400\");\n$clr-teal-500:  map-get($clr-teal-list, \"500\");\n$clr-teal-600:  map-get($clr-teal-list, \"600\");\n$clr-teal-700:  map-get($clr-teal-list, \"700\");\n$clr-teal-800:  map-get($clr-teal-list, \"800\");\n$clr-teal-900:  map-get($clr-teal-list, \"900\");\n$clr-teal-a100: map-get($clr-teal-list, \"a100\");\n$clr-teal-a200: map-get($clr-teal-list, \"a200\");\n$clr-teal-a400: map-get($clr-teal-list, \"a400\");\n$clr-teal-a700: map-get($clr-teal-list, \"a700\");\n\n\n//\n// Green\n//\n\n$clr-green-list: (\n  \"base\": #4caf50,\n  \"50\":   #e8f5e9,\n  \"100\":  #c8e6c9,\n  \"200\":  #a5d6a7,\n  \"300\":  #81c784,\n  \"400\":  #66bb6a,\n  \"500\":  #4caf50,\n  \"600\":  #43a047,\n  \"700\":  #388e3c,\n  \"800\":  #2e7d32,\n  \"900\":  #1b5e20,\n  \"a100\": #b9f6ca,\n  \"a200\": #69f0ae,\n  \"a400\": #00e676,\n  \"a700\": #00c853\n);\n\n$clr-green:      map-get($clr-green-list, \"base\");\n\n$clr-green-50:   map-get($clr-green-list, \"50\");\n$clr-green-100:  map-get($clr-green-list, \"100\");\n$clr-green-200:  map-get($clr-green-list, \"200\");\n$clr-green-300:  map-get($clr-green-list, \"300\");\n$clr-green-400:  map-get($clr-green-list, \"400\");\n$clr-green-500:  map-get($clr-green-list, \"500\");\n$clr-green-600:  map-get($clr-green-list, \"600\");\n$clr-green-700:  map-get($clr-green-list, \"700\");\n$clr-green-800:  map-get($clr-green-list, \"800\");\n$clr-green-900:  map-get($clr-green-list, \"900\");\n$clr-green-a100: map-get($clr-green-list, \"a100\");\n$clr-green-a200: map-get($clr-green-list, \"a200\");\n$clr-green-a400: map-get($clr-green-list, \"a400\");\n$clr-green-a700: map-get($clr-green-list, \"a700\");\n\n\n//\n// Light green\n//\n\n$clr-light-green-list: (\n  \"base\": #8bc34a,\n  \"50\":   #f1f8e9,\n  \"100\":  #dcedc8,\n  \"200\":  #c5e1a5,\n  \"300\":  #aed581,\n  \"400\":  #9ccc65,\n  \"500\":  #8bc34a,\n  \"600\":  #7cb342,\n  \"700\":  #689f38,\n  \"800\":  #558b2f,\n  \"900\":  #33691e,\n  \"a100\": #ccff90,\n  \"a200\": #b2ff59,\n  \"a400\": #76ff03,\n  \"a700\": #64dd17\n);\n\n$clr-light-green:      map-get($clr-light-green-list, \"base\");\n\n$clr-light-green-50:   map-get($clr-light-green-list, \"50\");\n$clr-light-green-100:  map-get($clr-light-green-list, \"100\");\n$clr-light-green-200:  map-get($clr-light-green-list, \"200\");\n$clr-light-green-300:  map-get($clr-light-green-list, \"300\");\n$clr-light-green-400:  map-get($clr-light-green-list, \"400\");\n$clr-light-green-500:  map-get($clr-light-green-list, \"500\");\n$clr-light-green-600:  map-get($clr-light-green-list, \"600\");\n$clr-light-green-700:  map-get($clr-light-green-list, \"700\");\n$clr-light-green-800:  map-get($clr-light-green-list, \"800\");\n$clr-light-green-900:  map-get($clr-light-green-list, \"900\");\n$clr-light-green-a100: map-get($clr-light-green-list, \"a100\");\n$clr-light-green-a200: map-get($clr-light-green-list, \"a200\");\n$clr-light-green-a400: map-get($clr-light-green-list, \"a400\");\n$clr-light-green-a700: map-get($clr-light-green-list, \"a700\");\n\n\n//\n// Lime\n//\n\n$clr-lime-list: (\n  \"base\": #cddc39,\n  \"50\":   #f9fbe7,\n  \"100\":  #f0f4c3,\n  \"200\":  #e6ee9c,\n  \"300\":  #dce775,\n  \"400\":  #d4e157,\n  \"500\":  #cddc39,\n  \"600\":  #c0ca33,\n  \"700\":  #afb42b,\n  \"800\":  #9e9d24,\n  \"900\":  #827717,\n  \"a100\": #f4ff81,\n  \"a200\": #eeff41,\n  \"a400\": #c6ff00,\n  \"a700\": #aeea00\n);\n\n$clr-lime:      map-get($clr-lime-list, \"base\");\n\n$clr-lime-50:   map-get($clr-lime-list, \"50\");\n$clr-lime-100:  map-get($clr-lime-list, \"100\");\n$clr-lime-200:  map-get($clr-lime-list, \"200\");\n$clr-lime-300:  map-get($clr-lime-list, \"300\");\n$clr-lime-400:  map-get($clr-lime-list, \"400\");\n$clr-lime-500:  map-get($clr-lime-list, \"500\");\n$clr-lime-600:  map-get($clr-lime-list, \"600\");\n$clr-lime-700:  map-get($clr-lime-list, \"700\");\n$clr-lime-800:  map-get($clr-lime-list, \"800\");\n$clr-lime-900:  map-get($clr-lime-list, \"900\");\n$clr-lime-a100: map-get($clr-lime-list, \"a100\");\n$clr-lime-a200: map-get($clr-lime-list, \"a200\");\n$clr-lime-a400: map-get($clr-lime-list, \"a400\");\n$clr-lime-a700: map-get($clr-lime-list, \"a700\");\n\n\n//\n// Yellow\n//\n\n$clr-yellow-list: (\n  \"base\": #ffeb3b,\n  \"50\":   #fffde7,\n  \"100\":  #fff9c4,\n  \"200\":  #fff59d,\n  \"300\":  #fff176,\n  \"400\":  #ffee58,\n  \"500\":  #ffeb3b,\n  \"600\":  #fdd835,\n  \"700\":  #fbc02d,\n  \"800\":  #f9a825,\n  \"900\":  #f57f17,\n  \"a100\": #ffff8d,\n  \"a200\": #ffff00,\n  \"a400\": #ffea00,\n  \"a700\": #ffd600\n);\n\n$clr-yellow:      map-get($clr-yellow-list, \"base\");\n\n$clr-yellow-50:   map-get($clr-yellow-list, \"50\");\n$clr-yellow-100:  map-get($clr-yellow-list, \"100\");\n$clr-yellow-200:  map-get($clr-yellow-list, \"200\");\n$clr-yellow-300:  map-get($clr-yellow-list, \"300\");\n$clr-yellow-400:  map-get($clr-yellow-list, \"400\");\n$clr-yellow-500:  map-get($clr-yellow-list, \"500\");\n$clr-yellow-600:  map-get($clr-yellow-list, \"600\");\n$clr-yellow-700:  map-get($clr-yellow-list, \"700\");\n$clr-yellow-800:  map-get($clr-yellow-list, \"800\");\n$clr-yellow-900:  map-get($clr-yellow-list, \"900\");\n$clr-yellow-a100: map-get($clr-yellow-list, \"a100\");\n$clr-yellow-a200: map-get($clr-yellow-list, \"a200\");\n$clr-yellow-a400: map-get($clr-yellow-list, \"a400\");\n$clr-yellow-a700: map-get($clr-yellow-list, \"a700\");\n\n\n//\n// amber\n//\n\n$clr-amber-list: (\n  \"base\": #ffc107,\n  \"50\":   #fff8e1,\n  \"100\":  #ffecb3,\n  \"200\":  #ffe082,\n  \"300\":  #ffd54f,\n  \"400\":  #ffca28,\n  \"500\":  #ffc107,\n  \"600\":  #ffb300,\n  \"700\":  #ffa000,\n  \"800\":  #ff8f00,\n  \"900\":  #ff6f00,\n  \"a100\": #ffe57f,\n  \"a200\": #ffd740,\n  \"a400\": #ffc400,\n  \"a700\": #ffab00\n);\n\n$clr-amber:      map-get($clr-amber-list, \"base\");\n\n$clr-amber-50:   map-get($clr-amber-list, \"50\");\n$clr-amber-100:  map-get($clr-amber-list, \"100\");\n$clr-amber-200:  map-get($clr-amber-list, \"200\");\n$clr-amber-300:  map-get($clr-amber-list, \"300\");\n$clr-amber-400:  map-get($clr-amber-list, \"400\");\n$clr-amber-500:  map-get($clr-amber-list, \"500\");\n$clr-amber-600:  map-get($clr-amber-list, \"600\");\n$clr-amber-700:  map-get($clr-amber-list, \"700\");\n$clr-amber-800:  map-get($clr-amber-list, \"800\");\n$clr-amber-900:  map-get($clr-amber-list, \"900\");\n$clr-amber-a100: map-get($clr-amber-list, \"a100\");\n$clr-amber-a200: map-get($clr-amber-list, \"a200\");\n$clr-amber-a400: map-get($clr-amber-list, \"a400\");\n$clr-amber-a700: map-get($clr-amber-list, \"a700\");\n\n\n//\n// Orange\n//\n\n$clr-orange-list: (\n  \"base\": #ff9800,\n  \"50\":   #fff3e0,\n  \"100\":  #ffe0b2,\n  \"200\":  #ffcc80,\n  \"300\":  #ffb74d,\n  \"400\":  #ffa726,\n  \"500\":  #ff9800,\n  \"600\":  #fb8c00,\n  \"700\":  #f57c00,\n  \"800\":  #ef6c00,\n  \"900\":  #e65100,\n  \"a100\": #ffd180,\n  \"a200\": #ffab40,\n  \"a400\": #ff9100,\n  \"a700\": #ff6d00\n);\n\n$clr-orange:      map-get($clr-orange-list, \"base\");\n\n$clr-orange-50:   map-get($clr-orange-list, \"50\");\n$clr-orange-100:  map-get($clr-orange-list, \"100\");\n$clr-orange-200:  map-get($clr-orange-list, \"200\");\n$clr-orange-300:  map-get($clr-orange-list, \"300\");\n$clr-orange-400:  map-get($clr-orange-list, \"400\");\n$clr-orange-500:  map-get($clr-orange-list, \"500\");\n$clr-orange-600:  map-get($clr-orange-list, \"600\");\n$clr-orange-700:  map-get($clr-orange-list, \"700\");\n$clr-orange-800:  map-get($clr-orange-list, \"800\");\n$clr-orange-900:  map-get($clr-orange-list, \"900\");\n$clr-orange-a100: map-get($clr-orange-list, \"a100\");\n$clr-orange-a200: map-get($clr-orange-list, \"a200\");\n$clr-orange-a400: map-get($clr-orange-list, \"a400\");\n$clr-orange-a700: map-get($clr-orange-list, \"a700\");\n\n\n//\n// Deep orange\n//\n\n$clr-deep-orange-list: (\n  \"base\": #ff5722,\n  \"50\":   #fbe9e7,\n  \"100\":  #ffccbc,\n  \"200\":  #ffab91,\n  \"300\":  #ff8a65,\n  \"400\":  #ff7043,\n  \"500\":  #ff5722,\n  \"600\":  #f4511e,\n  \"700\":  #e64a19,\n  \"800\":  #d84315,\n  \"900\":  #bf360c,\n  \"a100\": #ff9e80,\n  \"a200\": #ff6e40,\n  \"a400\": #ff3d00,\n  \"a700\": #dd2c00\n);\n\n$clr-deep-orange:      map-get($clr-deep-orange-list, \"base\");\n\n$clr-deep-orange-50:   map-get($clr-deep-orange-list, \"50\");\n$clr-deep-orange-100:  map-get($clr-deep-orange-list, \"100\");\n$clr-deep-orange-200:  map-get($clr-deep-orange-list, \"200\");\n$clr-deep-orange-300:  map-get($clr-deep-orange-list, \"300\");\n$clr-deep-orange-400:  map-get($clr-deep-orange-list, \"400\");\n$clr-deep-orange-500:  map-get($clr-deep-orange-list, \"500\");\n$clr-deep-orange-600:  map-get($clr-deep-orange-list, \"600\");\n$clr-deep-orange-700:  map-get($clr-deep-orange-list, \"700\");\n$clr-deep-orange-800:  map-get($clr-deep-orange-list, \"800\");\n$clr-deep-orange-900:  map-get($clr-deep-orange-list, \"900\");\n$clr-deep-orange-a100: map-get($clr-deep-orange-list, \"a100\");\n$clr-deep-orange-a200: map-get($clr-deep-orange-list, \"a200\");\n$clr-deep-orange-a400: map-get($clr-deep-orange-list, \"a400\");\n$clr-deep-orange-a700: map-get($clr-deep-orange-list, \"a700\");\n\n\n//\n// Brown\n//\n\n$clr-brown-list: (\n  \"base\": #795548,\n  \"50\":   #efebe9,\n  \"100\":  #d7ccc8,\n  \"200\":  #bcaaa4,\n  \"300\":  #a1887f,\n  \"400\":  #8d6e63,\n  \"500\":  #795548,\n  \"600\":  #6d4c41,\n  \"700\":  #5d4037,\n  \"800\":  #4e342e,\n  \"900\":  #3e2723,\n);\n\n$clr-brown:     map-get($clr-brown-list, \"base\");\n\n$clr-brown-50:  map-get($clr-brown-list, \"50\");\n$clr-brown-100: map-get($clr-brown-list, \"100\");\n$clr-brown-200: map-get($clr-brown-list, \"200\");\n$clr-brown-300: map-get($clr-brown-list, \"300\");\n$clr-brown-400: map-get($clr-brown-list, \"400\");\n$clr-brown-500: map-get($clr-brown-list, \"500\");\n$clr-brown-600: map-get($clr-brown-list, \"600\");\n$clr-brown-700: map-get($clr-brown-list, \"700\");\n$clr-brown-800: map-get($clr-brown-list, \"800\");\n$clr-brown-900: map-get($clr-brown-list, \"900\");\n\n\n//\n// Grey\n//\n\n$clr-grey-list: (\n  \"base\": #9e9e9e,\n  \"50\":   #fafafa,\n  \"100\":  #f5f5f5,\n  \"200\":  #eeeeee,\n  \"300\":  #e0e0e0,\n  \"400\":  #bdbdbd,\n  \"500\":  #9e9e9e,\n  \"600\":  #757575,\n  \"700\":  #616161,\n  \"800\":  #424242,\n  \"900\":  #212121,\n);\n\n$clr-grey:     map-get($clr-grey-list, \"base\");\n\n$clr-grey-50:  map-get($clr-grey-list, \"50\");\n$clr-grey-100: map-get($clr-grey-list, \"100\");\n$clr-grey-200: map-get($clr-grey-list, \"200\");\n$clr-grey-300: map-get($clr-grey-list, \"300\");\n$clr-grey-400: map-get($clr-grey-list, \"400\");\n$clr-grey-500: map-get($clr-grey-list, \"500\");\n$clr-grey-600: map-get($clr-grey-list, \"600\");\n$clr-grey-700: map-get($clr-grey-list, \"700\");\n$clr-grey-800: map-get($clr-grey-list, \"800\");\n$clr-grey-900: map-get($clr-grey-list, \"900\");\n\n\n//\n// Blue grey\n//\n\n$clr-blue-grey-list: (\n  \"base\": #607d8b,\n  \"50\":   #eceff1,\n  \"100\":  #cfd8dc,\n  \"200\":  #b0bec5,\n  \"300\":  #90a4ae,\n  \"400\":  #78909c,\n  \"500\":  #607d8b,\n  \"600\":  #546e7a,\n  \"700\":  #455a64,\n  \"800\":  #37474f,\n  \"900\":  #263238,\n);\n\n$clr-blue-grey:     map-get($clr-blue-grey-list, \"base\");\n\n$clr-blue-grey-50:  map-get($clr-blue-grey-list, \"50\");\n$clr-blue-grey-100: map-get($clr-blue-grey-list, \"100\");\n$clr-blue-grey-200: map-get($clr-blue-grey-list, \"200\");\n$clr-blue-grey-300: map-get($clr-blue-grey-list, \"300\");\n$clr-blue-grey-400: map-get($clr-blue-grey-list, \"400\");\n$clr-blue-grey-500: map-get($clr-blue-grey-list, \"500\");\n$clr-blue-grey-600: map-get($clr-blue-grey-list, \"600\");\n$clr-blue-grey-700: map-get($clr-blue-grey-list, \"700\");\n$clr-blue-grey-800: map-get($clr-blue-grey-list, \"800\");\n$clr-blue-grey-900: map-get($clr-blue-grey-list, \"900\");\n\n\n//\n// Black\n//\n\n$clr-black-list: (\n  \"base\": #000\n);\n\n$clr-black: map-get($clr-black-list, \"base\");\n\n\n//\n// White\n//\n\n$clr-white-list: (\n  \"base\": #fff\n);\n\n$clr-white: map-get($clr-white-list, \"base\");\n\n\n//\n// List for all Colors for looping\n//\n\n$clr-list-all: (\n  \"red\":         $clr-red-list,\n  \"pink\":        $clr-pink-list,\n  \"purple\":      $clr-purple-list,\n  \"deep-purple\": $clr-deep-purple-list,\n  \"indigo\":      $clr-indigo-list,\n  \"blue\":        $clr-blue-list,\n  \"light-blue\":  $clr-light-blue-list,\n  \"cyan\":        $clr-cyan-list,\n  \"teal\":        $clr-teal-list,\n  \"green\":       $clr-green-list,\n  \"light-green\": $clr-light-green-list,\n  \"lime\":        $clr-lime-list,\n  \"yellow\":      $clr-yellow-list,\n  \"amber\":       $clr-amber-list,\n  \"orange\":      $clr-orange-list,\n  \"deep-orange\": $clr-deep-orange-list,\n  \"brown\":       $clr-brown-list,\n  \"grey\":        $clr-grey-list,\n  \"blue-grey\":   $clr-blue-grey-list,\n  \"black\":       $clr-black-list,\n  \"white\":       $clr-white-list\n);\n\n\n//\n// Typography\n//\n\n$clr-ui-display-4: $clr-grey-600;\n$clr-ui-display-3: $clr-grey-600;\n$clr-ui-display-2: $clr-grey-600;\n$clr-ui-display-1: $clr-grey-600;\n$clr-ui-headline:  $clr-grey-900;\n$clr-ui-title:     $clr-grey-900;\n$clr-ui-subhead-1: $clr-grey-900;\n$clr-ui-body-2:    $clr-grey-900;\n$clr-ui-body-1:    $clr-grey-900;\n$clr-ui-caption:   $clr-grey-600;\n$clr-ui-menu:      $clr-grey-900;\n$clr-ui-button:    $clr-grey-900;\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: syntax highlighting\n// ----------------------------------------------------------------------------\n\n// Codehilite extension\n.codehilite {\n\n  .o,   // Operator\n  .ow { // Operator, word\n    color: var(--md-code-hl-operator-color);\n  }\n\n  .p {  // Punctuation\n    color: var(--md-code-hl-punctuation-color);\n  }\n\n  .cpf, // Comment, preprocessor file\n  .l,   // Literal\n  .s,   // Literal, string\n  .sb,  // Literal, string backticks\n  .sc,  // Literal, string char\n  .s2,  // Literal, string double\n  .si,  // Literal, string interpol\n  .s1,  // Literal, string single\n  .ss { // Literal, string symbol\n    color: var(--md-code-hl-string-color);\n  }\n\n  .cp,  // Comment, pre-processor\n  .se,  // Literal, string escape\n  .sh,  // Literal, string heredoc\n  .sr,  // Literal, string regex\n  .sx { // Literal, string other\n    color: var(--md-code-hl-special-color);\n  }\n\n  .m,   // Number\n  .mf,  // Number, float\n  .mh,  // Number, hex\n  .mi,  // Number, integer\n  .il,  // Number, integer long\n  .mo { // Number, octal\n    color: var(--md-code-hl-number-color);\n  }\n\n  .k,   // Keyword,\n  .kd,  // Keyword, declaration\n  .kn,  // Keyword, namespace\n  .kp,  // Keyword, pseudo\n  .kr,  // Keyword, reserved\n  .kt { // Keyword, type\n    color: var(--md-code-hl-keyword-color);\n  }\n\n  .kc,  // Keyword, constant\n  .n {  // Name\n    color: var(--md-code-hl-name-color);\n  }\n\n  .no,  // Name, constant\n  .nb,  // Name, builtin\n  .bp { // Name, builtin pseudo\n    color: var(--md-code-hl-constant-color);\n  }\n\n  .nc,  // Name, class\n  .ne,  // Name, exception\n  .nf,  // Name, function\n  .nn { // Name, namespace\n    color: var(--md-code-hl-function-color);\n  }\n\n  .nd,  // Name, decorator\n  .ni,  // Name, entity\n  .nl,  // Name, label\n  .nt { // Name, tag\n    color: var(--md-code-hl-keyword-color);\n  }\n\n  .c,   // Comment\n  .cm,  // Comment, multiline\n  .c1,  // Comment, single\n  .ch,  // Comment, shebang\n  .cs,  // Comment, special\n  .sd { // Literal, string doc\n    color: var(--md-code-hl-comment-color);\n  }\n\n  .na,  // Name, attribute\n  .nv,  // Variable,\n  .vc,  // Variable, class\n  .vg,  // Variable, global\n  .vi { // Variable, instance\n    color: var(--md-code-hl-variable-color);\n  }\n\n  .ge,  // Generic, emph\n  .gr,  // Generic, error\n  .gh,  // Generic, heading\n  .go,  // Generic, output\n  .gp,  // Generic, prompt\n  .gs,  // Generic, strong\n  .gu,  // Generic, subheading\n  .gt { // Generic, traceback\n    color: var(--md-code-hl-generic-color);\n  }\n\n  .gd,  // Diff, delete\n  .gi { // Diff, insert\n    margin: 0 px2em(-2px);\n    padding: 0 px2em(2px);\n    border-radius: px2rem(2px);\n  }\n\n  .gd { // Diff, delete\n    background-color: var(--md-typeset-del-color);\n  }\n\n  .gi { // Diff, insert\n    background-color: var(--md-typeset-ins-color)\n  }\n\n  // Highlighted lines\n  .hll {\n    display: block;\n    margin: 0 px2em(-16px, 13.6px);\n    padding: 0 px2em(16px, 13.6px);\n    background-color: var(--md-code-hl-color)\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Block with line numbers\n.codehilitetable {\n  display: block;\n  overflow: hidden;\n\n  // Set table elements to block layout, because otherwise the whole flexbox\n  // hacking won't work correctly\n  tbody,\n  td {\n    display: block;\n    padding: 0;\n  }\n\n  // We need to use flexbox layout, because otherwise it's not possible to\n  // make the code container scroll while keeping the line numbers static\n  tr {\n    display: flex;\n  }\n\n  // The pre tags are nested inside a table, so we need to remove the\n  // margin because it collapses below all the overflows\n  pre {\n    margin: 0;\n  }\n\n  // Disable user selection, so code can be easily copied without\n  // accidentally also copying the line numbers\n  .linenos {\n    padding: px2rem(10.5px) px2em(16px, 13.6px);\n    padding-right: 0;\n    font-size: px2em(13.6px);\n    background-color: var(--md-code-bg-color);\n    user-select: none;\n  }\n\n  // Add spacing to line number container\n  .linenodiv {\n    padding-right: px2em(8px, 13.6px);\n    box-shadow: px2rem(-1px) 0 var(--md-default-fg-color--lighter) inset;\n\n    // Reset spacings\n    pre {\n      color: var(--md-default-fg-color--light);\n      text-align: right;\n    }\n  }\n\n  // The table cell containing the code container wrapper and code should\n  // stretch horizontally to the remaining space\n  .code {\n    flex: 1;\n    overflow: hidden;\n  }\n}\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Block with line numbers\n  .codehilitetable {\n    margin: 1em 0;\n    direction: ltr;\n    border-radius: px2rem(2px);\n\n    // Remove rounded borders\n    code {\n      border-radius: 0;\n    }\n  }\n\n  // [mobile -]: Stretch to whole width\n  @include break-to-device(mobile) {\n\n    // Full-width container\n    > .codehilite {\n      margin: 1em px2rem(-16px);\n\n      // Stretch highlighted lines\n      .hll {\n        margin: 0 px2rem(-16px);\n        padding: 0 px2rem(16px);\n      }\n\n      // Remove rounded borders\n      code {\n        border-radius: 0;\n      }\n    }\n\n    // Full-width container on top-level\n    > .codehilitetable {\n      margin: 1em px2rem(-16px);\n      border-radius: 0;\n\n      // Stretch highlighted lines\n      .hll {\n        margin: 0 px2rem(-16px);\n        padding: 0 px2rem(16px);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-footnotes-icon: svg-load(\"@mdi/svg/svg/keyboard-return.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // All footnote references\n  [id^=\"fnref:\"] {\n    display: inline-block;\n\n    // Targeted anchor\n    &:target {\n      margin-top: -1 * px2rem(48px + 12px + 16px);\n      padding-top: px2rem(48px + 12px + 16px);\n      pointer-events: none;\n      scroll-margin-top: initial;\n    }\n  }\n\n  // All footnote back references\n  [id^=\"fn:\"] {\n\n    // Add spacing to anchor for offset\n    &::before {\n      display: none;\n      height: 0;\n      content: \"\";\n    }\n\n    // Reset, as we use the anchor-correction hack here.\n    &:target {\n      scroll-margin-top: initial;\n    }\n\n    // Targeted anchor\n    &:target::before {\n      display: block;\n      margin-top: -1 * px2rem(48px + 12px + 10px);\n      padding-top: px2rem(48px + 12px + 10px);\n      pointer-events: none;\n    }\n  }\n\n  // Footnotes extension\n  .footnote {\n    color: var(--md-default-fg-color--light);\n    font-size: px2rem(12.8px);\n\n    // Remove additional spacing on footnotes\n    ol {\n      margin-left: 0;\n    }\n\n    // Footnote\n    li {\n      transition: color 125ms;\n\n      // Darken color for targeted footnote\n      &:target {\n        color: var(--md-default-fg-color);\n      }\n\n      // Remove spacing on first element\n      :first-child {\n        margin-top: 0;\n      }\n\n      // Make back references visible on container hover\n      &:hover  .footnote-backref,\n      &:target .footnote-backref {\n        transform: translateX(0);\n        opacity: 1;\n      }\n\n      // Hovered back reference\n      &:hover  .footnote-backref:hover {\n        color: var(--md-accent-fg-color);\n      }\n    }\n  }\n\n  // Footnote reference\n  .footnote-ref {\n    display: inline-block;\n    pointer-events: initial;\n  }\n\n  // Footnote back reference\n  .footnote-backref {\n    display: inline-block;\n    color: var(--md-typeset-a-color);\n    // Hack: remove Unicode arrow for icon\n    font-size: 0;\n    vertical-align: text-bottom;\n    transform: translateX(px2rem(5px));\n    opacity: 0;\n    transition:\n      color     250ms,\n      transform 250ms 250ms,\n      opacity   125ms 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      transform: translateX(px2rem(-5px));\n    }\n\n    // Back reference icon\n    &::before {\n      display: inline-block;\n      width: px2rem(16px);\n      height: px2rem(16px);\n      background-color: currentColor;\n      mask-image: var(--md-footnotes-icon);\n      mask-repeat: no-repeat;\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1)\n        }\n      }\n    }\n\n    // Always show for print\n    @media print {\n      color: var(--md-typeset-a-color);\n      transform: translateX(0);\n      opacity: 1;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Permalinks extension\n  .headerlink {\n    display: inline-block;\n    margin-left: px2rem(10px);\n    // Hack: if we don't set visibility hidden, the text content of the node\n    // will include the headerlink character, which is why Google indexes them.\n    visibility: hidden;\n    opacity: 0;\n    transition:\n      color      250ms,\n      visibility   0ms 500ms,\n      opacity    125ms;\n\n    // Adjust for RTL languages\n    [dir=\"rtl\"] & {\n      margin-right: px2rem(10px);\n      margin-left: initial;\n    }\n\n    // Higher specificity for color due to palettes integration\n    html body & {\n      color: var(--md-default-fg-color--lighter);\n    }\n\n    // Hide for print\n    @media print {\n      display: none;\n    }\n  }\n\n  // Make permalink visible on hover\n  :hover  > .headerlink,\n  :target > .headerlink,\n  .headerlink:focus {\n    visibility: visible;\n    opacity: 1;\n    transition:\n      color      250ms,\n      visibility   0ms,\n      opacity    125ms;\n  }\n\n  // Active or targeted permalink\n  :target > .headerlink,\n  .headerlink:focus,\n  .headerlink:hover {\n    color: var(--md-accent-fg-color);\n  }\n\n  // General scroll margin offset for anything that can be targeted. Browser\n  // support is pretty decent by now, and if we wait until Edge 79+ has more\n  // adoption, we can get rid of all anchor-correction hacks.\n  :target {\n    scroll-margin-top: px2rem(48px + 24px);\n  }\n\n  // Correct anchor offset for link blurring\n  @each $level, $delta in (\n    h1 h2 h3: 8px,\n    h4: 9px,\n    h5 h6: 12px,\n  ) {\n    %#{nth($level, 1)} {\n\n      // Reset, as we use the anchor-correction hack here.\n      &:target {\n        scroll-margin-top: initial;\n      }\n\n      // Un-targeted anchor\n      &::before {\n        display: block;\n        margin-top: -1 * px2rem($delta);\n        padding-top: px2rem($delta);\n        content: \"\";\n      }\n\n      // Targeted anchor (48px from header, 12px from sidebar offset)\n      &:target::before {\n        margin-top: -1 * px2rem(48px + 12px + $delta);\n        padding-top: px2rem(48px + 12px + $delta);\n      }\n    }\n\n    // Define levels\n    @for $n from 1 through length($level) {\n      #{nth($level, $n)}[id] {\n        @extend %#{nth($level, 1)};\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Scroll math block on overflow\n  div.arithmatex {\n    overflow-x: scroll;\n\n    // [mobile -]: Stretch to whole width\n    @include break-to-device(mobile) {\n      margin: 0 px2rem(-16px);\n    }\n\n    // MathJax integration\n    > * {\n      width: min-content;\n      margin: 1em auto !important;\n      padding: 0 px2rem(16px);\n      overflow: auto;\n      touch-action: auto;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Deletions, additions and comments\n  del.critic,\n  ins.critic,\n  .critic.comment {\n    box-decoration-break: clone;\n  }\n\n  // Deletion\n  del.critic {\n    background-color: var(--md-typeset-del-color);\n  }\n\n  // Addition\n  ins.critic {\n    background-color: var(--md-typeset-ins-color);\n  }\n\n  // Comment\n  .critic.comment {\n    color: var(--md-code-hl-comment-color);\n\n    // Comment opening mark\n    &::before {\n      content: \"/* \";\n    }\n\n    // Comment closing mark\n    &::after {\n      content: \" */\";\n    }\n  }\n\n  // Block\n  .critic.block {\n    display: block;\n    margin: 1em 0;\n    padding-right: px2rem(16px);\n    padding-left: px2rem(16px);\n    overflow: auto;\n    box-shadow: none;\n\n    // Decrease spacing on first element\n    :first-child {\n      margin-top: 0.5em;\n    }\n\n    // Decrease spacing on last element\n    :last-child {\n      margin-bottom: 0.5em;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-details-icon: svg-load(\"@mdi/svg/svg/chevron-right.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Details extension\n  details {\n    @extend .admonition;\n\n    display: block;\n    padding-top: 0;\n    overflow: visible;\n\n    // Rotate title icon\n    &[open] > summary::after {\n      transform: rotate(90deg);\n    }\n\n    // Remove bottom spacing for closed details\n    &:not([open]) {\n      padding-bottom: 0;\n\n      // We cannot set overflow: hidden, as the outline would not be visible,\n      // so we need to correct the border radius\n      > summary {\n        border-radius: px2rem(2px);\n      }\n    }\n\n    // Hack: omit margin collapse\n    &::after {\n      display: table;\n      content: \"\";\n    }\n  }\n\n  // Details title\n  summary {\n    @extend .admonition-title;\n\n    display: block;\n    min-height: px2rem(20px);\n    padding: px2rem(8px) px2rem(36px) px2rem(8px) px2rem(44px);\n    border-top-left-radius: px2rem(2px);\n    border-top-right-radius: px2rem(2px);\n    cursor: pointer;\n\n    // Disable focus indicator for pointer devices\n    &:not(.focus-visible) {\n      outline: none;\n      -webkit-tap-highlight-color: transparent;\n    }\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding: px2rem(8px) px2rem(44px) px2rem(8px) px2rem(36px);\n    }\n\n    // Remove default details marker\n    &::-webkit-details-marker {\n      display: none;\n    }\n\n    // Details marker\n    &::after {\n      position: absolute;\n      top: px2rem(8px);\n      right: px2rem(8px);\n      width: px2rem(20px);\n      height: px2rem(20px);\n      background-color: currentColor;\n      mask-image: var(--md-details-icon);\n      mask-repeat: no-repeat;\n      transform: rotate(0deg);\n      transition: transform 250ms;\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: initial;\n        left: px2rem(8px);\n        transform: rotate(180deg);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Emojis\n  img.emojione,\n  img.twemoji,\n  img.gemoji {\n    width: px2em(18px);\n    max-height: 100%;\n    vertical-align: -15%;\n  }\n\n  // Inlined SVG icons via mkdocs-material-extensions\n  span.twemoji {\n    display: inline-block;\n    height: px2em(18px);\n    vertical-align: text-top;\n\n    // Icon\n    svg {\n      width: px2em(18px);\n      max-height: 100%;\n      fill: currentColor;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// When pymdownx.superfences is enabled but codehilite is disabled,\n// pymdownx.highlight will be used. When this happens, the outer container\n// and tables get this class names by default\n.highlight {\n  @extend .codehilite;\n\n  // Inline line numbers\n  [data-linenos]::before {\n    position: sticky;\n    left: px2em(-16px, 13.6px);\n    float: left;\n    margin-right: px2em(16px, 13.6px);\n    margin-left: px2em(-16px, 13.6px);\n    padding-left: px2em(16px, 13.6px);\n    color: var(--md-default-fg-color--light);\n    background-color: var(--md-code-bg-color);\n    box-shadow: px2rem(-1px) 0 var(--md-default-fg-color--lighter) inset;\n    content: attr(data-linenos);\n    user-select: none;\n  }\n}\n\n// Same as above, but for code blocks with line numbers enabled\n.highlighttable {\n  @extend .codehilitetable;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset .keys {\n\n  // Keyboard key icon\n  kbd::before,\n  kbd::after {\n    position: relative;\n    margin: 0;\n    color: inherit;\n    -moz-osx-font-smoothing: initial;\n    -webkit-font-smoothing: initial;\n  }\n\n  // Surrounding text\n  span {\n    padding: 0 px2em(3.2px);\n    color: var(--md-default-fg-color--light);\n  }\n\n  // Build special keys with left icon\n  @each $name, $code in (\n\n    // Modifiers\n    \"alt\":           \"\\2387\",\n    \"left-alt\":      \"\\2387\",\n    \"right-alt\":     \"\\2387\",\n    \"command\":       \"\\2318\",\n    \"left-command\":  \"\\2318\",\n    \"right-command\": \"\\2318\",\n    \"control\":       \"\\2303\",\n    \"left-control\":  \"\\2303\",\n    \"right-control\": \"\\2303\",\n    \"meta\":          \"\\25C6\",\n    \"left-meta\":     \"\\25C6\",\n    \"right-meta\":    \"\\25C6\",\n    \"option\":        \"\\2325\",\n    \"left-option\":   \"\\2325\",\n    \"right-option\":  \"\\2325\",\n    \"shift\":         \"\\21E7\",\n    \"left-shift\":    \"\\21E7\",\n    \"right-shift\":   \"\\21E7\",\n    \"super\":         \"\\2756\",\n    \"left-super\":    \"\\2756\",\n    \"right-super\":   \"\\2756\",\n    \"windows\":       \"\\229E\",\n    \"left-windows\":  \"\\229E\",\n    \"right-windows\": \"\\229E\",\n\n    // Other keys\n    \"arrow-down\":    \"\\2193\",\n    \"arrow-left\":    \"\\2190\",\n    \"arrow-right\":   \"\\2192\",\n    \"arrow-up\":      \"\\2191\",\n    \"backspace\":     \"\\232B\",\n    \"backtab\":       \"\\21E4\",\n    \"caps-lock\":     \"\\21EA\",\n    \"clear\":         \"\\2327\",\n    \"context-menu\":  \"\\2630\",\n    \"delete\":        \"\\2326\",\n    \"eject\":         \"\\23CF\",\n    \"end\":           \"\\2913\",\n    \"escape\":        \"\\238B\",\n    \"home\":          \"\\2912\",\n    \"insert\":        \"\\2380\",\n    \"page-down\":     \"\\21DF\",\n    \"page-up\":       \"\\21DE\",\n    \"print-screen\":  \"\\2399\"\n  ) {\n    .key-#{$name} {\n      &::before {\n        padding-right: px2em(6.4px);\n        content: $code;\n      }\n    }\n  }\n\n  // Build special keys with right icon\n  @each $name, $code in (\n    \"tab\":           \"\\21E5\",\n    \"num-enter\":     \"\\2324\",\n    \"enter\":         \"\\23CE\"\n  ) {\n    .key-#{$name} {\n      &::after {\n        padding-left: px2em(6.4px);\n        content: $code;\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Tabbed block content\n  .tabbed-content {\n    display: none;\n    order: 99;\n    width: 100%;\n    box-shadow: 0 px2rem(-1px) var(--md-default-fg-color--lightest);\n\n    // Mirror old superfences behavior, if there's only a single code block.\n    > pre:only-child,\n    > .codehilite:only-child pre,\n    > .codehilitetable:only-child,\n    > .highlight:only-child pre,\n    > .highlighttable:only-child {\n      margin: 0;\n\n      // Remove rounded borders at the top\n      > code {\n        border-top-left-radius: 0;\n        border-top-right-radius: 0;\n      }\n    }\n\n    // Nested tabs\n    > .tabbed-set {\n      margin: 0;\n    }\n  }\n\n  // Tabbed block container\n  .tabbed-set {\n    position: relative;\n    display: flex;\n    flex-wrap: wrap;\n    margin: 1em 0;\n    border-radius: px2rem(2px);\n\n    // Hide radio buttons\n    > input {\n      position: absolute;\n      opacity: 0;\n\n      // Active tab label\n      &:checked + label {\n        color: var(--md-accent-fg-color);\n        border-color: var(--md-accent-fg-color);\n\n        // Show tabbed block content\n        & + .tabbed-content {\n          display: block;\n        }\n      }\n\n      // Focused tab label\n      &:focus + label {\n        outline-style: auto;\n      }\n\n      // Disable focus indicator for pointer devices\n      &:not(.focus-visible) + label {\n        outline: none;\n        -webkit-tap-highlight-color: transparent;\n      }\n    }\n\n    // Tab label\n    > label {\n      z-index: 1;\n      width: auto;\n      padding: px2em(12px, 12.8px) 1.25em px2em(10px, 12.8px);\n      color: var(--md-default-fg-color--light);\n      font-weight: 700;\n      font-size: px2rem(12.8px);\n      border-bottom: px2rem(2px) solid transparent;\n      cursor: pointer;\n      transition: color 250ms;\n\n      // Hovered label\n      html &:hover {\n        color: var(--md-accent-fg-color);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-tasklist-icon: svg-load(\n    \"@primer/octicons/build/svg/check-circle-fill-24.svg\"\n  );\n  --md-tasklist-icon--checked: svg-load(\n    \"@primer/octicons/build/svg/check-circle-fill-24.svg\"\n  );\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Remove list icon on task items\n  .task-list-item {\n    position: relative;\n    list-style-type: none;\n\n    // Make checkbox items align with normal list items, but position\n    // everything in ems for correct layout at smaller font sizes\n    [type=\"checkbox\"] {\n      position: absolute;\n      top: 0.45em;\n      left: -2em;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: -2em;\n        left: initial;\n      }\n    }\n  }\n\n  // Wrapper for list controls, in case custom checkboxes are enabled\n  .task-list-control {\n\n    // Checkbox icon in unchecked state\n    .task-list-indicator::before {\n      position: absolute;\n      top: 0.15em;\n      left: px2em(-24px);\n      width: px2em(20px);\n      height: px2em(20px);\n      background-color: var(--md-default-fg-color--lightest);\n      mask-image: var(--md-tasklist-icon);\n      mask-repeat: no-repeat;\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2em(-24px);\n        left: initial;\n      }\n    }\n\n    // Checkbox icon in checked state\n    [type=\"checkbox\"]:checked + .task-list-indicator::before {\n      background-color: $clr-green-a400;\n      mask-image: var(--md-tasklist-icon--checked);\n    }\n\n    // Hide original checkbox behind icon\n    [type=\"checkbox\"] {\n      z-index: -1;\n      opacity: 0;\n    }\n  }\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/stylesheets/main.6e35a1a6.min.css b/assets/stylesheets/main.6e35a1a6.min.css
deleted file mode 100644
index be58a66b5..000000000
--- a/assets/stylesheets/main.6e35a1a6.min.css
+++ /dev/null
@@ -1,3 +0,0 @@
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summary::after{position:absolute;top:.4rem;right:.4rem;width:1rem;height:1rem;background-color:currentColor;mask-image:var(--md-details-icon);transform:rotate(0deg);transition:transform 250ms;content:\"\"}[dir=rtl] .md-typeset summary::after{right:initial;left:.4rem;transform:rotate(180deg)}.md-typeset img.emojione,.md-typeset img.twemoji,.md-typeset img.gemoji{width:1.125em;vertical-align:-15%}.md-typeset span.twemoji{display:inline-block;height:1.125em;vertical-align:text-top}.md-typeset span.twemoji svg{width:1.125em;fill:currentColor}.highlight [data-linenos]::before{position:sticky;left:-1.1764705882em;float:left;margin-right:1.1764705882em;margin-left:-1.1764705882em;padding-left:1.1764705882em;color:var(--md-default-fg-color--lighter);background-color:var(--md-code-bg-color);box-shadow:inset -0.05rem 0 var(--md-default-fg-color--lightest);content:attr(data-linenos);user-select:none}.md-typeset .tabbed-content{display:none;order:99;width:100%;box-shadow:0 -0.05rem var(--md-default-fg-color--lightest)}.md-typeset .tabbed-content>.codehilite:only-child pre,.md-typeset .tabbed-content>.codehilitetable:only-child,.md-typeset .tabbed-content>.highlight:only-child pre,.md-typeset .tabbed-content>.highlighttable:only-child{margin:0}.md-typeset .tabbed-content>.codehilite:only-child pre>code,.md-typeset .tabbed-content>.codehilitetable:only-child>code,.md-typeset .tabbed-content>.highlight:only-child pre>code,.md-typeset .tabbed-content>.highlighttable:only-child>code{border-top-left-radius:0;border-top-right-radius:0}.md-typeset .tabbed-content>.tabbed-set{margin:0}.md-typeset .tabbed-set{position:relative;display:flex;flex-wrap:wrap;margin:1em 0;border-radius:.1rem}.md-typeset .tabbed-set>input{display:none}.md-typeset .tabbed-set>input:checked+label{color:var(--md-accent-fg-color);border-color:var(--md-accent-fg-color)}.md-typeset .tabbed-set>input:checked+label+.tabbed-content{display:block}.md-typeset .tabbed-set>label{z-index:1;width:auto;padding:.6rem 1.25em .5rem;color:var(--md-default-fg-color--light);font-weight:700;font-size:.64rem;border-bottom:.1rem solid transparent;cursor:pointer;transition:color 250ms}html .md-typeset .tabbed-set>label:hover{color:var(--md-accent-fg-color)}:root{--md-tasklist-icon: svg-load(\"@mdi/svg/svg/checkbox-blank-circle.svg\");--md-tasklist-icon--checked: svg-load(\"@mdi/svg/svg/check-circle.svg\")}.md-typeset .task-list-item{position:relative;list-style-type:none}.md-typeset .task-list-item [type=checkbox]{position:absolute;top:.45em;left:-2em}[dir=rtl] .md-typeset .task-list-item [type=checkbox]{right:-2em;left:initial}.md-typeset .task-list-control .task-list-indicator::before{position:absolute;top:.15em;left:-1.5em;width:1.25em;height:1.25em;background-color:var(--md-default-fg-color--lightest);mask-image:var(--md-tasklist-icon);content:\"\"}[dir=rtl] .md-typeset .task-list-control .task-list-indicator::before{right:-1.5em;left:initial}.md-typeset .task-list-control [type=checkbox]:checked+.task-list-indicator::before{background-color:#00e676;mask-image:var(--md-tasklist-icon--checked)}.md-typeset .task-list-control [type=checkbox]{z-index:-1;opacity:0}","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// stylelint-disable no-duplicate-selectors\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Enforce correct box model\nhtml {\n  box-sizing: border-box;\n}\n\n// All elements shall inherit the document default\n*,\n*::before,\n*::after {\n  box-sizing: inherit;\n}\n\n// Prevent adjustments of font size after orientation changes in IE and iOS\nhtml {\n  text-size-adjust: none;\n}\n\n// Remove margin in all browsers\nbody {\n  margin: 0;\n}\n\n// Reset horizontal rules in FF\nhr {\n  box-sizing: content-box;\n  overflow: visible;\n}\n\n// Reset tap outlines on iOS and Android\na,\nbutton,\nlabel,\ninput {\n  -webkit-tap-highlight-color: transparent;\n}\n\n// Reset link styles\na {\n  color: inherit;\n  text-decoration: none;\n}\n\n// Normalize font-size in all browsers\nsmall {\n  font-size: 80%;\n}\n\n// Prevent subscript and superscript from affecting line-height\nsub,\nsup {\n  position: relative;\n  font-size: 80%;\n  line-height: 0;\n  vertical-align: baseline;\n}\n\n// Correct subscript offset\nsub {\n  bottom: -0.25em;\n}\n\n// Correct superscript offset\nsup {\n  top: -0.5em;\n}\n\n// Remove borders on images\nimg {\n  border-style: none;\n}\n\n// Reset table styles\ntable {\n  border-collapse: separate;\n  border-spacing: 0;\n}\n\n// Reset table cell styles\ntd,\nth {\n  font-weight: normal; // stylelint-disable-line\n  vertical-align: top;\n}\n\n// Reset button styles\nbutton {\n  margin: 0;\n  padding: 0;\n  font-size: inherit;\n  background: transparent;\n  border: 0;\n}\n\n// Reset input styles\ninput {\n  border: 0;\n  outline: 0;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Color definitions\n:root {\n\n  // Default color shades\n  --md-default-fg-color:               hsla(0, 0%, 0%, 0.87);\n  --md-default-fg-color--light:        hsla(0, 0%, 0%, 0.54);\n  --md-default-fg-color--lighter:      hsla(0, 0%, 0%, 0.32);\n  --md-default-fg-color--lightest:     hsla(0, 0%, 0%, 0.07);\n  --md-default-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-default-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n  --md-default-bg-color--lighter:      hsla(0, 0%, 100%, 0.3);\n  --md-default-bg-color--lightest:     hsla(0, 0%, 100%, 0.12);\n\n  // Primary color shades\n  --md-primary-fg-color:               hsla(#{hex2hsl($clr-indigo-500)}, 1);\n  --md-primary-fg-color--light:        hsla(#{hex2hsl($clr-indigo-300)}, 1);\n  --md-primary-fg-color--dark:         hsla(#{hex2hsl($clr-indigo-700)}, 1);\n  --md-primary-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n\n  // Accent color shades\n  --md-accent-fg-color:                hsla(#{hex2hsl($clr-indigo-a200)}, 1);\n  --md-accent-fg-color--transparent:   hsla(#{hex2hsl($clr-indigo-a200)}, 0.1);\n  --md-accent-bg-color:                hsla(0, 0%, 100%, 1);\n  --md-accent-bg-color--light:         hsla(0, 0%, 100%, 0.7);\n\n  // Light theme (default)\n  > * {\n\n    // Code color shades\n    --md-code-bg-color:                  hsla(0, 0%, 96%, 1);\n    --md-code-fg-color:                  hsla(200, 18%, 26%, 1);\n\n    // Text color shades\n    --md-text-color:                     var(--md-default-fg-color);\n    --md-text-link-color:                var(--md-primary-fg-color);\n\n    // Admonition color shades\n    --md-admonition-bg-color:            var(--md-default-bg-color);\n    --md-admonition-fg-color:            var(--md-default-fg-color);\n\n    // Footer color shades\n    --md-footer-bg-color:                hsla(0, 0%, 0%, 0.87);\n    --md-footer-bg-color--dark:          hsla(0, 0%, 0%, 0.32);\n    --md-footer-fg-color:                hsla(0, 0%, 100%, 1);\n    --md-footer-fg-color--light:         hsla(0, 0%, 100%, 0.7);\n    --md-footer-fg-color--lighter:       hsla(0, 0%, 100%, 0.3);\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon\n.md-icon {\n\n  // SVG defaults\n  svg {\n    display: block;\n    width: px2rem(24px);\n    height: px2rem(24px);\n    margin: 0 auto;\n    fill: currentColor;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: font definitions\n// ----------------------------------------------------------------------------\n\n// Enable font-smoothing in Webkit and FF\nbody {\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale;\n}\n\n// Default fonts\nbody,\ninput {\n  color: var(--md-text-color);\n  font-feature-settings: \"kern\", \"liga\";\n  font-family: -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;\n}\n\n// Proportionally spaced fonts\ncode,\npre,\nkbd {\n  color: var(--md-text-color);\n  font-feature-settings: \"kern\";\n  font-family: SFMono-Regular, Consolas, Menlo, monospace;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: typesetted content\n// ----------------------------------------------------------------------------\n\n// Content that is typeset - if possible, all margins, paddings and font sizes\n// should be set in ems, so nested blocks (e.g. Admonition) render correctly,\n// except headlines that should only appear on the top level and need to have\n// consistent spacing due to layout constraints.\n.md-typeset {\n  font-size: ms(0);\n  line-height: 1.6;\n  color-adjust: exact;\n\n  // Default spacing\n  p,\n  ul,\n  ol,\n  blockquote {\n    margin: 1em 0;\n  }\n\n  // 1st level headline\n  h1 {\n    margin: 0 0 px2rem(40px);\n    color: var(--md-default-fg-color--light);\n    font-weight: 300;\n    font-size: ms(3);\n    line-height: 1.3;\n    letter-spacing: -0.01em;\n  }\n\n  // 2nd level headline\n  h2 {\n    margin: px2rem(40px) 0 px2rem(16px);\n    font-weight: 300;\n    font-size: ms(2);\n    line-height: 1.4;\n    letter-spacing: -0.01em;\n  }\n\n  // 3rd level headline\n  h3 {\n    margin: px2rem(32px) 0 px2rem(16px);\n    font-weight: 400;\n    font-size: ms(1);\n    line-height: 1.5;\n    letter-spacing: -0.01em;\n  }\n\n  // 3rd level headline following an 2nd level headline\n  h2 + h3 {\n    margin-top: px2rem(16px);\n  }\n\n  // 4th level headline\n  h4 {\n    margin: px2rem(16px) 0;\n    font-weight: 700;\n    font-size: ms(0);\n    letter-spacing: -0.01em;\n  }\n\n  // 5th and 6th level headline\n  h5,\n  h6 {\n    margin: px2rem(16px) 0;\n    color: var(--md-default-fg-color--light);\n    font-weight: 700;\n    font-size: ms(-1);\n    letter-spacing: -0.01em;\n  }\n\n  // Overrides for 5th level headline\n  h5 {\n    text-transform: uppercase;\n  }\n\n  // Horizontal separators\n  hr {\n    margin: 1.5em 0;\n    border-bottom: px2rem(1px) dotted var(--md-default-fg-color--lighter);\n  }\n\n  // Links\n  a {\n    color: var(--md-text-link-color);\n    word-break: break-word;\n\n    // Also enable color transition on pseudo elements\n    &,\n    &::before {\n      transition: color 125ms;\n    }\n\n    // Focused or hover links\n    &:focus,\n    &:hover {\n      color: var(--md-accent-fg-color);\n    }\n  }\n\n  // Code blocks\n  code,\n  pre,\n  kbd {\n    color: var(--md-code-fg-color);\n    direction: ltr;\n\n    // Wrap text and hide scollbars\n    @media print {\n      white-space: pre-wrap;\n    }\n  }\n\n  // Inline code blocks\n  code {\n    padding: 0 px2em(4px, 13.6px);\n    font-size: px2em(13.6px);\n    word-break: break-word;\n    background-color: var(--md-code-bg-color);\n    border-radius: px2rem(2px);\n    box-decoration-break: clone;\n  }\n\n  // Disable containing block inside headlines\n  h1 code,\n  h2 code,\n  h3 code,\n  h4 code,\n  h5 code,\n  h6 code {\n    margin: initial;\n    padding: initial;\n    background-color: transparent;\n    box-shadow: none;\n  }\n\n  // Ensure link color in code blocks\n  a > code {\n    color: currentColor;\n  }\n\n  // Unformatted code blocks\n  pre {\n    position: relative;\n    margin: 1em 0;\n    line-height: 1.4;\n\n    // Actual container with code, overflowing\n    > code {\n      display: block;\n      margin: 0;\n      padding: px2rem(10.5px) px2em(16px, 13.6px);\n      overflow: auto;\n      word-break: normal;\n      box-shadow: none;\n      box-decoration-break: slice;\n      touch-action: auto;\n      // Override Firefox scrollbar style\n      scrollbar-width: thin;\n      scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n      // Override Firefox scrollbar hover color\n      &:hover {\n        scrollbar-color: var(--md-accent-fg-color) transparent;\n      }\n\n      // Override native scrollbar styles\n      &::-webkit-scrollbar {\n        width: px2rem(4px);\n        height: px2rem(4px);\n      }\n\n      // Scrollbar thumb\n      &::-webkit-scrollbar-thumb {\n        background-color: var(--md-default-fg-color--lighter);\n\n        // Hovered scrollbar thumb\n        &:hover {\n          background-color: var(--md-accent-fg-color);\n        }\n      }\n    }\n  }\n\n  // [mobile -]: Stretch to whole width\n  @include break-to-device(mobile) {\n\n    // Stretch top-level containers\n    > pre {\n      margin: 1em px2rem(-16px);\n\n      // Remove rounded borders\n      code {\n        border-radius: 0;\n      }\n    }\n  }\n\n  // Keystrokes\n  kbd {\n    display: inline-block;\n    padding: 0 px2em(8px, 12px);\n    font-size: px2em(12px);\n    line-height: 1.5;\n    vertical-align: text-top;\n    word-break: break-word;\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(2px) 0 px2rem(1px) var(--md-default-fg-color--lighter),\n      0 px2rem(2px) 0             var(--md-default-fg-color--lighter),\n      inset 0 px2rem(-2px) px2rem(4px) var(--md-default-bg-color);\n  }\n\n  // Text highlighting marker\n  mark {\n    padding: 0 px2em(4px, 16px);\n    word-break: break-word;\n    background-color: transparentize($clr-yellow-500, 0.5);\n    border-radius: px2rem(2px);\n    box-decoration-break: clone;\n  }\n\n  // Abbreviations\n  abbr {\n    text-decoration: none;\n    border-bottom: px2rem(1px) dotted var(--md-default-fg-color--light);\n    cursor: help;\n  }\n\n  // Small text\n  small {\n    opacity: 0.75;\n  }\n\n  // Superscript and subscript\n  sup,\n  sub {\n    margin-left: px2em(1px, 12.8px);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(1px, 12.8px);\n      margin-left: initial;\n    }\n  }\n\n  // Blockquotes, possibly nested\n  blockquote {\n    padding-left: px2rem(12px);\n    color: var(--md-default-fg-color--light);\n    border-left: px2rem(4px) solid var(--md-default-fg-color--lighter);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding-right: px2rem(12px);\n      padding-left: initial;\n      border-right: px2rem(4px) solid var(--md-default-fg-color--lighter);\n      border-left: initial;\n    }\n  }\n\n  // Unordered lists\n  ul {\n    list-style-type: disc;\n  }\n\n  // Unordered and ordered lists\n  ul,\n  ol {\n    margin-left: px2em(10px, 16px);\n    padding: 0;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(10px, 16px);\n      margin-left: initial;\n    }\n\n    // Nested ordered lists\n    ol {\n      list-style-type: lower-alpha;\n\n      // Triply nested ordered list\n      ol {\n        list-style-type: lower-roman;\n      }\n    }\n\n    // List elements\n    li {\n      margin-bottom: 0.5em;\n      margin-left: px2em(20px, 16px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2em(20px, 16px);\n        margin-left: initial;\n      }\n\n      // Decrease vertical spacing\n      p,\n      blockquote {\n        margin: 0.5em 0;\n      }\n\n      // Remove margin on last element\n      &:last-child {\n        margin-bottom: 0;\n      }\n\n      // Nested lists\n      ul,\n      ol {\n        margin: 0.5em 0 0.5em px2em(10px, 16px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          margin-right: px2em(10px, 16px);\n          margin-left: initial;\n        }\n      }\n    }\n  }\n\n  // Definition lists\n  dd {\n    margin: 1em 0 1em px2em(30px, 16px);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2em(30px, 16px);\n      margin-left: initial;\n    }\n  }\n\n  // Limit width to container, scale height proportionally\n  img,\n  svg {\n    max-width: 100%;\n    height: auto;\n  }\n\n  // Limit width to container\n  iframe {\n    max-width: 100%;\n  }\n\n  // Data tables\n  table:not([class]) {\n    display: inline-block;\n    max-width: 100%;\n    overflow: auto;\n    font-size: ms(-1);\n    background: var(--md-default-bg-color);\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n      0 0           px2rem(1px)  hsla(0, 0%, 0%, 0.1);\n    touch-action: auto;\n\n    // Due to margin collapse because of the necessary inline-block hack, we\n    // cannot increase the bottom margin on the table, so we just increase the\n    // top margin on the following element\n    & + * {\n      margin-top: 1.5em;\n    }\n\n    // Table headings and cells\n    th:not([align]),\n    td:not([align]) {\n      text-align: left;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        text-align: right;\n      }\n    }\n\n    // Table headings\n    th {\n      min-width: px2rem(100px);\n      padding: px2rem(12px) px2rem(16px);\n      color: var(--md-default-bg-color);\n      vertical-align: top;\n      background-color: var(--md-default-fg-color--light);\n\n      // Links in table headings\n      a {\n        color: inherit;\n      }\n    }\n\n    // Table cells\n    td {\n      padding: px2rem(12px) px2rem(16px);\n      vertical-align: top;\n      border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n    }\n\n    // Table rows\n    tr {\n      transition: background-color 125ms;\n\n      // Add background on hover\n      &:hover {\n        background-color: rgba(0, 0, 0, 0.035);\n        box-shadow: 0 px2rem(1px)  0 var(--md-default-bg-color) inset;\n      }\n\n      // Remove top border on first row\n      &:first-child td {\n        border-top: 0;\n      }\n    }\n\n\n    // Do not wrap links in tables\n    a {\n      word-break: normal;\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    margin: 1em px2rem(-16px);\n    overflow-x: auto;\n    touch-action: auto;\n  }\n\n  // Data table wrapper, in case JavaScript is available\n  &__table {\n    display: inline-block;\n    margin-bottom: 0.5em;\n    padding: 0 px2rem(16px);\n\n    // Data tables\n    table {\n      display: table;\n      width: 100%;\n      margin: 0;\n      overflow: hidden;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n///   $break-devices: (\n///     mobile: (\n///       portrait:  220px  479px,\n///       landscape: 480px  719px\n///     ),\n///     tablet: (\n///       portrait:  720px  959px,\n///       landscape: 960px  1219px\n///     ),\n///     screen: (\n///       small:     1220px 1599px,\n///       medium:    1600px 1999px,\n///       large:     2000px\n///     )\n///   );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n  $min: 1000000;\n  $max: 0;\n  @each $key, $value in $devices {\n    @while type-of($value) == map {\n      $value: break-select-min-max($value);\n    }\n    @if type-of($value) == list {\n      @each $number in $value {\n        @if type-of($number) == number {\n          $min: min($number, $min);\n          @if $max != null {\n            $max: max($number, $max);\n          }\n        } @else {\n          @error \"Invalid number: #{$number}\";\n        }\n      }\n    } @else if type-of($value) == number {\n      $min: min($value, $min);\n      $max: null;\n    } @else {\n      @error \"Invalid value: #{$value}\";\n    }\n  }\n  @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n  $current: $break-devices;\n  @for $n from 1 through length($device) {\n    @if type-of($current) == map {\n      $current: map-get($current, nth($device, $n));\n    } @else {\n      @error \"Invalid device map: #{$devices}\";\n    }\n  }\n  @if type-of($current) == list or type-of($current) == number {\n    $current: (default: $current);\n  }\n  @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (min-width: $breakpoint) {\n      @content;\n    }\n  } @else if type-of($breakpoint) == list {\n    $min: nth($breakpoint, 1);\n    $max: nth($breakpoint, 2);\n    @if type-of($min) == number and type-of($max) == number {\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid breakpoint: #{$breakpoint}\";\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n  @if type-of($breakpoint) == string {\n    @media screen and (orientation: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (max-aspect-ratio: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    @if nth($breakpoint, 2) != null {\n      $min: nth($breakpoint, 1);\n      $max: nth($breakpoint, 2);\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid device: #{$device}\";\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $min: nth($breakpoint, 1);\n    @media screen and (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $max: nth($breakpoint, 2);\n    @media screen and (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) drawer\n$md-toggle__drawer--checked:\n  \"[data-md-toggle=\\\"drawer\\\"]:checked ~\";\n\n// ----------------------------------------------------------------------------\n// Rules: base grid and containers\n// ----------------------------------------------------------------------------\n\n// Stretch container to viewport and set base font-sizefor simple calculations\n// based on relative ems (rems)\nhtml {\n  height: 100%;\n  // Hack: some browsers on some operating systems don't account for scroll\n  // bars when firing media queries, so we need to do this for safety. This\n  // currently impacts the table of contents component between 1220 and 1234px\n  // and is to current knowledge not fixable.\n  overflow-x: hidden;\n  // Hack: normally, we would set the base font-size to 62.5%, so we can base\n  // all calculations on 10px, but Chromium and Chrome define a minimal font\n  // size of 12 if the system language is set to Chinese. For this reason we\n  // just double the font-size, set it to 20px which seems to do the trick.\n  //\n  // See https://github.com/squidfunk/mkdocs-material/issues/911\n  font-size: 125%;\n\n  // [screen medium +]: Set base font-size to 11px\n  @include break-from-device(screen medium) {\n    font-size: 137.50%;\n  }\n\n  // [screen large +]: Set base font-size to 12px\n  @include break-from-device(screen large) {\n    font-size: 150%;\n  }\n}\n\n// Stretch body to container and leave room for footer\nbody {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%;\n  min-height: 100%;\n  // Hack: reset font-size to 10px, so the spacing for all inline elements is\n  // correct again. Otherwise the spacing would be based on 20px.\n  font-size: 0.5rem; // stylelint-disable-line unit-whitelist\n  background-color: var(--md-default-bg-color);\n\n  // [tablet portrait -]: Lock body to disable scroll bubbling\n  @include break-to-device(tablet portrait) {\n\n    // Lock body to viewport height (e.g. in search mode)\n    &[data-md-state=\"lock\"] {\n      position: fixed;\n    }\n  }\n\n  // Hack: we must not use flex, or Firefox will only print the first page\n  // see https://mzl.la/39DgR3m\n  @media print {\n    display: block;\n  }\n}\n\n// Horizontal separators\nhr {\n  display: block;\n  height: px2rem(1px);\n  padding: 0;\n  border: 0;\n}\n\n// Template-wide grid\n.md-grid {\n  max-width: px2rem(1220px);\n  margin-right: auto;\n  margin-left: auto;\n}\n\n// Content wrapper\n.md-container {\n  display: flex;\n  flex-direction: column;\n  flex-grow: 1;\n\n  // Hack: we must not use flex, or Firefox will only print the first page\n  // see https://mzl.la/39DgR3m\n  @media print {\n    display: block;\n  }\n}\n\n// The main content should stretch to maximum height in the table\n.md-main {\n  flex-grow: 1;\n\n  // Increase top spacing of content area to give typography more room\n  &__inner {\n    display: flex;\n    height: 100%;\n    margin-top: px2rem(24px + 6px);\n  }\n}\n\n// Apply ellipsis in case of overflowing text\n.md-ellipsis {\n  display: block;\n  overflow: hidden;\n  white-space: nowrap;\n  text-overflow: ellipsis;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: navigational elements\n// ----------------------------------------------------------------------------\n\n// Toggle checkbox\n.md-toggle {\n  display: none;\n}\n\n// Overlay below expanded drawer\n.md-overlay {\n  position: fixed;\n  top: 0;\n  z-index: 3;\n  width: 0;\n  height: 0;\n  background-color: hsla(0, 0%, 0%, 0.54);\n  opacity: 0;\n  transition:\n    width     0ms 250ms,\n    height    0ms 250ms,\n    opacity 250ms;\n\n  // [tablet -]: Trigger overlay\n  @include break-to-device(tablet) {\n\n    // Expanded drawer\n    #{$md-toggle__drawer--checked} & {\n      width: 100%;\n      height: 100%;\n      opacity: 1;\n      transition:\n        width     0ms,\n        height    0ms,\n        opacity 250ms;\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: skip link\n// ----------------------------------------------------------------------------\n\n// Skip link\n.md-skip {\n  position: fixed;\n  // Hack: if we don't set the negative z-index, the skip link will induce the\n  // creation of new layers when code blocks are near the header on scrolling\n  z-index: -1;\n  margin: px2rem(10px);\n  padding: px2rem(6px) px2rem(10px);\n  color: var(--md-default-bg-color);\n  font-size: ms(-1);\n  background-color: var(--md-default-fg-color);\n  border-radius: px2rem(2px);\n  transform: translateY(px2rem(8px));\n  opacity: 0;\n\n  // Show skip link on focus\n  &:focus {\n    z-index: 10;\n    transform: translateY(0);\n    opacity: 1;\n    transition:\n      transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n      opacity   175ms 75ms;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: print styles\n// ----------------------------------------------------------------------------\n\n// Add margins to page\n@page {\n  margin: 25mm;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Announcement bar\n.md-announce {\n  overflow: auto;\n  background-color: var(--md-default-fg-color);\n\n  // Actual content\n  &__inner {\n    margin: px2rem(12px) auto;\n    padding: 0 px2rem(16px);\n    color: var(--md-default-bg-color);\n    font-size: px2rem(14px);\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Button\n  .md-button {\n    display: inline-block;\n    padding: px2em(10px, 16px) px2em(32px, 16px);\n    color: var(--md-primary-fg-color);\n    font-weight: 700;\n    border: px2rem(2px) solid currentColor;\n    border-radius: px2rem(2px);\n    transition:\n      color            125ms,\n      background-color 125ms,\n      border-color     125ms;\n\n    // Primary button\n    &--primary {\n      color: var(--md-primary-bg-color);\n      background-color: var(--md-primary-fg-color);\n      border-color: var(--md-primary-fg-color);\n    }\n\n    // Focused or hovered button\n    &:focus,\n    &:hover {\n      color: var(--md-accent-bg-color);\n      background-color: var(--md-accent-fg-color);\n      border-color: var(--md-accent-fg-color);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Copy to clipboard\n.md-clipboard {\n  position: absolute;\n  top: px2rem(8px);\n  right: px2em(8px, 16px);\n  z-index: 1;\n  width: px2em(24px, 16px);\n  height: px2em(24px, 16px);\n  color: var(--md-default-fg-color--lightest);\n  border-radius: px2rem(2px);\n  cursor: pointer;\n  transition: color 125ms;\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // Slightly smaller icon\n  svg {\n    width: px2em(18px, 16px);\n    height: px2em(18px, 16px);\n  }\n\n  // Show on container hover\n  pre:hover & {\n    color: var(--md-default-fg-color--light);\n  }\n\n  // Focused or hovered icon\n  pre &:focus,\n  pre &:hover {\n    color: var(--md-accent-fg-color);\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Content container\n.md-content {\n  flex: 1;\n  max-width: 100%;\n\n  // [tablet landscape]: Decrease horizontal width\n  @include break-at-device(tablet landscape) {\n    max-width: calc(100% - #{px2rem(242px)});\n  }\n\n  // [screen +]: Decrease horizontal width\n  @include break-from-device(screen) {\n    max-width: calc(100% - #{px2rem(242px)} * 2);\n  }\n\n  // Define spacing\n  &__inner {\n    margin: 0 px2rem(16px) px2rem(24px);\n    padding-top: px2rem(12px);\n\n    // [screen +]: Increase horizontal spacing\n    @include break-from-device(screen) {\n      margin-right: px2rem(24px);\n      margin-left: px2rem(24px);\n    }\n\n    // Hack: add pseudo element for spacing, as the overflow of the content\n    // container may not be hidden due to an imminent offset error on targets\n    &::before {\n      display: block;\n      height: px2rem(8px);\n      content: \"\";\n    }\n\n    // Hack: remove bottom spacing of last element, due to margin collapse\n    > :last-child {\n      margin-bottom: 0;\n    }\n  }\n\n  // Button next to the title\n  &__button {\n    float: right;\n    margin: px2rem(8px) 0;\n    margin-left: px2rem(8px);\n    padding: 0;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      float: left;\n      margin-right: px2rem(8px);\n      margin-left: initial;\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // Override default link color for icons\n    .md-typeset & {\n      color: var(--md-default-fg-color--lighter);\n    }\n\n    // Align text with icon\n    svg {\n      display: inline;\n      vertical-align: top;\n    }\n\n    // Hide for print\n    @media print {\n      display: none;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Dialog rendered as snackbar\n.md-dialog {\n  @include z-depth(2);\n\n  position: fixed;\n  right: px2rem(16px);\n  bottom: px2rem(16px);\n  left: initial;\n  z-index: 2;\n  display: block;\n  min-width: px2rem(222px);\n  padding: px2rem(8px) px2rem(12px);\n  color: var(--md-default-bg-color);\n  font-size: px2rem(14px);\n  background: var(--md-default-fg-color);\n  border: none;\n  border-radius: px2rem(2px);\n  transform: translateY(100%);\n  opacity: 0;\n  transition:\n    transform 0ms   400ms,\n    opacity   400ms;\n\n  // Adjust for right-to-left languages\n  [dir=\"rtl\"] & {\n    right: initial;\n    left: px2rem(16px);\n  }\n\n  // Show open dialog\n  &[data-md-state=\"open\"] {\n    transform: translateY(0);\n    opacity: 1;\n    transition:\n      transform 400ms cubic-bezier(0.075, 0.85, 0.175, 1),\n      opacity   400ms;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n","//\n// Name:           Material Shadows\n// Description:    Mixins for Material Design Shadows.\n// Version:        3.0.1\n//\n// Author:         Denis Malinochkin\n// Git:            https://github.com/mrmlnc/material-shadows\n//\n// twitter:        @mrmlnc\n//\n// ------------------------------------\n\n\n// Mixins\n// ------------------------------------\n\n@mixin z-depth-transition() {\n  transition: box-shadow .28s cubic-bezier(.4, 0, .2, 1);\n}\n\n@mixin z-depth-focus() {\n  box-shadow: 0 0 8px rgba(0, 0, 0, .18), 0 8px 16px rgba(0, 0, 0, .36);\n}\n\n@mixin z-depth-2dp() {\n  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, .14),\n              0 1px 5px 0 rgba(0, 0, 0, .12),\n              0 3px 1px -2px rgba(0, 0, 0, .2);\n}\n\n@mixin z-depth-3dp() {\n  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, .14),\n              0 1px 8px 0 rgba(0, 0, 0, .12),\n              0 3px 3px -2px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-4dp() {\n  box-shadow: 0 4px 5px 0 rgba(0, 0, 0, .14),\n              0 1px 10px 0 rgba(0, 0, 0, .12),\n              0 2px 4px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-6dp() {\n  box-shadow: 0 6px 10px 0 rgba(0, 0, 0, .14),\n              0 1px 18px 0 rgba(0, 0, 0, .12),\n              0 3px 5px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-8dp() {\n  box-shadow: 0 8px 10px 1px rgba(0, 0, 0, .14),\n              0 3px 14px 2px rgba(0, 0, 0, .12),\n              0 5px 5px -3px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-16dp() {\n  box-shadow: 0 16px 24px 2px rgba(0, 0, 0, .14),\n              0  6px 30px 5px rgba(0, 0, 0, .12),\n              0  8px 10px -5px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-24dp() {\n  box-shadow: 0  9px 46px  8px rgba(0, 0, 0, .14),\n              0 24px 38px  3px rgba(0, 0, 0, .12),\n              0 11px 15px -7px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth($dp: 2) {\n  @if $dp == 2 {\n    @include z-depth-2dp();\n  } @else if $dp == 3 {\n    @include z-depth-3dp();\n  } @else if $dp == 4 {\n    @include z-depth-4dp();\n  } @else if $dp == 6 {\n    @include z-depth-6dp();\n  } @else if $dp == 8 {\n    @include z-depth-8dp();\n  } @else if $dp == 16 {\n    @include z-depth-16dp();\n  } @else if $dp == 24 {\n    @include z-depth-24dp();\n  }\n}\n\n\n// Class generator\n// ------------------------------------\n\n@mixin z-depth-classes($transition: false, $focus: false) {\n  @if $transition == true {\n    &-transition {\n      @include z-depth-transition();\n    }\n  }\n\n  @if $focus == true {\n    &-focus {\n      @include z-depth-focus();\n    }\n  }\n\n  // The available values for the shadow depth\n  @each $depth in 2, 3, 4, 6, 8, 16, 24 {\n    &-#{$depth}dp {\n      @include z-depth($depth);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Application header (stays always on top)\n.md-header {\n  position: sticky;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: 2;\n  height: px2rem(48px);\n  color: var(--md-primary-bg-color);\n  background-color: var(--md-primary-fg-color);\n  // Hack: reduce jitter by adding a transparent box shadow of the same size\n  // so the size of the layer doesn't change during animation\n  box-shadow:\n    0 0           px2rem(4px) rgba(0, 0, 0, 0),\n    0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0);\n  transition:\n    color            250ms,\n    background-color 250ms;\n\n  // Always hide shadow, in case JavaScript is not available\n  .no-js & {\n    box-shadow: none;\n    transition: none;\n  }\n\n  // Show and animate shadow\n  &[data-md-state=\"shadow\"] {\n    box-shadow:\n      0 0           px2rem(4px) rgba(0, 0, 0, 0.1),\n      0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0.2);\n    transition:\n      color            250ms,\n      background-color 250ms,\n      box-shadow       250ms;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n\n// Navigation within header\n.md-header-nav {\n  display: flex;\n  padding: 0 px2rem(4px);\n\n  // Icon buttons\n  &__button {\n    position: relative;\n    z-index: 1;\n    display: block;\n    margin: px2rem(4px);\n    padding: px2rem(8px);\n    cursor: pointer;\n    transition: opacity 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // Focused or hovered icon\n    &:focus,\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Logo\n    &.md-logo {\n      margin: px2rem(4px);\n      padding: px2rem(8px);\n\n      // Image or icon\n      img,\n      svg {\n        display: block;\n        width: px2rem(24px);\n        height: px2rem(24px);\n        fill: currentColor;\n      }\n    }\n\n    // Hide search icon, if JavaScript is not available.\n    .no-js &[for=\"__search\"] {\n      display: none;\n    }\n\n    // [tablet landscape +]: Hide the search button\n    @include break-from-device(tablet landscape) {\n\n      // Search button\n      &[for=\"__search\"] {\n        display: none;\n      }\n    }\n\n    // [tablet -]: Hide the logo\n    @include break-to-device(tablet) {\n\n      // Logo\n      &.md-logo {\n        display: none;\n      }\n    }\n\n    // [screen +]: Hide the menu button\n    @include break-from-device(screen) {\n\n      // Menu button\n      &[for=\"__drawer\"] {\n        display: none;\n      }\n    }\n  }\n\n  // Header topics\n  &__topic {\n    position: absolute;\n    width: 100%;\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   150ms;\n\n    // Page title\n    & + & {\n      z-index: -1;\n      transform: translateX(px2rem(25px));\n      opacity: 0;\n      transition:\n        transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(px2rem(-25px));\n      }\n    }\n\n    // Induce ellipsis, if no JavaScript is available\n    .no-js & {\n      position: initial;\n    }\n\n    // Hide page title as it is invisible anyway and will overflow the header\n    .no-js & + & {\n      display: none;\n    }\n  }\n\n  // Header title - set line height to match icon for correct alignment\n  &__title {\n    flex-grow: 1;\n    padding: 0 px2rem(20px);\n    font-size: px2rem(18px);\n    line-height: px2rem(48px);\n\n    // Show page title\n    &[data-md-state=\"active\"] .md-header-nav__topic {\n      z-index: -1;\n      transform: translateX(px2rem(-25px));\n      opacity: 0;\n      transition:\n        transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(px2rem(25px));\n      }\n\n      // Page title\n      & + .md-header-nav__topic {\n        z-index: 0;\n        transform: translateX(0);\n        opacity: 1;\n        transition:\n          transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n          opacity   150ms;\n        pointer-events: initial;\n      }\n    }\n\n    // Patch ellipsis\n    > .md-header-nav__ellipsis {\n      position: relative;\n      width: 100%;\n      height: 100%;\n    }\n  }\n\n  // Repository containing source\n  &__source {\n    display: none;\n\n    // [tablet landscape +]: Show the reposistory from tablet\n    @include break-from-device(tablet landscape) {\n      display: block;\n      width: px2rem(234px);\n      max-width: px2rem(234px);\n      margin-left: px2rem(20px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(20px);\n        margin-left: initial;\n      }\n    }\n\n    // [screen +]: Increase spacing of search bar\n    @include break-from-device(screen) {\n      margin-left: px2rem(28px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(28px);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Hero teaser\n.md-hero {\n  overflow: hidden;\n  color: var(--md-primary-bg-color);\n  font-size: ms(1);\n  background-color: var(--md-primary-fg-color);\n  transition: background 250ms;\n\n  // Inner wrapper\n  &__inner {\n    margin-top: px2rem(20px);\n    padding: px2rem(16px) px2rem(16px) px2rem(8px);\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   250ms;\n    transition-delay: 100ms;\n\n    // [tablet -]: Compensate for missing tabs\n    @include break-to-device(tablet) {\n      margin-top: px2rem(48px);\n      margin-bottom: px2rem(24px);\n    }\n\n    // Fade-out tabs background upon scrolling\n    [data-md-state=\"hidden\"] & {\n      transform: translateY(px2rem(12.5px));\n      opacity: 0;\n      transition:\n        transform   0ms 400ms,\n        opacity   100ms   0ms;\n      pointer-events: none;\n    }\n\n    // Adjust bottom spacing if there are no tabs\n    .md-hero--expand & {\n      margin-bottom: px2rem(24px);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Application footer\n.md-footer {\n  color: var(--md-footer-fg-color);\n  background-color: var(--md-footer-bg-color);\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n}\n\n// Navigation within footer\n.md-footer-nav {\n\n  // Set spacing\n  &__inner {\n    padding: px2rem(4px);\n    overflow: auto;\n  }\n\n  // Links to previous and next page\n  &__link {\n    display: flex;\n    padding-top: px2rem(28px);\n    padding-bottom: px2rem(8px);\n    transition: opacity 250ms;\n\n    // [tablet +]: Set proportional width\n    @include break-from-device(tablet) {\n      width: 50%;\n    }\n\n    // Focused or hovered links\n    &:focus,\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Link to previous page\n    &--prev {\n      float: left;\n      width: 25%;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: right;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n\n      // Title\n      .md-footer-nav__title {\n\n        // [mobile -]: Hide title for previous page\n        @include break-to-device(mobile) {\n          display: none;\n        }\n      }\n    }\n\n    // Link to next page\n    &--next {\n      float: right;\n      width: 75%;\n      text-align: right;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n        text-align: left;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n    }\n  }\n\n  // Link title - set line height to match icon for correct alignment\n  &__title {\n    position: relative;\n    flex-grow: 1;\n    max-width: calc(100% - #{px2rem(48px)});\n    padding: 0 px2rem(20px);\n    font-size: px2rem(18px);\n    line-height: px2rem(48px);\n  }\n\n  // Link button\n  &__button {\n    margin: px2rem(4px);\n    padding: px2rem(8px);\n  }\n\n  // Link direction\n  &__direction {\n    position: absolute;\n    right: 0;\n    left: 0;\n    margin-top: px2rem(-20px);\n    padding: 0 px2rem(20px);\n    font-size: ms(-1);\n    opacity: 0.7;\n  }\n}\n\n// Non-navigational information\n.md-footer-meta {\n  background-color: var(--md-footer-bg-color--dark);\n\n  // Set spacing\n  &__inner {\n    display: flex;\n    flex-wrap: wrap;\n    justify-content: space-between;\n    padding: px2rem(4px);\n  }\n\n  // Use a decent color for non-hovered links and ensure specificity\n  html &.md-typeset a {\n    color: var(--md-footer-fg-color--light);\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      color: var(--md-footer-fg-color);\n    }\n  }\n}\n\n// Copyright and theme information\n.md-footer-copyright {\n  width: 100%;\n  margin: auto px2rem(12px);\n  padding: px2rem(8px) 0;\n  color: var(--md-footer-fg-color--lighter);\n  font-size: ms(-1);\n\n  // [tablet portrait +]: Show next to social media links\n  @include break-from-device(tablet portrait) {\n    width: auto;\n  }\n\n  // Highlight copyright information\n  &__highlight {\n    color: var(--md-footer-fg-color--light);\n  }\n}\n\n// Social links\n.md-footer-social {\n  margin: 0 px2rem(8px);\n  padding: px2rem(4px) 0 px2rem(12px);\n\n  // [tablet portrait +]: Show next to copyright information\n  @include break-from-device(tablet portrait) {\n    padding: px2rem(12px) 0;\n  }\n\n  // Link with icon\n  &__link {\n    display: inline-block;\n    width: px2rem(32px);\n    height: px2rem(32px);\n    text-align: center;\n\n    // Adjust line-height to match height for correct alignment\n    &::before {\n      line-height: 1.9;\n    }\n\n    // Social icon\n    svg {\n      max-height: px2rem(16px);\n      vertical-align: -25%;\n      fill: currentColor;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Navigation container\n.md-nav {\n  font-size: px2rem(14px);\n  line-height: 1.3;\n\n  // List title\n  &__title {\n    display: block;\n    padding: 0 px2rem(12px);\n    overflow: hidden;\n    font-weight: 700;\n    text-overflow: ellipsis;\n\n    // Hide buttons by default\n    .md-nav__button {\n      display: none;\n\n      // Stretch images\n      img {\n        width: 100%;\n        height: auto;\n      }\n\n      // Logo\n      &.md-logo {\n\n        // Image or icon\n        img,\n        svg {\n          display: block;\n          width: px2rem(48px);\n          height: px2rem(48px);\n        }\n\n        // Icon\n        svg {\n          fill: currentColor;\n        }\n      }\n    }\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  // List item\n  &__item {\n    padding: 0 px2rem(12px);\n\n    // Add bottom spacing to last item\n    &:last-child {\n      padding-bottom: px2rem(12px);\n    }\n\n    // 2nd+ level items\n    & & {\n      padding-right: 0;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(12px);\n        padding-left: 0;\n      }\n\n      // Remove bottom spacing for nested items\n      &:last-child {\n        padding-bottom: 0;\n      }\n    }\n  }\n\n  // Link inside item\n  &__link {\n    display: block;\n    margin-top: 0.625em;\n    overflow: hidden;\n    text-overflow: ellipsis;\n    cursor: pointer;\n    transition: color 125ms;\n    scroll-snap-align: start;\n\n    // Hide link to table of contents by default - this will only match the\n    // table of contents inside the drawer below and including tablet portrait\n    html &[for=\"__toc\"] {\n      display: none;\n\n      // Hide table of contents by default\n      & ~ .md-nav {\n        display: none;\n      }\n    }\n\n    // Blurred link\n    &[data-md-state=\"blur\"] {\n      color: var(--md-default-fg-color--lighter);\n    }\n\n    // Active link\n    .md-nav__item &--active {\n      color: var(--md-text-link-color);\n    }\n\n    // Reset active color for nested list titles\n    .md-nav__item--nested > & {\n      color: inherit;\n    }\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      color: var(--md-accent-fg-color);\n    }\n  }\n\n  // Repository containing source\n  &__source {\n    display: none;\n  }\n\n  // [tablet -]: Layered navigation\n  @include break-to-device(tablet) {\n    background-color: var(--md-default-bg-color);\n\n    // Stretch primary navigation to drawer\n    &--primary,\n    &--primary .md-nav {\n      position: absolute;\n      top: 0;\n      right: 0;\n      left: 0;\n      z-index: 1;\n      display: flex;\n      flex-direction: column;\n      height: 100%;\n    }\n\n    // Adjust styles for primary navigation\n    &--primary {\n\n      // List title and item\n      .md-nav__title,\n      .md-nav__item {\n        font-size: px2rem(16px);\n        line-height: 1.5;\n      }\n\n      // List title\n      .md-nav__title {\n        position: relative;\n        height: px2rem(112px);\n        padding: px2rem(60px) px2rem(16px) px2rem(4px);\n        color: var(--md-default-fg-color--light);\n        font-weight: 400;\n        line-height: px2rem(48px);\n        white-space: nowrap;\n        background-color: var(--md-default-fg-color--lightest);\n        cursor: pointer;\n\n        // Icon\n        .md-nav__icon {\n          position: absolute;\n          top: px2rem(8px);\n          left: px2rem(8px);\n          display: block;\n          width: px2rem(24px);\n          height: px2rem(24px);\n          margin: px2rem(4px);\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            right: px2rem(8px);\n            left: initial;\n          }\n        }\n\n        // Main lists\n        ~ .md-nav__list {\n          overflow-y: auto;\n          background-color: var(--md-default-bg-color);\n          box-shadow:\n            inset 0 px2rem(1px) 0 var(--md-default-fg-color--lightest);\n          scroll-snap-type: y mandatory;\n          touch-action: pan-y;\n\n          // Remove border for first list item\n          > .md-nav__item:first-child {\n            border-top: 0;\n          }\n        }\n\n        // Site title in main navigation\n        &[for=\"__drawer\"] {\n          position: relative;\n          color: var(--md-primary-bg-color);\n          background-color: var(--md-primary-fg-color);\n\n          // Site logo\n          .md-nav__button {\n            position: absolute;\n            top: px2rem(4px);\n            left: px2rem(4px);\n            display: block;\n            margin: px2rem(4px);\n            padding: px2rem(8px);\n            font-size: px2rem(48px);\n          }\n        }\n      }\n\n      // Adjust for right-to-left languages\n      html [dir=\"rtl\"] & .md-nav__title {\n\n        // Site title in main navigation\n        &[for=\"__drawer\"] .md-nav__button {\n          right: px2rem(4px);\n          left: initial;\n        }\n      }\n\n      // List of items\n      .md-nav__list {\n        flex: 1;\n      }\n\n      // List item\n      .md-nav__item {\n        padding: 0;\n        border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          padding: 0;\n        }\n\n        // Increase spacing to account for icon\n        &--nested > .md-nav__link {\n          padding-right: px2rem(48px);\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            padding-right: px2rem(16px);\n            padding-left: px2rem(48px);\n          }\n        }\n\n        // Active parent item\n        &--active > .md-nav__link {\n          color: var(--md-text-link-color);\n\n          // Focused or hovered linl\n          &:focus,\n          &:hover {\n            color: var(--md-accent-fg-color);\n          }\n        }\n      }\n\n      // Link inside item\n      .md-nav__link {\n        position: relative;\n        margin-top: 0;\n        padding: px2rem(12px) px2rem(16px);\n\n        // Icon\n        .md-nav__icon {\n          position: absolute;\n          top: 50%;\n          right: px2rem(12px);\n          margin-top: px2rem(-12px);\n          color: inherit;\n          font-size: px2rem(24px);\n\n          // Adjust for right-to-left languages\n          [dir=\"rtl\"] & {\n            right: initial;\n            left: px2rem(12px);\n          }\n        }\n      }\n\n      // Icon\n      .md-nav__icon {\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n\n          // Flip icon vertically\n          svg {\n            transform: scale(-1);\n          }\n        }\n      }\n\n      // Table of contents inside navigation\n      .md-nav--secondary {\n\n        // Set links to static to avoid unnecessary layering\n        .md-nav__link {\n          position: static;\n        }\n\n        // Set nested navigation for table of contents to static\n        .md-nav {\n          position: static;\n          background-color: transparent;\n\n          // 3rd level link\n          .md-nav__link {\n            padding-left: px2rem(28px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(28px);\n              padding-left: initial;\n            }\n          }\n\n          // 4th level link\n          .md-nav .md-nav__link {\n            padding-left: px2rem(40px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(40px);\n              padding-left: initial;\n            }\n          }\n\n          // 5th level link\n          .md-nav .md-nav .md-nav__link {\n            padding-left: px2rem(52px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(52px);\n              padding-left: initial;\n            }\n          }\n\n          // 6th level link\n          .md-nav .md-nav .md-nav .md-nav__link {\n            padding-left: px2rem(64px);\n\n            // Adjust for right-to-left languages\n            [dir=\"rtl\"] & {\n              padding-right: px2rem(64px);\n              padding-left: initial;\n            }\n          }\n        }\n      }\n    }\n\n    // Hide nested navigation by default\n    .md-nav__toggle ~ & {\n      display: flex;\n      transform: translateX(100%);\n      opacity: 0;\n      transition:\n        transform 250ms cubic-bezier(0.8, 0, 0.6, 1),\n        opacity   125ms 50ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        transform: translateX(-100%);\n      }\n    }\n\n    // Expand nested navigation, if toggle is checked\n    .md-nav__toggle:checked ~ & {\n      transform: translateX(0);\n      opacity: 1;\n      transition:\n        transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n        opacity   125ms 125ms;\n\n      // Hack: reduce jitter\n      > .md-nav__list {\n        backface-visibility: hidden;\n      }\n    }\n  }\n\n  // [tablet portrait -]: Show table of contents in drawer\n  @include break-to-device(tablet portrait) {\n\n    // Show link to table of contents - higher specificity is necessary to\n    // display the table of contents inside the drawer\n    html &__link[for=\"__toc\"] {\n      display: block;\n      padding-right: px2rem(48px);\n\n      // Hide link to current item\n      + .md-nav__link {\n        display: none;\n      }\n\n      // Show table of contents\n      & ~ .md-nav {\n        display: flex;\n      }\n    }\n\n    // Adjust for right-to-left languages\n    html [dir=\"rtl\"] &__link {\n      padding-right: px2rem(16px);\n      padding-left: px2rem(48px);\n    }\n\n    // Repository containing source\n    &__source {\n      display: block;\n      padding: 0 px2rem(4px);\n      color: var(--md-primary-bg-color);\n      background-color: var(--md-primary-fg-color--dark);\n    }\n  }\n\n  // [tablet landscape +]: Tree-like navigation\n  @include break-from-device(tablet landscape) {\n\n    // List title\n    &--secondary .md-nav__title {\n\n      // Snap to table of contents title\n      &[for=\"__toc\"] {\n        scroll-snap-align: start;\n      }\n\n      // Hide icon\n      .md-nav__icon {\n        display: none;\n      }\n    }\n  }\n\n  // [screen +]: Tree-like navigation\n  @include break-from-device(screen) {\n    transition: max-height 250ms cubic-bezier(0.86, 0, 0.07, 1);\n\n    // List title\n    &--primary .md-nav__title {\n\n      // Snap to site title\n      &[for=\"__drawer\"] {\n        scroll-snap-align: start;\n      }\n\n      // Hide icon\n      .md-nav__icon {\n        display: none;\n      }\n    }\n\n    // Hide nested navigation by default\n    .md-nav__toggle ~ & {\n      display: none;\n    }\n\n    // Show nested navigation, if toggle is checked\n    .md-nav__toggle:checked ~ & {\n      display: block;\n    }\n\n    // Hide titles for nested navigation\n    &__item--nested > .md-nav > &__title {\n      display: none;\n    }\n\n    // Icon\n    &__icon {\n      float: right;\n      height: px2rem(18px);\n      transition: transform 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n        transform: rotate(180deg);\n      }\n\n      // Inline icon and adjust to match font size\n      svg {\n        display: inline-block;\n        width: px2rem(18px);\n        height: px2rem(18px);\n        vertical-align: px2rem(-2px);\n      }\n\n      // Rotate icon for expanded lists\n      .md-nav__item--nested .md-nav__toggle:checked ~ .md-nav__link & {\n        transform: rotate(90deg);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) search\n$md-toggle__search--checked:\n  \"[data-md-toggle=\\\"search\\\"]:checked ~ .md-header\";\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Search container\n.md-search {\n  position: relative;\n\n  // Hide search, if JavaScript is not available.\n  .no-js & {\n    display: none;\n  }\n\n  // [tablet landscape +]: Header-embedded search\n  @include break-from-device(tablet landscape) {\n    padding: px2rem(4px) 0;\n  }\n\n  // Search modal overlay\n  &__overlay {\n    z-index: 1;\n    opacity: 0;\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      position: absolute;\n      top: px2rem(4px);\n      left: px2rem(-44px);\n      width: px2rem(40px);\n      height: px2rem(40px);\n      overflow: hidden;\n      background-color: var(--md-default-bg-color);\n      border-radius: px2rem(20px);\n      transform-origin: center;\n      transition:\n        transform 300ms 100ms,\n        opacity   200ms 200ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(-44px);\n        left: initial;\n      }\n\n      // Expanded overlay\n      #{$md-toggle__search--checked} & {\n        opacity: 1;\n        transition:\n          transform 400ms,\n          opacity   100ms;\n      }\n    }\n\n    // Set scale factors\n    #{$md-toggle__search--checked} & {\n\n      // [mobile portrait -]: Scale up 45 times\n      @include break-to-device(mobile portrait) {\n        transform: scale(45);\n      }\n\n      // [mobile landscape]: Scale up 60 times\n      @include break-at-device(mobile landscape) {\n        transform: scale(60);\n      }\n\n      // [tablet portrait]: Scale up 75 times\n      @include break-at-device(tablet portrait) {\n        transform: scale(75);\n      }\n    }\n\n    // [tablet landscape +]: Overlay for better focus on search\n    @include break-from-device(tablet landscape) {\n      position: fixed;\n      top: 0;\n      left: 0;\n      width: 0;\n      height: 0;\n      background-color: hsla(0, 0%, 0%, 0.54);\n      cursor: pointer;\n      transition:\n        width     0ms 250ms,\n        height    0ms 250ms,\n        opacity 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: 0;\n        left: initial;\n      }\n\n      // Expanded overlay\n      #{$md-toggle__search--checked} & {\n        width: 100%;\n        height: 100%;\n        opacity: 1;\n        transition:\n          width     0ms,\n          height    0ms,\n          opacity 250ms;\n      }\n    }\n  }\n\n  // Search modal wrapper\n  &__inner {\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n\n    // [tablet portrait -]: Put search modal off-canvas by default\n    @include break-to-device(tablet portrait) {\n      position: fixed;\n      top: 0;\n      left: 100%;\n      z-index: 2;\n      width: 100%;\n      height: 100%;\n      transform: translateX(5%);\n      opacity: 0;\n      transition:\n        right       0ms 300ms,\n        left        0ms 300ms,\n        transform 150ms 150ms cubic-bezier(0.4, 0, 0.2, 1),\n        opacity   150ms 150ms;\n\n      // Active search modal\n      #{$md-toggle__search--checked} & {\n        left: 0;\n        transform: translateX(0);\n        opacity: 1;\n        transition:\n          right       0ms   0ms,\n          left        0ms   0ms,\n          transform 150ms 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n          opacity   150ms 150ms;\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: 0;\n          left: initial;\n        }\n      }\n\n      // Adjust for right-to-left languages\n      html [dir=\"rtl\"] & {\n        right: 100%;\n        left: initial;\n        transform: translateX(-5%);\n      }\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      position: relative;\n      float: right;\n      width: px2rem(234px);\n      padding: px2rem(2px) 0;\n      transition: width 250ms cubic-bezier(0.1, 0.7, 0.1, 1);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        float: left;\n      }\n    }\n\n    // Set maximum width\n    #{$md-toggle__search--checked} & {\n\n      // [tablet landscape]: Do not overlay title\n      @include break-at-device(tablet landscape) {\n        width: px2rem(468px);\n      }\n\n      // [screen +]: Match content width\n      @include break-from-device(screen) {\n        width: px2rem(688px);\n      }\n    }\n  }\n\n  // Search form\n  &__form {\n    position: relative;\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      border-radius: px2rem(2px);\n    }\n  }\n\n  // Search input\n  &__input {\n    position: relative;\n    z-index: 2;\n    padding: 0 px2rem(44px) 0 px2rem(72px);\n    text-overflow: ellipsis;\n    background-color: var(--md-default-bg-color);\n    transition:\n      color            250ms,\n      background-color 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding: 0 px2rem(72px) 0 px2rem(44px);\n    }\n\n    // Transition on placeholder\n    &::placeholder {\n      transition: color 250ms;\n    }\n\n    // Placeholder and icon color in active state\n    ~ .md-search__icon,\n    &::placeholder {\n      color: var(--md-default-fg-color--light);\n    }\n\n    // Remove the \"x\" rendered by Internet Explorer\n    &::-ms-clear {\n      display: none;\n    }\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      width: 100%;\n      height: px2rem(48px);\n      font-size: px2rem(18px);\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      width: 100%;\n      height: px2rem(36px);\n      padding-left: px2rem(44px);\n      color: inherit;\n      font-size: ms(0);\n      background-color: hsla(0, 0%, 0%, 0.26);\n      border-radius: px2rem(2px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n      }\n\n      // Icon color\n      + .md-search__icon {\n        color: var(--md-primary-bg-color);\n      }\n\n      // Placeholder color\n      &::placeholder {\n        color: var(--md-primary-bg-color--light);\n      }\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 100%, 0.12);\n      }\n\n      // Set light background on active search field\n      #{$md-toggle__search--checked} & {\n        color: var(--md-default-fg-color);\n        text-overflow: clip;\n        background-color: var(--md-default-bg-color);\n        border-radius: px2rem(2px) px2rem(2px) 0 0;\n\n        // Icon and placeholder color in active state\n        + .md-search__icon,\n        &::placeholder {\n          color: var(--md-default-fg-color--light);\n        }\n      }\n    }\n  }\n\n  // Icon\n  &__icon {\n    position: absolute;\n    z-index: 2;\n    width: px2rem(24px);\n    height: px2rem(24px);\n    cursor: pointer;\n    transition:\n      color   250ms,\n      opacity 250ms;\n\n    // Hovered icon\n    &:hover {\n      opacity: 0.7;\n    }\n\n    // Search icon\n    &[for=\"__search\"] {\n      top: px2rem(6px);\n      left: px2rem(10px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(10px);\n        left: initial;\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1);\n        }\n      }\n\n      // [tablet portrait -]: Full-screen search bar\n      @include break-to-device(tablet portrait) {\n        top: px2rem(12px);\n        left: px2rem(16px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: px2rem(16px);\n          left: initial;\n        }\n\n        // Hide the magnifying glass (1st icon)\n        svg:first-child {\n          display: none;\n        }\n      }\n\n      // [tablet landscape +]: Header-embedded search\n      @include break-from-device(tablet landscape) {\n        pointer-events: none;\n\n        // Hide the arrow (2nd icon)\n        svg:last-child {\n          display: none;\n        }\n      }\n    }\n\n    // Reset button\n    &[type=\"reset\"] {\n      top: px2rem(6px);\n      right: px2rem(10px);\n      transform: scale(0.75);\n      opacity: 0;\n      transition:\n        transform 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n        opacity   150ms;\n      pointer-events: none;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: initial;\n        left: px2rem(10px);\n      }\n\n      // [tablet portrait -]: Full-screen search bar\n      @include break-to-device(tablet portrait) {\n        top: px2rem(12px);\n        right: px2rem(16px);\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          right: initial;\n          left: px2rem(16px);\n        }\n      }\n\n      // Show reset button if search is active and input non-empty\n      #{$md-toggle__search--checked}\n      .md-search__input:not(:placeholder-shown) ~ & {\n        transform: scale(1);\n        opacity: 1;\n        pointer-events: initial;\n\n        // Hovered icon\n        &:hover {\n          opacity: 0.7;\n        }\n      }\n    }\n  }\n\n  // Search output container\n  &__output {\n    position: absolute;\n    z-index: 1;\n    width: 100%;\n    overflow: hidden;\n    border-radius: 0 0 px2rem(2px) px2rem(2px);\n\n    // [tablet portrait -]: Full-screen search bar\n    @include break-to-device(tablet portrait) {\n      top: px2rem(48px);\n      bottom: 0;\n    }\n\n    // [tablet landscape +]: Header-embedded search\n    @include break-from-device(tablet landscape) {\n      top: px2rem(38px);\n      opacity: 0;\n      transition: opacity 400ms;\n\n      // Show search output in active state\n      #{$md-toggle__search--checked} & {\n        @include z-depth(6);\n\n        opacity: 1;\n      }\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    height: 100%;\n    overflow-y: auto;\n    background-color: var(--md-default-bg-color);\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n    scroll-snap-type: y mandatory;\n    touch-action: pan-y;\n\n    // Mitigiate excessive repaints on non-retina devices\n    @media (max-resolution: 1dppx) {\n      transform: translateZ(0);\n    }\n\n    // [tablet landscape]: Set absolute width to omit unnecessary reflow\n    @include break-at-device(tablet landscape) {\n      width: px2rem(468px);\n    }\n\n    // [screen +]: Set absolute width to omit unnecessary reflow\n    @include break-from-device(screen) {\n      width: px2rem(688px);\n    }\n\n    // [tablet landscape +]: Limit height to viewport\n    @include break-from-device(tablet landscape) {\n      max-height: 0;\n      // Override Firefox scrollbar style\n      scrollbar-width: thin;\n      scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n      // Expand in active state\n      #{$md-toggle__search--checked} & {\n        max-height: 75vh;\n      }\n\n      // Override Firefox scrollbar hover color\n      &:hover {\n        scrollbar-color: var(--md-accent-fg-color) transparent;\n      }\n\n      // Override native scrollbar styles\n      &::-webkit-scrollbar {\n        width: px2rem(4px);\n        height: px2rem(4px);\n      }\n\n      // Scrollbar thumb\n      &::-webkit-scrollbar-thumb {\n        background-color: var(--md-default-fg-color--lighter);\n\n        // Hovered scrollbar thumb\n        &:hover {\n          background-color: var(--md-accent-fg-color);\n        }\n      }\n    }\n  }\n}\n\n// Search result\n.md-search-result {\n  color: var(--md-default-fg-color);\n  word-break: break-word;\n\n  // Search metadata\n  &__meta {\n    padding: 0 px2rem(16px);\n    color: var(--md-default-fg-color--light);\n    font-size: ms(-1);\n    line-height: px2rem(36px);\n    background-color: var(--md-default-fg-color--lightest);\n    scroll-snap-align: start;\n\n    // [tablet landscape +]: Increase left indent\n    @include break-from-device(tablet landscape) {\n      padding-left: px2rem(44px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n        padding-left: initial;\n      }\n    }\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    padding: 0;\n    list-style: none;\n  }\n\n  // List item\n  &__item {\n    box-shadow: 0 px2rem(-1px) 0 var(--md-default-fg-color--lightest);\n\n    // No border for first item\n    &:first-child {\n      box-shadow: none;\n    }\n  }\n\n  // Link inside item\n  &__link {\n    display: block;\n    outline: 0;\n    transition: background 250ms;\n    scroll-snap-align: start;\n\n    // Focused or hovered link\n    &:focus,\n    &:hover {\n      background-color: var(--md-accent-fg-color--transparent);\n\n      // Slightly transparent icon\n      .md-search-result__article::before {\n        opacity: 0.7;\n      }\n    }\n\n    // Add a little spacing on the teaser of the last link\n    &:last-child .md-search-result__teaser {\n      margin-bottom: px2rem(12px);\n    }\n  }\n\n  // Article - document or section\n  &__article {\n    position: relative;\n    padding: 0 px2rem(16px);\n    overflow: hidden;\n\n    // [tablet landscape +]: Increase left indent\n    @include break-from-device(tablet landscape) {\n      padding-left: px2rem(44px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        padding-right: px2rem(44px);\n        padding-left: px2rem(16px);\n      }\n    }\n\n    // Document\n    &--document {\n\n      // Title\n      .md-search-result__title {\n        margin: px2rem(11px) 0;\n        font-weight: 400;\n        font-size: ms(0);\n        line-height: 1.4;\n      }\n    }\n  }\n\n  // Icon\n  &__icon {\n    position: absolute;\n    left: 0;\n    margin: px2rem(2px);\n    padding: px2rem(8px);\n    color: var(--md-default-fg-color--light);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      right: 0;\n      left: initial;\n\n      // Flip icon vertically\n      svg {\n        transform: scaleX(-1);\n      }\n    }\n\n    // [tablet portrait -]: Hide page icon\n    @include break-to-device(tablet portrait) {\n      display: none;\n    }\n  }\n\n  // Title\n  &__title {\n    margin: 0.5em 0;\n    font-weight: 700;\n    font-size: ms(-1);\n    line-height: 1.4;\n  }\n\n  // stylelint-disable value-no-vendor-prefix, property-no-vendor-prefix\n\n  // Teaser\n  &__teaser {\n    display: -webkit-box;\n    max-height: px2rem(33px);\n    margin: 0.5em 0;\n    overflow: hidden;\n    color: var(--md-default-fg-color--light);\n    font-size: ms(-1);\n    line-height: 1.4;\n    text-overflow: ellipsis;\n    -webkit-box-orient: vertical;\n    -webkit-line-clamp: 2;\n\n    // [mobile -]: Increase number of lines\n    @include break-to-device(mobile) {\n      max-height: px2rem(50px);\n      -webkit-line-clamp: 3;\n    }\n\n    // [tablet landscape]: Increase number of lines\n    @include break-at-device(tablet landscape) {\n      max-height: px2rem(50px);\n      -webkit-line-clamp: 3;\n    }\n  }\n\n  // stylelint-enable value-no-vendor-prefix, property-no-vendor-prefix\n\n  // Search term highlighting\n  em {\n    font-weight: 700;\n    font-style: normal;\n    text-decoration: underline;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Active (toggled) drawer\n$md-toggle__drawer--checked:\n  \"[data-md-toggle=\\\"drawer\\\"]:checked ~ .md-container\";\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// Activate scroll snapping with delay\n@keyframes md-sidebar__scrollwrap--hack {\n  0%, 99% {\n    scroll-snap-type: none;\n  }\n\n  100% {\n    scroll-snap-type: y mandatory;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Sidebar container\n.md-sidebar {\n  position: sticky;\n  top: px2rem(48px);\n  align-self: flex-start;\n  width: px2rem(242px);\n  padding: px2rem(24px) 0;\n  overflow: hidden;\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // [tablet -]: Convert navigation to drawer\n  @include break-to-device(tablet) {\n\n    // Render primary sidebar as a slideout container\n    &--primary {\n      position: fixed;\n      top: 0;\n      left: px2rem(-242px);\n      z-index: 3;\n      width: px2rem(242px);\n      height: 100%;\n      background-color: var(--md-default-bg-color);\n      transform: translateX(0);\n      transition:\n        transform  250ms cubic-bezier(0.4, 0, 0.2, 1),\n        box-shadow 250ms;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(-242px);\n        left: initial;\n      }\n\n      // Expanded drawer\n      #{$md-toggle__drawer--checked} & {\n        @include z-depth(8);\n\n        transform: translateX(px2rem(242px));\n\n        // Adjust for right-to-left languages\n        [dir=\"rtl\"] & {\n          transform: translateX(px2rem(-242px));\n        }\n      }\n\n      // Hide overflow for nested navigation\n      .md-sidebar__scrollwrap {\n        overflow: hidden;\n      }\n    }\n  }\n\n  // Secondary sidebar with table of contents\n  &--secondary {\n    display: none;\n    order: 2;\n\n    // [tablet landscape +]: Show table of contents next to body copy\n    @include break-from-device(tablet landscape) {\n      display: block;\n\n      // Ensure smooth scrolling on iOS\n      .md-sidebar__scrollwrap {\n        touch-action: pan-y;\n      }\n    }\n  }\n\n  // Wrapper for scrolling on overflow\n  &__scrollwrap {\n    max-height: 100%;\n    margin: 0 px2rem(4px);\n    overflow-y: auto;\n    // Hack: reduce jitter\n    backface-visibility: hidden;\n    // Override Firefox scrollbar style\n    scrollbar-width: thin;\n    scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n    // Hack: Chrome 81+ exhibits a strange bug, where it scrolls the container\n    // to the bottom if `scroll-snap-type` is set on the initial render. For\n    // this reason, we use an animation to set scroll snaping with a slight\n    // delay, which seems to fix the issue (#1667).\n    .js & {\n      animation: md-sidebar__scrollwrap--hack 400ms forwards;\n    }\n\n    // [tablet -]: Adjust margins\n    @include break-to-device(tablet) {\n\n      // Stretch scrollwrap for primary sidebar\n      .md-sidebar--primary & {\n        position: absolute;\n        top: 0;\n        right: 0;\n        bottom: 0;\n        left: 0;\n        margin: 0;\n        scroll-snap-type: none;\n      }\n    }\n\n    // Override Firefox scrollbar hover color\n    &:hover {\n      scrollbar-color: var(--md-accent-fg-color) transparent;\n    }\n\n    // Override native scrollbar styles\n    &::-webkit-scrollbar {\n      width: px2rem(4px);\n      height: px2rem(4px);\n    }\n\n    // Scrollbar thumb\n    &::-webkit-scrollbar-thumb {\n      background-color: var(--md-default-fg-color--lighter);\n\n      // Hovered scrollbar thumb\n      &:hover {\n        background-color: var(--md-accent-fg-color);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// Show source facts\n@keyframes md-source__facts--done {\n  0% {\n    height: 0;\n  }\n\n  100% {\n    height: px2rem(13px);\n  }\n}\n\n// Show source fact\n@keyframes md-source__fact--done {\n  0% {\n    transform: translateY(100%);\n    opacity: 0;\n  }\n\n  50% {\n    opacity: 0;\n  }\n\n  100% {\n    transform: translateY(0%);\n    opacity: 1;\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Source container\n.md-source {\n  display: block;\n  font-size: px2rem(13px);\n  line-height: 1.2;\n  white-space: nowrap;\n  // Hack: reduce jitter\n  backface-visibility: hidden;\n  transition: opacity 250ms;\n\n  // Hovered source container\n  &:hover {\n    opacity: 0.7;\n  }\n\n  // Repository platform icon\n  &__icon {\n    display: inline-block;\n    width: px2rem(48px);\n    height: px2rem(48px);\n    vertical-align: middle;\n\n    // Align with margin only (as opposed to normal button alignment)\n    svg {\n      margin-top: px2rem(12px);\n      margin-left: px2rem(12px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(12px);\n        margin-left: initial;\n      }\n    }\n\n    // Correct alignment, if icon is present\n    + .md-source__repository {\n      margin-left: px2rem(-40px);\n      padding-left: px2rem(40px);\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        margin-right: px2rem(-40px);\n        margin-left: initial;\n        padding-right: px2rem(40px);\n        padding-left: initial;\n      }\n    }\n  }\n\n  // Repository name\n  &__repository {\n    display: inline-block;\n    max-width: calc(100% - #{px2rem(24px)});\n    margin-left: px2rem(12px);\n    overflow: hidden;\n    font-weight: 700;\n    text-overflow: ellipsis;\n    vertical-align: middle;\n  }\n\n  // Source facts (statistics etc.)\n  &__facts {\n    margin: 0;\n    padding: 0;\n    overflow: hidden;\n    font-weight: 700;\n    font-size: px2rem(11px);\n    list-style-type: none;\n    opacity: 0.75;\n\n    // Show after the data was loaded\n    [data-md-state=\"done\"] & {\n      animation: md-source__facts--done 250ms ease-in;\n    }\n  }\n\n  // Fact\n  &__fact {\n    float: left;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      float: right;\n    }\n\n    // Show after the data was loaded\n    [data-md-state=\"done\"] & {\n      animation: md-source__fact--done 400ms ease-out;\n    }\n\n    // Middle dot before fact\n    &::before {\n      margin: 0 px2rem(2px);\n      content: \"\\00B7\";\n    }\n\n    // Remove middle dot on first fact\n    &:first-child::before {\n      display: none;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Tabs with outline\n.md-tabs {\n  width: 100%;\n  overflow: auto;\n  color: var(--md-primary-bg-color);\n  background-color: var(--md-primary-fg-color);\n  transition: background 250ms;\n\n  // Omit transitions, in case JavaScript is not available\n  .no-js & {\n    transition: none;\n  }\n\n  // [tablet -]: Hide tabs for tablet and below, as they don't make any sense\n  @include break-to-device(tablet) {\n    display: none;\n  }\n\n  // Hide for print\n  @media print {\n    display: none;\n  }\n\n  // List of items\n  &__list {\n    margin: 0;\n    margin-left: px2rem(4px);\n    padding: 0;\n    white-space: nowrap;\n    list-style: none;\n    contain: content;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      margin-right: px2rem(4px);\n      margin-left: initial;\n    }\n  }\n\n  // List item\n  &__item {\n    display: inline-block;\n    height: px2rem(48px);\n    padding-right: px2rem(12px);\n    padding-left: px2rem(12px);\n  }\n\n  // Link inside item - could be defined as block elements and aligned via\n  // line height, but this would imply more repaints when scrolling\n  &__link {\n    display: block;\n    margin-top: px2rem(16px);\n    font-size: px2rem(14px);\n    opacity: 0.7;\n    transition:\n      transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n      opacity   250ms;\n\n    // Omit transitions, in case JavaScript is not available\n    .no-js & {\n      transition: none;\n    }\n\n    // Active or hovered link\n    &--active,\n    &:hover {\n      color: inherit;\n      opacity: 1;\n    }\n\n    // Delay transitions by a small amount\n    @for $i from 2 through 16 {\n      .md-tabs__item:nth-child(#{$i}) & {\n        transition-delay: 20ms * ($i - 1);\n      }\n    }\n  }\n\n  // Fade-out tabs background upon scrolling\n  &[data-md-state=\"hidden\"] {\n    pointer-events: none;\n\n    // Hide tabs upon scrolling - disable transition to minimizes repaints\n    // while scrolling down, while scrolling up seems to be okay\n    .md-tabs__link {\n      transform: translateY(50%);\n      opacity: 0;\n      transition:\n        color     250ms,\n        transform   0ms 400ms,\n        opacity   100ms;\n    }\n  }\n\n  // [screen +]: Adjust main navigation styles\n  @include break-from-device(screen) {\n\n    // Hide 1st level nested items, as they are listed in the tabs\n    ~ .md-main .md-nav--primary > .md-nav__list > .md-nav__item--nested {\n      display: none;\n    }\n\n    // Active tab\n    &--active ~ .md-main {\n\n      // Adjust 1st level styles\n      .md-nav--primary {\n\n        // Show title and remove spacing\n        .md-nav__title {\n          display: block;\n          padding: 0 px2rem(12px);\n          pointer-events: none;\n          scroll-snap-align: start;\n\n          // Hide site title\n          &[for=\"__drawer\"] {\n            display: none;\n          }\n        }\n\n        // Hide 1st level items\n        > .md-nav__list > .md-nav__item {\n          display: none;\n\n          // Show 1st level active nested items\n          &--active {\n            display: block;\n            padding: 0;\n\n            // Hide nested links\n            > .md-nav__link {\n              display: none;\n            }\n          }\n        }\n      }\n\n      // Always expand nested navigation on 2nd level\n      .md-nav[data-md-level=\"1\"] {\n        // Hack: Always show active navigation tab on breakpoint screen, despite\n        // of checkbox being checked or not. Fixes #1655.\n        display: block;\n\n        // Remove spacing on 2nd level items\n        > .md-nav__list > .md-nav__item {\n          padding: 0 px2rem(12px);\n        }\n\n        // Hide titles from 2nd level on\n        .md-nav .md-nav__title {\n          display: none;\n        }\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Admonition flavours\n///\n$admonitions: (\n  note:                       pencil $clr-blue-a200,\n  abstract summary tldr:      text-subject $clr-light-blue-a400,\n  info todo:                  information $clr-cyan-a700,\n  tip hint important:         fire $clr-teal-a700,\n  success check done:         check-circle $clr-green-a700,\n  question help faq:          help-circle $clr-light-green-a700,\n  warning caution attention:  alert $clr-orange-a400,\n  failure fail missing:       close-circle $clr-red-a200,\n  danger error:               flash-circle $clr-red-a400,\n  bug:                        bug $clr-pink-a400,\n  example:                    format-list-numbered $clr-deep-purple-a400,\n  quote cite:                 format-quote-close $clr-grey\n) !default;\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  @each $names, $props in $admonitions {\n    $name: nth($names, 1);\n    $icon: nth($props, 1);\n\n    // Inline icon through postcss in webpack\n    --md-admonition-icon--#{$name}: svg-load(\"@mdi/svg/svg/#{$icon}.svg\");\n  }\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Admonition extension\n  .admonition {\n    margin: 1.5625em 0;\n    padding: 0 px2rem(12px);\n    overflow: hidden;\n    color: var(--md-admonition-fg-color);\n    font-size: ms(-1);\n    page-break-inside: avoid;\n    background-color: var(--md-admonition-bg-color);\n    border-left: px2rem(4px) solid $clr-blue-a200;\n    border-radius: px2rem(2px);\n    box-shadow:\n      0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n      0 0           px2rem(1px)  hsla(0, 0%, 0%, 0.1);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      border-right: px2rem(4px) solid $clr-blue-a200;\n      border-left: none;\n    }\n\n    // Hack: omit rendering errors for print\n    @media print {\n      box-shadow: none;\n    }\n\n    // Adjust spacing on last element\n    html & > :last-child {\n      margin-bottom: px2rem(12px);\n    }\n\n    // Adjust margin for nested admonition blocks\n    .admonition {\n      margin: 1em 0;\n    }\n\n    // Wrapper for scrolling on overflow\n    .md-typeset__scrollwrap {\n      margin: 1em px2rem(-12px);\n    }\n\n    // Data table wrapper, in case JavaScript is available\n    .md-typeset__table {\n      padding: 0 px2rem(12px);\n    }\n  }\n\n  // Admonition title\n  .admonition-title {\n    position: relative;\n    margin: 0 px2rem(-12px);\n    padding: px2rem(8px) px2rem(12px) px2rem(8px) px2rem(40px);\n    font-weight: 700;\n    background-color: transparentize($clr-blue-a200, 0.9);\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding: px2rem(8px) px2rem(40px) px2rem(8px) px2rem(12px);\n    }\n\n    // Reset spacing, if title is the only element\n    html &:last-child {\n      margin-bottom: 0;\n    }\n\n    // Icon\n    &::before {\n      position: absolute;\n      left: px2rem(12px);\n      width: px2rem(20px);\n      height: px2rem(20px);\n      background-color: $clr-blue-a200;\n      mask-image: var(--md-admonition-icon--note);\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2rem(12px);\n        left: initial;\n      }\n    }\n\n    // Reset code inside Admonition titles\n    code {\n      margin: initial;\n      padding: initial;\n      color: currentColor;\n      background-color: transparent;\n      border-radius: initial;\n      box-shadow: none;\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: flavours\n// ----------------------------------------------------------------------------\n\n@each $names, $props in $admonitions {\n  $name: nth($names, 1);\n  $tint: nth($props, 2);\n\n  // Define base class\n  .md-typeset .admonition.#{$name} {\n    border-color: $tint;\n  }\n\n  // Define base class\n  .md-typeset .#{$name} > .admonition-title {\n    background-color: transparentize($tint, 0.9);\n\n    // Icon\n    &::before {\n      background-color: $tint;\n      mask-image: var(--md-admonition-icon--#{$name});\n    }\n  }\n\n  // Define synonyms for base class\n  @if length($names) > 1 {\n    @for $n from 2 through length($names) {\n      .#{nth($names, $n)} {\n        @extend .#{$name};\n      }\n    }\n  }\n}\n","// ==========================================================================\n//\n// Name:        UI Color Palette\n// Description: The color palette of material design.\n// Version:     2.3.1\n//\n// Author:      Denis Malinochkin\n// Git:         https://github.com/mrmlnc/material-color\n//\n// twitter:     @mrmlnc\n//\n// ==========================================================================\n\n\n//\n// List of base colors\n//\n\n// $clr-red\n// $clr-pink\n// $clr-purple\n// $clr-deep-purple\n// $clr-indigo\n// $clr-blue\n// $clr-light-blue\n// $clr-cyan\n// $clr-teal\n// $clr-green\n// $clr-light-green\n// $clr-lime\n// $clr-yellow\n// $clr-amber\n// $clr-orange\n// $clr-deep-orange\n// $clr-brown\n// $clr-grey\n// $clr-blue-grey\n// $clr-black\n// $clr-white\n\n\n//\n// Red\n//\n\n$clr-red-list: (\n  \"base\": #f44336,\n  \"50\":   #ffebee,\n  \"100\":  #ffcdd2,\n  \"200\":  #ef9a9a,\n  \"300\":  #e57373,\n  \"400\":  #ef5350,\n  \"500\":  #f44336,\n  \"600\":  #e53935,\n  \"700\":  #d32f2f,\n  \"800\":  #c62828,\n  \"900\":  #b71c1c,\n  \"a100\": #ff8a80,\n  \"a200\": #ff5252,\n  \"a400\": #ff1744,\n  \"a700\": #d50000\n);\n\n$clr-red:      map-get($clr-red-list, \"base\");\n\n$clr-red-50:   map-get($clr-red-list, \"50\");\n$clr-red-100:  map-get($clr-red-list, \"100\");\n$clr-red-200:  map-get($clr-red-list, \"200\");\n$clr-red-300:  map-get($clr-red-list, \"300\");\n$clr-red-400:  map-get($clr-red-list, \"400\");\n$clr-red-500:  map-get($clr-red-list, \"500\");\n$clr-red-600:  map-get($clr-red-list, \"600\");\n$clr-red-700:  map-get($clr-red-list, \"700\");\n$clr-red-800:  map-get($clr-red-list, \"800\");\n$clr-red-900:  map-get($clr-red-list, \"900\");\n$clr-red-a100: map-get($clr-red-list, \"a100\");\n$clr-red-a200: map-get($clr-red-list, \"a200\");\n$clr-red-a400: map-get($clr-red-list, \"a400\");\n$clr-red-a700: map-get($clr-red-list, \"a700\");\n\n\n//\n// Pink\n//\n\n$clr-pink-list: (\n  \"base\": #e91e63,\n  \"50\":   #fce4ec,\n  \"100\":  #f8bbd0,\n  \"200\":  #f48fb1,\n  \"300\":  #f06292,\n  \"400\":  #ec407a,\n  \"500\":  #e91e63,\n  \"600\":  #d81b60,\n  \"700\":  #c2185b,\n  \"800\":  #ad1457,\n  \"900\":  #880e4f,\n  \"a100\": #ff80ab,\n  \"a200\": #ff4081,\n  \"a400\": #f50057,\n  \"a700\": #c51162\n);\n\n$clr-pink:      map-get($clr-pink-list, \"base\");\n\n$clr-pink-50:   map-get($clr-pink-list, \"50\");\n$clr-pink-100:  map-get($clr-pink-list, \"100\");\n$clr-pink-200:  map-get($clr-pink-list, \"200\");\n$clr-pink-300:  map-get($clr-pink-list, \"300\");\n$clr-pink-400:  map-get($clr-pink-list, \"400\");\n$clr-pink-500:  map-get($clr-pink-list, \"500\");\n$clr-pink-600:  map-get($clr-pink-list, \"600\");\n$clr-pink-700:  map-get($clr-pink-list, \"700\");\n$clr-pink-800:  map-get($clr-pink-list, \"800\");\n$clr-pink-900:  map-get($clr-pink-list, \"900\");\n$clr-pink-a100: map-get($clr-pink-list, \"a100\");\n$clr-pink-a200: map-get($clr-pink-list, \"a200\");\n$clr-pink-a400: map-get($clr-pink-list, \"a400\");\n$clr-pink-a700: map-get($clr-pink-list, \"a700\");\n\n\n//\n// Purple\n//\n\n$clr-purple-list: (\n  \"base\": #9c27b0,\n  \"50\":   #f3e5f5,\n  \"100\":  #e1bee7,\n  \"200\":  #ce93d8,\n  \"300\":  #ba68c8,\n  \"400\":  #ab47bc,\n  \"500\":  #9c27b0,\n  \"600\":  #8e24aa,\n  \"700\":  #7b1fa2,\n  \"800\":  #6a1b9a,\n  \"900\":  #4a148c,\n  \"a100\": #ea80fc,\n  \"a200\": #e040fb,\n  \"a400\": #d500f9,\n  \"a700\": #aa00ff\n);\n\n$clr-purple:      map-get($clr-purple-list, \"base\");\n\n$clr-purple-50:   map-get($clr-purple-list, \"50\");\n$clr-purple-100:  map-get($clr-purple-list, \"100\");\n$clr-purple-200:  map-get($clr-purple-list, \"200\");\n$clr-purple-300:  map-get($clr-purple-list, \"300\");\n$clr-purple-400:  map-get($clr-purple-list, \"400\");\n$clr-purple-500:  map-get($clr-purple-list, \"500\");\n$clr-purple-600:  map-get($clr-purple-list, \"600\");\n$clr-purple-700:  map-get($clr-purple-list, \"700\");\n$clr-purple-800:  map-get($clr-purple-list, \"800\");\n$clr-purple-900:  map-get($clr-purple-list, \"900\");\n$clr-purple-a100: map-get($clr-purple-list, \"a100\");\n$clr-purple-a200: map-get($clr-purple-list, \"a200\");\n$clr-purple-a400: map-get($clr-purple-list, \"a400\");\n$clr-purple-a700: map-get($clr-purple-list, \"a700\");\n\n\n//\n// Deep purple\n//\n\n$clr-deep-purple-list: (\n  \"base\": #673ab7,\n  \"50\":   #ede7f6,\n  \"100\":  #d1c4e9,\n  \"200\":  #b39ddb,\n  \"300\":  #9575cd,\n  \"400\":  #7e57c2,\n  \"500\":  #673ab7,\n  \"600\":  #5e35b1,\n  \"700\":  #512da8,\n  \"800\":  #4527a0,\n  \"900\":  #311b92,\n  \"a100\": #b388ff,\n  \"a200\": #7c4dff,\n  \"a400\": #651fff,\n  \"a700\": #6200ea\n);\n\n$clr-deep-purple:      map-get($clr-deep-purple-list, \"base\");\n\n$clr-deep-purple-50:   map-get($clr-deep-purple-list, \"50\");\n$clr-deep-purple-100:  map-get($clr-deep-purple-list, \"100\");\n$clr-deep-purple-200:  map-get($clr-deep-purple-list, \"200\");\n$clr-deep-purple-300:  map-get($clr-deep-purple-list, \"300\");\n$clr-deep-purple-400:  map-get($clr-deep-purple-list, \"400\");\n$clr-deep-purple-500:  map-get($clr-deep-purple-list, \"500\");\n$clr-deep-purple-600:  map-get($clr-deep-purple-list, \"600\");\n$clr-deep-purple-700:  map-get($clr-deep-purple-list, \"700\");\n$clr-deep-purple-800:  map-get($clr-deep-purple-list, \"800\");\n$clr-deep-purple-900:  map-get($clr-deep-purple-list, \"900\");\n$clr-deep-purple-a100: map-get($clr-deep-purple-list, \"a100\");\n$clr-deep-purple-a200: map-get($clr-deep-purple-list, \"a200\");\n$clr-deep-purple-a400: map-get($clr-deep-purple-list, \"a400\");\n$clr-deep-purple-a700: map-get($clr-deep-purple-list, \"a700\");\n\n\n//\n// Indigo\n//\n\n$clr-indigo-list: (\n  \"base\": #3f51b5,\n  \"50\":   #e8eaf6,\n  \"100\":  #c5cae9,\n  \"200\":  #9fa8da,\n  \"300\":  #7986cb,\n  \"400\":  #5c6bc0,\n  \"500\":  #3f51b5,\n  \"600\":  #3949ab,\n  \"700\":  #303f9f,\n  \"800\":  #283593,\n  \"900\":  #1a237e,\n  \"a100\": #8c9eff,\n  \"a200\": #536dfe,\n  \"a400\": #3d5afe,\n  \"a700\": #304ffe\n);\n\n$clr-indigo:      map-get($clr-indigo-list, \"base\");\n\n$clr-indigo-50:   map-get($clr-indigo-list, \"50\");\n$clr-indigo-100:  map-get($clr-indigo-list, \"100\");\n$clr-indigo-200:  map-get($clr-indigo-list, \"200\");\n$clr-indigo-300:  map-get($clr-indigo-list, \"300\");\n$clr-indigo-400:  map-get($clr-indigo-list, \"400\");\n$clr-indigo-500:  map-get($clr-indigo-list, \"500\");\n$clr-indigo-600:  map-get($clr-indigo-list, \"600\");\n$clr-indigo-700:  map-get($clr-indigo-list, \"700\");\n$clr-indigo-800:  map-get($clr-indigo-list, \"800\");\n$clr-indigo-900:  map-get($clr-indigo-list, \"900\");\n$clr-indigo-a100: map-get($clr-indigo-list, \"a100\");\n$clr-indigo-a200: map-get($clr-indigo-list, \"a200\");\n$clr-indigo-a400: map-get($clr-indigo-list, \"a400\");\n$clr-indigo-a700: map-get($clr-indigo-list, \"a700\");\n\n\n//\n// Blue\n//\n\n$clr-blue-list: (\n  \"base\": #2196f3,\n  \"50\":   #e3f2fd,\n  \"100\":  #bbdefb,\n  \"200\":  #90caf9,\n  \"300\":  #64b5f6,\n  \"400\":  #42a5f5,\n  \"500\":  #2196f3,\n  \"600\":  #1e88e5,\n  \"700\":  #1976d2,\n  \"800\":  #1565c0,\n  \"900\":  #0d47a1,\n  \"a100\": #82b1ff,\n  \"a200\": #448aff,\n  \"a400\": #2979ff,\n  \"a700\": #2962ff\n);\n\n$clr-blue:      map-get($clr-blue-list, \"base\");\n\n$clr-blue-50:   map-get($clr-blue-list, \"50\");\n$clr-blue-100:  map-get($clr-blue-list, \"100\");\n$clr-blue-200:  map-get($clr-blue-list, \"200\");\n$clr-blue-300:  map-get($clr-blue-list, \"300\");\n$clr-blue-400:  map-get($clr-blue-list, \"400\");\n$clr-blue-500:  map-get($clr-blue-list, \"500\");\n$clr-blue-600:  map-get($clr-blue-list, \"600\");\n$clr-blue-700:  map-get($clr-blue-list, \"700\");\n$clr-blue-800:  map-get($clr-blue-list, \"800\");\n$clr-blue-900:  map-get($clr-blue-list, \"900\");\n$clr-blue-a100: map-get($clr-blue-list, \"a100\");\n$clr-blue-a200: map-get($clr-blue-list, \"a200\");\n$clr-blue-a400: map-get($clr-blue-list, \"a400\");\n$clr-blue-a700: map-get($clr-blue-list, \"a700\");\n\n\n//\n// Light Blue\n//\n\n$clr-light-blue-list: (\n  \"base\": #03a9f4,\n  \"50\":   #e1f5fe,\n  \"100\":  #b3e5fc,\n  \"200\":  #81d4fa,\n  \"300\":  #4fc3f7,\n  \"400\":  #29b6f6,\n  \"500\":  #03a9f4,\n  \"600\":  #039be5,\n  \"700\":  #0288d1,\n  \"800\":  #0277bd,\n  \"900\":  #01579b,\n  \"a100\": #80d8ff,\n  \"a200\": #40c4ff,\n  \"a400\": #00b0ff,\n  \"a700\": #0091ea\n);\n\n$clr-light-blue:      map-get($clr-light-blue-list, \"base\");\n\n$clr-light-blue-50:   map-get($clr-light-blue-list, \"50\");\n$clr-light-blue-100:  map-get($clr-light-blue-list, \"100\");\n$clr-light-blue-200:  map-get($clr-light-blue-list, \"200\");\n$clr-light-blue-300:  map-get($clr-light-blue-list, \"300\");\n$clr-light-blue-400:  map-get($clr-light-blue-list, \"400\");\n$clr-light-blue-500:  map-get($clr-light-blue-list, \"500\");\n$clr-light-blue-600:  map-get($clr-light-blue-list, \"600\");\n$clr-light-blue-700:  map-get($clr-light-blue-list, \"700\");\n$clr-light-blue-800:  map-get($clr-light-blue-list, \"800\");\n$clr-light-blue-900:  map-get($clr-light-blue-list, \"900\");\n$clr-light-blue-a100: map-get($clr-light-blue-list, \"a100\");\n$clr-light-blue-a200: map-get($clr-light-blue-list, \"a200\");\n$clr-light-blue-a400: map-get($clr-light-blue-list, \"a400\");\n$clr-light-blue-a700: map-get($clr-light-blue-list, \"a700\");\n\n\n//\n// Cyan\n//\n\n$clr-cyan-list: (\n  \"base\": #00bcd4,\n  \"50\":   #e0f7fa,\n  \"100\":  #b2ebf2,\n  \"200\":  #80deea,\n  \"300\":  #4dd0e1,\n  \"400\":  #26c6da,\n  \"500\":  #00bcd4,\n  \"600\":  #00acc1,\n  \"700\":  #0097a7,\n  \"800\":  #00838f,\n  \"900\":  #006064,\n  \"a100\": #84ffff,\n  \"a200\": #18ffff,\n  \"a400\": #00e5ff,\n  \"a700\": #00b8d4\n);\n\n$clr-cyan:      map-get($clr-cyan-list, \"base\");\n\n$clr-cyan-50:   map-get($clr-cyan-list, \"50\");\n$clr-cyan-100:  map-get($clr-cyan-list, \"100\");\n$clr-cyan-200:  map-get($clr-cyan-list, \"200\");\n$clr-cyan-300:  map-get($clr-cyan-list, \"300\");\n$clr-cyan-400:  map-get($clr-cyan-list, \"400\");\n$clr-cyan-500:  map-get($clr-cyan-list, \"500\");\n$clr-cyan-600:  map-get($clr-cyan-list, \"600\");\n$clr-cyan-700:  map-get($clr-cyan-list, \"700\");\n$clr-cyan-800:  map-get($clr-cyan-list, \"800\");\n$clr-cyan-900:  map-get($clr-cyan-list, \"900\");\n$clr-cyan-a100: map-get($clr-cyan-list, \"a100\");\n$clr-cyan-a200: map-get($clr-cyan-list, \"a200\");\n$clr-cyan-a400: map-get($clr-cyan-list, \"a400\");\n$clr-cyan-a700: map-get($clr-cyan-list, \"a700\");\n\n\n//\n// Teal\n//\n\n$clr-teal-list: (\n  \"base\": #009688,\n  \"50\":   #e0f2f1,\n  \"100\":  #b2dfdb,\n  \"200\":  #80cbc4,\n  \"300\":  #4db6ac,\n  \"400\":  #26a69a,\n  \"500\":  #009688,\n  \"600\":  #00897b,\n  \"700\":  #00796b,\n  \"800\":  #00695c,\n  \"900\":  #004d40,\n  \"a100\": #a7ffeb,\n  \"a200\": #64ffda,\n  \"a400\": #1de9b6,\n  \"a700\": #00bfa5\n);\n\n$clr-teal:      map-get($clr-teal-list, \"base\");\n\n$clr-teal-50:   map-get($clr-teal-list, \"50\");\n$clr-teal-100:  map-get($clr-teal-list, \"100\");\n$clr-teal-200:  map-get($clr-teal-list, \"200\");\n$clr-teal-300:  map-get($clr-teal-list, \"300\");\n$clr-teal-400:  map-get($clr-teal-list, \"400\");\n$clr-teal-500:  map-get($clr-teal-list, \"500\");\n$clr-teal-600:  map-get($clr-teal-list, \"600\");\n$clr-teal-700:  map-get($clr-teal-list, \"700\");\n$clr-teal-800:  map-get($clr-teal-list, \"800\");\n$clr-teal-900:  map-get($clr-teal-list, \"900\");\n$clr-teal-a100: map-get($clr-teal-list, \"a100\");\n$clr-teal-a200: map-get($clr-teal-list, \"a200\");\n$clr-teal-a400: map-get($clr-teal-list, \"a400\");\n$clr-teal-a700: map-get($clr-teal-list, \"a700\");\n\n\n//\n// Green\n//\n\n$clr-green-list: (\n  \"base\": #4caf50,\n  \"50\":   #e8f5e9,\n  \"100\":  #c8e6c9,\n  \"200\":  #a5d6a7,\n  \"300\":  #81c784,\n  \"400\":  #66bb6a,\n  \"500\":  #4caf50,\n  \"600\":  #43a047,\n  \"700\":  #388e3c,\n  \"800\":  #2e7d32,\n  \"900\":  #1b5e20,\n  \"a100\": #b9f6ca,\n  \"a200\": #69f0ae,\n  \"a400\": #00e676,\n  \"a700\": #00c853\n);\n\n$clr-green:      map-get($clr-green-list, \"base\");\n\n$clr-green-50:   map-get($clr-green-list, \"50\");\n$clr-green-100:  map-get($clr-green-list, \"100\");\n$clr-green-200:  map-get($clr-green-list, \"200\");\n$clr-green-300:  map-get($clr-green-list, \"300\");\n$clr-green-400:  map-get($clr-green-list, \"400\");\n$clr-green-500:  map-get($clr-green-list, \"500\");\n$clr-green-600:  map-get($clr-green-list, \"600\");\n$clr-green-700:  map-get($clr-green-list, \"700\");\n$clr-green-800:  map-get($clr-green-list, \"800\");\n$clr-green-900:  map-get($clr-green-list, \"900\");\n$clr-green-a100: map-get($clr-green-list, \"a100\");\n$clr-green-a200: map-get($clr-green-list, \"a200\");\n$clr-green-a400: map-get($clr-green-list, \"a400\");\n$clr-green-a700: map-get($clr-green-list, \"a700\");\n\n\n//\n// Light green\n//\n\n$clr-light-green-list: (\n  \"base\": #8bc34a,\n  \"50\":   #f1f8e9,\n  \"100\":  #dcedc8,\n  \"200\":  #c5e1a5,\n  \"300\":  #aed581,\n  \"400\":  #9ccc65,\n  \"500\":  #8bc34a,\n  \"600\":  #7cb342,\n  \"700\":  #689f38,\n  \"800\":  #558b2f,\n  \"900\":  #33691e,\n  \"a100\": #ccff90,\n  \"a200\": #b2ff59,\n  \"a400\": #76ff03,\n  \"a700\": #64dd17\n);\n\n$clr-light-green:      map-get($clr-light-green-list, \"base\");\n\n$clr-light-green-50:   map-get($clr-light-green-list, \"50\");\n$clr-light-green-100:  map-get($clr-light-green-list, \"100\");\n$clr-light-green-200:  map-get($clr-light-green-list, \"200\");\n$clr-light-green-300:  map-get($clr-light-green-list, \"300\");\n$clr-light-green-400:  map-get($clr-light-green-list, \"400\");\n$clr-light-green-500:  map-get($clr-light-green-list, \"500\");\n$clr-light-green-600:  map-get($clr-light-green-list, \"600\");\n$clr-light-green-700:  map-get($clr-light-green-list, \"700\");\n$clr-light-green-800:  map-get($clr-light-green-list, \"800\");\n$clr-light-green-900:  map-get($clr-light-green-list, \"900\");\n$clr-light-green-a100: map-get($clr-light-green-list, \"a100\");\n$clr-light-green-a200: map-get($clr-light-green-list, \"a200\");\n$clr-light-green-a400: map-get($clr-light-green-list, \"a400\");\n$clr-light-green-a700: map-get($clr-light-green-list, \"a700\");\n\n\n//\n// Lime\n//\n\n$clr-lime-list: (\n  \"base\": #cddc39,\n  \"50\":   #f9fbe7,\n  \"100\":  #f0f4c3,\n  \"200\":  #e6ee9c,\n  \"300\":  #dce775,\n  \"400\":  #d4e157,\n  \"500\":  #cddc39,\n  \"600\":  #c0ca33,\n  \"700\":  #afb42b,\n  \"800\":  #9e9d24,\n  \"900\":  #827717,\n  \"a100\": #f4ff81,\n  \"a200\": #eeff41,\n  \"a400\": #c6ff00,\n  \"a700\": #aeea00\n);\n\n$clr-lime:      map-get($clr-lime-list, \"base\");\n\n$clr-lime-50:   map-get($clr-lime-list, \"50\");\n$clr-lime-100:  map-get($clr-lime-list, \"100\");\n$clr-lime-200:  map-get($clr-lime-list, \"200\");\n$clr-lime-300:  map-get($clr-lime-list, \"300\");\n$clr-lime-400:  map-get($clr-lime-list, \"400\");\n$clr-lime-500:  map-get($clr-lime-list, \"500\");\n$clr-lime-600:  map-get($clr-lime-list, \"600\");\n$clr-lime-700:  map-get($clr-lime-list, \"700\");\n$clr-lime-800:  map-get($clr-lime-list, \"800\");\n$clr-lime-900:  map-get($clr-lime-list, \"900\");\n$clr-lime-a100: map-get($clr-lime-list, \"a100\");\n$clr-lime-a200: map-get($clr-lime-list, \"a200\");\n$clr-lime-a400: map-get($clr-lime-list, \"a400\");\n$clr-lime-a700: map-get($clr-lime-list, \"a700\");\n\n\n//\n// Yellow\n//\n\n$clr-yellow-list: (\n  \"base\": #ffeb3b,\n  \"50\":   #fffde7,\n  \"100\":  #fff9c4,\n  \"200\":  #fff59d,\n  \"300\":  #fff176,\n  \"400\":  #ffee58,\n  \"500\":  #ffeb3b,\n  \"600\":  #fdd835,\n  \"700\":  #fbc02d,\n  \"800\":  #f9a825,\n  \"900\":  #f57f17,\n  \"a100\": #ffff8d,\n  \"a200\": #ffff00,\n  \"a400\": #ffea00,\n  \"a700\": #ffd600\n);\n\n$clr-yellow:      map-get($clr-yellow-list, \"base\");\n\n$clr-yellow-50:   map-get($clr-yellow-list, \"50\");\n$clr-yellow-100:  map-get($clr-yellow-list, \"100\");\n$clr-yellow-200:  map-get($clr-yellow-list, \"200\");\n$clr-yellow-300:  map-get($clr-yellow-list, \"300\");\n$clr-yellow-400:  map-get($clr-yellow-list, \"400\");\n$clr-yellow-500:  map-get($clr-yellow-list, \"500\");\n$clr-yellow-600:  map-get($clr-yellow-list, \"600\");\n$clr-yellow-700:  map-get($clr-yellow-list, \"700\");\n$clr-yellow-800:  map-get($clr-yellow-list, \"800\");\n$clr-yellow-900:  map-get($clr-yellow-list, \"900\");\n$clr-yellow-a100: map-get($clr-yellow-list, \"a100\");\n$clr-yellow-a200: map-get($clr-yellow-list, \"a200\");\n$clr-yellow-a400: map-get($clr-yellow-list, \"a400\");\n$clr-yellow-a700: map-get($clr-yellow-list, \"a700\");\n\n\n//\n// amber\n//\n\n$clr-amber-list: (\n  \"base\": #ffc107,\n  \"50\":   #fff8e1,\n  \"100\":  #ffecb3,\n  \"200\":  #ffe082,\n  \"300\":  #ffd54f,\n  \"400\":  #ffca28,\n  \"500\":  #ffc107,\n  \"600\":  #ffb300,\n  \"700\":  #ffa000,\n  \"800\":  #ff8f00,\n  \"900\":  #ff6f00,\n  \"a100\": #ffe57f,\n  \"a200\": #ffd740,\n  \"a400\": #ffc400,\n  \"a700\": #ffab00\n);\n\n$clr-amber:      map-get($clr-amber-list, \"base\");\n\n$clr-amber-50:   map-get($clr-amber-list, \"50\");\n$clr-amber-100:  map-get($clr-amber-list, \"100\");\n$clr-amber-200:  map-get($clr-amber-list, \"200\");\n$clr-amber-300:  map-get($clr-amber-list, \"300\");\n$clr-amber-400:  map-get($clr-amber-list, \"400\");\n$clr-amber-500:  map-get($clr-amber-list, \"500\");\n$clr-amber-600:  map-get($clr-amber-list, \"600\");\n$clr-amber-700:  map-get($clr-amber-list, \"700\");\n$clr-amber-800:  map-get($clr-amber-list, \"800\");\n$clr-amber-900:  map-get($clr-amber-list, \"900\");\n$clr-amber-a100: map-get($clr-amber-list, \"a100\");\n$clr-amber-a200: map-get($clr-amber-list, \"a200\");\n$clr-amber-a400: map-get($clr-amber-list, \"a400\");\n$clr-amber-a700: map-get($clr-amber-list, \"a700\");\n\n\n//\n// Orange\n//\n\n$clr-orange-list: (\n  \"base\": #ff9800,\n  \"50\":   #fff3e0,\n  \"100\":  #ffe0b2,\n  \"200\":  #ffcc80,\n  \"300\":  #ffb74d,\n  \"400\":  #ffa726,\n  \"500\":  #ff9800,\n  \"600\":  #fb8c00,\n  \"700\":  #f57c00,\n  \"800\":  #ef6c00,\n  \"900\":  #e65100,\n  \"a100\": #ffd180,\n  \"a200\": #ffab40,\n  \"a400\": #ff9100,\n  \"a700\": #ff6d00\n);\n\n$clr-orange:      map-get($clr-orange-list, \"base\");\n\n$clr-orange-50:   map-get($clr-orange-list, \"50\");\n$clr-orange-100:  map-get($clr-orange-list, \"100\");\n$clr-orange-200:  map-get($clr-orange-list, \"200\");\n$clr-orange-300:  map-get($clr-orange-list, \"300\");\n$clr-orange-400:  map-get($clr-orange-list, \"400\");\n$clr-orange-500:  map-get($clr-orange-list, \"500\");\n$clr-orange-600:  map-get($clr-orange-list, \"600\");\n$clr-orange-700:  map-get($clr-orange-list, \"700\");\n$clr-orange-800:  map-get($clr-orange-list, \"800\");\n$clr-orange-900:  map-get($clr-orange-list, \"900\");\n$clr-orange-a100: map-get($clr-orange-list, \"a100\");\n$clr-orange-a200: map-get($clr-orange-list, \"a200\");\n$clr-orange-a400: map-get($clr-orange-list, \"a400\");\n$clr-orange-a700: map-get($clr-orange-list, \"a700\");\n\n\n//\n// Deep orange\n//\n\n$clr-deep-orange-list: (\n  \"base\": #ff5722,\n  \"50\":   #fbe9e7,\n  \"100\":  #ffccbc,\n  \"200\":  #ffab91,\n  \"300\":  #ff8a65,\n  \"400\":  #ff7043,\n  \"500\":  #ff5722,\n  \"600\":  #f4511e,\n  \"700\":  #e64a19,\n  \"800\":  #d84315,\n  \"900\":  #bf360c,\n  \"a100\": #ff9e80,\n  \"a200\": #ff6e40,\n  \"a400\": #ff3d00,\n  \"a700\": #dd2c00\n);\n\n$clr-deep-orange:      map-get($clr-deep-orange-list, \"base\");\n\n$clr-deep-orange-50:   map-get($clr-deep-orange-list, \"50\");\n$clr-deep-orange-100:  map-get($clr-deep-orange-list, \"100\");\n$clr-deep-orange-200:  map-get($clr-deep-orange-list, \"200\");\n$clr-deep-orange-300:  map-get($clr-deep-orange-list, \"300\");\n$clr-deep-orange-400:  map-get($clr-deep-orange-list, \"400\");\n$clr-deep-orange-500:  map-get($clr-deep-orange-list, \"500\");\n$clr-deep-orange-600:  map-get($clr-deep-orange-list, \"600\");\n$clr-deep-orange-700:  map-get($clr-deep-orange-list, \"700\");\n$clr-deep-orange-800:  map-get($clr-deep-orange-list, \"800\");\n$clr-deep-orange-900:  map-get($clr-deep-orange-list, \"900\");\n$clr-deep-orange-a100: map-get($clr-deep-orange-list, \"a100\");\n$clr-deep-orange-a200: map-get($clr-deep-orange-list, \"a200\");\n$clr-deep-orange-a400: map-get($clr-deep-orange-list, \"a400\");\n$clr-deep-orange-a700: map-get($clr-deep-orange-list, \"a700\");\n\n\n//\n// Brown\n//\n\n$clr-brown-list: (\n  \"base\": #795548,\n  \"50\":   #efebe9,\n  \"100\":  #d7ccc8,\n  \"200\":  #bcaaa4,\n  \"300\":  #a1887f,\n  \"400\":  #8d6e63,\n  \"500\":  #795548,\n  \"600\":  #6d4c41,\n  \"700\":  #5d4037,\n  \"800\":  #4e342e,\n  \"900\":  #3e2723,\n);\n\n$clr-brown:     map-get($clr-brown-list, \"base\");\n\n$clr-brown-50:  map-get($clr-brown-list, \"50\");\n$clr-brown-100: map-get($clr-brown-list, \"100\");\n$clr-brown-200: map-get($clr-brown-list, \"200\");\n$clr-brown-300: map-get($clr-brown-list, \"300\");\n$clr-brown-400: map-get($clr-brown-list, \"400\");\n$clr-brown-500: map-get($clr-brown-list, \"500\");\n$clr-brown-600: map-get($clr-brown-list, \"600\");\n$clr-brown-700: map-get($clr-brown-list, \"700\");\n$clr-brown-800: map-get($clr-brown-list, \"800\");\n$clr-brown-900: map-get($clr-brown-list, \"900\");\n\n\n//\n// Grey\n//\n\n$clr-grey-list: (\n  \"base\": #9e9e9e,\n  \"50\":   #fafafa,\n  \"100\":  #f5f5f5,\n  \"200\":  #eeeeee,\n  \"300\":  #e0e0e0,\n  \"400\":  #bdbdbd,\n  \"500\":  #9e9e9e,\n  \"600\":  #757575,\n  \"700\":  #616161,\n  \"800\":  #424242,\n  \"900\":  #212121,\n);\n\n$clr-grey:     map-get($clr-grey-list, \"base\");\n\n$clr-grey-50:  map-get($clr-grey-list, \"50\");\n$clr-grey-100: map-get($clr-grey-list, \"100\");\n$clr-grey-200: map-get($clr-grey-list, \"200\");\n$clr-grey-300: map-get($clr-grey-list, \"300\");\n$clr-grey-400: map-get($clr-grey-list, \"400\");\n$clr-grey-500: map-get($clr-grey-list, \"500\");\n$clr-grey-600: map-get($clr-grey-list, \"600\");\n$clr-grey-700: map-get($clr-grey-list, \"700\");\n$clr-grey-800: map-get($clr-grey-list, \"800\");\n$clr-grey-900: map-get($clr-grey-list, \"900\");\n\n\n//\n// Blue grey\n//\n\n$clr-blue-grey-list: (\n  \"base\": #607d8b,\n  \"50\":   #eceff1,\n  \"100\":  #cfd8dc,\n  \"200\":  #b0bec5,\n  \"300\":  #90a4ae,\n  \"400\":  #78909c,\n  \"500\":  #607d8b,\n  \"600\":  #546e7a,\n  \"700\":  #455a64,\n  \"800\":  #37474f,\n  \"900\":  #263238,\n);\n\n$clr-blue-grey:     map-get($clr-blue-grey-list, \"base\");\n\n$clr-blue-grey-50:  map-get($clr-blue-grey-list, \"50\");\n$clr-blue-grey-100: map-get($clr-blue-grey-list, \"100\");\n$clr-blue-grey-200: map-get($clr-blue-grey-list, \"200\");\n$clr-blue-grey-300: map-get($clr-blue-grey-list, \"300\");\n$clr-blue-grey-400: map-get($clr-blue-grey-list, \"400\");\n$clr-blue-grey-500: map-get($clr-blue-grey-list, \"500\");\n$clr-blue-grey-600: map-get($clr-blue-grey-list, \"600\");\n$clr-blue-grey-700: map-get($clr-blue-grey-list, \"700\");\n$clr-blue-grey-800: map-get($clr-blue-grey-list, \"800\");\n$clr-blue-grey-900: map-get($clr-blue-grey-list, \"900\");\n\n\n//\n// Black\n//\n\n$clr-black-list: (\n  \"base\": #000\n);\n\n$clr-black: map-get($clr-black-list, \"base\");\n\n\n//\n// White\n//\n\n$clr-white-list: (\n  \"base\": #fff\n);\n\n$clr-white: map-get($clr-white-list, \"base\");\n\n\n//\n// List for all Colors for looping\n//\n\n$clr-list-all: (\n  \"red\":         $clr-red-list,\n  \"pink\":        $clr-pink-list,\n  \"purple\":      $clr-purple-list,\n  \"deep-purple\": $clr-deep-purple-list,\n  \"indigo\":      $clr-indigo-list,\n  \"blue\":        $clr-blue-list,\n  \"light-blue\":  $clr-light-blue-list,\n  \"cyan\":        $clr-cyan-list,\n  \"teal\":        $clr-teal-list,\n  \"green\":       $clr-green-list,\n  \"light-green\": $clr-light-green-list,\n  \"lime\":        $clr-lime-list,\n  \"yellow\":      $clr-yellow-list,\n  \"amber\":       $clr-amber-list,\n  \"orange\":      $clr-orange-list,\n  \"deep-orange\": $clr-deep-orange-list,\n  \"brown\":       $clr-brown-list,\n  \"grey\":        $clr-grey-list,\n  \"blue-grey\":   $clr-blue-grey-list,\n  \"black\":       $clr-black-list,\n  \"white\":       $clr-white-list\n);\n\n\n//\n// Typography\n//\n\n$clr-ui-display-4: $clr-grey-600;\n$clr-ui-display-3: $clr-grey-600;\n$clr-ui-display-2: $clr-grey-600;\n$clr-ui-display-1: $clr-grey-600;\n$clr-ui-headline:  $clr-grey-900;\n$clr-ui-title:     $clr-grey-900;\n$clr-ui-subhead-1: $clr-grey-900;\n$clr-ui-body-2:    $clr-grey-900;\n$clr-ui-body-1:    $clr-grey-900;\n$clr-ui-caption:   $clr-grey-600;\n$clr-ui-menu:      $clr-grey-900;\n$clr-ui-button:    $clr-grey-900;\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n// Operators\n$codehilite-operator: inherit;\n$codehilite-operator-word: inherit;\n\n// Generics\n$codehilite-generic-emph: #000000;\n$codehilite-generic-error: #AA0000;\n$codehilite-generic-heading: #999999;\n$codehilite-generic-output: #888888;\n$codehilite-generic-prompt: #555555;\n$codehilite-generic-strong: inherit;\n$codehilite-generic-subheading: #AAAAAA;\n$codehilite-generic-traceback: #AA0000;\n\n// Diffs\n$codehilite-diff-deleted: #FFDDDD;\n$codehilite-diff-inserted: #DDFFDD;\n\n// Keywords\n$codehilite-keyword: #3B78E7;\n$codehilite-keyword-constant: #A71D5D;\n$codehilite-keyword-declaration: #3B78E7;\n$codehilite-keyword-namespace: #3B78E7;\n$codehilite-keyword-pseudo: #A71D5D;\n$codehilite-keyword-reserved: #3E61A2;\n$codehilite-keyword-type: #3E61A2;\n\n// Comments\n$codehilite-comment: #999999;\n$codehilite-comment-multiline: #999999;\n$codehilite-comment-preproc: #666666;\n$codehilite-comment-single: #999999;\n$codehilite-comment-shebang: #999999;\n$codehilite-comment-special: #999999;\n\n// Names\n$codehilite-name-attribute: #C2185B;\n$codehilite-name-builtin: #C2185B;\n$codehilite-name-builtin-pseudo: #3E61A2;\n$codehilite-name-class: #C2185B;\n$codehilite-name-constant: #3E61A2;\n$codehilite-name-decorator: #666666;\n$codehilite-name-entity: #666666;\n$codehilite-name-exception: #C2185B;\n$codehilite-name-function: #C2185B;\n$codehilite-name-label: #3B5179;\n$codehilite-name-namespace: #EC407A;\n$codehilite-name-tag: #3B78E7;\n$codehilite-name-variable: #3E61A2;\n$codehilite-name-variable-class: #3E61A2;\n$codehilite-name-variable-instance: #3E61A2;\n$codehilite-name-variable-global: #3E61A2;\n$codehilite-name-extension: #EC407A;\n\n// Numbers\n$codehilite-literal-number: #E74C3C;\n$codehilite-literal-number-float: #E74C3C;\n$codehilite-literal-number-hex: #E74C3C;\n$codehilite-literal-number-integer: #E74C3C;\n$codehilite-literal-number-integer-long: #E74C3C;\n$codehilite-literal-number-oct: #E74C3C;\n\n// Strings\n$codehilite-literal-string: #0D904F;\n$codehilite-literal-string-backticks: #0D904F;\n$codehilite-literal-string-char: #0D904F;\n$codehilite-literal-string-doc: #999999;\n$codehilite-literal-string-double: #0D904F;\n$codehilite-literal-string-escape: #183691;\n$codehilite-literal-string-heredoc: #183691;\n$codehilite-literal-string-interpol: #183691;\n$codehilite-literal-string-other: #183691;\n$codehilite-literal-string-regex: #009926;\n$codehilite-literal-string-single: #0D904F;\n$codehilite-literal-string-symbol: #0D904F;\n\n// Miscellaneous\n$codehilite-error: #A61717;\n$codehilite-whitespace: transparent;\n\n// ----------------------------------------------------------------------------\n// Rules: syntax highlighting\n// ----------------------------------------------------------------------------\n\n// Codehilite extension\n.codehilite {\n\n  // Operators\n  .o  { color: $codehilite-operator; }\n  .ow { color: $codehilite-operator-word; }\n\n  // Generics\n  .ge { color: $codehilite-generic-emph; }\n  .gr { color: $codehilite-generic-error; }\n  .gh { color: $codehilite-generic-heading; }\n  .go { color: $codehilite-generic-output; }\n  .gp { color: $codehilite-generic-prompt; }\n  .gs { color: $codehilite-generic-strong; }\n  .gu { color: $codehilite-generic-subheading; }\n  .gt { color: $codehilite-generic-traceback; }\n\n  // Diffs\n  .gd { background-color: $codehilite-diff-deleted; }\n  .gi { background-color: $codehilite-diff-inserted; }\n\n  // Keywords\n  .k  { color: $codehilite-keyword; }\n  .kc { color: $codehilite-keyword-constant; }\n  .kd { color: $codehilite-keyword-declaration; }\n  .kn { color: $codehilite-keyword-namespace; }\n  .kp { color: $codehilite-keyword-pseudo; }\n  .kr { color: $codehilite-keyword-reserved; }\n  .kt { color: $codehilite-keyword-type; }\n\n  // Comments\n  .c  { color: $codehilite-comment; }\n  .cm { color: $codehilite-comment-multiline; }\n  .cp { color: $codehilite-comment-preproc; }\n  .c1 { color: $codehilite-comment-single; }\n  .ch { color: $codehilite-comment-shebang; }\n  .cs { color: $codehilite-comment-special; }\n\n  // Names\n  .na { color: $codehilite-name-attribute; }\n  .nb { color: $codehilite-name-builtin; }\n  .bp { color: $codehilite-name-builtin-pseudo; }\n  .nc { color: $codehilite-name-class; }\n  .no { color: $codehilite-name-constant; }\n  .nd { color: $codehilite-name-entity; }\n  .ni { color: $codehilite-name-entity; }\n  .ne { color: $codehilite-name-exception; }\n  .nf { color: $codehilite-name-function; }\n  .nl { color: $codehilite-name-label; }\n  .nn { color: $codehilite-name-namespace; }\n  .nt { color: $codehilite-name-tag; }\n  .nv { color: $codehilite-name-variable; }\n  .vc { color: $codehilite-name-variable-class; }\n  .vg { color: $codehilite-name-variable-global; }\n  .vi { color: $codehilite-name-variable-instance; }\n  .nx { color: $codehilite-name-extension; }\n\n  // Numbers\n  .m  { color: $codehilite-literal-number; }\n  .mf { color: $codehilite-literal-number-float; }\n  .mh { color: $codehilite-literal-number-hex; }\n  .mi { color: $codehilite-literal-number-integer; }\n  .il { color: $codehilite-literal-number-integer-long; }\n  .mo { color: $codehilite-literal-number-oct; }\n\n  // Strings\n  .s  { color: $codehilite-literal-string; }\n  .sb { color: $codehilite-literal-string-backticks; }\n  .sc { color: $codehilite-literal-string-char; }\n  .sd { color: $codehilite-literal-string-doc; }\n  .s2 { color: $codehilite-literal-string-double; }\n  .se { color: $codehilite-literal-string-escape; }\n  .sh { color: $codehilite-literal-string-heredoc; }\n  .si { color: $codehilite-literal-string-interpol; }\n  .sx { color: $codehilite-literal-string-other; }\n  .sr { color: $codehilite-literal-string-regex; }\n  .s1 { color: $codehilite-literal-string-single; }\n  .ss { color: $codehilite-literal-string-symbol; }\n\n  // Miscellaneous\n  .err { color: $codehilite-error; }\n  .w { color: $codehilite-whitespace; }\n\n  // Highlighted lines\n  .hll {\n    display: block;\n    margin: 0 px2em(-16px, 13.6px);\n    padding: 0 px2em(16px, 13.6px);\n    background-color: transparentize($clr-yellow-500, 0.5);\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Block with line numbers\n.codehilitetable {\n  display: block;\n  overflow: hidden;\n\n  // Set table elements to block layout, because otherwise the whole flexbox\n  // hacking won't work correctly\n  tbody,\n  td {\n    display: block;\n    padding: 0;\n  }\n\n  // We need to use flexbox layout, because otherwise it's not possible to\n  // make the code container scroll while keeping the line numbers static\n  tr {\n    display: flex;\n  }\n\n  // The pre tags are nested inside a table, so we need to remove the\n  // margin because it collapses below all the overflows\n  pre {\n    margin: 0;\n  }\n\n  // Disable user selection, so code can be easily copied without\n  // accidentally also copying the line numbers\n  .linenos {\n    padding: px2rem(10.5px) px2em(16px, 13.6px);\n    padding-right: 0;\n    font-size: px2em(13.6px);\n    background-color: var(--md-code-bg-color);\n    user-select: none;\n  }\n\n  // Add spacing to line number container\n  .linenodiv {\n    padding-right: px2em(8px, 13.6px);\n    box-shadow: inset px2rem(-1px) 0 var(--md-default-fg-color--lightest);\n\n    // Reset spacings\n    pre {\n      color: var(--md-default-fg-color--lighter);\n      text-align: right;\n    }\n  }\n\n  // The table cell containing the code container wrapper and code should\n  // stretch horizontally to the remaining space\n  .code {\n    flex: 1;\n    overflow: hidden;\n  }\n}\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Block with line numbers\n  .codehilitetable {\n    margin: 1em 0;\n    direction: ltr;\n    border-radius: px2rem(2px);\n\n    // Remove rounded borders\n    code {\n      border-radius: 0;\n    }\n  }\n\n  // [mobile -]: Stretch to whole width\n  @include break-to-device(mobile) {\n\n    // Full-width container\n    > .codehilite {\n      margin: 1em px2rem(-16px);\n\n      // Stretch highlighted lines\n      .hll {\n        margin: 0 px2rem(-16px);\n        padding: 0 px2rem(16px);\n      }\n\n      // Remove rounded borders\n      code {\n        border-radius: 0;\n      }\n    }\n\n    // Full-width container on top-level\n    > .codehilitetable {\n      margin: 1em px2rem(-16px);\n      border-radius: 0;\n\n      // Stretch highlighted lines\n      .hll {\n        margin: 0 px2rem(-16px);\n        padding: 0 px2rem(16px);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-footnotes-icon: svg-load(\"@mdi/svg/svg/keyboard-return.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // All footnote references\n  [id^=\"fnref:\"] {\n    display: inline-block;\n\n    // Targeted anchor\n    &:target {\n      margin-top: -1 * px2rem(48px + 12px + 16px);\n      padding-top: px2rem(48px + 12px + 16px);\n      pointer-events: none;\n    }\n  }\n\n  // All footnote back references\n  [id^=\"fn:\"] {\n\n    // Add spacing to anchor for offset\n    &::before {\n      display: none;\n      height: 0;\n      content: \"\";\n    }\n\n    // Targeted anchor\n    &:target::before {\n      display: block;\n      margin-top: -1 * px2rem(48px + 12px + 10px);\n      padding-top: px2rem(48px + 12px + 10px);\n      pointer-events: none;\n    }\n  }\n\n  // Footnotes extension\n  .footnote {\n    color: var(--md-default-fg-color--light);\n    font-size: ms(-1);\n\n    // Remove additional spacing on footnotes\n    ol {\n      margin-left: 0;\n    }\n\n    // Footnote\n    li {\n      transition: color 125ms;\n\n      // Darken color for targeted footnote\n      &:target {\n        color: var(--md-default-fg-color);\n      }\n\n      // Remove spacing on first element\n      :first-child {\n        margin-top: 0;\n      }\n\n      // Make back references visible on container hover\n      &:hover  .footnote-backref,\n      &:target .footnote-backref {\n        transform: translateX(0);\n        opacity: 1;\n      }\n\n      // Hovered back reference\n      &:hover  .footnote-backref:hover {\n        color: var(--md-accent-fg-color);\n      }\n    }\n  }\n\n  // Footnote reference\n  .footnote-ref {\n    display: inline-block;\n    pointer-events: initial;\n  }\n\n  // Footnote back reference\n  .footnote-backref {\n    display: inline-block;\n    color: var(--md-text-link-color);\n    // Hack: remove Unicode arrow for icon\n    font-size: 0;\n    vertical-align: text-bottom;\n    transform: translateX(px2rem(5px));\n    opacity: 0;\n    transition:\n      color     250ms,\n      transform 250ms 250ms,\n      opacity   125ms 250ms;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      transform: translateX(px2rem(-5px));\n    }\n\n    // Back reference icon\n    &::before {\n      display: inline-block;\n      width: px2rem(16px);\n      height: px2rem(16px);\n      background-color: currentColor;\n      mask-image: var(--md-footnotes-icon);\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n\n        // Flip icon vertically\n        svg {\n          transform: scaleX(-1)\n        }\n      }\n    }\n\n    // Always show for print\n    @media print {\n      color: var(--md-text-link-color);\n      transform: translateX(0);\n      opacity: 1;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Permalinks extension\n  .headerlink {\n    display: inline-block;\n    margin-left: px2rem(10px);\n    // Hack: if we don't set visibility hidden, the text content of the node\n    // will include the headerlink character, which is why Google indexes them.\n    visibility: hidden;\n    opacity: 0;\n    transition:\n      color      250ms,\n      visibility   0ms 500ms,\n      opacity    125ms;\n\n    // Adjust for RTL languages\n    [dir=\"rtl\"] & {\n      margin-right: px2rem(10px);\n      margin-left: initial;\n    }\n\n    // Higher specificity for color due to palettes integration\n    html body & {\n      color: var(--md-default-fg-color--lighter);\n    }\n\n    // Hide for print\n    @media print {\n      display: none;\n    }\n  }\n\n  // Make permalink visible on hover\n  :hover  > .headerlink,\n  :target > .headerlink,\n  .headerlink:focus {\n    visibility: visible;\n    opacity: 1;\n    transition:\n      color      250ms,\n      visibility   0ms,\n      opacity    125ms;\n  }\n\n  // Active or targeted permalink\n  :target > .headerlink,\n  .headerlink:focus,\n  .headerlink:hover {\n    color: var(--md-accent-fg-color);\n  }\n\n  // General scroll margin offset for anything that can be targeted. Browser\n  // support is pretty decent by now, and if we wait until Edge 79+ has more\n  // adoption, we can get rid of all anchor-correction hacks.\n  :target {\n    scroll-margin-top: px2rem(48px + 24px);\n  }\n\n  // Correct anchor offset for link blurring\n  @each $level, $delta in (\n    h1 h2 h3: 8px,\n    h4: 9px,\n    h5 h6: 12px,\n  ) {\n    %#{nth($level, 1)} {\n\n      // Reset, as we use the anchor-correction hack here.\n      &:target {\n        scroll-margin-top: initial;\n      }\n\n      // Un-targeted anchor\n      &::before {\n        display: block;\n        margin-top: -1 * px2rem($delta);\n        padding-top: px2rem($delta);\n        content: \"\";\n      }\n\n      // Targeted anchor (48px from header, 12px from sidebar offset)\n      &:target::before {\n        margin-top: -1 * px2rem(48px + 12px + $delta);\n        padding-top: px2rem(48px + 12px + $delta);\n      }\n    }\n\n    // Define levels\n    @for $n from 1 through length($level) {\n      #{nth($level, $n)}[id] {\n        @extend %#{nth($level, 1)};\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// stylelint-disable selector-class-pattern\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // MathJax integration - add padding to omit vertical scrollbar\n  .MJXc-display {\n    margin: 0.75em 0;\n    padding: 0.75em 0;\n    overflow: auto;\n    touch-action: auto;\n  }\n\n  // Stretch top-level containers\n  > p > .MJXc-display {\n\n    // [mobile -]: Stretch to whole width\n    @include break-to-device(mobile) {\n      margin: 0.75em px2rem(-16px);\n      padding: 0.25em px2rem(16px);\n    }\n  }\n\n  // Remove outline on tab index\n  .MathJax_CHTML {\n    outline: 0;\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Deletions, additions and comments\n  del.critic,\n  ins.critic,\n  .critic.comment {\n    padding: 0 px2em(4px, 16px);\n    border-radius: px2rem(2px);\n    box-decoration-break: clone;\n  }\n\n  // Deletion\n  del.critic {\n    background-color: $codehilite-diff-deleted;\n  }\n\n  // Addition\n  ins.critic {\n    background-color: $codehilite-diff-inserted;\n  }\n\n  // Comment\n  .critic.comment {\n    color: $codehilite-comment;\n\n    // Comment opening mark\n    &::before {\n      content: \"/* \";\n    }\n\n    // Comment closing mark\n    &::after {\n      content: \" */\";\n    }\n  }\n\n  // Block\n  .critic.block {\n    display: block;\n    margin: 1em 0;\n    padding-right: px2rem(16px);\n    padding-left: px2rem(16px);\n    overflow: auto;\n    box-shadow: none;\n\n    // Decrease spacing on first element\n    :first-child {\n      margin-top: 0.5em;\n    }\n\n    // Decrease spacing on last element\n    :last-child {\n      margin-bottom: 0.5em;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-details-icon: svg-load(\"@mdi/svg/svg/chevron-right.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Details extension\n  details {\n    @extend .admonition;\n\n    display: block;\n    padding-top: 0;\n    overflow: visible;\n\n\n    // Rotate title icon\n    &[open] > summary::after {\n      transform: rotate(90deg);\n    }\n\n    // Remove bottom spacing for closed details\n    &:not([open]) {\n      padding-bottom: 0;\n\n      // We cannot set overflow: hidden, as the outline would not be visible,\n      // so we need to correct the border radius\n      > summary {\n        border-bottom-right-radius: px2rem(2px);\n      }\n    }\n\n    // Hack: omit margin collapse\n    &::after {\n      display: table;\n      content: \"\";\n    }\n  }\n\n  // Details title\n  summary {\n    @extend .admonition-title;\n\n    display: block;\n    min-height: px2rem(20px);\n    padding: px2rem(8px) px2rem(36px) px2rem(8px) px2rem(40px);\n    border-top-right-radius: px2rem(2px);\n    cursor: pointer;\n\n    // Adjust for right-to-left languages\n    [dir=\"rtl\"] & {\n      padding: px2rem(8px) px2rem(40px) px2rem(8px) px2rem(36px);\n    }\n\n    // Remove default details marker\n    &::-webkit-details-marker {\n      display: none;\n    }\n\n    // Details marker\n    &::after {\n      position: absolute;\n      top: px2rem(8px);\n      right: px2rem(8px);\n      width: px2rem(20px);\n      height: px2rem(20px);\n      background-color: currentColor;\n      mask-image: var(--md-details-icon);\n      transform: rotate(0deg);\n      transition: transform 250ms;\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: initial;\n        left: px2rem(8px);\n        transform: rotate(180deg);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Emojis\n  img.emojione,\n  img.twemoji,\n  img.gemoji {\n    width: px2em(18px);\n    vertical-align: -15%;\n  }\n\n  // Inlined SVG icons via mkdocs-material-extensions\n  span.twemoji {\n    display: inline-block;\n    height: px2em(18px);\n    vertical-align: text-top;\n\n    // Icon\n    svg {\n      width: px2em(18px);\n      fill: currentColor;\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// When pymdownx.superfences is enabled but codehilite is disabled,\n// pymdownx.highlight will be used. When this happens, the outer container\n// and tables get this class names by default\n.highlight {\n  @extend .codehilite;\n\n  // Inline line numbers\n  [data-linenos]::before {\n    position: sticky;\n    left: px2em(-16px, 13.6px);\n    float: left;\n    margin-right: px2em(16px, 13.6px);\n    margin-left: px2em(-16px, 13.6px);\n    padding-left: px2em(16px, 13.6px);\n    color: var(--md-default-fg-color--lighter);\n    background-color: var(--md-code-bg-color);\n    box-shadow: inset px2rem(-1px) 0 var(--md-default-fg-color--lightest);\n    content: attr(data-linenos);\n    user-select: none;\n  }\n}\n\n// Same as above, but for code blocks with line numbers enabled\n.highlighttable {\n  @extend .codehilitetable;\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Tabbed block content\n  .tabbed-content {\n    display: none;\n    order: 99;\n    width: 100%;\n    box-shadow: 0 px2rem(-1px) var(--md-default-fg-color--lightest);\n\n    // Mirror old superfences behavior, if there's only a single code block.\n    > .codehilite:only-child pre,\n    > .codehilitetable:only-child,\n    > .highlight:only-child pre,\n    > .highlighttable:only-child {\n      margin: 0;\n\n      // Remove rounded borders at the top\n      > code {\n        border-top-left-radius: 0;\n        border-top-right-radius: 0;\n      }\n    }\n\n    // Nested tabs\n    > .tabbed-set {\n      margin: 0;\n    }\n  }\n\n  // Tabbed block container\n  .tabbed-set {\n    position: relative;\n    display: flex;\n    flex-wrap: wrap;\n    margin: 1em 0;\n    border-radius: px2rem(2px);\n\n    // Hide radio buttons\n    > input {\n      display: none;\n\n      // Active tab label\n      &:checked + label {\n        color: var(--md-accent-fg-color);\n        border-color: var(--md-accent-fg-color);\n\n        // Show tabbed block content\n        & + .tabbed-content {\n          display: block;\n        }\n      }\n    }\n\n    // Tab label\n    > label {\n      z-index: 1;\n      width: auto;\n      padding: px2rem(12px) 1.25em px2rem(10px);\n      color: var(--md-default-fg-color--light);\n      font-weight: 700;\n      font-size: ms(-1);\n      border-bottom: px2rem(2px) solid transparent;\n      cursor: pointer;\n      transition: color 250ms;\n\n      // Hovered tab label\n      html &:hover {\n        color: var(--md-accent-fg-color);\n      }\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n  --md-tasklist-icon: svg-load(\"@mdi/svg/svg/checkbox-blank-circle.svg\");\n  --md-tasklist-icon--checked: svg-load(\"@mdi/svg/svg/check-circle.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n  // Remove list icon on task items\n  .task-list-item {\n    position: relative;\n    list-style-type: none;\n\n    // Make checkbox items align with normal list items, but position\n    // everything in ems for correct layout at smaller font sizes\n    [type=\"checkbox\"] {\n      position: absolute;\n      top: 0.45em;\n      left: -2em;\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: -2em;\n        left: initial;\n      }\n    }\n  }\n\n  // Wrapper for list controls, in case custom checkboxes are enabled\n  .task-list-control {\n\n    // Checkbox icon in unchecked state\n    .task-list-indicator::before {\n      position: absolute;\n      top: 0.15em;\n      left: px2em(-24px);\n      width: px2em(20px);\n      height: px2em(20px);\n      background-color: var(--md-default-fg-color--lightest);\n      mask-image: var(--md-tasklist-icon);\n      content: \"\";\n\n      // Adjust for right-to-left languages\n      [dir=\"rtl\"] & {\n        right: px2em(-24px);\n        left: initial;\n      }\n    }\n\n    // Checkbox icon in checked state\n    [type=\"checkbox\"]:checked + .task-list-indicator::before {\n      background-color: $clr-green-a400;\n      mask-image: var(--md-tasklist-icon--checked);\n    }\n\n    // Hide original checkbox behind icon\n    [type=\"checkbox\"] {\n      z-index: -1;\n      opacity: 0;\n    }\n  }\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/stylesheets/palette.a46bcfb3.min.css b/assets/stylesheets/palette.6a5ad368.min.css
similarity index 87%
rename from assets/stylesheets/palette.a46bcfb3.min.css
rename to assets/stylesheets/palette.6a5ad368.min.css
index 4f29a070b..703a84c57 100644
--- a/assets/stylesheets/palette.a46bcfb3.min.css
+++ b/assets/stylesheets/palette.6a5ad368.min.css
@@ -1,3 +1,3 @@
-[data-md-color-accent=red]{--md-accent-fg-color: hsla(348, 100%, 55%, 1);--md-accent-fg-color--transparent: hsla(348, 100%, 55%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=pink]{--md-accent-fg-color: hsla(339, 100%, 48%, 1);--md-accent-fg-color--transparent: hsla(339, 100%, 48%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=purple]{--md-accent-fg-color: hsla(291, 96%, 62%, 1);--md-accent-fg-color--transparent: hsla(291, 96%, 62%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=deep-purple]{--md-accent-fg-color: hsla(256, 100%, 65%, 1);--md-accent-fg-color--transparent: hsla(256, 100%, 65%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=indigo]{--md-accent-fg-color: hsla(231, 99%, 66%, 1);--md-accent-fg-color--transparent: hsla(231, 99%, 66%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=blue]{--md-accent-fg-color: hsla(218, 100%, 63%, 1);--md-accent-fg-color--transparent: hsla(218, 100%, 63%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=light-blue]{--md-accent-fg-color: hsla(203, 100%, 46%, 1);--md-accent-fg-color--transparent: hsla(203, 100%, 46%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=cyan]{--md-accent-fg-color: hsla(188, 100%, 42%, 1);--md-accent-fg-color--transparent: hsla(188, 100%, 42%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=teal]{--md-accent-fg-color: hsla(172, 100%, 37%, 1);--md-accent-fg-color--transparent: hsla(172, 100%, 37%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=green]{--md-accent-fg-color: hsla(145, 100%, 39%, 1);--md-accent-fg-color--transparent: hsla(145, 100%, 39%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=light-green]{--md-accent-fg-color: hsla(97, 81%, 48%, 1);--md-accent-fg-color--transparent: hsla(97, 81%, 48%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-accent=lime]{--md-accent-fg-color: hsla(75, 100%, 46%, 1);--md-accent-fg-color--transparent: hsla(75, 100%, 46%, 0.1);--md-accent-bg-color: hsla(0, 0%, 0%, 0.87);--md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54)}[data-md-color-accent=yellow]{--md-accent-fg-color: hsla(50, 100%, 50%, 1);--md-accent-fg-color--transparent: hsla(50, 100%, 50%, 0.1);--md-accent-bg-color: hsla(0, 0%, 0%, 0.87);--md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54)}[data-md-color-accent=amber]{--md-accent-fg-color: hsla(40, 100%, 50%, 1);--md-accent-fg-color--transparent: hsla(40, 100%, 50%, 0.1);--md-accent-bg-color: hsla(0, 0%, 0%, 0.87);--md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54)}[data-md-color-accent=orange]{--md-accent-fg-color: hsla(34, 100%, 50%, 1);--md-accent-fg-color--transparent: hsla(34, 100%, 50%, 0.1);--md-accent-bg-color: hsla(0, 0%, 0%, 0.87);--md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54)}[data-md-color-accent=deep-orange]{--md-accent-fg-color: hsla(14, 100%, 63%, 1);--md-accent-fg-color--transparent: hsla(14, 100%, 63%, 0.1);--md-accent-bg-color: hsla(0, 0%, 100%, 1);--md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=red]{--md-primary-fg-color: hsla(1, 83%, 63%, 1);--md-primary-fg-color--light: hsla(0, 69%, 67%, 1);--md-primary-fg-color--dark: hsla(1, 77%, 55%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=pink]{--md-primary-fg-color: hsla(340, 82%, 52%, 1);--md-primary-fg-color--light: hsla(340, 82%, 59%, 1);--md-primary-fg-color--dark: hsla(336, 78%, 43%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=purple]{--md-primary-fg-color: hsla(291, 47%, 51%, 1);--md-primary-fg-color--light: hsla(291, 47%, 60%, 1);--md-primary-fg-color--dark: hsla(287, 65%, 40%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=deep-purple]{--md-primary-fg-color: hsla(262, 47%, 55%, 1);--md-primary-fg-color--light: hsla(262, 47%, 63%, 1);--md-primary-fg-color--dark: hsla(262, 52%, 47%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=indigo]{--md-primary-fg-color: hsla(231, 48%, 48%, 1);--md-primary-fg-color--light: hsla(231, 44%, 56%, 1);--md-primary-fg-color--dark: hsla(232, 54%, 41%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=blue]{--md-primary-fg-color: hsla(207, 90%, 54%, 1);--md-primary-fg-color--light: hsla(207, 90%, 61%, 1);--md-primary-fg-color--dark: hsla(210, 79%, 46%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=light-blue]{--md-primary-fg-color: hsla(199, 98%, 48%, 1);--md-primary-fg-color--light: hsla(199, 92%, 56%, 1);--md-primary-fg-color--dark: hsla(201, 98%, 41%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=cyan]{--md-primary-fg-color: hsla(187, 100%, 42%, 1);--md-primary-fg-color--light: hsla(187, 71%, 50%, 1);--md-primary-fg-color--dark: hsla(186, 100%, 33%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 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0.54)}[data-md-color-primary=deep-orange]{--md-primary-fg-color: hsla(14, 100%, 63%, 1);--md-primary-fg-color--light: hsla(14, 100%, 70%, 1);--md-primary-fg-color--dark: hsla(14, 91%, 54%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=brown]{--md-primary-fg-color: hsla(16, 25%, 38%, 1);--md-primary-fg-color--light: hsla(16, 18%, 47%, 1);--md-primary-fg-color--dark: hsla(14, 26%, 29%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=grey]{--md-primary-fg-color: hsla(0, 0%, 46%, 1);--md-primary-fg-color--light: hsla(0, 0%, 62%, 1);--md-primary-fg-color--dark: hsla(0, 0%, 38%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=blue-grey]{--md-primary-fg-color: hsla(199, 18%, 40%, 1);--md-primary-fg-color--light: hsla(200, 18%, 46%, 1);--md-primary-fg-color--dark: hsla(199, 18%, 33%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7)}[data-md-color-primary=white]{--md-primary-fg-color: hsla(0, 0%, 100%, 1);--md-primary-fg-color--light: hsla(0, 0%, 100%, 0.7);--md-primary-fg-color--dark: hsla(0, 0%, 0%, 0.07);--md-primary-bg-color: hsla(0, 0%, 0%, 0.87);--md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);--md-typeset-a-color: hsla(231, 48%, 48%, 1)}[data-md-color-primary=white] .md-hero--expand{border-bottom:.05rem solid rgba(0,0,0,.07)}@media screen and (max-width: 76.1875em){[data-md-color-primary=white] .md-hero{border-bottom:.05rem solid rgba(0,0,0,.07)}}@media screen and (min-width: 60em){[data-md-color-primary=white] .md-search__input{background-color:rgba(0,0,0,.07)}[data-md-color-primary=white] .md-search__input+.md-search__icon{color:rgba(0,0,0,.87)}[data-md-color-primary=white] .md-search__input::-webkit-input-placeholder{color:rgba(0,0,0,.54)}[data-md-color-primary=white] .md-search__input::-moz-placeholder{color:rgba(0,0,0,.54)}[data-md-color-primary=white] .md-search__input::-ms-input-placeholder{color:rgba(0,0,0,.54)}[data-md-color-primary=white] .md-search__input::placeholder{color:rgba(0,0,0,.54)}[data-md-color-primary=white] .md-search__input:hover{background-color:rgba(0,0,0,.32)}}@media screen and (min-width: 76.25em){[data-md-color-primary=white] .md-tabs{border-bottom:.05rem solid rgba(0,0,0,.07)}}[data-md-color-primary=black]{--md-primary-fg-color: hsla(0, 0%, 0%, 1);--md-primary-fg-color--light: hsla(0, 0%, 0%, 0.54);--md-primary-fg-color--dark: hsla(0, 0%, 0%, 1);--md-primary-bg-color: hsla(0, 0%, 100%, 1);--md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);--md-typeset-a-color: hsla(231, 48%, 48%, 1)}[data-md-color-primary=black] .md-header{background-color:#000}[data-md-color-primary=black] .md-hero{background-color:#000}@media screen and (max-width: 59.9375em){[data-md-color-primary=black] .md-nav__source{background-color:rgba(0,0,0,.87)}}@media screen and (min-width: 60em){[data-md-color-primary=black] .md-search__input{background-color:rgba(255,255,255,.12)}[data-md-color-primary=black] .md-search__input:hover{background-color:rgba(255,255,255,.3)}}@media screen and (max-width: 76.1875em){html [data-md-color-primary=black] .md-nav--primary .md-nav__title[for=__drawer]{background-color:#000}}@media screen and (min-width: 76.25em){[data-md-color-primary=black] .md-tabs{background-color:#000}}[data-md-color-scheme=slate]{--md-hue: 232;--md-default-fg-color: hsla(var(--md-hue), 75%, 95%, 1);--md-default-fg-color--light: hsla(var(--md-hue), 75%, 90%, 0.62);--md-default-fg-color--lighter: hsla(var(--md-hue), 75%, 90%, 0.32);--md-default-fg-color--lightest: hsla(var(--md-hue), 75%, 90%, 0.12);--md-default-bg-color: hsla(var(--md-hue), 15%, 21%, 1);--md-default-bg-color--light: hsla(var(--md-hue), 15%, 21%, 0.54);--md-default-bg-color--lighter: hsla(var(--md-hue), 15%, 21%, 0.26);--md-default-bg-color--lightest: hsla(var(--md-hue), 15%, 21%, 0.07);--md-code-fg-color: hsla(var(--md-hue), 18%, 86%, 1);--md-code-bg-color: hsla(var(--md-hue), 15%, 15%, 1);--md-code-hl-color: hsla(218, 100%, 63%, 0.15);--md-code-hl-number-color: hsla(6, 74%, 63%, 1);--md-code-hl-special-color: hsla(340, 83%, 66%, 1);--md-code-hl-function-color: hsla(291, 57%, 65%, 1);--md-code-hl-constant-color: hsla(250, 62%, 70%, 1);--md-code-hl-keyword-color: hsla(219, 66%, 64%, 1);--md-code-hl-string-color: hsla(150, 58%, 44%, 1);--md-typeset-a-color: var(--md-primary-fg-color--light);--md-typeset-mark-color: hsla(218, 100%, 63%, 0.3);--md-typeset-kbd-color: hsla(var(--md-hue), 15%, 94%, 0.12);--md-typeset-kbd-accent-color: hsla(var(--md-hue), 15%, 94%, 0.2);--md-typeset-kbd-border-color: hsla(var(--md-hue), 15%, 14%, 1);--md-admonition-bg-color: hsla(var(--md-hue), 0%, 100%, 0.025);--md-footer-bg-color: hsla(var(--md-hue), 15%, 12%, 0.87);--md-footer-bg-color--dark: hsla(var(--md-hue), 15%, 10%, 1)}
 
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IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $color in (\n  \"red\":         $clr-red-a400,\n  \"pink\":        $clr-pink-a400,\n  \"purple\":      $clr-purple-a200,\n  \"deep-purple\": $clr-deep-purple-a200,\n  \"indigo\":      $clr-indigo-a200,\n  \"blue\":        $clr-blue-a200,\n  \"light-blue\":  $clr-light-blue-a700,\n  \"cyan\":        $clr-cyan-a700,\n  \"teal\":        $clr-teal-a700,\n  \"green\":       $clr-green-a700,\n  \"light-green\": $clr-light-green-a700,\n  \"lime\":        $clr-lime-a700,\n  \"yellow\":      $clr-yellow-a700,\n  \"amber\":       $clr-amber-a700,\n  \"orange\":      $clr-orange-a400,\n  \"deep-orange\": $clr-deep-orange-a200\n) {\n\n  // Color palette\n  [data-md-color-accent=\"#{$name}\"] {\n    --md-accent-fg-color:              hsla(#{hex2hsl($color)}, 1);\n    --md-accent-fg-color--transparent: hsla(#{hex2hsl($color)}, 0.1);\n\n    // Inverted text for lighter shades\n    @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n      --md-accent-bg-color:           hsla(0, 0%, 0%, 0.87);\n      --md-accent-bg-color--light:    hsla(0, 0%, 0%, 0.54);\n    } @else {\n      --md-accent-bg-color:           hsla(0, 0%, 100%, 1);\n      --md-accent-bg-color--light:    hsla(0, 0%, 100%, 0.7);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $colors in (\n  \"red\":         $clr-red-400         $clr-red-300         $clr-red-600,\n  \"pink\":        $clr-pink-500        $clr-pink-400        $clr-pink-700,\n  \"purple\":      $clr-purple-400      $clr-purple-300      $clr-purple-600,\n  \"deep-purple\": $clr-deep-purple-400 $clr-deep-purple-300 $clr-deep-purple-500,\n  \"indigo\":      $clr-indigo-500      $clr-indigo-400      $clr-indigo-700,\n  \"blue\":        $clr-blue-500        $clr-blue-400        $clr-blue-700,\n  \"light-blue\":  $clr-light-blue-500  $clr-light-blue-400  $clr-light-blue-700,\n  \"cyan\":        $clr-cyan-500        $clr-cyan-400        $clr-cyan-700,\n  \"teal\":        $clr-teal-500        $clr-teal-400        $clr-teal-700,\n  \"green\":       $clr-green-500       $clr-green-400       $clr-green-700,\n  \"light-green\": $clr-light-green-500 $clr-light-green-400 $clr-light-green-700,\n  \"lime\":        $clr-lime-500        $clr-lime-400        $clr-lime-700,\n  \"yellow\":      $clr-yellow-500      $clr-yellow-400      $clr-yellow-700,\n  \"amber\":       $clr-amber-500       $clr-amber-400       $clr-amber-700,\n  \"orange\":      $clr-orange-400      $clr-orange-400      $clr-orange-600,\n  \"deep-orange\": $clr-deep-orange-400 $clr-deep-orange-300 $clr-deep-orange-600,\n  \"brown\":       $clr-brown-500       $clr-brown-400       $clr-brown-700,\n  \"grey\":        $clr-grey-600        $clr-grey-500        $clr-grey-700,\n  \"blue-grey\":   $clr-blue-grey-600   $clr-blue-grey-500   $clr-blue-grey-700\n) {\n\n  // Color palette\n  [data-md-color-primary=\"#{$name}\"] {\n    --md-primary-fg-color:             hsla(#{hex2hsl(nth($colors, 1))}, 1);\n    --md-primary-fg-color--light:      hsla(#{hex2hsl(nth($colors, 2))}, 1);\n    --md-primary-fg-color--dark:       hsla(#{hex2hsl(nth($colors, 3))}, 1);\n\n    // Inverted text for lighter shades\n    @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n      --md-primary-bg-color:           hsla(0, 0%, 0%, 0.87);\n      --md-primary-bg-color--light:    hsla(0, 0%, 0%, 0.54);\n    } @else {\n      --md-primary-bg-color:           hsla(0, 0%, 100%, 1);\n      --md-primary-bg-color--light:    hsla(0, 0%, 100%, 0.7);\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: white\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"white\"] {\n  --md-primary-fg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-fg-color--light:        hsla(0, 0%, 100%, 0.7);\n  --md-primary-fg-color--dark:         hsla(0, 0%, 0%, 0.07);\n  --md-primary-bg-color:               hsla(0, 0%, 0%, 0.87);\n  --md-primary-bg-color--light:        hsla(0, 0%, 0%, 0.54);\n\n  // Typeset color shades\n  --md-typeset-a-color:                hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n  // Add a border if there are no tabs\n  .md-hero--expand {\n    border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n  }\n\n  // [tablet -]: Set bottom border for hero\n  @include break-to-device(tablet) {\n\n    // Hero teaser\n    .md-hero {\n      border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n    }\n  }\n\n  // [tablet portrait +]: Change color of search input\n  @include break-from-device(tablet landscape) {\n\n    // Search input\n    .md-search__input {\n      background-color: hsla(0, 0%, 0%, 0.07);\n\n      // Search icon color\n      + .md-search__icon {\n        color: hsla(0, 0%, 0%, 0.87);\n      }\n\n      // Placeholder color\n      &::placeholder {\n        color: hsla(0, 0%, 0%, 0.54);\n      }\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 0%, 0.32);\n      }\n    }\n  }\n\n  // [screen +]: Set bottom border for tabs\n  @include break-from-device(screen) {\n\n    // Tabs with outline\n    .md-tabs {\n      border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: black\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"black\"] {\n  --md-primary-fg-color:               hsla(0, 0%, 0%, 1);\n  --md-primary-fg-color--light:        hsla(0, 0%, 0%, 0.54);\n  --md-primary-fg-color--dark:         hsla(0, 0%, 0%, 1);\n  --md-primary-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n\n  // Text color shades\n  --md-typeset-a-color:                hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n  // Application header (stays always on top)\n  .md-header {\n    background-color: hsla(0, 0%, 0%, 1);\n  }\n\n  // Hero teaser\n  .md-hero {\n    background-color: hsla(0, 0%, 0%, 1);\n  }\n\n  // [tablet portrait -]: Layered navigation\n  @include break-to-device(tablet portrait) {\n\n    // Repository containing source\n    .md-nav__source {\n      background-color: hsla(0, 0%, 0%, 0.87);\n    }\n  }\n\n  // [tablet landscape +]: Header-embedded search\n  @include break-from-device(tablet landscape) {\n\n    // Search input\n    .md-search__input {\n      background-color: hsla(0, 0%, 100%, 0.12);\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 100%, 0.3);\n      }\n    }\n  }\n\n  // [tablet -]: Layered navigation\n  @include break-to-device(tablet) {\n\n    // Site title in main navigation\n    html & .md-nav--primary .md-nav__title[for=\"__drawer\"] {\n      background-color: hsla(0, 0%, 0%, 1);\n    }\n  }\n\n  // [screen +]: Set background color for tabs\n  @include break-from-device(screen) {\n\n    // Tabs with outline\n    .md-tabs {\n      background-color: hsla(0, 0%, 0%, 1);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n///   $break-devices: (\n///     mobile: (\n///       portrait:  220px  479px,\n///       landscape: 480px  719px\n///     ),\n///     tablet: (\n///       portrait:  720px  959px,\n///       landscape: 960px  1219px\n///     ),\n///     screen: (\n///       small:     1220px 1599px,\n///       medium:    1600px 1999px,\n///       large:     2000px\n///     )\n///   );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n  $min: 1000000;\n  $max: 0;\n  @each $key, $value in $devices {\n    @while type-of($value) == map {\n      $value: break-select-min-max($value);\n    }\n    @if type-of($value) == list {\n      @each $number in $value {\n        @if type-of($number) == number {\n          $min: min($number, $min);\n          @if $max != null {\n            $max: max($number, $max);\n          }\n        } @else {\n          @error \"Invalid number: #{$number}\";\n        }\n      }\n    } @else if type-of($value) == number {\n      $min: min($value, $min);\n      $max: null;\n    } @else {\n      @error \"Invalid value: #{$value}\";\n    }\n  }\n  @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n  $current: $break-devices;\n  @for $n from 1 through length($device) {\n    @if type-of($current) == map {\n      $current: map-get($current, nth($device, $n));\n    } @else {\n      @error \"Invalid device map: #{$devices}\";\n    }\n  }\n  @if type-of($current) == list or type-of($current) == number {\n    $current: (default: $current);\n  }\n  @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (min-width: $breakpoint) {\n      @content;\n    }\n  } @else if type-of($breakpoint) == list {\n    $min: nth($breakpoint, 1);\n    $max: nth($breakpoint, 2);\n    @if type-of($min) == number and type-of($max) == number {\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid breakpoint: #{$breakpoint}\";\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n  @if type-of($breakpoint) == string {\n    @media screen and (orientation: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (max-aspect-ratio: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    @if nth($breakpoint, 2) != null {\n      $min: nth($breakpoint, 1);\n      $max: nth($breakpoint, 2);\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid device: #{$device}\";\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $min: nth($breakpoint, 1);\n    @media screen and (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $max: nth($breakpoint, 2);\n    @media screen and (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Slate theme, i.e. dark mode\n[data-md-color-scheme=\"slate\"] {\n\n  // Slate's hue in the range [0,360] - change this variable to alter the tone\n  // of the theme, e.g. to make it more redish or greenish. This is a slate-\n  // specific variable, but the same approach may be adapted to custom themes.\n  --md-hue: 232;\n\n  // Default color shades\n  --md-default-fg-color:               hsla(var(--md-hue), 75%, 95%, 1);\n  --md-default-fg-color--light:        hsla(var(--md-hue), 75%, 90%, 0.62);\n  --md-default-fg-color--lighter:      hsla(var(--md-hue), 75%, 90%, 0.32);\n  --md-default-fg-color--lightest:     hsla(var(--md-hue), 75%, 90%, 0.12);\n  --md-default-bg-color:               hsla(var(--md-hue), 15%, 21%, 1);\n  --md-default-bg-color--light:        hsla(var(--md-hue), 15%, 21%, 0.54);\n  --md-default-bg-color--lighter:      hsla(var(--md-hue), 15%, 21%, 0.26);\n  --md-default-bg-color--lightest:     hsla(var(--md-hue), 15%, 21%, 0.07);\n\n  // Code color shades\n  --md-code-fg-color:                  hsla(var(--md-hue), 18%, 86%, 1);\n  --md-code-bg-color:                  hsla(var(--md-hue), 15%, 15%, 1);\n\n  // Code highlighting color shades\n  --md-code-hl-color:                  hsla(#{hex2hsl($clr-blue-a200)}, 0.15);\n  --md-code-hl-number-color:           hsla(6, 74%, 63%, 1);\n  --md-code-hl-special-color:          hsla(340, 83%, 66%, 1);\n  --md-code-hl-function-color:         hsla(291, 57%, 65%, 1);\n  --md-code-hl-constant-color:         hsla(250, 62%, 70%, 1);\n  --md-code-hl-keyword-color:          hsla(219, 66%, 64%, 1);\n  --md-code-hl-string-color:           hsla(150, 58%, 44%, 1);\n\n  // Typeset color shades\n  --md-typeset-a-color:                var(--md-primary-fg-color--light);\n\n  // Typeset `mark` color shades\n  --md-typeset-mark-color:             hsla(#{hex2hsl($clr-blue-a200)}, 0.3);\n\n  // Typeset `kbd` color shades\n  --md-typeset-kbd-color:              hsla(var(--md-hue), 15%, 94%, 0.12);\n  --md-typeset-kbd-accent-color:       hsla(var(--md-hue), 15%, 94%, 0.2);\n  --md-typeset-kbd-border-color:       hsla(var(--md-hue), 15%, 14%, 1);\n\n  // Admonition color shades\n  --md-admonition-bg-color:            hsla(var(--md-hue), 0%, 100%, 0.025);\n\n  // Footer color shades\n  --md-footer-bg-color:                hsla(var(--md-hue), 15%, 12%, 0.87);\n  --md-footer-bg-color--dark:          hsla(var(--md-hue), 15%, 10%, 1);\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/assets/stylesheets/palette.a46bcfb3.min.css.map b/assets/stylesheets/palette.a46bcfb3.min.css.map
deleted file mode 100644
index d18ca929e..000000000
--- a/assets/stylesheets/palette.a46bcfb3.min.css.map
+++ /dev/null
@@ -1 +0,0 @@
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IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $color in (\n  \"red\":         $clr-red-a400,\n  \"pink\":        $clr-pink-a400,\n  \"purple\":      $clr-purple-a200,\n  \"deep-purple\": $clr-deep-purple-a200,\n  \"indigo\":      $clr-indigo-a200,\n  \"blue\":        $clr-blue-a200,\n  \"light-blue\":  $clr-light-blue-a700,\n  \"cyan\":        $clr-cyan-a700,\n  \"teal\":        $clr-teal-a700,\n  \"green\":       $clr-green-a700,\n  \"light-green\": $clr-light-green-a700,\n  \"lime\":        $clr-lime-a700,\n  \"yellow\":      $clr-yellow-a700,\n  \"amber\":       $clr-amber-a700,\n  \"orange\":      $clr-orange-a400,\n  \"deep-orange\": $clr-deep-orange-a200\n) {\n\n  // Color palette\n  [data-md-color-accent=\"#{$name}\"] {\n    --md-accent-fg-color:              hsla(#{hex2hsl($color)}, 1);\n    --md-accent-fg-color--transparent: hsla(#{hex2hsl($color)}, 0.1);\n\n    // Inverted text for lighter shades\n    @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n      --md-accent-bg-color:           hsla(0, 0%, 0%, 0.87);\n      --md-accent-bg-color--light:    hsla(0, 0%, 0%, 0.54);\n    } @else {\n      --md-accent-bg-color:           hsla(0, 0%, 100%, 1);\n      --md-accent-bg-color--light:    hsla(0, 0%, 100%, 0.7);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $colors in (\n  \"red\":         $clr-red-400         $clr-red-300         $clr-red-600,\n  \"pink\":        $clr-pink-500        $clr-pink-400        $clr-pink-700,\n  \"purple\":      $clr-purple-400      $clr-purple-300      $clr-purple-600,\n  \"deep-purple\": $clr-deep-purple-400 $clr-deep-purple-300 $clr-deep-purple-500,\n  \"indigo\":      $clr-indigo-500      $clr-indigo-400      $clr-indigo-700,\n  \"blue\":        $clr-blue-500        $clr-blue-400        $clr-blue-700,\n  \"light-blue\":  $clr-light-blue-500  $clr-light-blue-400  $clr-light-blue-700,\n  \"cyan\":        $clr-cyan-500        $clr-cyan-400        $clr-cyan-700,\n  \"teal\":        $clr-teal-500        $clr-teal-400        $clr-teal-700,\n  \"green\":       $clr-green-500       $clr-green-400       $clr-green-700,\n  \"light-green\": $clr-light-green-500 $clr-light-green-400 $clr-light-green-700,\n  \"lime\":        $clr-lime-500        $clr-lime-400        $clr-lime-700,\n  \"yellow\":      $clr-yellow-500      $clr-yellow-400      $clr-yellow-700,\n  \"amber\":       $clr-amber-500       $clr-amber-400       $clr-amber-700,\n  \"orange\":      $clr-orange-400      $clr-orange-400      $clr-orange-600,\n  \"deep-orange\": $clr-deep-orange-400 $clr-deep-orange-300 $clr-deep-orange-600,\n  \"brown\":       $clr-brown-500       $clr-brown-400       $clr-brown-700,\n  \"grey\":        $clr-grey-600        $clr-grey-500        $clr-grey-700,\n  \"blue-grey\":   $clr-blue-grey-600   $clr-blue-grey-500   $clr-blue-grey-700\n) {\n\n  // Color palette\n  [data-md-color-primary=\"#{$name}\"] {\n    --md-primary-fg-color:             hsla(#{hex2hsl(nth($colors, 1))}, 1);\n    --md-primary-fg-color--light:      hsla(#{hex2hsl(nth($colors, 2))}, 1);\n    --md-primary-fg-color--dark:       hsla(#{hex2hsl(nth($colors, 3))}, 1);\n\n    // Inverted text for lighter shades\n    @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n      --md-primary-bg-color:           hsla(0, 0%, 0%, 0.87);\n      --md-primary-bg-color--light:    hsla(0, 0%, 0%, 0.54);\n    } @else {\n      --md-primary-bg-color:           hsla(0, 0%, 100%, 1);\n      --md-primary-bg-color--light:    hsla(0, 0%, 100%, 0.7);\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: white\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"white\"] {\n  --md-primary-fg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-fg-color--light:        hsla(0, 0%, 100%, 0.7);\n  --md-primary-fg-color--dark:         hsla(0, 0%, 0%, 0.07);\n  --md-primary-bg-color:               hsla(0, 0%, 0%, 0.87);\n  --md-primary-bg-color--light:        hsla(0, 0%, 0%, 0.54);\n\n  // Text color shades\n  --md-text-link-color:                hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n  // Add a border if there are no tabs\n  .md-hero--expand {\n    border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n  }\n\n  // [tablet -]: Set bottom border for hero\n  @include break-to-device(tablet) {\n\n    // Hero teaser\n    .md-hero {\n      border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n    }\n  }\n\n  // [tablet portrait +]: Change color of search input\n  @include break-from-device(tablet landscape) {\n\n    // Search input\n    .md-search__input {\n      background-color: hsla(0, 0%, 0%, 0.07);\n\n      // Icon color\n      + .md-search__icon {\n        color: hsla(0, 0%, 0%, 0.87);\n      }\n\n      // Placeholder color\n      &::placeholder {\n        color: hsla(0, 0%, 0%, 0.54);\n      }\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 0%, 0.32);\n      }\n    }\n  }\n\n  // [screen +]: Set bottom border for tabs\n  @include break-from-device(screen) {\n\n    // Tabs with outline\n    .md-tabs {\n      border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n    }\n  }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: black\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"black\"] {\n  --md-primary-fg-color:               hsla(0, 0%, 0%, 1);\n  --md-primary-fg-color--light:        hsla(0, 0%, 0%, 0.54);\n  --md-primary-fg-color--dark:         hsla(0, 0%, 0%, 1);\n  --md-primary-bg-color:               hsla(0, 0%, 100%, 1);\n  --md-primary-bg-color--light:        hsla(0, 0%, 100%, 0.7);\n\n  // Text color shades\n  --md-text-link-color:                hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n  // Application header (stays always on top)\n  .md-header {\n    background-color: hsla(0, 0%, 0%, 1);\n  }\n\n  // Hero teaser\n  .md-hero {\n    background-color: hsla(0, 0%, 0%, 1);\n  }\n\n  // [tablet portrait -]: Layered navigation\n  @include break-to-device(tablet portrait) {\n\n    // Repository containing source\n    .md-nav__source {\n      background-color: hsla(0, 0%, 0%, 0.87);\n    }\n  }\n\n  // [tablet landscape +]: Header-embedded search\n  @include break-from-device(tablet landscape) {\n\n    // Search input\n    .md-search__input {\n      background-color: hsla(0, 0%, 100%, 0.12);\n\n      // Hovered search field\n      &:hover {\n        background-color: hsla(0, 0%, 100%, 0.3);\n      }\n    }\n  }\n\n  // [tablet -]: Layered navigation\n  @include break-to-device(tablet) {\n\n    // Site title in main navigation\n    html & .md-nav--primary .md-nav__title[for=\"__drawer\"] {\n      background-color: hsla(0, 0%, 0%, 1);\n    }\n  }\n\n  // [screen +]: Set background color for tabs\n  @include break-from-device(screen) {\n\n    // Tabs with outline\n    .md-tabs {\n      background-color: hsla(0, 0%, 0%, 1);\n    }\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n///   $break-devices: (\n///     mobile: (\n///       portrait:  220px  479px,\n///       landscape: 480px  719px\n///     ),\n///     tablet: (\n///       portrait:  720px  959px,\n///       landscape: 960px  1219px\n///     ),\n///     screen: (\n///       small:     1220px 1599px,\n///       medium:    1600px 1999px,\n///       large:     2000px\n///     )\n///   );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n  $min: 1000000;\n  $max: 0;\n  @each $key, $value in $devices {\n    @while type-of($value) == map {\n      $value: break-select-min-max($value);\n    }\n    @if type-of($value) == list {\n      @each $number in $value {\n        @if type-of($number) == number {\n          $min: min($number, $min);\n          @if $max != null {\n            $max: max($number, $max);\n          }\n        } @else {\n          @error \"Invalid number: #{$number}\";\n        }\n      }\n    } @else if type-of($value) == number {\n      $min: min($value, $min);\n      $max: null;\n    } @else {\n      @error \"Invalid value: #{$value}\";\n    }\n  }\n  @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n  $current: $break-devices;\n  @for $n from 1 through length($device) {\n    @if type-of($current) == map {\n      $current: map-get($current, nth($device, $n));\n    } @else {\n      @error \"Invalid device map: #{$devices}\";\n    }\n  }\n  @if type-of($current) == list or type-of($current) == number {\n    $current: (default: $current);\n  }\n  @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (min-width: $breakpoint) {\n      @content;\n    }\n  } @else if type-of($breakpoint) == list {\n    $min: nth($breakpoint, 1);\n    $max: nth($breakpoint, 2);\n    @if type-of($min) == number and type-of($max) == number {\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid breakpoint: #{$breakpoint}\";\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n  @if type-of($breakpoint) == string {\n    @media screen and (orientation: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n  @if type-of($breakpoint) == number {\n    @media screen and (max-aspect-ratio: $breakpoint) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid breakpoint: #{$breakpoint}\";\n  }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    @if nth($breakpoint, 2) != null {\n      $min: nth($breakpoint, 1);\n      $max: nth($breakpoint, 2);\n      @media screen and (min-width: $min) and (max-width: $max) {\n        @content;\n      }\n    } @else {\n      @error \"Invalid device: #{$device}\";\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $min: nth($breakpoint, 1);\n    @media screen and (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n  @if type-of($device) == string {\n    $device: $device,;\n  }\n  @if type-of($device) == list {\n    $breakpoint: break-select-device($device);\n    $max: nth($breakpoint, 2);\n    @media screen and (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @error \"Invalid device: #{$device}\";\n  }\n}\n","////\n/// Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>\n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Slate theme, i.e. dark mode\n[data-md-color-scheme=\"slate\"] {\n\n  // Default color shades\n  --md-default-fg-color:               hsla(0, 0%, 100%, 1);\n  --md-default-fg-color--light:        hsla(0, 0%, 100%, 0.87);\n  --md-default-fg-color--lighter:      hsla(0, 0%, 100%, 0.32);\n  --md-default-fg-color--lightest:     hsla(0, 0%, 100%, 0.12);\n  --md-default-bg-color:               hsla(232, 15%, 21%, 1);\n  --md-default-bg-color--light:        hsla(232, 15%, 21%, 0.54);\n  --md-default-bg-color--lighter:      hsla(232, 15%, 21%, 0.26);\n  --md-default-bg-color--lightest:     hsla(232, 15%, 21%, 0.07);\n\n  // Code color shades\n  --md-code-bg-color:                  hsla(232, 15%, 18%, 1);\n  --md-code-fg-color:                  hsla(60, 30%, 96%, 1);\n\n  // Text color shades\n  --md-text-color:                     var(--md-default-fg-color--light);\n  --md-text-link-color:                var(--md-primary-fg-color);\n\n  // Admonition color shades\n  --md-admonition-bg-color:            hsla(0, 0%, 100%, 0.025);\n  --md-admonition-fg-color:            var(--md-default-fg-color);\n\n  // Footer color shades\n  --md-footer-bg-color:                hsla(232, 15%, 12%, 0.87);\n  --md-footer-bg-color--dark:          hsla(232, 15%, 10%, 1);\n}\n"],"sourceRoot":""}
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diff --git a/deploy/baremetal/index.html b/deploy/baremetal/index.html
index 6950d349b..fa0e34989 100644
--- a/deploy/baremetal/index.html
+++ b/deploy/baremetal/index.html
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-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
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+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
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@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
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     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
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@@ -268,15 +269,11 @@
     
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       Welcome
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-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
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@@ -360,15 +357,11 @@
     
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       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -402,9 +395,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Bare-metal considerations
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Bare-metal considerations" class="md-nav__link md-nav__link--active">
@@ -419,9 +410,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -520,15 +509,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -545,15 +530,11 @@
     
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       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
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     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
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@@ -779,15 +760,11 @@
     
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       Third party addons
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
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@@ -838,15 +815,11 @@
     
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       Examples
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -899,15 +872,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -977,15 +946,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1187,9 +1152,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1687,15 +1650,15 @@ and the Service port:</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/deploy/hardening-guide/index.html b/deploy/hardening-guide/index.html
index f70849095..996c10f5e 100644
--- a/deploy/hardening-guide/index.html
+++ b/deploy/hardening-guide/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
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-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -360,15 +357,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -438,9 +431,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Hardening guide
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Hardening guide" class="md-nav__link md-nav__link--active">
@@ -455,9 +446,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -499,15 +488,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -524,15 +509,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -758,15 +739,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
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-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -817,15 +794,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
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-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -878,15 +851,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -956,15 +925,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1166,9 +1131,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1209,13 +1172,13 @@
                 
                 <h1 id="hardening-guide">Hardening Guide<a class="headerlink" href="#hardening-guide" title="Permanent link"> ¶</a></h1>
 <h2 id="overview">Overview<a class="headerlink" href="#overview" title="Permanent link"> ¶</a></h2>
-<p>There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are 
+<p>There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are
 overlapping in some points:</p>
 <ul>
 <li><a href="https://www.cisecurity.org/benchmark/nginx/">nginx CIS Benchmark</a></li>
 <li><a href="https://cipherlist.eu/">cipherlist.eu</a> (one of many forks of the now dead project cipherli.st)</li>
 </ul>
-<p>This guide describes, what of the different configurations described in those guides is already implemented as default 
+<p>This guide describes, what of the different configurations described in those guides is already implemented as default
 in the nginx implementation of kubernetes ingress, what needs to be configured, what is obsolete due to the fact that
 the nginx is running as container (the CIS benchmark relates to a non-containerized installation) and what is difficult
 or not possible.</p>
@@ -1775,6 +1738,17 @@ lead to have specific clients unable to reach your site or similar consequences.
 </tr>
 </tbody>
 </table>
+<style type="text/css" rel="stylesheet">
+@media only screen and (min-width: 768px) {
+    td:nth-child(1){
+        white-space:normal !important;
+    }
+
+    .md-typeset table:not([class]) td {
+        padding: .2rem .3rem;
+    }
+}
+</style>
                 
               
               
@@ -1841,15 +1815,15 @@ lead to have specific clients unable to reach your site or similar consequences.
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/deploy/index.html b/deploy/index.html
index bc758228e..49cf0565b 100644
--- a/deploy/index.html
+++ b/deploy/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -360,15 +357,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -390,9 +383,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Installation Guide
-        <span class="md-nav__icon md-icon">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Installation Guide" class="md-nav__link md-nav__link--active">
@@ -407,9 +398,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -615,15 +604,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
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-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -640,15 +625,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -874,15 +855,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
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-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -933,15 +910,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -994,15 +967,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1072,15 +1041,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1282,9 +1247,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1670,15 +1633,15 @@ To install the chart with the release name <code>ingress-nginx</code>:</p>
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/deploy/rbac/index.html b/deploy/rbac/index.html
index 00d627660..4462eeecb 100644
--- a/deploy/rbac/index.html
+++ b/deploy/rbac/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -360,15 +357,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -414,9 +407,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Role Based Access Control (RBAC)
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Role Based Access Control (RBAC)" class="md-nav__link md-nav__link--active">
@@ -431,9 +422,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -533,15 +522,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -558,15 +543,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -792,15 +773,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -851,15 +828,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -912,15 +885,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -990,15 +959,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1200,9 +1165,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1405,15 +1368,15 @@ container arguments, and POD_NAMESPACE should be in the nginx-ingress namespace.
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/deploy/upgrade/index.html b/deploy/upgrade/index.html
index c29eef2ae..5a3f32ac3 100644
--- a/deploy/upgrade/index.html
+++ b/deploy/upgrade/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -360,15 +357,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -426,9 +419,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Upgrade
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Upgrade" class="md-nav__link md-nav__link--active">
@@ -443,9 +434,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -512,15 +501,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -537,15 +522,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -771,15 +752,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -830,15 +807,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -891,15 +864,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -969,15 +938,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1179,9 +1144,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1341,15 +1304,15 @@ you should be able to upgrade using</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/development/index.html b/development/index.html
index 06da6bb99..a851713a1 100644
--- a/development/index.html
+++ b/development/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -270,15 +271,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -348,9 +345,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Development
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Development" class="md-nav__link md-nav__link--active">
@@ -365,9 +360,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -436,15 +429,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -526,15 +515,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -551,15 +536,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -785,15 +766,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -844,15 +821,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -905,15 +878,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -983,15 +952,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1193,9 +1158,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1392,15 +1355,15 @@
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/e2e-tests/index.html b/e2e-tests/index.html
index ddf5af406..04cdf77c0 100644
--- a/e2e-tests/index.html
+++ b/e2e-tests/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -266,15 +267,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -356,15 +353,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
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-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -446,15 +439,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -471,15 +460,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -705,15 +690,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -764,15 +745,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -825,15 +802,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -903,15 +876,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1113,9 +1082,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -2291,15 +2258,15 @@
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/enhancements/20190724-only-dynamic-ssl/index.html b/enhancements/20190724-only-dynamic-ssl/index.html
index 60c64ea95..d16ca377e 100644
--- a/enhancements/20190724-only-dynamic-ssl/index.html
+++ b/enhancements/20190724-only-dynamic-ssl/index.html
@@ -13,22 +13,22 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
-        <title>Remove static SSL configuration mode</title>
+        <title>Remove static SSL configuration mode - NGINX Ingress Controller</title>
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -266,15 +267,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -356,15 +353,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -446,15 +439,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -471,15 +460,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -705,15 +690,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -764,15 +745,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -825,15 +802,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -903,15 +876,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1113,9 +1082,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1288,15 +1255,15 @@
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/enhancements/20190815-zone-aware-routing/index.html b/enhancements/20190815-zone-aware-routing/index.html
index d9e50d87b..a96c567bc 100644
--- a/enhancements/20190815-zone-aware-routing/index.html
+++ b/enhancements/20190815-zone-aware-routing/index.html
@@ -13,22 +13,22 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
-        <title>Availability zone aware routing</title>
+        <title>Availability zone aware routing - NGINX Ingress Controller</title>
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -266,15 +267,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -356,15 +353,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -446,15 +439,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -471,15 +460,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -705,15 +690,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -764,15 +745,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -825,15 +802,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -903,15 +876,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1113,9 +1082,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1305,15 +1272,15 @@ see no endpoints for the backend and therefore we will use general balancer.</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/enhancements/YYYYMMDD-kep-template/index.html b/enhancements/YYYYMMDD-kep-template/index.html
index c5d07e81c..631a11ba3 100644
--- a/enhancements/YYYYMMDD-kep-template/index.html
+++ b/enhancements/YYYYMMDD-kep-template/index.html
@@ -13,22 +13,22 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
-        <title>KEP Template</title>
+        <title>KEP Template - NGINX Ingress Controller</title>
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -266,15 +267,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -356,15 +353,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -446,15 +439,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -471,15 +460,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -705,15 +690,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -764,15 +745,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -825,15 +802,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -903,15 +876,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1113,9 +1082,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1445,15 +1412,15 @@ Major milestones might include</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/enhancements/index.html b/enhancements/index.html
index 16901b6ab..b55acc631 100644
--- a/enhancements/index.html
+++ b/enhancements/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -266,15 +267,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -356,15 +353,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -446,15 +439,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -471,15 +460,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -705,15 +690,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -764,15 +745,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -825,15 +802,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -903,15 +876,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1113,9 +1082,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1217,15 +1184,15 @@ As such, we want to build a well curated set of clear proposals in a common form
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/PREREQUISITES/index.html b/examples/PREREQUISITES/index.html
index 31615d9c5..77ee487ba 100644
--- a/examples/PREREQUISITES/index.html
+++ b/examples/PREREQUISITES/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -810,9 +787,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Prerequisites
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Prerequisites" class="md-nav__link md-nav__link--active">
@@ -827,9 +802,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -885,15 +858,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -963,15 +932,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1173,9 +1138,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1391,15 +1354,15 @@ which you can deploy as follows</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/affinity/cookie/index.html b/examples/affinity/cookie/index.html
index eb62ca2f3..3421aaf21 100644
--- a/examples/affinity/cookie/index.html
+++ b/examples/affinity/cookie/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -822,9 +799,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Sticky Sessions
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Sticky Sessions" class="md-nav__link md-nav__link--active">
@@ -839,9 +814,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -878,15 +851,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -956,15 +925,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1166,9 +1131,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1380,15 +1343,15 @@ This means that you can face the situation that you've configured session affini
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/auth/basic/index.html b/examples/auth/basic/index.html
index 9d4e61467..35ed9d860 100644
--- a/examples/auth/basic/index.html
+++ b/examples/auth/basic/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -831,15 +808,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -918,15 +891,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1330,15 +1299,15 @@ BODY:
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/auth/client-certs/index.html b/examples/auth/client-certs/index.html
index 126f6d759..a3280ffc8 100644
--- a/examples/auth/client-certs/index.html
+++ b/examples/auth/client-certs/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -831,15 +808,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -873,9 +846,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Client Certificate Authentication
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Client Certificate Authentication" class="md-nav__link md-nav__link--active">
@@ -890,9 +861,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -958,15 +927,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1168,9 +1133,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1327,15 +1290,15 @@ kubectl create secret generic tls-secret --from-file<span class="o">=</span>tls.
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/auth/external-auth/index.html b/examples/auth/external-auth/index.html
index 84c211fb8..85450bcb9 100644
--- a/examples/auth/external-auth/index.html
+++ b/examples/auth/external-auth/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -831,15 +808,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -885,9 +858,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         External Basic Authentication
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="External Basic Authentication" class="md-nav__link md-nav__link--active">
@@ -902,9 +873,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -951,15 +920,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1161,9 +1126,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1403,15 +1366,15 @@ BODY:
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/auth/oauth-external-auth/index.html b/examples/auth/oauth-external-auth/index.html
index f416bdf73..911af0e1b 100644
--- a/examples/auth/oauth-external-auth/index.html
+++ b/examples/auth/oauth-external-auth/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
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@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -909,15 +882,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1230,15 +1199,15 @@ metadata:
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/customization/custom-errors/index.html b/examples/customization/custom-errors/index.html
index ca5fbe7c8..1ec18e730 100644
--- a/examples/customization/custom-errors/index.html
+++ b/examples/customization/custom-errors/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -909,15 +882,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -963,9 +932,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Custom Errors
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Custom Errors" class="md-nav__link md-nav__link--active">
@@ -980,9 +947,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1175,9 +1140,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1360,15 +1323,15 @@ responses are still in the correct format when a backend returns 503 (eg. if you
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/customization/custom-headers/index.html b/examples/customization/custom-headers/index.html
index afc372871..fbe80fda3 100644
--- a/examples/customization/custom-headers/index.html
+++ b/examples/customization/custom-headers/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -909,15 +882,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -975,9 +944,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Custom Headers
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Custom Headers" class="md-nav__link md-nav__link--active">
@@ -992,9 +959,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1161,9 +1126,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1277,15 +1240,15 @@ server.</p>
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/customization/external-auth-headers/index.html b/examples/customization/external-auth-headers/index.html
index aae9abed3..0b6ca187d 100644
--- a/examples/customization/external-auth-headers/index.html
+++ b/examples/customization/external-auth-headers/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
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+        <span class="md-nav__icon md-icon"></span>
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+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
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-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
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diff --git a/examples/docker-registry/index.html b/examples/docker-registry/index.html
index 5e3644dc5..30a3adce4 100644
--- a/examples/docker-registry/index.html
+++ b/examples/docker-registry/index.html
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-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
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+        <meta name="theme-color" content="#009485">
       
     
     
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+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
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@@ -59,6 +59,7 @@
     
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+    
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+        <span class="md-nav__icon md-icon"></span>
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+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
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@@ -1350,15 +1313,15 @@
       
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-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
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+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
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-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/grpc/index.html b/examples/grpc/index.html
index 216744ff3..49d8d72a6 100644
--- a/examples/grpc/index.html
+++ b/examples/grpc/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1038,9 +1007,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         gRPC
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="gRPC" class="md-nav__link md-nav__link--active">
@@ -1055,9 +1022,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1207,9 +1172,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1456,15 +1419,15 @@ to help make it easier for your users to consume your API.</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/index.html b/examples/index.html
index 6bf99e5d7..dbd37b620 100644
--- a/examples/index.html
+++ b/examples/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1326,15 +1295,15 @@ Please review the <a href="PREREQUISITES/">prerequisites</a> before trying them.
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/multi-tls/index.html b/examples/multi-tls/index.html
index 0fe648d79..344665510 100644
--- a/examples/multi-tls/index.html
+++ b/examples/multi-tls/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1299,15 +1268,15 @@
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/psp/index.html b/examples/psp/index.html
index e996a5049..47fdfb9db 100644
--- a/examples/psp/index.html
+++ b/examples/psp/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1207,15 +1176,15 @@ you will need to provide the Deployment with the permissions to create pods.</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/rewrite/index.html b/examples/rewrite/index.html
index 9ce145651..72daf7ddc 100644
--- a/examples/rewrite/index.html
+++ b/examples/rewrite/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1062,9 +1031,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Rewrite
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Rewrite" class="md-nav__link md-nav__link--active">
@@ -1079,9 +1046,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1193,9 +1158,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1440,15 +1403,15 @@ Connection: keep-alive
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/static-ip/index.html b/examples/static-ip/index.html
index df2cf5b6a..c83854142 100644
--- a/examples/static-ip/index.html
+++ b/examples/static-ip/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1074,9 +1043,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Static IPs
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Static IPs" class="md-nav__link md-nav__link--active">
@@ -1091,9 +1058,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1187,9 +1152,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1410,15 +1373,15 @@ Service with <code>spec.loadBalancerIP</code> set to <code>104.154.109.191</code
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/examples/tls-termination/index.html b/examples/tls-termination/index.html
index bc56dc2c1..8d503cb57 100644
--- a/examples/tls-termination/index.html
+++ b/examples/tls-termination/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -448,15 +441,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -473,15 +462,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -707,15 +692,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -768,15 +749,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -829,15 +806,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -907,15 +880,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1086,9 +1055,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         TLS termination
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="TLS termination" class="md-nav__link md-nav__link--active">
@@ -1103,9 +1070,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1173,9 +1138,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1370,15 +1333,15 @@ TLS cert, and forward un-encrypted HTTP traffic to the test HTTP service.</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/extra.css b/extra.css
index 713e0f65a..469503c74 100644
--- a/extra.css
+++ b/extra.css
@@ -1,10 +1,9 @@
 .md-typeset__table {
-    min-width: 100%;
+	min-width: 100%;
 }
 
-@media only screen and (min-width: 768px)
-{
-	td:nth-child(1){
+@media only screen and (min-width: 768px) {
+	td:nth-child(1) {
 		white-space: nowrap;
 	}
 }
diff --git a/how-it-works/index.html b/how-it-works/index.html
index abdebc085..ac79c1550 100644
--- a/how-it-works/index.html
+++ b/how-it-works/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -270,15 +271,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -312,9 +309,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         How it works
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="How it works" class="md-nav__link md-nav__link--active">
@@ -329,9 +324,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -540,15 +529,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -565,15 +550,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -799,15 +780,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -858,15 +835,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -919,15 +892,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -997,15 +966,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1207,9 +1172,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1406,15 +1369,15 @@ This webhook appends the incoming ingress objects to the list of ingresses, gene
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/index.html b/index.html
index e438153c8..ba3f6ffc6 100644
--- a/index.html
+++ b/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -270,15 +271,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -300,9 +297,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Welcome
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="." title="Welcome" class="md-nav__link md-nav__link--active">
@@ -317,9 +312,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -402,15 +395,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -492,15 +481,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -517,15 +502,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -751,15 +732,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -810,15 +787,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -871,15 +844,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -949,15 +918,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1159,9 +1124,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1251,15 +1214,15 @@
       
     </div>
     
-      <script src="assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: ".",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/kubectl-plugin/index.html b/kubectl-plugin/index.html
index ff72cb732..bb99d90e1 100644
--- a/kubectl-plugin/index.html
+++ b/kubectl-plugin/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -270,15 +271,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -336,9 +333,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         kubectl plugin
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="kubectl plugin" class="md-nav__link md-nav__link--active">
@@ -353,9 +348,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -492,15 +485,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -582,15 +571,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -607,15 +592,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -841,15 +822,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -900,15 +877,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -961,15 +934,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1039,15 +1008,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1249,9 +1214,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1725,15 +1688,15 @@ Do not move it without providing redirects.
       
     </div>
     
-      <script src="../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/search/search_index.json b/search/search_index.json
index d0e0de636..69e85f32e 100644
--- a/search/search_index.json
+++ b/search/search_index.json
@@ -1 +1 @@
-{"config":{"lang":["en"],"min_search_length":3,"prebuild_index":false,"separator":"[\\s\\-]+"},"docs":[{"location":"","text":"Welcome \u00b6 This is the documentation for the NGINX Ingress Controller. It is built around the Kubernetes Ingress resource , using a ConfigMap to store the NGINX configuration. Learn more about using Ingress on k8s.io . Getting Started \u00b6 See Deployment for a whirlwind tour that will get you started.","title":"Welcome"},{"location":"#welcome","text":"This is the documentation for the NGINX Ingress Controller. It is built around the Kubernetes Ingress resource , using a ConfigMap to store the NGINX configuration. Learn more about using Ingress on k8s.io .","title":"Welcome"},{"location":"#getting-started","text":"See Deployment for a whirlwind tour that will get you started.","title":"Getting Started"},{"location":"development/","text":"Developing for NGINX Ingress Controller \u00b6 This document explains how to get started with developing for NGINX Ingress controller. Prerequisites \u00b6 Install Go 1.14 or later. Note The project uses Go Modules Install Docker Important The majority of make tasks run as docker containers Quick Start \u00b6 Fork the repository Clone the repository to any location in your work station Add a GO111MODULE environment variable with export GO111MODULE=on Run go mod download to install dependencies Local build \u00b6 Start a local Kubernetes cluster using kind , build and deploy the ingress controller make dev-env Testing \u00b6 Run go unit tests make test Run unit-tests for lua code make lua-test Lua tests are located in the directory rootfs/etc/nginx/lua/test Important Test files must follow the naming convention <mytest>_test.lua or it will be ignored Run e2e test suite make kind-e2e-test To limit the scope of the tests to execute, we can use the environment variable FOCUS FOCUS=\"no-auth-locations\" make kind-e2e-test Note The variable FOCUS defines Ginkgo Focused Specs Valid values are defined in the describe definition of the e2e tests like Default Backend The complete list of tests can be found here Custom docker image \u00b6 In some cases, it can be useful to build a docker image and publish such an image to a private or custom registry location. This can be done setting two environment variables, REGISTRY and TAG export TAG=\"dev\" export REGISTRY=\"$USER\" make build image and then publish such version with docker push $REGISTRY/controller:$TAG","title":"Development"},{"location":"development/#developing-for-nginx-ingress-controller","text":"This document explains how to get started with developing for NGINX Ingress controller.","title":"Developing for NGINX Ingress Controller"},{"location":"development/#prerequisites","text":"Install Go 1.14 or later. Note The project uses Go Modules Install Docker Important The majority of make tasks run as docker containers","title":"Prerequisites"},{"location":"development/#quick-start","text":"Fork the repository Clone the repository to any location in your work station Add a GO111MODULE environment variable with export GO111MODULE=on Run go mod download to install dependencies","title":"Quick Start"},{"location":"development/#local-build","text":"Start a local Kubernetes cluster using kind , build and deploy the ingress controller make dev-env","title":"Local build"},{"location":"development/#testing","text":"Run go unit tests make test Run unit-tests for lua code make lua-test Lua tests are located in the directory rootfs/etc/nginx/lua/test Important Test files must follow the naming convention <mytest>_test.lua or it will be ignored Run e2e test suite make kind-e2e-test To limit the scope of the tests to execute, we can use the environment variable FOCUS FOCUS=\"no-auth-locations\" make kind-e2e-test Note The variable FOCUS defines Ginkgo Focused Specs Valid values are defined in the describe definition of the e2e tests like Default Backend The complete list of tests can be found here","title":"Testing"},{"location":"development/#custom-docker-image","text":"In some cases, it can be useful to build a docker image and publish such an image to a private or custom registry location. This can be done setting two environment variables, REGISTRY and TAG export TAG=\"dev\" export REGISTRY=\"$USER\" make build image and then publish such version with docker push $REGISTRY/controller:$TAG","title":"Custom docker image"},{"location":"e2e-tests/","text":"e2e test suite for NGINX Ingress Controller \u00b6 [Default Backend] change default settings \u00b6 should apply the annotation to the default backend [Default Backend] \u00b6 should return 404 sending requests when only a default backend is running enables access logging for default backend disables access logging for default backend [Default Backend] custom service \u00b6 uses custom default backend that returns 200 as status code [Default Backend] SSL \u00b6 should return a self generated SSL certificate [TCP] tcp-services \u00b6 should expose a TCP service should expose an ExternalName TCP service auth-* \u00b6 should return status code 200 when no authentication is configured should return status code 503 when authentication is configured with an invalid secret should return status code 401 when authentication is configured but Authorization header is not configured should return status code 401 when authentication is configured and Authorization header is sent with invalid credentials should return status code 200 when authentication is configured and Authorization header is sent should return status code 200 when authentication is configured with a map and Authorization header is sent should return status code 401 when authentication is configured with invalid content and Authorization header is sent proxy_set_header My-Custom-Header 42; proxy_set_header My-Custom-Header 42; proxy_set_header 'My-Custom-Header' '42'; retains cookie set by external authentication server should return status code 200 when signed in should redirect to signin url when not signed in keeps processing new ingresses even if one of the existing ingresses is misconfigured should return status code 200 when signed in after auth backend is deleted should deny login for different location on same server should deny login for different servers should redirect to signin url when not signed in affinitymode \u00b6 Balanced affinity mode should balance Check persistent affinity mode proxy-* \u00b6 should set proxy_redirect to off should set proxy_redirect to default should set proxy_redirect to hello.com goodbye.com should set proxy client-max-body-size to 8m should not set proxy client-max-body-size to incorrect value should set valid proxy timeouts should not set invalid proxy timeouts should turn on proxy-buffering should turn off proxy-request-buffering should build proxy next upstream should setup proxy cookies should change the default proxy HTTP version affinity session-cookie-name \u00b6 should set sticky cookie SERVERID should change cookie name on ingress definition change should set the path to /something on the generated cookie does not set the path to / on the generated cookie if there's more than one rule referring to the same backend should set cookie with expires should work with use-regex annotation and session-cookie-path should warn user when use-regex is true and session-cookie-path is not set should not set affinity across all server locations when using separate ingresses should set sticky cookie without host mirror-* \u00b6 should set mirror-target to http://localhost/mirror should set mirror-target to https://test.env.com/$request_uri should disable mirror-request-body canary-* \u00b6 should response with a 200 status from the mainline upstream when requests are made to the mainline ingress should return 404 status for requests to the canary if no matching ingress is found should return the correct status codes when endpoints are unavailable should route requests to the correct upstream if mainline ingress is created before the canary ingress should route requests to the correct upstream if mainline ingress is created after the canary ingress should route requests to the correct upstream if the mainline ingress is modified should route requests to the correct upstream if the canary ingress is modified should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should routes to mainline upstream when the given Regex causes error should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should not use canary as a catch-all server should not use canary with domain as a server does not crash when canary ingress has multiple paths to the same non-matching backend limit-rate \u00b6 Check limit-rate annotation force-ssl-redirect \u00b6 should redirect to https http2-push-preload \u00b6 enable the http2-push-preload directive proxy-ssl-* \u00b6 should set valid proxy-ssl-secret should set valid proxy-ssl-secret, proxy-ssl-verify to on, and proxy-ssl-verify-depth to 2 should set valid proxy-ssl-secret, proxy-ssl-ciphers to HIGH:!AES should set valid proxy-ssl-secret, proxy-ssl-protocols proxy-ssl-location-only flag should change the nginx config server part modsecurity owasp \u00b6 should enable modsecurity should enable modsecurity with transaction ID and OWASP rules should disable modsecurity should enable modsecurity with snippet should enable modsecurity without using 'modsecurity on;' should disable modsecurity using 'modsecurity off;' should enable modsecurity with snippet and block requests should enable modsecurity globally and with modsecurity-snippet block requests backend-protocol - GRPC \u00b6 should use grpc_pass in the configuration file should return OK for service with backend protocol GRPC should return OK for service with backend protocol GRPCS cors-* \u00b6 should enable cors should set cors methods to only allow POST, GET should set cors max-age should disable cors allow credentials should allow origin for cors should allow headers for cors influxdb-* \u00b6 should send the request metric to the influxdb server Annotation - limit-connections \u00b6 should limit-connections client-body-buffer-size \u00b6 should set client_body_buffer_size to 1000 should set client_body_buffer_size to 1K should set client_body_buffer_size to 1k should set client_body_buffer_size to 1m should set client_body_buffer_size to 1M should not set client_body_buffer_size to invalid 1b default-backend \u00b6 should use a custom default backend as upstream connection-proxy-header \u00b6 set connection header to keep-alive upstream-vhost \u00b6 set host to upstreamvhost.bar.com custom-http-errors \u00b6 configures Nginx correctly server-snippet \u00b6 rewrite-target use-regex enable-rewrite-log \u00b6 should write rewrite logs should use correct longest path match should use ~* location modifier if regex annotation is present should fail to use longest match for documented warning should allow for custom rewrite parameters app-root \u00b6 should redirect to /foo whitelist-source-range \u00b6 should set valid ip whitelist range enable-access-log enable-rewrite-log \u00b6 set access_log off set rewrite_log on x-forwarded-prefix \u00b6 should set the X-Forwarded-Prefix to the annotation value should not add X-Forwarded-Prefix if the annotation value is empty configuration-snippet \u00b6 in all locations backend-protocol - FastCGI \u00b6 should use fastcgi_pass in the configuration file should add fastcgi_index in the configuration file should add fastcgi_param in the configuration file should return OK for service with backend protocol FastCGI from-to-www-redirect \u00b6 should redirect from www HTTP to HTTP should redirect from www HTTPS to HTTPS permanen-redirect permanen-redirect-code \u00b6 should respond with a standard redirect code should respond with a custom redirect code upstream-hash-by-* \u00b6 should connect to the same pod should connect to the same subset of pods backend-protocol \u00b6 should set backend protocol to https:// and use proxy_pass should set backend protocol to grpc:// and use grpc_pass should set backend protocol to grpcs:// and use grpc_pass should set backend protocol to '' and use fastcgi_pass should set backend protocol to '' and use ajp_pass satisfy \u00b6 should configure satisfy directive correctly should allow multiple auth with satisfy any server-alias \u00b6 should return status code 200 for host 'foo' and 404 for 'bar' should return status code 200 for host 'foo' and 'bar' should return status code 200 for hosts defined in two ingresses, different path with one alias ssl-ciphers \u00b6 should change ssl ciphers auth-tls-* \u00b6 should set valid auth-tls-secret should set valid auth-tls-secret, sslVerify to off, and sslVerifyDepth to 2 should set valid auth-tls-secret, pass certificate to upstream, and error page should validate auth-tls-verify-client [Status] status update \u00b6 should update status field after client-go reconnection Debug CLI \u00b6 should list the backend servers should get information for a specific backend server should produce valid JSON for /dbg general [Memory Leak] Dynamic Certificates \u00b6 should not leak memory from ingress SSL certificates or configuration updates single ingress - multiple hosts \u00b6 should set the correct $service_name NGINX variable [Ingress] [PathType] exact \u00b6 should choose exact location for /exact [Security] request smuggling \u00b6 should not return body content from error_page [SSL] [Flag] default-ssl-certificate \u00b6 uses default ssl certificate for catch-all ingress uses default ssl certificate for host based ingress when configured certificate does not match host access-log \u00b6 use the default configuration use the specified configuration use the specified configuration use the specified configuration use the specified configuration [Lua] lua-shared-dicts \u00b6 configures lua shared dicts server-tokens \u00b6 should not exists Server header in the response should exists Server header in the response when is enabled use-proxy-protocol \u00b6 should respect port passed by the PROXY Protocol should respect proto passed by the PROXY Protocol server port should enable PROXY Protocol for HTTPS [Flag] custom HTTP and HTTPS ports \u00b6 should set X-Forwarded-Port headers accordingly when listening on a non-default HTTP port should set X-Forwarded-Port header to 443 should set the X-Forwarded-Port header to 443 [Security] no-auth-locations \u00b6 should return status code 401 when accessing '/' unauthentication should return status code 200 when accessing '/' authentication should return status code 200 when accessing '/noauth' unauthenticated Dynamic $proxy_host \u00b6 should exist a proxy_host should exist a proxy_host using the upstream-vhost annotation value proxy-connect-timeout \u00b6 should set valid proxy timeouts using configmap values should not set invalid proxy timeouts using configmap values [Security] Pod Security Policies \u00b6 should be running with a Pod Security Policy Geoip2 \u00b6 should only allow requests from specific countries [Security] Pod Security Policies with volumes \u00b6 should be running with a Pod Security Policy enable-multi-accept \u00b6 should be enabled by default should be enabled when set to true should be disabled when set to false log-format-* \u00b6 should disable the log-format-escape-json by default should enable the log-format-escape-json should disable the log-format-escape-json log-format-escape-json enabled log-format-escape-json disabled [Flag] ingress-class \u00b6 should ignore Ingress with class should ignore Ingress with no class should delete Ingress when class is removed check scenarios for IngressClass and ingress.class annotation ssl-ciphers \u00b6 Add ssl ciphers proxy-next-upstream \u00b6 should build proxy next upstream using configmap values [Security] global-auth-url \u00b6 should return status code 401 when request any protected service should return status code 200 when request whitelisted (via no-auth-locations) service and 401 when request protected service should return status code 200 when request whitelisted (via ingress annotation) service and 401 when request protected service should still return status code 200 after auth backend is deleted using cache [Security] block-* \u00b6 should block CIDRs defined in the ConfigMap should block User-Agents defined in the ConfigMap should block Referers defined in the ConfigMap plugins \u00b6 should exist a x-hello-world header Configmap - limit-rate \u00b6 Check limit-rate config use-forwarded-headers \u00b6 should trust X-Forwarded headers when setting is true should not trust X-Forwarded headers when setting is false proxy-send-timeout \u00b6 should set valid proxy send timeouts using configmap values should not set invalid proxy send timeouts using configmap values Add no tls redirect locations \u00b6 Check no tls redirect locations config add-headers \u00b6 Add a custom header Add multiple custom headers hash size \u00b6 should set server_names_hash_bucket_size should set server_names_hash_max_size should set proxy-headers-hash-bucket-size should set proxy-headers-hash-max-size should set variables-hash-bucket-size should set variables-hash-max-size should set vmap-hash-bucket-size keep-alive keep-alive-requests \u00b6 should set keepalive_timeout should set keepalive_requests should set keepalive connection to upstream server should set keep alive connection timeout to upstream server should set the request count to upstream server through one keep alive connection [Flag] disable-catch-all \u00b6 should ignore catch all Ingress should delete Ingress updated to catch-all should allow Ingress with both a default backend and rules main-snippet \u00b6 should add value of main-snippet setting to nginx config [SSL] TLS protocols, ciphers and headers) \u00b6 setting cipher suite enforcing TLS v1.0 setting max-age parameter setting includeSubDomains parameter setting preload parameter overriding what's set from the upstream should not use ports during the HTTP to HTTPS redirection should not use ports or X-Forwarded-Host during the HTTP to HTTPS redirection Configmap change \u00b6 should reload after an update in the configuration proxy-read-timeout \u00b6 should set valid proxy read timeouts using configmap values should not set invalid proxy read timeouts using configmap values [Security] modsecurity-snippet \u00b6 should add value of modsecurity-snippet setting to nginx config OCSP \u00b6 should enable OCSP and contain stapling information in the connection reuse-port \u00b6 reuse port should be enabled by default reuse port should be disabled reuse port should be enabled [Shutdown] Graceful shutdown with pending request \u00b6 should let slow requests finish before shutting down [Shutdown] ingress controller \u00b6 should shutdown in less than 60 secons without pending connections should shutdown after waiting 60 seconds for pending connections to be closed should shutdown after waiting 150 seconds for pending connections to be closed [Service] backend status code 503 \u00b6 should return 503 when backend service does not exist should return 503 when all backend service endpoints are unavailable [Service] Type ExternalName \u00b6 works with external name set to incomplete fdqn should return 200 for service type=ExternalName without a port defined should return 200 for service type=ExternalName with a port defined should return status 502 for service type=ExternalName with an invalid host should return 200 for service type=ExternalName using a port name should update the external name after a service update","title":"e2e test suite for [NGINX Ingress Controller](https://github.com/kubernetes/ingress-nginx/tree/master/)"},{"location":"e2e-tests/#e2e-test-suite-for-nginx-ingress-controller","text":"","title":"e2e test suite for NGINX Ingress Controller"},{"location":"e2e-tests/#default-backend-change-default-settings","text":"should apply the annotation to the default backend","title":"[Default Backend] change default settings"},{"location":"e2e-tests/#default-backend","text":"should return 404 sending requests when only a default backend is running enables access logging for default backend disables access logging for default backend","title":"[Default Backend]"},{"location":"e2e-tests/#default-backend-custom-service","text":"uses custom default backend that returns 200 as status code","title":"[Default Backend] custom service"},{"location":"e2e-tests/#default-backend-ssl","text":"should return a self generated SSL certificate","title":"[Default Backend] SSL"},{"location":"e2e-tests/#tcp-tcp-services","text":"should expose a TCP service should expose an ExternalName TCP service","title":"[TCP] tcp-services"},{"location":"e2e-tests/#auth-","text":"should return status code 200 when no authentication is configured should return status code 503 when authentication is configured with an invalid secret should return status code 401 when authentication is configured but Authorization header is not configured should return status code 401 when authentication is configured and Authorization header is sent with invalid credentials should return status code 200 when authentication is configured and Authorization header is sent should return status code 200 when authentication is configured with a map and Authorization header is sent should return status code 401 when authentication is configured with invalid content and Authorization header is sent proxy_set_header My-Custom-Header 42; proxy_set_header My-Custom-Header 42; proxy_set_header 'My-Custom-Header' '42'; retains cookie set by external authentication server should return status code 200 when signed in should redirect to signin url when not signed in keeps processing new ingresses even if one of the existing ingresses is misconfigured should return status code 200 when signed in after auth backend is deleted should deny login for different location on same server should deny login for different servers should redirect to signin url when not signed in","title":"auth-*"},{"location":"e2e-tests/#affinitymode","text":"Balanced affinity mode should balance Check persistent affinity mode","title":"affinitymode"},{"location":"e2e-tests/#proxy-","text":"should set proxy_redirect to off should set proxy_redirect to default should set proxy_redirect to hello.com goodbye.com should set proxy client-max-body-size to 8m should not set proxy client-max-body-size to incorrect value should set valid proxy timeouts should not set invalid proxy timeouts should turn on proxy-buffering should turn off proxy-request-buffering should build proxy next upstream should setup proxy cookies should change the default proxy HTTP version","title":"proxy-*"},{"location":"e2e-tests/#affinity-session-cookie-name","text":"should set sticky cookie SERVERID should change cookie name on ingress definition change should set the path to /something on the generated cookie does not set the path to / on the generated cookie if there's more than one rule referring to the same backend should set cookie with expires should work with use-regex annotation and session-cookie-path should warn user when use-regex is true and session-cookie-path is not set should not set affinity across all server locations when using separate ingresses should set sticky cookie without host","title":"affinity session-cookie-name"},{"location":"e2e-tests/#mirror-","text":"should set mirror-target to http://localhost/mirror should set mirror-target to https://test.env.com/$request_uri should disable mirror-request-body","title":"mirror-*"},{"location":"e2e-tests/#canary-","text":"should response with a 200 status from the mainline upstream when requests are made to the mainline ingress should return 404 status for requests to the canary if no matching ingress is found should return the correct status codes when endpoints are unavailable should route requests to the correct upstream if mainline ingress is created before the canary ingress should route requests to the correct upstream if mainline ingress is created after the canary ingress should route requests to the correct upstream if the mainline ingress is modified should route requests to the correct upstream if the canary ingress is modified should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should routes to mainline upstream when the given Regex causes error should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should not use canary as a catch-all server should not use canary with domain as a server does not crash when canary ingress has multiple paths to the same non-matching backend","title":"canary-*"},{"location":"e2e-tests/#limit-rate","text":"Check limit-rate annotation","title":"limit-rate"},{"location":"e2e-tests/#force-ssl-redirect","text":"should redirect to https","title":"force-ssl-redirect"},{"location":"e2e-tests/#http2-push-preload","text":"enable the http2-push-preload directive","title":"http2-push-preload"},{"location":"e2e-tests/#proxy-ssl-","text":"should set valid proxy-ssl-secret should set valid proxy-ssl-secret, proxy-ssl-verify to on, and proxy-ssl-verify-depth to 2 should set valid proxy-ssl-secret, proxy-ssl-ciphers to HIGH:!AES should set valid proxy-ssl-secret, proxy-ssl-protocols proxy-ssl-location-only flag should change the nginx config server part","title":"proxy-ssl-*"},{"location":"e2e-tests/#modsecurity-owasp","text":"should enable modsecurity should enable modsecurity with transaction ID and OWASP rules should disable modsecurity should enable modsecurity with snippet should enable modsecurity without using 'modsecurity on;' should disable modsecurity using 'modsecurity off;' should enable modsecurity with snippet and block requests should enable modsecurity globally and with modsecurity-snippet block requests","title":"modsecurity owasp"},{"location":"e2e-tests/#backend-protocol-grpc","text":"should use grpc_pass in the configuration file should return OK for service with backend protocol GRPC should return OK for service with backend protocol GRPCS","title":"backend-protocol - GRPC"},{"location":"e2e-tests/#cors-","text":"should enable cors should set cors methods to only allow POST, GET should set cors max-age should disable cors allow credentials should allow origin for cors should allow headers for cors","title":"cors-*"},{"location":"e2e-tests/#influxdb-","text":"should send the request metric to the influxdb server","title":"influxdb-*"},{"location":"e2e-tests/#annotation-limit-connections","text":"should limit-connections","title":"Annotation - limit-connections"},{"location":"e2e-tests/#client-body-buffer-size","text":"should set client_body_buffer_size to 1000 should set client_body_buffer_size to 1K should set client_body_buffer_size to 1k should set client_body_buffer_size to 1m should set client_body_buffer_size to 1M should not set client_body_buffer_size to invalid 1b","title":"client-body-buffer-size"},{"location":"e2e-tests/#default-backend_1","text":"should use a custom default backend as upstream","title":"default-backend"},{"location":"e2e-tests/#connection-proxy-header","text":"set connection header to keep-alive","title":"connection-proxy-header"},{"location":"e2e-tests/#upstream-vhost","text":"set host to upstreamvhost.bar.com","title":"upstream-vhost"},{"location":"e2e-tests/#custom-http-errors","text":"configures Nginx correctly","title":"custom-http-errors"},{"location":"e2e-tests/#server-snippet","text":"","title":"server-snippet"},{"location":"e2e-tests/#rewrite-target-use-regex-enable-rewrite-log","text":"should write rewrite logs should use correct longest path match should use ~* location modifier if regex annotation is present should fail to use longest match for documented warning should allow for custom rewrite parameters","title":"rewrite-target use-regex enable-rewrite-log"},{"location":"e2e-tests/#app-root","text":"should redirect to /foo","title":"app-root"},{"location":"e2e-tests/#whitelist-source-range","text":"should set valid ip whitelist range","title":"whitelist-source-range"},{"location":"e2e-tests/#enable-access-log-enable-rewrite-log","text":"set access_log off set rewrite_log on","title":"enable-access-log enable-rewrite-log"},{"location":"e2e-tests/#x-forwarded-prefix","text":"should set the X-Forwarded-Prefix to the annotation value should not add X-Forwarded-Prefix if the annotation value is empty","title":"x-forwarded-prefix"},{"location":"e2e-tests/#configuration-snippet","text":"in all locations","title":"configuration-snippet"},{"location":"e2e-tests/#backend-protocol-fastcgi","text":"should use fastcgi_pass in the configuration file should add fastcgi_index in the configuration file should add fastcgi_param in the configuration file should return OK for service with backend protocol FastCGI","title":"backend-protocol - FastCGI"},{"location":"e2e-tests/#from-to-www-redirect","text":"should redirect from www HTTP to HTTP should redirect from www HTTPS to HTTPS","title":"from-to-www-redirect"},{"location":"e2e-tests/#permanen-redirect-permanen-redirect-code","text":"should respond with a standard redirect code should respond with a custom redirect code","title":"permanen-redirect permanen-redirect-code"},{"location":"e2e-tests/#upstream-hash-by-","text":"should connect to the same pod should connect to the same subset of pods","title":"upstream-hash-by-*"},{"location":"e2e-tests/#backend-protocol","text":"should set backend protocol to https:// and use proxy_pass should set backend protocol to grpc:// and use grpc_pass should set backend protocol to grpcs:// and use grpc_pass should set backend protocol to '' and use fastcgi_pass should set backend protocol to '' and use ajp_pass","title":"backend-protocol"},{"location":"e2e-tests/#satisfy","text":"should configure satisfy directive correctly should allow multiple auth with satisfy any","title":"satisfy"},{"location":"e2e-tests/#server-alias","text":"should return status code 200 for host 'foo' and 404 for 'bar' should return status code 200 for host 'foo' and 'bar' should return status code 200 for hosts defined in two ingresses, different path with one alias","title":"server-alias"},{"location":"e2e-tests/#ssl-ciphers","text":"should change ssl ciphers","title":"ssl-ciphers"},{"location":"e2e-tests/#auth-tls-","text":"should set valid auth-tls-secret should set valid auth-tls-secret, sslVerify to off, and sslVerifyDepth to 2 should set valid auth-tls-secret, pass certificate to upstream, and error page should validate auth-tls-verify-client","title":"auth-tls-*"},{"location":"e2e-tests/#status-status-update","text":"should update status field after client-go reconnection","title":"[Status] status update"},{"location":"e2e-tests/#debug-cli","text":"should list the backend servers should get information for a specific backend server should produce valid JSON for /dbg general","title":"Debug CLI"},{"location":"e2e-tests/#memory-leak-dynamic-certificates","text":"should not leak memory from ingress SSL certificates or configuration updates","title":"[Memory Leak] Dynamic Certificates"},{"location":"e2e-tests/#single-ingress-multiple-hosts","text":"should set the correct $service_name NGINX variable","title":"single ingress - multiple hosts"},{"location":"e2e-tests/#ingress-pathtype-exact","text":"should choose exact location for /exact","title":"[Ingress] [PathType] exact"},{"location":"e2e-tests/#security-request-smuggling","text":"should not return body content from error_page","title":"[Security] request smuggling"},{"location":"e2e-tests/#ssl-flag-default-ssl-certificate","text":"uses default ssl certificate for catch-all ingress uses default ssl certificate for host based ingress when configured certificate does not match host","title":"[SSL] [Flag] default-ssl-certificate"},{"location":"e2e-tests/#access-log","text":"use the default configuration use the specified configuration use the specified configuration use the specified configuration use the specified configuration","title":"access-log"},{"location":"e2e-tests/#lua-lua-shared-dicts","text":"configures lua shared dicts","title":"[Lua] lua-shared-dicts"},{"location":"e2e-tests/#server-tokens","text":"should not exists Server header in the response should exists Server header in the response when is enabled","title":"server-tokens"},{"location":"e2e-tests/#use-proxy-protocol","text":"should respect port passed by the PROXY Protocol should respect proto passed by the PROXY Protocol server port should enable PROXY Protocol for HTTPS","title":"use-proxy-protocol"},{"location":"e2e-tests/#flag-custom-http-and-https-ports","text":"should set X-Forwarded-Port headers accordingly when listening on a non-default HTTP port should set X-Forwarded-Port header to 443 should set the X-Forwarded-Port header to 443","title":"[Flag] custom HTTP and HTTPS ports"},{"location":"e2e-tests/#security-no-auth-locations","text":"should return status code 401 when accessing '/' unauthentication should return status code 200 when accessing '/' authentication should return status code 200 when accessing '/noauth' unauthenticated","title":"[Security] no-auth-locations"},{"location":"e2e-tests/#dynamic-proxy_host","text":"should exist a proxy_host should exist a proxy_host using the upstream-vhost annotation value","title":"Dynamic $proxy_host"},{"location":"e2e-tests/#proxy-connect-timeout","text":"should set valid proxy timeouts using configmap values should not set invalid proxy timeouts using configmap values","title":"proxy-connect-timeout"},{"location":"e2e-tests/#security-pod-security-policies","text":"should be running with a Pod Security Policy","title":"[Security] Pod Security Policies"},{"location":"e2e-tests/#geoip2","text":"should only allow requests from specific countries","title":"Geoip2"},{"location":"e2e-tests/#security-pod-security-policies-with-volumes","text":"should be running with a Pod Security Policy","title":"[Security] Pod Security Policies with volumes"},{"location":"e2e-tests/#enable-multi-accept","text":"should be enabled by default should be enabled when set to true should be disabled when set to false","title":"enable-multi-accept"},{"location":"e2e-tests/#log-format-","text":"should disable the log-format-escape-json by default should enable the log-format-escape-json should disable the log-format-escape-json log-format-escape-json enabled log-format-escape-json disabled","title":"log-format-*"},{"location":"e2e-tests/#flag-ingress-class","text":"should ignore Ingress with class should ignore Ingress with no class should delete Ingress when class is removed check scenarios for IngressClass and ingress.class annotation","title":"[Flag] ingress-class"},{"location":"e2e-tests/#ssl-ciphers_1","text":"Add ssl ciphers","title":"ssl-ciphers"},{"location":"e2e-tests/#proxy-next-upstream","text":"should build proxy next upstream using configmap values","title":"proxy-next-upstream"},{"location":"e2e-tests/#security-global-auth-url","text":"should return status code 401 when request any protected service should return status code 200 when request whitelisted (via no-auth-locations) service and 401 when request protected service should return status code 200 when request whitelisted (via ingress annotation) service and 401 when request protected service should still return status code 200 after auth backend is deleted using cache","title":"[Security] global-auth-url"},{"location":"e2e-tests/#security-block-","text":"should block CIDRs defined in the ConfigMap should block User-Agents defined in the ConfigMap should block Referers defined in the ConfigMap","title":"[Security] block-*"},{"location":"e2e-tests/#plugins","text":"should exist a x-hello-world header","title":"plugins"},{"location":"e2e-tests/#configmap-limit-rate","text":"Check limit-rate config","title":"Configmap - limit-rate"},{"location":"e2e-tests/#use-forwarded-headers","text":"should trust X-Forwarded headers when setting is true should not trust X-Forwarded headers when setting is false","title":"use-forwarded-headers"},{"location":"e2e-tests/#proxy-send-timeout","text":"should set valid proxy send timeouts using configmap values should not set invalid proxy send timeouts using configmap values","title":"proxy-send-timeout"},{"location":"e2e-tests/#add-no-tls-redirect-locations","text":"Check no tls redirect locations config","title":"Add no tls redirect locations"},{"location":"e2e-tests/#add-headers","text":"Add a custom header Add multiple custom headers","title":"add-headers"},{"location":"e2e-tests/#hash-size","text":"should set server_names_hash_bucket_size should set server_names_hash_max_size should set proxy-headers-hash-bucket-size should set proxy-headers-hash-max-size should set variables-hash-bucket-size should set variables-hash-max-size should set vmap-hash-bucket-size","title":"hash size"},{"location":"e2e-tests/#keep-alive-keep-alive-requests","text":"should set keepalive_timeout should set keepalive_requests should set keepalive connection to upstream server should set keep alive connection timeout to upstream server should set the request count to upstream server through one keep alive connection","title":"keep-alive keep-alive-requests"},{"location":"e2e-tests/#flag-disable-catch-all","text":"should ignore catch all Ingress should delete Ingress updated to catch-all should allow Ingress with both a default backend and rules","title":"[Flag] disable-catch-all"},{"location":"e2e-tests/#main-snippet","text":"should add value of main-snippet setting to nginx config","title":"main-snippet"},{"location":"e2e-tests/#ssl-tls-protocols-ciphers-and-headers","text":"setting cipher suite enforcing TLS v1.0 setting max-age parameter setting includeSubDomains parameter setting preload parameter overriding what's set from the upstream should not use ports during the HTTP to HTTPS redirection should not use ports or X-Forwarded-Host during the HTTP to HTTPS redirection","title":"[SSL] TLS protocols, ciphers and headers)"},{"location":"e2e-tests/#configmap-change","text":"should reload after an update in the configuration","title":"Configmap change"},{"location":"e2e-tests/#proxy-read-timeout","text":"should set valid proxy read timeouts using configmap values should not set invalid proxy read timeouts using configmap values","title":"proxy-read-timeout"},{"location":"e2e-tests/#security-modsecurity-snippet","text":"should add value of modsecurity-snippet setting to nginx config","title":"[Security] modsecurity-snippet"},{"location":"e2e-tests/#ocsp","text":"should enable OCSP and contain stapling information in the connection","title":"OCSP"},{"location":"e2e-tests/#reuse-port","text":"reuse port should be enabled by default reuse port should be disabled reuse port should be enabled","title":"reuse-port"},{"location":"e2e-tests/#shutdown-graceful-shutdown-with-pending-request","text":"should let slow requests finish before shutting down","title":"[Shutdown] Graceful shutdown with pending request"},{"location":"e2e-tests/#shutdown-ingress-controller","text":"should shutdown in less than 60 secons without pending connections should shutdown after waiting 60 seconds for pending connections to be closed should shutdown after waiting 150 seconds for pending connections to be closed","title":"[Shutdown] ingress controller"},{"location":"e2e-tests/#service-backend-status-code-503","text":"should return 503 when backend service does not exist should return 503 when all backend service endpoints are unavailable","title":"[Service] backend status code 503"},{"location":"e2e-tests/#service-type-externalname","text":"works with external name set to incomplete fdqn should return 200 for service type=ExternalName without a port defined should return 200 for service type=ExternalName with a port defined should return status 502 for service type=ExternalName with an invalid host should return 200 for service type=ExternalName using a port name should update the external name after a service update","title":"[Service] Type ExternalName"},{"location":"how-it-works/","text":"How it works \u00b6 The objective of this document is to explain how the NGINX Ingress controller works, in particular how the NGINX model is built and why we need one. NGINX configuration \u00b6 The goal of this Ingress controller is the assembly of a configuration file (nginx.conf). The main implication of this requirement is the need to reload NGINX after any change in the configuration file. Though it is important to note that we don't reload Nginx on changes that impact only an upstream configuration (i.e Endpoints change when you deploy your app) . We use lua-nginx-module to achieve this. Check below to learn more about how it's done. NGINX model \u00b6 Usually, a Kubernetes Controller utilizes the synchronization loop pattern to check if the desired state in the controller is updated or a change is required. To this purpose, we need to build a model using different objects from the cluster, in particular (in no special order) Ingresses, Services, Endpoints, Secrets, and Configmaps to generate a point in time configuration file that reflects the state of the cluster. To get this object from the cluster, we use Kubernetes Informers , in particular, FilteredSharedInformer . This informers allows reacting to changes in using callbacks to individual changes when a new object is added, modified or removed. Unfortunately, there is no way to know if a particular change is going to affect the final configuration file. Therefore on every change, we have to rebuild a new model from scratch based on the state of cluster and compare it to the current model. If the new model equals to the current one, then we avoid generating a new NGINX configuration and triggering a reload. Otherwise, we check if the difference is only about Endpoints. If so we then send the new list of Endpoints to a Lua handler running inside Nginx using HTTP POST request and again avoid generating a new NGINX configuration and triggering a reload. If the difference between running and new model is about more than just Endpoints we create a new NGINX configuration based on the new model, replace the current model and trigger a reload. One of the uses of the model is to avoid unnecessary reloads when there's no change in the state and to detect conflicts in definitions. The final representation of the NGINX configuration is generated from a Go template using the new model as input for the variables required by the template. Building the NGINX model \u00b6 Building a model is an expensive operation, for this reason, the use of the synchronization loop is a must. By using a work queue it is possible to not lose changes and remove the use of sync.Mutex to force a single execution of the sync loop and additionally it is possible to create a time window between the start and end of the sync loop that allows us to discard unnecessary updates. It is important to understand that any change in the cluster could generate events that the informer will send to the controller and one of the reasons for the work queue . Operations to build the model: Order Ingress rules by CreationTimestamp field, i.e., old rules first. If the same path for the same host is defined in more than one Ingress, the oldest rule wins. If more than one Ingress contains a TLS section for the same host, the oldest rule wins. If multiple Ingresses define an annotation that affects the configuration of the Server block, the oldest rule wins. Create a list of NGINX Servers (per hostname) Create a list of NGINX Upstreams If multiple Ingresses define different paths for the same host, the ingress controller will merge the definitions. Annotations are applied to all the paths in the Ingress. Multiple Ingresses can define different annotations. These definitions are not shared between Ingresses. When a reload is required \u00b6 The next list describes the scenarios when a reload is required: New Ingress Resource Created. TLS section is added to existing Ingress. Change in Ingress annotations that impacts more than just upstream configuration. For instance load-balance annotation does not require a reload. A path is added/removed from an Ingress. An Ingress, Service, Secret is removed. Some missing referenced object from the Ingress is available, like a Service or Secret. A Secret is updated. Avoiding reloads \u00b6 In some cases, it is possible to avoid reloads, in particular when there is a change in the endpoints, i.e., a pod is started or replaced. It is out of the scope of this Ingress controller to remove reloads completely. This would require an incredible amount of work and at some point makes no sense. This can change only if NGINX changes the way new configurations are read, basically, new changes do not replace worker processes. Avoiding reloads on Endpoints changes \u00b6 On every endpoint change the controller fetches endpoints from all the services it sees and generates corresponding Backend objects. It then sends these objects to a Lua handler running inside Nginx. The Lua code in turn stores those backends in a shared memory zone. Then for every request Lua code running in balancer_by_lua context detects what endpoints it should choose upstream peer from and applies the configured load balancing algorithm to choose the peer. Then Nginx takes care of the rest. This way we avoid reloading Nginx on endpoint changes. Note that this includes annotation changes that affects only upstream configuration in Nginx as well. In a relatively big clusters with frequently deploying apps this feature saves significant number of Nginx reloads which can otherwise affect response latency, load balancing quality (after every reload Nginx resets the state of load balancing) and so on. Avoiding outage from wrong configuration \u00b6 Because the ingress controller works using the synchronization loop pattern , it is applying the configuration for all matching objects. In case some Ingress objects have a broken configuration, for example a syntax error in the nginx.ingress.kubernetes.io/configuration-snippet annotation, the generated configuration becomes invalid, does not reload and hence no more ingresses will be taken into account. To prevent this situation to happen, the nginx ingress controller optionally exposes a validating admission webhook server to ensure the validity of incoming ingress objects. This webhook appends the incoming ingress objects to the list of ingresses, generates the configuration and calls nginx to ensure the configuration has no syntax errors.","title":"How it works"},{"location":"how-it-works/#how-it-works","text":"The objective of this document is to explain how the NGINX Ingress controller works, in particular how the NGINX model is built and why we need one.","title":"How it works"},{"location":"how-it-works/#nginx-configuration","text":"The goal of this Ingress controller is the assembly of a configuration file (nginx.conf). The main implication of this requirement is the need to reload NGINX after any change in the configuration file. Though it is important to note that we don't reload Nginx on changes that impact only an upstream configuration (i.e Endpoints change when you deploy your app) . We use lua-nginx-module to achieve this. Check below to learn more about how it's done.","title":"NGINX configuration"},{"location":"how-it-works/#nginx-model","text":"Usually, a Kubernetes Controller utilizes the synchronization loop pattern to check if the desired state in the controller is updated or a change is required. To this purpose, we need to build a model using different objects from the cluster, in particular (in no special order) Ingresses, Services, Endpoints, Secrets, and Configmaps to generate a point in time configuration file that reflects the state of the cluster. To get this object from the cluster, we use Kubernetes Informers , in particular, FilteredSharedInformer . This informers allows reacting to changes in using callbacks to individual changes when a new object is added, modified or removed. Unfortunately, there is no way to know if a particular change is going to affect the final configuration file. Therefore on every change, we have to rebuild a new model from scratch based on the state of cluster and compare it to the current model. If the new model equals to the current one, then we avoid generating a new NGINX configuration and triggering a reload. Otherwise, we check if the difference is only about Endpoints. If so we then send the new list of Endpoints to a Lua handler running inside Nginx using HTTP POST request and again avoid generating a new NGINX configuration and triggering a reload. If the difference between running and new model is about more than just Endpoints we create a new NGINX configuration based on the new model, replace the current model and trigger a reload. One of the uses of the model is to avoid unnecessary reloads when there's no change in the state and to detect conflicts in definitions. The final representation of the NGINX configuration is generated from a Go template using the new model as input for the variables required by the template.","title":"NGINX model"},{"location":"how-it-works/#building-the-nginx-model","text":"Building a model is an expensive operation, for this reason, the use of the synchronization loop is a must. By using a work queue it is possible to not lose changes and remove the use of sync.Mutex to force a single execution of the sync loop and additionally it is possible to create a time window between the start and end of the sync loop that allows us to discard unnecessary updates. It is important to understand that any change in the cluster could generate events that the informer will send to the controller and one of the reasons for the work queue . Operations to build the model: Order Ingress rules by CreationTimestamp field, i.e., old rules first. If the same path for the same host is defined in more than one Ingress, the oldest rule wins. If more than one Ingress contains a TLS section for the same host, the oldest rule wins. If multiple Ingresses define an annotation that affects the configuration of the Server block, the oldest rule wins. Create a list of NGINX Servers (per hostname) Create a list of NGINX Upstreams If multiple Ingresses define different paths for the same host, the ingress controller will merge the definitions. Annotations are applied to all the paths in the Ingress. Multiple Ingresses can define different annotations. These definitions are not shared between Ingresses.","title":"Building the NGINX model"},{"location":"how-it-works/#when-a-reload-is-required","text":"The next list describes the scenarios when a reload is required: New Ingress Resource Created. TLS section is added to existing Ingress. Change in Ingress annotations that impacts more than just upstream configuration. For instance load-balance annotation does not require a reload. A path is added/removed from an Ingress. An Ingress, Service, Secret is removed. Some missing referenced object from the Ingress is available, like a Service or Secret. A Secret is updated.","title":"When a reload is required"},{"location":"how-it-works/#avoiding-reloads","text":"In some cases, it is possible to avoid reloads, in particular when there is a change in the endpoints, i.e., a pod is started or replaced. It is out of the scope of this Ingress controller to remove reloads completely. This would require an incredible amount of work and at some point makes no sense. This can change only if NGINX changes the way new configurations are read, basically, new changes do not replace worker processes.","title":"Avoiding reloads"},{"location":"how-it-works/#avoiding-reloads-on-endpoints-changes","text":"On every endpoint change the controller fetches endpoints from all the services it sees and generates corresponding Backend objects. It then sends these objects to a Lua handler running inside Nginx. The Lua code in turn stores those backends in a shared memory zone. Then for every request Lua code running in balancer_by_lua context detects what endpoints it should choose upstream peer from and applies the configured load balancing algorithm to choose the peer. Then Nginx takes care of the rest. This way we avoid reloading Nginx on endpoint changes. Note that this includes annotation changes that affects only upstream configuration in Nginx as well. In a relatively big clusters with frequently deploying apps this feature saves significant number of Nginx reloads which can otherwise affect response latency, load balancing quality (after every reload Nginx resets the state of load balancing) and so on.","title":"Avoiding reloads on Endpoints changes"},{"location":"how-it-works/#avoiding-outage-from-wrong-configuration","text":"Because the ingress controller works using the synchronization loop pattern , it is applying the configuration for all matching objects. In case some Ingress objects have a broken configuration, for example a syntax error in the nginx.ingress.kubernetes.io/configuration-snippet annotation, the generated configuration becomes invalid, does not reload and hence no more ingresses will be taken into account. To prevent this situation to happen, the nginx ingress controller optionally exposes a validating admission webhook server to ensure the validity of incoming ingress objects. This webhook appends the incoming ingress objects to the list of ingresses, generates the configuration and calls nginx to ensure the configuration has no syntax errors.","title":"Avoiding outage from wrong configuration"},{"location":"kubectl-plugin/","text":"The ingress-nginx kubectl plugin \u00b6 Installation \u00b6 Install krew , then run kubectl krew install ingress-nginx to install the plugin. Then run kubectl ingress-nginx --help to make sure the plugin is properly installed and to get a list of commands: kubectl ingress-nginx --help A kubectl plugin for inspecting your ingress-nginx deployments Usage: ingress-nginx [command] Available Commands: backends Inspect the dynamic backend information of an ingress-nginx instance certs Output the certificate data stored in an ingress-nginx pod conf Inspect the generated nginx.conf exec Execute a command inside an ingress-nginx pod general Inspect the other dynamic ingress-nginx information help Help about any command info Show information about the ingress-nginx service ingresses Provide a short summary of all of the ingress definitions lint Inspect kubernetes resources for possible issues logs Get the kubernetes logs for an ingress-nginx pod ssh ssh into a running ingress-nginx pod Flags: --as string Username to impersonate for the operation --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups. --cache-dir string Default HTTP cache directory (default \"/Users/alexkursell/.kube/http-cache\") --certificate-authority string Path to a cert file for the certificate authority --client-certificate string Path to a client certificate file for TLS --client-key string Path to a client key file for TLS --cluster string The name of the kubeconfig cluster to use --context string The name of the kubeconfig context to use -h, --help help for ingress-nginx --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure --kubeconfig string Path to the kubeconfig file to use for CLI requests. -n, --namespace string If present, the namespace scope for this CLI request --request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default \"0\") -s, --server string The address and port of the Kubernetes API server --token string Bearer token for authentication to the API server --user string The name of the kubeconfig user to use Use \"ingress-nginx [command] --help\" for more information about a command. Common Flags \u00b6 Every subcommand supports the basic kubectl configuration flags like --namespace , --context , --client-key and so on. Subcommands that act on a particular ingress-nginx pod ( backends , certs , conf , exec , general , logs , ssh ), support the --deployment <deployment> and --pod <pod> flags to select either a pod from a deployment with the given name, or a pod with the given name. The --deployment flag defaults to nginx-ingress-controller . Subcommands that inspect resources ( ingresses , lint ) support the --all-namespaces flag, which causes them to inspect resources in every namespace. Subcommands \u00b6 Note that backends , general , certs , and conf require ingress-nginx version 0.23.0 or higher. backends \u00b6 Run kubectl ingress-nginx backends to get a JSON array of the backends that an ingress-nginx controller currently knows about: $ kubectl ingress-nginx backends -n ingress-nginx [ { \"name\": \"default-apple-service-5678\", \"service\": { \"metadata\": { \"creationTimestamp\": null }, \"spec\": { \"ports\": [ { \"protocol\": \"TCP\", \"port\": 5678, \"targetPort\": 5678 } ], \"selector\": { \"app\": \"apple\" }, \"clusterIP\": \"10.97.230.121\", \"type\": \"ClusterIP\", \"sessionAffinity\": \"None\" }, \"status\": { \"loadBalancer\": {} } }, \"port\": 0, \"sslPassthrough\": false, \"endpoints\": [ { \"address\": \"10.1.3.86\", \"port\": \"5678\" } ], \"sessionAffinityConfig\": { \"name\": \"\", \"cookieSessionAffinity\": { \"name\": \"\" } }, \"upstreamHashByConfig\": { \"upstream-hash-by-subset-size\": 3 }, \"noServer\": false, \"trafficShapingPolicy\": { \"weight\": 0, \"header\": \"\", \"headerValue\": \"\", \"cookie\": \"\" } }, { \"name\": \"default-echo-service-8080\", ... }, { \"name\": \"upstream-default-backend\", ... } ] Add the --list option to show only the backend names. Add the --backend <backend> option to show only the backend with the given name. certs \u00b6 Use kubectl ingress-nginx certs --host <hostname> to dump the SSL cert/key information for a given host. WARNING: This command will dump sensitive private key information. Don't blindly share the output, and certainly don't log it anywhere. $ kubectl ingress-nginx certs -n ingress-nginx --host testaddr.local -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN RSA PRIVATE KEY----- <REDACTED! DO NOT SHARE THIS!> -----END RSA PRIVATE KEY----- conf \u00b6 Use kubectl ingress-nginx conf to dump the generated nginx.conf file. Add the --host <hostname> option to view only the server block for that host: kubectl ingress-nginx conf -n ingress-nginx --host testaddr.local server { server_name testaddr.local ; listen 80; set $proxy_upstream_name \"-\"; set $pass_access_scheme $scheme; set $pass_server_port $server_port; set $best_http_host $http_host; set $pass_port $pass_server_port; location / { set $namespace \"\"; set $ingress_name \"\"; set $service_name \"\"; set $service_port \"0\"; set $location_path \"/\"; ... exec \u00b6 kubectl ingress-nginx exec is exactly the same as kubectl exec , with the same command flags. It will automatically choose an ingress-nginx pod to run the command in. $ kubectl ingress-nginx exec -i -n ingress-nginx -- ls /etc/nginx fastcgi_params geoip lua mime.types modsecurity modules nginx.conf opentracing.json owasp-modsecurity-crs template general \u00b6 kubectl ingress-nginx general dumps miscellaneous controller state as a JSON object. Currently it just shows the number of controller pods known to a particular controller pod. $ kubectl ingress-nginx general -n ingress-nginx { \"controllerPodsCount\": 1 } info \u00b6 Shows the internal and external IP/CNAMES for an ingress-nginx service. $ kubectl ingress-nginx info -n ingress-nginx Service cluster IP address: 10.187.253.31 LoadBalancer IP|CNAME: 35.123.123.123 Use the --service <service> flag if your ingress-nginx LoadBalancer service is not named ingress-nginx . ingresses \u00b6 kubectl ingress-nginx ingresses , alternately kubectl ingress-nginx ing , shows a more detailed view of the ingress definitions in a namespace. Compare: $ kubectl get ingresses --all-namespaces NAMESPACE NAME HOSTS ADDRESS PORTS AGE default example-ingress1 testaddr.local,testaddr2.local localhost 80 5d default test-ingress-2 * localhost 80 5d vs $ kubectl ingress-nginx ingresses --all-namespaces NAMESPACE INGRESS NAME HOST+PATH ADDRESSES TLS SERVICE SERVICE PORT ENDPOINTS default example-ingress1 testaddr.local/etameta localhost NO pear-service 5678 5 default example-ingress1 testaddr2.local/otherpath localhost NO apple-service 5678 1 default example-ingress1 testaddr2.local/otherotherpath localhost NO pear-service 5678 5 default test-ingress-2 * localhost NO echo-service 8080 2 lint \u00b6 kubectl ingress-nginx lint can check a namespace or entire cluster for potential configuration issues. This command is especially useful when upgrading between ingress-nginx versions. $ kubectl ingress-nginx lint --all-namespaces --verbose Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 \u2717 othernamespace/ingress-definition-blah - The rewrite-target annotation value does not reference a capture group Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3174 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --sort-backends Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3655 - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 to show the lints added only for a particular ingress-nginx release, use the --from-version and --to-version flags: $ kubectl ingress-nginx lint --all-namespaces --verbose --from-version 0 .24.0 --to-version 0 .24.0 Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 logs \u00b6 kubectl ingress-nginx logs is almost the same as kubectl logs , with fewer flags. It will automatically choose an ingress-nginx pod to read logs from. $ kubectl ingress-nginx logs -n ingress-nginx ------------------------------------------------------------------------------- NGINX Ingress controller Release: dev Build: git-48dc3a867 Repository: git@github.com:kubernetes/ingress-nginx.git ------------------------------------------------------------------------------- W0405 16:53:46.061589 7 flags.go:214] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false) nginx version: nginx/1.15.9 W0405 16:53:46.070093 7 client_config.go:549] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work. I0405 16:53:46.070499 7 main.go:205] Creating API client for https://10.96.0.1:443 I0405 16:53:46.077784 7 main.go:249] Running in Kubernetes cluster version v1.10 (v1.10.11) - git (clean) commit 637c7e288581ee40ab4ca210618a89a555b6e7e9 - platform linux/amd64 I0405 16:53:46.183359 7 nginx.go:265] Starting NGINX Ingress controller I0405 16:53:46.193913 7 event.go:209] Event(v1.ObjectReference{Kind:\"ConfigMap\", Namespace:\"ingress-nginx\", Name:\"udp-services\", UID:\"82258915-563e-11e9-9c52-025000000001\", APIVersion:\"v1\", ResourceVersion:\"494\", FieldPath:\"\"}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/udp-services ... ssh \u00b6 kubectl ingress-nginx ssh is exactly the same as kubectl ingress-nginx exec -it -- /bin/bash . Use it when you want to quickly be dropped into a shell inside a running ingress-nginx container. $ kubectl ingress-nginx ssh -n ingress-nginx www-data@nginx-ingress-controller-7cbf77c976-wx5pn:/etc/nginx$","title":"kubectl plugin"},{"location":"kubectl-plugin/#the-ingress-nginx-kubectl-plugin","text":"","title":"The ingress-nginx kubectl plugin"},{"location":"kubectl-plugin/#installation","text":"Install krew , then run kubectl krew install ingress-nginx to install the plugin. Then run kubectl ingress-nginx --help to make sure the plugin is properly installed and to get a list of commands: kubectl ingress-nginx --help A kubectl plugin for inspecting your ingress-nginx deployments Usage: ingress-nginx [command] Available Commands: backends Inspect the dynamic backend information of an ingress-nginx instance certs Output the certificate data stored in an ingress-nginx pod conf Inspect the generated nginx.conf exec Execute a command inside an ingress-nginx pod general Inspect the other dynamic ingress-nginx information help Help about any command info Show information about the ingress-nginx service ingresses Provide a short summary of all of the ingress definitions lint Inspect kubernetes resources for possible issues logs Get the kubernetes logs for an ingress-nginx pod ssh ssh into a running ingress-nginx pod Flags: --as string Username to impersonate for the operation --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups. --cache-dir string Default HTTP cache directory (default \"/Users/alexkursell/.kube/http-cache\") --certificate-authority string Path to a cert file for the certificate authority --client-certificate string Path to a client certificate file for TLS --client-key string Path to a client key file for TLS --cluster string The name of the kubeconfig cluster to use --context string The name of the kubeconfig context to use -h, --help help for ingress-nginx --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure --kubeconfig string Path to the kubeconfig file to use for CLI requests. -n, --namespace string If present, the namespace scope for this CLI request --request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default \"0\") -s, --server string The address and port of the Kubernetes API server --token string Bearer token for authentication to the API server --user string The name of the kubeconfig user to use Use \"ingress-nginx [command] --help\" for more information about a command.","title":"Installation"},{"location":"kubectl-plugin/#common-flags","text":"Every subcommand supports the basic kubectl configuration flags like --namespace , --context , --client-key and so on. Subcommands that act on a particular ingress-nginx pod ( backends , certs , conf , exec , general , logs , ssh ), support the --deployment <deployment> and --pod <pod> flags to select either a pod from a deployment with the given name, or a pod with the given name. The --deployment flag defaults to nginx-ingress-controller . Subcommands that inspect resources ( ingresses , lint ) support the --all-namespaces flag, which causes them to inspect resources in every namespace.","title":"Common Flags"},{"location":"kubectl-plugin/#subcommands","text":"Note that backends , general , certs , and conf require ingress-nginx version 0.23.0 or higher.","title":"Subcommands"},{"location":"kubectl-plugin/#backends","text":"Run kubectl ingress-nginx backends to get a JSON array of the backends that an ingress-nginx controller currently knows about: $ kubectl ingress-nginx backends -n ingress-nginx [ { \"name\": \"default-apple-service-5678\", \"service\": { \"metadata\": { \"creationTimestamp\": null }, \"spec\": { \"ports\": [ { \"protocol\": \"TCP\", \"port\": 5678, \"targetPort\": 5678 } ], \"selector\": { \"app\": \"apple\" }, \"clusterIP\": \"10.97.230.121\", \"type\": \"ClusterIP\", \"sessionAffinity\": \"None\" }, \"status\": { \"loadBalancer\": {} } }, \"port\": 0, \"sslPassthrough\": false, \"endpoints\": [ { \"address\": \"10.1.3.86\", \"port\": \"5678\" } ], \"sessionAffinityConfig\": { \"name\": \"\", \"cookieSessionAffinity\": { \"name\": \"\" } }, \"upstreamHashByConfig\": { \"upstream-hash-by-subset-size\": 3 }, \"noServer\": false, \"trafficShapingPolicy\": { \"weight\": 0, \"header\": \"\", \"headerValue\": \"\", \"cookie\": \"\" } }, { \"name\": \"default-echo-service-8080\", ... }, { \"name\": \"upstream-default-backend\", ... } ] Add the --list option to show only the backend names. Add the --backend <backend> option to show only the backend with the given name.","title":"backends"},{"location":"kubectl-plugin/#certs","text":"Use kubectl ingress-nginx certs --host <hostname> to dump the SSL cert/key information for a given host. WARNING: This command will dump sensitive private key information. Don't blindly share the output, and certainly don't log it anywhere. $ kubectl ingress-nginx certs -n ingress-nginx --host testaddr.local -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN RSA PRIVATE KEY----- <REDACTED! DO NOT SHARE THIS!> -----END RSA PRIVATE KEY-----","title":"certs"},{"location":"kubectl-plugin/#conf","text":"Use kubectl ingress-nginx conf to dump the generated nginx.conf file. Add the --host <hostname> option to view only the server block for that host: kubectl ingress-nginx conf -n ingress-nginx --host testaddr.local server { server_name testaddr.local ; listen 80; set $proxy_upstream_name \"-\"; set $pass_access_scheme $scheme; set $pass_server_port $server_port; set $best_http_host $http_host; set $pass_port $pass_server_port; location / { set $namespace \"\"; set $ingress_name \"\"; set $service_name \"\"; set $service_port \"0\"; set $location_path \"/\"; ...","title":"conf"},{"location":"kubectl-plugin/#exec","text":"kubectl ingress-nginx exec is exactly the same as kubectl exec , with the same command flags. It will automatically choose an ingress-nginx pod to run the command in. $ kubectl ingress-nginx exec -i -n ingress-nginx -- ls /etc/nginx fastcgi_params geoip lua mime.types modsecurity modules nginx.conf opentracing.json owasp-modsecurity-crs template","title":"exec"},{"location":"kubectl-plugin/#general","text":"kubectl ingress-nginx general dumps miscellaneous controller state as a JSON object. Currently it just shows the number of controller pods known to a particular controller pod. $ kubectl ingress-nginx general -n ingress-nginx { \"controllerPodsCount\": 1 }","title":"general"},{"location":"kubectl-plugin/#info","text":"Shows the internal and external IP/CNAMES for an ingress-nginx service. $ kubectl ingress-nginx info -n ingress-nginx Service cluster IP address: 10.187.253.31 LoadBalancer IP|CNAME: 35.123.123.123 Use the --service <service> flag if your ingress-nginx LoadBalancer service is not named ingress-nginx .","title":"info"},{"location":"kubectl-plugin/#ingresses","text":"kubectl ingress-nginx ingresses , alternately kubectl ingress-nginx ing , shows a more detailed view of the ingress definitions in a namespace. Compare: $ kubectl get ingresses --all-namespaces NAMESPACE NAME HOSTS ADDRESS PORTS AGE default example-ingress1 testaddr.local,testaddr2.local localhost 80 5d default test-ingress-2 * localhost 80 5d vs $ kubectl ingress-nginx ingresses --all-namespaces NAMESPACE INGRESS NAME HOST+PATH ADDRESSES TLS SERVICE SERVICE PORT ENDPOINTS default example-ingress1 testaddr.local/etameta localhost NO pear-service 5678 5 default example-ingress1 testaddr2.local/otherpath localhost NO apple-service 5678 1 default example-ingress1 testaddr2.local/otherotherpath localhost NO pear-service 5678 5 default test-ingress-2 * localhost NO echo-service 8080 2","title":"ingresses"},{"location":"kubectl-plugin/#lint","text":"kubectl ingress-nginx lint can check a namespace or entire cluster for potential configuration issues. This command is especially useful when upgrading between ingress-nginx versions. $ kubectl ingress-nginx lint --all-namespaces --verbose Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 \u2717 othernamespace/ingress-definition-blah - The rewrite-target annotation value does not reference a capture group Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3174 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --sort-backends Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3655 - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 to show the lints added only for a particular ingress-nginx release, use the --from-version and --to-version flags: $ kubectl ingress-nginx lint --all-namespaces --verbose --from-version 0 .24.0 --to-version 0 .24.0 Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808","title":"lint"},{"location":"kubectl-plugin/#logs","text":"kubectl ingress-nginx logs is almost the same as kubectl logs , with fewer flags. It will automatically choose an ingress-nginx pod to read logs from. $ kubectl ingress-nginx logs -n ingress-nginx ------------------------------------------------------------------------------- NGINX Ingress controller Release: dev Build: git-48dc3a867 Repository: git@github.com:kubernetes/ingress-nginx.git ------------------------------------------------------------------------------- W0405 16:53:46.061589 7 flags.go:214] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false) nginx version: nginx/1.15.9 W0405 16:53:46.070093 7 client_config.go:549] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work. I0405 16:53:46.070499 7 main.go:205] Creating API client for https://10.96.0.1:443 I0405 16:53:46.077784 7 main.go:249] Running in Kubernetes cluster version v1.10 (v1.10.11) - git (clean) commit 637c7e288581ee40ab4ca210618a89a555b6e7e9 - platform linux/amd64 I0405 16:53:46.183359 7 nginx.go:265] Starting NGINX Ingress controller I0405 16:53:46.193913 7 event.go:209] Event(v1.ObjectReference{Kind:\"ConfigMap\", Namespace:\"ingress-nginx\", Name:\"udp-services\", UID:\"82258915-563e-11e9-9c52-025000000001\", APIVersion:\"v1\", ResourceVersion:\"494\", FieldPath:\"\"}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/udp-services ...","title":"logs"},{"location":"kubectl-plugin/#ssh","text":"kubectl ingress-nginx ssh is exactly the same as kubectl ingress-nginx exec -it -- /bin/bash . Use it when you want to quickly be dropped into a shell inside a running ingress-nginx container. $ kubectl ingress-nginx ssh -n ingress-nginx www-data@nginx-ingress-controller-7cbf77c976-wx5pn:/etc/nginx$","title":"ssh"},{"location":"troubleshooting/","text":"Troubleshooting \u00b6 Ingress-Controller Logs and Events \u00b6 There are many ways to troubleshoot the ingress-controller. The following are basic troubleshooting methods to obtain more information. Check the Ingress Resource Events $ kubectl get ing -n <namespace-of-ingress-resource> NAME HOSTS ADDRESS PORTS AGE cafe-ingress cafe.com 10.0.2.15 80 25s $ kubectl describe ing <ingress-resource-name> -n <namespace-of-ingress-resource> Name: cafe-ingress Namespace: default Address: 10.0.2.15 Default backend: default-http-backend:80 (172.17.0.5:8080) Rules: Host Path Backends ---- ---- -------- cafe.com /tea tea-svc:80 (<none>) /coffee coffee-svc:80 (<none>) Annotations: kubectl.kubernetes.io/last-applied-configuration: {\"apiVersion\":\"networking.k8s.io/v1beta1\",\"kind\":\"Ingress\",\"metadata\":{\"annotations\":{},\"name\":\"cafe-ingress\",\"namespace\":\"default\",\"selfLink\":\"/apis/networking/v1beta1/namespaces/default/ingresses/cafe-ingress\"},\"spec\":{\"rules\":[{\"host\":\"cafe.com\",\"http\":{\"paths\":[{\"backend\":{\"serviceName\":\"tea-svc\",\"servicePort\":80},\"path\":\"/tea\"},{\"backend\":{\"serviceName\":\"coffee-svc\",\"servicePort\":80},\"path\":\"/coffee\"}]}}]},\"status\":{\"loadBalancer\":{\"ingress\":[{\"ip\":\"169.48.142.110\"}]}}} Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal CREATE 1m nginx-ingress-controller Ingress default/cafe-ingress Normal UPDATE 58s nginx-ingress-controller Ingress default/cafe-ingress Check the Ingress Controller Logs $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl logs -n <namespace> nginx-ingress-controller-67956bf89d-fv58j ------------------------------------------------------------------------------- NGINX Ingress controller Release: 0.14.0 Build: git-734361d Repository: https://github.com/kubernetes/ingress-nginx ------------------------------------------------------------------------------- .... Check the Nginx Configuration $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl exec -it -n <namespace-of-ingress-controller> nginx-ingress-controller-67956bf89d-fv58j -- cat /etc/nginx/nginx.conf daemon off; worker_processes 2; pid /run/nginx.pid; worker_rlimit_nofile 523264; worker_shutdown_timeout 240s; events { multi_accept on; worker_connections 16384; use epoll; } http { .... Check if used Services Exist $ kubectl get svc --all-namespaces NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default coffee-svc ClusterIP 10.106.154.35 <none> 80/TCP 18m default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 30m default tea-svc ClusterIP 10.104.172.12 <none> 80/TCP 18m kube-system default-http-backend NodePort 10.108.189.236 <none> 80:30001/TCP 30m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 30m kube-system kubernetes-dashboard NodePort 10.103.128.17 <none> 80:30000/TCP 30m Debug Logging \u00b6 Using the flag --v=XX it is possible to increase the level of logging. This is performed by editing the deployment. $ kubectl get deploy -n <namespace-of-ingress-controller> NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE default-http-backend 1 1 1 1 35m nginx-ingress-controller 1 1 1 1 35m $ kubectl edit deploy -n <namespace-of-ingress-controller> nginx-ingress-controller # Add --v = X to \"- args\" , where X is an integer --v=2 shows details using diff about the changes in the configuration in nginx --v=3 shows details about the service, Ingress rule, endpoint changes and it dumps the nginx configuration in JSON format --v=5 configures NGINX in debug mode Authentication to the Kubernetes API Server \u00b6 A number of components are involved in the authentication process and the first step is to narrow down the source of the problem, namely whether it is a problem with service authentication or with the kubeconfig file. Both authentications must work: +-------------+ service +------------+ | | authentication | | + apiserver +<-------------------+ ingress | | | | controller | +-------------+ +------------+ Service authentication The Ingress controller needs information from apiserver. Therefore, authentication is required, which can be achieved in two different ways: Service Account: This is recommended, because nothing has to be configured. The Ingress controller will use information provided by the system to communicate with the API server. See 'Service Account' section for details. Kubeconfig file: In some Kubernetes environments service accounts are not available. In this case a manual configuration is required. The Ingress controller binary can be started with the --kubeconfig flag. The value of the flag is a path to a file specifying how to connect to the API server. Using the --kubeconfig does not requires the flag --apiserver-host . The format of the file is identical to ~/.kube/config which is used by kubectl to connect to the API server. See 'kubeconfig' section for details. Using the flag --apiserver-host : Using this flag --apiserver-host=http://localhost:8080 it is possible to specify an unsecured API server or reach a remote kubernetes cluster using kubectl proxy . Please do not use this approach in production. In the diagram below you can see the full authentication flow with all options, starting with the browser on the lower left hand side. Kubernetes Workstation +---------------------------------------------------+ +------------------+ | | | | | +-----------+ apiserver +------------+ | | +------------+ | | | | proxy | | | | | | | | | apiserver | | ingress | | | | ingress | | | | | | controller | | | | controller | | | | | | | | | | | | | | | | | | | | | | | | | service account/ | | | | | | | | | | kubeconfig | | | | | | | | | +<-------------------+ | | | | | | | | | | | | | | | | | +------+----+ kubeconfig +------+-----+ | | +------+-----+ | | |<--------------------------------------------------------| | | | | | +---------------------------------------------------+ +------------------+ Service Account \u00b6 If using a service account to connect to the API server, the ingress-controller expects the file /var/run/secrets/kubernetes.io/serviceaccount/token to be present. It provides a secret token that is required to authenticate with the API server. Verify with the following commands: # start a container that contains curl $ kubectl run test --image = tutum/curl -- sleep 10000 # check that container is running $ kubectl get pods NAME READY STATUS RESTARTS AGE test-701078429-s5kca 1/1 Running 0 16s # check if secret exists $ kubectl exec test-701078429-s5kca -- ls /var/run/secrets/kubernetes.io/serviceaccount/ ca.crt namespace token # get service IP of master $ kubectl get services NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.0.0.1 <none> 443/TCP 1d # check base connectivity from cluster inside $ kubectl exec test-701078429-s5kca -- curl -k https://10.0.0.1 Unauthorized # connect using tokens $ TOKEN_VALUE = $( kubectl exec test-701078429-s5kca -- cat /var/run/secrets/kubernetes.io/serviceaccount/token ) $ echo $TOKEN_VALUE eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3Mi....9A $ kubectl exec test-701078429-s5kca -- curl --cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt -H \"Authorization: Bearer $TOKEN_VALUE \" https://10.0.0.1 { \"paths\": [ \"/api\", \"/api/v1\", \"/apis\", \"/apis/apps\", \"/apis/apps/v1alpha1\", \"/apis/authentication.k8s.io\", \"/apis/authentication.k8s.io/v1beta1\", \"/apis/authorization.k8s.io\", \"/apis/authorization.k8s.io/v1beta1\", \"/apis/autoscaling\", \"/apis/autoscaling/v1\", \"/apis/batch\", \"/apis/batch/v1\", \"/apis/batch/v2alpha1\", \"/apis/certificates.k8s.io\", \"/apis/certificates.k8s.io/v1alpha1\", \"/apis/networking\", \"/apis/networking/v1beta1\", \"/apis/policy\", \"/apis/policy/v1alpha1\", \"/apis/rbac.authorization.k8s.io\", \"/apis/rbac.authorization.k8s.io/v1alpha1\", \"/apis/storage.k8s.io\", \"/apis/storage.k8s.io/v1beta1\", \"/healthz\", \"/healthz/ping\", \"/logs\", \"/metrics\", \"/swaggerapi/\", \"/ui/\", \"/version\" ] } If it is not working, there are two possible reasons: The contents of the tokens are invalid. Find the secret name with kubectl get secrets | grep service-account and delete it with kubectl delete secret <name> . It will automatically be recreated. You have a non-standard Kubernetes installation and the file containing the token may not be present. The API server will mount a volume containing this file, but only if the API server is configured to use the ServiceAccount admission controller. If you experience this error, verify that your API server is using the ServiceAccount admission controller. If you are configuring the API server by hand, you can set this with the --admission-control parameter. Note that you should use other admission controllers as well. Before configuring this option, you should read about admission controllers. More information: User Guide: Service Accounts Cluster Administrator Guide: Managing Service Accounts Kube-Config \u00b6 If you want to use a kubeconfig file for authentication, follow the deploy procedure and add the flag --kubeconfig=/etc/kubernetes/kubeconfig.yaml to the args section of the deployment. Using GDB with Nginx \u00b6 Gdb can be used to with nginx to perform a configuration dump. This allows us to see which configuration is being used, as well as older configurations. Note: The below is based on the nginx documentation . SSH into the worker $ ssh user@workerIP Obtain the Docker Container Running nginx $ docker ps | grep nginx-ingress-controller CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d9e1d243156a quay.io/kubernetes-ingress-controller/nginx-ingress-controller \"/usr/bin/dumb-init \u2026\" 19 minutes ago Up 19 minutes k8s_nginx-ingress-controller_nginx-ingress-controller-67956bf89d-mqxzt_kube-system_079f31ec-aa37-11e8-ad39-080027a227db_0 Exec into the container $ docker exec -it --user = 0 --privileged d9e1d243156a bash Make sure nginx is running in --with-debug $ nginx -V 2 > & 1 | grep -- '--with-debug' Get list of processes running on container $ ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 20:23 ? 00:00:00 /usr/bin/dumb-init /nginx-ingres root 5 1 0 20:23 ? 00:00:05 /nginx-ingress-controller --defa root 21 5 0 20:23 ? 00:00:00 nginx: master process /usr/sbin/ nobody 106 21 0 20:23 ? 00:00:00 nginx: worker process nobody 107 21 0 20:23 ? 00:00:00 nginx: worker process root 172 0 0 20:43 pts/0 00:00:00 bash Attach gdb to the nginx master process $ gdb -p 21 .... Attaching to process 21 Reading symbols from /usr/sbin/nginx...done. .... (gdb) Copy and paste the following: set $cd = ngx_cycle->config_dump set $nelts = $cd.nelts set $elts = (ngx_conf_dump_t*)($cd.elts) while ($nelts-- > 0) set $name = $elts[$nelts]->name.data printf \"Dumping %s to nginx_conf.txt\\n\", $name append memory nginx_conf.txt \\ $ elts [ $nelts ] ->buffer.start $elts [ $nelts ] ->buffer.end end Quit GDB by pressing CTRL+D Open nginx_conf.txt cat nginx_conf.txt","title":"Troubleshooting"},{"location":"troubleshooting/#troubleshooting","text":"","title":"Troubleshooting"},{"location":"troubleshooting/#ingress-controller-logs-and-events","text":"There are many ways to troubleshoot the ingress-controller. The following are basic troubleshooting methods to obtain more information. Check the Ingress Resource Events $ kubectl get ing -n <namespace-of-ingress-resource> NAME HOSTS ADDRESS PORTS AGE cafe-ingress cafe.com 10.0.2.15 80 25s $ kubectl describe ing <ingress-resource-name> -n <namespace-of-ingress-resource> Name: cafe-ingress Namespace: default Address: 10.0.2.15 Default backend: default-http-backend:80 (172.17.0.5:8080) Rules: Host Path Backends ---- ---- -------- cafe.com /tea tea-svc:80 (<none>) /coffee coffee-svc:80 (<none>) Annotations: kubectl.kubernetes.io/last-applied-configuration: {\"apiVersion\":\"networking.k8s.io/v1beta1\",\"kind\":\"Ingress\",\"metadata\":{\"annotations\":{},\"name\":\"cafe-ingress\",\"namespace\":\"default\",\"selfLink\":\"/apis/networking/v1beta1/namespaces/default/ingresses/cafe-ingress\"},\"spec\":{\"rules\":[{\"host\":\"cafe.com\",\"http\":{\"paths\":[{\"backend\":{\"serviceName\":\"tea-svc\",\"servicePort\":80},\"path\":\"/tea\"},{\"backend\":{\"serviceName\":\"coffee-svc\",\"servicePort\":80},\"path\":\"/coffee\"}]}}]},\"status\":{\"loadBalancer\":{\"ingress\":[{\"ip\":\"169.48.142.110\"}]}}} Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal CREATE 1m nginx-ingress-controller Ingress default/cafe-ingress Normal UPDATE 58s nginx-ingress-controller Ingress default/cafe-ingress Check the Ingress Controller Logs $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl logs -n <namespace> nginx-ingress-controller-67956bf89d-fv58j ------------------------------------------------------------------------------- NGINX Ingress controller Release: 0.14.0 Build: git-734361d Repository: https://github.com/kubernetes/ingress-nginx ------------------------------------------------------------------------------- .... Check the Nginx Configuration $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl exec -it -n <namespace-of-ingress-controller> nginx-ingress-controller-67956bf89d-fv58j -- cat /etc/nginx/nginx.conf daemon off; worker_processes 2; pid /run/nginx.pid; worker_rlimit_nofile 523264; worker_shutdown_timeout 240s; events { multi_accept on; worker_connections 16384; use epoll; } http { .... Check if used Services Exist $ kubectl get svc --all-namespaces NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default coffee-svc ClusterIP 10.106.154.35 <none> 80/TCP 18m default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 30m default tea-svc ClusterIP 10.104.172.12 <none> 80/TCP 18m kube-system default-http-backend NodePort 10.108.189.236 <none> 80:30001/TCP 30m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 30m kube-system kubernetes-dashboard NodePort 10.103.128.17 <none> 80:30000/TCP 30m","title":"Ingress-Controller Logs and Events"},{"location":"troubleshooting/#debug-logging","text":"Using the flag --v=XX it is possible to increase the level of logging. This is performed by editing the deployment. $ kubectl get deploy -n <namespace-of-ingress-controller> NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE default-http-backend 1 1 1 1 35m nginx-ingress-controller 1 1 1 1 35m $ kubectl edit deploy -n <namespace-of-ingress-controller> nginx-ingress-controller # Add --v = X to \"- args\" , where X is an integer --v=2 shows details using diff about the changes in the configuration in nginx --v=3 shows details about the service, Ingress rule, endpoint changes and it dumps the nginx configuration in JSON format --v=5 configures NGINX in debug mode","title":"Debug Logging"},{"location":"troubleshooting/#authentication-to-the-kubernetes-api-server","text":"A number of components are involved in the authentication process and the first step is to narrow down the source of the problem, namely whether it is a problem with service authentication or with the kubeconfig file. Both authentications must work: +-------------+ service +------------+ | | authentication | | + apiserver +<-------------------+ ingress | | | | controller | +-------------+ +------------+ Service authentication The Ingress controller needs information from apiserver. Therefore, authentication is required, which can be achieved in two different ways: Service Account: This is recommended, because nothing has to be configured. The Ingress controller will use information provided by the system to communicate with the API server. See 'Service Account' section for details. Kubeconfig file: In some Kubernetes environments service accounts are not available. In this case a manual configuration is required. The Ingress controller binary can be started with the --kubeconfig flag. The value of the flag is a path to a file specifying how to connect to the API server. Using the --kubeconfig does not requires the flag --apiserver-host . The format of the file is identical to ~/.kube/config which is used by kubectl to connect to the API server. See 'kubeconfig' section for details. Using the flag --apiserver-host : Using this flag --apiserver-host=http://localhost:8080 it is possible to specify an unsecured API server or reach a remote kubernetes cluster using kubectl proxy . Please do not use this approach in production. In the diagram below you can see the full authentication flow with all options, starting with the browser on the lower left hand side. Kubernetes Workstation +---------------------------------------------------+ +------------------+ | | | | | +-----------+ apiserver +------------+ | | +------------+ | | | | proxy | | | | | | | | | apiserver | | ingress | | | | ingress | | | | | | controller | | | | controller | | | | | | | | | | | | | | | | | | | | | | | | | service account/ | | | | | | | | | | kubeconfig | | | | | | | | | +<-------------------+ | | | | | | | | | | | | | | | | | +------+----+ kubeconfig +------+-----+ | | +------+-----+ | | |<--------------------------------------------------------| | | | | | +---------------------------------------------------+ +------------------+","title":"Authentication to the Kubernetes API Server"},{"location":"troubleshooting/#service-account","text":"If using a service account to connect to the API server, the ingress-controller expects the file /var/run/secrets/kubernetes.io/serviceaccount/token to be present. It provides a secret token that is required to authenticate with the API server. Verify with the following commands: # start a container that contains curl $ kubectl run test --image = tutum/curl -- sleep 10000 # check that container is running $ kubectl get pods NAME READY STATUS RESTARTS AGE test-701078429-s5kca 1/1 Running 0 16s # check if secret exists $ kubectl exec test-701078429-s5kca -- ls /var/run/secrets/kubernetes.io/serviceaccount/ ca.crt namespace token # get service IP of master $ kubectl get services NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.0.0.1 <none> 443/TCP 1d # check base connectivity from cluster inside $ kubectl exec test-701078429-s5kca -- curl -k https://10.0.0.1 Unauthorized # connect using tokens $ TOKEN_VALUE = $( kubectl exec test-701078429-s5kca -- cat /var/run/secrets/kubernetes.io/serviceaccount/token ) $ echo $TOKEN_VALUE eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3Mi....9A $ kubectl exec test-701078429-s5kca -- curl --cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt -H \"Authorization: Bearer $TOKEN_VALUE \" https://10.0.0.1 { \"paths\": [ \"/api\", \"/api/v1\", \"/apis\", \"/apis/apps\", \"/apis/apps/v1alpha1\", \"/apis/authentication.k8s.io\", \"/apis/authentication.k8s.io/v1beta1\", \"/apis/authorization.k8s.io\", \"/apis/authorization.k8s.io/v1beta1\", \"/apis/autoscaling\", \"/apis/autoscaling/v1\", \"/apis/batch\", \"/apis/batch/v1\", \"/apis/batch/v2alpha1\", \"/apis/certificates.k8s.io\", \"/apis/certificates.k8s.io/v1alpha1\", \"/apis/networking\", \"/apis/networking/v1beta1\", \"/apis/policy\", \"/apis/policy/v1alpha1\", \"/apis/rbac.authorization.k8s.io\", \"/apis/rbac.authorization.k8s.io/v1alpha1\", \"/apis/storage.k8s.io\", \"/apis/storage.k8s.io/v1beta1\", \"/healthz\", \"/healthz/ping\", \"/logs\", \"/metrics\", \"/swaggerapi/\", \"/ui/\", \"/version\" ] } If it is not working, there are two possible reasons: The contents of the tokens are invalid. Find the secret name with kubectl get secrets | grep service-account and delete it with kubectl delete secret <name> . It will automatically be recreated. You have a non-standard Kubernetes installation and the file containing the token may not be present. The API server will mount a volume containing this file, but only if the API server is configured to use the ServiceAccount admission controller. If you experience this error, verify that your API server is using the ServiceAccount admission controller. If you are configuring the API server by hand, you can set this with the --admission-control parameter. Note that you should use other admission controllers as well. Before configuring this option, you should read about admission controllers. More information: User Guide: Service Accounts Cluster Administrator Guide: Managing Service Accounts","title":"Service Account"},{"location":"troubleshooting/#kube-config","text":"If you want to use a kubeconfig file for authentication, follow the deploy procedure and add the flag --kubeconfig=/etc/kubernetes/kubeconfig.yaml to the args section of the deployment.","title":"Kube-Config"},{"location":"troubleshooting/#using-gdb-with-nginx","text":"Gdb can be used to with nginx to perform a configuration dump. This allows us to see which configuration is being used, as well as older configurations. Note: The below is based on the nginx documentation . SSH into the worker $ ssh user@workerIP Obtain the Docker Container Running nginx $ docker ps | grep nginx-ingress-controller CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d9e1d243156a quay.io/kubernetes-ingress-controller/nginx-ingress-controller \"/usr/bin/dumb-init \u2026\" 19 minutes ago Up 19 minutes k8s_nginx-ingress-controller_nginx-ingress-controller-67956bf89d-mqxzt_kube-system_079f31ec-aa37-11e8-ad39-080027a227db_0 Exec into the container $ docker exec -it --user = 0 --privileged d9e1d243156a bash Make sure nginx is running in --with-debug $ nginx -V 2 > & 1 | grep -- '--with-debug' Get list of processes running on container $ ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 20:23 ? 00:00:00 /usr/bin/dumb-init /nginx-ingres root 5 1 0 20:23 ? 00:00:05 /nginx-ingress-controller --defa root 21 5 0 20:23 ? 00:00:00 nginx: master process /usr/sbin/ nobody 106 21 0 20:23 ? 00:00:00 nginx: worker process nobody 107 21 0 20:23 ? 00:00:00 nginx: worker process root 172 0 0 20:43 pts/0 00:00:00 bash Attach gdb to the nginx master process $ gdb -p 21 .... Attaching to process 21 Reading symbols from /usr/sbin/nginx...done. .... (gdb) Copy and paste the following: set $cd = ngx_cycle->config_dump set $nelts = $cd.nelts set $elts = (ngx_conf_dump_t*)($cd.elts) while ($nelts-- > 0) set $name = $elts[$nelts]->name.data printf \"Dumping %s to nginx_conf.txt\\n\", $name append memory nginx_conf.txt \\ $ elts [ $nelts ] ->buffer.start $elts [ $nelts ] ->buffer.end end Quit GDB by pressing CTRL+D Open nginx_conf.txt cat nginx_conf.txt","title":"Using GDB with Nginx"},{"location":"deploy/","text":"Installation Guide \u00b6 Attention The default configuration watches Ingress object from all the namespaces . To change this behavior use the flag --watch-namespace to limit the scope to a particular namespace. Warning If multiple Ingresses define paths for the same host, the ingress controller merges the definitions . Danger The admission webhook requires connectivity between Kubernetes API server and the ingress controller. In case Network policies or additional firewalls, please allow access to port 8443 . Attention The first time the ingress controller starts, two Jobs create the SSL Certificate used by the admission webhook. For this reason, there is an initial delay of up to two minutes until it is possible to create and validate Ingress definitions. You can wait until is ready to running the next command: kubectl wait --namespace ingress-nginx \\ --for=condition=ready pod \\ --selector=app.kubernetes.io/component=controller \\ --timeout=120s Contents \u00b6 Provider Specific Steps Docker for Mac minikube AWS GCE - GKE Azure Digital Ocean Bare-metal Verify installation Detect installed version Using Helm Provider Specific Steps \u00b6 Docker for Mac \u00b6 Kubernetes is available in Docker for Mac (from version 18.06.0-ce ) kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml minikube \u00b6 For standard usage: minikube addons enable ingress AWS \u00b6 In AWS we use a Network load balancer (NLB) to expose the NGINX Ingress controller behind a Service of Type=LoadBalancer . Network Load Balancer (NLB) \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy.yaml TLS termination in AWS Load Balancer (ELB) \u00b6 In some scenarios is required to terminate TLS in the Load Balancer and not in the ingress controller. For this purpose we provide a template: Download deploy-tls-termination.yaml wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy-tls-termination.yaml Edit the file and change: VPC CIDR in use for the Kubernetes cluster: proxy-real-ip-cidr: XXX.XXX.XXX/XX AWS Certificate Manager (ACM) ID arn:aws:acm:us-west-2:XXXXXXXX:certificate/XXXXXX-XXXXXXX-XXXXXXX-XXXXXXXX Deploy the manifest: kubectl apply -f deploy-tls-termination.yaml NLB Idle Timeouts \u00b6 Idle timeout values for TCP flows is 350 seconds and cannot be modified . For this reason, you need to ensure the keepalive_timeout configured value is less than 350 seconds to work as expected. By default NGINX keepalive_timeout is set to 75s . More information with regards to timeouts for can be found in the official AWS documentation GCE-GKE \u00b6 Info Initialize your user as a cluster-admin with the following command: kubectl create clusterrolebinding cluster-admin-binding \\ --clusterrole cluster-admin \\ --user $(gcloud config get-value account) Danger For private clusters, you will need to either add an additional firewall rule that allows master nodes access port 8443/tcp on worker nodes, or change the existing rule that allows access to ports 80/tcp , 443/tcp and 10254/tcp to also allow access to port 8443/tcp . See the GKE documentation on adding rules and the Kubernetes issue for more detail. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Failure Proxy protocol is not supported in GCE/GKE Azure \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Digital Ocean \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/do/deploy.yaml Bare-metal \u00b6 Using NodePort : kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/baremetal/deploy.yaml Tip For extended notes regarding deployments on bare-metal, see Bare-metal considerations . Verify installation \u00b6 Info In minikube the ingress addon is installed in the namespace kube-system instead of ingress-nginx To check if the ingress controller pods have started, run the following command: kubectl get pods -n ingress-nginx \\ -l app.kubernetes.io/name=ingress-nginx --watch Once the ingress controller pods are running, you can cancel the command typing Ctrl+C . Now, you are ready to create your first ingress. Detect installed version \u00b6 To detect which version of the ingress controller is running, exec into the pod and run nginx-ingress-controller version command. POD_NAMESPACE=ingress-nginx POD_NAME=$(kubectl get pods -n $POD_NAMESPACE -l app.kubernetes.io/name=ingress-nginx --field-selector=status.phase=Running -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -n $POD_NAMESPACE -- /nginx-ingress-controller --version Using Helm \u00b6 NGINX Ingress controller can be installed via Helm using the chart from the project repository. To install the chart with the release name ingress-nginx : helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm install my-release ingress-nginx/ingress-nginx If you are using Helm 2 then specify release name using --name flag helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx/ helm install --name ingress-nginx ingress-nginx/ingress-nginx Detect installed version: \u00b6 POD_NAME=$(kubectl get pods -l app.kubernetes.io/name=ingress-nginx -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -- /nginx-ingress-controller --version","title":"Installation Guide"},{"location":"deploy/#installation-guide","text":"Attention The default configuration watches Ingress object from all the namespaces . To change this behavior use the flag --watch-namespace to limit the scope to a particular namespace. Warning If multiple Ingresses define paths for the same host, the ingress controller merges the definitions . Danger The admission webhook requires connectivity between Kubernetes API server and the ingress controller. In case Network policies or additional firewalls, please allow access to port 8443 . Attention The first time the ingress controller starts, two Jobs create the SSL Certificate used by the admission webhook. For this reason, there is an initial delay of up to two minutes until it is possible to create and validate Ingress definitions. You can wait until is ready to running the next command: kubectl wait --namespace ingress-nginx \\ --for=condition=ready pod \\ --selector=app.kubernetes.io/component=controller \\ --timeout=120s","title":"Installation Guide"},{"location":"deploy/#contents","text":"Provider Specific Steps Docker for Mac minikube AWS GCE - GKE Azure Digital Ocean Bare-metal Verify installation Detect installed version Using Helm","title":"Contents"},{"location":"deploy/#provider-specific-steps","text":"","title":"Provider Specific Steps"},{"location":"deploy/#docker-for-mac","text":"Kubernetes is available in Docker for Mac (from version 18.06.0-ce ) kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml","title":"Docker for Mac"},{"location":"deploy/#minikube","text":"For standard usage: minikube addons enable ingress","title":"minikube"},{"location":"deploy/#aws","text":"In AWS we use a Network load balancer (NLB) to expose the NGINX Ingress controller behind a Service of Type=LoadBalancer .","title":"AWS"},{"location":"deploy/#network-load-balancer-nlb","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy.yaml","title":"Network Load Balancer (NLB)"},{"location":"deploy/#tls-termination-in-aws-load-balancer-elb","text":"In some scenarios is required to terminate TLS in the Load Balancer and not in the ingress controller. For this purpose we provide a template: Download deploy-tls-termination.yaml wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy-tls-termination.yaml Edit the file and change: VPC CIDR in use for the Kubernetes cluster: proxy-real-ip-cidr: XXX.XXX.XXX/XX AWS Certificate Manager (ACM) ID arn:aws:acm:us-west-2:XXXXXXXX:certificate/XXXXXX-XXXXXXX-XXXXXXX-XXXXXXXX Deploy the manifest: kubectl apply -f deploy-tls-termination.yaml","title":"TLS termination in AWS Load Balancer (ELB)"},{"location":"deploy/#nlb-idle-timeouts","text":"Idle timeout values for TCP flows is 350 seconds and cannot be modified . For this reason, you need to ensure the keepalive_timeout configured value is less than 350 seconds to work as expected. By default NGINX keepalive_timeout is set to 75s . More information with regards to timeouts for can be found in the official AWS documentation","title":"NLB Idle Timeouts"},{"location":"deploy/#gce-gke","text":"Info Initialize your user as a cluster-admin with the following command: kubectl create clusterrolebinding cluster-admin-binding \\ --clusterrole cluster-admin \\ --user $(gcloud config get-value account) Danger For private clusters, you will need to either add an additional firewall rule that allows master nodes access port 8443/tcp on worker nodes, or change the existing rule that allows access to ports 80/tcp , 443/tcp and 10254/tcp to also allow access to port 8443/tcp . See the GKE documentation on adding rules and the Kubernetes issue for more detail. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Failure Proxy protocol is not supported in GCE/GKE","title":"GCE-GKE"},{"location":"deploy/#azure","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml","title":"Azure"},{"location":"deploy/#digital-ocean","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/do/deploy.yaml","title":"Digital Ocean"},{"location":"deploy/#bare-metal","text":"Using NodePort : kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/baremetal/deploy.yaml Tip For extended notes regarding deployments on bare-metal, see Bare-metal considerations .","title":"Bare-metal"},{"location":"deploy/#verify-installation","text":"Info In minikube the ingress addon is installed in the namespace kube-system instead of ingress-nginx To check if the ingress controller pods have started, run the following command: kubectl get pods -n ingress-nginx \\ -l app.kubernetes.io/name=ingress-nginx --watch Once the ingress controller pods are running, you can cancel the command typing Ctrl+C . Now, you are ready to create your first ingress.","title":"Verify installation"},{"location":"deploy/#detect-installed-version","text":"To detect which version of the ingress controller is running, exec into the pod and run nginx-ingress-controller version command. POD_NAMESPACE=ingress-nginx POD_NAME=$(kubectl get pods -n $POD_NAMESPACE -l app.kubernetes.io/name=ingress-nginx --field-selector=status.phase=Running -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -n $POD_NAMESPACE -- /nginx-ingress-controller --version","title":"Detect installed version"},{"location":"deploy/#using-helm","text":"NGINX Ingress controller can be installed via Helm using the chart from the project repository. To install the chart with the release name ingress-nginx : helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm install my-release ingress-nginx/ingress-nginx If you are using Helm 2 then specify release name using --name flag helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx/ helm install --name ingress-nginx ingress-nginx/ingress-nginx","title":"Using Helm"},{"location":"deploy/#detect-installed-version_1","text":"POD_NAME=$(kubectl get pods -l app.kubernetes.io/name=ingress-nginx -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -- /nginx-ingress-controller --version","title":"Detect installed version:"},{"location":"deploy/baremetal/","text":"Bare-metal considerations \u00b6 In traditional cloud environments, where network load balancers are available on-demand, a single Kubernetes manifest suffices to provide a single point of contact to the NGINX Ingress controller to external clients and, indirectly, to any application running inside the cluster. Bare-metal environments lack this commodity, requiring a slightly different setup to offer the same kind of access to external consumers. The rest of this document describes a few recommended approaches to deploying the NGINX Ingress controller inside a Kubernetes cluster running on bare-metal. A pure software solution: MetalLB \u00b6 MetalLB provides a network load-balancer implementation for Kubernetes clusters that do not run on a supported cloud provider, effectively allowing the usage of LoadBalancer Services within any cluster. This section demonstrates how to use the Layer 2 configuration mode of MetalLB together with the NGINX Ingress controller in a Kubernetes cluster that has publicly accessible nodes . In this mode, one node attracts all the traffic for the ingress-nginx Service IP. See Traffic policies for more details. Note The description of other supported configuration modes is off-scope for this document. Warning MetalLB is currently in beta . Read about the Project maturity and make sure you inform yourself by reading the official documentation thoroughly. MetalLB can be deployed either with a simple Kubernetes manifest or with Helm. The rest of this example assumes MetalLB was deployed following the Installation instructions. MetalLB requires a pool of IP addresses in order to be able to take ownership of the ingress-nginx Service. This pool can be defined in a ConfigMap named config located in the same namespace as the MetalLB controller. This pool of IPs must be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 After creating the following ConfigMap, MetalLB takes ownership of one of the IP addresses in the pool and updates the loadBalancer IP field of the ingress-nginx Service accordingly. apiVersion : v1 kind : ConfigMap metadata : namespace : metallb-system name : config data : config : | address-pools: - name: default protocol: layer2 addresses: - 203.0.113.10-203.0.113.15 $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 <none> 80/TCP ingress-nginx LoadBalancer 10.0.220.217 203.0.113.10 80:30100/TCP,443:30101/TCP As soon as MetalLB sets the external IP address of the ingress-nginx LoadBalancer Service, the corresponding entries are created in the iptables NAT table and the node with the selected IP address starts responding to HTTP requests on the ports configured in the LoadBalancer Service: $ curl -D- http://203.0.113.3 -H 'Host: myapp.example.com' HTTP/1.1 200 OK Server: nginx/1.15.2 Tip In order to preserve the source IP address in HTTP requests sent to NGINX, it is necessary to use the Local traffic policy. Traffic policies are described in more details in Traffic policies as well as in the next section. Over a NodePort Service \u00b6 Due to its simplicity, this is the setup a user will deploy by default when following the steps described in the installation guide . Info A Service of type NodePort exposes, via the kube-proxy component, the same unprivileged port (default: 30000-32767) on every Kubernetes node, masters included. For more information, see Services . In this configuration, the NGINX container remains isolated from the host network. As a result, it can safely bind to any port, including the standard HTTP ports 80 and 443. However, due to the container namespace isolation, a client located outside the cluster network (e.g. on the public internet) is not able to access Ingress hosts directly on ports 80 and 443. Instead, the external client must append the NodePort allocated to the ingress-nginx Service to HTTP requests. Example Given the NodePort 30100 allocated to the ingress-nginx Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 80/TCP ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP and a Kubernetes node with the public IP address 203.0.113.2 (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 a client would reach an Ingress with host: myapp.example.com at http://myapp.example.com:30100 , where the myapp.example.com subdomain resolves to the 203.0.113.2 IP address. Impact on the host system While it may sound tempting to reconfigure the NodePort range using the --service-node-port-range API server flag to include unprivileged ports and be able to expose ports 80 and 443, doing so may result in unexpected issues including (but not limited to) the use of ports otherwise reserved to system daemons and the necessity to grant kube-proxy privileges it may otherwise not require. This practice is therefore discouraged . See the other approaches proposed in this page for alternatives. This approach has a few other limitations one ought to be aware of: Source IP address Services of type NodePort perform source address translation by default. This means the source IP of a HTTP request is always the IP address of the Kubernetes node that received the request from the perspective of NGINX. The recommended way to preserve the source IP in a NodePort setup is to set the value of the externalTrafficPolicy field of the ingress-nginx Service spec to Local ( example ). Warning This setting effectively drops packets sent to Kubernetes nodes which are not running any instance of the NGINX Ingress controller. Consider assigning NGINX Pods to specific nodes in order to control on what nodes the NGINX Ingress controller should be scheduled or not scheduled. Example In a Kubernetes cluster composed of 3 nodes (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 with a ingress-nginx-controller Deployment composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-cf9ff8c96-8vvf8 1/1 Running 172.17.0.3 host-3 ingress-nginx-controller-cf9ff8c96-pxsds 1/1 Running 172.17.1.4 host-2 Requests sent to host-2 and host-3 would be forwarded to NGINX and original client's IP would be preserved, while requests to host-1 would get dropped because there is no NGINX replica running on that node. Ingress status Because NodePort Services do not get a LoadBalancerIP assigned by definition, the NGINX Ingress controller does not update the status of Ingress objects it manages . $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Despite the fact there is no load balancer providing a public IP address to the NGINX Ingress controller, it is possible to force the status update of all managed Ingress objects by setting the externalIPs field of the ingress-nginx Service. Warning There is more to setting externalIPs than just enabling the NGINX Ingress controller to update the status of Ingress objects. Please read about this option in the Services page of official Kubernetes documentation as well as the section about External IPs in this document for more information. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 one could edit the ingress-nginx Service and add the following field to the object spec spec : externalIPs : - 203.0.113.1 - 203.0.113.2 - 203.0.113.3 which would in turn be reflected on Ingress objects as follows: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.1,203.0.113.2,203.0.113.3 80 Redirects As NGINX is not aware of the port translation operated by the NodePort Service , backend applications are responsible for generating redirect URLs that take into account the URL used by external clients, including the NodePort. Example Redirects generated by NGINX, for instance HTTP to HTTPS or domain to www.domain , are generated without NodePort: $ curl -D- http://myapp.example.com:30100 ` HTTP/1.1 308 Permanent Redirect Server: nginx/1.15.2 Location: https://myapp.example.com/ #-> missing NodePort in HTTPS redirect Via the host network \u00b6 In a setup where there is no external load balancer available but using NodePorts is not an option, one can configure ingress-nginx Pods to use the network of the host they run on instead of a dedicated network namespace. The benefit of this approach is that the NGINX Ingress controller can bind ports 80 and 443 directly to Kubernetes nodes' network interfaces, without the extra network translation imposed by NodePort Services. Note This approach does not leverage any Service object to expose the NGINX Ingress controller. If the ingress-nginx Service exists in the target cluster, it is recommended to delete it . This can be achieved by enabling the hostNetwork option in the Pods' spec. template : spec : hostNetwork : true Security considerations Enabling this option exposes every system daemon to the NGINX Ingress controller on any network interface, including the host's loopback. Please evaluate the impact this may have on the security of your system carefully. Example Consider this ingress-nginx-controller Deployment composed of 2 replicas, NGINX Pods inherit from the IP address of their host instead of an internal Pod IP. $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 One major limitation of this deployment approach is that only a single NGINX Ingress controller Pod may be scheduled on each cluster node, because binding the same port multiple times on the same network interface is technically impossible. Pods that are unschedulable due to such situation fail with the following event: $ kubectl -n ingress-nginx describe pod <unschedulable-ingress-nginx-controller-pod> ... Events: Type Reason From Message ---- ------ ---- ------- Warning FailedScheduling default-scheduler 0/3 nodes are available: 3 node(s) didn't have free ports for the requested pod ports. One way to ensure only schedulable Pods are created is to deploy the NGINX Ingress controller as a DaemonSet instead of a traditional Deployment. Info A DaemonSet schedules exactly one type of Pod per cluster node, masters included, unless a node is configured to repel those Pods . For more information, see DaemonSet . Because most properties of DaemonSet objects are identical to Deployment objects, this documentation page leaves the configuration of the corresponding manifest at the user's discretion. Like with NodePorts, this approach has a few quirks it is important to be aware of. DNS resolution Pods configured with hostNetwork: true do not use the internal DNS resolver (i.e. kube-dns or CoreDNS ), unless their dnsPolicy spec field is set to ClusterFirstWithHostNet . Consider using this setting if NGINX is expected to resolve internal names for any reason. Ingress status Because there is no Service exposing the NGINX Ingress controller in a configuration using the host network, the default --publish-service flag used in standard cloud setups does not apply and the status of all Ingress objects remains blank. $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Instead, and because bare-metal nodes usually don't have an ExternalIP, one has to enable the --report-node-internal-ip-address flag, which sets the status of all Ingress objects to the internal IP address of all nodes running the NGINX Ingress controller. Example Given a ingress-nginx-controller DaemonSet composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 the controller sets the status of all Ingress objects it manages to the following value: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.2,203.0.113.3 80 Note Alternatively, it is possible to override the address written to Ingress objects using the --publish-status-address flag. See Command line arguments . Using a self-provisioned edge \u00b6 Similarly to cloud environments, this deployment approach requires an edge network component providing a public entrypoint to the Kubernetes cluster. This edge component can be either hardware (e.g. vendor appliance) or software (e.g. HAproxy ) and is usually managed outside of the Kubernetes landscape by operations teams. Such deployment builds upon the NodePort Service described above in Over a NodePort Service , with one significant difference: external clients do not access cluster nodes directly, only the edge component does. This is particularly suitable for private Kubernetes clusters where none of the nodes has a public IP address. On the edge side, the only prerequisite is to dedicate a public IP address that forwards all HTTP traffic to Kubernetes nodes and/or masters. Incoming traffic on TCP ports 80 and 443 is forwarded to the corresponding HTTP and HTTPS NodePort on the target nodes as shown in the diagram below: External IPs \u00b6 Source IP address This method does not allow preserving the source IP of HTTP requests in any manner, it is therefore not recommended to use it despite its apparent simplicity. The externalIPs Service option was previously mentioned in the NodePort section. As per the Services page of the official Kubernetes documentation, the externalIPs option causes kube-proxy to route traffic sent to arbitrary IP addresses and on the Service ports to the endpoints of that Service. These IP addresses must belong to the target node . Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 and the following ingress-nginx NodePort Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP One could set the following external IPs in the Service spec, and NGINX would become available on both the NodePort and the Service port: spec : externalIPs : - 203.0.113.2 - 203.0.113.3 $ curl -D- http://myapp.example.com:30100 HTTP/1.1 200 OK Server: nginx/1.15.2 $ curl -D- http://myapp.example.com HTTP/1.1 200 OK Server: nginx/1.15.2 We assume the myapp.example.com subdomain above resolves to both 203.0.113.2 and 203.0.113.3 IP addresses.","title":"Bare-metal considerations"},{"location":"deploy/baremetal/#bare-metal-considerations","text":"In traditional cloud environments, where network load balancers are available on-demand, a single Kubernetes manifest suffices to provide a single point of contact to the NGINX Ingress controller to external clients and, indirectly, to any application running inside the cluster. Bare-metal environments lack this commodity, requiring a slightly different setup to offer the same kind of access to external consumers. The rest of this document describes a few recommended approaches to deploying the NGINX Ingress controller inside a Kubernetes cluster running on bare-metal.","title":"Bare-metal considerations"},{"location":"deploy/baremetal/#a-pure-software-solution-metallb","text":"MetalLB provides a network load-balancer implementation for Kubernetes clusters that do not run on a supported cloud provider, effectively allowing the usage of LoadBalancer Services within any cluster. This section demonstrates how to use the Layer 2 configuration mode of MetalLB together with the NGINX Ingress controller in a Kubernetes cluster that has publicly accessible nodes . In this mode, one node attracts all the traffic for the ingress-nginx Service IP. See Traffic policies for more details. Note The description of other supported configuration modes is off-scope for this document. Warning MetalLB is currently in beta . Read about the Project maturity and make sure you inform yourself by reading the official documentation thoroughly. MetalLB can be deployed either with a simple Kubernetes manifest or with Helm. The rest of this example assumes MetalLB was deployed following the Installation instructions. MetalLB requires a pool of IP addresses in order to be able to take ownership of the ingress-nginx Service. This pool can be defined in a ConfigMap named config located in the same namespace as the MetalLB controller. This pool of IPs must be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 After creating the following ConfigMap, MetalLB takes ownership of one of the IP addresses in the pool and updates the loadBalancer IP field of the ingress-nginx Service accordingly. apiVersion : v1 kind : ConfigMap metadata : namespace : metallb-system name : config data : config : | address-pools: - name: default protocol: layer2 addresses: - 203.0.113.10-203.0.113.15 $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 <none> 80/TCP ingress-nginx LoadBalancer 10.0.220.217 203.0.113.10 80:30100/TCP,443:30101/TCP As soon as MetalLB sets the external IP address of the ingress-nginx LoadBalancer Service, the corresponding entries are created in the iptables NAT table and the node with the selected IP address starts responding to HTTP requests on the ports configured in the LoadBalancer Service: $ curl -D- http://203.0.113.3 -H 'Host: myapp.example.com' HTTP/1.1 200 OK Server: nginx/1.15.2 Tip In order to preserve the source IP address in HTTP requests sent to NGINX, it is necessary to use the Local traffic policy. Traffic policies are described in more details in Traffic policies as well as in the next section.","title":"A pure software solution: MetalLB"},{"location":"deploy/baremetal/#over-a-nodeport-service","text":"Due to its simplicity, this is the setup a user will deploy by default when following the steps described in the installation guide . Info A Service of type NodePort exposes, via the kube-proxy component, the same unprivileged port (default: 30000-32767) on every Kubernetes node, masters included. For more information, see Services . In this configuration, the NGINX container remains isolated from the host network. As a result, it can safely bind to any port, including the standard HTTP ports 80 and 443. However, due to the container namespace isolation, a client located outside the cluster network (e.g. on the public internet) is not able to access Ingress hosts directly on ports 80 and 443. Instead, the external client must append the NodePort allocated to the ingress-nginx Service to HTTP requests. Example Given the NodePort 30100 allocated to the ingress-nginx Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 80/TCP ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP and a Kubernetes node with the public IP address 203.0.113.2 (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 a client would reach an Ingress with host: myapp.example.com at http://myapp.example.com:30100 , where the myapp.example.com subdomain resolves to the 203.0.113.2 IP address. Impact on the host system While it may sound tempting to reconfigure the NodePort range using the --service-node-port-range API server flag to include unprivileged ports and be able to expose ports 80 and 443, doing so may result in unexpected issues including (but not limited to) the use of ports otherwise reserved to system daemons and the necessity to grant kube-proxy privileges it may otherwise not require. This practice is therefore discouraged . See the other approaches proposed in this page for alternatives. This approach has a few other limitations one ought to be aware of: Source IP address Services of type NodePort perform source address translation by default. This means the source IP of a HTTP request is always the IP address of the Kubernetes node that received the request from the perspective of NGINX. The recommended way to preserve the source IP in a NodePort setup is to set the value of the externalTrafficPolicy field of the ingress-nginx Service spec to Local ( example ). Warning This setting effectively drops packets sent to Kubernetes nodes which are not running any instance of the NGINX Ingress controller. Consider assigning NGINX Pods to specific nodes in order to control on what nodes the NGINX Ingress controller should be scheduled or not scheduled. Example In a Kubernetes cluster composed of 3 nodes (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 with a ingress-nginx-controller Deployment composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-cf9ff8c96-8vvf8 1/1 Running 172.17.0.3 host-3 ingress-nginx-controller-cf9ff8c96-pxsds 1/1 Running 172.17.1.4 host-2 Requests sent to host-2 and host-3 would be forwarded to NGINX and original client's IP would be preserved, while requests to host-1 would get dropped because there is no NGINX replica running on that node. Ingress status Because NodePort Services do not get a LoadBalancerIP assigned by definition, the NGINX Ingress controller does not update the status of Ingress objects it manages . $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Despite the fact there is no load balancer providing a public IP address to the NGINX Ingress controller, it is possible to force the status update of all managed Ingress objects by setting the externalIPs field of the ingress-nginx Service. Warning There is more to setting externalIPs than just enabling the NGINX Ingress controller to update the status of Ingress objects. Please read about this option in the Services page of official Kubernetes documentation as well as the section about External IPs in this document for more information. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 one could edit the ingress-nginx Service and add the following field to the object spec spec : externalIPs : - 203.0.113.1 - 203.0.113.2 - 203.0.113.3 which would in turn be reflected on Ingress objects as follows: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.1,203.0.113.2,203.0.113.3 80 Redirects As NGINX is not aware of the port translation operated by the NodePort Service , backend applications are responsible for generating redirect URLs that take into account the URL used by external clients, including the NodePort. Example Redirects generated by NGINX, for instance HTTP to HTTPS or domain to www.domain , are generated without NodePort: $ curl -D- http://myapp.example.com:30100 ` HTTP/1.1 308 Permanent Redirect Server: nginx/1.15.2 Location: https://myapp.example.com/ #-> missing NodePort in HTTPS redirect","title":"Over a NodePort Service"},{"location":"deploy/baremetal/#via-the-host-network","text":"In a setup where there is no external load balancer available but using NodePorts is not an option, one can configure ingress-nginx Pods to use the network of the host they run on instead of a dedicated network namespace. The benefit of this approach is that the NGINX Ingress controller can bind ports 80 and 443 directly to Kubernetes nodes' network interfaces, without the extra network translation imposed by NodePort Services. Note This approach does not leverage any Service object to expose the NGINX Ingress controller. If the ingress-nginx Service exists in the target cluster, it is recommended to delete it . This can be achieved by enabling the hostNetwork option in the Pods' spec. template : spec : hostNetwork : true Security considerations Enabling this option exposes every system daemon to the NGINX Ingress controller on any network interface, including the host's loopback. Please evaluate the impact this may have on the security of your system carefully. Example Consider this ingress-nginx-controller Deployment composed of 2 replicas, NGINX Pods inherit from the IP address of their host instead of an internal Pod IP. $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 One major limitation of this deployment approach is that only a single NGINX Ingress controller Pod may be scheduled on each cluster node, because binding the same port multiple times on the same network interface is technically impossible. Pods that are unschedulable due to such situation fail with the following event: $ kubectl -n ingress-nginx describe pod <unschedulable-ingress-nginx-controller-pod> ... Events: Type Reason From Message ---- ------ ---- ------- Warning FailedScheduling default-scheduler 0/3 nodes are available: 3 node(s) didn't have free ports for the requested pod ports. One way to ensure only schedulable Pods are created is to deploy the NGINX Ingress controller as a DaemonSet instead of a traditional Deployment. Info A DaemonSet schedules exactly one type of Pod per cluster node, masters included, unless a node is configured to repel those Pods . For more information, see DaemonSet . Because most properties of DaemonSet objects are identical to Deployment objects, this documentation page leaves the configuration of the corresponding manifest at the user's discretion. Like with NodePorts, this approach has a few quirks it is important to be aware of. DNS resolution Pods configured with hostNetwork: true do not use the internal DNS resolver (i.e. kube-dns or CoreDNS ), unless their dnsPolicy spec field is set to ClusterFirstWithHostNet . Consider using this setting if NGINX is expected to resolve internal names for any reason. Ingress status Because there is no Service exposing the NGINX Ingress controller in a configuration using the host network, the default --publish-service flag used in standard cloud setups does not apply and the status of all Ingress objects remains blank. $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Instead, and because bare-metal nodes usually don't have an ExternalIP, one has to enable the --report-node-internal-ip-address flag, which sets the status of all Ingress objects to the internal IP address of all nodes running the NGINX Ingress controller. Example Given a ingress-nginx-controller DaemonSet composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 the controller sets the status of all Ingress objects it manages to the following value: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.2,203.0.113.3 80 Note Alternatively, it is possible to override the address written to Ingress objects using the --publish-status-address flag. See Command line arguments .","title":"Via the host network"},{"location":"deploy/baremetal/#using-a-self-provisioned-edge","text":"Similarly to cloud environments, this deployment approach requires an edge network component providing a public entrypoint to the Kubernetes cluster. This edge component can be either hardware (e.g. vendor appliance) or software (e.g. HAproxy ) and is usually managed outside of the Kubernetes landscape by operations teams. Such deployment builds upon the NodePort Service described above in Over a NodePort Service , with one significant difference: external clients do not access cluster nodes directly, only the edge component does. This is particularly suitable for private Kubernetes clusters where none of the nodes has a public IP address. On the edge side, the only prerequisite is to dedicate a public IP address that forwards all HTTP traffic to Kubernetes nodes and/or masters. Incoming traffic on TCP ports 80 and 443 is forwarded to the corresponding HTTP and HTTPS NodePort on the target nodes as shown in the diagram below:","title":"Using a self-provisioned edge"},{"location":"deploy/baremetal/#external-ips","text":"Source IP address This method does not allow preserving the source IP of HTTP requests in any manner, it is therefore not recommended to use it despite its apparent simplicity. The externalIPs Service option was previously mentioned in the NodePort section. As per the Services page of the official Kubernetes documentation, the externalIPs option causes kube-proxy to route traffic sent to arbitrary IP addresses and on the Service ports to the endpoints of that Service. These IP addresses must belong to the target node . Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 and the following ingress-nginx NodePort Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP One could set the following external IPs in the Service spec, and NGINX would become available on both the NodePort and the Service port: spec : externalIPs : - 203.0.113.2 - 203.0.113.3 $ curl -D- http://myapp.example.com:30100 HTTP/1.1 200 OK Server: nginx/1.15.2 $ curl -D- http://myapp.example.com HTTP/1.1 200 OK Server: nginx/1.15.2 We assume the myapp.example.com subdomain above resolves to both 203.0.113.2 and 203.0.113.3 IP addresses.","title":"External IPs"},{"location":"deploy/hardening-guide/","text":"Hardening Guide \u00b6 Overview \u00b6 There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are overlapping in some points: nginx CIS Benchmark cipherlist.eu (one of many forks of the now dead project cipherli.st) This guide describes, what of the different configurations described in those guides is already implemented as default in the nginx implementation of kubernetes ingress, what needs to be configured, what is obsolete due to the fact that the nginx is running as container (the CIS benchmark relates to a non-containerized installation) and what is difficult or not possible. Be aware that this is only a guide and you are responsible for your own implementation. Some of the configurations may lead to have specific clients unable to reach your site or similar consequences. This guide refers to chapters in the CIS Benchmark. For full explanation you should refer to the benchmark document itself Configuration Guide \u00b6 Chapter in CIS benchmark Status Default Action to do if not default 1 Initial Setup 1.1 Installation 1.1.1 Ensure NGINX is installed (Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.1.2 Ensure NGINX is installed from source (Not Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.2 Configure Software Updates 1.2.1 Ensure package manager repositories are properly configured (Not Scored) OK done via helm, nginx version could be overwritten, however compability is not ensured then 1.2.2 Ensure the latest software package is installed (Not Scored) ACTION NEEDED done via helm, nginx version could be overwritten, however compability is not ensured then Plan for periodic updates 2 Basic Configuration 2.1 Minimize NGINX Modules 2.1.1 Ensure only required modules are installed (Not Scored) OK Already only needed modules are installed, however proposals for further reduction are welcome 2.1.2 Ensure HTTP WebDAV module is not installed (Scored) RISK TO BE ACCEPTED It is installed, see compile options here . Disabling that would require building own image for nginx ingress controller. The effort is too high in comparison to the achieved effect 2.1.3 Ensure modules with gzip functionality are disabled (Scored) RISK TO BE ACCEPTED See previous answer 2.1.4 Ensure the autoindex module is disabled (Scored) OK No autoindex configs so far in ingress defaults 2.2 Account Security 2.2.1 Ensure that NGINX is run using a non-privileged, dedicated service account (Not Scored) OK Pod configured as user www-data: See this line in helm chart values . Compiled with user www-data: See this line in build script 2.2.2 Ensure the NGINX service account is locked (Scored) OK Docker design ensures this 2.2.3 Ensure the NGINX service account has an invalid shell (Scored) OK Shell is nologin: see this line in build script 2.3 Permissions and Ownership 2.3.1 Ensure NGINX directories and files are owned by root (Scored) OK Obsolete through docker-design and ingress controller needs to update the configs dynamically 2.3.2 Ensure access to NGINX directories and files is restricted (Scored) OK See previous answer 2.3.3 Ensure the NGINX process ID (PID) file is secured (Scored) OK No PID-File due to docker design 2.3.4 Ensure the core dump directory is secured (Not Scored) OK No working_directory configured by default 2.4 Network Configuration 2.4.1 Ensure NGINX only listens for network connections on authorized ports (Not Scored) OK Ensured by automatic nginx.conf configuration 2.4.2 Ensure requests for unknown host names are rejected (Not Scored) OK They are not rejected but send to the \"default backend\" delivering approriate errors (mostly 404) 2.4.3 Ensure keepalive_timeout is 10 seconds or less, but not 0 (Scored) ACTION NEEDED Default is 75s configure keep-alive to 10 seconds according to this documentation 2.4.4 Ensure send_timeout is set to 10 seconds or less, but not 0 (Scored) RISK TO BE ACCEPTED Not configured, however the nginx default is 60s Not configurable 2.5 Information Disclosure 2.5.1 Ensure server_tokens directive is set to off (Scored) OK server_tokens is configured to off by defaukt 2.5.2 Ensure default error and index.html pages do not reference NGINX (Scored) ACTION NEEDED 404 shows no version at all, 503 and 403 show \"nginx\", which is hardcoded see this line in nginx source code configure custom error pages at least for 403, 404 and 503 and 500 2.5.3 Ensure hidden file serving is disabled (Not Scored) ACTION NEEDED config not set configure a config.server-snippet Snippet, but beware of .well-known challenges or similar. Refer to the benchmark here please 2.5.4 Ensure the NGINX reverse proxy does not enable information disclosure (Scored) ACTION NEEDED hide not configured configure hide-headers with array of \"X-Powered-By\" and \"Server\": according to this documentation 3 Logging 3.1 Ensure detailed logging is enabled (Not Scored) OK Ningx ingress has a very detailled log format by default 3.2 Ensure access logging is enabled (Scored) OK Access log is enabled by default 3.3 Ensure error logging is enabled and set to the info logging level (Scored) OK Error log is configured by default. The log level does not matter, because it is all sent to STDOUT anyway 3.4 Ensure log files are rotated (Scored) OBSOLETE Log file handling is not part of the nginx ingress and should be handled separatly 3.5 Ensure error logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.6 Ensure access logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.7 Ensure proxies pass source IP information (Scored) OK Headers are set by default 4 Encryption 4.1 TLS / SSL Configuration 4.1.1 Ensure HTTP is redirected to HTTPS (Scored) OK Redirect to TLS is default 4.1.2 Ensure a trusted certificate and trust chain is installed (Not Scored) ACTION NEEDED For installing certs there are enough manuals in the web. A good way is to use lets encrypt through cert-manager Install proper certificates or use lets encrypt with cert-manager 4.1.3 Ensure private key permissions are restricted (Scored) ACTION NEEDED See previous answer 4.1.4 Ensure only modern TLS protocols are used (Scored) OK/ACTION NEEDED Default is TLS 1.2 + 1.3, while this is okay for CIS Benchmark, cipherlist.eu only recommends 1.3. This may cut off old OS's Set controller.config.ssl-protocols to \"TLSv1.3\" 4.1.5 Disable weak ciphers (Scored) ACTION NEEDED Default ciphers are already good, but cipherlist.eu recommends even stronger ciphers Set controller.config.ssl-ciphers to \"EECDH+AESGCM:EDH+AESGCM\" 4.1.6 Ensure custom Diffie-Hellman parameters are used (Scored) ACTION NEEDED No custom DH parameters are generated Generate dh parameters for each ingress deployment you use - see here for a how to 4.1.7 Ensure Online Certificate Status Protocol (OCSP) stapling is enabled (Scored) ACTION NEEDED Not enabled set via this configuration parameter 4.1.8 Ensure HTTP Strict Transport Security (HSTS) is enabled (Scored) OK HSTS is enabled by default 4.1.9 Ensure HTTP Public Key Pinning is enabled (Not Scored) ACTION NEEDED / RISK TO BE ACCEPTED HKPK not enabled by default If lets encrypt is not used, set correct HPKP header. There are several ways to implement this - with the helm charts it works via controller.add-headers. If lets encrypt is used, this is complicated, a solution here is yet unknown 4.1.10 Ensure upstream server traffic is authenticated with a client certificate (Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, manual is here 4.1.11 Ensure the upstream traffic server certificate is trusted (Not Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, see configuration here 4.1.12 Ensure your domain is preloaded (Not Scored) ACTION NEEDED Preload is not active by default Set controller.config.hsts-preload to true 4.1.13 Ensure session resumption is disabled to enable perfect forward security (Scored) ACTION NEEDED Session tickets are enabled by default Set controller.config.ssl-session-tickets to false 4.1.14 Ensure HTTP/2.0 is used (Not Scored) OK http2 is set by default 5 Request Filtering and Restrictions 5.1 Access Control 5.1.1 Ensure allow and deny filters limit access to specific IP addresses (Not Scored) OK/ACTION NEEDED Depends on use case, geo ip module is compiled into nginx ingress controller, there are several ways to use it If needed set IP restrictions via annotations or work with config snippets (be careful with lets-encrypt-http-challenge!) 5.1.2 Ensure only whitelisted HTTP methods are allowed (Not Scored) OK/ACTION NEEDED Depends on use case If required it can be set via config snippet 5.2 Request Limits 5.2.1 Ensure timeout values for reading the client header and body are set correctly (Scored) ACTION NEEDED Default timeout is 60s Set via this configuration parameter and respective body aequivalent 5.2.2 Ensure the maximum request body size is set correctly (Scored) ACTION NEEDED Default is 1m set via this configuration parameter 5.2.3 Ensure the maximum buffer size for URIs is defined (Scored) ACTION NEEDED Default is 4 8k Set via this configuration parameter 5.2.4 Ensure the number of connections per IP address is limited (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.2.5 Ensure rate limits by IP address are set (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.3 Browser Security 5.3.1 Ensure X-Frame-Options header is configured and enabled (Scored) ACTION NEEDED Header not set by default Several ways to implement this - with the helm charts it works via controller.add-headers 5.3.2 Ensure X-Content-Type-Options header is configured and enabled (Scored) ACTION NEEDED See previous answer See previous answer 5.3.3 Ensure the X-XSS-Protection Header is enabled and configured properly (Scored) ACTION NEEDED See previous answer See previous answer 5.3.4 Ensure that Content Security Policy (CSP) is enabled and configured properly (Not Scored) ACTION NEEDED See previous answer See previous answer 5.3.5 Ensure the Referrer Policy is enabled and configured properly (Not Scored) ACTION NEEDED Depends on application. It should be handled in the applications webserver itself, not in the load balancing ingress check backend webserver 6 Mandatory Access Control n/a too high level, depends on backends","title":"Hardening guide"},{"location":"deploy/hardening-guide/#hardening-guide","text":"","title":"Hardening Guide"},{"location":"deploy/hardening-guide/#overview","text":"There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are overlapping in some points: nginx CIS Benchmark cipherlist.eu (one of many forks of the now dead project cipherli.st) This guide describes, what of the different configurations described in those guides is already implemented as default in the nginx implementation of kubernetes ingress, what needs to be configured, what is obsolete due to the fact that the nginx is running as container (the CIS benchmark relates to a non-containerized installation) and what is difficult or not possible. Be aware that this is only a guide and you are responsible for your own implementation. Some of the configurations may lead to have specific clients unable to reach your site or similar consequences. This guide refers to chapters in the CIS Benchmark. For full explanation you should refer to the benchmark document itself","title":"Overview"},{"location":"deploy/hardening-guide/#configuration-guide","text":"Chapter in CIS benchmark Status Default Action to do if not default 1 Initial Setup 1.1 Installation 1.1.1 Ensure NGINX is installed (Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.1.2 Ensure NGINX is installed from source (Not Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.2 Configure Software Updates 1.2.1 Ensure package manager repositories are properly configured (Not Scored) OK done via helm, nginx version could be overwritten, however compability is not ensured then 1.2.2 Ensure the latest software package is installed (Not Scored) ACTION NEEDED done via helm, nginx version could be overwritten, however compability is not ensured then Plan for periodic updates 2 Basic Configuration 2.1 Minimize NGINX Modules 2.1.1 Ensure only required modules are installed (Not Scored) OK Already only needed modules are installed, however proposals for further reduction are welcome 2.1.2 Ensure HTTP WebDAV module is not installed (Scored) RISK TO BE ACCEPTED It is installed, see compile options here . Disabling that would require building own image for nginx ingress controller. The effort is too high in comparison to the achieved effect 2.1.3 Ensure modules with gzip functionality are disabled (Scored) RISK TO BE ACCEPTED See previous answer 2.1.4 Ensure the autoindex module is disabled (Scored) OK No autoindex configs so far in ingress defaults 2.2 Account Security 2.2.1 Ensure that NGINX is run using a non-privileged, dedicated service account (Not Scored) OK Pod configured as user www-data: See this line in helm chart values . Compiled with user www-data: See this line in build script 2.2.2 Ensure the NGINX service account is locked (Scored) OK Docker design ensures this 2.2.3 Ensure the NGINX service account has an invalid shell (Scored) OK Shell is nologin: see this line in build script 2.3 Permissions and Ownership 2.3.1 Ensure NGINX directories and files are owned by root (Scored) OK Obsolete through docker-design and ingress controller needs to update the configs dynamically 2.3.2 Ensure access to NGINX directories and files is restricted (Scored) OK See previous answer 2.3.3 Ensure the NGINX process ID (PID) file is secured (Scored) OK No PID-File due to docker design 2.3.4 Ensure the core dump directory is secured (Not Scored) OK No working_directory configured by default 2.4 Network Configuration 2.4.1 Ensure NGINX only listens for network connections on authorized ports (Not Scored) OK Ensured by automatic nginx.conf configuration 2.4.2 Ensure requests for unknown host names are rejected (Not Scored) OK They are not rejected but send to the \"default backend\" delivering approriate errors (mostly 404) 2.4.3 Ensure keepalive_timeout is 10 seconds or less, but not 0 (Scored) ACTION NEEDED Default is 75s configure keep-alive to 10 seconds according to this documentation 2.4.4 Ensure send_timeout is set to 10 seconds or less, but not 0 (Scored) RISK TO BE ACCEPTED Not configured, however the nginx default is 60s Not configurable 2.5 Information Disclosure 2.5.1 Ensure server_tokens directive is set to off (Scored) OK server_tokens is configured to off by defaukt 2.5.2 Ensure default error and index.html pages do not reference NGINX (Scored) ACTION NEEDED 404 shows no version at all, 503 and 403 show \"nginx\", which is hardcoded see this line in nginx source code configure custom error pages at least for 403, 404 and 503 and 500 2.5.3 Ensure hidden file serving is disabled (Not Scored) ACTION NEEDED config not set configure a config.server-snippet Snippet, but beware of .well-known challenges or similar. Refer to the benchmark here please 2.5.4 Ensure the NGINX reverse proxy does not enable information disclosure (Scored) ACTION NEEDED hide not configured configure hide-headers with array of \"X-Powered-By\" and \"Server\": according to this documentation 3 Logging 3.1 Ensure detailed logging is enabled (Not Scored) OK Ningx ingress has a very detailled log format by default 3.2 Ensure access logging is enabled (Scored) OK Access log is enabled by default 3.3 Ensure error logging is enabled and set to the info logging level (Scored) OK Error log is configured by default. The log level does not matter, because it is all sent to STDOUT anyway 3.4 Ensure log files are rotated (Scored) OBSOLETE Log file handling is not part of the nginx ingress and should be handled separatly 3.5 Ensure error logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.6 Ensure access logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.7 Ensure proxies pass source IP information (Scored) OK Headers are set by default 4 Encryption 4.1 TLS / SSL Configuration 4.1.1 Ensure HTTP is redirected to HTTPS (Scored) OK Redirect to TLS is default 4.1.2 Ensure a trusted certificate and trust chain is installed (Not Scored) ACTION NEEDED For installing certs there are enough manuals in the web. A good way is to use lets encrypt through cert-manager Install proper certificates or use lets encrypt with cert-manager 4.1.3 Ensure private key permissions are restricted (Scored) ACTION NEEDED See previous answer 4.1.4 Ensure only modern TLS protocols are used (Scored) OK/ACTION NEEDED Default is TLS 1.2 + 1.3, while this is okay for CIS Benchmark, cipherlist.eu only recommends 1.3. This may cut off old OS's Set controller.config.ssl-protocols to \"TLSv1.3\" 4.1.5 Disable weak ciphers (Scored) ACTION NEEDED Default ciphers are already good, but cipherlist.eu recommends even stronger ciphers Set controller.config.ssl-ciphers to \"EECDH+AESGCM:EDH+AESGCM\" 4.1.6 Ensure custom Diffie-Hellman parameters are used (Scored) ACTION NEEDED No custom DH parameters are generated Generate dh parameters for each ingress deployment you use - see here for a how to 4.1.7 Ensure Online Certificate Status Protocol (OCSP) stapling is enabled (Scored) ACTION NEEDED Not enabled set via this configuration parameter 4.1.8 Ensure HTTP Strict Transport Security (HSTS) is enabled (Scored) OK HSTS is enabled by default 4.1.9 Ensure HTTP Public Key Pinning is enabled (Not Scored) ACTION NEEDED / RISK TO BE ACCEPTED HKPK not enabled by default If lets encrypt is not used, set correct HPKP header. There are several ways to implement this - with the helm charts it works via controller.add-headers. If lets encrypt is used, this is complicated, a solution here is yet unknown 4.1.10 Ensure upstream server traffic is authenticated with a client certificate (Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, manual is here 4.1.11 Ensure the upstream traffic server certificate is trusted (Not Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, see configuration here 4.1.12 Ensure your domain is preloaded (Not Scored) ACTION NEEDED Preload is not active by default Set controller.config.hsts-preload to true 4.1.13 Ensure session resumption is disabled to enable perfect forward security (Scored) ACTION NEEDED Session tickets are enabled by default Set controller.config.ssl-session-tickets to false 4.1.14 Ensure HTTP/2.0 is used (Not Scored) OK http2 is set by default 5 Request Filtering and Restrictions 5.1 Access Control 5.1.1 Ensure allow and deny filters limit access to specific IP addresses (Not Scored) OK/ACTION NEEDED Depends on use case, geo ip module is compiled into nginx ingress controller, there are several ways to use it If needed set IP restrictions via annotations or work with config snippets (be careful with lets-encrypt-http-challenge!) 5.1.2 Ensure only whitelisted HTTP methods are allowed (Not Scored) OK/ACTION NEEDED Depends on use case If required it can be set via config snippet 5.2 Request Limits 5.2.1 Ensure timeout values for reading the client header and body are set correctly (Scored) ACTION NEEDED Default timeout is 60s Set via this configuration parameter and respective body aequivalent 5.2.2 Ensure the maximum request body size is set correctly (Scored) ACTION NEEDED Default is 1m set via this configuration parameter 5.2.3 Ensure the maximum buffer size for URIs is defined (Scored) ACTION NEEDED Default is 4 8k Set via this configuration parameter 5.2.4 Ensure the number of connections per IP address is limited (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.2.5 Ensure rate limits by IP address are set (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.3 Browser Security 5.3.1 Ensure X-Frame-Options header is configured and enabled (Scored) ACTION NEEDED Header not set by default Several ways to implement this - with the helm charts it works via controller.add-headers 5.3.2 Ensure X-Content-Type-Options header is configured and enabled (Scored) ACTION NEEDED See previous answer See previous answer 5.3.3 Ensure the X-XSS-Protection Header is enabled and configured properly (Scored) ACTION NEEDED See previous answer See previous answer 5.3.4 Ensure that Content Security Policy (CSP) is enabled and configured properly (Not Scored) ACTION NEEDED See previous answer See previous answer 5.3.5 Ensure the Referrer Policy is enabled and configured properly (Not Scored) ACTION NEEDED Depends on application. It should be handled in the applications webserver itself, not in the load balancing ingress check backend webserver 6 Mandatory Access Control n/a too high level, depends on backends","title":"Configuration Guide"},{"location":"deploy/rbac/","text":"Role Based Access Control (RBAC) \u00b6 Overview \u00b6 This example applies to nginx-ingress-controllers being deployed in an environment with RBAC enabled. Role Based Access Control is comprised of four layers: ClusterRole - permissions assigned to a role that apply to an entire cluster ClusterRoleBinding - binding a ClusterRole to a specific account Role - permissions assigned to a role that apply to a specific namespace RoleBinding - binding a Role to a specific account In order for RBAC to be applied to an nginx-ingress-controller, that controller should be assigned to a ServiceAccount . That ServiceAccount should be bound to the Role s and ClusterRole s defined for the nginx-ingress-controller. Service Accounts created in this example \u00b6 One ServiceAccount is created in this example, nginx-ingress-serviceaccount . Permissions Granted in this example \u00b6 There are two sets of permissions defined in this example. Cluster-wide permissions defined by the ClusterRole named nginx-ingress-clusterrole , and namespace specific permissions defined by the Role named nginx-ingress-role . Cluster Permissions \u00b6 These permissions are granted in order for the nginx-ingress-controller to be able to function as an ingress across the cluster. These permissions are granted to the ClusterRole named nginx-ingress-clusterrole configmaps , endpoints , nodes , pods , secrets : list, watch nodes : get services , ingresses : get, list, watch events : create, patch ingresses/status : update Namespace Permissions \u00b6 These permissions are granted specific to the nginx-ingress namespace. These permissions are granted to the Role named nginx-ingress-role configmaps , pods , secrets : get endpoints : get Furthermore to support leader-election, the nginx-ingress-controller needs to have access to a configmap using the resourceName ingress-controller-leader-nginx Note that resourceNames can NOT be used to limit requests using the \u201ccreate\u201d verb because authorizers only have access to information that can be obtained from the request URL, method, and headers (resource names in a \u201ccreate\u201d request are part of the request body). configmaps : get, update (for resourceName ingress-controller-leader-nginx ) configmaps : create This resourceName is the concatenation of the election-id and the ingress-class as defined by the ingress-controller, which defaults to: election-id : ingress-controller-leader ingress-class : nginx resourceName : <election-id>-<ingress-class> Please adapt accordingly if you overwrite either parameter when launching the nginx-ingress-controller. Bindings \u00b6 The ServiceAccount nginx-ingress-serviceaccount is bound to the Role nginx-ingress-role and the ClusterRole nginx-ingress-clusterrole . The serviceAccountName associated with the containers in the deployment must match the serviceAccount. The namespace references in the Deployment metadata, container arguments, and POD_NAMESPACE should be in the nginx-ingress namespace.","title":"Role Based Access Control (RBAC)"},{"location":"deploy/rbac/#role-based-access-control-rbac","text":"","title":"Role Based Access Control (RBAC)"},{"location":"deploy/rbac/#overview","text":"This example applies to nginx-ingress-controllers being deployed in an environment with RBAC enabled. Role Based Access Control is comprised of four layers: ClusterRole - permissions assigned to a role that apply to an entire cluster ClusterRoleBinding - binding a ClusterRole to a specific account Role - permissions assigned to a role that apply to a specific namespace RoleBinding - binding a Role to a specific account In order for RBAC to be applied to an nginx-ingress-controller, that controller should be assigned to a ServiceAccount . That ServiceAccount should be bound to the Role s and ClusterRole s defined for the nginx-ingress-controller.","title":"Overview"},{"location":"deploy/rbac/#service-accounts-created-in-this-example","text":"One ServiceAccount is created in this example, nginx-ingress-serviceaccount .","title":"Service Accounts created in this example"},{"location":"deploy/rbac/#permissions-granted-in-this-example","text":"There are two sets of permissions defined in this example. Cluster-wide permissions defined by the ClusterRole named nginx-ingress-clusterrole , and namespace specific permissions defined by the Role named nginx-ingress-role .","title":"Permissions Granted in this example"},{"location":"deploy/rbac/#cluster-permissions","text":"These permissions are granted in order for the nginx-ingress-controller to be able to function as an ingress across the cluster. These permissions are granted to the ClusterRole named nginx-ingress-clusterrole configmaps , endpoints , nodes , pods , secrets : list, watch nodes : get services , ingresses : get, list, watch events : create, patch ingresses/status : update","title":"Cluster Permissions"},{"location":"deploy/rbac/#namespace-permissions","text":"These permissions are granted specific to the nginx-ingress namespace. These permissions are granted to the Role named nginx-ingress-role configmaps , pods , secrets : get endpoints : get Furthermore to support leader-election, the nginx-ingress-controller needs to have access to a configmap using the resourceName ingress-controller-leader-nginx Note that resourceNames can NOT be used to limit requests using the \u201ccreate\u201d verb because authorizers only have access to information that can be obtained from the request URL, method, and headers (resource names in a \u201ccreate\u201d request are part of the request body). configmaps : get, update (for resourceName ingress-controller-leader-nginx ) configmaps : create This resourceName is the concatenation of the election-id and the ingress-class as defined by the ingress-controller, which defaults to: election-id : ingress-controller-leader ingress-class : nginx resourceName : <election-id>-<ingress-class> Please adapt accordingly if you overwrite either parameter when launching the nginx-ingress-controller.","title":"Namespace Permissions"},{"location":"deploy/rbac/#bindings","text":"The ServiceAccount nginx-ingress-serviceaccount is bound to the Role nginx-ingress-role and the ClusterRole nginx-ingress-clusterrole . The serviceAccountName associated with the containers in the deployment must match the serviceAccount. The namespace references in the Deployment metadata, container arguments, and POD_NAMESPACE should be in the nginx-ingress namespace.","title":"Bindings"},{"location":"deploy/upgrade/","text":"Upgrading \u00b6 Important No matter the method you use for upgrading, if you use template overrides, make sure your templates are compatible with the new version of ingress-nginx . Without Helm \u00b6 To upgrade your ingress-nginx installation, it should be enough to change the version of the image in the controller Deployment. I.e. if your deployment resource looks like (partial example): kind : Deployment metadata : name : nginx-ingress-controller namespace : ingress-nginx spec : replicas : 1 selector : ... template : metadata : ... spec : containers : - name : nginx-ingress-controller image : k8s.gcr.io/ingress-nginx/controller:v0.34.0@sha256:56633bd00dab33d92ba14c6e709126a762d54a75a6e72437adefeaaca0abb069 args : ... simply change the 0.34.0 tag to the version you wish to upgrade to. The easiest way to do this is e.g. (do note you may need to change the name parameter according to your installation): kubectl set image deployment/nginx-ingress-controller \\ nginx-ingress-controller=k8s.gcr.io/ingress-nginx/controller:v0.34.1@sha256:0e072dddd1f7f8fc8909a2ca6f65e76c5f0d2fcfb8be47935ae3457e8bbceb20 \\ -n ingress-nginx For interactive editing, use kubectl edit deployment nginx-ingress-controller -n ingress-nginx . With Helm \u00b6 If you installed ingress-nginx using the Helm command in the deployment docs so its name is ngx-ingress , you should be able to upgrade using helm upgrade --reuse-values ngx-ingress ingress-nginx/ingress-nginx Migrating from stable/nginx-ingress \u00b6 See detailed steps in the upgrading section of the ingress-nginx chart README .","title":"Upgrade"},{"location":"deploy/upgrade/#upgrading","text":"Important No matter the method you use for upgrading, if you use template overrides, make sure your templates are compatible with the new version of ingress-nginx .","title":"Upgrading"},{"location":"deploy/upgrade/#without-helm","text":"To upgrade your ingress-nginx installation, it should be enough to change the version of the image in the controller Deployment. I.e. if your deployment resource looks like (partial example): kind : Deployment metadata : name : nginx-ingress-controller namespace : ingress-nginx spec : replicas : 1 selector : ... template : metadata : ... spec : containers : - name : nginx-ingress-controller image : k8s.gcr.io/ingress-nginx/controller:v0.34.0@sha256:56633bd00dab33d92ba14c6e709126a762d54a75a6e72437adefeaaca0abb069 args : ... simply change the 0.34.0 tag to the version you wish to upgrade to. The easiest way to do this is e.g. (do note you may need to change the name parameter according to your installation): kubectl set image deployment/nginx-ingress-controller \\ nginx-ingress-controller=k8s.gcr.io/ingress-nginx/controller:v0.34.1@sha256:0e072dddd1f7f8fc8909a2ca6f65e76c5f0d2fcfb8be47935ae3457e8bbceb20 \\ -n ingress-nginx For interactive editing, use kubectl edit deployment nginx-ingress-controller -n ingress-nginx .","title":"Without Helm"},{"location":"deploy/upgrade/#with-helm","text":"If you installed ingress-nginx using the Helm command in the deployment docs so its name is ngx-ingress , you should be able to upgrade using helm upgrade --reuse-values ngx-ingress ingress-nginx/ingress-nginx","title":"With Helm"},{"location":"deploy/upgrade/#migrating-from-stablenginx-ingress","text":"See detailed steps in the upgrading section of the ingress-nginx chart README .","title":"Migrating from stable/nginx-ingress"},{"location":"enhancements/","text":"Kubernetes Enhancement Proposals (KEPs) \u00b6 A Kubernetes Enhancement Proposal (KEP) is a way to propose, communicate and coordinate on new efforts for the Kubernetes project. For this reason, the ingress-nginx project is adopting it. Quick start for the KEP process \u00b6 Follow the process outlined in the KEP template Do I have to use the KEP process? \u00b6 No... but we hope that you will. Over time having a rich set of KEPs in one place will make it easier for people to track what is going on in the community and find a structured historic record. KEPs are only required when the changes are wide ranging and impact most of the project. Why would I want to use the KEP process? \u00b6 Our aim with KEPs is to clearly communicate new efforts to the Kubernetes contributor community. As such, we want to build a well curated set of clear proposals in a common format with useful metadata. Benefits to KEP users (in the limit): Exposure on a kubernetes blessed web site that is findable via web search engines. Cross indexing of KEPs so that users can find connections and the current status of any KEP. A clear process with approvers and reviewers for making decisions. This will lead to more structured decisions that stick as there is a discoverable record around the decisions. We are inspired by IETF RFCs, Python PEPs, and Rust RFCs.","title":"Kubernetes Enhancement Proposals (KEPs)"},{"location":"enhancements/#kubernetes-enhancement-proposals-keps","text":"A Kubernetes Enhancement Proposal (KEP) is a way to propose, communicate and coordinate on new efforts for the Kubernetes project. For this reason, the ingress-nginx project is adopting it.","title":"Kubernetes Enhancement Proposals (KEPs)"},{"location":"enhancements/#quick-start-for-the-kep-process","text":"Follow the process outlined in the KEP template","title":"Quick start for the KEP process"},{"location":"enhancements/#do-i-have-to-use-the-kep-process","text":"No... but we hope that you will. Over time having a rich set of KEPs in one place will make it easier for people to track what is going on in the community and find a structured historic record. KEPs are only required when the changes are wide ranging and impact most of the project.","title":"Do I have to use the KEP process?"},{"location":"enhancements/#why-would-i-want-to-use-the-kep-process","text":"Our aim with KEPs is to clearly communicate new efforts to the Kubernetes contributor community. As such, we want to build a well curated set of clear proposals in a common format with useful metadata. Benefits to KEP users (in the limit): Exposure on a kubernetes blessed web site that is findable via web search engines. Cross indexing of KEPs so that users can find connections and the current status of any KEP. A clear process with approvers and reviewers for making decisions. This will lead to more structured decisions that stick as there is a discoverable record around the decisions. We are inspired by IETF RFCs, Python PEPs, and Rust RFCs.","title":"Why would I want to use the KEP process?"},{"location":"enhancements/20190724-only-dynamic-ssl/","text":"Remove static SSL configuration mode \u00b6 Table of Contents \u00b6 Summary Motivation Goals Non-Goals Proposal Implementation Details/Notes/Constraints Drawbacks Alternatives Summary \u00b6 Since release 0.19.0 is possible to configure SSL certificates without the need of NGINX reloads (thanks to lua) and after release 0.24.0 the default enabled mode is dynamic. Motivation \u00b6 The static configuration implies reloads, something that affects the majority of the users. Goals \u00b6 Deprecation of the flag --enable-dynamic-certificates . Cleanup of the codebase. Non-Goals \u00b6 Features related to certificate authentication are not changed in any way. Proposal \u00b6 Remove static SSL configuration Implementation Details/Notes/Constraints \u00b6 Deprecate the flag Move the directives ssl_certificate and ssl_certificate_key from each server block to the http section. These settings are required to avoid NGINX errors in the logs. Remove any action of the flag --enable-dynamic-certificates Drawbacks \u00b6 Alternatives \u00b6 Keep both implementations","title":"Remove static SSL configuration mode"},{"location":"enhancements/20190724-only-dynamic-ssl/#remove-static-ssl-configuration-mode","text":"","title":"Remove static SSL configuration mode"},{"location":"enhancements/20190724-only-dynamic-ssl/#table-of-contents","text":"Summary Motivation Goals Non-Goals Proposal Implementation Details/Notes/Constraints Drawbacks Alternatives","title":"Table of Contents"},{"location":"enhancements/20190724-only-dynamic-ssl/#summary","text":"Since release 0.19.0 is possible to configure SSL certificates without the need of NGINX reloads (thanks to lua) and after release 0.24.0 the default enabled mode is dynamic.","title":"Summary"},{"location":"enhancements/20190724-only-dynamic-ssl/#motivation","text":"The static configuration implies reloads, something that affects the majority of the users.","title":"Motivation"},{"location":"enhancements/20190724-only-dynamic-ssl/#goals","text":"Deprecation of the flag --enable-dynamic-certificates . Cleanup of the codebase.","title":"Goals"},{"location":"enhancements/20190724-only-dynamic-ssl/#non-goals","text":"Features related to certificate authentication are not changed in any way.","title":"Non-Goals"},{"location":"enhancements/20190724-only-dynamic-ssl/#proposal","text":"Remove static SSL configuration","title":"Proposal"},{"location":"enhancements/20190724-only-dynamic-ssl/#implementation-detailsnotesconstraints","text":"Deprecate the flag Move the directives ssl_certificate and ssl_certificate_key from each server block to the http section. These settings are required to avoid NGINX errors in the logs. Remove any action of the flag --enable-dynamic-certificates","title":"Implementation Details/Notes/Constraints"},{"location":"enhancements/20190724-only-dynamic-ssl/#drawbacks","text":"","title":"Drawbacks"},{"location":"enhancements/20190724-only-dynamic-ssl/#alternatives","text":"Keep both implementations","title":"Alternatives"},{"location":"enhancements/20190815-zone-aware-routing/","text":"Availability zone aware routing \u00b6 Table of Contents \u00b6 Summary Motivation Goals Non-Goals Proposal Implementation History Drawbacks [optional] Summary \u00b6 Teach ingress-nginx about availability zones where endpoints are running in. This way ingress-nginx pod will do its best to proxy to zone-local endpoint. Motivation \u00b6 When users run their services across multiple availability zones they usually pay for egress traffic between zones. Providers such as GCP, Amazon EC charges money for that. ingress-nginx when picking an endpoint to route request to does not consider whether the endpoint is in different zone or the same one. That means it's at least equally likely that it will pick an endpoint from another zone and proxy the request to it. In this situation response from the endpoint to ingress-nginx pod is considered as inter zone traffic and costs money. At the time of this writing GCP charges $0.01 per GB of inter zone egress traffic according to https://cloud.google.com/compute/network-pricing. According to https://datapath.io/resources/blog/what-are-aws-data-transfer-costs-and-how-to-minimize-them/ Amazon also charges the same amount of money sa GCP for cross zone, egress traffic. This can be a lot of money depending on once's traffic. By teaching ingress-nginx about zones we can eliminate or at least decrease this cost. Arguably inter-zone network latency should also be better than cross zone. Goals \u00b6 Given a regional cluster running ingress-nginx, ingress-nginx should do best effort to pick zone-local endpoint when proxying This should not impact canary feature ingress-nginx should be able to operate successfully if there's no zonal endpoints Non-Goals \u00b6 This feature inherently assumes that endpoints are distributed across zones in a way that they can handle all the traffic from ingress-nginx pod(s) in that zone This feature will be relying on https://kubernetes.io/docs/reference/kubernetes-api/labels-annotations-taints/#failure-domainbetakubernetesiozone, it is not this KEP's goal to support other cases Proposal \u00b6 The idea here is to have controller part of ingress-nginx to (1) detect what zone its current pod is running in and (2) detect the zone for every endpoints it knows about. After that it will post that data as part of endpoints to Lua land. Then Lua balancer when picking an endpoint will try to pick zone-local endpoint first and if there is no zone-local endpoint then it will fallback to current behaviour. This feature at least in the beginning should be optional since it is going to make it harder to reason about the load balancing and not everyone might want that. How does controller know what zone it runs in? We can have the pod spec do pass node name using downward API as an environment variable. Then on start controller can get node details from the API based on node name. Once the node details is obtained we can extract the zone from failure-domain.beta.kubernetes.io/zone annotation. Then we can pass that value to Lua land through Nginx configuration when loading lua_ingress.lua module in init_by_lua phase. How do we extract zones for endpoints? We can have the controller watch create and update events on nodes in the entire cluster and based on that keep the map of nodes to zones in the memory. And when we generate endpoints list, we can access node name using .subsets.addresses[i].nodeName and based on that fetch zone from the map in memory and store it as a field on the endpoint. This solution assumes failure-domain.beta.kubernetes.io/zone annotation does not change until the end of node's life. Otherwise we have to watch update events as well on the nodes and that'll add even more overhead. Alternatively, we can get the list of nodes only when there's no node in the memory for given node name. This is probably a better solution because then we would avoid watching for API changes on node resources. We can eagrly fetch all the nodes and build node name to zone mapping on start. And from thereon sync it during endpoints building in the main event loop iff there's no entry exist for the node of an endpoint. This means an extra API call in case cluster has expanded. How do we make sure we do our best to choose zone-local endpoint? This will be done on Lua side. For every backend we will initialize two balancer instances: (1) with all endpoints (2) with all endpoints corresponding to current zone for the backend. Then given the request once we choose what backend needs to serve the request, we will first try to use zonal balancer for that backend. If zonal balancer does not exist (i.e there's no zonal endpoint) then we will use general balancer. In case of zonal outages we assume that readiness probe will fail and controller will see no endpoints for the backend and therefore we will use general balancer. We can enable the feature using a configmap setting. Doing it this way makes it easier to rollback in case of a problem. Implementation History \u00b6 initial version of KEP is shipped proposal and implementation details is done Drawbacks [optional] \u00b6 More load on the Kubernetes API server.","title":"Availability zone aware routing"},{"location":"enhancements/20190815-zone-aware-routing/#availability-zone-aware-routing","text":"","title":"Availability zone aware routing"},{"location":"enhancements/20190815-zone-aware-routing/#table-of-contents","text":"Summary Motivation Goals Non-Goals Proposal Implementation History Drawbacks [optional]","title":"Table of Contents"},{"location":"enhancements/20190815-zone-aware-routing/#summary","text":"Teach ingress-nginx about availability zones where endpoints are running in. This way ingress-nginx pod will do its best to proxy to zone-local endpoint.","title":"Summary"},{"location":"enhancements/20190815-zone-aware-routing/#motivation","text":"When users run their services across multiple availability zones they usually pay for egress traffic between zones. Providers such as GCP, Amazon EC charges money for that. ingress-nginx when picking an endpoint to route request to does not consider whether the endpoint is in different zone or the same one. That means it's at least equally likely that it will pick an endpoint from another zone and proxy the request to it. In this situation response from the endpoint to ingress-nginx pod is considered as inter zone traffic and costs money. At the time of this writing GCP charges $0.01 per GB of inter zone egress traffic according to https://cloud.google.com/compute/network-pricing. According to https://datapath.io/resources/blog/what-are-aws-data-transfer-costs-and-how-to-minimize-them/ Amazon also charges the same amount of money sa GCP for cross zone, egress traffic. This can be a lot of money depending on once's traffic. By teaching ingress-nginx about zones we can eliminate or at least decrease this cost. Arguably inter-zone network latency should also be better than cross zone.","title":"Motivation"},{"location":"enhancements/20190815-zone-aware-routing/#goals","text":"Given a regional cluster running ingress-nginx, ingress-nginx should do best effort to pick zone-local endpoint when proxying This should not impact canary feature ingress-nginx should be able to operate successfully if there's no zonal endpoints","title":"Goals"},{"location":"enhancements/20190815-zone-aware-routing/#non-goals","text":"This feature inherently assumes that endpoints are distributed across zones in a way that they can handle all the traffic from ingress-nginx pod(s) in that zone This feature will be relying on https://kubernetes.io/docs/reference/kubernetes-api/labels-annotations-taints/#failure-domainbetakubernetesiozone, it is not this KEP's goal to support other cases","title":"Non-Goals"},{"location":"enhancements/20190815-zone-aware-routing/#proposal","text":"The idea here is to have controller part of ingress-nginx to (1) detect what zone its current pod is running in and (2) detect the zone for every endpoints it knows about. After that it will post that data as part of endpoints to Lua land. Then Lua balancer when picking an endpoint will try to pick zone-local endpoint first and if there is no zone-local endpoint then it will fallback to current behaviour. This feature at least in the beginning should be optional since it is going to make it harder to reason about the load balancing and not everyone might want that. How does controller know what zone it runs in? We can have the pod spec do pass node name using downward API as an environment variable. Then on start controller can get node details from the API based on node name. Once the node details is obtained we can extract the zone from failure-domain.beta.kubernetes.io/zone annotation. Then we can pass that value to Lua land through Nginx configuration when loading lua_ingress.lua module in init_by_lua phase. How do we extract zones for endpoints? We can have the controller watch create and update events on nodes in the entire cluster and based on that keep the map of nodes to zones in the memory. And when we generate endpoints list, we can access node name using .subsets.addresses[i].nodeName and based on that fetch zone from the map in memory and store it as a field on the endpoint. This solution assumes failure-domain.beta.kubernetes.io/zone annotation does not change until the end of node's life. Otherwise we have to watch update events as well on the nodes and that'll add even more overhead. Alternatively, we can get the list of nodes only when there's no node in the memory for given node name. This is probably a better solution because then we would avoid watching for API changes on node resources. We can eagrly fetch all the nodes and build node name to zone mapping on start. And from thereon sync it during endpoints building in the main event loop iff there's no entry exist for the node of an endpoint. This means an extra API call in case cluster has expanded. How do we make sure we do our best to choose zone-local endpoint? This will be done on Lua side. For every backend we will initialize two balancer instances: (1) with all endpoints (2) with all endpoints corresponding to current zone for the backend. Then given the request once we choose what backend needs to serve the request, we will first try to use zonal balancer for that backend. If zonal balancer does not exist (i.e there's no zonal endpoint) then we will use general balancer. In case of zonal outages we assume that readiness probe will fail and controller will see no endpoints for the backend and therefore we will use general balancer. We can enable the feature using a configmap setting. Doing it this way makes it easier to rollback in case of a problem.","title":"Proposal"},{"location":"enhancements/20190815-zone-aware-routing/#implementation-history","text":"initial version of KEP is shipped proposal and implementation details is done","title":"Implementation History"},{"location":"enhancements/20190815-zone-aware-routing/#drawbacks-optional","text":"More load on the Kubernetes API server.","title":"Drawbacks [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/","text":"Title \u00b6 This is the title of the KEP. Keep it simple and descriptive. A good title can help communicate what the KEP is and should be considered as part of any review. The title should be lowercased and spaces/punctuation should be replaced with - . To get started with this template: Make a copy of this template. Create a copy of this template and name it YYYYMMDD-my-title.md , where YYYYMMDD is the date the KEP was first drafted. Fill out the \"overview\" sections. This includes the Summary and Motivation sections. These should be easy if you've preflighted the idea of the KEP in an issue. Create a PR. Assign it to folks that are sponsoring this process. Create an issue When filing an enhancement tracking issue, please ensure to complete all fields in the template. Merge early. Avoid getting hung up on specific details and instead aim to get the goal of the KEP merged quickly. The best way to do this is to just start with the \"Overview\" sections and fill out details incrementally in follow on PRs. View anything marked as a provisional as a working document and subject to change. Aim for single topic PRs to keep discussions focused. If you disagree with what is already in a document, open a new PR with suggested changes. The canonical place for the latest set of instructions (and the likely source of this file) is here . The Metadata section above is intended to support the creation of tooling around the KEP process. This will be a YAML section that is fenced as a code block. See the KEP process for details on each of these items. Table of Contents \u00b6 A table of contents is helpful for quickly jumping to sections of a KEP and for highlighting any additional information provided beyond the standard KEP template. Ensure the TOC is wrapped with <!-- toc --&rt;<!-- /toc --&rt; tags, and then generate with hack/update-toc.sh . Summary Motivation Goals Non-Goals Proposal User Stories [optional] Story 1 Story 2 Implementation Details/Notes/Constraints [optional] Risks and Mitigations Design Details Test Plan Removing a deprecated flag Implementation History Drawbacks [optional] Alternatives [optional] Summary \u00b6 The Summary section is incredibly important for producing high quality user-focused documentation such as release notes or a development roadmap. It should be possible to collect this information before implementation begins in order to avoid requiring implementors to split their attention between writing release notes and implementing the feature itself. A good summary is probably at least a paragraph in length. Motivation \u00b6 This section is for explicitly listing the motivation, goals and non-goals of this KEP. Describe why the change is important and the benefits to users. The motivation section can optionally provide links to experience reports to demonstrate the interest in a KEP within the wider Kubernetes community. Goals \u00b6 List the specific goals of the KEP. How will we know that this has succeeded? Non-Goals \u00b6 What is out of scope for this KEP? Listing non-goals helps to focus discussion and make progress. Proposal \u00b6 This is where we get down to the nitty gritty of what the proposal actually is. User Stories [optional] \u00b6 Detail the things that people will be able to do if this KEP is implemented. Include as much detail as possible so that people can understand the \"how\" of the system. The goal here is to make this feel real for users without getting bogged down. Story 1 \u00b6 Story 2 \u00b6 Implementation Details/Notes/Constraints [optional] \u00b6 What are the caveats to the implementation? What are some important details that didn't come across above. Go in to as much detail as necessary here. This might be a good place to talk about core concepts and how they releate. Risks and Mitigations \u00b6 What are the risks of this proposal and how do we mitigate. Think broadly. For example, consider both security and how this will impact the larger kubernetes ecosystem. How will security be reviewed and by whom? How will UX be reviewed and by whom? Consider including folks that also work outside project. Design Details \u00b6 Test Plan \u00b6 Note: Section not required until targeted at a release. Consider the following in developing a test plan for this enhancement: Will there be e2e and integration tests, in addition to unit tests? How will it be tested in isolation vs with other components? No need to outline all of the test cases, just the general strategy. Anything that would count as tricky in the implementation and anything particularly challenging to test should be called out. All code is expected to have adequate tests (eventually with coverage expectations). Please adhere to the Kubernetes testing guidelines when drafting this test plan. Removing a deprecated flag \u00b6 Announce deprecation and support policy of the existing flag Two versions passed since introducing the functionality which deprecates the flag (to address version skew) Address feedback on usage/changed behavior, provided on GitHub issues Deprecate the flag Implementation History \u00b6 Major milestones in the life cycle of a KEP should be tracked in Implementation History . Major milestones might include the Summary and Motivation sections being merged signaling acceptance the Proposal section being merged signaling agreement on a proposed design the date implementation started the first Kubernetes release where an initial version of the KEP was available the version of Kubernetes where the KEP graduated to general availability when the KEP was retired or superseded Drawbacks [optional] \u00b6 Why should this KEP not be implemented. Alternatives [optional] \u00b6 Similar to the Drawbacks section the Alternatives section is used to highlight and record other possible approaches to delivering the value proposed by a KEP.","title":"KEP Template"},{"location":"enhancements/YYYYMMDD-kep-template/#title","text":"This is the title of the KEP. Keep it simple and descriptive. A good title can help communicate what the KEP is and should be considered as part of any review. The title should be lowercased and spaces/punctuation should be replaced with - . To get started with this template: Make a copy of this template. Create a copy of this template and name it YYYYMMDD-my-title.md , where YYYYMMDD is the date the KEP was first drafted. Fill out the \"overview\" sections. This includes the Summary and Motivation sections. These should be easy if you've preflighted the idea of the KEP in an issue. Create a PR. Assign it to folks that are sponsoring this process. Create an issue When filing an enhancement tracking issue, please ensure to complete all fields in the template. Merge early. Avoid getting hung up on specific details and instead aim to get the goal of the KEP merged quickly. The best way to do this is to just start with the \"Overview\" sections and fill out details incrementally in follow on PRs. View anything marked as a provisional as a working document and subject to change. Aim for single topic PRs to keep discussions focused. If you disagree with what is already in a document, open a new PR with suggested changes. The canonical place for the latest set of instructions (and the likely source of this file) is here . The Metadata section above is intended to support the creation of tooling around the KEP process. This will be a YAML section that is fenced as a code block. See the KEP process for details on each of these items.","title":"Title"},{"location":"enhancements/YYYYMMDD-kep-template/#table-of-contents","text":"A table of contents is helpful for quickly jumping to sections of a KEP and for highlighting any additional information provided beyond the standard KEP template. Ensure the TOC is wrapped with <!-- toc --&rt;<!-- /toc --&rt; tags, and then generate with hack/update-toc.sh . Summary Motivation Goals Non-Goals Proposal User Stories [optional] Story 1 Story 2 Implementation Details/Notes/Constraints [optional] Risks and Mitigations Design Details Test Plan Removing a deprecated flag Implementation History Drawbacks [optional] Alternatives [optional]","title":"Table of Contents"},{"location":"enhancements/YYYYMMDD-kep-template/#summary","text":"The Summary section is incredibly important for producing high quality user-focused documentation such as release notes or a development roadmap. It should be possible to collect this information before implementation begins in order to avoid requiring implementors to split their attention between writing release notes and implementing the feature itself. A good summary is probably at least a paragraph in length.","title":"Summary"},{"location":"enhancements/YYYYMMDD-kep-template/#motivation","text":"This section is for explicitly listing the motivation, goals and non-goals of this KEP. Describe why the change is important and the benefits to users. The motivation section can optionally provide links to experience reports to demonstrate the interest in a KEP within the wider Kubernetes community.","title":"Motivation"},{"location":"enhancements/YYYYMMDD-kep-template/#goals","text":"List the specific goals of the KEP. How will we know that this has succeeded?","title":"Goals"},{"location":"enhancements/YYYYMMDD-kep-template/#non-goals","text":"What is out of scope for this KEP? Listing non-goals helps to focus discussion and make progress.","title":"Non-Goals"},{"location":"enhancements/YYYYMMDD-kep-template/#proposal","text":"This is where we get down to the nitty gritty of what the proposal actually is.","title":"Proposal"},{"location":"enhancements/YYYYMMDD-kep-template/#user-stories-optional","text":"Detail the things that people will be able to do if this KEP is implemented. Include as much detail as possible so that people can understand the \"how\" of the system. The goal here is to make this feel real for users without getting bogged down.","title":"User Stories [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#story-1","text":"","title":"Story 1"},{"location":"enhancements/YYYYMMDD-kep-template/#story-2","text":"","title":"Story 2"},{"location":"enhancements/YYYYMMDD-kep-template/#implementation-detailsnotesconstraints-optional","text":"What are the caveats to the implementation? What are some important details that didn't come across above. Go in to as much detail as necessary here. This might be a good place to talk about core concepts and how they releate.","title":"Implementation Details/Notes/Constraints [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#risks-and-mitigations","text":"What are the risks of this proposal and how do we mitigate. Think broadly. For example, consider both security and how this will impact the larger kubernetes ecosystem. How will security be reviewed and by whom? How will UX be reviewed and by whom? Consider including folks that also work outside project.","title":"Risks and Mitigations"},{"location":"enhancements/YYYYMMDD-kep-template/#design-details","text":"","title":"Design Details"},{"location":"enhancements/YYYYMMDD-kep-template/#test-plan","text":"Note: Section not required until targeted at a release. Consider the following in developing a test plan for this enhancement: Will there be e2e and integration tests, in addition to unit tests? How will it be tested in isolation vs with other components? No need to outline all of the test cases, just the general strategy. Anything that would count as tricky in the implementation and anything particularly challenging to test should be called out. All code is expected to have adequate tests (eventually with coverage expectations). Please adhere to the Kubernetes testing guidelines when drafting this test plan.","title":"Test Plan"},{"location":"enhancements/YYYYMMDD-kep-template/#removing-a-deprecated-flag","text":"Announce deprecation and support policy of the existing flag Two versions passed since introducing the functionality which deprecates the flag (to address version skew) Address feedback on usage/changed behavior, provided on GitHub issues Deprecate the flag","title":"Removing a deprecated flag"},{"location":"enhancements/YYYYMMDD-kep-template/#implementation-history","text":"Major milestones in the life cycle of a KEP should be tracked in Implementation History . Major milestones might include the Summary and Motivation sections being merged signaling acceptance the Proposal section being merged signaling agreement on a proposed design the date implementation started the first Kubernetes release where an initial version of the KEP was available the version of Kubernetes where the KEP graduated to general availability when the KEP was retired or superseded","title":"Implementation History"},{"location":"enhancements/YYYYMMDD-kep-template/#drawbacks-optional","text":"Why should this KEP not be implemented.","title":"Drawbacks [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#alternatives-optional","text":"Similar to the Drawbacks section the Alternatives section is used to highlight and record other possible approaches to delivering the value proposed by a KEP.","title":"Alternatives [optional]"},{"location":"examples/","text":"Ingress examples \u00b6 This directory contains a catalog of examples on how to run, configure and scale Ingress. Please review the prerequisites before trying them. Category Name Description Complexity Level Apps Docker Registry TODO TODO Auth Basic authentication password protect your website Intermediate Auth Client certificate authentication secure your website with client certificate authentication Intermediate Auth External authentication plugin defer to an external authentication service Intermediate Auth OAuth external auth TODO TODO Customization Configuration snippets customize nginx location configuration using annotations Advanced Customization Custom configuration TODO TODO Customization Custom DH parameters for perfect forward secrecy TODO TODO Customization Custom errors serve custom error pages from the default backend Intermediate Customization Custom headers set custom headers before sending traffic to backends Advanced Customization External authentication with response header propagation TODO TODO Customization Sysctl tuning TODO TODO Features Rewrite TODO TODO Features Session stickiness route requests consistently to the same endpoint Advanced Scaling Static IP a single ingress gets a single static IP Intermediate TLS Multi TLS certificate termination TODO TODO TLS TLS termination TODO TODO","title":"Introduction"},{"location":"examples/#ingress-examples","text":"This directory contains a catalog of examples on how to run, configure and scale Ingress. Please review the prerequisites before trying them. Category Name Description Complexity Level Apps Docker Registry TODO TODO Auth Basic authentication password protect your website Intermediate Auth Client certificate authentication secure your website with client certificate authentication Intermediate Auth External authentication plugin defer to an external authentication service Intermediate Auth OAuth external auth TODO TODO Customization Configuration snippets customize nginx location configuration using annotations Advanced Customization Custom configuration TODO TODO Customization Custom DH parameters for perfect forward secrecy TODO TODO Customization Custom errors serve custom error pages from the default backend Intermediate Customization Custom headers set custom headers before sending traffic to backends Advanced Customization External authentication with response header propagation TODO TODO Customization Sysctl tuning TODO TODO Features Rewrite TODO TODO Features Session stickiness route requests consistently to the same endpoint Advanced Scaling Static IP a single ingress gets a single static IP Intermediate TLS Multi TLS certificate termination TODO TODO TLS TLS termination TODO TODO","title":"Ingress examples"},{"location":"examples/PREREQUISITES/","text":"Prerequisites \u00b6 Many of the examples in this directory have common prerequisites. TLS certificates \u00b6 Unless otherwise mentioned, the TLS secret used in examples is a 2048 bit RSA key/cert pair with an arbitrarily chosen hostname, created as follows $ openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj \"/CN=nginxsvc/O=nginxsvc\" Generating a 2048 bit RSA private key ................+++ ................+++ writing new private key to 'tls.key' ----- $ kubectl create secret tls tls-secret --key tls.key --cert tls.crt secret \"tls-secret\" created Note: If using CA Authentication, described below, you will need to sign the server certificate with the CA. Client Certificate Authentication \u00b6 CA Authentication also known as Mutual Authentication allows both the server and client to verify each others identity via a common CA. We have a CA Certificate which we obtain usually from a Certificate Authority and use that to sign both our server certificate and client certificate. Then every time we want to access our backend, we must pass the client certificate. These instructions are based on the following blog Generate the CA Key and Certificate: openssl req -x509 -sha256 -newkey rsa:4096 -keyout ca.key -out ca.crt -days 356 -nodes -subj '/CN=My Cert Authority' Generate the Server Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout server.key -out server.csr -nodes -subj '/CN=mydomain.com' openssl x509 -req -sha256 -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out server.crt Generate the Client Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout client.key -out client.csr -nodes -subj '/CN=My Client' openssl x509 -req -sha256 -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 02 -out client.crt Once this is complete you can continue to follow the instructions here Test HTTP Service \u00b6 All examples that require a test HTTP Service use the standard http-svc pod, which you can deploy as follows $ kubectl create -f http-svc.yaml service \"http-svc\" created replicationcontroller \"http-svc\" created $ kubectl get po NAME READY STATUS RESTARTS AGE http-svc-p1t3t 1/1 Running 0 1d $ kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d You can test that the HTTP Service works by exposing it temporarily $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"LoadBalancer\"}}' \"http-svc\" patched $ kubectl get svc http-svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d $ kubectl describe svc http-svc Name: http-svc Namespace: default Labels: app=http-svc Selector: app=http-svc Type: LoadBalancer IP: 10.0.122.116 LoadBalancer Ingress: 108.59.87.136 Port: http 80/TCP NodePort: http 30301/TCP Endpoints: 10.180.1.6:8080 Session Affinity: None Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 1m 1m 1 {service-controller } Normal Type ClusterIP -> LoadBalancer 1m 1m 1 {service-controller } Normal CreatingLoadBalancer Creating load balancer 16s 16s 1 {service-controller } Normal CreatedLoadBalancer Created load balancer $ curl 108 .59.87.136 CLIENT VALUES: client_address=10.240.0.3 command=GET real path=/ query=nil request_version=1.1 request_uri=http://108.59.87.136:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* host=108.59.87.136 user-agent=curl/7.46.0 BODY: -no body in request- $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"NodePort\"}}' \"http-svc\" patched","title":"Prerequisites"},{"location":"examples/PREREQUISITES/#prerequisites","text":"Many of the examples in this directory have common prerequisites.","title":"Prerequisites"},{"location":"examples/PREREQUISITES/#tls-certificates","text":"Unless otherwise mentioned, the TLS secret used in examples is a 2048 bit RSA key/cert pair with an arbitrarily chosen hostname, created as follows $ openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj \"/CN=nginxsvc/O=nginxsvc\" Generating a 2048 bit RSA private key ................+++ ................+++ writing new private key to 'tls.key' ----- $ kubectl create secret tls tls-secret --key tls.key --cert tls.crt secret \"tls-secret\" created Note: If using CA Authentication, described below, you will need to sign the server certificate with the CA.","title":"TLS certificates"},{"location":"examples/PREREQUISITES/#client-certificate-authentication","text":"CA Authentication also known as Mutual Authentication allows both the server and client to verify each others identity via a common CA. We have a CA Certificate which we obtain usually from a Certificate Authority and use that to sign both our server certificate and client certificate. Then every time we want to access our backend, we must pass the client certificate. These instructions are based on the following blog Generate the CA Key and Certificate: openssl req -x509 -sha256 -newkey rsa:4096 -keyout ca.key -out ca.crt -days 356 -nodes -subj '/CN=My Cert Authority' Generate the Server Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout server.key -out server.csr -nodes -subj '/CN=mydomain.com' openssl x509 -req -sha256 -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out server.crt Generate the Client Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout client.key -out client.csr -nodes -subj '/CN=My Client' openssl x509 -req -sha256 -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 02 -out client.crt Once this is complete you can continue to follow the instructions here","title":"Client Certificate Authentication"},{"location":"examples/PREREQUISITES/#test-http-service","text":"All examples that require a test HTTP Service use the standard http-svc pod, which you can deploy as follows $ kubectl create -f http-svc.yaml service \"http-svc\" created replicationcontroller \"http-svc\" created $ kubectl get po NAME READY STATUS RESTARTS AGE http-svc-p1t3t 1/1 Running 0 1d $ kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d You can test that the HTTP Service works by exposing it temporarily $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"LoadBalancer\"}}' \"http-svc\" patched $ kubectl get svc http-svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d $ kubectl describe svc http-svc Name: http-svc Namespace: default Labels: app=http-svc Selector: app=http-svc Type: LoadBalancer IP: 10.0.122.116 LoadBalancer Ingress: 108.59.87.136 Port: http 80/TCP NodePort: http 30301/TCP Endpoints: 10.180.1.6:8080 Session Affinity: None Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 1m 1m 1 {service-controller } Normal Type ClusterIP -> LoadBalancer 1m 1m 1 {service-controller } Normal CreatingLoadBalancer Creating load balancer 16s 16s 1 {service-controller } Normal CreatedLoadBalancer Created load balancer $ curl 108 .59.87.136 CLIENT VALUES: client_address=10.240.0.3 command=GET real path=/ query=nil request_version=1.1 request_uri=http://108.59.87.136:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* host=108.59.87.136 user-agent=curl/7.46.0 BODY: -no body in request- $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"NodePort\"}}' \"http-svc\" patched","title":"Test HTTP Service"},{"location":"examples/affinity/cookie/","text":"Sticky sessions \u00b6 This example demonstrates how to achieve session affinity using cookies. Deployment \u00b6 Session affinity can be configured using the following annotations: Name Description Value nginx.ingress.kubernetes.io/affinity Type of the affinity, set this to cookie to enable session affinity string (NGINX only supports cookie ) nginx.ingress.kubernetes.io/affinity-mode The affinity mode defines how sticky a session is. Use balanced to redistribute some sessions when scaling pods or persistent for maximum stickyness. balanced (default) or persistent nginx.ingress.kubernetes.io/session-cookie-name Name of the cookie that will be created string (defaults to INGRESSCOOKIE ) nginx.ingress.kubernetes.io/session-cookie-path Path that will be set on the cookie (required if your Ingress paths use regular expressions) string (defaults to the currently matched path ) nginx.ingress.kubernetes.io/session-cookie-samesite SameSite attribute to apply to the cookie Browser accepted values are None , Lax , and Strict nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none Will omit SameSite=None attribute for older browsers which reject the more-recently defined SameSite=None value \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-max-age Time until the cookie expires, corresponds to the Max-Age cookie directive number of seconds nginx.ingress.kubernetes.io/session-cookie-expires Legacy version of the previous annotation for compatibility with older browsers, generates an Expires cookie directive by adding the seconds to the current date number of seconds nginx.ingress.kubernetes.io/session-cookie-change-on-failure When set to false nginx ingress will send request to upstream pointed by sticky cookie even if previous attempt failed. When set to true and previous attempt failed, sticky cookie will be changed to point to another upstream. true or false (defaults to false ) You can create the example Ingress to test this: kubectl create -f ingress.yaml Validation \u00b6 You can confirm that the Ingress works: $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) Rules: Host Path Backends ---- ---- -------- stickyingress.example.com / nginx-service:80 (<none>) Annotations: affinity: cookie session-cookie-name: INGRESSCOOKIE session-cookie-expires: 172800 session-cookie-max-age: 172800 Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test $ curl -I http://stickyingress.example.com HTTP/1.1 200 OK Server: nginx/1.11.9 Date: Fri, 10 Feb 2017 14:11:12 GMT Content-Type: text/html Content-Length: 612 Connection: keep-alive Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Expires=Sun, 12-Feb-17 14:11:12 GMT; Max-Age=172800; Path=/; HttpOnly Last-Modified: Tue, 24 Jan 2017 14:02:19 GMT ETag: \"58875e6b-264\" Accept-Ranges: bytes In the example above, you can see that the response contains a Set-Cookie header with the settings we have defined. This cookie is created by NGINX, it contains a randomly generated key corresponding to the upstream used for that request (selected using consistent hashing ) and has an Expires directive. If the user changes this cookie, NGINX creates a new one and redirects the user to another upstream. If the backend pool grows NGINX will keep sending the requests through the same server of the first request, even if it's overloaded. When the backend server is removed, the requests are re-routed to another upstream server. This does not require the cookie to be updated because the key's consistent hash will change. When you have a Service pointing to more than one Ingress, with only one containing affinity configuration, the first created Ingress will be used. This means that you can face the situation that you've configured session affinity on one Ingress and it doesn't work because the Service is pointing to another Ingress that doesn't configure this.","title":"Sticky Sessions"},{"location":"examples/affinity/cookie/#sticky-sessions","text":"This example demonstrates how to achieve session affinity using cookies.","title":"Sticky sessions"},{"location":"examples/affinity/cookie/#deployment","text":"Session affinity can be configured using the following annotations: Name Description Value nginx.ingress.kubernetes.io/affinity Type of the affinity, set this to cookie to enable session affinity string (NGINX only supports cookie ) nginx.ingress.kubernetes.io/affinity-mode The affinity mode defines how sticky a session is. Use balanced to redistribute some sessions when scaling pods or persistent for maximum stickyness. balanced (default) or persistent nginx.ingress.kubernetes.io/session-cookie-name Name of the cookie that will be created string (defaults to INGRESSCOOKIE ) nginx.ingress.kubernetes.io/session-cookie-path Path that will be set on the cookie (required if your Ingress paths use regular expressions) string (defaults to the currently matched path ) nginx.ingress.kubernetes.io/session-cookie-samesite SameSite attribute to apply to the cookie Browser accepted values are None , Lax , and Strict nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none Will omit SameSite=None attribute for older browsers which reject the more-recently defined SameSite=None value \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-max-age Time until the cookie expires, corresponds to the Max-Age cookie directive number of seconds nginx.ingress.kubernetes.io/session-cookie-expires Legacy version of the previous annotation for compatibility with older browsers, generates an Expires cookie directive by adding the seconds to the current date number of seconds nginx.ingress.kubernetes.io/session-cookie-change-on-failure When set to false nginx ingress will send request to upstream pointed by sticky cookie even if previous attempt failed. When set to true and previous attempt failed, sticky cookie will be changed to point to another upstream. true or false (defaults to false ) You can create the example Ingress to test this: kubectl create -f ingress.yaml","title":"Deployment"},{"location":"examples/affinity/cookie/#validation","text":"You can confirm that the Ingress works: $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) Rules: Host Path Backends ---- ---- -------- stickyingress.example.com / nginx-service:80 (<none>) Annotations: affinity: cookie session-cookie-name: INGRESSCOOKIE session-cookie-expires: 172800 session-cookie-max-age: 172800 Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test $ curl -I http://stickyingress.example.com HTTP/1.1 200 OK Server: nginx/1.11.9 Date: Fri, 10 Feb 2017 14:11:12 GMT Content-Type: text/html Content-Length: 612 Connection: keep-alive Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Expires=Sun, 12-Feb-17 14:11:12 GMT; Max-Age=172800; Path=/; HttpOnly Last-Modified: Tue, 24 Jan 2017 14:02:19 GMT ETag: \"58875e6b-264\" Accept-Ranges: bytes In the example above, you can see that the response contains a Set-Cookie header with the settings we have defined. This cookie is created by NGINX, it contains a randomly generated key corresponding to the upstream used for that request (selected using consistent hashing ) and has an Expires directive. If the user changes this cookie, NGINX creates a new one and redirects the user to another upstream. If the backend pool grows NGINX will keep sending the requests through the same server of the first request, even if it's overloaded. When the backend server is removed, the requests are re-routed to another upstream server. This does not require the cookie to be updated because the key's consistent hash will change. When you have a Service pointing to more than one Ingress, with only one containing affinity configuration, the first created Ingress will be used. This means that you can face the situation that you've configured session affinity on one Ingress and it doesn't work because the Service is pointing to another Ingress that doesn't configure this.","title":"Validation"},{"location":"examples/auth/basic/","text":"Basic Authentication \u00b6 This example shows how to add authentication in a Ingress rule using a secret that contains a file generated with htpasswd . It's important the file generated is named auth (actually - that the secret has a key data.auth ), otherwise the ingress-controller returns a 503. $ htpasswd -c auth foo New password: <bar> New password: Re-type new password: Adding password for user foo $ kubectl create secret generic basic-auth --from-file = auth secret \"basic-auth\" created $ kubectl get secret basic-auth -o yaml apiVersion: v1 data: auth: Zm9vOiRhcHIxJE9GRzNYeWJwJGNrTDBGSERBa29YWUlsSDkuY3lzVDAK kind: Secret metadata: name: basic-auth namespace: default type: Opaque echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-with-auth annotations: # type of authentication nginx.ingress.kubernetes.io/auth-type: basic # name of the secret that contains the user/password definitions nginx.ingress.kubernetes.io/auth-secret: basic-auth # message to display with an appropriate context why the authentication is required nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo' spec: rules: - host: foo.bar.com http: paths: - path: / backend: serviceName: http-svc servicePort: 80 \" | kubectl create -f - $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) > GET / HTTP/1.1 > Host: foo.bar.com > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 05:27:23 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Authentication Required - foo\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.10.0</center> </body> </html> * Connection #0 to host 10.2.29.4 left intact $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' -u 'foo:bar' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) * Server auth using Basic with user 'foo' > GET / HTTP/1.1 > Host: foo.bar.com > Authorization: Basic Zm9vOmJhcg== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 06:05:26 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < Vary: Accept-Encoding < CLIENT VALUES: client_address=10.2.29.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic Zm9vOmJhcg== connection=close host=foo.bar.com user-agent=curl/7.43.0 x-forwarded-for=10.2.29.1 x-forwarded-host=foo.bar.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.29.1 BODY: * Connection #0 to host 10.2.29.4 left intact -no body in request-","title":"Basic Authentication"},{"location":"examples/auth/basic/#basic-authentication","text":"This example shows how to add authentication in a Ingress rule using a secret that contains a file generated with htpasswd . It's important the file generated is named auth (actually - that the secret has a key data.auth ), otherwise the ingress-controller returns a 503. $ htpasswd -c auth foo New password: <bar> New password: Re-type new password: Adding password for user foo $ kubectl create secret generic basic-auth --from-file = auth secret \"basic-auth\" created $ kubectl get secret basic-auth -o yaml apiVersion: v1 data: auth: Zm9vOiRhcHIxJE9GRzNYeWJwJGNrTDBGSERBa29YWUlsSDkuY3lzVDAK kind: Secret metadata: name: basic-auth namespace: default type: Opaque echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-with-auth annotations: # type of authentication nginx.ingress.kubernetes.io/auth-type: basic # name of the secret that contains the user/password definitions nginx.ingress.kubernetes.io/auth-secret: basic-auth # message to display with an appropriate context why the authentication is required nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo' spec: rules: - host: foo.bar.com http: paths: - path: / backend: serviceName: http-svc servicePort: 80 \" | kubectl create -f - $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) > GET / HTTP/1.1 > Host: foo.bar.com > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 05:27:23 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Authentication Required - foo\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.10.0</center> </body> </html> * Connection #0 to host 10.2.29.4 left intact $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' -u 'foo:bar' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) * Server auth using Basic with user 'foo' > GET / HTTP/1.1 > Host: foo.bar.com > Authorization: Basic Zm9vOmJhcg== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 06:05:26 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < Vary: Accept-Encoding < CLIENT VALUES: client_address=10.2.29.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic Zm9vOmJhcg== connection=close host=foo.bar.com user-agent=curl/7.43.0 x-forwarded-for=10.2.29.1 x-forwarded-host=foo.bar.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.29.1 BODY: * Connection #0 to host 10.2.29.4 left intact -no body in request-","title":"Basic Authentication"},{"location":"examples/auth/client-certs/","text":"Client Certificate Authentication \u00b6 It is possible to enable Client-Certificate Authentication by adding additional annotations to your Ingress Resource. Before getting started you must have the following Certificates Setup: CA certificate and Key(Intermediate Certs need to be in CA) Server Certificate(Signed by CA) and Key (CN should be equal the hostname you will use) Client Certificate(Signed by CA) and Key For more details on the generation process, checkout the Prerequisite docs . You can have as many certificates as you want. If they're in the binary DER format, you can convert them as the following: openssl x509 -in certificate.der -inform der -out certificate.crt -outform pem Then, you can concatenate them all in only one file, named 'ca.crt' as the following: cat certificate1.crt certificate2.crt certificate3.crt >> ca.crt Note: Make sure that the Key Size is greater than 1024 and Hashing Algorithm(Digest) is something better than md5 for each certificate generated. Otherwise you will receive an error. Creating Certificate Secrets \u00b6 There are many different ways of configuring your secrets to enable Client-Certificate Authentication to work properly. You can create a secret containing just the CA certificate and another Secret containing the Server Certificate which is Signed by the CA. kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt kubectl create secret generic tls-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key You can create a secret containing CA certificate along with the Server Certificate, that can be used for both TLS and Client Auth. kubectl create secret generic ca-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key --from-file = ca.crt = ca.crt If you want to also enable Certificate Revocation List verification you can create the secret also containing the CRL file in PEM format: kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt --from-file = ca.crl = ca.crl Note: The CA Certificate must contain the trusted certificate authority chain to verify client certificates. Setup Instructions \u00b6 Add the annotations as provided in the ingress.yaml example to your own ingress resources as required. Test by performing a curl against the Ingress Path without the Client Cert and expect a Status Code 400. Test by performing a curl against the Ingress Path with the Client Cert and expect a Status Code 200.","title":"Client Certificate Authentication"},{"location":"examples/auth/client-certs/#client-certificate-authentication","text":"It is possible to enable Client-Certificate Authentication by adding additional annotations to your Ingress Resource. Before getting started you must have the following Certificates Setup: CA certificate and Key(Intermediate Certs need to be in CA) Server Certificate(Signed by CA) and Key (CN should be equal the hostname you will use) Client Certificate(Signed by CA) and Key For more details on the generation process, checkout the Prerequisite docs . You can have as many certificates as you want. If they're in the binary DER format, you can convert them as the following: openssl x509 -in certificate.der -inform der -out certificate.crt -outform pem Then, you can concatenate them all in only one file, named 'ca.crt' as the following: cat certificate1.crt certificate2.crt certificate3.crt >> ca.crt Note: Make sure that the Key Size is greater than 1024 and Hashing Algorithm(Digest) is something better than md5 for each certificate generated. Otherwise you will receive an error.","title":"Client Certificate Authentication"},{"location":"examples/auth/client-certs/#creating-certificate-secrets","text":"There are many different ways of configuring your secrets to enable Client-Certificate Authentication to work properly. You can create a secret containing just the CA certificate and another Secret containing the Server Certificate which is Signed by the CA. kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt kubectl create secret generic tls-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key You can create a secret containing CA certificate along with the Server Certificate, that can be used for both TLS and Client Auth. kubectl create secret generic ca-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key --from-file = ca.crt = ca.crt If you want to also enable Certificate Revocation List verification you can create the secret also containing the CRL file in PEM format: kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt --from-file = ca.crl = ca.crl Note: The CA Certificate must contain the trusted certificate authority chain to verify client certificates.","title":"Creating Certificate Secrets"},{"location":"examples/auth/client-certs/#setup-instructions","text":"Add the annotations as provided in the ingress.yaml example to your own ingress resources as required. Test by performing a curl against the Ingress Path without the Client Cert and expect a Status Code 400. Test by performing a curl against the Ingress Path with the Client Cert and expect a Status Code 200.","title":"Setup Instructions"},{"location":"examples/auth/external-auth/","text":"External Basic Authentication \u00b6 Example 1: \u00b6 Use an external service (Basic Auth) located in https://httpbin.org $ kubectl create -f ingress.yaml ingress \"external-auth\" created $ kubectl get ing external-auth NAME HOSTS ADDRESS PORTS AGE external-auth external-auth-01.sample.com 172.17.4.99 80 13s $ kubectl get ing external-auth -o yaml apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/auth-url: https://httpbin.org/basic-auth/user/passwd creationTimestamp: 2016-10-03T13:50:35Z generation: 1 name: external-auth namespace: default resourceVersion: \"2068378\" selfLink: /apis/networking/v1beta1/namespaces/default/ingresses/external-auth uid: 5c388f1d-8970-11e6-9004-080027d2dc94 spec: rules: - host: external-auth-01.sample.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / status: loadBalancer: ingress: - ip: 172.17.4.99 $ Test 1: no username/password (expect code 401) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) > GET / HTTP/1.1 > Host: external-auth-01.sample.com > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:08 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact Test 2: valid username/password (expect code 200) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:passwd' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjpwYXNzd2Q= > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:50 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < CLIENT VALUES: client_address=10.2.60.2 command=GET real path=/ query=nil request_version=1.1 request_uri=http://external-auth-01.sample.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic dXNlcjpwYXNzd2Q= connection=close host=external-auth-01.sample.com user-agent=curl/7.50.1 x-forwarded-for=10.2.60.1 x-forwarded-host=external-auth-01.sample.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.60.1 BODY: * Connection #0 to host 172.17.4.99 left intact -no body in request- Test 3: invalid username/password (expect code 401) curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:user' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjp1c2Vy > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:53:04 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive * Authentication problem. Ignoring this. < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact","title":"External Basic Authentication"},{"location":"examples/auth/external-auth/#external-basic-authentication","text":"","title":"External Basic Authentication"},{"location":"examples/auth/external-auth/#example-1","text":"Use an external service (Basic Auth) located in https://httpbin.org $ kubectl create -f ingress.yaml ingress \"external-auth\" created $ kubectl get ing external-auth NAME HOSTS ADDRESS PORTS AGE external-auth external-auth-01.sample.com 172.17.4.99 80 13s $ kubectl get ing external-auth -o yaml apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/auth-url: https://httpbin.org/basic-auth/user/passwd creationTimestamp: 2016-10-03T13:50:35Z generation: 1 name: external-auth namespace: default resourceVersion: \"2068378\" selfLink: /apis/networking/v1beta1/namespaces/default/ingresses/external-auth uid: 5c388f1d-8970-11e6-9004-080027d2dc94 spec: rules: - host: external-auth-01.sample.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / status: loadBalancer: ingress: - ip: 172.17.4.99 $ Test 1: no username/password (expect code 401) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) > GET / HTTP/1.1 > Host: external-auth-01.sample.com > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:08 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact Test 2: valid username/password (expect code 200) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:passwd' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjpwYXNzd2Q= > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:50 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < CLIENT VALUES: client_address=10.2.60.2 command=GET real path=/ query=nil request_version=1.1 request_uri=http://external-auth-01.sample.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic dXNlcjpwYXNzd2Q= connection=close host=external-auth-01.sample.com user-agent=curl/7.50.1 x-forwarded-for=10.2.60.1 x-forwarded-host=external-auth-01.sample.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.60.1 BODY: * Connection #0 to host 172.17.4.99 left intact -no body in request- Test 3: invalid username/password (expect code 401) curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:user' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjp1c2Vy > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:53:04 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive * Authentication problem. Ignoring this. < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact","title":"Example 1:"},{"location":"examples/auth/oauth-external-auth/","text":"External OAUTH Authentication \u00b6 Overview \u00b6 The auth-url and auth-signin annotations allow you to use an external authentication provider to protect your Ingress resources. Important This annotation requires nginx-ingress-controller v0.9.0 or greater.) Key Detail \u00b6 This functionality is enabled by deploying multiple Ingress objects for a single host. One Ingress object has no special annotations and handles authentication. Other Ingress objects can then be annotated in such a way that require the user to authenticate against the first Ingress's endpoint, and can redirect 401 s to the same endpoint. Sample: ... metadata : name : application annotations : nginx.ingress.kubernetes.io/auth-url : \"https://$host/oauth2/auth\" nginx.ingress.kubernetes.io/auth-signin : \"https://$host/oauth2/start?rd=$escaped_request_uri\" ... Example: OAuth2 Proxy + Kubernetes-Dashboard \u00b6 This example will show you how to deploy oauth2_proxy into a Kubernetes cluster and use it to protect the Kubernetes Dashboard using github as oAuth2 provider Prepare \u00b6 Install the kubernetes dashboard kubectl create -f https://raw.githubusercontent.com/kubernetes/kops/master/addons/kubernetes-dashboard/v1.10.1.yaml Create a custom Github OAuth application Homepage URL is the FQDN in the Ingress rule, like https://foo.bar.com Authorization callback URL is the same as the base FQDN plus /oauth2 , like https://foo.bar.com/oauth2 Configure oauth2_proxy values in the file oauth2-proxy.yaml with the values: OAUTH2_PROXY_CLIENT_ID with the github <Client ID> OAUTH2_PROXY_CLIENT_SECRET with the github <Client Secret> OAUTH2_PROXY_COOKIE_SECRET with value of python -c 'import os,base64; print(base64.b64encode(os.urandom(16)).decode(\"ascii\"))' Customize the contents of the file dashboard-ingress.yaml : Replace __INGRESS_HOST__ with a valid FQDN and __INGRESS_SECRET__ with a Secret with a valid SSL certificate. Deploy the oauth2 proxy and the ingress rules running: $ kubectl create -f oauth2-proxy.yaml,dashboard-ingress.yaml Test the oauth integration accessing the configured URL, like https://foo.bar.com","title":"External OAUTH Authentication"},{"location":"examples/auth/oauth-external-auth/#external-oauth-authentication","text":"","title":"External OAUTH Authentication"},{"location":"examples/auth/oauth-external-auth/#overview","text":"The auth-url and auth-signin annotations allow you to use an external authentication provider to protect your Ingress resources. Important This annotation requires nginx-ingress-controller v0.9.0 or greater.)","title":"Overview"},{"location":"examples/auth/oauth-external-auth/#key-detail","text":"This functionality is enabled by deploying multiple Ingress objects for a single host. One Ingress object has no special annotations and handles authentication. Other Ingress objects can then be annotated in such a way that require the user to authenticate against the first Ingress's endpoint, and can redirect 401 s to the same endpoint. Sample: ... metadata : name : application annotations : nginx.ingress.kubernetes.io/auth-url : \"https://$host/oauth2/auth\" nginx.ingress.kubernetes.io/auth-signin : \"https://$host/oauth2/start?rd=$escaped_request_uri\" ...","title":"Key Detail"},{"location":"examples/auth/oauth-external-auth/#example-oauth2-proxy-kubernetes-dashboard","text":"This example will show you how to deploy oauth2_proxy into a Kubernetes cluster and use it to protect the Kubernetes Dashboard using github as oAuth2 provider","title":"Example: OAuth2 Proxy + Kubernetes-Dashboard"},{"location":"examples/auth/oauth-external-auth/#prepare","text":"Install the kubernetes dashboard kubectl create -f https://raw.githubusercontent.com/kubernetes/kops/master/addons/kubernetes-dashboard/v1.10.1.yaml Create a custom Github OAuth application Homepage URL is the FQDN in the Ingress rule, like https://foo.bar.com Authorization callback URL is the same as the base FQDN plus /oauth2 , like https://foo.bar.com/oauth2 Configure oauth2_proxy values in the file oauth2-proxy.yaml with the values: OAUTH2_PROXY_CLIENT_ID with the github <Client ID> OAUTH2_PROXY_CLIENT_SECRET with the github <Client Secret> OAUTH2_PROXY_COOKIE_SECRET with value of python -c 'import os,base64; print(base64.b64encode(os.urandom(16)).decode(\"ascii\"))' Customize the contents of the file dashboard-ingress.yaml : Replace __INGRESS_HOST__ with a valid FQDN and __INGRESS_SECRET__ with a Secret with a valid SSL certificate. Deploy the oauth2 proxy and the ingress rules running: $ kubectl create -f oauth2-proxy.yaml,dashboard-ingress.yaml Test the oauth integration accessing the configured URL, like https://foo.bar.com","title":"Prepare"},{"location":"examples/customization/configuration-snippets/","text":"Configuration Snippets \u00b6 Ingress \u00b6 The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at this example . $ kubectl apply -f ingress.yaml Test \u00b6 Check if the contents of the annotation are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Configuration Snippets"},{"location":"examples/customization/configuration-snippets/#configuration-snippets","text":"","title":"Configuration Snippets"},{"location":"examples/customization/configuration-snippets/#ingress","text":"The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at this example . $ kubectl apply -f ingress.yaml","title":"Ingress"},{"location":"examples/customization/configuration-snippets/#test","text":"Check if the contents of the annotation are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/custom-configuration/","text":"Custom Configuration \u00b6 Using a ConfigMap is possible to customize the NGINX configuration For example, if we want to change the timeouts we need to create a ConfigMap: $ cat configmap.yaml apiVersion: v1 data: proxy-connect-timeout: \"10\" proxy-read-timeout: \"120\" proxy-send-timeout: \"120\" kind: ConfigMap metadata: name: ingress-nginx-controller curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-configuration/configmap.yaml \\ | kubectl apply -f - If the Configmap it is updated, NGINX will be reloaded with the new configuration.","title":"Custom Configuration"},{"location":"examples/customization/custom-configuration/#custom-configuration","text":"Using a ConfigMap is possible to customize the NGINX configuration For example, if we want to change the timeouts we need to create a ConfigMap: $ cat configmap.yaml apiVersion: v1 data: proxy-connect-timeout: \"10\" proxy-read-timeout: \"120\" proxy-send-timeout: \"120\" kind: ConfigMap metadata: name: ingress-nginx-controller curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-configuration/configmap.yaml \\ | kubectl apply -f - If the Configmap it is updated, NGINX will be reloaded with the new configuration.","title":"Custom Configuration"},{"location":"examples/customization/custom-errors/","text":"Custom Errors \u00b6 This example demonstrates how to use a custom backend to render custom error pages. Customized default backend \u00b6 First, create the custom default-backend . It will be used by the Ingress controller later on. $ kubectl create -f custom-default-backend.yaml service \"nginx-errors\" created deployment.apps \"nginx-errors\" created This should have created a Deployment and a Service with the name nginx-errors . $ kubectl get deploy,svc NAME DESIRED CURRENT READY AGE deployment.apps/nginx-errors 1 1 1 10s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/nginx-errors ClusterIP 10.0.0.12 <none> 80/TCP 10s Ingress controller configuration \u00b6 If you do not already have an instance of the NGINX Ingress controller running, deploy it according to the deployment guide , then follow these steps: Edit the ingress-nginx-controller Deployment and set the value of the --default-backend-service flag to the name of the newly created error backend. Edit the ingress-nginx-controller ConfigMap and create the key custom-http-errors with a value of 404,503 . Take note of the IP address assigned to the NGINX Ingress controller Service. $ kubectl get svc ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE ingress-nginx ClusterIP 10.0.0.13 <none> 80/TCP,443/TCP 10m Note The ingress-nginx Service is of type ClusterIP in this example. This may vary depending on your environment. Make sure you can use the Service to reach NGINX before proceeding with the rest of this example. Testing error pages \u00b6 Let us send a couple of HTTP requests using cURL and validate everything is working as expected. A request to the default backend returns a 404 error with a custom message: $ curl -D- http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:11:24 GMT Content-Type: */* Transfer-Encoding: chunked Connection: keep-alive <span>The page you're looking for could not be found.</span> A request with a custom Accept header returns the corresponding document type (JSON): $ curl -D- -H 'Accept: application/json' http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:12:36 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding { \"message\": \"The page you're looking for could not be found\" } To go further with this example, feel free to deploy your own applications and Ingress objects, and validate that the responses are still in the correct format when a backend returns 503 (eg. if you scale a Deployment down to 0 replica).","title":"Custom Errors"},{"location":"examples/customization/custom-errors/#custom-errors","text":"This example demonstrates how to use a custom backend to render custom error pages.","title":"Custom Errors"},{"location":"examples/customization/custom-errors/#customized-default-backend","text":"First, create the custom default-backend . It will be used by the Ingress controller later on. $ kubectl create -f custom-default-backend.yaml service \"nginx-errors\" created deployment.apps \"nginx-errors\" created This should have created a Deployment and a Service with the name nginx-errors . $ kubectl get deploy,svc NAME DESIRED CURRENT READY AGE deployment.apps/nginx-errors 1 1 1 10s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/nginx-errors ClusterIP 10.0.0.12 <none> 80/TCP 10s","title":"Customized default backend"},{"location":"examples/customization/custom-errors/#ingress-controller-configuration","text":"If you do not already have an instance of the NGINX Ingress controller running, deploy it according to the deployment guide , then follow these steps: Edit the ingress-nginx-controller Deployment and set the value of the --default-backend-service flag to the name of the newly created error backend. Edit the ingress-nginx-controller ConfigMap and create the key custom-http-errors with a value of 404,503 . Take note of the IP address assigned to the NGINX Ingress controller Service. $ kubectl get svc ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE ingress-nginx ClusterIP 10.0.0.13 <none> 80/TCP,443/TCP 10m Note The ingress-nginx Service is of type ClusterIP in this example. This may vary depending on your environment. Make sure you can use the Service to reach NGINX before proceeding with the rest of this example.","title":"Ingress controller configuration"},{"location":"examples/customization/custom-errors/#testing-error-pages","text":"Let us send a couple of HTTP requests using cURL and validate everything is working as expected. A request to the default backend returns a 404 error with a custom message: $ curl -D- http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:11:24 GMT Content-Type: */* Transfer-Encoding: chunked Connection: keep-alive <span>The page you're looking for could not be found.</span> A request with a custom Accept header returns the corresponding document type (JSON): $ curl -D- -H 'Accept: application/json' http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:12:36 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding { \"message\": \"The page you're looking for could not be found\" } To go further with this example, feel free to deploy your own applications and Ingress objects, and validate that the responses are still in the correct format when a backend returns 503 (eg. if you scale a Deployment down to 0 replica).","title":"Testing error pages"},{"location":"examples/customization/custom-headers/","text":"Custom Headers \u00b6 This example demonstrates configuration of the nginx ingress controller via a ConfigMap to pass a custom list of headers to the upstream server. custom-headers.yaml defines a ConfigMap in the ingress-nginx namespace named custom-headers , holding several custom X-prefixed HTTP headers. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/custom-headers.yaml configmap.yaml defines a ConfigMap in the ingress-nginx namespace named ingress-nginx-controller . This controls the global configuration of the ingress controller, and already exists in a standard installation. The key proxy-set-headers is set to cite the previously-created ingress-nginx/custom-headers ConfigMap. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/configmap.yaml The nginx ingress controller will read the ingress-nginx/ingress-nginx-controller ConfigMap, find the proxy-set-headers key, read HTTP headers from the ingress-nginx/custom-headers ConfigMap, and include those HTTP headers in all requests flowing from nginx to the backends. Test \u00b6 Check the contents of the ConfigMaps are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n ingress-nginx -- cat /etc/nginx/nginx.conf","title":"Custom Headers"},{"location":"examples/customization/custom-headers/#custom-headers","text":"This example demonstrates configuration of the nginx ingress controller via a ConfigMap to pass a custom list of headers to the upstream server. custom-headers.yaml defines a ConfigMap in the ingress-nginx namespace named custom-headers , holding several custom X-prefixed HTTP headers. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/custom-headers.yaml configmap.yaml defines a ConfigMap in the ingress-nginx namespace named ingress-nginx-controller . This controls the global configuration of the ingress controller, and already exists in a standard installation. The key proxy-set-headers is set to cite the previously-created ingress-nginx/custom-headers ConfigMap. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/configmap.yaml The nginx ingress controller will read the ingress-nginx/ingress-nginx-controller ConfigMap, find the proxy-set-headers key, read HTTP headers from the ingress-nginx/custom-headers ConfigMap, and include those HTTP headers in all requests flowing from nginx to the backends.","title":"Custom Headers"},{"location":"examples/customization/custom-headers/#test","text":"Check the contents of the ConfigMaps are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n ingress-nginx -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/external-auth-headers/","text":"External authentication, authentication service response headers propagation \u00b6 This example demonstrates propagation of selected authentication service response headers to backend service. Sample configuration includes: Sample authentication service producing several response headers Authentication logic is based on HTTP header: requests with header User containing string internal are considered authenticated After successful authentication service generates response headers UserID and UserRole Sample echo service displaying header information Two ingress objects pointing to echo service Public, which allows access from unauthenticated users Private, which allows access from authenticated users only You can deploy the controller as follows: $ kubectl create -f deploy/ deployment \"demo-auth-service\" created service \"demo-auth-service\" created ingress \"demo-auth-service\" created deployment \"demo-echo-service\" created service \"demo-echo-service\" created ingress \"public-demo-echo-service\" created ingress \"secure-demo-echo-service\" created $ kubectl get po NAME READY STATUS RESTARTS AGE demo-auth-service-2769076528-7g9mh 1/1 Running 0 30s demo-echo-service-3636052215-3vw8c 1/1 Running 0 29s kubectl get ing NAME HOSTS ADDRESS PORTS AGE public-demo-echo-service public-demo-echo-service.kube.local 80 1m secure-demo-echo-service secure-demo-echo-service.kube.local 80 1m Test 1: public service with no auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:21 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 20 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: , UserRole: Test 2: secure service with no auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 403 Forbidden < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:18:48 GMT < Content-Type: text/html < Content-Length: 170 < Connection: keep-alive < <html> <head><title>403 Forbidden</title></head> <body bgcolor=\"white\"> <center><h1>403 Forbidden</h1></center> <hr><center>nginx/1.11.10</center> </body> </html> * Connection #0 to host 192.168.99.100 left intact Test 3: public service with valid auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:59 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 44 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 1443635317331776148, UserRole: admin Test 4: secure service with valid auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:17:23 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 43 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 605394647632969758, UserRole: admin","title":"External authentication"},{"location":"examples/customization/external-auth-headers/#external-authentication-authentication-service-response-headers-propagation","text":"This example demonstrates propagation of selected authentication service response headers to backend service. Sample configuration includes: Sample authentication service producing several response headers Authentication logic is based on HTTP header: requests with header User containing string internal are considered authenticated After successful authentication service generates response headers UserID and UserRole Sample echo service displaying header information Two ingress objects pointing to echo service Public, which allows access from unauthenticated users Private, which allows access from authenticated users only You can deploy the controller as follows: $ kubectl create -f deploy/ deployment \"demo-auth-service\" created service \"demo-auth-service\" created ingress \"demo-auth-service\" created deployment \"demo-echo-service\" created service \"demo-echo-service\" created ingress \"public-demo-echo-service\" created ingress \"secure-demo-echo-service\" created $ kubectl get po NAME READY STATUS RESTARTS AGE demo-auth-service-2769076528-7g9mh 1/1 Running 0 30s demo-echo-service-3636052215-3vw8c 1/1 Running 0 29s kubectl get ing NAME HOSTS ADDRESS PORTS AGE public-demo-echo-service public-demo-echo-service.kube.local 80 1m secure-demo-echo-service secure-demo-echo-service.kube.local 80 1m Test 1: public service with no auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:21 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 20 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: , UserRole: Test 2: secure service with no auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 403 Forbidden < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:18:48 GMT < Content-Type: text/html < Content-Length: 170 < Connection: keep-alive < <html> <head><title>403 Forbidden</title></head> <body bgcolor=\"white\"> <center><h1>403 Forbidden</h1></center> <hr><center>nginx/1.11.10</center> </body> </html> * Connection #0 to host 192.168.99.100 left intact Test 3: public service with valid auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:59 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 44 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 1443635317331776148, UserRole: admin Test 4: secure service with valid auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:17:23 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 43 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 605394647632969758, UserRole: admin","title":"External authentication, authentication service response headers propagation"},{"location":"examples/customization/ssl-dh-param/","text":"Custom DH parameters for perfect forward secrecy \u00b6 This example aims to demonstrate the deployment of an nginx ingress controller and use a ConfigMap to configure custom Diffie-Hellman parameters file to help with \"Perfect Forward Secrecy\". Custom configuration \u00b6 $ cat configmap.yaml apiVersion: v1 data: ssl-dh-param: \"ingress-nginx/lb-dhparam\" kind: ConfigMap metadata: name: ingress-nginx-controller namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f configmap.yaml Custom DH parameters secret \u00b6 $ > openssl dhparam 4096 2 > /dev/null | base64 LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ... $ cat ssl-dh-param.yaml apiVersion: v1 data: dhparam.pem: \"LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ...\" kind: Secret metadata: name: lb-dhparam namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f ssl-dh-param.yaml Test \u00b6 Check the contents of the configmap is present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Custom DH parameters for perfect forward secrecy"},{"location":"examples/customization/ssl-dh-param/#custom-dh-parameters-for-perfect-forward-secrecy","text":"This example aims to demonstrate the deployment of an nginx ingress controller and use a ConfigMap to configure custom Diffie-Hellman parameters file to help with \"Perfect Forward Secrecy\".","title":"Custom DH parameters for perfect forward secrecy"},{"location":"examples/customization/ssl-dh-param/#custom-configuration","text":"$ cat configmap.yaml apiVersion: v1 data: ssl-dh-param: \"ingress-nginx/lb-dhparam\" kind: ConfigMap metadata: name: ingress-nginx-controller namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f configmap.yaml","title":"Custom configuration"},{"location":"examples/customization/ssl-dh-param/#custom-dh-parameters-secret","text":"$ > openssl dhparam 4096 2 > /dev/null | base64 LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ... $ cat ssl-dh-param.yaml apiVersion: v1 data: dhparam.pem: \"LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ...\" kind: Secret metadata: name: lb-dhparam namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f ssl-dh-param.yaml","title":"Custom DH parameters secret"},{"location":"examples/customization/ssl-dh-param/#test","text":"Check the contents of the configmap is present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/sysctl/","text":"Sysctl tuning \u00b6 This example aims to demonstrate the use of an Init Container to adjust sysctl default values using kubectl patch kubectl patch deployment -n ingress-nginx nginx-ingress-controller \\ --patch=\"$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/sysctl/patch.json)\" Changes: Backlog Queue setting net.core.somaxconn from 128 to 32768 Ephemeral Ports setting net.ipv4.ip_local_port_range from 32768 60999 to 1024 65000 In a post from the NGINX blog , it is possible to see an explanation for the changes.","title":"Sysctl tuning"},{"location":"examples/customization/sysctl/#sysctl-tuning","text":"This example aims to demonstrate the use of an Init Container to adjust sysctl default values using kubectl patch kubectl patch deployment -n ingress-nginx nginx-ingress-controller \\ --patch=\"$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/sysctl/patch.json)\" Changes: Backlog Queue setting net.core.somaxconn from 128 to 32768 Ephemeral Ports setting net.ipv4.ip_local_port_range from 32768 60999 to 1024 65000 In a post from the NGINX blog , it is possible to see an explanation for the changes.","title":"Sysctl tuning"},{"location":"examples/docker-registry/","text":"Docker registry \u00b6 This example demonstrates how to deploy a docker registry in the cluster and configure Ingress enable access from Internet Deployment \u00b6 First we deploy the docker registry in the cluster: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/deployment.yaml Important DO NOT RUN THIS IN PRODUCTION This deployment uses emptyDir in the volumeMount which means the contents of the registry will be deleted when the pod dies. The next required step is creation of the ingress rules. To do this we have two options: with and without TLS Without TLS \u00b6 Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-without-tls.yaml Important Running a docker registry without TLS requires we configure our local docker daemon with the insecure registry flag. Please check deploy a plain http registry With TLS \u00b6 Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-with-tls.yaml Deploy kube lego use Let's Encrypt certificates or edit the ingress rule to use a secret with an existing SSL certificate. Testing \u00b6 To test the registry is working correctly we download a known image from docker hub , create a tag pointing to the new registry and upload the image: docker pull ubuntu:16.04 docker tag ubuntu:16.04 `registry.<your domain>/ubuntu:16.04` docker push `registry.<your domain>/ubuntu:16.04` Please replace registry.<your domain> with your domain.","title":"Docker registry"},{"location":"examples/docker-registry/#docker-registry","text":"This example demonstrates how to deploy a docker registry in the cluster and configure Ingress enable access from Internet","title":"Docker registry"},{"location":"examples/docker-registry/#deployment","text":"First we deploy the docker registry in the cluster: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/deployment.yaml Important DO NOT RUN THIS IN PRODUCTION This deployment uses emptyDir in the volumeMount which means the contents of the registry will be deleted when the pod dies. The next required step is creation of the ingress rules. To do this we have two options: with and without TLS","title":"Deployment"},{"location":"examples/docker-registry/#without-tls","text":"Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-without-tls.yaml Important Running a docker registry without TLS requires we configure our local docker daemon with the insecure registry flag. Please check deploy a plain http registry","title":"Without TLS"},{"location":"examples/docker-registry/#with-tls","text":"Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-with-tls.yaml Deploy kube lego use Let's Encrypt certificates or edit the ingress rule to use a secret with an existing SSL certificate.","title":"With TLS"},{"location":"examples/docker-registry/#testing","text":"To test the registry is working correctly we download a known image from docker hub , create a tag pointing to the new registry and upload the image: docker pull ubuntu:16.04 docker tag ubuntu:16.04 `registry.<your domain>/ubuntu:16.04` docker push `registry.<your domain>/ubuntu:16.04` Please replace registry.<your domain> with your domain.","title":"Testing"},{"location":"examples/grpc/","text":"gRPC \u00b6 This example demonstrates how to route traffic to a gRPC service through the nginx controller. Prerequisites \u00b6 You have a kubernetes cluster running. You have a domain name such as example.com that is configured to route traffic to the ingress controller. Replace references to fortune-teller.stack.build (the domain name used in this example) to your own domain name (you're also responsible for provisioning an SSL certificate for the ingress). You have the nginx-ingress controller installed in typical fashion (must be at least quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0 for grpc support. You have a backend application running a gRPC server and listening for TCP traffic. If you prefer, you can use the fortune-teller application provided here as an example. Step 1: kubernetes Deployment \u00b6 $ kubectl create -f app.yaml This is a standard kubernetes deployment object. It is running a grpc service listening on port 50051 . The sample application fortune-teller-app is a grpc server implemented in go. Here's the stripped-down implementation: func main () { grpcServer := grpc . NewServer () fortune . RegisterFortuneTellerServer ( grpcServer , & FortuneTeller {}) lis , _ := net . Listen ( \"tcp\" , \":50051\" ) grpcServer . Serve ( lis ) } The takeaway is that we are not doing any TLS configuration on the server (as we are terminating TLS at the ingress level, grpc traffic will travel unencrypted inside the cluster and arrive \"insecure\"). For your own application you may or may not want to do this. If you prefer to forward encrypted traffic to your POD and terminate TLS at the gRPC server itself, add the ingress annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPCS\" . Step 2: the kubernetes Service \u00b6 $ kubectl create -f svc.yaml Here we have a typical service. Nothing special, just routing traffic to the backend application on port 50051 . Step 3: the kubernetes Ingress \u00b6 $ kubectl create -f ingress.yaml A few things to note: We've tagged the ingress with the annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPC\" . This is the magic ingredient that sets up the appropriate nginx configuration to route http/2 traffic to our service. We're terminating TLS at the ingress and have configured an SSL certificate fortune-teller.stack.build . The ingress matches traffic arriving as https://fortune-teller.stack.build:443 and routes unencrypted messages to our kubernetes service. Step 4: test the connection \u00b6 Once we've applied our configuration to kubernetes, it's time to test that we can actually talk to the backend. To do this, we'll use the grpcurl utility: $ grpcurl fortune-teller.stack.build:443 build.stack.fortune.FortuneTeller/Predict { \"message\" : \"Let us endeavor so to live that when we come to die even the undertaker will be sorry.\\n\\t\\t-- Mark Twain, \\\"Pudd'nhead Wilson's Calendar\\\"\" } Debugging Hints \u00b6 Obviously, watch the logs on your app. Watch the logs for the nginx-ingress-controller (increasing verbosity as needed). Double-check your address and ports. Set the GODEBUG=http2debug=2 environment variable to get detailed http/2 logging on the client and/or server. Study RFC 7540 (http/2) https://tools.ietf.org/html/rfc7540 . If you are developing public gRPC endpoints, check out https://proto.stack.build, a protocol buffer / gRPC build service that can use to help make it easier for your users to consume your API. See also the specific GRPC settings of NGINX: https://nginx.org/en/docs/http/ngx_http_grpc_module.html Notes on using response/request streams \u00b6 If your server does only response streaming and you expect a stream to be open longer than 60 seconds, you will have to change the grpc_read_timeout to acommodate for this. If your service does only request streaming and you expect a stream to be open longer than 60 seconds, you have to change the grpc_send_timeout and the client_body_timeout . If you do both response and request streaming with an open stream longer than 60 seconds, you have to change all three timeouts: grpc_read_timeout , grpc_send_timeout and client_body_timeout . Values for the timeouts must be specified as e.g. \"1200s\" . On the most recent versions of nginx-ingress, changing these timeouts requires using the nginx.ingress.kubernetes.io/server-snippet annotation. There are plans for future releases to allow using the Kubernetes annotations to define each timeout seperately.","title":"gRPC"},{"location":"examples/grpc/#grpc","text":"This example demonstrates how to route traffic to a gRPC service through the nginx controller.","title":"gRPC"},{"location":"examples/grpc/#prerequisites","text":"You have a kubernetes cluster running. You have a domain name such as example.com that is configured to route traffic to the ingress controller. Replace references to fortune-teller.stack.build (the domain name used in this example) to your own domain name (you're also responsible for provisioning an SSL certificate for the ingress). You have the nginx-ingress controller installed in typical fashion (must be at least quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0 for grpc support. You have a backend application running a gRPC server and listening for TCP traffic. If you prefer, you can use the fortune-teller application provided here as an example.","title":"Prerequisites"},{"location":"examples/grpc/#step-1-kubernetes-deployment","text":"$ kubectl create -f app.yaml This is a standard kubernetes deployment object. It is running a grpc service listening on port 50051 . The sample application fortune-teller-app is a grpc server implemented in go. Here's the stripped-down implementation: func main () { grpcServer := grpc . NewServer () fortune . RegisterFortuneTellerServer ( grpcServer , & FortuneTeller {}) lis , _ := net . Listen ( \"tcp\" , \":50051\" ) grpcServer . Serve ( lis ) } The takeaway is that we are not doing any TLS configuration on the server (as we are terminating TLS at the ingress level, grpc traffic will travel unencrypted inside the cluster and arrive \"insecure\"). For your own application you may or may not want to do this. If you prefer to forward encrypted traffic to your POD and terminate TLS at the gRPC server itself, add the ingress annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPCS\" .","title":"Step 1: kubernetes Deployment"},{"location":"examples/grpc/#step-2-the-kubernetes-service","text":"$ kubectl create -f svc.yaml Here we have a typical service. Nothing special, just routing traffic to the backend application on port 50051 .","title":"Step 2: the kubernetes Service"},{"location":"examples/grpc/#step-3-the-kubernetes-ingress","text":"$ kubectl create -f ingress.yaml A few things to note: We've tagged the ingress with the annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPC\" . This is the magic ingredient that sets up the appropriate nginx configuration to route http/2 traffic to our service. We're terminating TLS at the ingress and have configured an SSL certificate fortune-teller.stack.build . The ingress matches traffic arriving as https://fortune-teller.stack.build:443 and routes unencrypted messages to our kubernetes service.","title":"Step 3: the kubernetes Ingress"},{"location":"examples/grpc/#step-4-test-the-connection","text":"Once we've applied our configuration to kubernetes, it's time to test that we can actually talk to the backend. To do this, we'll use the grpcurl utility: $ grpcurl fortune-teller.stack.build:443 build.stack.fortune.FortuneTeller/Predict { \"message\" : \"Let us endeavor so to live that when we come to die even the undertaker will be sorry.\\n\\t\\t-- Mark Twain, \\\"Pudd'nhead Wilson's Calendar\\\"\" }","title":"Step 4: test the connection"},{"location":"examples/grpc/#debugging-hints","text":"Obviously, watch the logs on your app. Watch the logs for the nginx-ingress-controller (increasing verbosity as needed). Double-check your address and ports. Set the GODEBUG=http2debug=2 environment variable to get detailed http/2 logging on the client and/or server. Study RFC 7540 (http/2) https://tools.ietf.org/html/rfc7540 . If you are developing public gRPC endpoints, check out https://proto.stack.build, a protocol buffer / gRPC build service that can use to help make it easier for your users to consume your API. See also the specific GRPC settings of NGINX: https://nginx.org/en/docs/http/ngx_http_grpc_module.html","title":"Debugging Hints"},{"location":"examples/grpc/#notes-on-using-responserequest-streams","text":"If your server does only response streaming and you expect a stream to be open longer than 60 seconds, you will have to change the grpc_read_timeout to acommodate for this. If your service does only request streaming and you expect a stream to be open longer than 60 seconds, you have to change the grpc_send_timeout and the client_body_timeout . If you do both response and request streaming with an open stream longer than 60 seconds, you have to change all three timeouts: grpc_read_timeout , grpc_send_timeout and client_body_timeout . Values for the timeouts must be specified as e.g. \"1200s\" . On the most recent versions of nginx-ingress, changing these timeouts requires using the nginx.ingress.kubernetes.io/server-snippet annotation. There are plans for future releases to allow using the Kubernetes annotations to define each timeout seperately.","title":"Notes on using response/request streams"},{"location":"examples/multi-tls/","text":"Multi TLS certificate termination \u00b6 This example uses 2 different certificates to terminate SSL for 2 hostnames. Deploy the controller by creating the rc in the parent dir Create tls secrets for foo.bar.com and bar.baz.com as indicated in the yaml Create multi-tls.yaml This should generate a segment like: $ kubectl exec -it nginx-ingress-controller-6vwd1 -- cat /etc/nginx/nginx.conf | grep \"foo.bar.com\" -B 7 -A 35 server { listen 80; listen 443 ssl http2; ssl_certificate /etc/nginx-ssl/default-foobar.pem; ssl_certificate_key /etc/nginx-ssl/default-foobar.pem; server_name foo.bar.com; if ($scheme = http) { return 301 https://$host$request_uri; } location / { proxy_set_header Host $host; # Pass Real IP proxy_set_header X-Real-IP $remote_addr; # Allow websocket connections proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Proto $pass_access_scheme; proxy_connect_timeout 5s; proxy_send_timeout 60s; proxy_read_timeout 60s; proxy_redirect off; proxy_buffering off; proxy_http_version 1.1; proxy_pass http://default-http-svc-80; } And you should be able to reach your nginx service or http-svc service using a hostname switch: $ kubectl get ing NAME RULE BACKEND ADDRESS AGE foo-tls - 104.154.30.67 13m foo.bar.com / http-svc:80 bar.baz.com / nginx:80 $ curl https://104.154.30.67 -H 'Host:foo.bar.com' -k CLIENT VALUES: client_address=10.245.0.6 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close host=foo.bar.com user-agent=curl/7.35.0 x-forwarded-for=10.245.0.1 x-forwarded-host=foo.bar.com x-forwarded-proto=https $ curl https://104.154.30.67 -H 'Host:bar.baz.com' -k <!DOCTYPE html> <html> <head> <title>Welcome to nginx on Debian!</title> $ curl 104 .154.30.67 default backend - 404","title":"Multi TLS certificate termination"},{"location":"examples/multi-tls/#multi-tls-certificate-termination","text":"This example uses 2 different certificates to terminate SSL for 2 hostnames. Deploy the controller by creating the rc in the parent dir Create tls secrets for foo.bar.com and bar.baz.com as indicated in the yaml Create multi-tls.yaml This should generate a segment like: $ kubectl exec -it nginx-ingress-controller-6vwd1 -- cat /etc/nginx/nginx.conf | grep \"foo.bar.com\" -B 7 -A 35 server { listen 80; listen 443 ssl http2; ssl_certificate /etc/nginx-ssl/default-foobar.pem; ssl_certificate_key /etc/nginx-ssl/default-foobar.pem; server_name foo.bar.com; if ($scheme = http) { return 301 https://$host$request_uri; } location / { proxy_set_header Host $host; # Pass Real IP proxy_set_header X-Real-IP $remote_addr; # Allow websocket connections proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Proto $pass_access_scheme; proxy_connect_timeout 5s; proxy_send_timeout 60s; proxy_read_timeout 60s; proxy_redirect off; proxy_buffering off; proxy_http_version 1.1; proxy_pass http://default-http-svc-80; } And you should be able to reach your nginx service or http-svc service using a hostname switch: $ kubectl get ing NAME RULE BACKEND ADDRESS AGE foo-tls - 104.154.30.67 13m foo.bar.com / http-svc:80 bar.baz.com / nginx:80 $ curl https://104.154.30.67 -H 'Host:foo.bar.com' -k CLIENT VALUES: client_address=10.245.0.6 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close host=foo.bar.com user-agent=curl/7.35.0 x-forwarded-for=10.245.0.1 x-forwarded-host=foo.bar.com x-forwarded-proto=https $ curl https://104.154.30.67 -H 'Host:bar.baz.com' -k <!DOCTYPE html> <html> <head> <title>Welcome to nginx on Debian!</title> $ curl 104 .154.30.67 default backend - 404","title":"Multi TLS certificate termination"},{"location":"examples/psp/","text":"Pod Security Policy (PSP) \u00b6 In most clusters today, by default, all resources (e.g. Deployments and ReplicatSets) have permissions to create pods. Kubernetes however provides a more fine-grained authorization policy called Pod Security Policy (PSP) . PSP allows the cluster owner to define the permission of each object, for example creating a pod. If you have PSP enabled on the cluster, and you deploy ingress-nginx, you will need to provide the Deployment with the permissions to create pods. Before applying any objects, first apply the PSP permissions by running: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/psp/psp.yaml Note: PSP permissions must be granted before to the creation of the Deployment and the ReplicaSet.","title":"Pod Security Policy (PSP)"},{"location":"examples/psp/#pod-security-policy-psp","text":"In most clusters today, by default, all resources (e.g. Deployments and ReplicatSets) have permissions to create pods. Kubernetes however provides a more fine-grained authorization policy called Pod Security Policy (PSP) . PSP allows the cluster owner to define the permission of each object, for example creating a pod. If you have PSP enabled on the cluster, and you deploy ingress-nginx, you will need to provide the Deployment with the permissions to create pods. Before applying any objects, first apply the PSP permissions by running: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/psp/psp.yaml Note: PSP permissions must be granted before to the creation of the Deployment and the ReplicaSet.","title":"Pod Security Policy (PSP)"},{"location":"examples/rewrite/","text":"Rewrite \u00b6 This example demonstrates how to use the Rewrite annotations Prerequisites \u00b6 You will need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster. Deployment \u00b6 Rewriting can be controlled using the following annotations: Name Description Values nginx.ingress.kubernetes.io/rewrite-target Target URI where the traffic must be redirected string nginx.ingress.kubernetes.io/ssl-redirect Indicates if the location section is accessible SSL only (defaults to True when Ingress contains a Certificate) bool nginx.ingress.kubernetes.io/force-ssl-redirect Forces the redirection to HTTPS even if the Ingress is not TLS Enabled bool nginx.ingress.kubernetes.io/app-root Defines the Application Root that the Controller must redirect if it's in '/' context string nginx.ingress.kubernetes.io/use-regex Indicates if the paths defined on an Ingress use regular expressions bool Examples \u00b6 Rewrite Target \u00b6 Attention Starting in Version 0.22.0, ingress definitions using the annotation nginx.ingress.kubernetes.io/rewrite-target are not backwards compatible with previous versions. In Version 0.22.0 and beyond, any substrings within the request URI that need to be passed to the rewritten path must explicitly be defined in a capture group . Note Captured groups are saved in numbered placeholders, chronologically, in the form $1 , $2 ... $n . These placeholders can be used as parameters in the rewrite-target annotation. Create an Ingress rule with a rewrite annotation: $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/rewrite-target: /$2 name: rewrite namespace: default spec: rules: - host: rewrite.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: /something(/|$)(.*) ' | kubectl create -f - In this ingress definition, any characters captured by (.*) will be assigned to the placeholder $2 , which is then used as a parameter in the rewrite-target annotation. For example, the ingress definition above will result in the following rewrites: rewrite.bar.com/something rewrites to rewrite.bar.com/ rewrite.bar.com/something/ rewrites to rewrite.bar.com/ rewrite.bar.com/something/new rewrites to rewrite.bar.com/new App Root \u00b6 Create an Ingress rule with a app-root annotation: $ echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/app-root: /app1 name: approot namespace: default spec: rules: - host: approot.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / \" | kubectl create -f - Check the rewrite is working $ curl -I -k http://approot.bar.com/ HTTP/1.1 302 Moved Temporarily Server: nginx/1.11.10 Date: Mon, 13 Mar 2017 14:57:15 GMT Content-Type: text/html Content-Length: 162 Location: http://stickyingress.example.com/app1 Connection: keep-alive","title":"Rewrite"},{"location":"examples/rewrite/#rewrite","text":"This example demonstrates how to use the Rewrite annotations","title":"Rewrite"},{"location":"examples/rewrite/#prerequisites","text":"You will need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster.","title":"Prerequisites"},{"location":"examples/rewrite/#deployment","text":"Rewriting can be controlled using the following annotations: Name Description Values nginx.ingress.kubernetes.io/rewrite-target Target URI where the traffic must be redirected string nginx.ingress.kubernetes.io/ssl-redirect Indicates if the location section is accessible SSL only (defaults to True when Ingress contains a Certificate) bool nginx.ingress.kubernetes.io/force-ssl-redirect Forces the redirection to HTTPS even if the Ingress is not TLS Enabled bool nginx.ingress.kubernetes.io/app-root Defines the Application Root that the Controller must redirect if it's in '/' context string nginx.ingress.kubernetes.io/use-regex Indicates if the paths defined on an Ingress use regular expressions bool","title":"Deployment"},{"location":"examples/rewrite/#examples","text":"","title":"Examples"},{"location":"examples/rewrite/#rewrite-target","text":"Attention Starting in Version 0.22.0, ingress definitions using the annotation nginx.ingress.kubernetes.io/rewrite-target are not backwards compatible with previous versions. In Version 0.22.0 and beyond, any substrings within the request URI that need to be passed to the rewritten path must explicitly be defined in a capture group . Note Captured groups are saved in numbered placeholders, chronologically, in the form $1 , $2 ... $n . These placeholders can be used as parameters in the rewrite-target annotation. Create an Ingress rule with a rewrite annotation: $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/rewrite-target: /$2 name: rewrite namespace: default spec: rules: - host: rewrite.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: /something(/|$)(.*) ' | kubectl create -f - In this ingress definition, any characters captured by (.*) will be assigned to the placeholder $2 , which is then used as a parameter in the rewrite-target annotation. For example, the ingress definition above will result in the following rewrites: rewrite.bar.com/something rewrites to rewrite.bar.com/ rewrite.bar.com/something/ rewrites to rewrite.bar.com/ rewrite.bar.com/something/new rewrites to rewrite.bar.com/new","title":"Rewrite Target"},{"location":"examples/rewrite/#app-root","text":"Create an Ingress rule with a app-root annotation: $ echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/app-root: /app1 name: approot namespace: default spec: rules: - host: approot.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / \" | kubectl create -f - Check the rewrite is working $ curl -I -k http://approot.bar.com/ HTTP/1.1 302 Moved Temporarily Server: nginx/1.11.10 Date: Mon, 13 Mar 2017 14:57:15 GMT Content-Type: text/html Content-Length: 162 Location: http://stickyingress.example.com/app1 Connection: keep-alive","title":"App Root"},{"location":"examples/static-ip/","text":"Static IPs \u00b6 This example demonstrates how to assign a static-ip to an Ingress on through the Nginx controller. Prerequisites \u00b6 You need a TLS cert and a test HTTP service for this example. You will also need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster. Acquiring an IP \u00b6 Since instances of the nginx controller actually run on nodes in your cluster, by default nginx Ingresses will only get static IPs if your cloudprovider supports static IP assignments to nodes. On GKE/GCE for example, even though nodes get static IPs, the IPs are not retained across upgrade. To acquire a static IP for the nginx ingress controller, simply put it behind a Service of Type=LoadBalancer . First, create a loadbalancer Service and wait for it to acquire an IP $ kubectl create -f static-ip-svc.yaml service \"nginx-ingress-lb\" created $ kubectl get svc nginx-ingress-lb NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE nginx-ingress-lb 10.0.138.113 104.154.109.191 80:31457/TCP,443:32240/TCP 15m then, update the ingress controller so it adopts the static IP of the Service by passing the --publish-service flag (the example yaml used in the next step already has it set to \"nginx-ingress-lb\"). $ kubectl create -f nginx-ingress-controller.yaml deployment \"nginx-ingress-controller\" created Assigning the IP to an Ingress \u00b6 From here on every Ingress created with the ingress.class annotation set to nginx will get the IP allocated in the previous step $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing ingress-nginx NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m $ curl 104 .154.109.191 -kL CLIENT VALUES: client_address=10.180.1.25 command=GET real path=/ query=nil request_version=1.1 request_uri=http://104.154.109.191:8080/ ... Retaining the IP \u00b6 You can test retention by deleting the Ingress $ kubectl delete ing nginx-ingress ingress \"nginx-ingress\" deleted $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing nginx-ingress NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m Note that unlike the GCE Ingress, the same loadbalancer IP is shared amongst all Ingresses, because all requests are proxied through the same set of nginx controllers. Promote ephemeral to static IP \u00b6 To promote the allocated IP to static, you can update the Service manifest $ kubectl patch svc nginx-ingress-lb -p '{\"spec\": {\"loadBalancerIP\": \"104.154.109.191\"}}' \"nginx-ingress-lb\" patched and promote the IP to static (promotion works differently for cloudproviders, provided example is for GKE/GCE) ` $ gcloud compute addresses create nginx-ingress-lb --addresses 104 .154.109.191 --region us-central1 Created [https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb]. --- address: 104.154.109.191 creationTimestamp: '2017-01-31T16:34:50.089-08:00' description: '' id: '5208037144487826373' kind: compute#address name: nginx-ingress-lb region: us-central1 selfLink: https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb status: IN_USE users: - us-central1/forwardingRules/a09f6913ae80e11e6a8c542010af0000 Now even if the Service is deleted, the IP will persist, so you can recreate the Service with spec.loadBalancerIP set to 104.154.109.191 .","title":"Static IPs"},{"location":"examples/static-ip/#static-ips","text":"This example demonstrates how to assign a static-ip to an Ingress on through the Nginx controller.","title":"Static IPs"},{"location":"examples/static-ip/#prerequisites","text":"You need a TLS cert and a test HTTP service for this example. You will also need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster.","title":"Prerequisites"},{"location":"examples/static-ip/#acquiring-an-ip","text":"Since instances of the nginx controller actually run on nodes in your cluster, by default nginx Ingresses will only get static IPs if your cloudprovider supports static IP assignments to nodes. On GKE/GCE for example, even though nodes get static IPs, the IPs are not retained across upgrade. To acquire a static IP for the nginx ingress controller, simply put it behind a Service of Type=LoadBalancer . First, create a loadbalancer Service and wait for it to acquire an IP $ kubectl create -f static-ip-svc.yaml service \"nginx-ingress-lb\" created $ kubectl get svc nginx-ingress-lb NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE nginx-ingress-lb 10.0.138.113 104.154.109.191 80:31457/TCP,443:32240/TCP 15m then, update the ingress controller so it adopts the static IP of the Service by passing the --publish-service flag (the example yaml used in the next step already has it set to \"nginx-ingress-lb\"). $ kubectl create -f nginx-ingress-controller.yaml deployment \"nginx-ingress-controller\" created","title":"Acquiring an IP"},{"location":"examples/static-ip/#assigning-the-ip-to-an-ingress","text":"From here on every Ingress created with the ingress.class annotation set to nginx will get the IP allocated in the previous step $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing ingress-nginx NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m $ curl 104 .154.109.191 -kL CLIENT VALUES: client_address=10.180.1.25 command=GET real path=/ query=nil request_version=1.1 request_uri=http://104.154.109.191:8080/ ...","title":"Assigning the IP to an Ingress"},{"location":"examples/static-ip/#retaining-the-ip","text":"You can test retention by deleting the Ingress $ kubectl delete ing nginx-ingress ingress \"nginx-ingress\" deleted $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing nginx-ingress NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m Note that unlike the GCE Ingress, the same loadbalancer IP is shared amongst all Ingresses, because all requests are proxied through the same set of nginx controllers.","title":"Retaining the IP"},{"location":"examples/static-ip/#promote-ephemeral-to-static-ip","text":"To promote the allocated IP to static, you can update the Service manifest $ kubectl patch svc nginx-ingress-lb -p '{\"spec\": {\"loadBalancerIP\": \"104.154.109.191\"}}' \"nginx-ingress-lb\" patched and promote the IP to static (promotion works differently for cloudproviders, provided example is for GKE/GCE) ` $ gcloud compute addresses create nginx-ingress-lb --addresses 104 .154.109.191 --region us-central1 Created [https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb]. --- address: 104.154.109.191 creationTimestamp: '2017-01-31T16:34:50.089-08:00' description: '' id: '5208037144487826373' kind: compute#address name: nginx-ingress-lb region: us-central1 selfLink: https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb status: IN_USE users: - us-central1/forwardingRules/a09f6913ae80e11e6a8c542010af0000 Now even if the Service is deleted, the IP will persist, so you can recreate the Service with spec.loadBalancerIP set to 104.154.109.191 .","title":"Promote ephemeral to static IP"},{"location":"examples/tls-termination/","text":"TLS termination \u00b6 This example demonstrates how to terminate TLS through the nginx Ingress controller. Prerequisites \u00b6 You need a TLS cert and a test HTTP service for this example. Deployment \u00b6 Create a ingress.yaml file. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : nginx-test spec : tls : - hosts : - foo.bar.com # This assumes tls-secret exists and the SSL # certificate contains a CN for foo.bar.com secretName : tls-secret rules : - host : foo.bar.com http : paths : - path : / backend : # This assumes http-svc exists and routes to healthy endpoints serviceName : http-svc servicePort : 80 The following command instructs the controller to terminate traffic using the provided TLS cert, and forward un-encrypted HTTP traffic to the test HTTP service. kubectl apply -f ingress.yaml Validation \u00b6 You can confirm that the Ingress works. $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: 104.198.183.6 Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) TLS: tls-secret terminates Rules: Host Path Backends ---- ---- -------- * http-svc:80 (<none>) Annotations: Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal UPDATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal CREATE ip: 104.198.183.6 7s 7s 1 {nginx-ingress-controller } Warning MAPPING Ingress rule 'default/nginx-test' contains no path definition. Assuming / $ curl 104 .198.183.6 -L curl: (60) SSL certificate problem: self signed certificate More details here: http://curl.haxx.se/docs/sslcerts.html $ curl 104 .198.183.6 -Lk CLIENT VALUES: client_address=10.240.0.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://35.186.221.137:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=Keep-Alive host=35.186.221.137 user-agent=curl/7.46.0 via=1.1 google x-cloud-trace-context=f708ea7e369d4514fc90d51d7e27e91d/13322322294276298106 x-forwarded-for=104.132.0.80, 35.186.221.137 x-forwarded-proto=https BODY:","title":"TLS termination"},{"location":"examples/tls-termination/#tls-termination","text":"This example demonstrates how to terminate TLS through the nginx Ingress controller.","title":"TLS termination"},{"location":"examples/tls-termination/#prerequisites","text":"You need a TLS cert and a test HTTP service for this example.","title":"Prerequisites"},{"location":"examples/tls-termination/#deployment","text":"Create a ingress.yaml file. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : nginx-test spec : tls : - hosts : - foo.bar.com # This assumes tls-secret exists and the SSL # certificate contains a CN for foo.bar.com secretName : tls-secret rules : - host : foo.bar.com http : paths : - path : / backend : # This assumes http-svc exists and routes to healthy endpoints serviceName : http-svc servicePort : 80 The following command instructs the controller to terminate traffic using the provided TLS cert, and forward un-encrypted HTTP traffic to the test HTTP service. kubectl apply -f ingress.yaml","title":"Deployment"},{"location":"examples/tls-termination/#validation","text":"You can confirm that the Ingress works. $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: 104.198.183.6 Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) TLS: tls-secret terminates Rules: Host Path Backends ---- ---- -------- * http-svc:80 (<none>) Annotations: Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal UPDATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal CREATE ip: 104.198.183.6 7s 7s 1 {nginx-ingress-controller } Warning MAPPING Ingress rule 'default/nginx-test' contains no path definition. Assuming / $ curl 104 .198.183.6 -L curl: (60) SSL certificate problem: self signed certificate More details here: http://curl.haxx.se/docs/sslcerts.html $ curl 104 .198.183.6 -Lk CLIENT VALUES: client_address=10.240.0.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://35.186.221.137:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=Keep-Alive host=35.186.221.137 user-agent=curl/7.46.0 via=1.1 google x-cloud-trace-context=f708ea7e369d4514fc90d51d7e27e91d/13322322294276298106 x-forwarded-for=104.132.0.80, 35.186.221.137 x-forwarded-proto=https BODY:","title":"Validation"},{"location":"user-guide/basic-usage/","text":"Basic usage - host based routing \u00b6 ingress-nginx can be used for many use cases, inside various cloud provider and supports a lot of configurations. In this section you can find a common usage scenario where a single load balancer powered by ingress-nginx will route traffic to 2 different HTTP backend services based on the host name. First of all follow the instructions to install ingress-nginx. Then imagine that you need to expose 2 HTTP services already installed: myServiceA , myServiceB . Let's say that you want to expose the first at myServiceA.foo.org and the second at myServiceB.foo.org . One possible solution is to create two ingress resources: apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myservicea annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myservicea.foo.org http: paths: - path: / backend: serviceName: myservicea servicePort: 80 --- apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myserviceb annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myserviceb.foo.org http: paths: - path: / backend: serviceName: myserviceb servicePort: 80 When you apply this yaml, 2 ingress resources will be created managed by the ingress-nginx instance. Nginx is configured to automatically discover all ingress with the kubernetes.io/ingress.class: \"nginx\" annotation. Please note that the ingress resource should be placed inside the same namespace of the backend resource. On many cloud providers ingress-nginx will also create the corresponding Load Balancer resource. All you have to do is get the external IP and add a DNS A record inside your DNS provider that point myServiceA.foo.org and myServiceB.foo.org to the nginx external IP. Get the external IP by running: kubectl get services -n ingress-nginx","title":"Basic usage"},{"location":"user-guide/basic-usage/#basic-usage-host-based-routing","text":"ingress-nginx can be used for many use cases, inside various cloud provider and supports a lot of configurations. In this section you can find a common usage scenario where a single load balancer powered by ingress-nginx will route traffic to 2 different HTTP backend services based on the host name. First of all follow the instructions to install ingress-nginx. Then imagine that you need to expose 2 HTTP services already installed: myServiceA , myServiceB . Let's say that you want to expose the first at myServiceA.foo.org and the second at myServiceB.foo.org . One possible solution is to create two ingress resources: apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myservicea annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myservicea.foo.org http: paths: - path: / backend: serviceName: myservicea servicePort: 80 --- apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myserviceb annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myserviceb.foo.org http: paths: - path: / backend: serviceName: myserviceb servicePort: 80 When you apply this yaml, 2 ingress resources will be created managed by the ingress-nginx instance. Nginx is configured to automatically discover all ingress with the kubernetes.io/ingress.class: \"nginx\" annotation. Please note that the ingress resource should be placed inside the same namespace of the backend resource. On many cloud providers ingress-nginx will also create the corresponding Load Balancer resource. All you have to do is get the external IP and add a DNS A record inside your DNS provider that point myServiceA.foo.org and myServiceB.foo.org to the nginx external IP. Get the external IP by running: kubectl get services -n ingress-nginx","title":"Basic usage - host based routing"},{"location":"user-guide/cli-arguments/","text":"Command line arguments \u00b6 The following command line arguments are accepted by the Ingress controller executable. They are set in the container spec of the nginx-ingress-controller Deployment manifest Argument Description --add_dir_header If true, adds the file directory to the header --alsologtostderr log to standard error as well as files --annotations-prefix Prefix of the Ingress annotations specific to the NGINX controller. (default \"nginx.ingress.kubernetes.io\") --apiserver-host Address of the Kubernetes API server. Takes the form \"protocol://address:port\". If not specified, it is assumed the program runs inside a Kubernetes cluster and local discovery is attempted. --certificate-authority Path to a cert file for the certificate authority. This certificate is used only when the flag --apiserver-host is specified. --configmap Name of the ConfigMap containing custom global configurations for the controller. --default-backend-service Service used to serve HTTP requests not matching any known server name (catch-all). Takes the form \"namespace/name\". The controller configures NGINX to forward requests to the first port of this Service. --default-server-port Port to use for exposing the default server (catch-all). (default 8181) --default-ssl-certificate Secret containing a SSL certificate to be used by the default HTTPS server (catch-all). Takes the form \"namespace/name\". --disable-catch-all Disable support for catch-all Ingresses --election-id Election id to use for Ingress status updates. (default \"ingress-controller-leader\") --enable-metrics Enables the collection of NGINX metrics (default true) --enable-ssl-chain-completion Autocomplete SSL certificate chains with missing intermediate CA certificates. Certificates uploaded to Kubernetes must have the \"Authority Information Access\" X.509 v3 extension for this to succeed. --enable-ssl-passthrough Enable SSL Passthrough. --health-check-path URL path of the health check endpoint. Configured inside the NGINX status server. All requests received on the port defined by the healthz-port parameter are forwarded internally to this path. (default \"/healthz\") --health-check-timeout Time limit, in seconds, for a probe to health-check-path to succeed. (default 10) --healthz-port Port to use for the healthz endpoint. (default 10254) --http-port Port to use for servicing HTTP traffic. (default 80) --https-port Port to use for servicing HTTPS traffic. (default 443) --ingress-class Name of the ingress class this controller satisfies. The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.18.0 or higher or the annotation \"kubernetes.io/ingress.class\" (deprecated). If this parameter is not set, or set to the default value of \"nginx\", it will handle ingresses with either an empty or \"nginx\" class name. --kubeconfig Path to a kubeconfig file containing authorization and API server information. --log_backtrace_at when logging hits line file:N, emit a stack trace (default :0) --log_dir If non-empty, write log files in this directory --log_file If non-empty, use this log file --log_file_max_size Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) --logtostderr log to standard error instead of files (default true) --maxmind-edition-ids Maxmind edition ids to download GeoLite2 Databases. (default \"GeoLite2-City,GeoLite2-ASN\") --maxmind-license-key Maxmind license key to download GeoLite2 Databases. https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases --metrics-per-host Export metrics per-host (default true) --profiler-port Port to use for expose the ingress controller Go profiler when it is enabled. (default 10245) --profiling Enable profiling via web interface host:port/debug/pprof/ (default true) --publish-service Service fronting the Ingress controller. Takes the form \"namespace/name\". When used together with update-status, the controller mirrors the address of this service's endpoints to the load-balancer status of all Ingress objects it atisfies. --publish-status-address Customized address to set as the load-balancer status of Ingress objects this controller satisfies. Requires the update-status parameter. --report-node-internal-ip-address Set the load-balancer status of Ingress objects to internal Node addresses instead of external. Requires the update-status parameter. --skip_headers If true, avoid header prefixes in the log messages --skip_log_headers If true, avoid headers when opening log files --ssl-passthrough-proxy-port Port to use internally for SSL Passthrough. (default 442) --status-port Port to use for the lua HTTP endpoint configuration. (default 10246) --status-update-interval Time interval in seconds in which the status should check if an update is required. Default is 60 seconds (default 60) --stderrthreshold logs at or above this threshold go to stderr (default 2) --stream-port Port to use for the lua TCP/UDP endpoint configuration. (default 10247) --sync-period Period at which the controller forces the repopulation of its local object stores. Disabled by default. --sync-rate-limit Define the sync frequency upper limit (default 0.3) --tcp-services-configmap Name of the ConfigMap containing the definition of the TCP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port number or name. TCP ports 80 and 443 are reserved by the controller for servicing HTTP traffic. --udp-services-configmap Name of the ConfigMap containing the definition of the UDP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port name or number. --update-status Update the load-balancer status of Ingress objects this controller satisfies. Requires setting the publish-service parameter to a valid Service reference. (default true) --update-status-on-shutdown Update the load-balancer status of Ingress objects when the controller shuts down. Requires the update-status parameter. (default true) -v, --v Level number for the log level verbosity --validating-webhook The address to start an admission controller on to validate incoming ingresses. Takes the form \" :port\". If not provided, no admission controller is started. --validating-webhook-certificate The path of the validating webhook certificate PEM. --validating-webhook-key The path of the validating webhook key PEM. --version Show release information about the NGINX Ingress controller and exit. --vmodule comma-separated list of pattern=N settings for file-filtered logging --watch-namespace Namespace the controller watches for updates to Kubernetes objects. This includes Ingresses, Services and all configuration resources. All namespaces are watched if this parameter is left empty.","title":"Command line arguments"},{"location":"user-guide/cli-arguments/#command-line-arguments","text":"The following command line arguments are accepted by the Ingress controller executable. They are set in the container spec of the nginx-ingress-controller Deployment manifest Argument Description --add_dir_header If true, adds the file directory to the header --alsologtostderr log to standard error as well as files --annotations-prefix Prefix of the Ingress annotations specific to the NGINX controller. (default \"nginx.ingress.kubernetes.io\") --apiserver-host Address of the Kubernetes API server. Takes the form \"protocol://address:port\". If not specified, it is assumed the program runs inside a Kubernetes cluster and local discovery is attempted. --certificate-authority Path to a cert file for the certificate authority. This certificate is used only when the flag --apiserver-host is specified. --configmap Name of the ConfigMap containing custom global configurations for the controller. --default-backend-service Service used to serve HTTP requests not matching any known server name (catch-all). Takes the form \"namespace/name\". The controller configures NGINX to forward requests to the first port of this Service. --default-server-port Port to use for exposing the default server (catch-all). (default 8181) --default-ssl-certificate Secret containing a SSL certificate to be used by the default HTTPS server (catch-all). Takes the form \"namespace/name\". --disable-catch-all Disable support for catch-all Ingresses --election-id Election id to use for Ingress status updates. (default \"ingress-controller-leader\") --enable-metrics Enables the collection of NGINX metrics (default true) --enable-ssl-chain-completion Autocomplete SSL certificate chains with missing intermediate CA certificates. Certificates uploaded to Kubernetes must have the \"Authority Information Access\" X.509 v3 extension for this to succeed. --enable-ssl-passthrough Enable SSL Passthrough. --health-check-path URL path of the health check endpoint. Configured inside the NGINX status server. All requests received on the port defined by the healthz-port parameter are forwarded internally to this path. (default \"/healthz\") --health-check-timeout Time limit, in seconds, for a probe to health-check-path to succeed. (default 10) --healthz-port Port to use for the healthz endpoint. (default 10254) --http-port Port to use for servicing HTTP traffic. (default 80) --https-port Port to use for servicing HTTPS traffic. (default 443) --ingress-class Name of the ingress class this controller satisfies. The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.18.0 or higher or the annotation \"kubernetes.io/ingress.class\" (deprecated). If this parameter is not set, or set to the default value of \"nginx\", it will handle ingresses with either an empty or \"nginx\" class name. --kubeconfig Path to a kubeconfig file containing authorization and API server information. --log_backtrace_at when logging hits line file:N, emit a stack trace (default :0) --log_dir If non-empty, write log files in this directory --log_file If non-empty, use this log file --log_file_max_size Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) --logtostderr log to standard error instead of files (default true) --maxmind-edition-ids Maxmind edition ids to download GeoLite2 Databases. (default \"GeoLite2-City,GeoLite2-ASN\") --maxmind-license-key Maxmind license key to download GeoLite2 Databases. https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases --metrics-per-host Export metrics per-host (default true) --profiler-port Port to use for expose the ingress controller Go profiler when it is enabled. (default 10245) --profiling Enable profiling via web interface host:port/debug/pprof/ (default true) --publish-service Service fronting the Ingress controller. Takes the form \"namespace/name\". When used together with update-status, the controller mirrors the address of this service's endpoints to the load-balancer status of all Ingress objects it atisfies. --publish-status-address Customized address to set as the load-balancer status of Ingress objects this controller satisfies. Requires the update-status parameter. --report-node-internal-ip-address Set the load-balancer status of Ingress objects to internal Node addresses instead of external. Requires the update-status parameter. --skip_headers If true, avoid header prefixes in the log messages --skip_log_headers If true, avoid headers when opening log files --ssl-passthrough-proxy-port Port to use internally for SSL Passthrough. (default 442) --status-port Port to use for the lua HTTP endpoint configuration. (default 10246) --status-update-interval Time interval in seconds in which the status should check if an update is required. Default is 60 seconds (default 60) --stderrthreshold logs at or above this threshold go to stderr (default 2) --stream-port Port to use for the lua TCP/UDP endpoint configuration. (default 10247) --sync-period Period at which the controller forces the repopulation of its local object stores. Disabled by default. --sync-rate-limit Define the sync frequency upper limit (default 0.3) --tcp-services-configmap Name of the ConfigMap containing the definition of the TCP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port number or name. TCP ports 80 and 443 are reserved by the controller for servicing HTTP traffic. --udp-services-configmap Name of the ConfigMap containing the definition of the UDP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port name or number. --update-status Update the load-balancer status of Ingress objects this controller satisfies. Requires setting the publish-service parameter to a valid Service reference. (default true) --update-status-on-shutdown Update the load-balancer status of Ingress objects when the controller shuts down. Requires the update-status parameter. (default true) -v, --v Level number for the log level verbosity --validating-webhook The address to start an admission controller on to validate incoming ingresses. Takes the form \" :port\". If not provided, no admission controller is started. --validating-webhook-certificate The path of the validating webhook certificate PEM. --validating-webhook-key The path of the validating webhook key PEM. --version Show release information about the NGINX Ingress controller and exit. --vmodule comma-separated list of pattern=N settings for file-filtered logging --watch-namespace Namespace the controller watches for updates to Kubernetes objects. This includes Ingresses, Services and all configuration resources. All namespaces are watched if this parameter is left empty.","title":"Command line arguments"},{"location":"user-guide/custom-errors/","text":"Custom errors \u00b6 When the custom-http-errors option is enabled, the Ingress controller configures NGINX so that it passes several HTTP headers down to its default-backend in case of error: Header Value X-Code HTTP status code returned by the request X-Format Value of the Accept header sent by the client X-Original-URI URI that caused the error X-Namespace Namespace where the backend Service is located X-Ingress-Name Name of the Ingress where the backend is defined X-Service-Name Name of the Service backing the backend X-Service-Port Port number of the Service backing the backend X-Request-ID Unique ID that identifies the request - same as for backend service A custom error backend can use this information to return the best possible representation of an error page. For example, if the value of the Accept header send by the client was application/json , a carefully crafted backend could decide to return the error payload as a JSON document instead of HTML. Important The custom backend is expected to return the correct HTTP status code instead of 200 . NGINX does not change the response from the custom default backend. An example of such custom backend is available inside the source repository at images/custom-error-pages . See also the Custom errors example.","title":"Custom errors"},{"location":"user-guide/custom-errors/#custom-errors","text":"When the custom-http-errors option is enabled, the Ingress controller configures NGINX so that it passes several HTTP headers down to its default-backend in case of error: Header Value X-Code HTTP status code returned by the request X-Format Value of the Accept header sent by the client X-Original-URI URI that caused the error X-Namespace Namespace where the backend Service is located X-Ingress-Name Name of the Ingress where the backend is defined X-Service-Name Name of the Service backing the backend X-Service-Port Port number of the Service backing the backend X-Request-ID Unique ID that identifies the request - same as for backend service A custom error backend can use this information to return the best possible representation of an error page. For example, if the value of the Accept header send by the client was application/json , a carefully crafted backend could decide to return the error payload as a JSON document instead of HTML. Important The custom backend is expected to return the correct HTTP status code instead of 200 . NGINX does not change the response from the custom default backend. An example of such custom backend is available inside the source repository at images/custom-error-pages . See also the Custom errors example.","title":"Custom errors"},{"location":"user-guide/default-backend/","text":"Default backend \u00b6 The default backend is a service which handles all URL paths and hosts the nginx controller doesn't understand (i.e., all the requests that are not mapped with an Ingress). Basically a default backend exposes two URLs: /healthz that returns 200 / that returns 404 Example The sub-directory /images/custom-error-pages provides an additional service for the purpose of customizing the error pages served via the default backend.","title":"Default backend"},{"location":"user-guide/default-backend/#default-backend","text":"The default backend is a service which handles all URL paths and hosts the nginx controller doesn't understand (i.e., all the requests that are not mapped with an Ingress). Basically a default backend exposes two URLs: /healthz that returns 200 / that returns 404 Example The sub-directory /images/custom-error-pages provides an additional service for the purpose of customizing the error pages served via the default backend.","title":"Default backend"},{"location":"user-guide/exposing-tcp-udp-services/","text":"Exposing TCP and UDP services \u00b6 Ingress does not support TCP or UDP services. For this reason this Ingress controller uses the flags --tcp-services-configmap and --udp-services-configmap to point to an existing config map where the key is the external port to use and the value indicates the service to expose using the format: <namespace/service name>:<service port>:[PROXY]:[PROXY] It is also possible to use a number or the name of the port. The two last fields are optional. Adding PROXY in either or both of the two last fields we can use Proxy Protocol decoding (listen) and/or encoding (proxy_pass) in a TCP service https://www.nginx.com/resources/admin-guide/proxy-protocol The next example shows how to expose the service example-go running in the namespace default in the port 8080 using the port 9000 apiVersion : v1 kind : ConfigMap metadata : name : tcp-services namespace : ingress-nginx data : 9000 : \"default/example-go:8080\" Since 1.9.13 NGINX provides UDP Load Balancing . The next example shows how to expose the service kube-dns running in the namespace kube-system in the port 53 using the port 53 apiVersion : v1 kind : ConfigMap metadata : name : udp-services namespace : ingress-nginx data : 53 : \"kube-system/kube-dns:53\" If TCP/UDP proxy support is used, then those ports need to be exposed in the Service defined for the Ingress. apiVersion : v1 kind : Service metadata : name : ingress-nginx namespace : ingress-nginx labels : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx spec : type : LoadBalancer ports : - name : http port : 80 targetPort : 80 protocol : TCP - name : https port : 443 targetPort : 443 protocol : TCP - name : proxied-tcp-9000 port : 9000 targetPort : 9000 protocol : TCP selector : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx","title":"Exposing TCP and UDP services"},{"location":"user-guide/exposing-tcp-udp-services/#exposing-tcp-and-udp-services","text":"Ingress does not support TCP or UDP services. For this reason this Ingress controller uses the flags --tcp-services-configmap and --udp-services-configmap to point to an existing config map where the key is the external port to use and the value indicates the service to expose using the format: <namespace/service name>:<service port>:[PROXY]:[PROXY] It is also possible to use a number or the name of the port. The two last fields are optional. Adding PROXY in either or both of the two last fields we can use Proxy Protocol decoding (listen) and/or encoding (proxy_pass) in a TCP service https://www.nginx.com/resources/admin-guide/proxy-protocol The next example shows how to expose the service example-go running in the namespace default in the port 8080 using the port 9000 apiVersion : v1 kind : ConfigMap metadata : name : tcp-services namespace : ingress-nginx data : 9000 : \"default/example-go:8080\" Since 1.9.13 NGINX provides UDP Load Balancing . The next example shows how to expose the service kube-dns running in the namespace kube-system in the port 53 using the port 53 apiVersion : v1 kind : ConfigMap metadata : name : udp-services namespace : ingress-nginx data : 53 : \"kube-system/kube-dns:53\" If TCP/UDP proxy support is used, then those ports need to be exposed in the Service defined for the Ingress. apiVersion : v1 kind : Service metadata : name : ingress-nginx namespace : ingress-nginx labels : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx spec : type : LoadBalancer ports : - name : http port : 80 targetPort : 80 protocol : TCP - name : https port : 443 targetPort : 443 protocol : TCP - name : proxied-tcp-9000 port : 9000 targetPort : 9000 protocol : TCP selector : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx","title":"Exposing TCP and UDP services"},{"location":"user-guide/external-articles/","text":"External Articles \u00b6 Pain(less) NGINX Ingress Accessing Kubernetes Pods from Outside of the Cluster Kubernetes - Redirect HTTP to HTTPS with ELB and the nginx ingress controller Configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure","title":"External Articles"},{"location":"user-guide/external-articles/#external-articles","text":"Pain(less) NGINX Ingress Accessing Kubernetes Pods from Outside of the Cluster Kubernetes - Redirect HTTP to HTTPS with ELB and the nginx ingress controller Configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure","title":"External Articles"},{"location":"user-guide/fcgi-services/","text":"Exposing FastCGI Servers \u00b6 FastCGI is a binary protocol for interfacing interactive programs with a web server . [...] (It's) aim is to reduce the overhead related to interfacing between web server and CGI programs, allowing a server to handle more web page requests per unit of time. \u2014 Wikipedia The ingress-nginx ingress controller can be used to directly expose FastCGI servers. Enabling FastCGI in your Ingress only requires setting the backend-protocol annotation to FCGI , and with a couple more annotations you can customize the way ingress-nginx handles the communication with your FastCGI server . Example Objects to Expose a FastCGI Pod \u00b6 The Pod example object below exposes port 9000 , which is the conventional FastCGI port. apiVersion : v1 kind : Pod metadata : name : example-app labels : app : example-app spec : containers : - name : example-app image : example-app:1.0 ports : - containerPort : 9000 name : fastcgi The Service object example below matches port 9000 from the Pod object above. apiVersion : v1 kind : Service metadata : name : example-service spec : selector : app : example-app ports : - port : 9000 targetPort : 9000 name : fastcgi And the Ingress and ConfigMap objects below demonstrates the supported FastCGI specific annotations (NGINX actually has 50 FastCGI directives, all of which have not been exposed in the ingress yet), and matches the service example-service , and the port named fastcgi from above. The ConfigMap must be created first for the Ingress Controller to be able to find it when the Ingress object is created, otherwise you will need to restart the Ingress Controller pods. # The ConfigMap MUST be created first for the ingress controller to be able to # find it when the Ingress object is created. apiVersion : v1 kind : ConfigMap metadata : name : example-cm data : SCRIPT_FILENAME : \"/example/index.php\" --- apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : kubernetes.io/ingress.class : \"nginx\" nginx.ingress.kubernetes.io/backend-protocol : \"FCGI\" nginx.ingress.kubernetes.io/fastcgi-index : \"index.php\" nginx.ingress.kubernetes.io/fastcgi-params-configmap : \"example-cm\" name : example-app spec : rules : - host : app.example.com http : paths : - backend : serviceName : example-service servicePort : fastcgi FastCGI Ingress Annotations \u00b6 To enable FastCGI, the nginx.ingress.kubernetes.io/backend-protocol annotation needs to be set to FCGI , which overrides the default HTTP value. nginx.ingress.kubernetes.io/backend-protocol: \"FCGI\" This enables the FastCGI mode for all paths defined in the Ingress object The nginx.ingress.kubernetes.io/fastcgi-index Annotation \u00b6 To specify an index file, the fastcgi-index annotation value can optionally be set. In the example below, the value is set to index.php . This annotation corresponds to the NGINX fastcgi_index directive . nginx.ingress.kubernetes.io/fastcgi-index: \"index.php\" The nginx.ingress.kubernetes.io/fastcgi-params-configmap Annotation \u00b6 To specify NGINX fastcgi_param directives , the fastcgi-params-configmap annotation is used, which in turn must lead to a ConfigMap object containing the NGINX fastcgi_param directives as key/values. nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-configmap\" And the ConfigMap object to specify the SCRIPT_FILENAME and HTTP_PROXY NGINX's fastcgi_param directives will look like the following: apiVersion : v1 kind : ConfigMap metadata : name : example-configmap data : SCRIPT_FILENAME : \"/example/index.php\" HTTP_PROXY : \"\" Using the namespace/ prefix is also supported, for example: nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-namespace/example-configmap\"","title":"Exposing FCGI services"},{"location":"user-guide/fcgi-services/#exposing-fastcgi-servers","text":"FastCGI is a binary protocol for interfacing interactive programs with a web server . [...] (It's) aim is to reduce the overhead related to interfacing between web server and CGI programs, allowing a server to handle more web page requests per unit of time. \u2014 Wikipedia The ingress-nginx ingress controller can be used to directly expose FastCGI servers. Enabling FastCGI in your Ingress only requires setting the backend-protocol annotation to FCGI , and with a couple more annotations you can customize the way ingress-nginx handles the communication with your FastCGI server .","title":"Exposing FastCGI Servers"},{"location":"user-guide/fcgi-services/#example-objects-to-expose-a-fastcgi-pod","text":"The Pod example object below exposes port 9000 , which is the conventional FastCGI port. apiVersion : v1 kind : Pod metadata : name : example-app labels : app : example-app spec : containers : - name : example-app image : example-app:1.0 ports : - containerPort : 9000 name : fastcgi The Service object example below matches port 9000 from the Pod object above. apiVersion : v1 kind : Service metadata : name : example-service spec : selector : app : example-app ports : - port : 9000 targetPort : 9000 name : fastcgi And the Ingress and ConfigMap objects below demonstrates the supported FastCGI specific annotations (NGINX actually has 50 FastCGI directives, all of which have not been exposed in the ingress yet), and matches the service example-service , and the port named fastcgi from above. The ConfigMap must be created first for the Ingress Controller to be able to find it when the Ingress object is created, otherwise you will need to restart the Ingress Controller pods. # The ConfigMap MUST be created first for the ingress controller to be able to # find it when the Ingress object is created. apiVersion : v1 kind : ConfigMap metadata : name : example-cm data : SCRIPT_FILENAME : \"/example/index.php\" --- apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : kubernetes.io/ingress.class : \"nginx\" nginx.ingress.kubernetes.io/backend-protocol : \"FCGI\" nginx.ingress.kubernetes.io/fastcgi-index : \"index.php\" nginx.ingress.kubernetes.io/fastcgi-params-configmap : \"example-cm\" name : example-app spec : rules : - host : app.example.com http : paths : - backend : serviceName : example-service servicePort : fastcgi","title":"Example Objects to Expose a FastCGI Pod"},{"location":"user-guide/fcgi-services/#fastcgi-ingress-annotations","text":"To enable FastCGI, the nginx.ingress.kubernetes.io/backend-protocol annotation needs to be set to FCGI , which overrides the default HTTP value. nginx.ingress.kubernetes.io/backend-protocol: \"FCGI\" This enables the FastCGI mode for all paths defined in the Ingress object","title":"FastCGI Ingress Annotations"},{"location":"user-guide/fcgi-services/#the-nginxingresskubernetesiofastcgi-index-annotation","text":"To specify an index file, the fastcgi-index annotation value can optionally be set. In the example below, the value is set to index.php . This annotation corresponds to the NGINX fastcgi_index directive . nginx.ingress.kubernetes.io/fastcgi-index: \"index.php\"","title":"The nginx.ingress.kubernetes.io/fastcgi-index Annotation"},{"location":"user-guide/fcgi-services/#the-nginxingresskubernetesiofastcgi-params-configmap-annotation","text":"To specify NGINX fastcgi_param directives , the fastcgi-params-configmap annotation is used, which in turn must lead to a ConfigMap object containing the NGINX fastcgi_param directives as key/values. nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-configmap\" And the ConfigMap object to specify the SCRIPT_FILENAME and HTTP_PROXY NGINX's fastcgi_param directives will look like the following: apiVersion : v1 kind : ConfigMap metadata : name : example-configmap data : SCRIPT_FILENAME : \"/example/index.php\" HTTP_PROXY : \"\" Using the namespace/ prefix is also supported, for example: nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-namespace/example-configmap\"","title":"The nginx.ingress.kubernetes.io/fastcgi-params-configmap Annotation"},{"location":"user-guide/ingress-path-matching/","text":"Ingress Path Matching \u00b6 Regular Expression Support \u00b6 Important Regular expressions and wild cards are not supported in the spec.rules.host field. Full hostnames must be used. The ingress controller supports case insensitive regular expressions in the spec.rules.http.paths.path field. This can be enabled by setting the nginx.ingress.kubernetes.io/use-regex annotation to true (the default is false). Hint Kubernetes only accept expressions that comply with the RE2 engine syntax. It is possible that valid expressions accepted by NGINX cannot be used with ingress-nginx, because the PCRE library (used in NGINX) supports a wider syntax than RE2. See the RE2 Syntax documentation for differences. See the description of the use-regex annotation for more details. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/.* backend : serviceName : test servicePort : 80 The preceding ingress definition would translate to the following location block within the NGINX configuration for the test.com server: location ~* \"^/foo/.*\" { ... } Path Priority \u00b6 In NGINX, regular expressions follow a first match policy. In order to enable more accurate path matching, ingress-nginx first orders the paths by descending length before writing them to the NGINX template as location blocks. Please read the warning before using regular expressions in your ingress definitions. Example \u00b6 Let the following two ingress definitions be created: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-1 spec : rules : - host : test.com http : paths : - path : /foo/bar backend : serviceName : service1 servicePort : 80 - path : /foo/bar/ backend : serviceName : service2 servicePort : 80 apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-2 annotations : nginx.ingress.kubernetes.io/rewrite-target : /$1 spec : rules : - host : test.com http : paths : - path : /foo/bar/(.+) backend : serviceName : service3 servicePort : 80 The ingress controller would define the following location blocks, in order of descending length, within the NGINX template for the test.com server: location ~* ^/foo/bar/.+ { ... } location ~* \"^/foo/bar/\" { ... } location ~* \"^/foo/bar\" { ... } The following request URI's would match the corresponding location blocks: test.com/foo/bar/1 matches ~* ^/foo/bar/.+ and will go to service 3. test.com/foo/bar/ matches ~* ^/foo/bar/ and will go to service 2. test.com/foo/bar matches ~* ^/foo/bar and will go to service 1. IMPORTANT NOTES : If the use-regex OR rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Warning \u00b6 The following example describes a case that may inflict unwanted path matching behaviour. This case is expected and a result of NGINX's a first match policy for paths that use the regular expression location modifier . For more information about how a path is chosen, please read the following article: \"Understanding Nginx Server and Location Block Selection Algorithms\" . Example \u00b6 Let the following ingress be defined: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-3 annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/bar/bar backend : serviceName : test servicePort : 80 - path : /foo/bar/[A-Z0-9]{3} backend : serviceName : test servicePort : 80 The ingress controller would define the following location blocks (in this order) within the NGINX template for the test.com server: location ~* \"^/foo/bar/[A-Z0-9]{3}\" { ... } location ~* \"^/foo/bar/bar\" { ... } A request to test.com/foo/bar/bar would match the ^/foo/bar/[A-Z0-9]{3} location block instead of the longest EXACT matching path.","title":"Regular expressions in paths"},{"location":"user-guide/ingress-path-matching/#ingress-path-matching","text":"","title":"Ingress Path Matching"},{"location":"user-guide/ingress-path-matching/#regular-expression-support","text":"Important Regular expressions and wild cards are not supported in the spec.rules.host field. Full hostnames must be used. The ingress controller supports case insensitive regular expressions in the spec.rules.http.paths.path field. This can be enabled by setting the nginx.ingress.kubernetes.io/use-regex annotation to true (the default is false). Hint Kubernetes only accept expressions that comply with the RE2 engine syntax. It is possible that valid expressions accepted by NGINX cannot be used with ingress-nginx, because the PCRE library (used in NGINX) supports a wider syntax than RE2. See the RE2 Syntax documentation for differences. See the description of the use-regex annotation for more details. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/.* backend : serviceName : test servicePort : 80 The preceding ingress definition would translate to the following location block within the NGINX configuration for the test.com server: location ~* \"^/foo/.*\" { ... }","title":"Regular Expression Support"},{"location":"user-guide/ingress-path-matching/#path-priority","text":"In NGINX, regular expressions follow a first match policy. In order to enable more accurate path matching, ingress-nginx first orders the paths by descending length before writing them to the NGINX template as location blocks. Please read the warning before using regular expressions in your ingress definitions.","title":"Path Priority"},{"location":"user-guide/ingress-path-matching/#example","text":"Let the following two ingress definitions be created: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-1 spec : rules : - host : test.com http : paths : - path : /foo/bar backend : serviceName : service1 servicePort : 80 - path : /foo/bar/ backend : serviceName : service2 servicePort : 80 apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-2 annotations : nginx.ingress.kubernetes.io/rewrite-target : /$1 spec : rules : - host : test.com http : paths : - path : /foo/bar/(.+) backend : serviceName : service3 servicePort : 80 The ingress controller would define the following location blocks, in order of descending length, within the NGINX template for the test.com server: location ~* ^/foo/bar/.+ { ... } location ~* \"^/foo/bar/\" { ... } location ~* \"^/foo/bar\" { ... } The following request URI's would match the corresponding location blocks: test.com/foo/bar/1 matches ~* ^/foo/bar/.+ and will go to service 3. test.com/foo/bar/ matches ~* ^/foo/bar/ and will go to service 2. test.com/foo/bar matches ~* ^/foo/bar and will go to service 1. IMPORTANT NOTES : If the use-regex OR rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on.","title":"Example"},{"location":"user-guide/ingress-path-matching/#warning","text":"The following example describes a case that may inflict unwanted path matching behaviour. This case is expected and a result of NGINX's a first match policy for paths that use the regular expression location modifier . For more information about how a path is chosen, please read the following article: \"Understanding Nginx Server and Location Block Selection Algorithms\" .","title":"Warning"},{"location":"user-guide/ingress-path-matching/#example_1","text":"Let the following ingress be defined: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-3 annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/bar/bar backend : serviceName : test servicePort : 80 - path : /foo/bar/[A-Z0-9]{3} backend : serviceName : test servicePort : 80 The ingress controller would define the following location blocks (in this order) within the NGINX template for the test.com server: location ~* \"^/foo/bar/[A-Z0-9]{3}\" { ... } location ~* \"^/foo/bar/bar\" { ... } A request to test.com/foo/bar/bar would match the ^/foo/bar/[A-Z0-9]{3} location block instead of the longest EXACT matching path.","title":"Example"},{"location":"user-guide/miscellaneous/","text":"Miscellaneous \u00b6 Source IP address \u00b6 By default NGINX uses the content of the header X-Forwarded-For as the source of truth to get information about the client IP address. This works without issues in L7 if we configure the setting proxy-real-ip-cidr with the correct information of the IP/network address of trusted external load balancer. If the ingress controller is running in AWS we need to use the VPC IPv4 CIDR. Another option is to enable proxy protocol using use-proxy-protocol: \"true\" . In this mode NGINX does not use the content of the header to get the source IP address of the connection. Proxy Protocol \u00b6 If you are using a L4 proxy to forward the traffic to the NGINX pods and terminate HTTP/HTTPS there, you will lose the remote endpoint's IP address. To prevent this you could use the Proxy Protocol for forwarding traffic, this will send the connection details before forwarding the actual TCP connection itself. Amongst others ELBs in AWS and HAProxy support Proxy Protocol. Websockets \u00b6 Support for websockets is provided by NGINX out of the box. No special configuration required. The only requirement to avoid the close of connections is the increase of the values of proxy-read-timeout and proxy-send-timeout . The default value of this settings is 60 seconds . A more adequate value to support websockets is a value higher than one hour ( 3600 ). Important If the NGINX ingress controller is exposed with a service type=LoadBalancer make sure the protocol between the loadbalancer and NGINX is TCP. Optimizing TLS Time To First Byte (TTTFB) \u00b6 NGINX provides the configuration option ssl_buffer_size to allow the optimization of the TLS record size. This improves the TLS Time To First Byte (TTTFB). The default value in the Ingress controller is 4k (NGINX default is 16k ). Retries in non-idempotent methods \u00b6 Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error. The previous behavior can be restored using retry-non-idempotent=true in the configuration ConfigMap. Limitations \u00b6 Ingress rules for TLS require the definition of the field host Why endpoints and not services \u00b6 The NGINX ingress controller does not use Services to route traffic to the pods. Instead it uses the Endpoints API in order to bypass kube-proxy to allow NGINX features like session affinity and custom load balancing algorithms. It also removes some overhead, such as conntrack entries for iptables DNAT.","title":"Miscellaneous"},{"location":"user-guide/miscellaneous/#miscellaneous","text":"","title":"Miscellaneous"},{"location":"user-guide/miscellaneous/#source-ip-address","text":"By default NGINX uses the content of the header X-Forwarded-For as the source of truth to get information about the client IP address. This works without issues in L7 if we configure the setting proxy-real-ip-cidr with the correct information of the IP/network address of trusted external load balancer. If the ingress controller is running in AWS we need to use the VPC IPv4 CIDR. Another option is to enable proxy protocol using use-proxy-protocol: \"true\" . In this mode NGINX does not use the content of the header to get the source IP address of the connection.","title":"Source IP address"},{"location":"user-guide/miscellaneous/#proxy-protocol","text":"If you are using a L4 proxy to forward the traffic to the NGINX pods and terminate HTTP/HTTPS there, you will lose the remote endpoint's IP address. To prevent this you could use the Proxy Protocol for forwarding traffic, this will send the connection details before forwarding the actual TCP connection itself. Amongst others ELBs in AWS and HAProxy support Proxy Protocol.","title":"Proxy Protocol"},{"location":"user-guide/miscellaneous/#websockets","text":"Support for websockets is provided by NGINX out of the box. No special configuration required. The only requirement to avoid the close of connections is the increase of the values of proxy-read-timeout and proxy-send-timeout . The default value of this settings is 60 seconds . A more adequate value to support websockets is a value higher than one hour ( 3600 ). Important If the NGINX ingress controller is exposed with a service type=LoadBalancer make sure the protocol between the loadbalancer and NGINX is TCP.","title":"Websockets"},{"location":"user-guide/miscellaneous/#optimizing-tls-time-to-first-byte-tttfb","text":"NGINX provides the configuration option ssl_buffer_size to allow the optimization of the TLS record size. This improves the TLS Time To First Byte (TTTFB). The default value in the Ingress controller is 4k (NGINX default is 16k ).","title":"Optimizing TLS Time To First Byte (TTTFB)"},{"location":"user-guide/miscellaneous/#retries-in-non-idempotent-methods","text":"Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error. The previous behavior can be restored using retry-non-idempotent=true in the configuration ConfigMap.","title":"Retries in non-idempotent methods"},{"location":"user-guide/miscellaneous/#limitations","text":"Ingress rules for TLS require the definition of the field host","title":"Limitations"},{"location":"user-guide/miscellaneous/#why-endpoints-and-not-services","text":"The NGINX ingress controller does not use Services to route traffic to the pods. Instead it uses the Endpoints API in order to bypass kube-proxy to allow NGINX features like session affinity and custom load balancing algorithms. It also removes some overhead, such as conntrack entries for iptables DNAT.","title":"Why endpoints and not services"},{"location":"user-guide/monitoring/","text":"Prometheus and Grafana installation \u00b6 This tutorial will show you how to install Prometheus and Grafana for scraping the metrics of the NGINX Ingress controller. Important This example uses emptyDir volumes for Prometheus and Grafana. This means once the pod gets terminated you will lose all the data. Before You Begin \u00b6 The NGINX Ingress controller should already be deployed according to the deployment instructions here . Note that the kustomize bases used in this tutorial are stored in the deploy folder of the GitHub repository kubernetes/ingress-nginx . Deploy and configure Prometheus Server \u00b6 The Prometheus server must be configured so that it can discover endpoints of services. If a Prometheus server is already running in the cluster and if it is configured in a way that it can find the ingress controller pods, no extra configuration is needed. If there is no existing Prometheus server running, the rest of this tutorial will guide you through the steps needed to deploy a properly configured Prometheus server. Running the following command deploys prometheus in Kubernetes: kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/prometheus/ Prometheus Dashboard \u00b6 Open Prometheus dashboard in a web browser: kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 1m Obtain the IP address of the nodes in the running cluster: kubectl get nodes -o wide In some cases where the node only have internal IP addresses we need to execute: kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\\(@.type==\\\"InternalIP\\\"\\)].address} 10.192.0.2 10.192.0.3 10.192.0.4 Open your browser and visit the following URL: http://{node IP address}:{prometheus-svc-nodeport} to load the Prometheus Dashboard. According to the above example, this URL will be http://10.192.0.3:32630 Grafana \u00b6 kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/grafana/ kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 10m grafana NodePort 10.98.233.87 <none> 3000:31086/TCP 10m Open your browser and visit the following URL: http://{node IP address}:{grafana-svc-nodeport} to load the Grafana Dashboard. According to the above example, this URL will be http://10.192.0.3:31086 The username and password is admin After the login you can import the Grafana dashboard from official dashboards Caveats \u00b6 Wildcard ingresses \u00b6 By default request metrics are labeled with the hostname. When you have a wildcard domain ingress, then there will be no metrics for that ingress (to prevent the metrics from exploding in cardinality). To get metrics in this case you need to run the ingress controller with --metrics-per-host=false (you will lose labeling by hostname, but still have labeling by ingress).","title":"Prometheus and Grafana installation"},{"location":"user-guide/monitoring/#prometheus-and-grafana-installation","text":"This tutorial will show you how to install Prometheus and Grafana for scraping the metrics of the NGINX Ingress controller. Important This example uses emptyDir volumes for Prometheus and Grafana. This means once the pod gets terminated you will lose all the data.","title":"Prometheus and Grafana installation"},{"location":"user-guide/monitoring/#before-you-begin","text":"The NGINX Ingress controller should already be deployed according to the deployment instructions here . Note that the kustomize bases used in this tutorial are stored in the deploy folder of the GitHub repository kubernetes/ingress-nginx .","title":"Before You Begin"},{"location":"user-guide/monitoring/#deploy-and-configure-prometheus-server","text":"The Prometheus server must be configured so that it can discover endpoints of services. If a Prometheus server is already running in the cluster and if it is configured in a way that it can find the ingress controller pods, no extra configuration is needed. If there is no existing Prometheus server running, the rest of this tutorial will guide you through the steps needed to deploy a properly configured Prometheus server. Running the following command deploys prometheus in Kubernetes: kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/prometheus/","title":"Deploy and configure Prometheus Server"},{"location":"user-guide/monitoring/#prometheus-dashboard","text":"Open Prometheus dashboard in a web browser: kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 1m Obtain the IP address of the nodes in the running cluster: kubectl get nodes -o wide In some cases where the node only have internal IP addresses we need to execute: kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\\(@.type==\\\"InternalIP\\\"\\)].address} 10.192.0.2 10.192.0.3 10.192.0.4 Open your browser and visit the following URL: http://{node IP address}:{prometheus-svc-nodeport} to load the Prometheus Dashboard. According to the above example, this URL will be http://10.192.0.3:32630","title":"Prometheus Dashboard"},{"location":"user-guide/monitoring/#grafana","text":"kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/grafana/ kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 10m grafana NodePort 10.98.233.87 <none> 3000:31086/TCP 10m Open your browser and visit the following URL: http://{node IP address}:{grafana-svc-nodeport} to load the Grafana Dashboard. According to the above example, this URL will be http://10.192.0.3:31086 The username and password is admin After the login you can import the Grafana dashboard from official dashboards","title":"Grafana"},{"location":"user-guide/monitoring/#caveats","text":"","title":"Caveats"},{"location":"user-guide/monitoring/#wildcard-ingresses","text":"By default request metrics are labeled with the hostname. When you have a wildcard domain ingress, then there will be no metrics for that ingress (to prevent the metrics from exploding in cardinality). To get metrics in this case you need to run the ingress controller with --metrics-per-host=false (you will lose labeling by hostname, but still have labeling by ingress).","title":"Wildcard ingresses"},{"location":"user-guide/multiple-ingress/","text":"Multiple Ingress controllers \u00b6 If you're running multiple ingress controllers, or running on a cloud provider that natively handles ingress such as GKE, you need to specify the annotation kubernetes.io/ingress.class: \"nginx\" in all ingresses that you would like the ingress-nginx controller to claim. For instance, metadata : name : foo annotations : kubernetes.io/ingress.class : \"gce\" will target the GCE controller, forcing the nginx controller to ignore it, while an annotation like metadata : name : foo annotations : kubernetes.io/ingress.class : \"nginx\" will target the nginx controller, forcing the GCE controller to ignore it. To reiterate, setting the annotation to any value which does not match a valid ingress class will force the NGINX Ingress controller to ignore your Ingress. If you are only running a single NGINX ingress controller, this can be achieved by setting the annotation to any value except \"nginx\" or an empty string. Do this if you wish to use one of the other Ingress controllers at the same time as the NGINX controller. Multiple ingress-nginx controllers \u00b6 This mechanism also provides users the ability to run multiple NGINX ingress controllers (e.g. one which serves public traffic, one which serves \"internal\" traffic). To do this, the option --ingress-class must be changed to a value unique for the cluster within the definition of the replication controller. Here is a partial example: spec : template : spec : containers : - name : nginx-ingress-internal-controller args : - /nginx-ingress-controller - '--election-id=ingress-controller-leader-internal' - '--ingress-class=nginx-internal' - '--configmap=ingress/nginx-ingress-internal-controller' Important Deploying multiple Ingress controllers, of different types (e.g., ingress-nginx & gce ), and not specifying a class annotation will result in both or all controllers fighting to satisfy the Ingress, and all of them racing to update Ingress status field in confusing ways. When running multiple ingress-nginx controllers, it will only process an unset class annotation if one of the controllers uses the default --ingress-class value (see IsValid method in internal/ingress/annotations/class/main.go ), otherwise the class annotation become required. If --ingress-class is set to the default value of nginx , the controller will monitor Ingresses with no class annotation and Ingresses with annotation class set to nginx . Use a non-default value for --ingress-class , to ensure that the controller only satisfied the specific class of Ingresses.","title":"Multiple Ingress controllers"},{"location":"user-guide/multiple-ingress/#multiple-ingress-controllers","text":"If you're running multiple ingress controllers, or running on a cloud provider that natively handles ingress such as GKE, you need to specify the annotation kubernetes.io/ingress.class: \"nginx\" in all ingresses that you would like the ingress-nginx controller to claim. For instance, metadata : name : foo annotations : kubernetes.io/ingress.class : \"gce\" will target the GCE controller, forcing the nginx controller to ignore it, while an annotation like metadata : name : foo annotations : kubernetes.io/ingress.class : \"nginx\" will target the nginx controller, forcing the GCE controller to ignore it. To reiterate, setting the annotation to any value which does not match a valid ingress class will force the NGINX Ingress controller to ignore your Ingress. If you are only running a single NGINX ingress controller, this can be achieved by setting the annotation to any value except \"nginx\" or an empty string. Do this if you wish to use one of the other Ingress controllers at the same time as the NGINX controller.","title":"Multiple Ingress controllers"},{"location":"user-guide/multiple-ingress/#multiple-ingress-nginx-controllers","text":"This mechanism also provides users the ability to run multiple NGINX ingress controllers (e.g. one which serves public traffic, one which serves \"internal\" traffic). To do this, the option --ingress-class must be changed to a value unique for the cluster within the definition of the replication controller. Here is a partial example: spec : template : spec : containers : - name : nginx-ingress-internal-controller args : - /nginx-ingress-controller - '--election-id=ingress-controller-leader-internal' - '--ingress-class=nginx-internal' - '--configmap=ingress/nginx-ingress-internal-controller' Important Deploying multiple Ingress controllers, of different types (e.g., ingress-nginx & gce ), and not specifying a class annotation will result in both or all controllers fighting to satisfy the Ingress, and all of them racing to update Ingress status field in confusing ways. When running multiple ingress-nginx controllers, it will only process an unset class annotation if one of the controllers uses the default --ingress-class value (see IsValid method in internal/ingress/annotations/class/main.go ), otherwise the class annotation become required. If --ingress-class is set to the default value of nginx , the controller will monitor Ingresses with no class annotation and Ingresses with annotation class set to nginx . Use a non-default value for --ingress-class , to ensure that the controller only satisfied the specific class of Ingresses.","title":"Multiple ingress-nginx controllers"},{"location":"user-guide/tls/","text":"TLS/HTTPS \u00b6 TLS Secrets \u00b6 Anytime we reference a TLS secret, we mean a PEM-encoded X.509, RSA (2048) secret. You can generate a self-signed certificate and private key with: $ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ${ KEY_FILE } -out ${ CERT_FILE } -subj \"/CN= ${ HOST } /O= ${ HOST } \" Then create the secret in the cluster via: kubectl create secret tls ${ CERT_NAME } --key ${ KEY_FILE } --cert ${ CERT_FILE } The resulting secret will be of type kubernetes.io/tls . Default SSL Certificate \u00b6 NGINX provides the option to configure a server as a catch-all with server_name for requests that do not match any of the configured server names. This configuration works without out-of-the-box for HTTP traffic. For HTTPS, a certificate is naturally required. For this reason the Ingress controller provides the flag --default-ssl-certificate . The secret referred to by this flag contains the default certificate to be used when accessing the catch-all server. If this flag is not provided NGINX will use a self-signed certificate. For instance, if you have a TLS secret foo-tls in the default namespace, add --default-ssl-certificate=default/foo-tls in the nginx-controller deployment. The default certificate will also be used for ingress tls: sections that do not have a secretName option. SSL Passthrough \u00b6 The --enable-ssl-passthrough flag enables the SSL Passthrough feature, which is disabled by default. This is required to enable passthrough backends in Ingress objects. Warning This feature is implemented by intercepting all traffic on the configured HTTPS port (default: 443) and handing it over to a local TCP proxy. This bypasses NGINX completely and introduces a non-negligible performance penalty. SSL Passthrough leverages SNI and reads the virtual domain from the TLS negotiation, which requires compatible clients. After a connection has been accepted by the TLS listener, it is handled by the controller itself and piped back and forth between the backend and the client. If there is no hostname matching the requested host name, the request is handed over to NGINX on the configured passthrough proxy port (default: 442), which proxies the request to the default backend. Note Unlike HTTP backends, traffic to Passthrough backends is sent to the clusterIP of the backing Service instead of individual Endpoints. HTTP Strict Transport Security \u00b6 HTTP Strict Transport Security (HSTS) is an opt-in security enhancement specified through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS. HSTS is enabled by default. To disable this behavior use hsts: \"false\" in the configuration ConfigMap . Server-side HTTPS enforcement through redirect \u00b6 By default the controller redirects HTTP clients to the HTTPS port 443 using a 308 Permanent Redirect response if TLS is enabled for that Ingress. This can be disabled globally using ssl-redirect: \"false\" in the NGINX config map , or per-Ingress with the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. Tip When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource. Automated Certificate Management with Kube-Lego \u00b6 Tip Kube-Lego has reached end-of-life and is being replaced by cert-manager . Kube-Lego automatically requests missing or expired certificates from Let's Encrypt by monitoring ingress resources and their referenced secrets. To enable this for an ingress resource you have to add an annotation: kubectl annotate ing ingress-demo kubernetes.io/tls-acme=\"true\" To setup Kube-Lego you can take a look at this full example . The first version to fully support Kube-Lego is Nginx Ingress controller 0.8. Default TLS Version and Ciphers \u00b6 To provide the most secure baseline configuration possible, nginx-ingress defaults to using TLS 1.2 and 1.3 only, with a secure set of TLS ciphers . Legacy TLS \u00b6 The default configuration, though secure, does not support some older browsers and operating systems. For instance, TLS 1.1+ is only enabled by default from Android 5.0 on. At the time of writing, May 2018, approximately 15% of Android devices are not compatible with nginx-ingress's default configuration. To change this default behavior, use a ConfigMap . A sample ConfigMap fragment to allow these older clients to connect could look something like the following (generated using the Mozilla SSL Configuration Generator) mozilla-ssl-config-old : kind: ConfigMap apiVersion: v1 metadata: name: nginx-config data: ssl-ciphers: \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA\" ssl-protocols: \"TLSv1 TLSv1.1 TLSv1.2 TLSv1.3\"","title":"TLS/HTTPS"},{"location":"user-guide/tls/#tlshttps","text":"","title":"TLS/HTTPS"},{"location":"user-guide/tls/#tls-secrets","text":"Anytime we reference a TLS secret, we mean a PEM-encoded X.509, RSA (2048) secret. You can generate a self-signed certificate and private key with: $ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ${ KEY_FILE } -out ${ CERT_FILE } -subj \"/CN= ${ HOST } /O= ${ HOST } \" Then create the secret in the cluster via: kubectl create secret tls ${ CERT_NAME } --key ${ KEY_FILE } --cert ${ CERT_FILE } The resulting secret will be of type kubernetes.io/tls .","title":"TLS Secrets"},{"location":"user-guide/tls/#default-ssl-certificate","text":"NGINX provides the option to configure a server as a catch-all with server_name for requests that do not match any of the configured server names. This configuration works without out-of-the-box for HTTP traffic. For HTTPS, a certificate is naturally required. For this reason the Ingress controller provides the flag --default-ssl-certificate . The secret referred to by this flag contains the default certificate to be used when accessing the catch-all server. If this flag is not provided NGINX will use a self-signed certificate. For instance, if you have a TLS secret foo-tls in the default namespace, add --default-ssl-certificate=default/foo-tls in the nginx-controller deployment. The default certificate will also be used for ingress tls: sections that do not have a secretName option.","title":"Default SSL Certificate"},{"location":"user-guide/tls/#ssl-passthrough","text":"The --enable-ssl-passthrough flag enables the SSL Passthrough feature, which is disabled by default. This is required to enable passthrough backends in Ingress objects. Warning This feature is implemented by intercepting all traffic on the configured HTTPS port (default: 443) and handing it over to a local TCP proxy. This bypasses NGINX completely and introduces a non-negligible performance penalty. SSL Passthrough leverages SNI and reads the virtual domain from the TLS negotiation, which requires compatible clients. After a connection has been accepted by the TLS listener, it is handled by the controller itself and piped back and forth between the backend and the client. If there is no hostname matching the requested host name, the request is handed over to NGINX on the configured passthrough proxy port (default: 442), which proxies the request to the default backend. Note Unlike HTTP backends, traffic to Passthrough backends is sent to the clusterIP of the backing Service instead of individual Endpoints.","title":"SSL Passthrough"},{"location":"user-guide/tls/#http-strict-transport-security","text":"HTTP Strict Transport Security (HSTS) is an opt-in security enhancement specified through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS. HSTS is enabled by default. To disable this behavior use hsts: \"false\" in the configuration ConfigMap .","title":"HTTP Strict Transport Security"},{"location":"user-guide/tls/#server-side-https-enforcement-through-redirect","text":"By default the controller redirects HTTP clients to the HTTPS port 443 using a 308 Permanent Redirect response if TLS is enabled for that Ingress. This can be disabled globally using ssl-redirect: \"false\" in the NGINX config map , or per-Ingress with the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. Tip When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource.","title":"Server-side HTTPS enforcement through redirect"},{"location":"user-guide/tls/#automated-certificate-management-with-kube-lego","text":"Tip Kube-Lego has reached end-of-life and is being replaced by cert-manager . Kube-Lego automatically requests missing or expired certificates from Let's Encrypt by monitoring ingress resources and their referenced secrets. To enable this for an ingress resource you have to add an annotation: kubectl annotate ing ingress-demo kubernetes.io/tls-acme=\"true\" To setup Kube-Lego you can take a look at this full example . The first version to fully support Kube-Lego is Nginx Ingress controller 0.8.","title":"Automated Certificate Management with Kube-Lego"},{"location":"user-guide/tls/#default-tls-version-and-ciphers","text":"To provide the most secure baseline configuration possible, nginx-ingress defaults to using TLS 1.2 and 1.3 only, with a secure set of TLS ciphers .","title":"Default TLS Version and Ciphers"},{"location":"user-guide/tls/#legacy-tls","text":"The default configuration, though secure, does not support some older browsers and operating systems. For instance, TLS 1.1+ is only enabled by default from Android 5.0 on. At the time of writing, May 2018, approximately 15% of Android devices are not compatible with nginx-ingress's default configuration. To change this default behavior, use a ConfigMap . A sample ConfigMap fragment to allow these older clients to connect could look something like the following (generated using the Mozilla SSL Configuration Generator) mozilla-ssl-config-old : kind: ConfigMap apiVersion: v1 metadata: name: nginx-config data: ssl-ciphers: \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA\" ssl-protocols: \"TLSv1 TLSv1.1 TLSv1.2 TLSv1.3\"","title":"Legacy TLS"},{"location":"user-guide/nginx-configuration/","text":"NGINX Configuration \u00b6 There are three ways to customize NGINX: ConfigMap : using a Configmap to set global configurations in NGINX. Annotations : use this if you want a specific configuration for a particular Ingress rule. Custom template : when more specific settings are required, like open_file_cache , adjust listen options as rcvbuf or when is not possible to change the configuration through the ConfigMap.","title":"Introduction"},{"location":"user-guide/nginx-configuration/#nginx-configuration","text":"There are three ways to customize NGINX: ConfigMap : using a Configmap to set global configurations in NGINX. Annotations : use this if you want a specific configuration for a particular Ingress rule. Custom template : when more specific settings are required, like open_file_cache , adjust listen options as rcvbuf or when is not possible to change the configuration through the ConfigMap.","title":"NGINX Configuration"},{"location":"user-guide/nginx-configuration/annotations/","text":"Annotations \u00b6 You can add these Kubernetes annotations to specific Ingress objects to customize their behavior. Tip Annotation keys and values can only be strings. Other types, such as boolean or numeric values must be quoted, i.e. \"true\" , \"false\" , \"100\" . Note The annotation prefix can be changed using the --annotations-prefix command line argument , but the default is nginx.ingress.kubernetes.io , as described in the table below. Name type nginx.ingress.kubernetes.io/app-root string nginx.ingress.kubernetes.io/affinity cookie nginx.ingress.kubernetes.io/affinity-mode \"balanced\" or \"persistent\" nginx.ingress.kubernetes.io/auth-realm string nginx.ingress.kubernetes.io/auth-secret string nginx.ingress.kubernetes.io/auth-secret-type string nginx.ingress.kubernetes.io/auth-type basic or digest nginx.ingress.kubernetes.io/auth-tls-secret string nginx.ingress.kubernetes.io/auth-tls-verify-depth number nginx.ingress.kubernetes.io/auth-tls-verify-client string nginx.ingress.kubernetes.io/auth-tls-error-page string nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/auth-url string nginx.ingress.kubernetes.io/auth-cache-key string nginx.ingress.kubernetes.io/auth-cache-duration string nginx.ingress.kubernetes.io/auth-proxy-set-headers string nginx.ingress.kubernetes.io/auth-snippet string nginx.ingress.kubernetes.io/enable-global-auth \"true\" or \"false\" nginx.ingress.kubernetes.io/backend-protocol string nginx.ingress.kubernetes.io/canary \"true\" or \"false\" nginx.ingress.kubernetes.io/canary-by-header string nginx.ingress.kubernetes.io/canary-by-header-value string nginx.ingress.kubernetes.io/canary-by-header-pattern string nginx.ingress.kubernetes.io/canary-by-cookie string nginx.ingress.kubernetes.io/canary-weight number nginx.ingress.kubernetes.io/client-body-buffer-size string nginx.ingress.kubernetes.io/configuration-snippet string nginx.ingress.kubernetes.io/custom-http-errors []int nginx.ingress.kubernetes.io/default-backend string nginx.ingress.kubernetes.io/enable-cors \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-allow-origin string nginx.ingress.kubernetes.io/cors-allow-methods string nginx.ingress.kubernetes.io/cors-allow-headers string nginx.ingress.kubernetes.io/cors-allow-credentials \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-max-age number nginx.ingress.kubernetes.io/force-ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/from-to-www-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/http2-push-preload \"true\" or \"false\" nginx.ingress.kubernetes.io/limit-connections number nginx.ingress.kubernetes.io/limit-rps number nginx.ingress.kubernetes.io/permanent-redirect string nginx.ingress.kubernetes.io/permanent-redirect-code number nginx.ingress.kubernetes.io/temporal-redirect string nginx.ingress.kubernetes.io/proxy-body-size string nginx.ingress.kubernetes.io/proxy-cookie-domain string nginx.ingress.kubernetes.io/proxy-cookie-path string nginx.ingress.kubernetes.io/proxy-connect-timeout number nginx.ingress.kubernetes.io/proxy-send-timeout number nginx.ingress.kubernetes.io/proxy-read-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream string nginx.ingress.kubernetes.io/proxy-next-upstream-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream-tries number nginx.ingress.kubernetes.io/proxy-request-buffering string nginx.ingress.kubernetes.io/proxy-redirect-from string nginx.ingress.kubernetes.io/proxy-redirect-to string nginx.ingress.kubernetes.io/proxy-http-version \"1.0\" or \"1.1\" nginx.ingress.kubernetes.io/proxy-ssl-secret string nginx.ingress.kubernetes.io/proxy-ssl-ciphers string nginx.ingress.kubernetes.io/proxy-ssl-name string nginx.ingress.kubernetes.io/proxy-ssl-protocols string nginx.ingress.kubernetes.io/proxy-ssl-verify string nginx.ingress.kubernetes.io/proxy-ssl-verify-depth number nginx.ingress.kubernetes.io/proxy-ssl-server-name string nginx.ingress.kubernetes.io/enable-rewrite-log \"true\" or \"false\" nginx.ingress.kubernetes.io/rewrite-target URI nginx.ingress.kubernetes.io/satisfy string nginx.ingress.kubernetes.io/server-alias string nginx.ingress.kubernetes.io/server-snippet string nginx.ingress.kubernetes.io/service-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-name string nginx.ingress.kubernetes.io/session-cookie-path string nginx.ingress.kubernetes.io/session-cookie-change-on-failure \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-samesite string nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-passthrough \"true\" or \"false\" nginx.ingress.kubernetes.io/upstream-hash-by string nginx.ingress.kubernetes.io/x-forwarded-prefix string nginx.ingress.kubernetes.io/load-balance string nginx.ingress.kubernetes.io/upstream-vhost string nginx.ingress.kubernetes.io/whitelist-source-range CIDR nginx.ingress.kubernetes.io/proxy-buffering string nginx.ingress.kubernetes.io/proxy-buffers-number number nginx.ingress.kubernetes.io/proxy-buffer-size string nginx.ingress.kubernetes.io/proxy-max-temp-file-size string nginx.ingress.kubernetes.io/ssl-ciphers string nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers \"true\" or \"false\" nginx.ingress.kubernetes.io/connection-proxy-header string nginx.ingress.kubernetes.io/enable-access-log \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-opentracing \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-influxdb \"true\" or \"false\" nginx.ingress.kubernetes.io/influxdb-measurement string nginx.ingress.kubernetes.io/influxdb-port string nginx.ingress.kubernetes.io/influxdb-host string nginx.ingress.kubernetes.io/influxdb-server-name string nginx.ingress.kubernetes.io/use-regex bool nginx.ingress.kubernetes.io/enable-modsecurity bool nginx.ingress.kubernetes.io/enable-owasp-core-rules bool nginx.ingress.kubernetes.io/modsecurity-transaction-id string nginx.ingress.kubernetes.io/modsecurity-snippet string nginx.ingress.kubernetes.io/mirror-request-body string nginx.ingress.kubernetes.io/mirror-target string Canary \u00b6 In some cases, you may want to \"canary\" a new set of changes by sending a small number of requests to a different service than the production service. The canary annotation enables the Ingress spec to act as an alternative service for requests to route to depending on the rules applied. The following annotations to configure canary can be enabled after nginx.ingress.kubernetes.io/canary: \"true\" is set: nginx.ingress.kubernetes.io/canary-by-header : The header to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to always , it will be routed to the canary. When the header is set to never , it will never be routed to the canary. For any other value, the header will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-by-header-value : The header value to match for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to this value, it will be routed to the canary. For any other header value, the header will be ignored and the request compared against the other canary rules by precedence. This annotation has to be used together with . The annotation is an extension of the nginx.ingress.kubernetes.io/canary-by-header to allow customizing the header value instead of using hardcoded values. It doesn't have any effect if the nginx.ingress.kubernetes.io/canary-by-header annotation is not defined. nginx.ingress.kubernetes.io/canary-by-header-pattern : This works the same way as canary-by-header-value except it does PCRE Regex matching. Note that when canary-by-header-value is set this annotation will be ignored. When the given Regex causes error during request processing, the request will be considered as not matching. nginx.ingress.kubernetes.io/canary-by-cookie : The cookie to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the cookie value is set to always , it will be routed to the canary. When the cookie is set to never , it will never be routed to the canary. For any other value, the cookie will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-weight : The integer based (0 - 100) percent of random requests that should be routed to the service specified in the canary Ingress. A weight of 0 implies that no requests will be sent to the service in the Canary ingress by this canary rule. A weight of 100 means implies all requests will be sent to the alternative service specified in the Ingress. Canary rules are evaluated in order of precedence. Precedence is as follows: canary-by-header -> canary-by-cookie -> canary-weight Note that when you mark an ingress as canary, then all the other non-canary annotations will be ignored (inherited from the corresponding main ingress) except nginx.ingress.kubernetes.io/load-balance and nginx.ingress.kubernetes.io/upstream-hash-by . Known Limitations Currently a maximum of one canary ingress can be applied per Ingress rule. Rewrite \u00b6 In some scenarios the exposed URL in the backend service differs from the specified path in the Ingress rule. Without a rewrite any request will return 404. Set the annotation nginx.ingress.kubernetes.io/rewrite-target to the path expected by the service. If the Application Root is exposed in a different path and needs to be redirected, set the annotation nginx.ingress.kubernetes.io/app-root to redirect requests for / . Example Please check the rewrite example. Session Affinity \u00b6 The annotation nginx.ingress.kubernetes.io/affinity enables and sets the affinity type in all Upstreams of an Ingress. This way, a request will always be directed to the same upstream server. The only affinity type available for NGINX is cookie . The annotation nginx.ingress.kubernetes.io/affinity-mode defines the stickyness of a session. Setting this to balanced (default) will redistribute some sessions if a deployment gets scaled up, therefore rebalancing the load on the servers. Setting this to persistent will not rebalance sessions to new servers, therefore providing maximum stickyness. Attention If more than one Ingress is defined for a host and at least one Ingress uses nginx.ingress.kubernetes.io/affinity: cookie , then only paths on the Ingress using nginx.ingress.kubernetes.io/affinity will use session cookie affinity. All paths defined on other Ingresses for the host will be load balanced through the random selection of a backend server. Example Please check the affinity example. Cookie affinity \u00b6 If you use the cookie affinity type you can also specify the name of the cookie that will be used to route the requests with the annotation nginx.ingress.kubernetes.io/session-cookie-name . The default is to create a cookie named 'INGRESSCOOKIE'. The NGINX annotation nginx.ingress.kubernetes.io/session-cookie-path defines the path that will be set on the cookie. This is optional unless the annotation nginx.ingress.kubernetes.io/use-regex is set to true; Session cookie paths do not support regex. Use nginx.ingress.kubernetes.io/session-cookie-samesite to apply a SameSite attribute to the sticky cookie. Browser accepted values are None , Lax , and Strict . Some browsers reject cookies with SameSite=None , including those created before the SameSite=None specification (e.g. Chrome 5X). Other browsers mistakenly treat SameSite=None cookies as SameSite=Strict (e.g. Safari running on OSX 14). To omit SameSite=None from browsers with these incompatibilities, add the annotation nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none: \"true\" . Authentication \u00b6 It is possible to add authentication by adding additional annotations in the Ingress rule. The source of the authentication is a secret that contains usernames and passwords. The annotations are: nginx.ingress.kubernetes.io/auth-type: [basic|digest] Indicates the HTTP Authentication Type: Basic or Digest Access Authentication . nginx.ingress.kubernetes.io/auth-secret: secretName The name of the Secret that contains the usernames and passwords which are granted access to the path s defined in the Ingress rules. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-secret-type: [auth-file|auth-map] The auth-secret can have two forms: auth-file - default, an htpasswd file in the key auth within the secret auth-map - the keys of the secret are the usernames, and the values are the hashed passwords nginx.ingress.kubernetes.io/auth-realm: \"realm string\" Example Please check the auth example. Custom NGINX upstream hashing \u00b6 NGINX supports load balancing by client-server mapping based on consistent hashing for a given key. The key can contain text, variables or any combination thereof. This feature allows for request stickiness other than client IP or cookies. The ketama consistent hashing method will be used which ensures only a few keys would be remapped to different servers on upstream group changes. There is a special mode of upstream hashing called subset. In this mode, upstream servers are grouped into subsets, and stickiness works by mapping keys to a subset instead of individual upstream servers. Specific server is chosen uniformly at random from the selected sticky subset. It provides a balance between stickiness and load distribution. To enable consistent hashing for a backend: nginx.ingress.kubernetes.io/upstream-hash-by : the nginx variable, text value or any combination thereof to use for consistent hashing. For example: nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri$host\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"${request_uri}-text-value\" to consistently hash upstream requests by the current request URI. \"subset\" hashing can be enabled setting nginx.ingress.kubernetes.io/upstream-hash-by-subset : \"true\". This maps requests to subset of nodes instead of a single one. upstream-hash-by-subset-size determines the size of each subset (default 3). Please check the chashsubset example. Custom NGINX load balancing \u00b6 This is similar to load-balance in ConfigMap , but configures load balancing algorithm per ingress. Note that nginx.ingress.kubernetes.io/upstream-hash-by takes preference over this. If this and nginx.ingress.kubernetes.io/upstream-hash-by are not set then we fallback to using globally configured load balancing algorithm. Custom NGINX upstream vhost \u00b6 This configuration setting allows you to control the value for host in the following statement: proxy_set_header Host $host , which forms part of the location block. This is useful if you need to call the upstream server by something other than $host . Client Certificate Authentication \u00b6 It is possible to enable Client Certificate Authentication using additional annotations in Ingress Rule. The annotations are: nginx.ingress.kubernetes.io/auth-tls-secret: secretName : The name of the Secret that contains the full Certificate Authority chain ca.crt that is enabled to authenticate against this Ingress. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-tls-verify-depth : The validation depth between the provided client certificate and the Certification Authority chain. nginx.ingress.kubernetes.io/auth-tls-verify-client : Enables verification of client certificates. nginx.ingress.kubernetes.io/auth-tls-error-page : The URL/Page that user should be redirected in case of a Certificate Authentication Error nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream : Indicates if the received certificates should be passed or not to the upstream server. By default this is disabled. Example Please check the client-certs example. Attention TLS with Client Authentication is not possible in Cloudflare and might result in unexpected behavior. Cloudflare only allows Authenticated Origin Pulls and is required to use their own certificate: https://blog.cloudflare.com/protecting-the-origin-with-tls-authenticated-origin-pulls/ Only Authenticated Origin Pulls are allowed and can be configured by following their tutorial: https://support.cloudflare.com/hc/en-us/articles/204494148-Setting-up-NGINX-to-use-TLS-Authenticated-Origin-Pulls Backend Certificate Authentication \u00b6 It is possible to authenticate to a proxied HTTPS backend with certificate using additional annotations in Ingress Rule. nginx.ingress.kubernetes.io/proxy-ssl-secret: secretName : Specifies a Secret with the certificate tls.crt , key tls.key in PEM format used for authentication to a proxied HTTPS server. It should also contain trusted CA certificates ca.crt in PEM format used to verify the certificate of the proxied HTTPS server. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/proxy-ssl-verify : Enables or disables verification of the proxied HTTPS server certificate. (default: off) nginx.ingress.kubernetes.io/proxy-ssl-verify-depth : Sets the verification depth in the proxied HTTPS server certificates chain. (default: 1) nginx.ingress.kubernetes.io/proxy-ssl-ciphers : Specifies the enabled ciphers for requests to a proxied HTTPS server. The ciphers are specified in the format understood by the OpenSSL library. nginx.ingress.kubernetes.io/proxy-ssl-name : Allows to set proxy_ssl_name . This allows overriding the server name used to verify the certificate of the proxied HTTPS server. This value is also passed through SNI when a connection is established to the proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-protocols : Enables the specified protocols for requests to a proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-server-name : Enables passing of the server name through TLS Server Name Indication extension (SNI, RFC 6066) when establishing a connection with the proxied HTTPS server. Configuration snippet \u00b6 Using this annotation you can add additional configuration to the NGINX location. For example: nginx.ingress.kubernetes.io/configuration-snippet : | more_set_headers \"Request-Id: $req_id\"; Custom HTTP Errors \u00b6 Like the custom-http-errors value in the ConfigMap, this annotation will set NGINX proxy-intercept-errors , but only for the NGINX location associated with this ingress. If a default backend annotation is specified on the ingress, the errors will be routed to that annotation's default backend service (instead of the global default backend). Different ingresses can specify different sets of error codes. Even if multiple ingress objects share the same hostname, this annotation can be used to intercept different error codes for each ingress (for example, different error codes to be intercepted for different paths on the same hostname, if each path is on a different ingress). If custom-http-errors is also specified globally, the error values specified in this annotation will override the global value for the given ingress' hostname and path. Example usage: nginx.ingress.kubernetes.io/custom-http-errors: \"404,415\" Default Backend \u00b6 This annotation is of the form nginx.ingress.kubernetes.io/default-backend: <svc name> to specify a custom default backend. This <svc name> is a reference to a service inside of the same namespace in which you are applying this annotation. This annotation overrides the global default backend. This service will be handle the response when the service in the Ingress rule does not have active endpoints. It will also handle the error responses if both this annotation and the custom-http-errors annotation is set. Enable CORS \u00b6 To enable Cross-Origin Resource Sharing (CORS) in an Ingress rule, add the annotation nginx.ingress.kubernetes.io/enable-cors: \"true\" . This will add a section in the server location enabling this functionality. CORS can be controlled with the following annotations: nginx.ingress.kubernetes.io/cors-allow-methods controls which methods are accepted. This is a multi-valued field, separated by ',' and accepts only letters (upper and lower case). Default: GET, PUT, POST, DELETE, PATCH, OPTIONS Example: nginx.ingress.kubernetes.io/cors-allow-methods: \"PUT, GET, POST, OPTIONS\" nginx.ingress.kubernetes.io/cors-allow-headers controls which headers are accepted. This is a multi-valued field, separated by ',' and accepts letters, numbers, _ and -. Default: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization Example: nginx.ingress.kubernetes.io/cors-allow-headers: \"X-Forwarded-For, X-app123-XPTO\" nginx.ingress.kubernetes.io/cors-allow-origin controls what's the accepted Origin for CORS. This is a single field value, with the following format: http(s)://origin-site.com or http(s)://origin-site.com:port Default: * Example: nginx.ingress.kubernetes.io/cors-allow-origin: \"https://origin-site.com:4443\" nginx.ingress.kubernetes.io/cors-allow-credentials controls if credentials can be passed during CORS operations. Default: true Example: nginx.ingress.kubernetes.io/cors-allow-credentials: \"false\" nginx.ingress.kubernetes.io/cors-max-age controls how long preflight requests can be cached. Default: 1728000 Example: nginx.ingress.kubernetes.io/cors-max-age: 600 Note For more information please see https://enable-cors.org HTTP2 Push Preload. \u00b6 Enables automatic conversion of preload links specified in the \u201cLink\u201d response header fields into push requests. Example nginx.ingress.kubernetes.io/http2-push-preload: \"true\" Server Alias \u00b6 Allows the definition of one or more aliases in the server definition of the NGINX configuration using the annotation nginx.ingress.kubernetes.io/server-alias: \"<alias 1>,<alias 2>\" . This will create a server with the same configuration, but adding new values to the server_name directive. Note A server-alias name cannot conflict with the hostname of an existing server. If it does, the server-alias annotation will be ignored. If a server-alias is created and later a new server with the same hostname is created, the new server configuration will take place over the alias configuration. For more information please see the server_name documentation . Server snippet \u00b6 Using the annotation nginx.ingress.kubernetes.io/server-snippet it is possible to add custom configuration in the server configuration block. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : nginx.ingress.kubernetes.io/server-snippet : | set $agentflag 0; if ($http_user_agent ~* \"(Mobile)\" ){ set $agentflag 1; } if ( $agentflag = 1 ) { return 301 https://m.example.com; } Attention This annotation can be used only once per host. Client Body Buffer Size \u00b6 Sets buffer size for reading client request body per location. In case the request body is larger than the buffer, the whole body or only its part is written to a temporary file. By default, buffer size is equal to two memory pages. This is 8K on x86, other 32-bit platforms, and x86-64. It is usually 16K on other 64-bit platforms. This annotation is applied to each location provided in the ingress rule. Note The annotation value must be given in a format understood by Nginx. Example nginx.ingress.kubernetes.io/client-body-buffer-size: \"1000\" # 1000 bytes nginx.ingress.kubernetes.io/client-body-buffer-size: 1k # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1K # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1m # 1 megabyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1M # 1 megabyte For more information please see http://nginx.org External Authentication \u00b6 To use an existing service that provides authentication the Ingress rule can be annotated with nginx.ingress.kubernetes.io/auth-url to indicate the URL where the HTTP request should be sent. nginx.ingress.kubernetes.io/auth-url : \"URL to the authentication service\" Additionally it is possible to set: nginx.ingress.kubernetes.io/auth-method : <Method> to specify the HTTP method to use. nginx.ingress.kubernetes.io/auth-signin : <SignIn_URL> to specify the location of the error page. nginx.ingress.kubernetes.io/auth-response-headers : <Response_Header_1, ..., Response_Header_n> to specify headers to pass to backend once authentication request completes. nginx.ingress.kubernetes.io/auth-proxy-set-headers : <ConfigMap> the name of a ConfigMap that specifies headers to pass to the authentication service nginx.ingress.kubernetes.io/auth-request-redirect : <Request_Redirect_URL> to specify the X-Auth-Request-Redirect header value. nginx.ingress.kubernetes.io/auth-cache-key : <Cache_Key> this enables caching for auth requests. specify a lookup key for auth responses. e.g. $remote_user$http_authorization . Each server and location has it's own keyspace. Hence a cached response is only valid on a per-server and per-location basis. nginx.ingress.kubernetes.io/auth-cache-duration : <Cache_duration> to specify a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . nginx.ingress.kubernetes.io/auth-snippet : <Auth_Snippet> to specify a custom snippet to use with external authentication, e.g. nginx.ingress.kubernetes.io/auth-url : http://foo.com/external-auth nginx.ingress.kubernetes.io/auth-snippet : | proxy_set_header Foo-Header 42; Note: nginx.ingress.kubernetes.io/auth-snippet is an optional annotation. However, it may only be used in conjunction with nginx.ingress.kubernetes.io/auth-url and will be ignored if nginx.ingress.kubernetes.io/auth-url is not set Example Please check the external-auth example. Global External Authentication \u00b6 By default the controller redirects all requests to an existing service that provides authentication if global-auth-url is set in the NGINX ConfigMap. If you want to disable this behavior for that ingress, you can use enable-global-auth: \"false\" in the NGINX ConfigMap. nginx.ingress.kubernetes.io/enable-global-auth : indicates if GlobalExternalAuth configuration should be applied or not to this Ingress rule. Default values is set to \"true\" . Note For more information please see global-auth-url . Rate limiting \u00b6 These annotations define limits on connections and transmission rates. These can be used to mitigate DDoS Attacks . nginx.ingress.kubernetes.io/limit-connections : number of concurrent connections allowed from a single IP address. A 503 error is returned when exceeding this limit. nginx.ingress.kubernetes.io/limit-rps : number of requests accepted from a given IP each second. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rpm : number of requests accepted from a given IP each minute. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rate-after : initial number of kilobytes after which the further transmission of a response to a given connection will be rate limited. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-rate : number of kilobytes per second allowed to send to a given connection. The zero value disables rate limiting. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-whitelist : client IP source ranges to be excluded from rate-limiting. The value is a comma separated list of CIDRs. If you specify multiple annotations in a single Ingress rule, limits are applied in the order limit-connections , limit-rpm , limit-rps . To configure settings globally for all Ingress rules, the limit-rate-after and limit-rate values may be set in the NGINX ConfigMap . The value set in an Ingress annotation will override the global setting. The client IP address will be set based on the use of PROXY protocol or from the X-Forwarded-For header value when use-forwarded-headers is enabled. Permanent Redirect \u00b6 This annotation allows to return a permanent redirect instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/permanent-redirect: https://www.google.com would redirect everything to Google. Permanent Redirect Code \u00b6 This annotation allows you to modify the status code used for permanent redirects. For example nginx.ingress.kubernetes.io/permanent-redirect-code: '308' would return your permanent-redirect with a 308. Temporal Redirect \u00b6 This annotation allows you to return a temporal redirect (Return Code 302) instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/temporal-redirect: https://www.google.com would redirect everything to Google with a Return Code of 302 (Moved Temporarily) SSL Passthrough \u00b6 The annotation nginx.ingress.kubernetes.io/ssl-passthrough instructs the controller to send TLS connections directly to the backend instead of letting NGINX decrypt the communication. See also TLS/HTTPS in the User guide. Note SSL Passthrough is disabled by default and requires starting the controller with the --enable-ssl-passthrough flag. Attention Because SSL Passthrough works on layer 4 of the OSI model (TCP) and not on the layer 7 (HTTP), using SSL Passthrough invalidates all the other annotations set on an Ingress object. Service Upstream \u00b6 By default the NGINX ingress controller uses a list of all endpoints (Pod IP/port) in the NGINX upstream configuration. The nginx.ingress.kubernetes.io/service-upstream annotation disables that behavior and instead uses a single upstream in NGINX, the service's Cluster IP and port. This can be desirable for things like zero-downtime deployments as it reduces the need to reload NGINX configuration when Pods come up and down. See issue #257 . Known Issues \u00b6 If the service-upstream annotation is specified the following things should be taken into consideration: Sticky Sessions will not work as only round-robin load balancing is supported. The proxy_next_upstream directive will not have any effect meaning on error the request will not be dispatched to another upstream. Server-side HTTPS enforcement through redirect \u00b6 By default the controller redirects (308) to HTTPS if TLS is enabled for that ingress. If you want to disable this behavior globally, you can use ssl-redirect: \"false\" in the NGINX ConfigMap . To configure this feature for specific ingress resources, you can use the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource. Redirect from/to www \u00b6 In some scenarios is required to redirect from www.domain.com to domain.com or vice versa. To enable this feature use the annotation nginx.ingress.kubernetes.io/from-to-www-redirect: \"true\" Attention If at some point a new Ingress is created with a host equal to one of the options (like domain.com ) the annotation will be omitted. Attention For HTTPS to HTTPS redirects is mandatory the SSL Certificate defined in the Secret, located in the TLS section of Ingress, contains both FQDN in the common name of the certificate. Whitelist source range \u00b6 You can specify allowed client IP source ranges through the nginx.ingress.kubernetes.io/whitelist-source-range annotation. The value is a comma separated list of CIDRs , e.g. 10.0.0.0/24,172.10.0.1 . To configure this setting globally for all Ingress rules, the whitelist-source-range value may be set in the NGINX ConfigMap . Note Adding an annotation to an Ingress rule overrides any global restriction. Custom timeouts \u00b6 Using the configuration configmap it is possible to set the default global timeout for connections to the upstream servers. In some scenarios is required to have different values. To allow this we provide annotations that allows this customization: nginx.ingress.kubernetes.io/proxy-connect-timeout nginx.ingress.kubernetes.io/proxy-send-timeout nginx.ingress.kubernetes.io/proxy-read-timeout nginx.ingress.kubernetes.io/proxy-next-upstream nginx.ingress.kubernetes.io/proxy-next-upstream-timeout nginx.ingress.kubernetes.io/proxy-next-upstream-tries nginx.ingress.kubernetes.io/proxy-request-buffering Proxy redirect \u00b6 With the annotations nginx.ingress.kubernetes.io/proxy-redirect-from and nginx.ingress.kubernetes.io/proxy-redirect-to it is possible to set the text that should be changed in the Location and Refresh header fields of a proxied server response Setting \"off\" or \"default\" in the annotation nginx.ingress.kubernetes.io/proxy-redirect-from disables nginx.ingress.kubernetes.io/proxy-redirect-to , otherwise, both annotations must be used in unison. Note that each annotation must be a string without spaces. By default the value of each annotation is \"off\". Custom max body size \u00b6 For NGINX, an 413 error will be returned to the client when the size in a request exceeds the maximum allowed size of the client request body. This size can be configured by the parameter client_max_body_size . To configure this setting globally for all Ingress rules, the proxy-body-size value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-body-size : 8m Proxy cookie domain \u00b6 Sets a text that should be changed in the domain attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-domain value may be set in the NGINX ConfigMap . Proxy cookie path \u00b6 Sets a text that should be changed in the path attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-path value may be set in the NGINX ConfigMap . Proxy buffering \u00b6 Enable or disable proxy buffering proxy_buffering . By default proxy buffering is disabled in the NGINX config. To configure this setting globally for all Ingress rules, the proxy-buffering value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-buffering : \"on\" Proxy buffers Number \u00b6 Sets the number of the buffers in proxy_buffers used for reading the first part of the response received from the proxied server. By default proxy buffers number is set as 4 To configure this setting globally, set proxy-buffers-number in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffers-number : \"4\" Proxy buffer size \u00b6 Sets the size of the buffer proxy_buffer_size used for reading the first part of the response received from the proxied server. By default proxy buffer size is set as \"4k\" To configure this setting globally, set proxy-buffer-size in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffer-size : \"8k\" Proxy max temp file size \u00b6 When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file. This directive sets the maximum size of the temporary file setting the proxy_max_temp_file_size . The size of data written to the temporary file at a time is set by the proxy_temp_file_write_size directive. The zero value disables buffering of responses to temporary files. To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-max-temp-file-size : \"1024m\" Proxy HTTP version \u00b6 Using this annotation sets the proxy_http_version that the Nginx reverse proxy will use to communicate with the backend. By default this is set to \"1.1\". nginx.ingress.kubernetes.io/proxy-http-version : \"1.0\" SSL ciphers \u00b6 Specifies the enabled ciphers . Using this annotation will set the ssl_ciphers directive at the server level. This configuration is active for all the paths in the host. nginx.ingress.kubernetes.io/ssl-ciphers : \"ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP\" The following annotation will set the ssl_prefer_server_ciphers directive at the server level. This configuration specifies that server ciphers should be preferred over client ciphers when using the SSLv3 and TLS protocols. nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers : \"true\" Connection proxy header \u00b6 Using this annotation will override the default connection header set by NGINX. To use custom values in an Ingress rule, define the annotation: nginx.ingress.kubernetes.io/connection-proxy-header : \"keep-alive\" Enable Access Log \u00b6 Access logs are enabled by default, but in some scenarios access logs might be required to be disabled for a given ingress. To do this, use the annotation: nginx.ingress.kubernetes.io/enable-access-log : \"false\" Enable Rewrite Log \u00b6 Rewrite logs are not enabled by default. In some scenarios it could be required to enable NGINX rewrite logs. Note that rewrite logs are sent to the error_log file at the notice level. To enable this feature use the annotation: nginx.ingress.kubernetes.io/enable-rewrite-log : \"true\" Enable Opentracing \u00b6 Opentracing can be enabled or disabled globally through the ConfigMap but this will sometimes need to be overridden to enable it or disable it for a specific ingress (e.g. to turn off tracing of external health check endpoints) nginx.ingress.kubernetes.io/enable-opentracing : \"true\" X-Forwarded-Prefix Header \u00b6 To add the non-standard X-Forwarded-Prefix header to the upstream request with a string value, the following annotation can be used: nginx.ingress.kubernetes.io/x-forwarded-prefix : \"/path\" ModSecurity \u00b6 ModSecurity is an OpenSource Web Application firewall. It can be enabled for a particular set of ingress locations. The ModSecurity module must first be enabled by enabling ModSecurity in the ConfigMap . Note this will enable ModSecurity for all paths, and each path must be disabled manually. It can be enabled using the following annotation: nginx.ingress.kubernetes.io/enable-modsecurity : \"true\" ModSecurity will run in \"Detection-Only\" mode using the recommended configuration . You can enable the OWASP Core Rule Set by setting the following annotation: nginx.ingress.kubernetes.io/enable-owasp-core-rules : \"true\" You can pass transactionIDs from nginx by setting up the following: nginx.ingress.kubernetes.io/modsecurity-transaction-id : \"$request_id\" You can also add your own set of modsecurity rules via a snippet: nginx.ingress.kubernetes.io/modsecurity-snippet : | SecRuleEngine On SecDebugLog /tmp/modsec_debug.log Note: If you use both enable-owasp-core-rules and modsecurity-snippet annotations together, only the modsecurity-snippet will take effect. If you wish to include the OWASP Core Rule Set or recommended configuration simply use the include statement: nginx 0.24.1 and below nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf Include /etc/nginx/modsecurity/modsecurity.conf nginx 0.25.0 and above nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf InfluxDB \u00b6 Using influxdb-* annotations we can monitor requests passing through a Location by sending them to an InfluxDB backend exposing the UDP socket using the nginx-influxdb-module . nginx.ingress.kubernetes.io/enable-influxdb : \"true\" nginx.ingress.kubernetes.io/influxdb-measurement : \"nginx-reqs\" nginx.ingress.kubernetes.io/influxdb-port : \"8089\" nginx.ingress.kubernetes.io/influxdb-host : \"127.0.0.1\" nginx.ingress.kubernetes.io/influxdb-server-name : \"nginx-ingress\" For the influxdb-host parameter you have two options: Use an InfluxDB server configured with the UDP protocol enabled. Deploy Telegraf as a sidecar proxy to the Ingress controller configured to listen UDP with the socket listener input and to write using anyone of the outputs plugins like InfluxDB, Apache Kafka, Prometheus, etc.. (recommended) It's important to remember that there's no DNS resolver at this stage so you will have to configure an ip address to nginx.ingress.kubernetes.io/influxdb-host . If you deploy Influx or Telegraf as sidecar (another container in the same pod) this becomes straightforward since you can directly use 127.0.0.1 . Backend Protocol \u00b6 Using backend-protocol annotations is possible to indicate how NGINX should communicate with the backend service. (Replaces secure-backends in older versions) Valid Values: HTTP, HTTPS, GRPC, GRPCS, AJP and FCGI By default NGINX uses HTTP . Example: nginx.ingress.kubernetes.io/backend-protocol : \"HTTPS\" Use Regex \u00b6 Attention When using this annotation with the NGINX annotation nginx.ingress.kubernetes.io/affinity of type cookie , nginx.ingress.kubernetes.io/session-cookie-path must be also set; Session cookie paths do not support regex. Using the nginx.ingress.kubernetes.io/use-regex annotation will indicate whether or not the paths defined on an Ingress use regular expressions. The default value is false . The following will indicate that regular expression paths are being used: nginx.ingress.kubernetes.io/use-regex : \"true\" The following will indicate that regular expression paths are not being used: nginx.ingress.kubernetes.io/use-regex : \"false\" When this annotation is set to true , the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Additionally, if the rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Please read about ingress path matching before using this modifier. Satisfy \u00b6 By default, a request would need to satisfy all authentication requirements in order to be allowed. By using this annotation, requests that satisfy either any or all authentication requirements are allowed, based on the configuration value. nginx.ingress.kubernetes.io/satisfy : \"any\" Mirror \u00b6 Enables a request to be mirrored to a mirror backend. Responses by mirror backends are ignored. This feature is useful, to see how requests will react in \"test\" backends. The mirror backend can be set by applying: nginx.ingress.kubernetes.io/mirror-target : https://test.env.com/$request_uri By default the request-body is sent to the mirror backend, but can be turned off by applying: nginx.ingress.kubernetes.io/mirror-request-body : \"off\" Note: The mirror directive will be applied to all paths within the ingress resource. The request sent to the mirror is linked to the original request. If you have a slow mirror backend, then the original request will throttle. For more information on the mirror module see ngx_http_mirror_module","title":"Annotations"},{"location":"user-guide/nginx-configuration/annotations/#annotations","text":"You can add these Kubernetes annotations to specific Ingress objects to customize their behavior. Tip Annotation keys and values can only be strings. Other types, such as boolean or numeric values must be quoted, i.e. \"true\" , \"false\" , \"100\" . Note The annotation prefix can be changed using the --annotations-prefix command line argument , but the default is nginx.ingress.kubernetes.io , as described in the table below. Name type nginx.ingress.kubernetes.io/app-root string nginx.ingress.kubernetes.io/affinity cookie nginx.ingress.kubernetes.io/affinity-mode \"balanced\" or \"persistent\" nginx.ingress.kubernetes.io/auth-realm string nginx.ingress.kubernetes.io/auth-secret string nginx.ingress.kubernetes.io/auth-secret-type string nginx.ingress.kubernetes.io/auth-type basic or digest nginx.ingress.kubernetes.io/auth-tls-secret string nginx.ingress.kubernetes.io/auth-tls-verify-depth number nginx.ingress.kubernetes.io/auth-tls-verify-client string nginx.ingress.kubernetes.io/auth-tls-error-page string nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/auth-url string nginx.ingress.kubernetes.io/auth-cache-key string nginx.ingress.kubernetes.io/auth-cache-duration string nginx.ingress.kubernetes.io/auth-proxy-set-headers string nginx.ingress.kubernetes.io/auth-snippet string nginx.ingress.kubernetes.io/enable-global-auth \"true\" or \"false\" nginx.ingress.kubernetes.io/backend-protocol string nginx.ingress.kubernetes.io/canary \"true\" or \"false\" nginx.ingress.kubernetes.io/canary-by-header string nginx.ingress.kubernetes.io/canary-by-header-value string nginx.ingress.kubernetes.io/canary-by-header-pattern string nginx.ingress.kubernetes.io/canary-by-cookie string nginx.ingress.kubernetes.io/canary-weight number nginx.ingress.kubernetes.io/client-body-buffer-size string nginx.ingress.kubernetes.io/configuration-snippet string nginx.ingress.kubernetes.io/custom-http-errors []int nginx.ingress.kubernetes.io/default-backend string nginx.ingress.kubernetes.io/enable-cors \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-allow-origin string nginx.ingress.kubernetes.io/cors-allow-methods string nginx.ingress.kubernetes.io/cors-allow-headers string nginx.ingress.kubernetes.io/cors-allow-credentials \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-max-age number nginx.ingress.kubernetes.io/force-ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/from-to-www-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/http2-push-preload \"true\" or \"false\" nginx.ingress.kubernetes.io/limit-connections number nginx.ingress.kubernetes.io/limit-rps number nginx.ingress.kubernetes.io/permanent-redirect string nginx.ingress.kubernetes.io/permanent-redirect-code number nginx.ingress.kubernetes.io/temporal-redirect string nginx.ingress.kubernetes.io/proxy-body-size string nginx.ingress.kubernetes.io/proxy-cookie-domain string nginx.ingress.kubernetes.io/proxy-cookie-path string nginx.ingress.kubernetes.io/proxy-connect-timeout number nginx.ingress.kubernetes.io/proxy-send-timeout number nginx.ingress.kubernetes.io/proxy-read-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream string nginx.ingress.kubernetes.io/proxy-next-upstream-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream-tries number nginx.ingress.kubernetes.io/proxy-request-buffering string nginx.ingress.kubernetes.io/proxy-redirect-from string nginx.ingress.kubernetes.io/proxy-redirect-to string nginx.ingress.kubernetes.io/proxy-http-version \"1.0\" or \"1.1\" nginx.ingress.kubernetes.io/proxy-ssl-secret string nginx.ingress.kubernetes.io/proxy-ssl-ciphers string nginx.ingress.kubernetes.io/proxy-ssl-name string nginx.ingress.kubernetes.io/proxy-ssl-protocols string nginx.ingress.kubernetes.io/proxy-ssl-verify string nginx.ingress.kubernetes.io/proxy-ssl-verify-depth number nginx.ingress.kubernetes.io/proxy-ssl-server-name string nginx.ingress.kubernetes.io/enable-rewrite-log \"true\" or \"false\" nginx.ingress.kubernetes.io/rewrite-target URI nginx.ingress.kubernetes.io/satisfy string nginx.ingress.kubernetes.io/server-alias string nginx.ingress.kubernetes.io/server-snippet string nginx.ingress.kubernetes.io/service-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-name string nginx.ingress.kubernetes.io/session-cookie-path string nginx.ingress.kubernetes.io/session-cookie-change-on-failure \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-samesite string nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-passthrough \"true\" or \"false\" nginx.ingress.kubernetes.io/upstream-hash-by string nginx.ingress.kubernetes.io/x-forwarded-prefix string nginx.ingress.kubernetes.io/load-balance string nginx.ingress.kubernetes.io/upstream-vhost string nginx.ingress.kubernetes.io/whitelist-source-range CIDR nginx.ingress.kubernetes.io/proxy-buffering string nginx.ingress.kubernetes.io/proxy-buffers-number number nginx.ingress.kubernetes.io/proxy-buffer-size string nginx.ingress.kubernetes.io/proxy-max-temp-file-size string nginx.ingress.kubernetes.io/ssl-ciphers string nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers \"true\" or \"false\" nginx.ingress.kubernetes.io/connection-proxy-header string nginx.ingress.kubernetes.io/enable-access-log \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-opentracing \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-influxdb \"true\" or \"false\" nginx.ingress.kubernetes.io/influxdb-measurement string nginx.ingress.kubernetes.io/influxdb-port string nginx.ingress.kubernetes.io/influxdb-host string nginx.ingress.kubernetes.io/influxdb-server-name string nginx.ingress.kubernetes.io/use-regex bool nginx.ingress.kubernetes.io/enable-modsecurity bool nginx.ingress.kubernetes.io/enable-owasp-core-rules bool nginx.ingress.kubernetes.io/modsecurity-transaction-id string nginx.ingress.kubernetes.io/modsecurity-snippet string nginx.ingress.kubernetes.io/mirror-request-body string nginx.ingress.kubernetes.io/mirror-target string","title":"Annotations"},{"location":"user-guide/nginx-configuration/annotations/#canary","text":"In some cases, you may want to \"canary\" a new set of changes by sending a small number of requests to a different service than the production service. The canary annotation enables the Ingress spec to act as an alternative service for requests to route to depending on the rules applied. The following annotations to configure canary can be enabled after nginx.ingress.kubernetes.io/canary: \"true\" is set: nginx.ingress.kubernetes.io/canary-by-header : The header to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to always , it will be routed to the canary. When the header is set to never , it will never be routed to the canary. For any other value, the header will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-by-header-value : The header value to match for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to this value, it will be routed to the canary. For any other header value, the header will be ignored and the request compared against the other canary rules by precedence. This annotation has to be used together with . The annotation is an extension of the nginx.ingress.kubernetes.io/canary-by-header to allow customizing the header value instead of using hardcoded values. It doesn't have any effect if the nginx.ingress.kubernetes.io/canary-by-header annotation is not defined. nginx.ingress.kubernetes.io/canary-by-header-pattern : This works the same way as canary-by-header-value except it does PCRE Regex matching. Note that when canary-by-header-value is set this annotation will be ignored. When the given Regex causes error during request processing, the request will be considered as not matching. nginx.ingress.kubernetes.io/canary-by-cookie : The cookie to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the cookie value is set to always , it will be routed to the canary. When the cookie is set to never , it will never be routed to the canary. For any other value, the cookie will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-weight : The integer based (0 - 100) percent of random requests that should be routed to the service specified in the canary Ingress. A weight of 0 implies that no requests will be sent to the service in the Canary ingress by this canary rule. A weight of 100 means implies all requests will be sent to the alternative service specified in the Ingress. Canary rules are evaluated in order of precedence. Precedence is as follows: canary-by-header -> canary-by-cookie -> canary-weight Note that when you mark an ingress as canary, then all the other non-canary annotations will be ignored (inherited from the corresponding main ingress) except nginx.ingress.kubernetes.io/load-balance and nginx.ingress.kubernetes.io/upstream-hash-by . Known Limitations Currently a maximum of one canary ingress can be applied per Ingress rule.","title":"Canary"},{"location":"user-guide/nginx-configuration/annotations/#rewrite","text":"In some scenarios the exposed URL in the backend service differs from the specified path in the Ingress rule. Without a rewrite any request will return 404. Set the annotation nginx.ingress.kubernetes.io/rewrite-target to the path expected by the service. If the Application Root is exposed in a different path and needs to be redirected, set the annotation nginx.ingress.kubernetes.io/app-root to redirect requests for / . Example Please check the rewrite example.","title":"Rewrite"},{"location":"user-guide/nginx-configuration/annotations/#session-affinity","text":"The annotation nginx.ingress.kubernetes.io/affinity enables and sets the affinity type in all Upstreams of an Ingress. This way, a request will always be directed to the same upstream server. The only affinity type available for NGINX is cookie . The annotation nginx.ingress.kubernetes.io/affinity-mode defines the stickyness of a session. Setting this to balanced (default) will redistribute some sessions if a deployment gets scaled up, therefore rebalancing the load on the servers. Setting this to persistent will not rebalance sessions to new servers, therefore providing maximum stickyness. Attention If more than one Ingress is defined for a host and at least one Ingress uses nginx.ingress.kubernetes.io/affinity: cookie , then only paths on the Ingress using nginx.ingress.kubernetes.io/affinity will use session cookie affinity. All paths defined on other Ingresses for the host will be load balanced through the random selection of a backend server. Example Please check the affinity example.","title":"Session Affinity"},{"location":"user-guide/nginx-configuration/annotations/#cookie-affinity","text":"If you use the cookie affinity type you can also specify the name of the cookie that will be used to route the requests with the annotation nginx.ingress.kubernetes.io/session-cookie-name . The default is to create a cookie named 'INGRESSCOOKIE'. The NGINX annotation nginx.ingress.kubernetes.io/session-cookie-path defines the path that will be set on the cookie. This is optional unless the annotation nginx.ingress.kubernetes.io/use-regex is set to true; Session cookie paths do not support regex. Use nginx.ingress.kubernetes.io/session-cookie-samesite to apply a SameSite attribute to the sticky cookie. Browser accepted values are None , Lax , and Strict . Some browsers reject cookies with SameSite=None , including those created before the SameSite=None specification (e.g. Chrome 5X). Other browsers mistakenly treat SameSite=None cookies as SameSite=Strict (e.g. Safari running on OSX 14). To omit SameSite=None from browsers with these incompatibilities, add the annotation nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none: \"true\" .","title":"Cookie affinity"},{"location":"user-guide/nginx-configuration/annotations/#authentication","text":"It is possible to add authentication by adding additional annotations in the Ingress rule. The source of the authentication is a secret that contains usernames and passwords. The annotations are: nginx.ingress.kubernetes.io/auth-type: [basic|digest] Indicates the HTTP Authentication Type: Basic or Digest Access Authentication . nginx.ingress.kubernetes.io/auth-secret: secretName The name of the Secret that contains the usernames and passwords which are granted access to the path s defined in the Ingress rules. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-secret-type: [auth-file|auth-map] The auth-secret can have two forms: auth-file - default, an htpasswd file in the key auth within the secret auth-map - the keys of the secret are the usernames, and the values are the hashed passwords nginx.ingress.kubernetes.io/auth-realm: \"realm string\" Example Please check the auth example.","title":"Authentication"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-upstream-hashing","text":"NGINX supports load balancing by client-server mapping based on consistent hashing for a given key. The key can contain text, variables or any combination thereof. This feature allows for request stickiness other than client IP or cookies. The ketama consistent hashing method will be used which ensures only a few keys would be remapped to different servers on upstream group changes. There is a special mode of upstream hashing called subset. In this mode, upstream servers are grouped into subsets, and stickiness works by mapping keys to a subset instead of individual upstream servers. Specific server is chosen uniformly at random from the selected sticky subset. It provides a balance between stickiness and load distribution. To enable consistent hashing for a backend: nginx.ingress.kubernetes.io/upstream-hash-by : the nginx variable, text value or any combination thereof to use for consistent hashing. For example: nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri$host\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"${request_uri}-text-value\" to consistently hash upstream requests by the current request URI. \"subset\" hashing can be enabled setting nginx.ingress.kubernetes.io/upstream-hash-by-subset : \"true\". This maps requests to subset of nodes instead of a single one. upstream-hash-by-subset-size determines the size of each subset (default 3). Please check the chashsubset example.","title":"Custom NGINX upstream hashing"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-load-balancing","text":"This is similar to load-balance in ConfigMap , but configures load balancing algorithm per ingress. Note that nginx.ingress.kubernetes.io/upstream-hash-by takes preference over this. If this and nginx.ingress.kubernetes.io/upstream-hash-by are not set then we fallback to using globally configured load balancing algorithm.","title":"Custom NGINX load balancing"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-upstream-vhost","text":"This configuration setting allows you to control the value for host in the following statement: proxy_set_header Host $host , which forms part of the location block. This is useful if you need to call the upstream server by something other than $host .","title":"Custom NGINX upstream vhost"},{"location":"user-guide/nginx-configuration/annotations/#client-certificate-authentication","text":"It is possible to enable Client Certificate Authentication using additional annotations in Ingress Rule. The annotations are: nginx.ingress.kubernetes.io/auth-tls-secret: secretName : The name of the Secret that contains the full Certificate Authority chain ca.crt that is enabled to authenticate against this Ingress. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-tls-verify-depth : The validation depth between the provided client certificate and the Certification Authority chain. nginx.ingress.kubernetes.io/auth-tls-verify-client : Enables verification of client certificates. nginx.ingress.kubernetes.io/auth-tls-error-page : The URL/Page that user should be redirected in case of a Certificate Authentication Error nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream : Indicates if the received certificates should be passed or not to the upstream server. By default this is disabled. Example Please check the client-certs example. Attention TLS with Client Authentication is not possible in Cloudflare and might result in unexpected behavior. Cloudflare only allows Authenticated Origin Pulls and is required to use their own certificate: https://blog.cloudflare.com/protecting-the-origin-with-tls-authenticated-origin-pulls/ Only Authenticated Origin Pulls are allowed and can be configured by following their tutorial: https://support.cloudflare.com/hc/en-us/articles/204494148-Setting-up-NGINX-to-use-TLS-Authenticated-Origin-Pulls","title":"Client Certificate Authentication"},{"location":"user-guide/nginx-configuration/annotations/#backend-certificate-authentication","text":"It is possible to authenticate to a proxied HTTPS backend with certificate using additional annotations in Ingress Rule. nginx.ingress.kubernetes.io/proxy-ssl-secret: secretName : Specifies a Secret with the certificate tls.crt , key tls.key in PEM format used for authentication to a proxied HTTPS server. It should also contain trusted CA certificates ca.crt in PEM format used to verify the certificate of the proxied HTTPS server. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/proxy-ssl-verify : Enables or disables verification of the proxied HTTPS server certificate. (default: off) nginx.ingress.kubernetes.io/proxy-ssl-verify-depth : Sets the verification depth in the proxied HTTPS server certificates chain. (default: 1) nginx.ingress.kubernetes.io/proxy-ssl-ciphers : Specifies the enabled ciphers for requests to a proxied HTTPS server. The ciphers are specified in the format understood by the OpenSSL library. nginx.ingress.kubernetes.io/proxy-ssl-name : Allows to set proxy_ssl_name . This allows overriding the server name used to verify the certificate of the proxied HTTPS server. This value is also passed through SNI when a connection is established to the proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-protocols : Enables the specified protocols for requests to a proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-server-name : Enables passing of the server name through TLS Server Name Indication extension (SNI, RFC 6066) when establishing a connection with the proxied HTTPS server.","title":"Backend Certificate Authentication"},{"location":"user-guide/nginx-configuration/annotations/#configuration-snippet","text":"Using this annotation you can add additional configuration to the NGINX location. For example: nginx.ingress.kubernetes.io/configuration-snippet : | more_set_headers \"Request-Id: $req_id\";","title":"Configuration snippet"},{"location":"user-guide/nginx-configuration/annotations/#custom-http-errors","text":"Like the custom-http-errors value in the ConfigMap, this annotation will set NGINX proxy-intercept-errors , but only for the NGINX location associated with this ingress. If a default backend annotation is specified on the ingress, the errors will be routed to that annotation's default backend service (instead of the global default backend). Different ingresses can specify different sets of error codes. Even if multiple ingress objects share the same hostname, this annotation can be used to intercept different error codes for each ingress (for example, different error codes to be intercepted for different paths on the same hostname, if each path is on a different ingress). If custom-http-errors is also specified globally, the error values specified in this annotation will override the global value for the given ingress' hostname and path. Example usage: nginx.ingress.kubernetes.io/custom-http-errors: \"404,415\"","title":"Custom HTTP Errors"},{"location":"user-guide/nginx-configuration/annotations/#default-backend","text":"This annotation is of the form nginx.ingress.kubernetes.io/default-backend: <svc name> to specify a custom default backend. This <svc name> is a reference to a service inside of the same namespace in which you are applying this annotation. This annotation overrides the global default backend. This service will be handle the response when the service in the Ingress rule does not have active endpoints. It will also handle the error responses if both this annotation and the custom-http-errors annotation is set.","title":"Default Backend"},{"location":"user-guide/nginx-configuration/annotations/#enable-cors","text":"To enable Cross-Origin Resource Sharing (CORS) in an Ingress rule, add the annotation nginx.ingress.kubernetes.io/enable-cors: \"true\" . This will add a section in the server location enabling this functionality. CORS can be controlled with the following annotations: nginx.ingress.kubernetes.io/cors-allow-methods controls which methods are accepted. This is a multi-valued field, separated by ',' and accepts only letters (upper and lower case). Default: GET, PUT, POST, DELETE, PATCH, OPTIONS Example: nginx.ingress.kubernetes.io/cors-allow-methods: \"PUT, GET, POST, OPTIONS\" nginx.ingress.kubernetes.io/cors-allow-headers controls which headers are accepted. This is a multi-valued field, separated by ',' and accepts letters, numbers, _ and -. Default: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization Example: nginx.ingress.kubernetes.io/cors-allow-headers: \"X-Forwarded-For, X-app123-XPTO\" nginx.ingress.kubernetes.io/cors-allow-origin controls what's the accepted Origin for CORS. This is a single field value, with the following format: http(s)://origin-site.com or http(s)://origin-site.com:port Default: * Example: nginx.ingress.kubernetes.io/cors-allow-origin: \"https://origin-site.com:4443\" nginx.ingress.kubernetes.io/cors-allow-credentials controls if credentials can be passed during CORS operations. Default: true Example: nginx.ingress.kubernetes.io/cors-allow-credentials: \"false\" nginx.ingress.kubernetes.io/cors-max-age controls how long preflight requests can be cached. Default: 1728000 Example: nginx.ingress.kubernetes.io/cors-max-age: 600 Note For more information please see https://enable-cors.org","title":"Enable CORS"},{"location":"user-guide/nginx-configuration/annotations/#http2-push-preload","text":"Enables automatic conversion of preload links specified in the \u201cLink\u201d response header fields into push requests. Example nginx.ingress.kubernetes.io/http2-push-preload: \"true\"","title":"HTTP2 Push Preload."},{"location":"user-guide/nginx-configuration/annotations/#server-alias","text":"Allows the definition of one or more aliases in the server definition of the NGINX configuration using the annotation nginx.ingress.kubernetes.io/server-alias: \"<alias 1>,<alias 2>\" . This will create a server with the same configuration, but adding new values to the server_name directive. Note A server-alias name cannot conflict with the hostname of an existing server. If it does, the server-alias annotation will be ignored. If a server-alias is created and later a new server with the same hostname is created, the new server configuration will take place over the alias configuration. For more information please see the server_name documentation .","title":"Server Alias"},{"location":"user-guide/nginx-configuration/annotations/#server-snippet","text":"Using the annotation nginx.ingress.kubernetes.io/server-snippet it is possible to add custom configuration in the server configuration block. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : nginx.ingress.kubernetes.io/server-snippet : | set $agentflag 0; if ($http_user_agent ~* \"(Mobile)\" ){ set $agentflag 1; } if ( $agentflag = 1 ) { return 301 https://m.example.com; } Attention This annotation can be used only once per host.","title":"Server snippet"},{"location":"user-guide/nginx-configuration/annotations/#client-body-buffer-size","text":"Sets buffer size for reading client request body per location. In case the request body is larger than the buffer, the whole body or only its part is written to a temporary file. By default, buffer size is equal to two memory pages. This is 8K on x86, other 32-bit platforms, and x86-64. It is usually 16K on other 64-bit platforms. This annotation is applied to each location provided in the ingress rule. Note The annotation value must be given in a format understood by Nginx. Example nginx.ingress.kubernetes.io/client-body-buffer-size: \"1000\" # 1000 bytes nginx.ingress.kubernetes.io/client-body-buffer-size: 1k # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1K # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1m # 1 megabyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1M # 1 megabyte For more information please see http://nginx.org","title":"Client Body Buffer Size"},{"location":"user-guide/nginx-configuration/annotations/#external-authentication","text":"To use an existing service that provides authentication the Ingress rule can be annotated with nginx.ingress.kubernetes.io/auth-url to indicate the URL where the HTTP request should be sent. nginx.ingress.kubernetes.io/auth-url : \"URL to the authentication service\" Additionally it is possible to set: nginx.ingress.kubernetes.io/auth-method : <Method> to specify the HTTP method to use. nginx.ingress.kubernetes.io/auth-signin : <SignIn_URL> to specify the location of the error page. nginx.ingress.kubernetes.io/auth-response-headers : <Response_Header_1, ..., Response_Header_n> to specify headers to pass to backend once authentication request completes. nginx.ingress.kubernetes.io/auth-proxy-set-headers : <ConfigMap> the name of a ConfigMap that specifies headers to pass to the authentication service nginx.ingress.kubernetes.io/auth-request-redirect : <Request_Redirect_URL> to specify the X-Auth-Request-Redirect header value. nginx.ingress.kubernetes.io/auth-cache-key : <Cache_Key> this enables caching for auth requests. specify a lookup key for auth responses. e.g. $remote_user$http_authorization . Each server and location has it's own keyspace. Hence a cached response is only valid on a per-server and per-location basis. nginx.ingress.kubernetes.io/auth-cache-duration : <Cache_duration> to specify a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . nginx.ingress.kubernetes.io/auth-snippet : <Auth_Snippet> to specify a custom snippet to use with external authentication, e.g. nginx.ingress.kubernetes.io/auth-url : http://foo.com/external-auth nginx.ingress.kubernetes.io/auth-snippet : | proxy_set_header Foo-Header 42; Note: nginx.ingress.kubernetes.io/auth-snippet is an optional annotation. However, it may only be used in conjunction with nginx.ingress.kubernetes.io/auth-url and will be ignored if nginx.ingress.kubernetes.io/auth-url is not set Example Please check the external-auth example.","title":"External Authentication"},{"location":"user-guide/nginx-configuration/annotations/#global-external-authentication","text":"By default the controller redirects all requests to an existing service that provides authentication if global-auth-url is set in the NGINX ConfigMap. If you want to disable this behavior for that ingress, you can use enable-global-auth: \"false\" in the NGINX ConfigMap. nginx.ingress.kubernetes.io/enable-global-auth : indicates if GlobalExternalAuth configuration should be applied or not to this Ingress rule. Default values is set to \"true\" . Note For more information please see global-auth-url .","title":"Global External Authentication"},{"location":"user-guide/nginx-configuration/annotations/#rate-limiting","text":"These annotations define limits on connections and transmission rates. These can be used to mitigate DDoS Attacks . nginx.ingress.kubernetes.io/limit-connections : number of concurrent connections allowed from a single IP address. A 503 error is returned when exceeding this limit. nginx.ingress.kubernetes.io/limit-rps : number of requests accepted from a given IP each second. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rpm : number of requests accepted from a given IP each minute. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rate-after : initial number of kilobytes after which the further transmission of a response to a given connection will be rate limited. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-rate : number of kilobytes per second allowed to send to a given connection. The zero value disables rate limiting. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-whitelist : client IP source ranges to be excluded from rate-limiting. The value is a comma separated list of CIDRs. If you specify multiple annotations in a single Ingress rule, limits are applied in the order limit-connections , limit-rpm , limit-rps . To configure settings globally for all Ingress rules, the limit-rate-after and limit-rate values may be set in the NGINX ConfigMap . The value set in an Ingress annotation will override the global setting. The client IP address will be set based on the use of PROXY protocol or from the X-Forwarded-For header value when use-forwarded-headers is enabled.","title":"Rate limiting"},{"location":"user-guide/nginx-configuration/annotations/#permanent-redirect","text":"This annotation allows to return a permanent redirect instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/permanent-redirect: https://www.google.com would redirect everything to Google.","title":"Permanent Redirect"},{"location":"user-guide/nginx-configuration/annotations/#permanent-redirect-code","text":"This annotation allows you to modify the status code used for permanent redirects. For example nginx.ingress.kubernetes.io/permanent-redirect-code: '308' would return your permanent-redirect with a 308.","title":"Permanent Redirect Code"},{"location":"user-guide/nginx-configuration/annotations/#temporal-redirect","text":"This annotation allows you to return a temporal redirect (Return Code 302) instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/temporal-redirect: https://www.google.com would redirect everything to Google with a Return Code of 302 (Moved Temporarily)","title":"Temporal Redirect"},{"location":"user-guide/nginx-configuration/annotations/#ssl-passthrough","text":"The annotation nginx.ingress.kubernetes.io/ssl-passthrough instructs the controller to send TLS connections directly to the backend instead of letting NGINX decrypt the communication. See also TLS/HTTPS in the User guide. Note SSL Passthrough is disabled by default and requires starting the controller with the --enable-ssl-passthrough flag. Attention Because SSL Passthrough works on layer 4 of the OSI model (TCP) and not on the layer 7 (HTTP), using SSL Passthrough invalidates all the other annotations set on an Ingress object.","title":"SSL Passthrough"},{"location":"user-guide/nginx-configuration/annotations/#service-upstream","text":"By default the NGINX ingress controller uses a list of all endpoints (Pod IP/port) in the NGINX upstream configuration. The nginx.ingress.kubernetes.io/service-upstream annotation disables that behavior and instead uses a single upstream in NGINX, the service's Cluster IP and port. This can be desirable for things like zero-downtime deployments as it reduces the need to reload NGINX configuration when Pods come up and down. See issue #257 .","title":"Service Upstream"},{"location":"user-guide/nginx-configuration/annotations/#known-issues","text":"If the service-upstream annotation is specified the following things should be taken into consideration: Sticky Sessions will not work as only round-robin load balancing is supported. The proxy_next_upstream directive will not have any effect meaning on error the request will not be dispatched to another upstream.","title":"Known Issues"},{"location":"user-guide/nginx-configuration/annotations/#server-side-https-enforcement-through-redirect","text":"By default the controller redirects (308) to HTTPS if TLS is enabled for that ingress. If you want to disable this behavior globally, you can use ssl-redirect: \"false\" in the NGINX ConfigMap . To configure this feature for specific ingress resources, you can use the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource.","title":"Server-side HTTPS enforcement through redirect"},{"location":"user-guide/nginx-configuration/annotations/#redirect-fromto-www","text":"In some scenarios is required to redirect from www.domain.com to domain.com or vice versa. To enable this feature use the annotation nginx.ingress.kubernetes.io/from-to-www-redirect: \"true\" Attention If at some point a new Ingress is created with a host equal to one of the options (like domain.com ) the annotation will be omitted. Attention For HTTPS to HTTPS redirects is mandatory the SSL Certificate defined in the Secret, located in the TLS section of Ingress, contains both FQDN in the common name of the certificate.","title":"Redirect from/to www"},{"location":"user-guide/nginx-configuration/annotations/#whitelist-source-range","text":"You can specify allowed client IP source ranges through the nginx.ingress.kubernetes.io/whitelist-source-range annotation. The value is a comma separated list of CIDRs , e.g. 10.0.0.0/24,172.10.0.1 . To configure this setting globally for all Ingress rules, the whitelist-source-range value may be set in the NGINX ConfigMap . Note Adding an annotation to an Ingress rule overrides any global restriction.","title":"Whitelist source range"},{"location":"user-guide/nginx-configuration/annotations/#custom-timeouts","text":"Using the configuration configmap it is possible to set the default global timeout for connections to the upstream servers. In some scenarios is required to have different values. To allow this we provide annotations that allows this customization: nginx.ingress.kubernetes.io/proxy-connect-timeout nginx.ingress.kubernetes.io/proxy-send-timeout nginx.ingress.kubernetes.io/proxy-read-timeout nginx.ingress.kubernetes.io/proxy-next-upstream nginx.ingress.kubernetes.io/proxy-next-upstream-timeout nginx.ingress.kubernetes.io/proxy-next-upstream-tries nginx.ingress.kubernetes.io/proxy-request-buffering","title":"Custom timeouts"},{"location":"user-guide/nginx-configuration/annotations/#proxy-redirect","text":"With the annotations nginx.ingress.kubernetes.io/proxy-redirect-from and nginx.ingress.kubernetes.io/proxy-redirect-to it is possible to set the text that should be changed in the Location and Refresh header fields of a proxied server response Setting \"off\" or \"default\" in the annotation nginx.ingress.kubernetes.io/proxy-redirect-from disables nginx.ingress.kubernetes.io/proxy-redirect-to , otherwise, both annotations must be used in unison. Note that each annotation must be a string without spaces. By default the value of each annotation is \"off\".","title":"Proxy redirect"},{"location":"user-guide/nginx-configuration/annotations/#custom-max-body-size","text":"For NGINX, an 413 error will be returned to the client when the size in a request exceeds the maximum allowed size of the client request body. This size can be configured by the parameter client_max_body_size . To configure this setting globally for all Ingress rules, the proxy-body-size value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-body-size : 8m","title":"Custom max body size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-cookie-domain","text":"Sets a text that should be changed in the domain attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-domain value may be set in the NGINX ConfigMap .","title":"Proxy cookie domain"},{"location":"user-guide/nginx-configuration/annotations/#proxy-cookie-path","text":"Sets a text that should be changed in the path attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-path value may be set in the NGINX ConfigMap .","title":"Proxy cookie path"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffering","text":"Enable or disable proxy buffering proxy_buffering . By default proxy buffering is disabled in the NGINX config. To configure this setting globally for all Ingress rules, the proxy-buffering value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-buffering : \"on\"","title":"Proxy buffering"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffers-number","text":"Sets the number of the buffers in proxy_buffers used for reading the first part of the response received from the proxied server. By default proxy buffers number is set as 4 To configure this setting globally, set proxy-buffers-number in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffers-number : \"4\"","title":"Proxy buffers Number"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffer-size","text":"Sets the size of the buffer proxy_buffer_size used for reading the first part of the response received from the proxied server. By default proxy buffer size is set as \"4k\" To configure this setting globally, set proxy-buffer-size in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffer-size : \"8k\"","title":"Proxy buffer size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-max-temp-file-size","text":"When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file. This directive sets the maximum size of the temporary file setting the proxy_max_temp_file_size . The size of data written to the temporary file at a time is set by the proxy_temp_file_write_size directive. The zero value disables buffering of responses to temporary files. To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-max-temp-file-size : \"1024m\"","title":"Proxy max temp file size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-http-version","text":"Using this annotation sets the proxy_http_version that the Nginx reverse proxy will use to communicate with the backend. By default this is set to \"1.1\". nginx.ingress.kubernetes.io/proxy-http-version : \"1.0\"","title":"Proxy HTTP version"},{"location":"user-guide/nginx-configuration/annotations/#ssl-ciphers","text":"Specifies the enabled ciphers . Using this annotation will set the ssl_ciphers directive at the server level. This configuration is active for all the paths in the host. nginx.ingress.kubernetes.io/ssl-ciphers : \"ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP\" The following annotation will set the ssl_prefer_server_ciphers directive at the server level. This configuration specifies that server ciphers should be preferred over client ciphers when using the SSLv3 and TLS protocols. nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers : \"true\"","title":"SSL ciphers"},{"location":"user-guide/nginx-configuration/annotations/#connection-proxy-header","text":"Using this annotation will override the default connection header set by NGINX. To use custom values in an Ingress rule, define the annotation: nginx.ingress.kubernetes.io/connection-proxy-header : \"keep-alive\"","title":"Connection proxy header"},{"location":"user-guide/nginx-configuration/annotations/#enable-access-log","text":"Access logs are enabled by default, but in some scenarios access logs might be required to be disabled for a given ingress. To do this, use the annotation: nginx.ingress.kubernetes.io/enable-access-log : \"false\"","title":"Enable Access Log"},{"location":"user-guide/nginx-configuration/annotations/#enable-rewrite-log","text":"Rewrite logs are not enabled by default. In some scenarios it could be required to enable NGINX rewrite logs. Note that rewrite logs are sent to the error_log file at the notice level. To enable this feature use the annotation: nginx.ingress.kubernetes.io/enable-rewrite-log : \"true\"","title":"Enable Rewrite Log"},{"location":"user-guide/nginx-configuration/annotations/#enable-opentracing","text":"Opentracing can be enabled or disabled globally through the ConfigMap but this will sometimes need to be overridden to enable it or disable it for a specific ingress (e.g. to turn off tracing of external health check endpoints) nginx.ingress.kubernetes.io/enable-opentracing : \"true\"","title":"Enable Opentracing"},{"location":"user-guide/nginx-configuration/annotations/#x-forwarded-prefix-header","text":"To add the non-standard X-Forwarded-Prefix header to the upstream request with a string value, the following annotation can be used: nginx.ingress.kubernetes.io/x-forwarded-prefix : \"/path\"","title":"X-Forwarded-Prefix Header"},{"location":"user-guide/nginx-configuration/annotations/#modsecurity","text":"ModSecurity is an OpenSource Web Application firewall. It can be enabled for a particular set of ingress locations. The ModSecurity module must first be enabled by enabling ModSecurity in the ConfigMap . Note this will enable ModSecurity for all paths, and each path must be disabled manually. It can be enabled using the following annotation: nginx.ingress.kubernetes.io/enable-modsecurity : \"true\" ModSecurity will run in \"Detection-Only\" mode using the recommended configuration . You can enable the OWASP Core Rule Set by setting the following annotation: nginx.ingress.kubernetes.io/enable-owasp-core-rules : \"true\" You can pass transactionIDs from nginx by setting up the following: nginx.ingress.kubernetes.io/modsecurity-transaction-id : \"$request_id\" You can also add your own set of modsecurity rules via a snippet: nginx.ingress.kubernetes.io/modsecurity-snippet : | SecRuleEngine On SecDebugLog /tmp/modsec_debug.log Note: If you use both enable-owasp-core-rules and modsecurity-snippet annotations together, only the modsecurity-snippet will take effect. If you wish to include the OWASP Core Rule Set or recommended configuration simply use the include statement: nginx 0.24.1 and below nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf Include /etc/nginx/modsecurity/modsecurity.conf nginx 0.25.0 and above nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf","title":"ModSecurity"},{"location":"user-guide/nginx-configuration/annotations/#influxdb","text":"Using influxdb-* annotations we can monitor requests passing through a Location by sending them to an InfluxDB backend exposing the UDP socket using the nginx-influxdb-module . nginx.ingress.kubernetes.io/enable-influxdb : \"true\" nginx.ingress.kubernetes.io/influxdb-measurement : \"nginx-reqs\" nginx.ingress.kubernetes.io/influxdb-port : \"8089\" nginx.ingress.kubernetes.io/influxdb-host : \"127.0.0.1\" nginx.ingress.kubernetes.io/influxdb-server-name : \"nginx-ingress\" For the influxdb-host parameter you have two options: Use an InfluxDB server configured with the UDP protocol enabled. Deploy Telegraf as a sidecar proxy to the Ingress controller configured to listen UDP with the socket listener input and to write using anyone of the outputs plugins like InfluxDB, Apache Kafka, Prometheus, etc.. (recommended) It's important to remember that there's no DNS resolver at this stage so you will have to configure an ip address to nginx.ingress.kubernetes.io/influxdb-host . If you deploy Influx or Telegraf as sidecar (another container in the same pod) this becomes straightforward since you can directly use 127.0.0.1 .","title":"InfluxDB"},{"location":"user-guide/nginx-configuration/annotations/#backend-protocol","text":"Using backend-protocol annotations is possible to indicate how NGINX should communicate with the backend service. (Replaces secure-backends in older versions) Valid Values: HTTP, HTTPS, GRPC, GRPCS, AJP and FCGI By default NGINX uses HTTP . Example: nginx.ingress.kubernetes.io/backend-protocol : \"HTTPS\"","title":"Backend Protocol"},{"location":"user-guide/nginx-configuration/annotations/#use-regex","text":"Attention When using this annotation with the NGINX annotation nginx.ingress.kubernetes.io/affinity of type cookie , nginx.ingress.kubernetes.io/session-cookie-path must be also set; Session cookie paths do not support regex. Using the nginx.ingress.kubernetes.io/use-regex annotation will indicate whether or not the paths defined on an Ingress use regular expressions. The default value is false . The following will indicate that regular expression paths are being used: nginx.ingress.kubernetes.io/use-regex : \"true\" The following will indicate that regular expression paths are not being used: nginx.ingress.kubernetes.io/use-regex : \"false\" When this annotation is set to true , the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Additionally, if the rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Please read about ingress path matching before using this modifier.","title":"Use Regex"},{"location":"user-guide/nginx-configuration/annotations/#satisfy","text":"By default, a request would need to satisfy all authentication requirements in order to be allowed. By using this annotation, requests that satisfy either any or all authentication requirements are allowed, based on the configuration value. nginx.ingress.kubernetes.io/satisfy : \"any\"","title":"Satisfy"},{"location":"user-guide/nginx-configuration/annotations/#mirror","text":"Enables a request to be mirrored to a mirror backend. Responses by mirror backends are ignored. This feature is useful, to see how requests will react in \"test\" backends. The mirror backend can be set by applying: nginx.ingress.kubernetes.io/mirror-target : https://test.env.com/$request_uri By default the request-body is sent to the mirror backend, but can be turned off by applying: nginx.ingress.kubernetes.io/mirror-request-body : \"off\" Note: The mirror directive will be applied to all paths within the ingress resource. The request sent to the mirror is linked to the original request. If you have a slow mirror backend, then the original request will throttle. For more information on the mirror module see ngx_http_mirror_module","title":"Mirror"},{"location":"user-guide/nginx-configuration/configmap/","text":"ConfigMaps \u00b6 ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. The ConfigMap API resource stores configuration data as key-value pairs. The data provides the configurations for system components for the nginx-controller. In order to overwrite nginx-controller configuration values as seen in config.go , you can add key-value pairs to the data section of the config-map. For Example: data : map-hash-bucket-size : \"128\" ssl-protocols : SSLv2 Important The key and values in a ConfigMap can only be strings. This means that we want a value with boolean values we need to quote the values, like \"true\" or \"false\". Same for numbers, like \"100\". \"Slice\" types (defined below as []string or []int ) can be provided as a comma-delimited string. Configuration options \u00b6 The following table shows a configuration option's name, type, and the default value: name type default add-headers string \"\" allow-backend-server-header bool \"false\" hide-headers string array empty access-log-params string \"\" access-log-path string \"/var/log/nginx/access.log\" http-access-log-path string \"\" stream-access-log-path string \"\" enable-access-log-for-default-backend bool \"false\" error-log-path string \"/var/log/nginx/error.log\" enable-modsecurity bool \"false\" modsecurity-snippet string \"\" enable-owasp-modsecurity-crs bool \"false\" client-header-buffer-size string \"1k\" client-header-timeout int 60 client-body-buffer-size string \"8k\" client-body-timeout int 60 disable-access-log bool false disable-ipv6 bool false disable-ipv6-dns bool false enable-underscores-in-headers bool false enable-ocsp bool false ignore-invalid-headers bool true retry-non-idempotent bool \"false\" error-log-level string \"notice\" http2-max-field-size string \"4k\" http2-max-header-size string \"16k\" http2-max-requests int 1000 http2-max-concurrent-streams int 1000 hsts bool \"true\" hsts-include-subdomains bool \"true\" hsts-max-age string \"15724800\" hsts-preload bool \"false\" keep-alive int 75 keep-alive-requests int 100 large-client-header-buffers string \"4 8k\" log-format-escape-json bool \"false\" log-format-upstream string $remote_addr - $remote_user [$time_local] \"$request\" $status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" $request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id log-format-stream string [$remote_addr] [$time_local] $protocol $status $bytes_sent $bytes_received $session_time enable-multi-accept bool \"true\" max-worker-connections int 16384 max-worker-open-files int 0 map-hash-bucket-size int 64 nginx-status-ipv4-whitelist []string \"127.0.0.1\" nginx-status-ipv6-whitelist []string \"::1\" proxy-real-ip-cidr []string \"0.0.0.0/0\" proxy-set-headers string \"\" server-name-hash-max-size int 1024 server-name-hash-bucket-size int <size of the processor\u2019s cache line> proxy-headers-hash-max-size int 512 proxy-headers-hash-bucket-size int 64 plugins []string reuse-port bool \"true\" server-tokens bool \"true\" ssl-ciphers string \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384\" ssl-ecdh-curve string \"auto\" ssl-dh-param string \"\" ssl-protocols string \"TLSv1.2 TLSv1.3\" ssl-session-cache bool \"true\" ssl-session-cache-size string \"10m\" ssl-session-tickets bool \"true\" ssl-session-ticket-key string <Randomly Generated> ssl-session-timeout string \"10m\" ssl-buffer-size string \"4k\" use-proxy-protocol bool \"false\" proxy-protocol-header-timeout string \"5s\" use-gzip bool \"true\" use-geoip bool \"true\" use-geoip2 bool \"false\" enable-brotli bool \"false\" brotli-level int 4 brotli-types string \"application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" use-http2 bool \"true\" gzip-level int 5 gzip-types string \"application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" worker-processes string <Number of CPUs> worker-cpu-affinity string \"\" worker-shutdown-timeout string \"240s\" load-balance string \"round_robin\" variables-hash-bucket-size int 128 variables-hash-max-size int 2048 upstream-keepalive-connections int 32 upstream-keepalive-timeout int 60 upstream-keepalive-requests int 100 limit-conn-zone-variable string \"$binary_remote_addr\" proxy-stream-timeout string \"600s\" proxy-stream-responses int 1 bind-address []string \"\" use-forwarded-headers bool \"false\" enable-real-ip bool \"false\" forwarded-for-header string \"X-Forwarded-For\" compute-full-forwarded-for bool \"false\" proxy-add-original-uri-header bool \"false\" generate-request-id bool \"true\" enable-opentracing bool \"false\" opentracing-operation-name string \"\" opentracing-location-operation-name string \"\" zipkin-collector-host string \"\" zipkin-collector-port int 9411 zipkin-service-name string \"nginx\" zipkin-sample-rate float 1.0 jaeger-collector-host string \"\" jaeger-collector-port int 6831 jaeger-service-name string \"nginx\" jaeger-sampler-type string \"const\" jaeger-sampler-param string \"1\" jaeger-sampler-host string \"http://127.0.0.1\" jaeger-sampler-port int 5778 jaeger-trace-context-header-name string uber-trace-id jaeger-debug-header string uber-debug-id jaeger-baggage-header string jaeger-baggage jaeger-trace-baggage-header-prefix string uberctx- datadog-collector-host string \"\" datadog-collector-port int 8126 datadog-service-name service \"nginx\" datadog-operation-name-override service \"nginx.handle\" datadog-priority-sampling bool \"true\" datadog-sample-rate float 1.0 main-snippet string \"\" http-snippet string \"\" server-snippet string \"\" location-snippet string \"\" custom-http-errors []int []int{} proxy-body-size string \"1m\" proxy-connect-timeout int 5 proxy-read-timeout int 60 proxy-send-timeout int 60 proxy-buffers-number int 4 proxy-buffer-size string \"4k\" proxy-cookie-path string \"off\" proxy-cookie-domain string \"off\" proxy-next-upstream string \"error timeout\" proxy-next-upstream-timeout int 0 proxy-next-upstream-tries int 3 proxy-redirect-from string \"off\" proxy-request-buffering string \"on\" ssl-redirect bool \"true\" whitelist-source-range []string []string{} skip-access-log-urls []string []string{} limit-rate int 0 limit-rate-after int 0 lua-shared-dicts string \"\" http-redirect-code int 308 proxy-buffering string \"off\" limit-req-status-code int 503 limit-conn-status-code int 503 no-tls-redirect-locations string \"/.well-known/acme-challenge\" global-auth-url string \"\" global-auth-method string \"\" global-auth-signin string \"\" global-auth-response-headers string \"\" global-auth-request-redirect string \"\" global-auth-snippet string \"\" global-auth-cache-key string \"\" global-auth-cache-duration string \"200 202 401 5m\" no-auth-locations string \"/.well-known/acme-challenge\" block-cidrs []string \"\" block-user-agents []string \"\" block-referers []string \"\" proxy-ssl-location-only bool \"false\" default-type string \"text/html\" add-headers \u00b6 Sets custom headers from named configmap before sending traffic to the client. See proxy-set-headers . example allow-backend-server-header \u00b6 Enables the return of the header Server from the backend instead of the generic nginx string. default: is disabled hide-headers \u00b6 Sets additional header that will not be passed from the upstream server to the client response. default: empty References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_hide_header access-log-params \u00b6 Additional params for access_log. For example, buffer=16k, gzip, flush=1m References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log access-log-path \u00b6 Access log path for both http and stream context. Goes to /var/log/nginx/access.log by default. Note: the file /var/log/nginx/access.log is a symlink to /dev/stdout http-access-log-path \u00b6 Access log path for http context globally. default: \"\" Note: If not specified, the access-log-path will be used. stream-access-log-path \u00b6 Access log path for stream context globally. default: \"\" Note: If not specified, the access-log-path will be used. enable-access-log-for-default-backend \u00b6 Enables logging access to default backend. default: is disabled. error-log-path \u00b6 Error log path. Goes to /var/log/nginx/error.log by default. Note: the file /var/log/nginx/error.log is a symlink to /dev/stderr References: http://nginx.org/en/docs/ngx_core_module.html#error_log enable-modsecurity \u00b6 Enables the modsecurity module for NGINX. default: is disabled enable-owasp-modsecurity-crs \u00b6 Enables the OWASP ModSecurity Core Rule Set (CRS). default: is disabled modsecurity-snippet \u00b6 Adds custom rules to modsecurity section of nginx configration client-header-buffer-size \u00b6 Allows to configure a custom buffer size for reading client request header. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_buffer_size client-header-timeout \u00b6 Defines a timeout for reading client request header, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_timeout client-body-buffer-size \u00b6 Sets buffer size for reading client request body. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size client-body-timeout \u00b6 Defines a timeout for reading client request body, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_timeout disable-access-log \u00b6 Disables the Access Log from the entire Ingress Controller. default: '\"false\"' References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log disable-ipv6 \u00b6 Disable listening on IPV6. default: false ; IPv6 listening is enabled disable-ipv6-dns \u00b6 Disable IPV6 for nginx DNS resolver. default: false ; IPv6 resolving enabled. enable-underscores-in-headers \u00b6 Enables underscores in header names. default: is disabled enable-ocsp \u00b6 Enables Online Certificate Status Protocol stapling (OCSP) support. default: is disabled ignore-invalid-headers \u00b6 Set if header fields with invalid names should be ignored. default: is enabled retry-non-idempotent \u00b6 Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error in the upstream server. The previous behavior can be restored using the value \"true\". error-log-level \u00b6 Configures the logging level of errors. Log levels above are listed in the order of increasing severity. References: http://nginx.org/en/docs/ngx_core_module.html#error_log http2-max-field-size \u00b6 Limits the maximum size of an HPACK-compressed request header field. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_field_size http2-max-header-size \u00b6 Limits the maximum size of the entire request header list after HPACK decompression. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_header_size http2-max-requests \u00b6 Sets the maximum number of requests (including push requests) that can be served through one HTTP/2 connection, after which the next client request will lead to connection closing and the need of establishing a new connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_requests http2-max-concurrent-streams \u00b6 Sets the maximum number of concurrent HTTP/2 streams in a connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_concurrent_streams hsts \u00b6 Enables or disables the header HSTS in servers running SSL. HTTP Strict Transport Security (often abbreviated as HSTS) is a security feature (HTTP header) that tell browsers that it should only be communicated with using HTTPS, instead of using HTTP. It provides protection against protocol downgrade attacks and cookie theft. References: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server hsts-include-subdomains \u00b6 Enables or disables the use of HSTS in all the subdomains of the server-name. hsts-max-age \u00b6 Sets the time, in seconds, that the browser should remember that this site is only to be accessed using HTTPS. hsts-preload \u00b6 Enables or disables the preload attribute in the HSTS feature (when it is enabled) dd keep-alive \u00b6 Sets the time during which a keep-alive client connection will stay open on the server side. The zero value disables keep-alive client connections. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_timeout keep-alive-requests \u00b6 Sets the maximum number of requests that can be served through one keep-alive connection. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_requests large-client-header-buffers \u00b6 Sets the maximum number and size of buffers used for reading large client request header. default: 4 8k References: http://nginx.org/en/docs/http/ngx_http_core_module.html#large_client_header_buffers log-format-escape-json \u00b6 Sets if the escape parameter allows JSON (\"true\") or default characters escaping in variables (\"false\") Sets the nginx log format . log-format-upstream \u00b6 Sets the nginx log format . Example for json output: log-format-upstream: ' { \"time\" : \"$time_iso8601\" , \"remote_addr\" : \"$proxy_protocol_addr\" , \"x-forward-for\" : \"$proxy_add_x_forwarded_for\" , \"request_id\" : \"$req_id\" , \"remote_user\" : \"$remote_user\" , \"bytes_sent\" : $bytes_sent , \"request_time\" : $request_time , \"status\" : $status , \"vhost\" : \"$host\" , \"request_proto\" : \"$server_protocol\" , \"path\" : \"$uri\" , \"request_query\" : \"$args\" , \"request_length\" : $request_length , \"duration\" : $request_time , \"method\" : \"$request_method\" , \"http_referrer\" : \"$http_referer\" , \"http_user_agent\" : \"$http_user_agent\" } ' Please check the log-format for definition of each field. log-format-stream \u00b6 Sets the nginx stream format . enable-multi-accept \u00b6 If disabled, a worker process will accept one new connection at a time. Otherwise, a worker process will accept all new connections at a time. default: true References: http://nginx.org/en/docs/ngx_core_module.html#multi_accept max-worker-connections \u00b6 Sets the maximum number of simultaneous connections that can be opened by each worker process. 0 will use the value of max-worker-open-files . default: 16384 Tip Using 0 in scenarios of high load improves performance at the cost of increasing RAM utilization (even on idle). max-worker-open-files \u00b6 Sets the maximum number of files that can be opened by each worker process. The default of 0 means \"max open files (system's limit) / worker-processes - 1024\". default: 0 map-hash-bucket-size \u00b6 Sets the bucket size for the map variables hash tables . The details of setting up hash tables are provided in a separate document . proxy-real-ip-cidr \u00b6 If use-forwarded-headers or use-proxy-protocol is enabled, proxy-real-ip-cidr defines the default the IP/network address of your external load balancer. proxy-set-headers \u00b6 Sets custom headers from named configmap before sending traffic to backends. The value format is namespace/name. See example server-name-hash-max-size \u00b6 Sets the maximum size of the server names hash tables used in server names,map directive\u2019s values, MIME types, names of request header strings, etc. References: http://nginx.org/en/docs/hash.html server-name-hash-bucket-size \u00b6 Sets the size of the bucket for the server names hash tables. References: http://nginx.org/en/docs/hash.html http://nginx.org/en/docs/http/ngx_http_core_module.html#server_names_hash_bucket_size proxy-headers-hash-max-size \u00b6 Sets the maximum size of the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_max_size reuse-port \u00b6 Instructs NGINX to create an individual listening socket for each worker process (using the SO_REUSEPORT socket option), allowing a kernel to distribute incoming connections between worker processes default: true proxy-headers-hash-bucket-size \u00b6 Sets the size of the bucket for the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_bucket_size plugins \u00b6 Activates plugins installed in /etc/nginx/lua/plugins . Refer to ingress-nginx plugins README for more information on how to write and install a plugin. server-tokens \u00b6 Send NGINX Server header in responses and display NGINX version in error pages. default: is enabled ssl-ciphers \u00b6 Sets the ciphers list to enable. The ciphers are specified in the format understood by the OpenSSL library. The default cipher list is: ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 . The ordering of a ciphersuite is very important because it decides which algorithms are going to be selected in priority. The recommendation above prioritizes algorithms that provide perfect forward secrecy . Please check the Mozilla SSL Configuration Generator . Note: ssl_prefer_server_ciphers directive will be enabled by default for http context. ssl-ecdh-curve \u00b6 Specifies a curve for ECDHE ciphers. References: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ecdh_curve ssl-dh-param \u00b6 Sets the name of the secret that contains Diffie-Hellman key to help with \"Perfect Forward Secrecy\". References: https://wiki.openssl.org/index.php/Diffie-Hellman_parameters https://wiki.mozilla.org/Security/Server_Side_TLS#DHE_handshake_and_dhparam http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_dhparam ssl-protocols \u00b6 Sets the SSL protocols to use. The default is: TLSv1.2 TLSv1.3 . Please check the result of the configuration using https://ssllabs.com/ssltest/analyze.html or https://testssl.sh . ssl-early-data \u00b6 Enables or disables TLS 1.3 early data , also known as Zero Round Trip Time Resumption (0-RTT). This requires ssl-protocols to have TLSv1.3 enabled. Enable this with caution, because requests sent within early data are subject to replay attacks . ssl_early_data . The default is: false . ssl-session-cache \u00b6 Enables or disables the use of shared SSL cache among worker processes. ssl-session-cache-size \u00b6 Sets the size of the SSL shared session cache between all worker processes. ssl-session-tickets \u00b6 Enables or disables session resumption through TLS session tickets . ssl-session-ticket-key \u00b6 Sets the secret key used to encrypt and decrypt TLS session tickets. The value must be a valid base64 string. To create a ticket: openssl rand 80 | openssl enc -A -base64 TLS session ticket-key , by default, a randomly generated key is used. ssl-session-timeout \u00b6 Sets the time during which a client may reuse the session parameters stored in a cache. ssl-buffer-size \u00b6 Sets the size of the SSL buffer used for sending data. The default of 4k helps NGINX to improve TLS Time To First Byte (TTTFB). References: https://www.igvita.com/2013/12/16/optimizing-nginx-tls-time-to-first-byte/ use-proxy-protocol \u00b6 Enables or disables the PROXY protocol to receive client connection (real IP address) information passed through proxy servers and load balancers such as HAProxy and Amazon Elastic Load Balancer (ELB). proxy-protocol-header-timeout \u00b6 Sets the timeout value for receiving the proxy-protocol headers. The default of 5 seconds prevents the TLS passthrough handler from waiting indefinitely on a dropped connection. default: 5s use-gzip \u00b6 Enables or disables compression of HTTP responses using the \"gzip\" module . MIME types to compress are controlled by gzip-types . default: true use-geoip \u00b6 Enables or disables \"geoip\" module that creates variables with values depending on the client IP address, using the precompiled MaxMind databases. default: true Note: MaxMind legacy databases are discontinued and will not receive updates after 2019-01-02, cf. discontinuation notice . Consider use-geoip2 below. use-geoip2 \u00b6 Enables the geoip2 module for NGINX. Since 0.27.0 and due to a change in the MaxMind databases a license is required to have access to the databases. For this reason, it is required to define a new flag --maxmind-license-key in the ingress controller deployment to download the databases needed during the initialization of the ingress controller. Alternatively, it is possible to use a volume to mount the files /etc/nginx/geoip/GeoLite2-City.mmdb and /etc/nginx/geoip/GeoLite2-ASN.mmdb , avoiding the overhead of the download. Important If the feature is enabled but the files are missing, GeoIP2 will not be enabled. default: false enable-brotli \u00b6 Enables or disables compression of HTTP responses using the \"brotli\" module . The default mime type list to compress is: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . default: is disabled Note: Brotli does not works in Safari < 11. For more information see https://caniuse.com/#feat=brotli brotli-level \u00b6 Sets the Brotli Compression Level that will be used. default: 4 brotli-types \u00b6 Sets the MIME Types that will be compressed on-the-fly by brotli. default: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component use-http2 \u00b6 Enables or disables HTTP/2 support in secure connections. gzip-level \u00b6 Sets the gzip Compression Level that will be used. default: 5 gzip-min-length \u00b6 Minimum length of responses to be returned to the client before it is eligible for gzip compression, in bytes. default: 256 gzip-types \u00b6 Sets the MIME types in addition to \"text/html\" to compress. The special value \"*\" matches any MIME type. Responses with the \"text/html\" type are always compressed if use-gzip is enabled. default: application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . worker-processes \u00b6 Sets the number of worker processes . The default of \"auto\" means number of available CPU cores. worker-cpu-affinity \u00b6 Binds worker processes to the sets of CPUs. worker_cpu_affinity . By default worker processes are not bound to any specific CPUs. The value can be: \"\": empty string indicate no affinity is applied. cpumask: e.g. 0001 0010 0100 1000 to bind processes to specific cpus. auto: binding worker processes automatically to available CPUs. worker-shutdown-timeout \u00b6 Sets a timeout for Nginx to wait for worker to gracefully shutdown . default: \"240s\" load-balance \u00b6 Sets the algorithm to use for load balancing. The value can either be: round_robin: to use the default round robin loadbalancer ewma: to use the Peak EWMA method for routing ( implementation ) The default is round_robin . To load balance using consistent hashing of IP or other variables, consider the nginx.ingress.kubernetes.io/upstream-hash-by annotation. To load balance using session cookies, consider the nginx.ingress.kubernetes.io/affinity annotation. References: http://nginx.org/en/docs/http/load_balancing.html variables-hash-bucket-size \u00b6 Sets the bucket size for the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_bucket_size variables-hash-max-size \u00b6 Sets the maximum size of the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_max_size upstream-keepalive-connections \u00b6 Activates the cache for connections to upstream servers. The connections parameter sets the maximum number of idle keepalive connections to upstream servers that are preserved in the cache of each worker process. When this number is exceeded, the least recently used connections are closed. default: 32 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive upstream-keepalive-timeout \u00b6 Sets a timeout during which an idle keepalive connection to an upstream server will stay open. default: 60 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_timeout upstream-keepalive-requests \u00b6 Sets the maximum number of requests that can be served through one keepalive connection. After the maximum number of requests is made, the connection is closed. default: 100 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_requests limit-conn-zone-variable \u00b6 Sets parameters for a shared memory zone that will keep states for various keys of limit_conn_zone . The default of \"$binary_remote_addr\" variable\u2019s size is always 4 bytes for IPv4 addresses or 16 bytes for IPv6 addresses. proxy-stream-timeout \u00b6 Sets the timeout between two successive read or write operations on client or proxied server connections. If no data is transmitted within this time, the connection is closed. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_timeout proxy-stream-responses \u00b6 Sets the number of datagrams expected from the proxied server in response to the client request if the UDP protocol is used. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_responses bind-address \u00b6 Sets the addresses on which the server will accept requests instead of *. It should be noted that these addresses must exist in the runtime environment or the controller will crash loop. use-forwarded-headers \u00b6 If true, NGINX passes the incoming X-Forwarded-* headers to upstreams. Use this option when NGINX is behind another L7 proxy / load balancer that is setting these headers. If false, NGINX ignores incoming X-Forwarded-* headers, filling them with the request information it sees. Use this option if NGINX is exposed directly to the internet, or it's behind a L3/packet-based load balancer that doesn't alter the source IP in the packets. enable-real-ip \u00b6 enable-real-ip enables the configuration of http://nginx.org/en/docs/http/ngx_http_realip_module.html . Specific attributes of the module can be configured further by using forwarded-for-header and proxy-real-ip-cidr settings. forwarded-for-header \u00b6 Sets the header field for identifying the originating IP address of a client. default: X-Forwarded-For compute-full-forwarded-for \u00b6 Append the remote address to the X-Forwarded-For header instead of replacing it. When this option is enabled, the upstream application is responsible for extracting the client IP based on its own list of trusted proxies. proxy-add-original-uri-header \u00b6 Adds an X-Original-Uri header with the original request URI to the backend request generate-request-id \u00b6 Ensures that X-Request-ID is defaulted to a random value, if no X-Request-ID is present in the request enable-opentracing \u00b6 Enables the nginx Opentracing extension. default: is disabled References: https://github.com/opentracing-contrib/nginx-opentracing opentracing-operation-name \u00b6 Specifies a custom name for the server span. default: is empty For example, set to \"HTTP $request_method $uri\". opentracing-location-operation-name \u00b6 Specifies a custom name for the location span. default: is empty For example, set to \"HTTP $request_method $uri\". zipkin-collector-host \u00b6 Specifies the host to use when uploading traces. It must be a valid URL. zipkin-collector-port \u00b6 Specifies the port to use when uploading traces. default: 9411 zipkin-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx zipkin-sample-rate \u00b6 Specifies sample rate for any traces created. default: 1.0 jaeger-collector-host \u00b6 Specifies the host to use when uploading traces. It must be a valid URL. jaeger-collector-port \u00b6 Specifies the port to use when uploading traces. default: 6831 jaeger-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx jaeger-sampler-type \u00b6 Specifies the sampler to be used when sampling traces. The available samplers are: const, probabilistic, ratelimiting, remote. default: const jaeger-sampler-param \u00b6 Specifies the argument to be passed to the sampler constructor. Must be a number. For const this should be 0 to never sample and 1 to always sample. default: 1 jaeger-sampler-host \u00b6 Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. Leave blank to use default value (localhost). default: http://127.0.0.1 jaeger-sampler-port \u00b6 Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. default: 5778 jaeger-trace-context-header-name \u00b6 Specifies the header name used for passing trace context. default: uber-trace-id jaeger-debug-header \u00b6 Specifies the header name used for force sampling. default: jaeger-debug-id jaeger-baggage-header \u00b6 Specifies the header name used to submit baggage if there is no root span. default: jaeger-baggage jaeger-tracer-baggage-header-prefix \u00b6 Specifies the header prefix used to propagate baggage. default: uberctx- datadog-collector-host \u00b6 Specifies the datadog agent host to use when uploading traces. It must be a valid URL. datadog-collector-port \u00b6 Specifies the port to use when uploading traces. default: 8126 datadog-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx datadog-operation-name-override \u00b6 Overrides the operation naem to use for any traces crated. default: nginx.handle datadog-priority-sampling \u00b6 Specifies to use client-side sampling. If true disables client-side sampling (thus ignoring sample_rate ) and enables distributed priority sampling, where traces are sampled based on a combination of user-assigned priorities and configuration from the agent. default: true datadog-sample-rate \u00b6 Specifies sample rate for any traces created. This is effective only when datadog-priority-sampling is false default: 1.0 main-snippet \u00b6 Adds custom configuration to the main section of the nginx configuration. http-snippet \u00b6 Adds custom configuration to the http section of the nginx configuration. server-snippet \u00b6 Adds custom configuration to all the servers in the nginx configuration. location-snippet \u00b6 Adds custom configuration to all the locations in the nginx configuration. You can not use this to add new locations that proxy to the Kubernetes pods, as the snippet does not have access to the Go template functions. If you want to add custom locations you will have to provide your own nginx.tmpl . custom-http-errors \u00b6 Enables which HTTP codes should be passed for processing with the error_page directive Setting at least one code also enables proxy_intercept_errors which are required to process error_page. Example usage: custom-http-errors: 404,415 proxy-body-size \u00b6 Sets the maximum allowed size of the client request body. See NGINX client_max_body_size . proxy-connect-timeout \u00b6 Sets the timeout for establishing a connection with a proxied server . It should be noted that this timeout cannot usually exceed 75 seconds. proxy-read-timeout \u00b6 Sets the timeout in seconds for reading a response from the proxied server . The timeout is set only between two successive read operations, not for the transmission of the whole response. proxy-send-timeout \u00b6 Sets the timeout in seconds for transmitting a request to the proxied server . The timeout is set only between two successive write operations, not for the transmission of the whole request. proxy-buffers-number \u00b6 Sets the number of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header. proxy-buffer-size \u00b6 Sets the size of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header. proxy-cookie-path \u00b6 Sets a text that should be changed in the path attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response. proxy-cookie-domain \u00b6 Sets a text that should be changed in the domain attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response. proxy-next-upstream \u00b6 Specifies in which cases a request should be passed to the next server. proxy-next-upstream-timeout \u00b6 Limits the time in seconds during which a request can be passed to the next server. proxy-next-upstream-tries \u00b6 Limit the number of possible tries a request should be passed to the next server. proxy-redirect-from \u00b6 Sets the original text that should be changed in the \"Location\" and \"Refresh\" header fields of a proxied server response. default: off References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_redirect proxy-request-buffering \u00b6 Enables or disables buffering of a client request body . ssl-redirect \u00b6 Sets the global value of redirects (301) to HTTPS if the server has a TLS certificate (defined in an Ingress rule). default: \"true\" whitelist-source-range \u00b6 Sets the default whitelisted IPs for each server block. This can be overwritten by an annotation on an Ingress rule. See ngx_http_access_module . skip-access-log-urls \u00b6 Sets a list of URLs that should not appear in the NGINX access log. This is useful with urls like /health or health-check that make \"complex\" reading the logs. default: is empty limit-rate \u00b6 Limits the rate of response transmission to a client. The rate is specified in bytes per second. The zero value disables rate limiting. The limit is set per a request, and so if a client simultaneously opens two connections, the overall rate will be twice as much as the specified limit. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate limit-rate-after \u00b6 Sets the initial amount after which the further transmission of a response to a client will be rate limited. lua-shared-dicts \u00b6 Customize default Lua shared dictionaries or define more. You can use the following syntax to do so: lua-shared-dicts: \"<my dict name>: <my dict size>, [<my dict name>: <my dict size>], ...\" For example following will set default certificate_data dictionary to 100M and will introduce a new dictionary called my_custom_plugin : lua-shared-dicts: \"certificate_data: 100, my_custom_plugin: 5\" References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate_after http-redirect-code \u00b6 Sets the HTTP status code to be used in redirects. Supported codes are 301 , 302 , 307 and 308 default: 308 Why the default code is 308? RFC 7238 was created to define the 308 (Permanent Redirect) status code that is similar to 301 (Moved Permanently) but it keeps the payload in the redirect. This is important if we send a redirect in methods like POST. proxy-buffering \u00b6 Enables or disables buffering of responses from the proxied server . limit-req-status-code \u00b6 Sets the status code to return in response to rejected requests . default: 503 limit-conn-status-code \u00b6 Sets the status code to return in response to rejected connections . default: 503 no-tls-redirect-locations \u00b6 A comma-separated list of locations on which http requests will never get redirected to their https counterpart. default: \"/.well-known/acme-challenge\" global-auth-url \u00b6 A url to an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-url . Locations that should not get authenticated can be listed using no-auth-locations See no-auth-locations . In addition, each service can be excluded from authentication via annotation enable-global-auth set to \"false\". default: \"\" References: https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md#external-authentication global-auth-method \u00b6 A HTTP method to use for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-method . default: \"\" global-auth-signin \u00b6 Sets the location of the error page for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-signin . default: \"\" global-auth-response-headers \u00b6 Sets the headers to pass to backend once authentication request completes. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-response-headers . default: \"\" global-auth-request-redirect \u00b6 Sets the X-Auth-Request-Redirect header value. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\" global-auth-snippet \u00b6 Sets a custom snippet to use with external authentication. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\" global-auth-cache-key \u00b6 Enables caching for global auth requests. Specify a lookup key for auth responses, e.g. $remote_user$http_authorization . global-auth-cache-duration \u00b6 Set a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . no-auth-locations \u00b6 A comma-separated list of locations that should not get authenticated. default: \"/.well-known/acme-challenge\" block-cidrs \u00b6 A comma-separated list of IP addresses (or subnets), request from which have to be blocked globally. References: http://nginx.org/en/docs/http/ngx_http_access_module.html#deny block-user-agents \u00b6 A comma-separated list of User-Agent, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map block-referers \u00b6 A comma-separated list of Referers, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map proxy-ssl-location-only \u00b6 Set if proxy-ssl parameters should be applied only on locations and not on servers. default: is disabled default-type \u00b6 Sets the default MIME type of a response. default: text/html References: http://nginx.org/en/docs/http/ngx_http_core_module.html#default_type","title":"ConfigMap"},{"location":"user-guide/nginx-configuration/configmap/#configmaps","text":"ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. The ConfigMap API resource stores configuration data as key-value pairs. The data provides the configurations for system components for the nginx-controller. In order to overwrite nginx-controller configuration values as seen in config.go , you can add key-value pairs to the data section of the config-map. For Example: data : map-hash-bucket-size : \"128\" ssl-protocols : SSLv2 Important The key and values in a ConfigMap can only be strings. This means that we want a value with boolean values we need to quote the values, like \"true\" or \"false\". Same for numbers, like \"100\". \"Slice\" types (defined below as []string or []int ) can be provided as a comma-delimited string.","title":"ConfigMaps"},{"location":"user-guide/nginx-configuration/configmap/#configuration-options","text":"The following table shows a configuration option's name, type, and the default value: name type default add-headers string \"\" allow-backend-server-header bool \"false\" hide-headers string array empty access-log-params string \"\" access-log-path string \"/var/log/nginx/access.log\" http-access-log-path string \"\" stream-access-log-path string \"\" enable-access-log-for-default-backend bool \"false\" error-log-path string \"/var/log/nginx/error.log\" enable-modsecurity bool \"false\" modsecurity-snippet string \"\" enable-owasp-modsecurity-crs bool \"false\" client-header-buffer-size string \"1k\" client-header-timeout int 60 client-body-buffer-size string \"8k\" client-body-timeout int 60 disable-access-log bool false disable-ipv6 bool false disable-ipv6-dns bool false enable-underscores-in-headers bool false enable-ocsp bool false ignore-invalid-headers bool true retry-non-idempotent bool \"false\" error-log-level string \"notice\" http2-max-field-size string \"4k\" http2-max-header-size string \"16k\" http2-max-requests int 1000 http2-max-concurrent-streams int 1000 hsts bool \"true\" hsts-include-subdomains bool \"true\" hsts-max-age string \"15724800\" hsts-preload bool \"false\" keep-alive int 75 keep-alive-requests int 100 large-client-header-buffers string \"4 8k\" log-format-escape-json bool \"false\" log-format-upstream string $remote_addr - $remote_user [$time_local] \"$request\" $status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" $request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id log-format-stream string [$remote_addr] [$time_local] $protocol $status $bytes_sent $bytes_received $session_time enable-multi-accept bool \"true\" max-worker-connections int 16384 max-worker-open-files int 0 map-hash-bucket-size int 64 nginx-status-ipv4-whitelist []string \"127.0.0.1\" nginx-status-ipv6-whitelist []string \"::1\" proxy-real-ip-cidr []string \"0.0.0.0/0\" proxy-set-headers string \"\" server-name-hash-max-size int 1024 server-name-hash-bucket-size int <size of the processor\u2019s cache line> proxy-headers-hash-max-size int 512 proxy-headers-hash-bucket-size int 64 plugins []string reuse-port bool \"true\" server-tokens bool \"true\" ssl-ciphers string \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384\" ssl-ecdh-curve string \"auto\" ssl-dh-param string \"\" ssl-protocols string \"TLSv1.2 TLSv1.3\" ssl-session-cache bool \"true\" ssl-session-cache-size string \"10m\" ssl-session-tickets bool \"true\" ssl-session-ticket-key string <Randomly Generated> ssl-session-timeout string \"10m\" ssl-buffer-size string \"4k\" use-proxy-protocol bool \"false\" proxy-protocol-header-timeout string \"5s\" use-gzip bool \"true\" use-geoip bool \"true\" use-geoip2 bool \"false\" enable-brotli bool \"false\" brotli-level int 4 brotli-types string \"application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" use-http2 bool \"true\" gzip-level int 5 gzip-types string \"application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" worker-processes string <Number of CPUs> worker-cpu-affinity string \"\" worker-shutdown-timeout string \"240s\" load-balance string \"round_robin\" variables-hash-bucket-size int 128 variables-hash-max-size int 2048 upstream-keepalive-connections int 32 upstream-keepalive-timeout int 60 upstream-keepalive-requests int 100 limit-conn-zone-variable string \"$binary_remote_addr\" proxy-stream-timeout string \"600s\" proxy-stream-responses int 1 bind-address []string \"\" use-forwarded-headers bool \"false\" enable-real-ip bool \"false\" forwarded-for-header string \"X-Forwarded-For\" compute-full-forwarded-for bool \"false\" proxy-add-original-uri-header bool \"false\" generate-request-id bool \"true\" enable-opentracing bool \"false\" opentracing-operation-name string \"\" opentracing-location-operation-name string \"\" zipkin-collector-host string \"\" zipkin-collector-port int 9411 zipkin-service-name string \"nginx\" zipkin-sample-rate float 1.0 jaeger-collector-host string \"\" jaeger-collector-port int 6831 jaeger-service-name string \"nginx\" jaeger-sampler-type string \"const\" jaeger-sampler-param string \"1\" jaeger-sampler-host string \"http://127.0.0.1\" jaeger-sampler-port int 5778 jaeger-trace-context-header-name string uber-trace-id jaeger-debug-header string uber-debug-id jaeger-baggage-header string jaeger-baggage jaeger-trace-baggage-header-prefix string uberctx- datadog-collector-host string \"\" datadog-collector-port int 8126 datadog-service-name service \"nginx\" datadog-operation-name-override service \"nginx.handle\" datadog-priority-sampling bool \"true\" datadog-sample-rate float 1.0 main-snippet string \"\" http-snippet string \"\" server-snippet string \"\" location-snippet string \"\" custom-http-errors []int []int{} proxy-body-size string \"1m\" proxy-connect-timeout int 5 proxy-read-timeout int 60 proxy-send-timeout int 60 proxy-buffers-number int 4 proxy-buffer-size string \"4k\" proxy-cookie-path string \"off\" proxy-cookie-domain string \"off\" proxy-next-upstream string \"error timeout\" proxy-next-upstream-timeout int 0 proxy-next-upstream-tries int 3 proxy-redirect-from string \"off\" proxy-request-buffering string \"on\" ssl-redirect bool \"true\" whitelist-source-range []string []string{} skip-access-log-urls []string []string{} limit-rate int 0 limit-rate-after int 0 lua-shared-dicts string \"\" http-redirect-code int 308 proxy-buffering string \"off\" limit-req-status-code int 503 limit-conn-status-code int 503 no-tls-redirect-locations string \"/.well-known/acme-challenge\" global-auth-url string \"\" global-auth-method string \"\" global-auth-signin string \"\" global-auth-response-headers string \"\" global-auth-request-redirect string \"\" global-auth-snippet string \"\" global-auth-cache-key string \"\" global-auth-cache-duration string \"200 202 401 5m\" no-auth-locations string \"/.well-known/acme-challenge\" block-cidrs []string \"\" block-user-agents []string \"\" block-referers []string \"\" proxy-ssl-location-only bool \"false\" default-type string \"text/html\"","title":"Configuration options"},{"location":"user-guide/nginx-configuration/configmap/#add-headers","text":"Sets custom headers from named configmap before sending traffic to the client. See proxy-set-headers . example","title":"add-headers"},{"location":"user-guide/nginx-configuration/configmap/#allow-backend-server-header","text":"Enables the return of the header Server from the backend instead of the generic nginx string. default: is disabled","title":"allow-backend-server-header"},{"location":"user-guide/nginx-configuration/configmap/#hide-headers","text":"Sets additional header that will not be passed from the upstream server to the client response. default: empty References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_hide_header","title":"hide-headers"},{"location":"user-guide/nginx-configuration/configmap/#access-log-params","text":"Additional params for access_log. For example, buffer=16k, gzip, flush=1m References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log","title":"access-log-params"},{"location":"user-guide/nginx-configuration/configmap/#access-log-path","text":"Access log path for both http and stream context. Goes to /var/log/nginx/access.log by default. Note: the file /var/log/nginx/access.log is a symlink to /dev/stdout","title":"access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#http-access-log-path","text":"Access log path for http context globally. default: \"\" Note: If not specified, the access-log-path will be used.","title":"http-access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#stream-access-log-path","text":"Access log path for stream context globally. default: \"\" Note: If not specified, the access-log-path will be used.","title":"stream-access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#enable-access-log-for-default-backend","text":"Enables logging access to default backend. default: is disabled.","title":"enable-access-log-for-default-backend"},{"location":"user-guide/nginx-configuration/configmap/#error-log-path","text":"Error log path. Goes to /var/log/nginx/error.log by default. Note: the file /var/log/nginx/error.log is a symlink to /dev/stderr References: http://nginx.org/en/docs/ngx_core_module.html#error_log","title":"error-log-path"},{"location":"user-guide/nginx-configuration/configmap/#enable-modsecurity","text":"Enables the modsecurity module for NGINX. default: is disabled","title":"enable-modsecurity"},{"location":"user-guide/nginx-configuration/configmap/#enable-owasp-modsecurity-crs","text":"Enables the OWASP ModSecurity Core Rule Set (CRS). default: is disabled","title":"enable-owasp-modsecurity-crs"},{"location":"user-guide/nginx-configuration/configmap/#modsecurity-snippet","text":"Adds custom rules to modsecurity section of nginx configration","title":"modsecurity-snippet"},{"location":"user-guide/nginx-configuration/configmap/#client-header-buffer-size","text":"Allows to configure a custom buffer size for reading client request header. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_buffer_size","title":"client-header-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#client-header-timeout","text":"Defines a timeout for reading client request header, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_timeout","title":"client-header-timeout"},{"location":"user-guide/nginx-configuration/configmap/#client-body-buffer-size","text":"Sets buffer size for reading client request body. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size","title":"client-body-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#client-body-timeout","text":"Defines a timeout for reading client request body, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_timeout","title":"client-body-timeout"},{"location":"user-guide/nginx-configuration/configmap/#disable-access-log","text":"Disables the Access Log from the entire Ingress Controller. default: '\"false\"' References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log","title":"disable-access-log"},{"location":"user-guide/nginx-configuration/configmap/#disable-ipv6","text":"Disable listening on IPV6. default: false ; IPv6 listening is enabled","title":"disable-ipv6"},{"location":"user-guide/nginx-configuration/configmap/#disable-ipv6-dns","text":"Disable IPV6 for nginx DNS resolver. default: false ; IPv6 resolving enabled.","title":"disable-ipv6-dns"},{"location":"user-guide/nginx-configuration/configmap/#enable-underscores-in-headers","text":"Enables underscores in header names. default: is disabled","title":"enable-underscores-in-headers"},{"location":"user-guide/nginx-configuration/configmap/#enable-ocsp","text":"Enables Online Certificate Status Protocol stapling (OCSP) support. default: is disabled","title":"enable-ocsp"},{"location":"user-guide/nginx-configuration/configmap/#ignore-invalid-headers","text":"Set if header fields with invalid names should be ignored. default: is enabled","title":"ignore-invalid-headers"},{"location":"user-guide/nginx-configuration/configmap/#retry-non-idempotent","text":"Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error in the upstream server. The previous behavior can be restored using the value \"true\".","title":"retry-non-idempotent"},{"location":"user-guide/nginx-configuration/configmap/#error-log-level","text":"Configures the logging level of errors. Log levels above are listed in the order of increasing severity. References: http://nginx.org/en/docs/ngx_core_module.html#error_log","title":"error-log-level"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-field-size","text":"Limits the maximum size of an HPACK-compressed request header field. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_field_size","title":"http2-max-field-size"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-header-size","text":"Limits the maximum size of the entire request header list after HPACK decompression. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_header_size","title":"http2-max-header-size"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-requests","text":"Sets the maximum number of requests (including push requests) that can be served through one HTTP/2 connection, after which the next client request will lead to connection closing and the need of establishing a new connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_requests","title":"http2-max-requests"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-concurrent-streams","text":"Sets the maximum number of concurrent HTTP/2 streams in a connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_concurrent_streams","title":"http2-max-concurrent-streams"},{"location":"user-guide/nginx-configuration/configmap/#hsts","text":"Enables or disables the header HSTS in servers running SSL. HTTP Strict Transport Security (often abbreviated as HSTS) is a security feature (HTTP header) that tell browsers that it should only be communicated with using HTTPS, instead of using HTTP. It provides protection against protocol downgrade attacks and cookie theft. References: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server","title":"hsts"},{"location":"user-guide/nginx-configuration/configmap/#hsts-include-subdomains","text":"Enables or disables the use of HSTS in all the subdomains of the server-name.","title":"hsts-include-subdomains"},{"location":"user-guide/nginx-configuration/configmap/#hsts-max-age","text":"Sets the time, in seconds, that the browser should remember that this site is only to be accessed using HTTPS.","title":"hsts-max-age"},{"location":"user-guide/nginx-configuration/configmap/#hsts-preload","text":"Enables or disables the preload attribute in the HSTS feature (when it is enabled) dd","title":"hsts-preload"},{"location":"user-guide/nginx-configuration/configmap/#keep-alive","text":"Sets the time during which a keep-alive client connection will stay open on the server side. The zero value disables keep-alive client connections. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_timeout","title":"keep-alive"},{"location":"user-guide/nginx-configuration/configmap/#keep-alive-requests","text":"Sets the maximum number of requests that can be served through one keep-alive connection. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_requests","title":"keep-alive-requests"},{"location":"user-guide/nginx-configuration/configmap/#large-client-header-buffers","text":"Sets the maximum number and size of buffers used for reading large client request header. default: 4 8k References: http://nginx.org/en/docs/http/ngx_http_core_module.html#large_client_header_buffers","title":"large-client-header-buffers"},{"location":"user-guide/nginx-configuration/configmap/#log-format-escape-json","text":"Sets if the escape parameter allows JSON (\"true\") or default characters escaping in variables (\"false\") Sets the nginx log format .","title":"log-format-escape-json"},{"location":"user-guide/nginx-configuration/configmap/#log-format-upstream","text":"Sets the nginx log format . Example for json output: log-format-upstream: ' { \"time\" : \"$time_iso8601\" , \"remote_addr\" : \"$proxy_protocol_addr\" , \"x-forward-for\" : \"$proxy_add_x_forwarded_for\" , \"request_id\" : \"$req_id\" , \"remote_user\" : \"$remote_user\" , \"bytes_sent\" : $bytes_sent , \"request_time\" : $request_time , \"status\" : $status , \"vhost\" : \"$host\" , \"request_proto\" : \"$server_protocol\" , \"path\" : \"$uri\" , \"request_query\" : \"$args\" , \"request_length\" : $request_length , \"duration\" : $request_time , \"method\" : \"$request_method\" , \"http_referrer\" : \"$http_referer\" , \"http_user_agent\" : \"$http_user_agent\" } ' Please check the log-format for definition of each field.","title":"log-format-upstream"},{"location":"user-guide/nginx-configuration/configmap/#log-format-stream","text":"Sets the nginx stream format .","title":"log-format-stream"},{"location":"user-guide/nginx-configuration/configmap/#enable-multi-accept","text":"If disabled, a worker process will accept one new connection at a time. Otherwise, a worker process will accept all new connections at a time. default: true References: http://nginx.org/en/docs/ngx_core_module.html#multi_accept","title":"enable-multi-accept"},{"location":"user-guide/nginx-configuration/configmap/#max-worker-connections","text":"Sets the maximum number of simultaneous connections that can be opened by each worker process. 0 will use the value of max-worker-open-files . default: 16384 Tip Using 0 in scenarios of high load improves performance at the cost of increasing RAM utilization (even on idle).","title":"max-worker-connections"},{"location":"user-guide/nginx-configuration/configmap/#max-worker-open-files","text":"Sets the maximum number of files that can be opened by each worker process. The default of 0 means \"max open files (system's limit) / worker-processes - 1024\". default: 0","title":"max-worker-open-files"},{"location":"user-guide/nginx-configuration/configmap/#map-hash-bucket-size","text":"Sets the bucket size for the map variables hash tables . The details of setting up hash tables are provided in a separate document .","title":"map-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-real-ip-cidr","text":"If use-forwarded-headers or use-proxy-protocol is enabled, proxy-real-ip-cidr defines the default the IP/network address of your external load balancer.","title":"proxy-real-ip-cidr"},{"location":"user-guide/nginx-configuration/configmap/#proxy-set-headers","text":"Sets custom headers from named configmap before sending traffic to backends. The value format is namespace/name. See example","title":"proxy-set-headers"},{"location":"user-guide/nginx-configuration/configmap/#server-name-hash-max-size","text":"Sets the maximum size of the server names hash tables used in server names,map directive\u2019s values, MIME types, names of request header strings, etc. References: http://nginx.org/en/docs/hash.html","title":"server-name-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#server-name-hash-bucket-size","text":"Sets the size of the bucket for the server names hash tables. References: http://nginx.org/en/docs/hash.html http://nginx.org/en/docs/http/ngx_http_core_module.html#server_names_hash_bucket_size","title":"server-name-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-headers-hash-max-size","text":"Sets the maximum size of the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_max_size","title":"proxy-headers-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#reuse-port","text":"Instructs NGINX to create an individual listening socket for each worker process (using the SO_REUSEPORT socket option), allowing a kernel to distribute incoming connections between worker processes default: true","title":"reuse-port"},{"location":"user-guide/nginx-configuration/configmap/#proxy-headers-hash-bucket-size","text":"Sets the size of the bucket for the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_bucket_size","title":"proxy-headers-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#plugins","text":"Activates plugins installed in /etc/nginx/lua/plugins . Refer to ingress-nginx plugins README for more information on how to write and install a plugin.","title":"plugins"},{"location":"user-guide/nginx-configuration/configmap/#server-tokens","text":"Send NGINX Server header in responses and display NGINX version in error pages. default: is enabled","title":"server-tokens"},{"location":"user-guide/nginx-configuration/configmap/#ssl-ciphers","text":"Sets the ciphers list to enable. The ciphers are specified in the format understood by the OpenSSL library. The default cipher list is: ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 . The ordering of a ciphersuite is very important because it decides which algorithms are going to be selected in priority. The recommendation above prioritizes algorithms that provide perfect forward secrecy . Please check the Mozilla SSL Configuration Generator . Note: ssl_prefer_server_ciphers directive will be enabled by default for http context.","title":"ssl-ciphers"},{"location":"user-guide/nginx-configuration/configmap/#ssl-ecdh-curve","text":"Specifies a curve for ECDHE ciphers. References: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ecdh_curve","title":"ssl-ecdh-curve"},{"location":"user-guide/nginx-configuration/configmap/#ssl-dh-param","text":"Sets the name of the secret that contains Diffie-Hellman key to help with \"Perfect Forward Secrecy\". References: https://wiki.openssl.org/index.php/Diffie-Hellman_parameters https://wiki.mozilla.org/Security/Server_Side_TLS#DHE_handshake_and_dhparam http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_dhparam","title":"ssl-dh-param"},{"location":"user-guide/nginx-configuration/configmap/#ssl-protocols","text":"Sets the SSL protocols to use. The default is: TLSv1.2 TLSv1.3 . Please check the result of the configuration using https://ssllabs.com/ssltest/analyze.html or https://testssl.sh .","title":"ssl-protocols"},{"location":"user-guide/nginx-configuration/configmap/#ssl-early-data","text":"Enables or disables TLS 1.3 early data , also known as Zero Round Trip Time Resumption (0-RTT). This requires ssl-protocols to have TLSv1.3 enabled. Enable this with caution, because requests sent within early data are subject to replay attacks . ssl_early_data . The default is: false .","title":"ssl-early-data"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-cache","text":"Enables or disables the use of shared SSL cache among worker processes.","title":"ssl-session-cache"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-cache-size","text":"Sets the size of the SSL shared session cache between all worker processes.","title":"ssl-session-cache-size"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-tickets","text":"Enables or disables session resumption through TLS session tickets .","title":"ssl-session-tickets"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-ticket-key","text":"Sets the secret key used to encrypt and decrypt TLS session tickets. The value must be a valid base64 string. To create a ticket: openssl rand 80 | openssl enc -A -base64 TLS session ticket-key , by default, a randomly generated key is used.","title":"ssl-session-ticket-key"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-timeout","text":"Sets the time during which a client may reuse the session parameters stored in a cache.","title":"ssl-session-timeout"},{"location":"user-guide/nginx-configuration/configmap/#ssl-buffer-size","text":"Sets the size of the SSL buffer used for sending data. The default of 4k helps NGINX to improve TLS Time To First Byte (TTTFB). References: https://www.igvita.com/2013/12/16/optimizing-nginx-tls-time-to-first-byte/","title":"ssl-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#use-proxy-protocol","text":"Enables or disables the PROXY protocol to receive client connection (real IP address) information passed through proxy servers and load balancers such as HAProxy and Amazon Elastic Load Balancer (ELB).","title":"use-proxy-protocol"},{"location":"user-guide/nginx-configuration/configmap/#proxy-protocol-header-timeout","text":"Sets the timeout value for receiving the proxy-protocol headers. The default of 5 seconds prevents the TLS passthrough handler from waiting indefinitely on a dropped connection. default: 5s","title":"proxy-protocol-header-timeout"},{"location":"user-guide/nginx-configuration/configmap/#use-gzip","text":"Enables or disables compression of HTTP responses using the \"gzip\" module . MIME types to compress are controlled by gzip-types . default: true","title":"use-gzip"},{"location":"user-guide/nginx-configuration/configmap/#use-geoip","text":"Enables or disables \"geoip\" module that creates variables with values depending on the client IP address, using the precompiled MaxMind databases. default: true Note: MaxMind legacy databases are discontinued and will not receive updates after 2019-01-02, cf. discontinuation notice . Consider use-geoip2 below.","title":"use-geoip"},{"location":"user-guide/nginx-configuration/configmap/#use-geoip2","text":"Enables the geoip2 module for NGINX. Since 0.27.0 and due to a change in the MaxMind databases a license is required to have access to the databases. For this reason, it is required to define a new flag --maxmind-license-key in the ingress controller deployment to download the databases needed during the initialization of the ingress controller. Alternatively, it is possible to use a volume to mount the files /etc/nginx/geoip/GeoLite2-City.mmdb and /etc/nginx/geoip/GeoLite2-ASN.mmdb , avoiding the overhead of the download. Important If the feature is enabled but the files are missing, GeoIP2 will not be enabled. default: false","title":"use-geoip2"},{"location":"user-guide/nginx-configuration/configmap/#enable-brotli","text":"Enables or disables compression of HTTP responses using the \"brotli\" module . The default mime type list to compress is: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . default: is disabled Note: Brotli does not works in Safari < 11. For more information see https://caniuse.com/#feat=brotli","title":"enable-brotli"},{"location":"user-guide/nginx-configuration/configmap/#brotli-level","text":"Sets the Brotli Compression Level that will be used. default: 4","title":"brotli-level"},{"location":"user-guide/nginx-configuration/configmap/#brotli-types","text":"Sets the MIME Types that will be compressed on-the-fly by brotli. default: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component","title":"brotli-types"},{"location":"user-guide/nginx-configuration/configmap/#use-http2","text":"Enables or disables HTTP/2 support in secure connections.","title":"use-http2"},{"location":"user-guide/nginx-configuration/configmap/#gzip-level","text":"Sets the gzip Compression Level that will be used. default: 5","title":"gzip-level"},{"location":"user-guide/nginx-configuration/configmap/#gzip-min-length","text":"Minimum length of responses to be returned to the client before it is eligible for gzip compression, in bytes. default: 256","title":"gzip-min-length"},{"location":"user-guide/nginx-configuration/configmap/#gzip-types","text":"Sets the MIME types in addition to \"text/html\" to compress. The special value \"*\" matches any MIME type. Responses with the \"text/html\" type are always compressed if use-gzip is enabled. default: application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component .","title":"gzip-types"},{"location":"user-guide/nginx-configuration/configmap/#worker-processes","text":"Sets the number of worker processes . The default of \"auto\" means number of available CPU cores.","title":"worker-processes"},{"location":"user-guide/nginx-configuration/configmap/#worker-cpu-affinity","text":"Binds worker processes to the sets of CPUs. worker_cpu_affinity . By default worker processes are not bound to any specific CPUs. The value can be: \"\": empty string indicate no affinity is applied. cpumask: e.g. 0001 0010 0100 1000 to bind processes to specific cpus. auto: binding worker processes automatically to available CPUs.","title":"worker-cpu-affinity"},{"location":"user-guide/nginx-configuration/configmap/#worker-shutdown-timeout","text":"Sets a timeout for Nginx to wait for worker to gracefully shutdown . default: \"240s\"","title":"worker-shutdown-timeout"},{"location":"user-guide/nginx-configuration/configmap/#load-balance","text":"Sets the algorithm to use for load balancing. The value can either be: round_robin: to use the default round robin loadbalancer ewma: to use the Peak EWMA method for routing ( implementation ) The default is round_robin . To load balance using consistent hashing of IP or other variables, consider the nginx.ingress.kubernetes.io/upstream-hash-by annotation. To load balance using session cookies, consider the nginx.ingress.kubernetes.io/affinity annotation. References: http://nginx.org/en/docs/http/load_balancing.html","title":"load-balance"},{"location":"user-guide/nginx-configuration/configmap/#variables-hash-bucket-size","text":"Sets the bucket size for the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_bucket_size","title":"variables-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#variables-hash-max-size","text":"Sets the maximum size of the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_max_size","title":"variables-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-connections","text":"Activates the cache for connections to upstream servers. The connections parameter sets the maximum number of idle keepalive connections to upstream servers that are preserved in the cache of each worker process. When this number is exceeded, the least recently used connections are closed. default: 32 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive","title":"upstream-keepalive-connections"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-timeout","text":"Sets a timeout during which an idle keepalive connection to an upstream server will stay open. default: 60 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_timeout","title":"upstream-keepalive-timeout"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-requests","text":"Sets the maximum number of requests that can be served through one keepalive connection. After the maximum number of requests is made, the connection is closed. default: 100 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_requests","title":"upstream-keepalive-requests"},{"location":"user-guide/nginx-configuration/configmap/#limit-conn-zone-variable","text":"Sets parameters for a shared memory zone that will keep states for various keys of limit_conn_zone . The default of \"$binary_remote_addr\" variable\u2019s size is always 4 bytes for IPv4 addresses or 16 bytes for IPv6 addresses.","title":"limit-conn-zone-variable"},{"location":"user-guide/nginx-configuration/configmap/#proxy-stream-timeout","text":"Sets the timeout between two successive read or write operations on client or proxied server connections. If no data is transmitted within this time, the connection is closed. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_timeout","title":"proxy-stream-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-stream-responses","text":"Sets the number of datagrams expected from the proxied server in response to the client request if the UDP protocol is used. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_responses","title":"proxy-stream-responses"},{"location":"user-guide/nginx-configuration/configmap/#bind-address","text":"Sets the addresses on which the server will accept requests instead of *. It should be noted that these addresses must exist in the runtime environment or the controller will crash loop.","title":"bind-address"},{"location":"user-guide/nginx-configuration/configmap/#use-forwarded-headers","text":"If true, NGINX passes the incoming X-Forwarded-* headers to upstreams. Use this option when NGINX is behind another L7 proxy / load balancer that is setting these headers. If false, NGINX ignores incoming X-Forwarded-* headers, filling them with the request information it sees. Use this option if NGINX is exposed directly to the internet, or it's behind a L3/packet-based load balancer that doesn't alter the source IP in the packets.","title":"use-forwarded-headers"},{"location":"user-guide/nginx-configuration/configmap/#enable-real-ip","text":"enable-real-ip enables the configuration of http://nginx.org/en/docs/http/ngx_http_realip_module.html . Specific attributes of the module can be configured further by using forwarded-for-header and proxy-real-ip-cidr settings.","title":"enable-real-ip"},{"location":"user-guide/nginx-configuration/configmap/#forwarded-for-header","text":"Sets the header field for identifying the originating IP address of a client. default: X-Forwarded-For","title":"forwarded-for-header"},{"location":"user-guide/nginx-configuration/configmap/#compute-full-forwarded-for","text":"Append the remote address to the X-Forwarded-For header instead of replacing it. When this option is enabled, the upstream application is responsible for extracting the client IP based on its own list of trusted proxies.","title":"compute-full-forwarded-for"},{"location":"user-guide/nginx-configuration/configmap/#proxy-add-original-uri-header","text":"Adds an X-Original-Uri header with the original request URI to the backend request","title":"proxy-add-original-uri-header"},{"location":"user-guide/nginx-configuration/configmap/#generate-request-id","text":"Ensures that X-Request-ID is defaulted to a random value, if no X-Request-ID is present in the request","title":"generate-request-id"},{"location":"user-guide/nginx-configuration/configmap/#enable-opentracing","text":"Enables the nginx Opentracing extension. default: is disabled References: https://github.com/opentracing-contrib/nginx-opentracing","title":"enable-opentracing"},{"location":"user-guide/nginx-configuration/configmap/#opentracing-operation-name","text":"Specifies a custom name for the server span. default: is empty For example, set to \"HTTP $request_method $uri\".","title":"opentracing-operation-name"},{"location":"user-guide/nginx-configuration/configmap/#opentracing-location-operation-name","text":"Specifies a custom name for the location span. default: is empty For example, set to \"HTTP $request_method $uri\".","title":"opentracing-location-operation-name"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-collector-host","text":"Specifies the host to use when uploading traces. It must be a valid URL.","title":"zipkin-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-collector-port","text":"Specifies the port to use when uploading traces. default: 9411","title":"zipkin-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"zipkin-service-name"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-sample-rate","text":"Specifies sample rate for any traces created. default: 1.0","title":"zipkin-sample-rate"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-collector-host","text":"Specifies the host to use when uploading traces. It must be a valid URL.","title":"jaeger-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-collector-port","text":"Specifies the port to use when uploading traces. default: 6831","title":"jaeger-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"jaeger-service-name"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-type","text":"Specifies the sampler to be used when sampling traces. The available samplers are: const, probabilistic, ratelimiting, remote. default: const","title":"jaeger-sampler-type"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-param","text":"Specifies the argument to be passed to the sampler constructor. Must be a number. For const this should be 0 to never sample and 1 to always sample. default: 1","title":"jaeger-sampler-param"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-host","text":"Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. Leave blank to use default value (localhost). default: http://127.0.0.1","title":"jaeger-sampler-host"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-port","text":"Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. default: 5778","title":"jaeger-sampler-port"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-trace-context-header-name","text":"Specifies the header name used for passing trace context. default: uber-trace-id","title":"jaeger-trace-context-header-name"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-debug-header","text":"Specifies the header name used for force sampling. default: jaeger-debug-id","title":"jaeger-debug-header"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-baggage-header","text":"Specifies the header name used to submit baggage if there is no root span. default: jaeger-baggage","title":"jaeger-baggage-header"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-tracer-baggage-header-prefix","text":"Specifies the header prefix used to propagate baggage. default: uberctx-","title":"jaeger-tracer-baggage-header-prefix"},{"location":"user-guide/nginx-configuration/configmap/#datadog-collector-host","text":"Specifies the datadog agent host to use when uploading traces. It must be a valid URL.","title":"datadog-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#datadog-collector-port","text":"Specifies the port to use when uploading traces. default: 8126","title":"datadog-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#datadog-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"datadog-service-name"},{"location":"user-guide/nginx-configuration/configmap/#datadog-operation-name-override","text":"Overrides the operation naem to use for any traces crated. default: nginx.handle","title":"datadog-operation-name-override"},{"location":"user-guide/nginx-configuration/configmap/#datadog-priority-sampling","text":"Specifies to use client-side sampling. If true disables client-side sampling (thus ignoring sample_rate ) and enables distributed priority sampling, where traces are sampled based on a combination of user-assigned priorities and configuration from the agent. default: true","title":"datadog-priority-sampling"},{"location":"user-guide/nginx-configuration/configmap/#datadog-sample-rate","text":"Specifies sample rate for any traces created. This is effective only when datadog-priority-sampling is false default: 1.0","title":"datadog-sample-rate"},{"location":"user-guide/nginx-configuration/configmap/#main-snippet","text":"Adds custom configuration to the main section of the nginx configuration.","title":"main-snippet"},{"location":"user-guide/nginx-configuration/configmap/#http-snippet","text":"Adds custom configuration to the http section of the nginx configuration.","title":"http-snippet"},{"location":"user-guide/nginx-configuration/configmap/#server-snippet","text":"Adds custom configuration to all the servers in the nginx configuration.","title":"server-snippet"},{"location":"user-guide/nginx-configuration/configmap/#location-snippet","text":"Adds custom configuration to all the locations in the nginx configuration. You can not use this to add new locations that proxy to the Kubernetes pods, as the snippet does not have access to the Go template functions. If you want to add custom locations you will have to provide your own nginx.tmpl .","title":"location-snippet"},{"location":"user-guide/nginx-configuration/configmap/#custom-http-errors","text":"Enables which HTTP codes should be passed for processing with the error_page directive Setting at least one code also enables proxy_intercept_errors which are required to process error_page. Example usage: custom-http-errors: 404,415","title":"custom-http-errors"},{"location":"user-guide/nginx-configuration/configmap/#proxy-body-size","text":"Sets the maximum allowed size of the client request body. See NGINX client_max_body_size .","title":"proxy-body-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-connect-timeout","text":"Sets the timeout for establishing a connection with a proxied server . It should be noted that this timeout cannot usually exceed 75 seconds.","title":"proxy-connect-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-read-timeout","text":"Sets the timeout in seconds for reading a response from the proxied server . The timeout is set only between two successive read operations, not for the transmission of the whole response.","title":"proxy-read-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-send-timeout","text":"Sets the timeout in seconds for transmitting a request to the proxied server . The timeout is set only between two successive write operations, not for the transmission of the whole request.","title":"proxy-send-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffers-number","text":"Sets the number of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header.","title":"proxy-buffers-number"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffer-size","text":"Sets the size of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header.","title":"proxy-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-cookie-path","text":"Sets a text that should be changed in the path attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response.","title":"proxy-cookie-path"},{"location":"user-guide/nginx-configuration/configmap/#proxy-cookie-domain","text":"Sets a text that should be changed in the domain attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response.","title":"proxy-cookie-domain"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream","text":"Specifies in which cases a request should be passed to the next server.","title":"proxy-next-upstream"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream-timeout","text":"Limits the time in seconds during which a request can be passed to the next server.","title":"proxy-next-upstream-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream-tries","text":"Limit the number of possible tries a request should be passed to the next server.","title":"proxy-next-upstream-tries"},{"location":"user-guide/nginx-configuration/configmap/#proxy-redirect-from","text":"Sets the original text that should be changed in the \"Location\" and \"Refresh\" header fields of a proxied server response. default: off References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_redirect","title":"proxy-redirect-from"},{"location":"user-guide/nginx-configuration/configmap/#proxy-request-buffering","text":"Enables or disables buffering of a client request body .","title":"proxy-request-buffering"},{"location":"user-guide/nginx-configuration/configmap/#ssl-redirect","text":"Sets the global value of redirects (301) to HTTPS if the server has a TLS certificate (defined in an Ingress rule). default: \"true\"","title":"ssl-redirect"},{"location":"user-guide/nginx-configuration/configmap/#whitelist-source-range","text":"Sets the default whitelisted IPs for each server block. This can be overwritten by an annotation on an Ingress rule. See ngx_http_access_module .","title":"whitelist-source-range"},{"location":"user-guide/nginx-configuration/configmap/#skip-access-log-urls","text":"Sets a list of URLs that should not appear in the NGINX access log. This is useful with urls like /health or health-check that make \"complex\" reading the logs. default: is empty","title":"skip-access-log-urls"},{"location":"user-guide/nginx-configuration/configmap/#limit-rate","text":"Limits the rate of response transmission to a client. The rate is specified in bytes per second. The zero value disables rate limiting. The limit is set per a request, and so if a client simultaneously opens two connections, the overall rate will be twice as much as the specified limit. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate","title":"limit-rate"},{"location":"user-guide/nginx-configuration/configmap/#limit-rate-after","text":"Sets the initial amount after which the further transmission of a response to a client will be rate limited.","title":"limit-rate-after"},{"location":"user-guide/nginx-configuration/configmap/#lua-shared-dicts","text":"Customize default Lua shared dictionaries or define more. You can use the following syntax to do so: lua-shared-dicts: \"<my dict name>: <my dict size>, [<my dict name>: <my dict size>], ...\" For example following will set default certificate_data dictionary to 100M and will introduce a new dictionary called my_custom_plugin : lua-shared-dicts: \"certificate_data: 100, my_custom_plugin: 5\" References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate_after","title":"lua-shared-dicts"},{"location":"user-guide/nginx-configuration/configmap/#http-redirect-code","text":"Sets the HTTP status code to be used in redirects. Supported codes are 301 , 302 , 307 and 308 default: 308 Why the default code is 308? RFC 7238 was created to define the 308 (Permanent Redirect) status code that is similar to 301 (Moved Permanently) but it keeps the payload in the redirect. This is important if we send a redirect in methods like POST.","title":"http-redirect-code"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffering","text":"Enables or disables buffering of responses from the proxied server .","title":"proxy-buffering"},{"location":"user-guide/nginx-configuration/configmap/#limit-req-status-code","text":"Sets the status code to return in response to rejected requests . default: 503","title":"limit-req-status-code"},{"location":"user-guide/nginx-configuration/configmap/#limit-conn-status-code","text":"Sets the status code to return in response to rejected connections . default: 503","title":"limit-conn-status-code"},{"location":"user-guide/nginx-configuration/configmap/#no-tls-redirect-locations","text":"A comma-separated list of locations on which http requests will never get redirected to their https counterpart. default: \"/.well-known/acme-challenge\"","title":"no-tls-redirect-locations"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-url","text":"A url to an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-url . Locations that should not get authenticated can be listed using no-auth-locations See no-auth-locations . In addition, each service can be excluded from authentication via annotation enable-global-auth set to \"false\". default: \"\" References: https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md#external-authentication","title":"global-auth-url"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-method","text":"A HTTP method to use for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-method . default: \"\"","title":"global-auth-method"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-signin","text":"Sets the location of the error page for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-signin . default: \"\"","title":"global-auth-signin"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-response-headers","text":"Sets the headers to pass to backend once authentication request completes. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-response-headers . default: \"\"","title":"global-auth-response-headers"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-request-redirect","text":"Sets the X-Auth-Request-Redirect header value. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\"","title":"global-auth-request-redirect"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-snippet","text":"Sets a custom snippet to use with external authentication. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\"","title":"global-auth-snippet"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-cache-key","text":"Enables caching for global auth requests. Specify a lookup key for auth responses, e.g. $remote_user$http_authorization .","title":"global-auth-cache-key"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-cache-duration","text":"Set a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m .","title":"global-auth-cache-duration"},{"location":"user-guide/nginx-configuration/configmap/#no-auth-locations","text":"A comma-separated list of locations that should not get authenticated. default: \"/.well-known/acme-challenge\"","title":"no-auth-locations"},{"location":"user-guide/nginx-configuration/configmap/#block-cidrs","text":"A comma-separated list of IP addresses (or subnets), request from which have to be blocked globally. References: http://nginx.org/en/docs/http/ngx_http_access_module.html#deny","title":"block-cidrs"},{"location":"user-guide/nginx-configuration/configmap/#block-user-agents","text":"A comma-separated list of User-Agent, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map","title":"block-user-agents"},{"location":"user-guide/nginx-configuration/configmap/#block-referers","text":"A comma-separated list of Referers, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map","title":"block-referers"},{"location":"user-guide/nginx-configuration/configmap/#proxy-ssl-location-only","text":"Set if proxy-ssl parameters should be applied only on locations and not on servers. default: is disabled","title":"proxy-ssl-location-only"},{"location":"user-guide/nginx-configuration/configmap/#default-type","text":"Sets the default MIME type of a response. default: text/html References: http://nginx.org/en/docs/http/ngx_http_core_module.html#default_type","title":"default-type"},{"location":"user-guide/nginx-configuration/custom-template/","text":"Custom NGINX template \u00b6 The NGINX template is located in the file /etc/nginx/template/nginx.tmpl . Using a Volume it is possible to use a custom template. This includes using a Configmap as source of the template volumeMounts : - mountPath : /etc/nginx/template name : nginx-template-volume readOnly : true volumes : - name : nginx-template-volume configMap : name : nginx-template items : - key : nginx.tmpl path : nginx.tmpl Please note the template is tied to the Go code. Do not change names in the variable $cfg . For more information about the template syntax please check the Go template package . In addition to the built-in functions provided by the Go package the following functions are also available: empty: returns true if the specified parameter (string) is empty contains: strings.Contains hasPrefix: strings.HasPrefix hasSuffix: strings.HasSuffix toUpper: strings.ToUpper toLower: strings.ToLower quote: wraps a string in double quotes buildLocation: helps to build the NGINX Location section in each server buildProxyPass: builds the reverse proxy configuration buildRateLimit: helps to build a limit zone inside a location if contains a rate limit annotation TODO: buildAuthLocation: buildAuthResponseHeaders: buildResolvers: buildDenyVariable: buildUpstreamName: buildForwardedFor: buildAuthSignURL: buildNextUpstream: filterRateLimits: formatIP: getenv: getIngressInformation: serverConfig: isLocationAllowed: isValidClientBodyBufferSize:","title":"Custom NGINX template"},{"location":"user-guide/nginx-configuration/custom-template/#custom-nginx-template","text":"The NGINX template is located in the file /etc/nginx/template/nginx.tmpl . Using a Volume it is possible to use a custom template. This includes using a Configmap as source of the template volumeMounts : - mountPath : /etc/nginx/template name : nginx-template-volume readOnly : true volumes : - name : nginx-template-volume configMap : name : nginx-template items : - key : nginx.tmpl path : nginx.tmpl Please note the template is tied to the Go code. Do not change names in the variable $cfg . For more information about the template syntax please check the Go template package . In addition to the built-in functions provided by the Go package the following functions are also available: empty: returns true if the specified parameter (string) is empty contains: strings.Contains hasPrefix: strings.HasPrefix hasSuffix: strings.HasSuffix toUpper: strings.ToUpper toLower: strings.ToLower quote: wraps a string in double quotes buildLocation: helps to build the NGINX Location section in each server buildProxyPass: builds the reverse proxy configuration buildRateLimit: helps to build a limit zone inside a location if contains a rate limit annotation TODO: buildAuthLocation: buildAuthResponseHeaders: buildResolvers: buildDenyVariable: buildUpstreamName: buildForwardedFor: buildAuthSignURL: buildNextUpstream: filterRateLimits: formatIP: getenv: getIngressInformation: serverConfig: isLocationAllowed: isValidClientBodyBufferSize:","title":"Custom NGINX template"},{"location":"user-guide/nginx-configuration/log-format/","text":"Log format \u00b6 The default configuration uses a custom logging format to add additional information about upstreams, response time and status. log_format upstreaminfo '$remote_addr - $remote_user [$time_local] \"$request\" ' '$status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" ' '$request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr ' '$upstream_response_length $upstream_response_time $upstream_status $req_id'; Placeholder Description $proxy_protocol_addr remote address if proxy protocol is enabled $remote_addr the source IP address of the client $remote_user user name supplied with the Basic authentication $time_local local time in the Common Log Format $request full original request line $status response status $body_bytes_sent number of bytes sent to a client, not counting the response header $http_referer value of the Referer header $http_user_agent value of User-Agent header $request_length request length (including request line, header, and request body) $request_time time elapsed since the first bytes were read from the client $proxy_upstream_name name of the upstream. The format is upstream-<namespace>-<service name>-<service port> $proxy_alternative_upstream_name name of the alternative upstream. The format is upstream-<namespace>-<service name>-<service port> $upstream_addr the IP address and port (or the path to the domain socket) of the upstream server. If several servers were contacted during request processing, their addresses are separated by commas. $upstream_response_length the length of the response obtained from the upstream server $upstream_response_time time spent on receiving the response from the upstream server as seconds with millisecond resolution $upstream_status status code of the response obtained from the upstream server $req_id the randomly generated ID of the request Additional available variables: Placeholder Description $namespace namespace of the ingress $ingress_name name of the ingress $service_name name of the service $service_port port of the service Sources: Upstream variables Embedded variables","title":"Log format"},{"location":"user-guide/nginx-configuration/log-format/#log-format","text":"The default configuration uses a custom logging format to add additional information about upstreams, response time and status. log_format upstreaminfo '$remote_addr - $remote_user [$time_local] \"$request\" ' '$status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" ' '$request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr ' '$upstream_response_length $upstream_response_time $upstream_status $req_id'; Placeholder Description $proxy_protocol_addr remote address if proxy protocol is enabled $remote_addr the source IP address of the client $remote_user user name supplied with the Basic authentication $time_local local time in the Common Log Format $request full original request line $status response status $body_bytes_sent number of bytes sent to a client, not counting the response header $http_referer value of the Referer header $http_user_agent value of User-Agent header $request_length request length (including request line, header, and request body) $request_time time elapsed since the first bytes were read from the client $proxy_upstream_name name of the upstream. The format is upstream-<namespace>-<service name>-<service port> $proxy_alternative_upstream_name name of the alternative upstream. The format is upstream-<namespace>-<service name>-<service port> $upstream_addr the IP address and port (or the path to the domain socket) of the upstream server. If several servers were contacted during request processing, their addresses are separated by commas. $upstream_response_length the length of the response obtained from the upstream server $upstream_response_time time spent on receiving the response from the upstream server as seconds with millisecond resolution $upstream_status status code of the response obtained from the upstream server $req_id the randomly generated ID of the request Additional available variables: Placeholder Description $namespace namespace of the ingress $ingress_name name of the ingress $service_name name of the service $service_port port of the service Sources: Upstream variables Embedded variables","title":"Log format"},{"location":"user-guide/third-party-addons/modsecurity/","text":"ModSecurity Web Application Firewall \u00b6 ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis - https://www.modsecurity.org The ModSecurity-nginx connector is the connection point between NGINX and libmodsecurity (ModSecurity v3). The default ModSecurity configuration file is located in /etc/nginx/modsecurity/modsecurity.conf . This is the only file located in this directory and contains the default recommended configuration. Using a volume we can replace this file with the desired configuration. To enable the ModSecurity feature we need to specify enable-modsecurity: \"true\" in the configuration configmap. Note: the default configuration use detection only, because that minimizes the chances of post-installation disruption. Due to the value of the setting SecAuditLogType=Concurrent the ModSecurity log is stored in multiple files inside the directory /var/log/audit . The default Serial value in SecAuditLogType can impact performance. The OWASP ModSecurity Core Rule Set (CRS) is a set of generic attack detection rules for use with ModSecurity or compatible web application firewalls. The CRS aims to protect web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts. The directory /etc/nginx/owasp-modsecurity-crs contains the owasp-modsecurity-crs repository . Using enable-owasp-modsecurity-crs: \"true\" we enable the use of the rules.","title":"ModSecurity Web Application Firewall"},{"location":"user-guide/third-party-addons/modsecurity/#modsecurity-web-application-firewall","text":"ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis - https://www.modsecurity.org The ModSecurity-nginx connector is the connection point between NGINX and libmodsecurity (ModSecurity v3). The default ModSecurity configuration file is located in /etc/nginx/modsecurity/modsecurity.conf . This is the only file located in this directory and contains the default recommended configuration. Using a volume we can replace this file with the desired configuration. To enable the ModSecurity feature we need to specify enable-modsecurity: \"true\" in the configuration configmap. Note: the default configuration use detection only, because that minimizes the chances of post-installation disruption. Due to the value of the setting SecAuditLogType=Concurrent the ModSecurity log is stored in multiple files inside the directory /var/log/audit . The default Serial value in SecAuditLogType can impact performance. The OWASP ModSecurity Core Rule Set (CRS) is a set of generic attack detection rules for use with ModSecurity or compatible web application firewalls. The CRS aims to protect web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts. The directory /etc/nginx/owasp-modsecurity-crs contains the owasp-modsecurity-crs repository . Using enable-owasp-modsecurity-crs: \"true\" we enable the use of the rules.","title":"ModSecurity Web Application Firewall"},{"location":"user-guide/third-party-addons/opentracing/","text":"OpenTracing \u00b6 Enables requests served by NGINX for distributed tracing via The OpenTracing Project. Using the third party module opentracing-contrib/nginx-opentracing the NGINX ingress controller can configure NGINX to enable OpenTracing instrumentation. By default this feature is disabled. Usage \u00b6 To enable the instrumentation we must enable OpenTracing in the configuration ConfigMap: data: enable-opentracing: \"true\" To enable or disable instrumentation for a single Ingress, use the enable-opentracing annotation: kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/enable-opentracing: \"true\" We must also set the host to use when uploading traces: zipkin-collector-host: zipkin.default.svc.cluster.local jaeger-collector-host: jaeger-agent.default.svc.cluster.local datadog-collector-host: datadog-agent.default.svc.cluster.local NOTE: While the option is called jaeger-collector-host , you will need to point this to a jaeger-agent , and not the jaeger-collector component. Next you will need to deploy a distributed tracing system which uses OpenTracing. Zipkin and Jaeger and Datadog have been tested. Other optional configuration options: # specifies the name to use for the server span opentracing-operation-name # specifies specifies the name to use for the location span opentracing-location-operation-name # specifies the port to use when uploading traces, Default: 9411 zipkin-collector-port # specifies the service name to use for any traces created, Default: nginx zipkin-service-name # specifies sample rate for any traces created, Default: 1.0 zipkin-sample-rate # specifies the port to use when uploading traces, Default: 6831 jaeger-collector-port # specifies the service name to use for any traces created, Default: nginx jaeger-service-name # specifies the sampler to be used when sampling traces. # The available samplers are: const, probabilistic, ratelimiting, remote, Default: const jaeger-sampler-type # specifies the argument to be passed to the sampler constructor, Default: 1 jaeger-sampler-param # Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. # Default: http://127.0.0.1 jaeger-sampler-host # Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. Default: 5778 jaeger-sampler-port # Specifies the header name used for passing trace context. Must be a string. Default: uber-trace-id jaeger-trace-context-header-name # Specifies the header name used for force sampling. Must be a string. Default: jaeger-debug-id jaeger-debug-header # Specifies the header name used to submit baggage if there is no root span. Must be a string. Default: jaeger-baggage jaeger-baggage-header # Specifies the header prefix used to propagate baggage. Must be a string. Default: uberctx- jaeger-tracer-baggage-header-prefix # specifies the port to use when uploading traces, Default 8126 datadog-collector-port # specifies the service name to use for any traces created, Default: nginx datadog-service-name # specifies the operation name to use for any traces collected, Default: nginx.handle datadog-operation-name-override # Specifies to use client-side sampling for distributed priority sampling and ignore sample rate, Default: true datadog-priority-sampling # specifies sample rate for any traces created, Default: 1.0 datadog-sample-rate All these options (including host) allow environment variables, such as $HOSTNAME or $HOST_IP . In the case of Jaeger, if you have a Jaeger agent running on each machine in your cluster, you can use something like $HOST_IP (which can be 'mounted' with the status.hostIP fieldpath, as described here ) to make sure traces will be sent to the local agent. Examples \u00b6 The following examples show how to deploy and test different distributed tracing systems. These example can be performed using Minikube. Zipkin \u00b6 In the rnburn/zipkin-date-server GitHub repository is an example of a dockerized date service. To install the example and Zipkin collector run: kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/zipkin.yaml kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/deployment.yaml Also we need to configure the NGINX controller ConfigMap with the required values: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" zipkin-collector-host: zipkin.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - In the Zipkin interface we can see the details: Jaeger \u00b6 Enable Ingress addon in Minikube: $ minikube addons enable ingress Add Minikube IP to /etc/hosts: $ echo \"$(minikube ip) example.com\" | sudo tee -a /etc/hosts Apply a basic Service and Ingress Resource: # Create Echoheaders Deployment $ kubectl run echoheaders --image=k8s.gcr.io/echoserver:1.4 --replicas=1 --port=8080 # Expose as a Cluster-IP $ kubectl expose deployment echoheaders --port=80 --target-port=8080 --name=echoheaders-x # Apply the Ingress Resource $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: echo-ingress spec: rules: - host: example.com http: paths: - backend: serviceName: echoheaders-x servicePort: 80 path: /echo ' | kubectl apply -f - Enable OpenTracing and set the jaeger-collector-host: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" jaeger-collector-host: jaeger-agent.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - Apply the Jaeger All-In-One Template: $ kubectl apply -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml Make a few requests to the Service: $ curl example.com/echo -d \"meow\" CLIENT VALUES: client_address=172.17.0.5 command=POST real path=/echo query=nil request_version=1.1 request_uri=http://example.com:8080/echo SERVER VALUES: server_version=nginx: 1.10.0 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close content-length=4 content-type=application/x-www-form-urlencoded host=example.com user-agent=curl/7.54.0 x-forwarded-for=192.168.99.1 x-forwarded-host=example.com x-forwarded-port=80 x-forwarded-proto=http x-original-uri=/echo x-real-ip=192.168.99.1 x-scheme=http BODY: meow View the Jaeger UI: $ minikube service jaeger-query --url http://192.168.99.100:30183 In the Jaeger interface we can see the details:","title":"OpenTracing"},{"location":"user-guide/third-party-addons/opentracing/#opentracing","text":"Enables requests served by NGINX for distributed tracing via The OpenTracing Project. Using the third party module opentracing-contrib/nginx-opentracing the NGINX ingress controller can configure NGINX to enable OpenTracing instrumentation. By default this feature is disabled.","title":"OpenTracing"},{"location":"user-guide/third-party-addons/opentracing/#usage","text":"To enable the instrumentation we must enable OpenTracing in the configuration ConfigMap: data: enable-opentracing: \"true\" To enable or disable instrumentation for a single Ingress, use the enable-opentracing annotation: kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/enable-opentracing: \"true\" We must also set the host to use when uploading traces: zipkin-collector-host: zipkin.default.svc.cluster.local jaeger-collector-host: jaeger-agent.default.svc.cluster.local datadog-collector-host: datadog-agent.default.svc.cluster.local NOTE: While the option is called jaeger-collector-host , you will need to point this to a jaeger-agent , and not the jaeger-collector component. Next you will need to deploy a distributed tracing system which uses OpenTracing. Zipkin and Jaeger and Datadog have been tested. Other optional configuration options: # specifies the name to use for the server span opentracing-operation-name # specifies specifies the name to use for the location span opentracing-location-operation-name # specifies the port to use when uploading traces, Default: 9411 zipkin-collector-port # specifies the service name to use for any traces created, Default: nginx zipkin-service-name # specifies sample rate for any traces created, Default: 1.0 zipkin-sample-rate # specifies the port to use when uploading traces, Default: 6831 jaeger-collector-port # specifies the service name to use for any traces created, Default: nginx jaeger-service-name # specifies the sampler to be used when sampling traces. # The available samplers are: const, probabilistic, ratelimiting, remote, Default: const jaeger-sampler-type # specifies the argument to be passed to the sampler constructor, Default: 1 jaeger-sampler-param # Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. # Default: http://127.0.0.1 jaeger-sampler-host # Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. Default: 5778 jaeger-sampler-port # Specifies the header name used for passing trace context. Must be a string. Default: uber-trace-id jaeger-trace-context-header-name # Specifies the header name used for force sampling. Must be a string. Default: jaeger-debug-id jaeger-debug-header # Specifies the header name used to submit baggage if there is no root span. Must be a string. Default: jaeger-baggage jaeger-baggage-header # Specifies the header prefix used to propagate baggage. Must be a string. Default: uberctx- jaeger-tracer-baggage-header-prefix # specifies the port to use when uploading traces, Default 8126 datadog-collector-port # specifies the service name to use for any traces created, Default: nginx datadog-service-name # specifies the operation name to use for any traces collected, Default: nginx.handle datadog-operation-name-override # Specifies to use client-side sampling for distributed priority sampling and ignore sample rate, Default: true datadog-priority-sampling # specifies sample rate for any traces created, Default: 1.0 datadog-sample-rate All these options (including host) allow environment variables, such as $HOSTNAME or $HOST_IP . In the case of Jaeger, if you have a Jaeger agent running on each machine in your cluster, you can use something like $HOST_IP (which can be 'mounted' with the status.hostIP fieldpath, as described here ) to make sure traces will be sent to the local agent.","title":"Usage"},{"location":"user-guide/third-party-addons/opentracing/#examples","text":"The following examples show how to deploy and test different distributed tracing systems. These example can be performed using Minikube.","title":"Examples"},{"location":"user-guide/third-party-addons/opentracing/#zipkin","text":"In the rnburn/zipkin-date-server GitHub repository is an example of a dockerized date service. To install the example and Zipkin collector run: kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/zipkin.yaml kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/deployment.yaml Also we need to configure the NGINX controller ConfigMap with the required values: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" zipkin-collector-host: zipkin.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - In the Zipkin interface we can see the details:","title":"Zipkin"},{"location":"user-guide/third-party-addons/opentracing/#jaeger","text":"Enable Ingress addon in Minikube: $ minikube addons enable ingress Add Minikube IP to /etc/hosts: $ echo \"$(minikube ip) example.com\" | sudo tee -a /etc/hosts Apply a basic Service and Ingress Resource: # Create Echoheaders Deployment $ kubectl run echoheaders --image=k8s.gcr.io/echoserver:1.4 --replicas=1 --port=8080 # Expose as a Cluster-IP $ kubectl expose deployment echoheaders --port=80 --target-port=8080 --name=echoheaders-x # Apply the Ingress Resource $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: echo-ingress spec: rules: - host: example.com http: paths: - backend: serviceName: echoheaders-x servicePort: 80 path: /echo ' | kubectl apply -f - Enable OpenTracing and set the jaeger-collector-host: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" jaeger-collector-host: jaeger-agent.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - Apply the Jaeger All-In-One Template: $ kubectl apply -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml Make a few requests to the Service: $ curl example.com/echo -d \"meow\" CLIENT VALUES: client_address=172.17.0.5 command=POST real path=/echo query=nil request_version=1.1 request_uri=http://example.com:8080/echo SERVER VALUES: server_version=nginx: 1.10.0 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close content-length=4 content-type=application/x-www-form-urlencoded host=example.com user-agent=curl/7.54.0 x-forwarded-for=192.168.99.1 x-forwarded-host=example.com x-forwarded-port=80 x-forwarded-proto=http x-original-uri=/echo x-real-ip=192.168.99.1 x-scheme=http BODY: meow View the Jaeger UI: $ minikube service jaeger-query --url http://192.168.99.100:30183 In the Jaeger interface we can see the details:","title":"Jaeger"}]}
\ No newline at end of file
+{"config":{"lang":["en"],"min_search_length":3,"prebuild_index":false,"separator":"[\\s\\-]+"},"docs":[{"location":"","text":"Welcome \u00b6 This is the documentation for the NGINX Ingress Controller. It is built around the Kubernetes Ingress resource , using a ConfigMap to store the NGINX configuration. Learn more about using Ingress on k8s.io . Getting Started \u00b6 See Deployment for a whirlwind tour that will get you started.","title":"Welcome"},{"location":"#welcome","text":"This is the documentation for the NGINX Ingress Controller. It is built around the Kubernetes Ingress resource , using a ConfigMap to store the NGINX configuration. Learn more about using Ingress on k8s.io .","title":"Welcome"},{"location":"#getting-started","text":"See Deployment for a whirlwind tour that will get you started.","title":"Getting Started"},{"location":"development/","text":"Developing for NGINX Ingress Controller \u00b6 This document explains how to get started with developing for NGINX Ingress controller. Prerequisites \u00b6 Install Go 1.14 or later. Note The project uses Go Modules Install Docker Important The majority of make tasks run as docker containers Quick Start \u00b6 Fork the repository Clone the repository to any location in your work station Add a GO111MODULE environment variable with export GO111MODULE=on Run go mod download to install dependencies Local build \u00b6 Start a local Kubernetes cluster using kind , build and deploy the ingress controller make dev-env Testing \u00b6 Run go unit tests make test Run unit-tests for lua code make lua-test Lua tests are located in the directory rootfs/etc/nginx/lua/test Important Test files must follow the naming convention <mytest>_test.lua or it will be ignored Run e2e test suite make kind-e2e-test To limit the scope of the tests to execute, we can use the environment variable FOCUS FOCUS=\"no-auth-locations\" make kind-e2e-test Note The variable FOCUS defines Ginkgo Focused Specs Valid values are defined in the describe definition of the e2e tests like Default Backend The complete list of tests can be found here Custom docker image \u00b6 In some cases, it can be useful to build a docker image and publish such an image to a private or custom registry location. This can be done setting two environment variables, REGISTRY and TAG export TAG=\"dev\" export REGISTRY=\"$USER\" make build image and then publish such version with docker push $REGISTRY/controller:$TAG","title":"Development"},{"location":"development/#developing-for-nginx-ingress-controller","text":"This document explains how to get started with developing for NGINX Ingress controller.","title":"Developing for NGINX Ingress Controller"},{"location":"development/#prerequisites","text":"Install Go 1.14 or later. Note The project uses Go Modules Install Docker Important The majority of make tasks run as docker containers","title":"Prerequisites"},{"location":"development/#quick-start","text":"Fork the repository Clone the repository to any location in your work station Add a GO111MODULE environment variable with export GO111MODULE=on Run go mod download to install dependencies","title":"Quick Start"},{"location":"development/#local-build","text":"Start a local Kubernetes cluster using kind , build and deploy the ingress controller make dev-env","title":"Local build"},{"location":"development/#testing","text":"Run go unit tests make test Run unit-tests for lua code make lua-test Lua tests are located in the directory rootfs/etc/nginx/lua/test Important Test files must follow the naming convention <mytest>_test.lua or it will be ignored Run e2e test suite make kind-e2e-test To limit the scope of the tests to execute, we can use the environment variable FOCUS FOCUS=\"no-auth-locations\" make kind-e2e-test Note The variable FOCUS defines Ginkgo Focused Specs Valid values are defined in the describe definition of the e2e tests like Default Backend The complete list of tests can be found here","title":"Testing"},{"location":"development/#custom-docker-image","text":"In some cases, it can be useful to build a docker image and publish such an image to a private or custom registry location. This can be done setting two environment variables, REGISTRY and TAG export TAG=\"dev\" export REGISTRY=\"$USER\" make build image and then publish such version with docker push $REGISTRY/controller:$TAG","title":"Custom docker image"},{"location":"e2e-tests/","text":"e2e test suite for NGINX Ingress Controller \u00b6 [Default Backend] change default settings \u00b6 should apply the annotation to the default backend [Default Backend] \u00b6 should return 404 sending requests when only a default backend is running enables access logging for default backend disables access logging for default backend [Default Backend] custom service \u00b6 uses custom default backend that returns 200 as status code [Default Backend] SSL \u00b6 should return a self generated SSL certificate [TCP] tcp-services \u00b6 should expose a TCP service should expose an ExternalName TCP service auth-* \u00b6 should return status code 200 when no authentication is configured should return status code 503 when authentication is configured with an invalid secret should return status code 401 when authentication is configured but Authorization header is not configured should return status code 401 when authentication is configured and Authorization header is sent with invalid credentials should return status code 200 when authentication is configured and Authorization header is sent should return status code 200 when authentication is configured with a map and Authorization header is sent should return status code 401 when authentication is configured with invalid content and Authorization header is sent proxy_set_header My-Custom-Header 42; proxy_set_header My-Custom-Header 42; proxy_set_header 'My-Custom-Header' '42'; retains cookie set by external authentication server should return status code 200 when signed in should redirect to signin url when not signed in keeps processing new ingresses even if one of the existing ingresses is misconfigured should return status code 200 when signed in after auth backend is deleted should deny login for different location on same server should deny login for different servers should redirect to signin url when not signed in affinitymode \u00b6 Balanced affinity mode should balance Check persistent affinity mode proxy-* \u00b6 should set proxy_redirect to off should set proxy_redirect to default should set proxy_redirect to hello.com goodbye.com should set proxy client-max-body-size to 8m should not set proxy client-max-body-size to incorrect value should set valid proxy timeouts should not set invalid proxy timeouts should turn on proxy-buffering should turn off proxy-request-buffering should build proxy next upstream should setup proxy cookies should change the default proxy HTTP version affinity session-cookie-name \u00b6 should set sticky cookie SERVERID should change cookie name on ingress definition change should set the path to /something on the generated cookie does not set the path to / on the generated cookie if there's more than one rule referring to the same backend should set cookie with expires should work with use-regex annotation and session-cookie-path should warn user when use-regex is true and session-cookie-path is not set should not set affinity across all server locations when using separate ingresses should set sticky cookie without host mirror-* \u00b6 should set mirror-target to http://localhost/mirror should set mirror-target to https://test.env.com/$request_uri should disable mirror-request-body canary-* \u00b6 should response with a 200 status from the mainline upstream when requests are made to the mainline ingress should return 404 status for requests to the canary if no matching ingress is found should return the correct status codes when endpoints are unavailable should route requests to the correct upstream if mainline ingress is created before the canary ingress should route requests to the correct upstream if mainline ingress is created after the canary ingress should route requests to the correct upstream if the mainline ingress is modified should route requests to the correct upstream if the canary ingress is modified should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should routes to mainline upstream when the given Regex causes error should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should not use canary as a catch-all server should not use canary with domain as a server does not crash when canary ingress has multiple paths to the same non-matching backend limit-rate \u00b6 Check limit-rate annotation force-ssl-redirect \u00b6 should redirect to https http2-push-preload \u00b6 enable the http2-push-preload directive proxy-ssl-* \u00b6 should set valid proxy-ssl-secret should set valid proxy-ssl-secret, proxy-ssl-verify to on, and proxy-ssl-verify-depth to 2 should set valid proxy-ssl-secret, proxy-ssl-ciphers to HIGH:!AES should set valid proxy-ssl-secret, proxy-ssl-protocols proxy-ssl-location-only flag should change the nginx config server part modsecurity owasp \u00b6 should enable modsecurity should enable modsecurity with transaction ID and OWASP rules should disable modsecurity should enable modsecurity with snippet should enable modsecurity without using 'modsecurity on;' should disable modsecurity using 'modsecurity off;' should enable modsecurity with snippet and block requests should enable modsecurity globally and with modsecurity-snippet block requests backend-protocol - GRPC \u00b6 should use grpc_pass in the configuration file should return OK for service with backend protocol GRPC should return OK for service with backend protocol GRPCS cors-* \u00b6 should enable cors should set cors methods to only allow POST, GET should set cors max-age should disable cors allow credentials should allow origin for cors should allow headers for cors influxdb-* \u00b6 should send the request metric to the influxdb server Annotation - limit-connections \u00b6 should limit-connections client-body-buffer-size \u00b6 should set client_body_buffer_size to 1000 should set client_body_buffer_size to 1K should set client_body_buffer_size to 1k should set client_body_buffer_size to 1m should set client_body_buffer_size to 1M should not set client_body_buffer_size to invalid 1b default-backend \u00b6 should use a custom default backend as upstream connection-proxy-header \u00b6 set connection header to keep-alive upstream-vhost \u00b6 set host to upstreamvhost.bar.com custom-http-errors \u00b6 configures Nginx correctly server-snippet \u00b6 rewrite-target use-regex enable-rewrite-log \u00b6 should write rewrite logs should use correct longest path match should use ~* location modifier if regex annotation is present should fail to use longest match for documented warning should allow for custom rewrite parameters app-root \u00b6 should redirect to /foo whitelist-source-range \u00b6 should set valid ip whitelist range enable-access-log enable-rewrite-log \u00b6 set access_log off set rewrite_log on x-forwarded-prefix \u00b6 should set the X-Forwarded-Prefix to the annotation value should not add X-Forwarded-Prefix if the annotation value is empty configuration-snippet \u00b6 in all locations backend-protocol - FastCGI \u00b6 should use fastcgi_pass in the configuration file should add fastcgi_index in the configuration file should add fastcgi_param in the configuration file should return OK for service with backend protocol FastCGI from-to-www-redirect \u00b6 should redirect from www HTTP to HTTP should redirect from www HTTPS to HTTPS permanen-redirect permanen-redirect-code \u00b6 should respond with a standard redirect code should respond with a custom redirect code upstream-hash-by-* \u00b6 should connect to the same pod should connect to the same subset of pods backend-protocol \u00b6 should set backend protocol to https:// and use proxy_pass should set backend protocol to grpc:// and use grpc_pass should set backend protocol to grpcs:// and use grpc_pass should set backend protocol to '' and use fastcgi_pass should set backend protocol to '' and use ajp_pass satisfy \u00b6 should configure satisfy directive correctly should allow multiple auth with satisfy any server-alias \u00b6 should return status code 200 for host 'foo' and 404 for 'bar' should return status code 200 for host 'foo' and 'bar' should return status code 200 for hosts defined in two ingresses, different path with one alias ssl-ciphers \u00b6 should change ssl ciphers auth-tls-* \u00b6 should set valid auth-tls-secret should set valid auth-tls-secret, sslVerify to off, and sslVerifyDepth to 2 should set valid auth-tls-secret, pass certificate to upstream, and error page should validate auth-tls-verify-client [Status] status update \u00b6 should update status field after client-go reconnection Debug CLI \u00b6 should list the backend servers should get information for a specific backend server should produce valid JSON for /dbg general [Memory Leak] Dynamic Certificates \u00b6 should not leak memory from ingress SSL certificates or configuration updates single ingress - multiple hosts \u00b6 should set the correct $service_name NGINX variable [Ingress] [PathType] exact \u00b6 should choose exact location for /exact [Security] request smuggling \u00b6 should not return body content from error_page [SSL] [Flag] default-ssl-certificate \u00b6 uses default ssl certificate for catch-all ingress uses default ssl certificate for host based ingress when configured certificate does not match host access-log \u00b6 use the default configuration use the specified configuration use the specified configuration use the specified configuration use the specified configuration [Lua] lua-shared-dicts \u00b6 configures lua shared dicts server-tokens \u00b6 should not exists Server header in the response should exists Server header in the response when is enabled use-proxy-protocol \u00b6 should respect port passed by the PROXY Protocol should respect proto passed by the PROXY Protocol server port should enable PROXY Protocol for HTTPS [Flag] custom HTTP and HTTPS ports \u00b6 should set X-Forwarded-Port headers accordingly when listening on a non-default HTTP port should set X-Forwarded-Port header to 443 should set the X-Forwarded-Port header to 443 [Security] no-auth-locations \u00b6 should return status code 401 when accessing '/' unauthentication should return status code 200 when accessing '/' authentication should return status code 200 when accessing '/noauth' unauthenticated Dynamic $proxy_host \u00b6 should exist a proxy_host should exist a proxy_host using the upstream-vhost annotation value proxy-connect-timeout \u00b6 should set valid proxy timeouts using configmap values should not set invalid proxy timeouts using configmap values [Security] Pod Security Policies \u00b6 should be running with a Pod Security Policy Geoip2 \u00b6 should only allow requests from specific countries [Security] Pod Security Policies with volumes \u00b6 should be running with a Pod Security Policy enable-multi-accept \u00b6 should be enabled by default should be enabled when set to true should be disabled when set to false log-format-* \u00b6 should disable the log-format-escape-json by default should enable the log-format-escape-json should disable the log-format-escape-json log-format-escape-json enabled log-format-escape-json disabled [Flag] ingress-class \u00b6 should ignore Ingress with class should ignore Ingress with no class should delete Ingress when class is removed check scenarios for IngressClass and ingress.class annotation ssl-ciphers \u00b6 Add ssl ciphers proxy-next-upstream \u00b6 should build proxy next upstream using configmap values [Security] global-auth-url \u00b6 should return status code 401 when request any protected service should return status code 200 when request whitelisted (via no-auth-locations) service and 401 when request protected service should return status code 200 when request whitelisted (via ingress annotation) service and 401 when request protected service should still return status code 200 after auth backend is deleted using cache [Security] block-* \u00b6 should block CIDRs defined in the ConfigMap should block User-Agents defined in the ConfigMap should block Referers defined in the ConfigMap plugins \u00b6 should exist a x-hello-world header Configmap - limit-rate \u00b6 Check limit-rate config use-forwarded-headers \u00b6 should trust X-Forwarded headers when setting is true should not trust X-Forwarded headers when setting is false proxy-send-timeout \u00b6 should set valid proxy send timeouts using configmap values should not set invalid proxy send timeouts using configmap values Add no tls redirect locations \u00b6 Check no tls redirect locations config add-headers \u00b6 Add a custom header Add multiple custom headers hash size \u00b6 should set server_names_hash_bucket_size should set server_names_hash_max_size should set proxy-headers-hash-bucket-size should set proxy-headers-hash-max-size should set variables-hash-bucket-size should set variables-hash-max-size should set vmap-hash-bucket-size keep-alive keep-alive-requests \u00b6 should set keepalive_timeout should set keepalive_requests should set keepalive connection to upstream server should set keep alive connection timeout to upstream server should set the request count to upstream server through one keep alive connection [Flag] disable-catch-all \u00b6 should ignore catch all Ingress should delete Ingress updated to catch-all should allow Ingress with both a default backend and rules main-snippet \u00b6 should add value of main-snippet setting to nginx config [SSL] TLS protocols, ciphers and headers) \u00b6 setting cipher suite enforcing TLS v1.0 setting max-age parameter setting includeSubDomains parameter setting preload parameter overriding what's set from the upstream should not use ports during the HTTP to HTTPS redirection should not use ports or X-Forwarded-Host during the HTTP to HTTPS redirection Configmap change \u00b6 should reload after an update in the configuration proxy-read-timeout \u00b6 should set valid proxy read timeouts using configmap values should not set invalid proxy read timeouts using configmap values [Security] modsecurity-snippet \u00b6 should add value of modsecurity-snippet setting to nginx config OCSP \u00b6 should enable OCSP and contain stapling information in the connection reuse-port \u00b6 reuse port should be enabled by default reuse port should be disabled reuse port should be enabled [Shutdown] Graceful shutdown with pending request \u00b6 should let slow requests finish before shutting down [Shutdown] ingress controller \u00b6 should shutdown in less than 60 secons without pending connections should shutdown after waiting 60 seconds for pending connections to be closed should shutdown after waiting 150 seconds for pending connections to be closed [Service] backend status code 503 \u00b6 should return 503 when backend service does not exist should return 503 when all backend service endpoints are unavailable [Service] Type ExternalName \u00b6 works with external name set to incomplete fdqn should return 200 for service type=ExternalName without a port defined should return 200 for service type=ExternalName with a port defined should return status 502 for service type=ExternalName with an invalid host should return 200 for service type=ExternalName using a port name should update the external name after a service update","title":"e2e test suite for [NGINX Ingress Controller](https://github.com/kubernetes/ingress-nginx/tree/master/)"},{"location":"e2e-tests/#e2e-test-suite-for-nginx-ingress-controller","text":"","title":"e2e test suite for NGINX Ingress Controller"},{"location":"e2e-tests/#default-backend-change-default-settings","text":"should apply the annotation to the default backend","title":"[Default Backend] change default settings"},{"location":"e2e-tests/#default-backend","text":"should return 404 sending requests when only a default backend is running enables access logging for default backend disables access logging for default backend","title":"[Default Backend]"},{"location":"e2e-tests/#default-backend-custom-service","text":"uses custom default backend that returns 200 as status code","title":"[Default Backend] custom service"},{"location":"e2e-tests/#default-backend-ssl","text":"should return a self generated SSL certificate","title":"[Default Backend] SSL"},{"location":"e2e-tests/#tcp-tcp-services","text":"should expose a TCP service should expose an ExternalName TCP service","title":"[TCP] tcp-services"},{"location":"e2e-tests/#auth-","text":"should return status code 200 when no authentication is configured should return status code 503 when authentication is configured with an invalid secret should return status code 401 when authentication is configured but Authorization header is not configured should return status code 401 when authentication is configured and Authorization header is sent with invalid credentials should return status code 200 when authentication is configured and Authorization header is sent should return status code 200 when authentication is configured with a map and Authorization header is sent should return status code 401 when authentication is configured with invalid content and Authorization header is sent proxy_set_header My-Custom-Header 42; proxy_set_header My-Custom-Header 42; proxy_set_header 'My-Custom-Header' '42'; retains cookie set by external authentication server should return status code 200 when signed in should redirect to signin url when not signed in keeps processing new ingresses even if one of the existing ingresses is misconfigured should return status code 200 when signed in after auth backend is deleted should deny login for different location on same server should deny login for different servers should redirect to signin url when not signed in","title":"auth-*"},{"location":"e2e-tests/#affinitymode","text":"Balanced affinity mode should balance Check persistent affinity mode","title":"affinitymode"},{"location":"e2e-tests/#proxy-","text":"should set proxy_redirect to off should set proxy_redirect to default should set proxy_redirect to hello.com goodbye.com should set proxy client-max-body-size to 8m should not set proxy client-max-body-size to incorrect value should set valid proxy timeouts should not set invalid proxy timeouts should turn on proxy-buffering should turn off proxy-request-buffering should build proxy next upstream should setup proxy cookies should change the default proxy HTTP version","title":"proxy-*"},{"location":"e2e-tests/#affinity-session-cookie-name","text":"should set sticky cookie SERVERID should change cookie name on ingress definition change should set the path to /something on the generated cookie does not set the path to / on the generated cookie if there's more than one rule referring to the same backend should set cookie with expires should work with use-regex annotation and session-cookie-path should warn user when use-regex is true and session-cookie-path is not set should not set affinity across all server locations when using separate ingresses should set sticky cookie without host","title":"affinity session-cookie-name"},{"location":"e2e-tests/#mirror-","text":"should set mirror-target to http://localhost/mirror should set mirror-target to https://test.env.com/$request_uri should disable mirror-request-body","title":"mirror-*"},{"location":"e2e-tests/#canary-","text":"should response with a 200 status from the mainline upstream when requests are made to the mainline ingress should return 404 status for requests to the canary if no matching ingress is found should return the correct status codes when endpoints are unavailable should route requests to the correct upstream if mainline ingress is created before the canary ingress should route requests to the correct upstream if mainline ingress is created after the canary ingress should route requests to the correct upstream if the mainline ingress is modified should route requests to the correct upstream if the canary ingress is modified should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should routes to mainline upstream when the given Regex causes error should route requests to the correct upstream should route requests to the correct upstream should route requests to the correct upstream should not use canary as a catch-all server should not use canary with domain as a server does not crash when canary ingress has multiple paths to the same non-matching backend","title":"canary-*"},{"location":"e2e-tests/#limit-rate","text":"Check limit-rate annotation","title":"limit-rate"},{"location":"e2e-tests/#force-ssl-redirect","text":"should redirect to https","title":"force-ssl-redirect"},{"location":"e2e-tests/#http2-push-preload","text":"enable the http2-push-preload directive","title":"http2-push-preload"},{"location":"e2e-tests/#proxy-ssl-","text":"should set valid proxy-ssl-secret should set valid proxy-ssl-secret, proxy-ssl-verify to on, and proxy-ssl-verify-depth to 2 should set valid proxy-ssl-secret, proxy-ssl-ciphers to HIGH:!AES should set valid proxy-ssl-secret, proxy-ssl-protocols proxy-ssl-location-only flag should change the nginx config server part","title":"proxy-ssl-*"},{"location":"e2e-tests/#modsecurity-owasp","text":"should enable modsecurity should enable modsecurity with transaction ID and OWASP rules should disable modsecurity should enable modsecurity with snippet should enable modsecurity without using 'modsecurity on;' should disable modsecurity using 'modsecurity off;' should enable modsecurity with snippet and block requests should enable modsecurity globally and with modsecurity-snippet block requests","title":"modsecurity owasp"},{"location":"e2e-tests/#backend-protocol-grpc","text":"should use grpc_pass in the configuration file should return OK for service with backend protocol GRPC should return OK for service with backend protocol GRPCS","title":"backend-protocol - GRPC"},{"location":"e2e-tests/#cors-","text":"should enable cors should set cors methods to only allow POST, GET should set cors max-age should disable cors allow credentials should allow origin for cors should allow headers for cors","title":"cors-*"},{"location":"e2e-tests/#influxdb-","text":"should send the request metric to the influxdb server","title":"influxdb-*"},{"location":"e2e-tests/#annotation-limit-connections","text":"should limit-connections","title":"Annotation - limit-connections"},{"location":"e2e-tests/#client-body-buffer-size","text":"should set client_body_buffer_size to 1000 should set client_body_buffer_size to 1K should set client_body_buffer_size to 1k should set client_body_buffer_size to 1m should set client_body_buffer_size to 1M should not set client_body_buffer_size to invalid 1b","title":"client-body-buffer-size"},{"location":"e2e-tests/#default-backend_1","text":"should use a custom default backend as upstream","title":"default-backend"},{"location":"e2e-tests/#connection-proxy-header","text":"set connection header to keep-alive","title":"connection-proxy-header"},{"location":"e2e-tests/#upstream-vhost","text":"set host to upstreamvhost.bar.com","title":"upstream-vhost"},{"location":"e2e-tests/#custom-http-errors","text":"configures Nginx correctly","title":"custom-http-errors"},{"location":"e2e-tests/#server-snippet","text":"","title":"server-snippet"},{"location":"e2e-tests/#rewrite-target-use-regex-enable-rewrite-log","text":"should write rewrite logs should use correct longest path match should use ~* location modifier if regex annotation is present should fail to use longest match for documented warning should allow for custom rewrite parameters","title":"rewrite-target use-regex enable-rewrite-log"},{"location":"e2e-tests/#app-root","text":"should redirect to /foo","title":"app-root"},{"location":"e2e-tests/#whitelist-source-range","text":"should set valid ip whitelist range","title":"whitelist-source-range"},{"location":"e2e-tests/#enable-access-log-enable-rewrite-log","text":"set access_log off set rewrite_log on","title":"enable-access-log enable-rewrite-log"},{"location":"e2e-tests/#x-forwarded-prefix","text":"should set the X-Forwarded-Prefix to the annotation value should not add X-Forwarded-Prefix if the annotation value is empty","title":"x-forwarded-prefix"},{"location":"e2e-tests/#configuration-snippet","text":"in all locations","title":"configuration-snippet"},{"location":"e2e-tests/#backend-protocol-fastcgi","text":"should use fastcgi_pass in the configuration file should add fastcgi_index in the configuration file should add fastcgi_param in the configuration file should return OK for service with backend protocol FastCGI","title":"backend-protocol - FastCGI"},{"location":"e2e-tests/#from-to-www-redirect","text":"should redirect from www HTTP to HTTP should redirect from www HTTPS to HTTPS","title":"from-to-www-redirect"},{"location":"e2e-tests/#permanen-redirect-permanen-redirect-code","text":"should respond with a standard redirect code should respond with a custom redirect code","title":"permanen-redirect permanen-redirect-code"},{"location":"e2e-tests/#upstream-hash-by-","text":"should connect to the same pod should connect to the same subset of pods","title":"upstream-hash-by-*"},{"location":"e2e-tests/#backend-protocol","text":"should set backend protocol to https:// and use proxy_pass should set backend protocol to grpc:// and use grpc_pass should set backend protocol to grpcs:// and use grpc_pass should set backend protocol to '' and use fastcgi_pass should set backend protocol to '' and use ajp_pass","title":"backend-protocol"},{"location":"e2e-tests/#satisfy","text":"should configure satisfy directive correctly should allow multiple auth with satisfy any","title":"satisfy"},{"location":"e2e-tests/#server-alias","text":"should return status code 200 for host 'foo' and 404 for 'bar' should return status code 200 for host 'foo' and 'bar' should return status code 200 for hosts defined in two ingresses, different path with one alias","title":"server-alias"},{"location":"e2e-tests/#ssl-ciphers","text":"should change ssl ciphers","title":"ssl-ciphers"},{"location":"e2e-tests/#auth-tls-","text":"should set valid auth-tls-secret should set valid auth-tls-secret, sslVerify to off, and sslVerifyDepth to 2 should set valid auth-tls-secret, pass certificate to upstream, and error page should validate auth-tls-verify-client","title":"auth-tls-*"},{"location":"e2e-tests/#status-status-update","text":"should update status field after client-go reconnection","title":"[Status] status update"},{"location":"e2e-tests/#debug-cli","text":"should list the backend servers should get information for a specific backend server should produce valid JSON for /dbg general","title":"Debug CLI"},{"location":"e2e-tests/#memory-leak-dynamic-certificates","text":"should not leak memory from ingress SSL certificates or configuration updates","title":"[Memory Leak] Dynamic Certificates"},{"location":"e2e-tests/#single-ingress-multiple-hosts","text":"should set the correct $service_name NGINX variable","title":"single ingress - multiple hosts"},{"location":"e2e-tests/#ingress-pathtype-exact","text":"should choose exact location for /exact","title":"[Ingress] [PathType] exact"},{"location":"e2e-tests/#security-request-smuggling","text":"should not return body content from error_page","title":"[Security] request smuggling"},{"location":"e2e-tests/#ssl-flag-default-ssl-certificate","text":"uses default ssl certificate for catch-all ingress uses default ssl certificate for host based ingress when configured certificate does not match host","title":"[SSL] [Flag] default-ssl-certificate"},{"location":"e2e-tests/#access-log","text":"use the default configuration use the specified configuration use the specified configuration use the specified configuration use the specified configuration","title":"access-log"},{"location":"e2e-tests/#lua-lua-shared-dicts","text":"configures lua shared dicts","title":"[Lua] lua-shared-dicts"},{"location":"e2e-tests/#server-tokens","text":"should not exists Server header in the response should exists Server header in the response when is enabled","title":"server-tokens"},{"location":"e2e-tests/#use-proxy-protocol","text":"should respect port passed by the PROXY Protocol should respect proto passed by the PROXY Protocol server port should enable PROXY Protocol for HTTPS","title":"use-proxy-protocol"},{"location":"e2e-tests/#flag-custom-http-and-https-ports","text":"should set X-Forwarded-Port headers accordingly when listening on a non-default HTTP port should set X-Forwarded-Port header to 443 should set the X-Forwarded-Port header to 443","title":"[Flag] custom HTTP and HTTPS ports"},{"location":"e2e-tests/#security-no-auth-locations","text":"should return status code 401 when accessing '/' unauthentication should return status code 200 when accessing '/' authentication should return status code 200 when accessing '/noauth' unauthenticated","title":"[Security] no-auth-locations"},{"location":"e2e-tests/#dynamic-proxy_host","text":"should exist a proxy_host should exist a proxy_host using the upstream-vhost annotation value","title":"Dynamic $proxy_host"},{"location":"e2e-tests/#proxy-connect-timeout","text":"should set valid proxy timeouts using configmap values should not set invalid proxy timeouts using configmap values","title":"proxy-connect-timeout"},{"location":"e2e-tests/#security-pod-security-policies","text":"should be running with a Pod Security Policy","title":"[Security] Pod Security Policies"},{"location":"e2e-tests/#geoip2","text":"should only allow requests from specific countries","title":"Geoip2"},{"location":"e2e-tests/#security-pod-security-policies-with-volumes","text":"should be running with a Pod Security Policy","title":"[Security] Pod Security Policies with volumes"},{"location":"e2e-tests/#enable-multi-accept","text":"should be enabled by default should be enabled when set to true should be disabled when set to false","title":"enable-multi-accept"},{"location":"e2e-tests/#log-format-","text":"should disable the log-format-escape-json by default should enable the log-format-escape-json should disable the log-format-escape-json log-format-escape-json enabled log-format-escape-json disabled","title":"log-format-*"},{"location":"e2e-tests/#flag-ingress-class","text":"should ignore Ingress with class should ignore Ingress with no class should delete Ingress when class is removed check scenarios for IngressClass and ingress.class annotation","title":"[Flag] ingress-class"},{"location":"e2e-tests/#ssl-ciphers_1","text":"Add ssl ciphers","title":"ssl-ciphers"},{"location":"e2e-tests/#proxy-next-upstream","text":"should build proxy next upstream using configmap values","title":"proxy-next-upstream"},{"location":"e2e-tests/#security-global-auth-url","text":"should return status code 401 when request any protected service should return status code 200 when request whitelisted (via no-auth-locations) service and 401 when request protected service should return status code 200 when request whitelisted (via ingress annotation) service and 401 when request protected service should still return status code 200 after auth backend is deleted using cache","title":"[Security] global-auth-url"},{"location":"e2e-tests/#security-block-","text":"should block CIDRs defined in the ConfigMap should block User-Agents defined in the ConfigMap should block Referers defined in the ConfigMap","title":"[Security] block-*"},{"location":"e2e-tests/#plugins","text":"should exist a x-hello-world header","title":"plugins"},{"location":"e2e-tests/#configmap-limit-rate","text":"Check limit-rate config","title":"Configmap - limit-rate"},{"location":"e2e-tests/#use-forwarded-headers","text":"should trust X-Forwarded headers when setting is true should not trust X-Forwarded headers when setting is false","title":"use-forwarded-headers"},{"location":"e2e-tests/#proxy-send-timeout","text":"should set valid proxy send timeouts using configmap values should not set invalid proxy send timeouts using configmap values","title":"proxy-send-timeout"},{"location":"e2e-tests/#add-no-tls-redirect-locations","text":"Check no tls redirect locations config","title":"Add no tls redirect locations"},{"location":"e2e-tests/#add-headers","text":"Add a custom header Add multiple custom headers","title":"add-headers"},{"location":"e2e-tests/#hash-size","text":"should set server_names_hash_bucket_size should set server_names_hash_max_size should set proxy-headers-hash-bucket-size should set proxy-headers-hash-max-size should set variables-hash-bucket-size should set variables-hash-max-size should set vmap-hash-bucket-size","title":"hash size"},{"location":"e2e-tests/#keep-alive-keep-alive-requests","text":"should set keepalive_timeout should set keepalive_requests should set keepalive connection to upstream server should set keep alive connection timeout to upstream server should set the request count to upstream server through one keep alive connection","title":"keep-alive keep-alive-requests"},{"location":"e2e-tests/#flag-disable-catch-all","text":"should ignore catch all Ingress should delete Ingress updated to catch-all should allow Ingress with both a default backend and rules","title":"[Flag] disable-catch-all"},{"location":"e2e-tests/#main-snippet","text":"should add value of main-snippet setting to nginx config","title":"main-snippet"},{"location":"e2e-tests/#ssl-tls-protocols-ciphers-and-headers","text":"setting cipher suite enforcing TLS v1.0 setting max-age parameter setting includeSubDomains parameter setting preload parameter overriding what's set from the upstream should not use ports during the HTTP to HTTPS redirection should not use ports or X-Forwarded-Host during the HTTP to HTTPS redirection","title":"[SSL] TLS protocols, ciphers and headers)"},{"location":"e2e-tests/#configmap-change","text":"should reload after an update in the configuration","title":"Configmap change"},{"location":"e2e-tests/#proxy-read-timeout","text":"should set valid proxy read timeouts using configmap values should not set invalid proxy read timeouts using configmap values","title":"proxy-read-timeout"},{"location":"e2e-tests/#security-modsecurity-snippet","text":"should add value of modsecurity-snippet setting to nginx config","title":"[Security] modsecurity-snippet"},{"location":"e2e-tests/#ocsp","text":"should enable OCSP and contain stapling information in the connection","title":"OCSP"},{"location":"e2e-tests/#reuse-port","text":"reuse port should be enabled by default reuse port should be disabled reuse port should be enabled","title":"reuse-port"},{"location":"e2e-tests/#shutdown-graceful-shutdown-with-pending-request","text":"should let slow requests finish before shutting down","title":"[Shutdown] Graceful shutdown with pending request"},{"location":"e2e-tests/#shutdown-ingress-controller","text":"should shutdown in less than 60 secons without pending connections should shutdown after waiting 60 seconds for pending connections to be closed should shutdown after waiting 150 seconds for pending connections to be closed","title":"[Shutdown] ingress controller"},{"location":"e2e-tests/#service-backend-status-code-503","text":"should return 503 when backend service does not exist should return 503 when all backend service endpoints are unavailable","title":"[Service] backend status code 503"},{"location":"e2e-tests/#service-type-externalname","text":"works with external name set to incomplete fdqn should return 200 for service type=ExternalName without a port defined should return 200 for service type=ExternalName with a port defined should return status 502 for service type=ExternalName with an invalid host should return 200 for service type=ExternalName using a port name should update the external name after a service update","title":"[Service] Type ExternalName"},{"location":"how-it-works/","text":"How it works \u00b6 The objective of this document is to explain how the NGINX Ingress controller works, in particular how the NGINX model is built and why we need one. NGINX configuration \u00b6 The goal of this Ingress controller is the assembly of a configuration file (nginx.conf). The main implication of this requirement is the need to reload NGINX after any change in the configuration file. Though it is important to note that we don't reload Nginx on changes that impact only an upstream configuration (i.e Endpoints change when you deploy your app) . We use lua-nginx-module to achieve this. Check below to learn more about how it's done. NGINX model \u00b6 Usually, a Kubernetes Controller utilizes the synchronization loop pattern to check if the desired state in the controller is updated or a change is required. To this purpose, we need to build a model using different objects from the cluster, in particular (in no special order) Ingresses, Services, Endpoints, Secrets, and Configmaps to generate a point in time configuration file that reflects the state of the cluster. To get this object from the cluster, we use Kubernetes Informers , in particular, FilteredSharedInformer . This informers allows reacting to changes in using callbacks to individual changes when a new object is added, modified or removed. Unfortunately, there is no way to know if a particular change is going to affect the final configuration file. Therefore on every change, we have to rebuild a new model from scratch based on the state of cluster and compare it to the current model. If the new model equals to the current one, then we avoid generating a new NGINX configuration and triggering a reload. Otherwise, we check if the difference is only about Endpoints. If so we then send the new list of Endpoints to a Lua handler running inside Nginx using HTTP POST request and again avoid generating a new NGINX configuration and triggering a reload. If the difference between running and new model is about more than just Endpoints we create a new NGINX configuration based on the new model, replace the current model and trigger a reload. One of the uses of the model is to avoid unnecessary reloads when there's no change in the state and to detect conflicts in definitions. The final representation of the NGINX configuration is generated from a Go template using the new model as input for the variables required by the template. Building the NGINX model \u00b6 Building a model is an expensive operation, for this reason, the use of the synchronization loop is a must. By using a work queue it is possible to not lose changes and remove the use of sync.Mutex to force a single execution of the sync loop and additionally it is possible to create a time window between the start and end of the sync loop that allows us to discard unnecessary updates. It is important to understand that any change in the cluster could generate events that the informer will send to the controller and one of the reasons for the work queue . Operations to build the model: Order Ingress rules by CreationTimestamp field, i.e., old rules first. If the same path for the same host is defined in more than one Ingress, the oldest rule wins. If more than one Ingress contains a TLS section for the same host, the oldest rule wins. If multiple Ingresses define an annotation that affects the configuration of the Server block, the oldest rule wins. Create a list of NGINX Servers (per hostname) Create a list of NGINX Upstreams If multiple Ingresses define different paths for the same host, the ingress controller will merge the definitions. Annotations are applied to all the paths in the Ingress. Multiple Ingresses can define different annotations. These definitions are not shared between Ingresses. When a reload is required \u00b6 The next list describes the scenarios when a reload is required: New Ingress Resource Created. TLS section is added to existing Ingress. Change in Ingress annotations that impacts more than just upstream configuration. For instance load-balance annotation does not require a reload. A path is added/removed from an Ingress. An Ingress, Service, Secret is removed. Some missing referenced object from the Ingress is available, like a Service or Secret. A Secret is updated. Avoiding reloads \u00b6 In some cases, it is possible to avoid reloads, in particular when there is a change in the endpoints, i.e., a pod is started or replaced. It is out of the scope of this Ingress controller to remove reloads completely. This would require an incredible amount of work and at some point makes no sense. This can change only if NGINX changes the way new configurations are read, basically, new changes do not replace worker processes. Avoiding reloads on Endpoints changes \u00b6 On every endpoint change the controller fetches endpoints from all the services it sees and generates corresponding Backend objects. It then sends these objects to a Lua handler running inside Nginx. The Lua code in turn stores those backends in a shared memory zone. Then for every request Lua code running in balancer_by_lua context detects what endpoints it should choose upstream peer from and applies the configured load balancing algorithm to choose the peer. Then Nginx takes care of the rest. This way we avoid reloading Nginx on endpoint changes. Note that this includes annotation changes that affects only upstream configuration in Nginx as well. In a relatively big clusters with frequently deploying apps this feature saves significant number of Nginx reloads which can otherwise affect response latency, load balancing quality (after every reload Nginx resets the state of load balancing) and so on. Avoiding outage from wrong configuration \u00b6 Because the ingress controller works using the synchronization loop pattern , it is applying the configuration for all matching objects. In case some Ingress objects have a broken configuration, for example a syntax error in the nginx.ingress.kubernetes.io/configuration-snippet annotation, the generated configuration becomes invalid, does not reload and hence no more ingresses will be taken into account. To prevent this situation to happen, the nginx ingress controller optionally exposes a validating admission webhook server to ensure the validity of incoming ingress objects. This webhook appends the incoming ingress objects to the list of ingresses, generates the configuration and calls nginx to ensure the configuration has no syntax errors.","title":"How it works"},{"location":"how-it-works/#how-it-works","text":"The objective of this document is to explain how the NGINX Ingress controller works, in particular how the NGINX model is built and why we need one.","title":"How it works"},{"location":"how-it-works/#nginx-configuration","text":"The goal of this Ingress controller is the assembly of a configuration file (nginx.conf). The main implication of this requirement is the need to reload NGINX after any change in the configuration file. Though it is important to note that we don't reload Nginx on changes that impact only an upstream configuration (i.e Endpoints change when you deploy your app) . We use lua-nginx-module to achieve this. Check below to learn more about how it's done.","title":"NGINX configuration"},{"location":"how-it-works/#nginx-model","text":"Usually, a Kubernetes Controller utilizes the synchronization loop pattern to check if the desired state in the controller is updated or a change is required. To this purpose, we need to build a model using different objects from the cluster, in particular (in no special order) Ingresses, Services, Endpoints, Secrets, and Configmaps to generate a point in time configuration file that reflects the state of the cluster. To get this object from the cluster, we use Kubernetes Informers , in particular, FilteredSharedInformer . This informers allows reacting to changes in using callbacks to individual changes when a new object is added, modified or removed. Unfortunately, there is no way to know if a particular change is going to affect the final configuration file. Therefore on every change, we have to rebuild a new model from scratch based on the state of cluster and compare it to the current model. If the new model equals to the current one, then we avoid generating a new NGINX configuration and triggering a reload. Otherwise, we check if the difference is only about Endpoints. If so we then send the new list of Endpoints to a Lua handler running inside Nginx using HTTP POST request and again avoid generating a new NGINX configuration and triggering a reload. If the difference between running and new model is about more than just Endpoints we create a new NGINX configuration based on the new model, replace the current model and trigger a reload. One of the uses of the model is to avoid unnecessary reloads when there's no change in the state and to detect conflicts in definitions. The final representation of the NGINX configuration is generated from a Go template using the new model as input for the variables required by the template.","title":"NGINX model"},{"location":"how-it-works/#building-the-nginx-model","text":"Building a model is an expensive operation, for this reason, the use of the synchronization loop is a must. By using a work queue it is possible to not lose changes and remove the use of sync.Mutex to force a single execution of the sync loop and additionally it is possible to create a time window between the start and end of the sync loop that allows us to discard unnecessary updates. It is important to understand that any change in the cluster could generate events that the informer will send to the controller and one of the reasons for the work queue . Operations to build the model: Order Ingress rules by CreationTimestamp field, i.e., old rules first. If the same path for the same host is defined in more than one Ingress, the oldest rule wins. If more than one Ingress contains a TLS section for the same host, the oldest rule wins. If multiple Ingresses define an annotation that affects the configuration of the Server block, the oldest rule wins. Create a list of NGINX Servers (per hostname) Create a list of NGINX Upstreams If multiple Ingresses define different paths for the same host, the ingress controller will merge the definitions. Annotations are applied to all the paths in the Ingress. Multiple Ingresses can define different annotations. These definitions are not shared between Ingresses.","title":"Building the NGINX model"},{"location":"how-it-works/#when-a-reload-is-required","text":"The next list describes the scenarios when a reload is required: New Ingress Resource Created. TLS section is added to existing Ingress. Change in Ingress annotations that impacts more than just upstream configuration. For instance load-balance annotation does not require a reload. A path is added/removed from an Ingress. An Ingress, Service, Secret is removed. Some missing referenced object from the Ingress is available, like a Service or Secret. A Secret is updated.","title":"When a reload is required"},{"location":"how-it-works/#avoiding-reloads","text":"In some cases, it is possible to avoid reloads, in particular when there is a change in the endpoints, i.e., a pod is started or replaced. It is out of the scope of this Ingress controller to remove reloads completely. This would require an incredible amount of work and at some point makes no sense. This can change only if NGINX changes the way new configurations are read, basically, new changes do not replace worker processes.","title":"Avoiding reloads"},{"location":"how-it-works/#avoiding-reloads-on-endpoints-changes","text":"On every endpoint change the controller fetches endpoints from all the services it sees and generates corresponding Backend objects. It then sends these objects to a Lua handler running inside Nginx. The Lua code in turn stores those backends in a shared memory zone. Then for every request Lua code running in balancer_by_lua context detects what endpoints it should choose upstream peer from and applies the configured load balancing algorithm to choose the peer. Then Nginx takes care of the rest. This way we avoid reloading Nginx on endpoint changes. Note that this includes annotation changes that affects only upstream configuration in Nginx as well. In a relatively big clusters with frequently deploying apps this feature saves significant number of Nginx reloads which can otherwise affect response latency, load balancing quality (after every reload Nginx resets the state of load balancing) and so on.","title":"Avoiding reloads on Endpoints changes"},{"location":"how-it-works/#avoiding-outage-from-wrong-configuration","text":"Because the ingress controller works using the synchronization loop pattern , it is applying the configuration for all matching objects. In case some Ingress objects have a broken configuration, for example a syntax error in the nginx.ingress.kubernetes.io/configuration-snippet annotation, the generated configuration becomes invalid, does not reload and hence no more ingresses will be taken into account. To prevent this situation to happen, the nginx ingress controller optionally exposes a validating admission webhook server to ensure the validity of incoming ingress objects. This webhook appends the incoming ingress objects to the list of ingresses, generates the configuration and calls nginx to ensure the configuration has no syntax errors.","title":"Avoiding outage from wrong configuration"},{"location":"kubectl-plugin/","text":"The ingress-nginx kubectl plugin \u00b6 Installation \u00b6 Install krew , then run kubectl krew install ingress-nginx to install the plugin. Then run kubectl ingress-nginx --help to make sure the plugin is properly installed and to get a list of commands: kubectl ingress-nginx --help A kubectl plugin for inspecting your ingress-nginx deployments Usage: ingress-nginx [command] Available Commands: backends Inspect the dynamic backend information of an ingress-nginx instance certs Output the certificate data stored in an ingress-nginx pod conf Inspect the generated nginx.conf exec Execute a command inside an ingress-nginx pod general Inspect the other dynamic ingress-nginx information help Help about any command info Show information about the ingress-nginx service ingresses Provide a short summary of all of the ingress definitions lint Inspect kubernetes resources for possible issues logs Get the kubernetes logs for an ingress-nginx pod ssh ssh into a running ingress-nginx pod Flags: --as string Username to impersonate for the operation --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups. --cache-dir string Default HTTP cache directory (default \"/Users/alexkursell/.kube/http-cache\") --certificate-authority string Path to a cert file for the certificate authority --client-certificate string Path to a client certificate file for TLS --client-key string Path to a client key file for TLS --cluster string The name of the kubeconfig cluster to use --context string The name of the kubeconfig context to use -h, --help help for ingress-nginx --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure --kubeconfig string Path to the kubeconfig file to use for CLI requests. -n, --namespace string If present, the namespace scope for this CLI request --request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default \"0\") -s, --server string The address and port of the Kubernetes API server --token string Bearer token for authentication to the API server --user string The name of the kubeconfig user to use Use \"ingress-nginx [command] --help\" for more information about a command. Common Flags \u00b6 Every subcommand supports the basic kubectl configuration flags like --namespace , --context , --client-key and so on. Subcommands that act on a particular ingress-nginx pod ( backends , certs , conf , exec , general , logs , ssh ), support the --deployment <deployment> and --pod <pod> flags to select either a pod from a deployment with the given name, or a pod with the given name. The --deployment flag defaults to nginx-ingress-controller . Subcommands that inspect resources ( ingresses , lint ) support the --all-namespaces flag, which causes them to inspect resources in every namespace. Subcommands \u00b6 Note that backends , general , certs , and conf require ingress-nginx version 0.23.0 or higher. backends \u00b6 Run kubectl ingress-nginx backends to get a JSON array of the backends that an ingress-nginx controller currently knows about: $ kubectl ingress-nginx backends -n ingress-nginx [ { \"name\": \"default-apple-service-5678\", \"service\": { \"metadata\": { \"creationTimestamp\": null }, \"spec\": { \"ports\": [ { \"protocol\": \"TCP\", \"port\": 5678, \"targetPort\": 5678 } ], \"selector\": { \"app\": \"apple\" }, \"clusterIP\": \"10.97.230.121\", \"type\": \"ClusterIP\", \"sessionAffinity\": \"None\" }, \"status\": { \"loadBalancer\": {} } }, \"port\": 0, \"sslPassthrough\": false, \"endpoints\": [ { \"address\": \"10.1.3.86\", \"port\": \"5678\" } ], \"sessionAffinityConfig\": { \"name\": \"\", \"cookieSessionAffinity\": { \"name\": \"\" } }, \"upstreamHashByConfig\": { \"upstream-hash-by-subset-size\": 3 }, \"noServer\": false, \"trafficShapingPolicy\": { \"weight\": 0, \"header\": \"\", \"headerValue\": \"\", \"cookie\": \"\" } }, { \"name\": \"default-echo-service-8080\", ... }, { \"name\": \"upstream-default-backend\", ... } ] Add the --list option to show only the backend names. Add the --backend <backend> option to show only the backend with the given name. certs \u00b6 Use kubectl ingress-nginx certs --host <hostname> to dump the SSL cert/key information for a given host. WARNING: This command will dump sensitive private key information. Don't blindly share the output, and certainly don't log it anywhere. $ kubectl ingress-nginx certs -n ingress-nginx --host testaddr.local -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN RSA PRIVATE KEY----- <REDACTED! DO NOT SHARE THIS!> -----END RSA PRIVATE KEY----- conf \u00b6 Use kubectl ingress-nginx conf to dump the generated nginx.conf file. Add the --host <hostname> option to view only the server block for that host: kubectl ingress-nginx conf -n ingress-nginx --host testaddr.local server { server_name testaddr.local ; listen 80; set $proxy_upstream_name \"-\"; set $pass_access_scheme $scheme; set $pass_server_port $server_port; set $best_http_host $http_host; set $pass_port $pass_server_port; location / { set $namespace \"\"; set $ingress_name \"\"; set $service_name \"\"; set $service_port \"0\"; set $location_path \"/\"; ... exec \u00b6 kubectl ingress-nginx exec is exactly the same as kubectl exec , with the same command flags. It will automatically choose an ingress-nginx pod to run the command in. $ kubectl ingress-nginx exec -i -n ingress-nginx -- ls /etc/nginx fastcgi_params geoip lua mime.types modsecurity modules nginx.conf opentracing.json owasp-modsecurity-crs template general \u00b6 kubectl ingress-nginx general dumps miscellaneous controller state as a JSON object. Currently it just shows the number of controller pods known to a particular controller pod. $ kubectl ingress-nginx general -n ingress-nginx { \"controllerPodsCount\": 1 } info \u00b6 Shows the internal and external IP/CNAMES for an ingress-nginx service. $ kubectl ingress-nginx info -n ingress-nginx Service cluster IP address: 10.187.253.31 LoadBalancer IP|CNAME: 35.123.123.123 Use the --service <service> flag if your ingress-nginx LoadBalancer service is not named ingress-nginx . ingresses \u00b6 kubectl ingress-nginx ingresses , alternately kubectl ingress-nginx ing , shows a more detailed view of the ingress definitions in a namespace. Compare: $ kubectl get ingresses --all-namespaces NAMESPACE NAME HOSTS ADDRESS PORTS AGE default example-ingress1 testaddr.local,testaddr2.local localhost 80 5d default test-ingress-2 * localhost 80 5d vs $ kubectl ingress-nginx ingresses --all-namespaces NAMESPACE INGRESS NAME HOST+PATH ADDRESSES TLS SERVICE SERVICE PORT ENDPOINTS default example-ingress1 testaddr.local/etameta localhost NO pear-service 5678 5 default example-ingress1 testaddr2.local/otherpath localhost NO apple-service 5678 1 default example-ingress1 testaddr2.local/otherotherpath localhost NO pear-service 5678 5 default test-ingress-2 * localhost NO echo-service 8080 2 lint \u00b6 kubectl ingress-nginx lint can check a namespace or entire cluster for potential configuration issues. This command is especially useful when upgrading between ingress-nginx versions. $ kubectl ingress-nginx lint --all-namespaces --verbose Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 \u2717 othernamespace/ingress-definition-blah - The rewrite-target annotation value does not reference a capture group Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3174 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --sort-backends Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3655 - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 to show the lints added only for a particular ingress-nginx release, use the --from-version and --to-version flags: $ kubectl ingress-nginx lint --all-namespaces --verbose --from-version 0 .24.0 --to-version 0 .24.0 Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 logs \u00b6 kubectl ingress-nginx logs is almost the same as kubectl logs , with fewer flags. It will automatically choose an ingress-nginx pod to read logs from. $ kubectl ingress-nginx logs -n ingress-nginx ------------------------------------------------------------------------------- NGINX Ingress controller Release: dev Build: git-48dc3a867 Repository: git@github.com:kubernetes/ingress-nginx.git ------------------------------------------------------------------------------- W0405 16:53:46.061589 7 flags.go:214] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false) nginx version: nginx/1.15.9 W0405 16:53:46.070093 7 client_config.go:549] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work. I0405 16:53:46.070499 7 main.go:205] Creating API client for https://10.96.0.1:443 I0405 16:53:46.077784 7 main.go:249] Running in Kubernetes cluster version v1.10 (v1.10.11) - git (clean) commit 637c7e288581ee40ab4ca210618a89a555b6e7e9 - platform linux/amd64 I0405 16:53:46.183359 7 nginx.go:265] Starting NGINX Ingress controller I0405 16:53:46.193913 7 event.go:209] Event(v1.ObjectReference{Kind:\"ConfigMap\", Namespace:\"ingress-nginx\", Name:\"udp-services\", UID:\"82258915-563e-11e9-9c52-025000000001\", APIVersion:\"v1\", ResourceVersion:\"494\", FieldPath:\"\"}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/udp-services ... ssh \u00b6 kubectl ingress-nginx ssh is exactly the same as kubectl ingress-nginx exec -it -- /bin/bash . Use it when you want to quickly be dropped into a shell inside a running ingress-nginx container. $ kubectl ingress-nginx ssh -n ingress-nginx www-data@nginx-ingress-controller-7cbf77c976-wx5pn:/etc/nginx$","title":"kubectl plugin"},{"location":"kubectl-plugin/#the-ingress-nginx-kubectl-plugin","text":"","title":"The ingress-nginx kubectl plugin"},{"location":"kubectl-plugin/#installation","text":"Install krew , then run kubectl krew install ingress-nginx to install the plugin. Then run kubectl ingress-nginx --help to make sure the plugin is properly installed and to get a list of commands: kubectl ingress-nginx --help A kubectl plugin for inspecting your ingress-nginx deployments Usage: ingress-nginx [command] Available Commands: backends Inspect the dynamic backend information of an ingress-nginx instance certs Output the certificate data stored in an ingress-nginx pod conf Inspect the generated nginx.conf exec Execute a command inside an ingress-nginx pod general Inspect the other dynamic ingress-nginx information help Help about any command info Show information about the ingress-nginx service ingresses Provide a short summary of all of the ingress definitions lint Inspect kubernetes resources for possible issues logs Get the kubernetes logs for an ingress-nginx pod ssh ssh into a running ingress-nginx pod Flags: --as string Username to impersonate for the operation --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups. --cache-dir string Default HTTP cache directory (default \"/Users/alexkursell/.kube/http-cache\") --certificate-authority string Path to a cert file for the certificate authority --client-certificate string Path to a client certificate file for TLS --client-key string Path to a client key file for TLS --cluster string The name of the kubeconfig cluster to use --context string The name of the kubeconfig context to use -h, --help help for ingress-nginx --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure --kubeconfig string Path to the kubeconfig file to use for CLI requests. -n, --namespace string If present, the namespace scope for this CLI request --request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default \"0\") -s, --server string The address and port of the Kubernetes API server --token string Bearer token for authentication to the API server --user string The name of the kubeconfig user to use Use \"ingress-nginx [command] --help\" for more information about a command.","title":"Installation"},{"location":"kubectl-plugin/#common-flags","text":"Every subcommand supports the basic kubectl configuration flags like --namespace , --context , --client-key and so on. Subcommands that act on a particular ingress-nginx pod ( backends , certs , conf , exec , general , logs , ssh ), support the --deployment <deployment> and --pod <pod> flags to select either a pod from a deployment with the given name, or a pod with the given name. The --deployment flag defaults to nginx-ingress-controller . Subcommands that inspect resources ( ingresses , lint ) support the --all-namespaces flag, which causes them to inspect resources in every namespace.","title":"Common Flags"},{"location":"kubectl-plugin/#subcommands","text":"Note that backends , general , certs , and conf require ingress-nginx version 0.23.0 or higher.","title":"Subcommands"},{"location":"kubectl-plugin/#backends","text":"Run kubectl ingress-nginx backends to get a JSON array of the backends that an ingress-nginx controller currently knows about: $ kubectl ingress-nginx backends -n ingress-nginx [ { \"name\": \"default-apple-service-5678\", \"service\": { \"metadata\": { \"creationTimestamp\": null }, \"spec\": { \"ports\": [ { \"protocol\": \"TCP\", \"port\": 5678, \"targetPort\": 5678 } ], \"selector\": { \"app\": \"apple\" }, \"clusterIP\": \"10.97.230.121\", \"type\": \"ClusterIP\", \"sessionAffinity\": \"None\" }, \"status\": { \"loadBalancer\": {} } }, \"port\": 0, \"sslPassthrough\": false, \"endpoints\": [ { \"address\": \"10.1.3.86\", \"port\": \"5678\" } ], \"sessionAffinityConfig\": { \"name\": \"\", \"cookieSessionAffinity\": { \"name\": \"\" } }, \"upstreamHashByConfig\": { \"upstream-hash-by-subset-size\": 3 }, \"noServer\": false, \"trafficShapingPolicy\": { \"weight\": 0, \"header\": \"\", \"headerValue\": \"\", \"cookie\": \"\" } }, { \"name\": \"default-echo-service-8080\", ... }, { \"name\": \"upstream-default-backend\", ... } ] Add the --list option to show only the backend names. Add the --backend <backend> option to show only the backend with the given name.","title":"backends"},{"location":"kubectl-plugin/#certs","text":"Use kubectl ingress-nginx certs --host <hostname> to dump the SSL cert/key information for a given host. WARNING: This command will dump sensitive private key information. Don't blindly share the output, and certainly don't log it anywhere. $ kubectl ingress-nginx certs -n ingress-nginx --host testaddr.local -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN RSA PRIVATE KEY----- <REDACTED! DO NOT SHARE THIS!> -----END RSA PRIVATE KEY-----","title":"certs"},{"location":"kubectl-plugin/#conf","text":"Use kubectl ingress-nginx conf to dump the generated nginx.conf file. Add the --host <hostname> option to view only the server block for that host: kubectl ingress-nginx conf -n ingress-nginx --host testaddr.local server { server_name testaddr.local ; listen 80; set $proxy_upstream_name \"-\"; set $pass_access_scheme $scheme; set $pass_server_port $server_port; set $best_http_host $http_host; set $pass_port $pass_server_port; location / { set $namespace \"\"; set $ingress_name \"\"; set $service_name \"\"; set $service_port \"0\"; set $location_path \"/\"; ...","title":"conf"},{"location":"kubectl-plugin/#exec","text":"kubectl ingress-nginx exec is exactly the same as kubectl exec , with the same command flags. It will automatically choose an ingress-nginx pod to run the command in. $ kubectl ingress-nginx exec -i -n ingress-nginx -- ls /etc/nginx fastcgi_params geoip lua mime.types modsecurity modules nginx.conf opentracing.json owasp-modsecurity-crs template","title":"exec"},{"location":"kubectl-plugin/#general","text":"kubectl ingress-nginx general dumps miscellaneous controller state as a JSON object. Currently it just shows the number of controller pods known to a particular controller pod. $ kubectl ingress-nginx general -n ingress-nginx { \"controllerPodsCount\": 1 }","title":"general"},{"location":"kubectl-plugin/#info","text":"Shows the internal and external IP/CNAMES for an ingress-nginx service. $ kubectl ingress-nginx info -n ingress-nginx Service cluster IP address: 10.187.253.31 LoadBalancer IP|CNAME: 35.123.123.123 Use the --service <service> flag if your ingress-nginx LoadBalancer service is not named ingress-nginx .","title":"info"},{"location":"kubectl-plugin/#ingresses","text":"kubectl ingress-nginx ingresses , alternately kubectl ingress-nginx ing , shows a more detailed view of the ingress definitions in a namespace. Compare: $ kubectl get ingresses --all-namespaces NAMESPACE NAME HOSTS ADDRESS PORTS AGE default example-ingress1 testaddr.local,testaddr2.local localhost 80 5d default test-ingress-2 * localhost 80 5d vs $ kubectl ingress-nginx ingresses --all-namespaces NAMESPACE INGRESS NAME HOST+PATH ADDRESSES TLS SERVICE SERVICE PORT ENDPOINTS default example-ingress1 testaddr.local/etameta localhost NO pear-service 5678 5 default example-ingress1 testaddr2.local/otherpath localhost NO apple-service 5678 1 default example-ingress1 testaddr2.local/otherotherpath localhost NO pear-service 5678 5 default test-ingress-2 * localhost NO echo-service 8080 2","title":"ingresses"},{"location":"kubectl-plugin/#lint","text":"kubectl ingress-nginx lint can check a namespace or entire cluster for potential configuration issues. This command is especially useful when upgrading between ingress-nginx versions. $ kubectl ingress-nginx lint --all-namespaces --verbose Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 \u2717 othernamespace/ingress-definition-blah - The rewrite-target annotation value does not reference a capture group Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3174 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --sort-backends Lint added for version 0.22.0 https://github.com/kubernetes/ingress-nginx/issues/3655 - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808 to show the lints added only for a particular ingress-nginx release, use the --from-version and --to-version flags: $ kubectl ingress-nginx lint --all-namespaces --verbose --from-version 0 .24.0 --to-version 0 .24.0 Checking ingresses... \u2717 anamespace/this-nginx - Contains the removed session-cookie-hash annotation. Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3743 Checking deployments... \u2717 namespace2/nginx-ingress-controller - Uses removed config flag --enable-dynamic-certificates Lint added for version 0.24.0 https://github.com/kubernetes/ingress-nginx/issues/3808","title":"lint"},{"location":"kubectl-plugin/#logs","text":"kubectl ingress-nginx logs is almost the same as kubectl logs , with fewer flags. It will automatically choose an ingress-nginx pod to read logs from. $ kubectl ingress-nginx logs -n ingress-nginx ------------------------------------------------------------------------------- NGINX Ingress controller Release: dev Build: git-48dc3a867 Repository: git@github.com:kubernetes/ingress-nginx.git ------------------------------------------------------------------------------- W0405 16:53:46.061589 7 flags.go:214] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false) nginx version: nginx/1.15.9 W0405 16:53:46.070093 7 client_config.go:549] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work. I0405 16:53:46.070499 7 main.go:205] Creating API client for https://10.96.0.1:443 I0405 16:53:46.077784 7 main.go:249] Running in Kubernetes cluster version v1.10 (v1.10.11) - git (clean) commit 637c7e288581ee40ab4ca210618a89a555b6e7e9 - platform linux/amd64 I0405 16:53:46.183359 7 nginx.go:265] Starting NGINX Ingress controller I0405 16:53:46.193913 7 event.go:209] Event(v1.ObjectReference{Kind:\"ConfigMap\", Namespace:\"ingress-nginx\", Name:\"udp-services\", UID:\"82258915-563e-11e9-9c52-025000000001\", APIVersion:\"v1\", ResourceVersion:\"494\", FieldPath:\"\"}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/udp-services ...","title":"logs"},{"location":"kubectl-plugin/#ssh","text":"kubectl ingress-nginx ssh is exactly the same as kubectl ingress-nginx exec -it -- /bin/bash . Use it when you want to quickly be dropped into a shell inside a running ingress-nginx container. $ kubectl ingress-nginx ssh -n ingress-nginx www-data@nginx-ingress-controller-7cbf77c976-wx5pn:/etc/nginx$","title":"ssh"},{"location":"troubleshooting/","text":"Troubleshooting \u00b6 Ingress-Controller Logs and Events \u00b6 There are many ways to troubleshoot the ingress-controller. The following are basic troubleshooting methods to obtain more information. Check the Ingress Resource Events $ kubectl get ing -n <namespace-of-ingress-resource> NAME HOSTS ADDRESS PORTS AGE cafe-ingress cafe.com 10.0.2.15 80 25s $ kubectl describe ing <ingress-resource-name> -n <namespace-of-ingress-resource> Name: cafe-ingress Namespace: default Address: 10.0.2.15 Default backend: default-http-backend:80 (172.17.0.5:8080) Rules: Host Path Backends ---- ---- -------- cafe.com /tea tea-svc:80 (<none>) /coffee coffee-svc:80 (<none>) Annotations: kubectl.kubernetes.io/last-applied-configuration: {\"apiVersion\":\"networking.k8s.io/v1beta1\",\"kind\":\"Ingress\",\"metadata\":{\"annotations\":{},\"name\":\"cafe-ingress\",\"namespace\":\"default\",\"selfLink\":\"/apis/networking/v1beta1/namespaces/default/ingresses/cafe-ingress\"},\"spec\":{\"rules\":[{\"host\":\"cafe.com\",\"http\":{\"paths\":[{\"backend\":{\"serviceName\":\"tea-svc\",\"servicePort\":80},\"path\":\"/tea\"},{\"backend\":{\"serviceName\":\"coffee-svc\",\"servicePort\":80},\"path\":\"/coffee\"}]}}]},\"status\":{\"loadBalancer\":{\"ingress\":[{\"ip\":\"169.48.142.110\"}]}}} Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal CREATE 1m nginx-ingress-controller Ingress default/cafe-ingress Normal UPDATE 58s nginx-ingress-controller Ingress default/cafe-ingress Check the Ingress Controller Logs $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl logs -n <namespace> nginx-ingress-controller-67956bf89d-fv58j ------------------------------------------------------------------------------- NGINX Ingress controller Release: 0.14.0 Build: git-734361d Repository: https://github.com/kubernetes/ingress-nginx ------------------------------------------------------------------------------- .... Check the Nginx Configuration $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl exec -it -n <namespace-of-ingress-controller> nginx-ingress-controller-67956bf89d-fv58j -- cat /etc/nginx/nginx.conf daemon off; worker_processes 2; pid /run/nginx.pid; worker_rlimit_nofile 523264; worker_shutdown_timeout 240s; events { multi_accept on; worker_connections 16384; use epoll; } http { .... Check if used Services Exist $ kubectl get svc --all-namespaces NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default coffee-svc ClusterIP 10.106.154.35 <none> 80/TCP 18m default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 30m default tea-svc ClusterIP 10.104.172.12 <none> 80/TCP 18m kube-system default-http-backend NodePort 10.108.189.236 <none> 80:30001/TCP 30m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 30m kube-system kubernetes-dashboard NodePort 10.103.128.17 <none> 80:30000/TCP 30m Debug Logging \u00b6 Using the flag --v=XX it is possible to increase the level of logging. This is performed by editing the deployment. $ kubectl get deploy -n <namespace-of-ingress-controller> NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE default-http-backend 1 1 1 1 35m nginx-ingress-controller 1 1 1 1 35m $ kubectl edit deploy -n <namespace-of-ingress-controller> nginx-ingress-controller # Add --v = X to \"- args\" , where X is an integer --v=2 shows details using diff about the changes in the configuration in nginx --v=3 shows details about the service, Ingress rule, endpoint changes and it dumps the nginx configuration in JSON format --v=5 configures NGINX in debug mode Authentication to the Kubernetes API Server \u00b6 A number of components are involved in the authentication process and the first step is to narrow down the source of the problem, namely whether it is a problem with service authentication or with the kubeconfig file. Both authentications must work: +-------------+ service +------------+ | | authentication | | + apiserver +<-------------------+ ingress | | | | controller | +-------------+ +------------+ Service authentication The Ingress controller needs information from apiserver. Therefore, authentication is required, which can be achieved in two different ways: Service Account: This is recommended, because nothing has to be configured. The Ingress controller will use information provided by the system to communicate with the API server. See 'Service Account' section for details. Kubeconfig file: In some Kubernetes environments service accounts are not available. In this case a manual configuration is required. The Ingress controller binary can be started with the --kubeconfig flag. The value of the flag is a path to a file specifying how to connect to the API server. Using the --kubeconfig does not requires the flag --apiserver-host . The format of the file is identical to ~/.kube/config which is used by kubectl to connect to the API server. See 'kubeconfig' section for details. Using the flag --apiserver-host : Using this flag --apiserver-host=http://localhost:8080 it is possible to specify an unsecured API server or reach a remote kubernetes cluster using kubectl proxy . Please do not use this approach in production. In the diagram below you can see the full authentication flow with all options, starting with the browser on the lower left hand side. Kubernetes Workstation +---------------------------------------------------+ +------------------+ | | | | | +-----------+ apiserver +------------+ | | +------------+ | | | | proxy | | | | | | | | | apiserver | | ingress | | | | ingress | | | | | | controller | | | | controller | | | | | | | | | | | | | | | | | | | | | | | | | service account/ | | | | | | | | | | kubeconfig | | | | | | | | | +<-------------------+ | | | | | | | | | | | | | | | | | +------+----+ kubeconfig +------+-----+ | | +------+-----+ | | |<--------------------------------------------------------| | | | | | +---------------------------------------------------+ +------------------+ Service Account \u00b6 If using a service account to connect to the API server, the ingress-controller expects the file /var/run/secrets/kubernetes.io/serviceaccount/token to be present. It provides a secret token that is required to authenticate with the API server. Verify with the following commands: # start a container that contains curl $ kubectl run test --image = tutum/curl -- sleep 10000 # check that container is running $ kubectl get pods NAME READY STATUS RESTARTS AGE test-701078429-s5kca 1/1 Running 0 16s # check if secret exists $ kubectl exec test-701078429-s5kca -- ls /var/run/secrets/kubernetes.io/serviceaccount/ ca.crt namespace token # get service IP of master $ kubectl get services NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.0.0.1 <none> 443/TCP 1d # check base connectivity from cluster inside $ kubectl exec test-701078429-s5kca -- curl -k https://10.0.0.1 Unauthorized # connect using tokens $ TOKEN_VALUE = $( kubectl exec test-701078429-s5kca -- cat /var/run/secrets/kubernetes.io/serviceaccount/token ) $ echo $TOKEN_VALUE eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3Mi....9A $ kubectl exec test-701078429-s5kca -- curl --cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt -H \"Authorization: Bearer $TOKEN_VALUE \" https://10.0.0.1 { \"paths\": [ \"/api\", \"/api/v1\", \"/apis\", \"/apis/apps\", \"/apis/apps/v1alpha1\", \"/apis/authentication.k8s.io\", \"/apis/authentication.k8s.io/v1beta1\", \"/apis/authorization.k8s.io\", \"/apis/authorization.k8s.io/v1beta1\", \"/apis/autoscaling\", \"/apis/autoscaling/v1\", \"/apis/batch\", \"/apis/batch/v1\", \"/apis/batch/v2alpha1\", \"/apis/certificates.k8s.io\", \"/apis/certificates.k8s.io/v1alpha1\", \"/apis/networking\", \"/apis/networking/v1beta1\", \"/apis/policy\", \"/apis/policy/v1alpha1\", \"/apis/rbac.authorization.k8s.io\", \"/apis/rbac.authorization.k8s.io/v1alpha1\", \"/apis/storage.k8s.io\", \"/apis/storage.k8s.io/v1beta1\", \"/healthz\", \"/healthz/ping\", \"/logs\", \"/metrics\", \"/swaggerapi/\", \"/ui/\", \"/version\" ] } If it is not working, there are two possible reasons: The contents of the tokens are invalid. Find the secret name with kubectl get secrets | grep service-account and delete it with kubectl delete secret <name> . It will automatically be recreated. You have a non-standard Kubernetes installation and the file containing the token may not be present. The API server will mount a volume containing this file, but only if the API server is configured to use the ServiceAccount admission controller. If you experience this error, verify that your API server is using the ServiceAccount admission controller. If you are configuring the API server by hand, you can set this with the --admission-control parameter. Note that you should use other admission controllers as well. Before configuring this option, you should read about admission controllers. More information: User Guide: Service Accounts Cluster Administrator Guide: Managing Service Accounts Kube-Config \u00b6 If you want to use a kubeconfig file for authentication, follow the deploy procedure and add the flag --kubeconfig=/etc/kubernetes/kubeconfig.yaml to the args section of the deployment. Using GDB with Nginx \u00b6 Gdb can be used to with nginx to perform a configuration dump. This allows us to see which configuration is being used, as well as older configurations. Note: The below is based on the nginx documentation . SSH into the worker $ ssh user@workerIP Obtain the Docker Container Running nginx $ docker ps | grep nginx-ingress-controller CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d9e1d243156a quay.io/kubernetes-ingress-controller/nginx-ingress-controller \"/usr/bin/dumb-init \u2026\" 19 minutes ago Up 19 minutes k8s_nginx-ingress-controller_nginx-ingress-controller-67956bf89d-mqxzt_kube-system_079f31ec-aa37-11e8-ad39-080027a227db_0 Exec into the container $ docker exec -it --user = 0 --privileged d9e1d243156a bash Make sure nginx is running in --with-debug $ nginx -V 2 > & 1 | grep -- '--with-debug' Get list of processes running on container $ ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 20:23 ? 00:00:00 /usr/bin/dumb-init /nginx-ingres root 5 1 0 20:23 ? 00:00:05 /nginx-ingress-controller --defa root 21 5 0 20:23 ? 00:00:00 nginx: master process /usr/sbin/ nobody 106 21 0 20:23 ? 00:00:00 nginx: worker process nobody 107 21 0 20:23 ? 00:00:00 nginx: worker process root 172 0 0 20:43 pts/0 00:00:00 bash Attach gdb to the nginx master process $ gdb -p 21 .... Attaching to process 21 Reading symbols from /usr/sbin/nginx...done. .... (gdb) Copy and paste the following: set $cd = ngx_cycle->config_dump set $nelts = $cd.nelts set $elts = (ngx_conf_dump_t*)($cd.elts) while ($nelts-- > 0) set $name = $elts[$nelts]->name.data printf \"Dumping %s to nginx_conf.txt\\n\", $name append memory nginx_conf.txt \\ $ elts [ $nelts ] ->buffer.start $elts [ $nelts ] ->buffer.end end Quit GDB by pressing CTRL+D Open nginx_conf.txt cat nginx_conf.txt","title":"Troubleshooting"},{"location":"troubleshooting/#troubleshooting","text":"","title":"Troubleshooting"},{"location":"troubleshooting/#ingress-controller-logs-and-events","text":"There are many ways to troubleshoot the ingress-controller. The following are basic troubleshooting methods to obtain more information. Check the Ingress Resource Events $ kubectl get ing -n <namespace-of-ingress-resource> NAME HOSTS ADDRESS PORTS AGE cafe-ingress cafe.com 10.0.2.15 80 25s $ kubectl describe ing <ingress-resource-name> -n <namespace-of-ingress-resource> Name: cafe-ingress Namespace: default Address: 10.0.2.15 Default backend: default-http-backend:80 (172.17.0.5:8080) Rules: Host Path Backends ---- ---- -------- cafe.com /tea tea-svc:80 (<none>) /coffee coffee-svc:80 (<none>) Annotations: kubectl.kubernetes.io/last-applied-configuration: {\"apiVersion\":\"networking.k8s.io/v1beta1\",\"kind\":\"Ingress\",\"metadata\":{\"annotations\":{},\"name\":\"cafe-ingress\",\"namespace\":\"default\",\"selfLink\":\"/apis/networking/v1beta1/namespaces/default/ingresses/cafe-ingress\"},\"spec\":{\"rules\":[{\"host\":\"cafe.com\",\"http\":{\"paths\":[{\"backend\":{\"serviceName\":\"tea-svc\",\"servicePort\":80},\"path\":\"/tea\"},{\"backend\":{\"serviceName\":\"coffee-svc\",\"servicePort\":80},\"path\":\"/coffee\"}]}}]},\"status\":{\"loadBalancer\":{\"ingress\":[{\"ip\":\"169.48.142.110\"}]}}} Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal CREATE 1m nginx-ingress-controller Ingress default/cafe-ingress Normal UPDATE 58s nginx-ingress-controller Ingress default/cafe-ingress Check the Ingress Controller Logs $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl logs -n <namespace> nginx-ingress-controller-67956bf89d-fv58j ------------------------------------------------------------------------------- NGINX Ingress controller Release: 0.14.0 Build: git-734361d Repository: https://github.com/kubernetes/ingress-nginx ------------------------------------------------------------------------------- .... Check the Nginx Configuration $ kubectl get pods -n <namespace-of-ingress-controller> NAME READY STATUS RESTARTS AGE nginx-ingress-controller-67956bf89d-fv58j 1/1 Running 0 1m $ kubectl exec -it -n <namespace-of-ingress-controller> nginx-ingress-controller-67956bf89d-fv58j -- cat /etc/nginx/nginx.conf daemon off; worker_processes 2; pid /run/nginx.pid; worker_rlimit_nofile 523264; worker_shutdown_timeout 240s; events { multi_accept on; worker_connections 16384; use epoll; } http { .... Check if used Services Exist $ kubectl get svc --all-namespaces NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default coffee-svc ClusterIP 10.106.154.35 <none> 80/TCP 18m default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 30m default tea-svc ClusterIP 10.104.172.12 <none> 80/TCP 18m kube-system default-http-backend NodePort 10.108.189.236 <none> 80:30001/TCP 30m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 30m kube-system kubernetes-dashboard NodePort 10.103.128.17 <none> 80:30000/TCP 30m","title":"Ingress-Controller Logs and Events"},{"location":"troubleshooting/#debug-logging","text":"Using the flag --v=XX it is possible to increase the level of logging. This is performed by editing the deployment. $ kubectl get deploy -n <namespace-of-ingress-controller> NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE default-http-backend 1 1 1 1 35m nginx-ingress-controller 1 1 1 1 35m $ kubectl edit deploy -n <namespace-of-ingress-controller> nginx-ingress-controller # Add --v = X to \"- args\" , where X is an integer --v=2 shows details using diff about the changes in the configuration in nginx --v=3 shows details about the service, Ingress rule, endpoint changes and it dumps the nginx configuration in JSON format --v=5 configures NGINX in debug mode","title":"Debug Logging"},{"location":"troubleshooting/#authentication-to-the-kubernetes-api-server","text":"A number of components are involved in the authentication process and the first step is to narrow down the source of the problem, namely whether it is a problem with service authentication or with the kubeconfig file. Both authentications must work: +-------------+ service +------------+ | | authentication | | + apiserver +<-------------------+ ingress | | | | controller | +-------------+ +------------+ Service authentication The Ingress controller needs information from apiserver. Therefore, authentication is required, which can be achieved in two different ways: Service Account: This is recommended, because nothing has to be configured. The Ingress controller will use information provided by the system to communicate with the API server. See 'Service Account' section for details. Kubeconfig file: In some Kubernetes environments service accounts are not available. In this case a manual configuration is required. The Ingress controller binary can be started with the --kubeconfig flag. The value of the flag is a path to a file specifying how to connect to the API server. Using the --kubeconfig does not requires the flag --apiserver-host . The format of the file is identical to ~/.kube/config which is used by kubectl to connect to the API server. See 'kubeconfig' section for details. Using the flag --apiserver-host : Using this flag --apiserver-host=http://localhost:8080 it is possible to specify an unsecured API server or reach a remote kubernetes cluster using kubectl proxy . Please do not use this approach in production. In the diagram below you can see the full authentication flow with all options, starting with the browser on the lower left hand side. Kubernetes Workstation +---------------------------------------------------+ +------------------+ | | | | | +-----------+ apiserver +------------+ | | +------------+ | | | | proxy | | | | | | | | | apiserver | | ingress | | | | ingress | | | | | | controller | | | | controller | | | | | | | | | | | | | | | | | | | | | | | | | service account/ | | | | | | | | | | kubeconfig | | | | | | | | | +<-------------------+ | | | | | | | | | | | | | | | | | +------+----+ kubeconfig +------+-----+ | | +------+-----+ | | |<--------------------------------------------------------| | | | | | +---------------------------------------------------+ +------------------+","title":"Authentication to the Kubernetes API Server"},{"location":"troubleshooting/#service-account","text":"If using a service account to connect to the API server, the ingress-controller expects the file /var/run/secrets/kubernetes.io/serviceaccount/token to be present. It provides a secret token that is required to authenticate with the API server. Verify with the following commands: # start a container that contains curl $ kubectl run test --image = tutum/curl -- sleep 10000 # check that container is running $ kubectl get pods NAME READY STATUS RESTARTS AGE test-701078429-s5kca 1/1 Running 0 16s # check if secret exists $ kubectl exec test-701078429-s5kca -- ls /var/run/secrets/kubernetes.io/serviceaccount/ ca.crt namespace token # get service IP of master $ kubectl get services NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.0.0.1 <none> 443/TCP 1d # check base connectivity from cluster inside $ kubectl exec test-701078429-s5kca -- curl -k https://10.0.0.1 Unauthorized # connect using tokens $ TOKEN_VALUE = $( kubectl exec test-701078429-s5kca -- cat /var/run/secrets/kubernetes.io/serviceaccount/token ) $ echo $TOKEN_VALUE eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3Mi....9A $ kubectl exec test-701078429-s5kca -- curl --cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt -H \"Authorization: Bearer $TOKEN_VALUE \" https://10.0.0.1 { \"paths\": [ \"/api\", \"/api/v1\", \"/apis\", \"/apis/apps\", \"/apis/apps/v1alpha1\", \"/apis/authentication.k8s.io\", \"/apis/authentication.k8s.io/v1beta1\", \"/apis/authorization.k8s.io\", \"/apis/authorization.k8s.io/v1beta1\", \"/apis/autoscaling\", \"/apis/autoscaling/v1\", \"/apis/batch\", \"/apis/batch/v1\", \"/apis/batch/v2alpha1\", \"/apis/certificates.k8s.io\", \"/apis/certificates.k8s.io/v1alpha1\", \"/apis/networking\", \"/apis/networking/v1beta1\", \"/apis/policy\", \"/apis/policy/v1alpha1\", \"/apis/rbac.authorization.k8s.io\", \"/apis/rbac.authorization.k8s.io/v1alpha1\", \"/apis/storage.k8s.io\", \"/apis/storage.k8s.io/v1beta1\", \"/healthz\", \"/healthz/ping\", \"/logs\", \"/metrics\", \"/swaggerapi/\", \"/ui/\", \"/version\" ] } If it is not working, there are two possible reasons: The contents of the tokens are invalid. Find the secret name with kubectl get secrets | grep service-account and delete it with kubectl delete secret <name> . It will automatically be recreated. You have a non-standard Kubernetes installation and the file containing the token may not be present. The API server will mount a volume containing this file, but only if the API server is configured to use the ServiceAccount admission controller. If you experience this error, verify that your API server is using the ServiceAccount admission controller. If you are configuring the API server by hand, you can set this with the --admission-control parameter. Note that you should use other admission controllers as well. Before configuring this option, you should read about admission controllers. More information: User Guide: Service Accounts Cluster Administrator Guide: Managing Service Accounts","title":"Service Account"},{"location":"troubleshooting/#kube-config","text":"If you want to use a kubeconfig file for authentication, follow the deploy procedure and add the flag --kubeconfig=/etc/kubernetes/kubeconfig.yaml to the args section of the deployment.","title":"Kube-Config"},{"location":"troubleshooting/#using-gdb-with-nginx","text":"Gdb can be used to with nginx to perform a configuration dump. This allows us to see which configuration is being used, as well as older configurations. Note: The below is based on the nginx documentation . SSH into the worker $ ssh user@workerIP Obtain the Docker Container Running nginx $ docker ps | grep nginx-ingress-controller CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d9e1d243156a quay.io/kubernetes-ingress-controller/nginx-ingress-controller \"/usr/bin/dumb-init \u2026\" 19 minutes ago Up 19 minutes k8s_nginx-ingress-controller_nginx-ingress-controller-67956bf89d-mqxzt_kube-system_079f31ec-aa37-11e8-ad39-080027a227db_0 Exec into the container $ docker exec -it --user = 0 --privileged d9e1d243156a bash Make sure nginx is running in --with-debug $ nginx -V 2 > & 1 | grep -- '--with-debug' Get list of processes running on container $ ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 20:23 ? 00:00:00 /usr/bin/dumb-init /nginx-ingres root 5 1 0 20:23 ? 00:00:05 /nginx-ingress-controller --defa root 21 5 0 20:23 ? 00:00:00 nginx: master process /usr/sbin/ nobody 106 21 0 20:23 ? 00:00:00 nginx: worker process nobody 107 21 0 20:23 ? 00:00:00 nginx: worker process root 172 0 0 20:43 pts/0 00:00:00 bash Attach gdb to the nginx master process $ gdb -p 21 .... Attaching to process 21 Reading symbols from /usr/sbin/nginx...done. .... (gdb) Copy and paste the following: set $cd = ngx_cycle->config_dump set $nelts = $cd.nelts set $elts = (ngx_conf_dump_t*)($cd.elts) while ($nelts-- > 0) set $name = $elts[$nelts]->name.data printf \"Dumping %s to nginx_conf.txt\\n\", $name append memory nginx_conf.txt \\ $ elts [ $nelts ] ->buffer.start $elts [ $nelts ] ->buffer.end end Quit GDB by pressing CTRL+D Open nginx_conf.txt cat nginx_conf.txt","title":"Using GDB with Nginx"},{"location":"deploy/","text":"Installation Guide \u00b6 Attention The default configuration watches Ingress object from all the namespaces . To change this behavior use the flag --watch-namespace to limit the scope to a particular namespace. Warning If multiple Ingresses define paths for the same host, the ingress controller merges the definitions . Danger The admission webhook requires connectivity between Kubernetes API server and the ingress controller. In case Network policies or additional firewalls, please allow access to port 8443 . Attention The first time the ingress controller starts, two Jobs create the SSL Certificate used by the admission webhook. For this reason, there is an initial delay of up to two minutes until it is possible to create and validate Ingress definitions. You can wait until is ready to running the next command: kubectl wait --namespace ingress-nginx \\ --for=condition=ready pod \\ --selector=app.kubernetes.io/component=controller \\ --timeout=120s Contents \u00b6 Provider Specific Steps Docker for Mac minikube AWS GCE - GKE Azure Digital Ocean Bare-metal Verify installation Detect installed version Using Helm Provider Specific Steps \u00b6 Docker for Mac \u00b6 Kubernetes is available in Docker for Mac (from version 18.06.0-ce ) kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml minikube \u00b6 For standard usage: minikube addons enable ingress AWS \u00b6 In AWS we use a Network load balancer (NLB) to expose the NGINX Ingress controller behind a Service of Type=LoadBalancer . Network Load Balancer (NLB) \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy.yaml TLS termination in AWS Load Balancer (ELB) \u00b6 In some scenarios is required to terminate TLS in the Load Balancer and not in the ingress controller. For this purpose we provide a template: Download deploy-tls-termination.yaml wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy-tls-termination.yaml Edit the file and change: VPC CIDR in use for the Kubernetes cluster: proxy-real-ip-cidr: XXX.XXX.XXX/XX AWS Certificate Manager (ACM) ID arn:aws:acm:us-west-2:XXXXXXXX:certificate/XXXXXX-XXXXXXX-XXXXXXX-XXXXXXXX Deploy the manifest: kubectl apply -f deploy-tls-termination.yaml NLB Idle Timeouts \u00b6 Idle timeout values for TCP flows is 350 seconds and cannot be modified . For this reason, you need to ensure the keepalive_timeout configured value is less than 350 seconds to work as expected. By default NGINX keepalive_timeout is set to 75s . More information with regards to timeouts for can be found in the official AWS documentation GCE-GKE \u00b6 Info Initialize your user as a cluster-admin with the following command: kubectl create clusterrolebinding cluster-admin-binding \\ --clusterrole cluster-admin \\ --user $(gcloud config get-value account) Danger For private clusters, you will need to either add an additional firewall rule that allows master nodes access port 8443/tcp on worker nodes, or change the existing rule that allows access to ports 80/tcp , 443/tcp and 10254/tcp to also allow access to port 8443/tcp . See the GKE documentation on adding rules and the Kubernetes issue for more detail. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Failure Proxy protocol is not supported in GCE/GKE Azure \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Digital Ocean \u00b6 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/do/deploy.yaml Bare-metal \u00b6 Using NodePort : kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/baremetal/deploy.yaml Tip For extended notes regarding deployments on bare-metal, see Bare-metal considerations . Verify installation \u00b6 Info In minikube the ingress addon is installed in the namespace kube-system instead of ingress-nginx To check if the ingress controller pods have started, run the following command: kubectl get pods -n ingress-nginx \\ -l app.kubernetes.io/name=ingress-nginx --watch Once the ingress controller pods are running, you can cancel the command typing Ctrl+C . Now, you are ready to create your first ingress. Detect installed version \u00b6 To detect which version of the ingress controller is running, exec into the pod and run nginx-ingress-controller version command. POD_NAMESPACE=ingress-nginx POD_NAME=$(kubectl get pods -n $POD_NAMESPACE -l app.kubernetes.io/name=ingress-nginx --field-selector=status.phase=Running -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -n $POD_NAMESPACE -- /nginx-ingress-controller --version Using Helm \u00b6 NGINX Ingress controller can be installed via Helm using the chart from the project repository. To install the chart with the release name ingress-nginx : helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm install my-release ingress-nginx/ingress-nginx If you are using Helm 2 then specify release name using --name flag helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx/ helm install --name ingress-nginx ingress-nginx/ingress-nginx Detect installed version: \u00b6 POD_NAME=$(kubectl get pods -l app.kubernetes.io/name=ingress-nginx -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -- /nginx-ingress-controller --version","title":"Installation Guide"},{"location":"deploy/#installation-guide","text":"Attention The default configuration watches Ingress object from all the namespaces . To change this behavior use the flag --watch-namespace to limit the scope to a particular namespace. Warning If multiple Ingresses define paths for the same host, the ingress controller merges the definitions . Danger The admission webhook requires connectivity between Kubernetes API server and the ingress controller. In case Network policies or additional firewalls, please allow access to port 8443 . Attention The first time the ingress controller starts, two Jobs create the SSL Certificate used by the admission webhook. For this reason, there is an initial delay of up to two minutes until it is possible to create and validate Ingress definitions. You can wait until is ready to running the next command: kubectl wait --namespace ingress-nginx \\ --for=condition=ready pod \\ --selector=app.kubernetes.io/component=controller \\ --timeout=120s","title":"Installation Guide"},{"location":"deploy/#contents","text":"Provider Specific Steps Docker for Mac minikube AWS GCE - GKE Azure Digital Ocean Bare-metal Verify installation Detect installed version Using Helm","title":"Contents"},{"location":"deploy/#provider-specific-steps","text":"","title":"Provider Specific Steps"},{"location":"deploy/#docker-for-mac","text":"Kubernetes is available in Docker for Mac (from version 18.06.0-ce ) kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml","title":"Docker for Mac"},{"location":"deploy/#minikube","text":"For standard usage: minikube addons enable ingress","title":"minikube"},{"location":"deploy/#aws","text":"In AWS we use a Network load balancer (NLB) to expose the NGINX Ingress controller behind a Service of Type=LoadBalancer .","title":"AWS"},{"location":"deploy/#network-load-balancer-nlb","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy.yaml","title":"Network Load Balancer (NLB)"},{"location":"deploy/#tls-termination-in-aws-load-balancer-elb","text":"In some scenarios is required to terminate TLS in the Load Balancer and not in the ingress controller. For this purpose we provide a template: Download deploy-tls-termination.yaml wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/aws/deploy-tls-termination.yaml Edit the file and change: VPC CIDR in use for the Kubernetes cluster: proxy-real-ip-cidr: XXX.XXX.XXX/XX AWS Certificate Manager (ACM) ID arn:aws:acm:us-west-2:XXXXXXXX:certificate/XXXXXX-XXXXXXX-XXXXXXX-XXXXXXXX Deploy the manifest: kubectl apply -f deploy-tls-termination.yaml","title":"TLS termination in AWS Load Balancer (ELB)"},{"location":"deploy/#nlb-idle-timeouts","text":"Idle timeout values for TCP flows is 350 seconds and cannot be modified . For this reason, you need to ensure the keepalive_timeout configured value is less than 350 seconds to work as expected. By default NGINX keepalive_timeout is set to 75s . More information with regards to timeouts for can be found in the official AWS documentation","title":"NLB Idle Timeouts"},{"location":"deploy/#gce-gke","text":"Info Initialize your user as a cluster-admin with the following command: kubectl create clusterrolebinding cluster-admin-binding \\ --clusterrole cluster-admin \\ --user $(gcloud config get-value account) Danger For private clusters, you will need to either add an additional firewall rule that allows master nodes access port 8443/tcp on worker nodes, or change the existing rule that allows access to ports 80/tcp , 443/tcp and 10254/tcp to also allow access to port 8443/tcp . See the GKE documentation on adding rules and the Kubernetes issue for more detail. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml Failure Proxy protocol is not supported in GCE/GKE","title":"GCE-GKE"},{"location":"deploy/#azure","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/cloud/deploy.yaml","title":"Azure"},{"location":"deploy/#digital-ocean","text":"kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/do/deploy.yaml","title":"Digital Ocean"},{"location":"deploy/#bare-metal","text":"Using NodePort : kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.35.0/deploy/static/provider/baremetal/deploy.yaml Tip For extended notes regarding deployments on bare-metal, see Bare-metal considerations .","title":"Bare-metal"},{"location":"deploy/#verify-installation","text":"Info In minikube the ingress addon is installed in the namespace kube-system instead of ingress-nginx To check if the ingress controller pods have started, run the following command: kubectl get pods -n ingress-nginx \\ -l app.kubernetes.io/name=ingress-nginx --watch Once the ingress controller pods are running, you can cancel the command typing Ctrl+C . Now, you are ready to create your first ingress.","title":"Verify installation"},{"location":"deploy/#detect-installed-version","text":"To detect which version of the ingress controller is running, exec into the pod and run nginx-ingress-controller version command. POD_NAMESPACE=ingress-nginx POD_NAME=$(kubectl get pods -n $POD_NAMESPACE -l app.kubernetes.io/name=ingress-nginx --field-selector=status.phase=Running -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -n $POD_NAMESPACE -- /nginx-ingress-controller --version","title":"Detect installed version"},{"location":"deploy/#using-helm","text":"NGINX Ingress controller can be installed via Helm using the chart from the project repository. To install the chart with the release name ingress-nginx : helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx helm install my-release ingress-nginx/ingress-nginx If you are using Helm 2 then specify release name using --name flag helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx/ helm install --name ingress-nginx ingress-nginx/ingress-nginx","title":"Using Helm"},{"location":"deploy/#detect-installed-version_1","text":"POD_NAME=$(kubectl get pods -l app.kubernetes.io/name=ingress-nginx -o jsonpath='{.items[0].metadata.name}') kubectl exec -it $POD_NAME -- /nginx-ingress-controller --version","title":"Detect installed version:"},{"location":"deploy/baremetal/","text":"Bare-metal considerations \u00b6 In traditional cloud environments, where network load balancers are available on-demand, a single Kubernetes manifest suffices to provide a single point of contact to the NGINX Ingress controller to external clients and, indirectly, to any application running inside the cluster. Bare-metal environments lack this commodity, requiring a slightly different setup to offer the same kind of access to external consumers. The rest of this document describes a few recommended approaches to deploying the NGINX Ingress controller inside a Kubernetes cluster running on bare-metal. A pure software solution: MetalLB \u00b6 MetalLB provides a network load-balancer implementation for Kubernetes clusters that do not run on a supported cloud provider, effectively allowing the usage of LoadBalancer Services within any cluster. This section demonstrates how to use the Layer 2 configuration mode of MetalLB together with the NGINX Ingress controller in a Kubernetes cluster that has publicly accessible nodes . In this mode, one node attracts all the traffic for the ingress-nginx Service IP. See Traffic policies for more details. Note The description of other supported configuration modes is off-scope for this document. Warning MetalLB is currently in beta . Read about the Project maturity and make sure you inform yourself by reading the official documentation thoroughly. MetalLB can be deployed either with a simple Kubernetes manifest or with Helm. The rest of this example assumes MetalLB was deployed following the Installation instructions. MetalLB requires a pool of IP addresses in order to be able to take ownership of the ingress-nginx Service. This pool can be defined in a ConfigMap named config located in the same namespace as the MetalLB controller. This pool of IPs must be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 After creating the following ConfigMap, MetalLB takes ownership of one of the IP addresses in the pool and updates the loadBalancer IP field of the ingress-nginx Service accordingly. apiVersion : v1 kind : ConfigMap metadata : namespace : metallb-system name : config data : config : | address-pools: - name: default protocol: layer2 addresses: - 203.0.113.10-203.0.113.15 $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 <none> 80/TCP ingress-nginx LoadBalancer 10.0.220.217 203.0.113.10 80:30100/TCP,443:30101/TCP As soon as MetalLB sets the external IP address of the ingress-nginx LoadBalancer Service, the corresponding entries are created in the iptables NAT table and the node with the selected IP address starts responding to HTTP requests on the ports configured in the LoadBalancer Service: $ curl -D- http://203.0.113.3 -H 'Host: myapp.example.com' HTTP/1.1 200 OK Server: nginx/1.15.2 Tip In order to preserve the source IP address in HTTP requests sent to NGINX, it is necessary to use the Local traffic policy. Traffic policies are described in more details in Traffic policies as well as in the next section. Over a NodePort Service \u00b6 Due to its simplicity, this is the setup a user will deploy by default when following the steps described in the installation guide . Info A Service of type NodePort exposes, via the kube-proxy component, the same unprivileged port (default: 30000-32767) on every Kubernetes node, masters included. For more information, see Services . In this configuration, the NGINX container remains isolated from the host network. As a result, it can safely bind to any port, including the standard HTTP ports 80 and 443. However, due to the container namespace isolation, a client located outside the cluster network (e.g. on the public internet) is not able to access Ingress hosts directly on ports 80 and 443. Instead, the external client must append the NodePort allocated to the ingress-nginx Service to HTTP requests. Example Given the NodePort 30100 allocated to the ingress-nginx Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 80/TCP ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP and a Kubernetes node with the public IP address 203.0.113.2 (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 a client would reach an Ingress with host: myapp.example.com at http://myapp.example.com:30100 , where the myapp.example.com subdomain resolves to the 203.0.113.2 IP address. Impact on the host system While it may sound tempting to reconfigure the NodePort range using the --service-node-port-range API server flag to include unprivileged ports and be able to expose ports 80 and 443, doing so may result in unexpected issues including (but not limited to) the use of ports otherwise reserved to system daemons and the necessity to grant kube-proxy privileges it may otherwise not require. This practice is therefore discouraged . See the other approaches proposed in this page for alternatives. This approach has a few other limitations one ought to be aware of: Source IP address Services of type NodePort perform source address translation by default. This means the source IP of a HTTP request is always the IP address of the Kubernetes node that received the request from the perspective of NGINX. The recommended way to preserve the source IP in a NodePort setup is to set the value of the externalTrafficPolicy field of the ingress-nginx Service spec to Local ( example ). Warning This setting effectively drops packets sent to Kubernetes nodes which are not running any instance of the NGINX Ingress controller. Consider assigning NGINX Pods to specific nodes in order to control on what nodes the NGINX Ingress controller should be scheduled or not scheduled. Example In a Kubernetes cluster composed of 3 nodes (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 with a ingress-nginx-controller Deployment composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-cf9ff8c96-8vvf8 1/1 Running 172.17.0.3 host-3 ingress-nginx-controller-cf9ff8c96-pxsds 1/1 Running 172.17.1.4 host-2 Requests sent to host-2 and host-3 would be forwarded to NGINX and original client's IP would be preserved, while requests to host-1 would get dropped because there is no NGINX replica running on that node. Ingress status Because NodePort Services do not get a LoadBalancerIP assigned by definition, the NGINX Ingress controller does not update the status of Ingress objects it manages . $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Despite the fact there is no load balancer providing a public IP address to the NGINX Ingress controller, it is possible to force the status update of all managed Ingress objects by setting the externalIPs field of the ingress-nginx Service. Warning There is more to setting externalIPs than just enabling the NGINX Ingress controller to update the status of Ingress objects. Please read about this option in the Services page of official Kubernetes documentation as well as the section about External IPs in this document for more information. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 one could edit the ingress-nginx Service and add the following field to the object spec spec : externalIPs : - 203.0.113.1 - 203.0.113.2 - 203.0.113.3 which would in turn be reflected on Ingress objects as follows: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.1,203.0.113.2,203.0.113.3 80 Redirects As NGINX is not aware of the port translation operated by the NodePort Service , backend applications are responsible for generating redirect URLs that take into account the URL used by external clients, including the NodePort. Example Redirects generated by NGINX, for instance HTTP to HTTPS or domain to www.domain , are generated without NodePort: $ curl -D- http://myapp.example.com:30100 ` HTTP/1.1 308 Permanent Redirect Server: nginx/1.15.2 Location: https://myapp.example.com/ #-> missing NodePort in HTTPS redirect Via the host network \u00b6 In a setup where there is no external load balancer available but using NodePorts is not an option, one can configure ingress-nginx Pods to use the network of the host they run on instead of a dedicated network namespace. The benefit of this approach is that the NGINX Ingress controller can bind ports 80 and 443 directly to Kubernetes nodes' network interfaces, without the extra network translation imposed by NodePort Services. Note This approach does not leverage any Service object to expose the NGINX Ingress controller. If the ingress-nginx Service exists in the target cluster, it is recommended to delete it . This can be achieved by enabling the hostNetwork option in the Pods' spec. template : spec : hostNetwork : true Security considerations Enabling this option exposes every system daemon to the NGINX Ingress controller on any network interface, including the host's loopback. Please evaluate the impact this may have on the security of your system carefully. Example Consider this ingress-nginx-controller Deployment composed of 2 replicas, NGINX Pods inherit from the IP address of their host instead of an internal Pod IP. $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 One major limitation of this deployment approach is that only a single NGINX Ingress controller Pod may be scheduled on each cluster node, because binding the same port multiple times on the same network interface is technically impossible. Pods that are unschedulable due to such situation fail with the following event: $ kubectl -n ingress-nginx describe pod <unschedulable-ingress-nginx-controller-pod> ... Events: Type Reason From Message ---- ------ ---- ------- Warning FailedScheduling default-scheduler 0/3 nodes are available: 3 node(s) didn't have free ports for the requested pod ports. One way to ensure only schedulable Pods are created is to deploy the NGINX Ingress controller as a DaemonSet instead of a traditional Deployment. Info A DaemonSet schedules exactly one type of Pod per cluster node, masters included, unless a node is configured to repel those Pods . For more information, see DaemonSet . Because most properties of DaemonSet objects are identical to Deployment objects, this documentation page leaves the configuration of the corresponding manifest at the user's discretion. Like with NodePorts, this approach has a few quirks it is important to be aware of. DNS resolution Pods configured with hostNetwork: true do not use the internal DNS resolver (i.e. kube-dns or CoreDNS ), unless their dnsPolicy spec field is set to ClusterFirstWithHostNet . Consider using this setting if NGINX is expected to resolve internal names for any reason. Ingress status Because there is no Service exposing the NGINX Ingress controller in a configuration using the host network, the default --publish-service flag used in standard cloud setups does not apply and the status of all Ingress objects remains blank. $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Instead, and because bare-metal nodes usually don't have an ExternalIP, one has to enable the --report-node-internal-ip-address flag, which sets the status of all Ingress objects to the internal IP address of all nodes running the NGINX Ingress controller. Example Given a ingress-nginx-controller DaemonSet composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 the controller sets the status of all Ingress objects it manages to the following value: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.2,203.0.113.3 80 Note Alternatively, it is possible to override the address written to Ingress objects using the --publish-status-address flag. See Command line arguments . Using a self-provisioned edge \u00b6 Similarly to cloud environments, this deployment approach requires an edge network component providing a public entrypoint to the Kubernetes cluster. This edge component can be either hardware (e.g. vendor appliance) or software (e.g. HAproxy ) and is usually managed outside of the Kubernetes landscape by operations teams. Such deployment builds upon the NodePort Service described above in Over a NodePort Service , with one significant difference: external clients do not access cluster nodes directly, only the edge component does. This is particularly suitable for private Kubernetes clusters where none of the nodes has a public IP address. On the edge side, the only prerequisite is to dedicate a public IP address that forwards all HTTP traffic to Kubernetes nodes and/or masters. Incoming traffic on TCP ports 80 and 443 is forwarded to the corresponding HTTP and HTTPS NodePort on the target nodes as shown in the diagram below: External IPs \u00b6 Source IP address This method does not allow preserving the source IP of HTTP requests in any manner, it is therefore not recommended to use it despite its apparent simplicity. The externalIPs Service option was previously mentioned in the NodePort section. As per the Services page of the official Kubernetes documentation, the externalIPs option causes kube-proxy to route traffic sent to arbitrary IP addresses and on the Service ports to the endpoints of that Service. These IP addresses must belong to the target node . Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 and the following ingress-nginx NodePort Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP One could set the following external IPs in the Service spec, and NGINX would become available on both the NodePort and the Service port: spec : externalIPs : - 203.0.113.2 - 203.0.113.3 $ curl -D- http://myapp.example.com:30100 HTTP/1.1 200 OK Server: nginx/1.15.2 $ curl -D- http://myapp.example.com HTTP/1.1 200 OK Server: nginx/1.15.2 We assume the myapp.example.com subdomain above resolves to both 203.0.113.2 and 203.0.113.3 IP addresses.","title":"Bare-metal considerations"},{"location":"deploy/baremetal/#bare-metal-considerations","text":"In traditional cloud environments, where network load balancers are available on-demand, a single Kubernetes manifest suffices to provide a single point of contact to the NGINX Ingress controller to external clients and, indirectly, to any application running inside the cluster. Bare-metal environments lack this commodity, requiring a slightly different setup to offer the same kind of access to external consumers. The rest of this document describes a few recommended approaches to deploying the NGINX Ingress controller inside a Kubernetes cluster running on bare-metal.","title":"Bare-metal considerations"},{"location":"deploy/baremetal/#a-pure-software-solution-metallb","text":"MetalLB provides a network load-balancer implementation for Kubernetes clusters that do not run on a supported cloud provider, effectively allowing the usage of LoadBalancer Services within any cluster. This section demonstrates how to use the Layer 2 configuration mode of MetalLB together with the NGINX Ingress controller in a Kubernetes cluster that has publicly accessible nodes . In this mode, one node attracts all the traffic for the ingress-nginx Service IP. See Traffic policies for more details. Note The description of other supported configuration modes is off-scope for this document. Warning MetalLB is currently in beta . Read about the Project maturity and make sure you inform yourself by reading the official documentation thoroughly. MetalLB can be deployed either with a simple Kubernetes manifest or with Helm. The rest of this example assumes MetalLB was deployed following the Installation instructions. MetalLB requires a pool of IP addresses in order to be able to take ownership of the ingress-nginx Service. This pool can be defined in a ConfigMap named config located in the same namespace as the MetalLB controller. This pool of IPs must be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 After creating the following ConfigMap, MetalLB takes ownership of one of the IP addresses in the pool and updates the loadBalancer IP field of the ingress-nginx Service accordingly. apiVersion : v1 kind : ConfigMap metadata : namespace : metallb-system name : config data : config : | address-pools: - name: default protocol: layer2 addresses: - 203.0.113.10-203.0.113.15 $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 <none> 80/TCP ingress-nginx LoadBalancer 10.0.220.217 203.0.113.10 80:30100/TCP,443:30101/TCP As soon as MetalLB sets the external IP address of the ingress-nginx LoadBalancer Service, the corresponding entries are created in the iptables NAT table and the node with the selected IP address starts responding to HTTP requests on the ports configured in the LoadBalancer Service: $ curl -D- http://203.0.113.3 -H 'Host: myapp.example.com' HTTP/1.1 200 OK Server: nginx/1.15.2 Tip In order to preserve the source IP address in HTTP requests sent to NGINX, it is necessary to use the Local traffic policy. Traffic policies are described in more details in Traffic policies as well as in the next section.","title":"A pure software solution: MetalLB"},{"location":"deploy/baremetal/#over-a-nodeport-service","text":"Due to its simplicity, this is the setup a user will deploy by default when following the steps described in the installation guide . Info A Service of type NodePort exposes, via the kube-proxy component, the same unprivileged port (default: 30000-32767) on every Kubernetes node, masters included. For more information, see Services . In this configuration, the NGINX container remains isolated from the host network. As a result, it can safely bind to any port, including the standard HTTP ports 80 and 443. However, due to the container namespace isolation, a client located outside the cluster network (e.g. on the public internet) is not able to access Ingress hosts directly on ports 80 and 443. Instead, the external client must append the NodePort allocated to the ingress-nginx Service to HTTP requests. Example Given the NodePort 30100 allocated to the ingress-nginx Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) default-http-backend ClusterIP 10.0.64.249 80/TCP ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP and a Kubernetes node with the public IP address 203.0.113.2 (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 a client would reach an Ingress with host: myapp.example.com at http://myapp.example.com:30100 , where the myapp.example.com subdomain resolves to the 203.0.113.2 IP address. Impact on the host system While it may sound tempting to reconfigure the NodePort range using the --service-node-port-range API server flag to include unprivileged ports and be able to expose ports 80 and 443, doing so may result in unexpected issues including (but not limited to) the use of ports otherwise reserved to system daemons and the necessity to grant kube-proxy privileges it may otherwise not require. This practice is therefore discouraged . See the other approaches proposed in this page for alternatives. This approach has a few other limitations one ought to be aware of: Source IP address Services of type NodePort perform source address translation by default. This means the source IP of a HTTP request is always the IP address of the Kubernetes node that received the request from the perspective of NGINX. The recommended way to preserve the source IP in a NodePort setup is to set the value of the externalTrafficPolicy field of the ingress-nginx Service spec to Local ( example ). Warning This setting effectively drops packets sent to Kubernetes nodes which are not running any instance of the NGINX Ingress controller. Consider assigning NGINX Pods to specific nodes in order to control on what nodes the NGINX Ingress controller should be scheduled or not scheduled. Example In a Kubernetes cluster composed of 3 nodes (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 with a ingress-nginx-controller Deployment composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-cf9ff8c96-8vvf8 1/1 Running 172.17.0.3 host-3 ingress-nginx-controller-cf9ff8c96-pxsds 1/1 Running 172.17.1.4 host-2 Requests sent to host-2 and host-3 would be forwarded to NGINX and original client's IP would be preserved, while requests to host-1 would get dropped because there is no NGINX replica running on that node. Ingress status Because NodePort Services do not get a LoadBalancerIP assigned by definition, the NGINX Ingress controller does not update the status of Ingress objects it manages . $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Despite the fact there is no load balancer providing a public IP address to the NGINX Ingress controller, it is possible to force the status update of all managed Ingress objects by setting the externalIPs field of the ingress-nginx Service. Warning There is more to setting externalIPs than just enabling the NGINX Ingress controller to update the status of Ingress objects. Please read about this option in the Services page of official Kubernetes documentation as well as the section about External IPs in this document for more information. Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 one could edit the ingress-nginx Service and add the following field to the object spec spec : externalIPs : - 203.0.113.1 - 203.0.113.2 - 203.0.113.3 which would in turn be reflected on Ingress objects as follows: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.1,203.0.113.2,203.0.113.3 80 Redirects As NGINX is not aware of the port translation operated by the NodePort Service , backend applications are responsible for generating redirect URLs that take into account the URL used by external clients, including the NodePort. Example Redirects generated by NGINX, for instance HTTP to HTTPS or domain to www.domain , are generated without NodePort: $ curl -D- http://myapp.example.com:30100 ` HTTP/1.1 308 Permanent Redirect Server: nginx/1.15.2 Location: https://myapp.example.com/ #-> missing NodePort in HTTPS redirect","title":"Over a NodePort Service"},{"location":"deploy/baremetal/#via-the-host-network","text":"In a setup where there is no external load balancer available but using NodePorts is not an option, one can configure ingress-nginx Pods to use the network of the host they run on instead of a dedicated network namespace. The benefit of this approach is that the NGINX Ingress controller can bind ports 80 and 443 directly to Kubernetes nodes' network interfaces, without the extra network translation imposed by NodePort Services. Note This approach does not leverage any Service object to expose the NGINX Ingress controller. If the ingress-nginx Service exists in the target cluster, it is recommended to delete it . This can be achieved by enabling the hostNetwork option in the Pods' spec. template : spec : hostNetwork : true Security considerations Enabling this option exposes every system daemon to the NGINX Ingress controller on any network interface, including the host's loopback. Please evaluate the impact this may have on the security of your system carefully. Example Consider this ingress-nginx-controller Deployment composed of 2 replicas, NGINX Pods inherit from the IP address of their host instead of an internal Pod IP. $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 One major limitation of this deployment approach is that only a single NGINX Ingress controller Pod may be scheduled on each cluster node, because binding the same port multiple times on the same network interface is technically impossible. Pods that are unschedulable due to such situation fail with the following event: $ kubectl -n ingress-nginx describe pod <unschedulable-ingress-nginx-controller-pod> ... Events: Type Reason From Message ---- ------ ---- ------- Warning FailedScheduling default-scheduler 0/3 nodes are available: 3 node(s) didn't have free ports for the requested pod ports. One way to ensure only schedulable Pods are created is to deploy the NGINX Ingress controller as a DaemonSet instead of a traditional Deployment. Info A DaemonSet schedules exactly one type of Pod per cluster node, masters included, unless a node is configured to repel those Pods . For more information, see DaemonSet . Because most properties of DaemonSet objects are identical to Deployment objects, this documentation page leaves the configuration of the corresponding manifest at the user's discretion. Like with NodePorts, this approach has a few quirks it is important to be aware of. DNS resolution Pods configured with hostNetwork: true do not use the internal DNS resolver (i.e. kube-dns or CoreDNS ), unless their dnsPolicy spec field is set to ClusterFirstWithHostNet . Consider using this setting if NGINX is expected to resolve internal names for any reason. Ingress status Because there is no Service exposing the NGINX Ingress controller in a configuration using the host network, the default --publish-service flag used in standard cloud setups does not apply and the status of all Ingress objects remains blank. $ kubectl get ingress NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 80 Instead, and because bare-metal nodes usually don't have an ExternalIP, one has to enable the --report-node-internal-ip-address flag, which sets the status of all Ingress objects to the internal IP address of all nodes running the NGINX Ingress controller. Example Given a ingress-nginx-controller DaemonSet composed of 2 replicas $ kubectl -n ingress-nginx get pod -o wide NAME READY STATUS IP NODE default-http-backend-7c5bc89cc9-p86md 1/1 Running 172.17.1.1 host-2 ingress-nginx-controller-5b4cf5fc6-7lg6c 1/1 Running 203.0.113.3 host-3 ingress-nginx-controller-5b4cf5fc6-lzrls 1/1 Running 203.0.113.2 host-2 the controller sets the status of all Ingress objects it manages to the following value: $ kubectl get ingress -o wide NAME HOSTS ADDRESS PORTS test-ingress myapp.example.com 203.0.113.2,203.0.113.3 80 Note Alternatively, it is possible to override the address written to Ingress objects using the --publish-status-address flag. See Command line arguments .","title":"Via the host network"},{"location":"deploy/baremetal/#using-a-self-provisioned-edge","text":"Similarly to cloud environments, this deployment approach requires an edge network component providing a public entrypoint to the Kubernetes cluster. This edge component can be either hardware (e.g. vendor appliance) or software (e.g. HAproxy ) and is usually managed outside of the Kubernetes landscape by operations teams. Such deployment builds upon the NodePort Service described above in Over a NodePort Service , with one significant difference: external clients do not access cluster nodes directly, only the edge component does. This is particularly suitable for private Kubernetes clusters where none of the nodes has a public IP address. On the edge side, the only prerequisite is to dedicate a public IP address that forwards all HTTP traffic to Kubernetes nodes and/or masters. Incoming traffic on TCP ports 80 and 443 is forwarded to the corresponding HTTP and HTTPS NodePort on the target nodes as shown in the diagram below:","title":"Using a self-provisioned edge"},{"location":"deploy/baremetal/#external-ips","text":"Source IP address This method does not allow preserving the source IP of HTTP requests in any manner, it is therefore not recommended to use it despite its apparent simplicity. The externalIPs Service option was previously mentioned in the NodePort section. As per the Services page of the official Kubernetes documentation, the externalIPs option causes kube-proxy to route traffic sent to arbitrary IP addresses and on the Service ports to the endpoints of that Service. These IP addresses must belong to the target node . Example Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal environments this value is <None>) $ kubectl get node NAME STATUS ROLES EXTERNAL-IP host-1 Ready master 203.0.113.1 host-2 Ready node 203.0.113.2 host-3 Ready node 203.0.113.3 and the following ingress-nginx NodePort Service $ kubectl -n ingress-nginx get svc NAME TYPE CLUSTER-IP PORT(S) ingress-nginx NodePort 10.0.220.217 80:30100/TCP,443:30101/TCP One could set the following external IPs in the Service spec, and NGINX would become available on both the NodePort and the Service port: spec : externalIPs : - 203.0.113.2 - 203.0.113.3 $ curl -D- http://myapp.example.com:30100 HTTP/1.1 200 OK Server: nginx/1.15.2 $ curl -D- http://myapp.example.com HTTP/1.1 200 OK Server: nginx/1.15.2 We assume the myapp.example.com subdomain above resolves to both 203.0.113.2 and 203.0.113.3 IP addresses.","title":"External IPs"},{"location":"deploy/hardening-guide/","text":"Hardening Guide \u00b6 Overview \u00b6 There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are overlapping in some points: nginx CIS Benchmark cipherlist.eu (one of many forks of the now dead project cipherli.st) This guide describes, what of the different configurations described in those guides is already implemented as default in the nginx implementation of kubernetes ingress, what needs to be configured, what is obsolete due to the fact that the nginx is running as container (the CIS benchmark relates to a non-containerized installation) and what is difficult or not possible. Be aware that this is only a guide and you are responsible for your own implementation. Some of the configurations may lead to have specific clients unable to reach your site or similar consequences. This guide refers to chapters in the CIS Benchmark. For full explanation you should refer to the benchmark document itself Configuration Guide \u00b6 Chapter in CIS benchmark Status Default Action to do if not default 1 Initial Setup 1.1 Installation 1.1.1 Ensure NGINX is installed (Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.1.2 Ensure NGINX is installed from source (Not Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.2 Configure Software Updates 1.2.1 Ensure package manager repositories are properly configured (Not Scored) OK done via helm, nginx version could be overwritten, however compability is not ensured then 1.2.2 Ensure the latest software package is installed (Not Scored) ACTION NEEDED done via helm, nginx version could be overwritten, however compability is not ensured then Plan for periodic updates 2 Basic Configuration 2.1 Minimize NGINX Modules 2.1.1 Ensure only required modules are installed (Not Scored) OK Already only needed modules are installed, however proposals for further reduction are welcome 2.1.2 Ensure HTTP WebDAV module is not installed (Scored) RISK TO BE ACCEPTED It is installed, see compile options here . Disabling that would require building own image for nginx ingress controller. The effort is too high in comparison to the achieved effect 2.1.3 Ensure modules with gzip functionality are disabled (Scored) RISK TO BE ACCEPTED See previous answer 2.1.4 Ensure the autoindex module is disabled (Scored) OK No autoindex configs so far in ingress defaults 2.2 Account Security 2.2.1 Ensure that NGINX is run using a non-privileged, dedicated service account (Not Scored) OK Pod configured as user www-data: See this line in helm chart values . Compiled with user www-data: See this line in build script 2.2.2 Ensure the NGINX service account is locked (Scored) OK Docker design ensures this 2.2.3 Ensure the NGINX service account has an invalid shell (Scored) OK Shell is nologin: see this line in build script 2.3 Permissions and Ownership 2.3.1 Ensure NGINX directories and files are owned by root (Scored) OK Obsolete through docker-design and ingress controller needs to update the configs dynamically 2.3.2 Ensure access to NGINX directories and files is restricted (Scored) OK See previous answer 2.3.3 Ensure the NGINX process ID (PID) file is secured (Scored) OK No PID-File due to docker design 2.3.4 Ensure the core dump directory is secured (Not Scored) OK No working_directory configured by default 2.4 Network Configuration 2.4.1 Ensure NGINX only listens for network connections on authorized ports (Not Scored) OK Ensured by automatic nginx.conf configuration 2.4.2 Ensure requests for unknown host names are rejected (Not Scored) OK They are not rejected but send to the \"default backend\" delivering approriate errors (mostly 404) 2.4.3 Ensure keepalive_timeout is 10 seconds or less, but not 0 (Scored) ACTION NEEDED Default is 75s configure keep-alive to 10 seconds according to this documentation 2.4.4 Ensure send_timeout is set to 10 seconds or less, but not 0 (Scored) RISK TO BE ACCEPTED Not configured, however the nginx default is 60s Not configurable 2.5 Information Disclosure 2.5.1 Ensure server_tokens directive is set to off (Scored) OK server_tokens is configured to off by defaukt 2.5.2 Ensure default error and index.html pages do not reference NGINX (Scored) ACTION NEEDED 404 shows no version at all, 503 and 403 show \"nginx\", which is hardcoded see this line in nginx source code configure custom error pages at least for 403, 404 and 503 and 500 2.5.3 Ensure hidden file serving is disabled (Not Scored) ACTION NEEDED config not set configure a config.server-snippet Snippet, but beware of .well-known challenges or similar. Refer to the benchmark here please 2.5.4 Ensure the NGINX reverse proxy does not enable information disclosure (Scored) ACTION NEEDED hide not configured configure hide-headers with array of \"X-Powered-By\" and \"Server\": according to this documentation 3 Logging 3.1 Ensure detailed logging is enabled (Not Scored) OK Ningx ingress has a very detailled log format by default 3.2 Ensure access logging is enabled (Scored) OK Access log is enabled by default 3.3 Ensure error logging is enabled and set to the info logging level (Scored) OK Error log is configured by default. The log level does not matter, because it is all sent to STDOUT anyway 3.4 Ensure log files are rotated (Scored) OBSOLETE Log file handling is not part of the nginx ingress and should be handled separatly 3.5 Ensure error logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.6 Ensure access logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.7 Ensure proxies pass source IP information (Scored) OK Headers are set by default 4 Encryption 4.1 TLS / SSL Configuration 4.1.1 Ensure HTTP is redirected to HTTPS (Scored) OK Redirect to TLS is default 4.1.2 Ensure a trusted certificate and trust chain is installed (Not Scored) ACTION NEEDED For installing certs there are enough manuals in the web. A good way is to use lets encrypt through cert-manager Install proper certificates or use lets encrypt with cert-manager 4.1.3 Ensure private key permissions are restricted (Scored) ACTION NEEDED See previous answer 4.1.4 Ensure only modern TLS protocols are used (Scored) OK/ACTION NEEDED Default is TLS 1.2 + 1.3, while this is okay for CIS Benchmark, cipherlist.eu only recommends 1.3. This may cut off old OS's Set controller.config.ssl-protocols to \"TLSv1.3\" 4.1.5 Disable weak ciphers (Scored) ACTION NEEDED Default ciphers are already good, but cipherlist.eu recommends even stronger ciphers Set controller.config.ssl-ciphers to \"EECDH+AESGCM:EDH+AESGCM\" 4.1.6 Ensure custom Diffie-Hellman parameters are used (Scored) ACTION NEEDED No custom DH parameters are generated Generate dh parameters for each ingress deployment you use - see here for a how to 4.1.7 Ensure Online Certificate Status Protocol (OCSP) stapling is enabled (Scored) ACTION NEEDED Not enabled set via this configuration parameter 4.1.8 Ensure HTTP Strict Transport Security (HSTS) is enabled (Scored) OK HSTS is enabled by default 4.1.9 Ensure HTTP Public Key Pinning is enabled (Not Scored) ACTION NEEDED / RISK TO BE ACCEPTED HKPK not enabled by default If lets encrypt is not used, set correct HPKP header. There are several ways to implement this - with the helm charts it works via controller.add-headers. If lets encrypt is used, this is complicated, a solution here is yet unknown 4.1.10 Ensure upstream server traffic is authenticated with a client certificate (Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, manual is here 4.1.11 Ensure the upstream traffic server certificate is trusted (Not Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, see configuration here 4.1.12 Ensure your domain is preloaded (Not Scored) ACTION NEEDED Preload is not active by default Set controller.config.hsts-preload to true 4.1.13 Ensure session resumption is disabled to enable perfect forward security (Scored) ACTION NEEDED Session tickets are enabled by default Set controller.config.ssl-session-tickets to false 4.1.14 Ensure HTTP/2.0 is used (Not Scored) OK http2 is set by default 5 Request Filtering and Restrictions 5.1 Access Control 5.1.1 Ensure allow and deny filters limit access to specific IP addresses (Not Scored) OK/ACTION NEEDED Depends on use case, geo ip module is compiled into nginx ingress controller, there are several ways to use it If needed set IP restrictions via annotations or work with config snippets (be careful with lets-encrypt-http-challenge!) 5.1.2 Ensure only whitelisted HTTP methods are allowed (Not Scored) OK/ACTION NEEDED Depends on use case If required it can be set via config snippet 5.2 Request Limits 5.2.1 Ensure timeout values for reading the client header and body are set correctly (Scored) ACTION NEEDED Default timeout is 60s Set via this configuration parameter and respective body aequivalent 5.2.2 Ensure the maximum request body size is set correctly (Scored) ACTION NEEDED Default is 1m set via this configuration parameter 5.2.3 Ensure the maximum buffer size for URIs is defined (Scored) ACTION NEEDED Default is 4 8k Set via this configuration parameter 5.2.4 Ensure the number of connections per IP address is limited (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.2.5 Ensure rate limits by IP address are set (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.3 Browser Security 5.3.1 Ensure X-Frame-Options header is configured and enabled (Scored) ACTION NEEDED Header not set by default Several ways to implement this - with the helm charts it works via controller.add-headers 5.3.2 Ensure X-Content-Type-Options header is configured and enabled (Scored) ACTION NEEDED See previous answer See previous answer 5.3.3 Ensure the X-XSS-Protection Header is enabled and configured properly (Scored) ACTION NEEDED See previous answer See previous answer 5.3.4 Ensure that Content Security Policy (CSP) is enabled and configured properly (Not Scored) ACTION NEEDED See previous answer See previous answer 5.3.5 Ensure the Referrer Policy is enabled and configured properly (Not Scored) ACTION NEEDED Depends on application. It should be handled in the applications webserver itself, not in the load balancing ingress check backend webserver 6 Mandatory Access Control n/a too high level, depends on backends @media only screen and (min-width: 768px) { td:nth-child(1){ white-space:normal !important; } .md-typeset table:not([class]) td { padding: .2rem .3rem; } }","title":"Hardening guide"},{"location":"deploy/hardening-guide/#hardening-guide","text":"","title":"Hardening Guide"},{"location":"deploy/hardening-guide/#overview","text":"There are several ways to do hardening and securing of nginx. In this documentation two guides are used, the guides are overlapping in some points: nginx CIS Benchmark cipherlist.eu (one of many forks of the now dead project cipherli.st) This guide describes, what of the different configurations described in those guides is already implemented as default in the nginx implementation of kubernetes ingress, what needs to be configured, what is obsolete due to the fact that the nginx is running as container (the CIS benchmark relates to a non-containerized installation) and what is difficult or not possible. Be aware that this is only a guide and you are responsible for your own implementation. Some of the configurations may lead to have specific clients unable to reach your site or similar consequences. This guide refers to chapters in the CIS Benchmark. For full explanation you should refer to the benchmark document itself","title":"Overview"},{"location":"deploy/hardening-guide/#configuration-guide","text":"Chapter in CIS benchmark Status Default Action to do if not default 1 Initial Setup 1.1 Installation 1.1.1 Ensure NGINX is installed (Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.1.2 Ensure NGINX is installed from source (Not Scored) OK done through helm charts / following documentation to deploy nginx ingress 1.2 Configure Software Updates 1.2.1 Ensure package manager repositories are properly configured (Not Scored) OK done via helm, nginx version could be overwritten, however compability is not ensured then 1.2.2 Ensure the latest software package is installed (Not Scored) ACTION NEEDED done via helm, nginx version could be overwritten, however compability is not ensured then Plan for periodic updates 2 Basic Configuration 2.1 Minimize NGINX Modules 2.1.1 Ensure only required modules are installed (Not Scored) OK Already only needed modules are installed, however proposals for further reduction are welcome 2.1.2 Ensure HTTP WebDAV module is not installed (Scored) RISK TO BE ACCEPTED It is installed, see compile options here . Disabling that would require building own image for nginx ingress controller. The effort is too high in comparison to the achieved effect 2.1.3 Ensure modules with gzip functionality are disabled (Scored) RISK TO BE ACCEPTED See previous answer 2.1.4 Ensure the autoindex module is disabled (Scored) OK No autoindex configs so far in ingress defaults 2.2 Account Security 2.2.1 Ensure that NGINX is run using a non-privileged, dedicated service account (Not Scored) OK Pod configured as user www-data: See this line in helm chart values . Compiled with user www-data: See this line in build script 2.2.2 Ensure the NGINX service account is locked (Scored) OK Docker design ensures this 2.2.3 Ensure the NGINX service account has an invalid shell (Scored) OK Shell is nologin: see this line in build script 2.3 Permissions and Ownership 2.3.1 Ensure NGINX directories and files are owned by root (Scored) OK Obsolete through docker-design and ingress controller needs to update the configs dynamically 2.3.2 Ensure access to NGINX directories and files is restricted (Scored) OK See previous answer 2.3.3 Ensure the NGINX process ID (PID) file is secured (Scored) OK No PID-File due to docker design 2.3.4 Ensure the core dump directory is secured (Not Scored) OK No working_directory configured by default 2.4 Network Configuration 2.4.1 Ensure NGINX only listens for network connections on authorized ports (Not Scored) OK Ensured by automatic nginx.conf configuration 2.4.2 Ensure requests for unknown host names are rejected (Not Scored) OK They are not rejected but send to the \"default backend\" delivering approriate errors (mostly 404) 2.4.3 Ensure keepalive_timeout is 10 seconds or less, but not 0 (Scored) ACTION NEEDED Default is 75s configure keep-alive to 10 seconds according to this documentation 2.4.4 Ensure send_timeout is set to 10 seconds or less, but not 0 (Scored) RISK TO BE ACCEPTED Not configured, however the nginx default is 60s Not configurable 2.5 Information Disclosure 2.5.1 Ensure server_tokens directive is set to off (Scored) OK server_tokens is configured to off by defaukt 2.5.2 Ensure default error and index.html pages do not reference NGINX (Scored) ACTION NEEDED 404 shows no version at all, 503 and 403 show \"nginx\", which is hardcoded see this line in nginx source code configure custom error pages at least for 403, 404 and 503 and 500 2.5.3 Ensure hidden file serving is disabled (Not Scored) ACTION NEEDED config not set configure a config.server-snippet Snippet, but beware of .well-known challenges or similar. Refer to the benchmark here please 2.5.4 Ensure the NGINX reverse proxy does not enable information disclosure (Scored) ACTION NEEDED hide not configured configure hide-headers with array of \"X-Powered-By\" and \"Server\": according to this documentation 3 Logging 3.1 Ensure detailed logging is enabled (Not Scored) OK Ningx ingress has a very detailled log format by default 3.2 Ensure access logging is enabled (Scored) OK Access log is enabled by default 3.3 Ensure error logging is enabled and set to the info logging level (Scored) OK Error log is configured by default. The log level does not matter, because it is all sent to STDOUT anyway 3.4 Ensure log files are rotated (Scored) OBSOLETE Log file handling is not part of the nginx ingress and should be handled separatly 3.5 Ensure error logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.6 Ensure access logs are sent to a remote syslog server (Not Scored) OBSOLETE See previous answer 3.7 Ensure proxies pass source IP information (Scored) OK Headers are set by default 4 Encryption 4.1 TLS / SSL Configuration 4.1.1 Ensure HTTP is redirected to HTTPS (Scored) OK Redirect to TLS is default 4.1.2 Ensure a trusted certificate and trust chain is installed (Not Scored) ACTION NEEDED For installing certs there are enough manuals in the web. A good way is to use lets encrypt through cert-manager Install proper certificates or use lets encrypt with cert-manager 4.1.3 Ensure private key permissions are restricted (Scored) ACTION NEEDED See previous answer 4.1.4 Ensure only modern TLS protocols are used (Scored) OK/ACTION NEEDED Default is TLS 1.2 + 1.3, while this is okay for CIS Benchmark, cipherlist.eu only recommends 1.3. This may cut off old OS's Set controller.config.ssl-protocols to \"TLSv1.3\" 4.1.5 Disable weak ciphers (Scored) ACTION NEEDED Default ciphers are already good, but cipherlist.eu recommends even stronger ciphers Set controller.config.ssl-ciphers to \"EECDH+AESGCM:EDH+AESGCM\" 4.1.6 Ensure custom Diffie-Hellman parameters are used (Scored) ACTION NEEDED No custom DH parameters are generated Generate dh parameters for each ingress deployment you use - see here for a how to 4.1.7 Ensure Online Certificate Status Protocol (OCSP) stapling is enabled (Scored) ACTION NEEDED Not enabled set via this configuration parameter 4.1.8 Ensure HTTP Strict Transport Security (HSTS) is enabled (Scored) OK HSTS is enabled by default 4.1.9 Ensure HTTP Public Key Pinning is enabled (Not Scored) ACTION NEEDED / RISK TO BE ACCEPTED HKPK not enabled by default If lets encrypt is not used, set correct HPKP header. There are several ways to implement this - with the helm charts it works via controller.add-headers. If lets encrypt is used, this is complicated, a solution here is yet unknown 4.1.10 Ensure upstream server traffic is authenticated with a client certificate (Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, manual is here 4.1.11 Ensure the upstream traffic server certificate is trusted (Not Scored) DEPENDS ON BACKEND Highly dependend on backends, not every backend allows configuring this, can also be mitigated via a service mesh If backend allows it, see configuration here 4.1.12 Ensure your domain is preloaded (Not Scored) ACTION NEEDED Preload is not active by default Set controller.config.hsts-preload to true 4.1.13 Ensure session resumption is disabled to enable perfect forward security (Scored) ACTION NEEDED Session tickets are enabled by default Set controller.config.ssl-session-tickets to false 4.1.14 Ensure HTTP/2.0 is used (Not Scored) OK http2 is set by default 5 Request Filtering and Restrictions 5.1 Access Control 5.1.1 Ensure allow and deny filters limit access to specific IP addresses (Not Scored) OK/ACTION NEEDED Depends on use case, geo ip module is compiled into nginx ingress controller, there are several ways to use it If needed set IP restrictions via annotations or work with config snippets (be careful with lets-encrypt-http-challenge!) 5.1.2 Ensure only whitelisted HTTP methods are allowed (Not Scored) OK/ACTION NEEDED Depends on use case If required it can be set via config snippet 5.2 Request Limits 5.2.1 Ensure timeout values for reading the client header and body are set correctly (Scored) ACTION NEEDED Default timeout is 60s Set via this configuration parameter and respective body aequivalent 5.2.2 Ensure the maximum request body size is set correctly (Scored) ACTION NEEDED Default is 1m set via this configuration parameter 5.2.3 Ensure the maximum buffer size for URIs is defined (Scored) ACTION NEEDED Default is 4 8k Set via this configuration parameter 5.2.4 Ensure the number of connections per IP address is limited (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.2.5 Ensure rate limits by IP address are set (Not Scored) OK/ACTION NEEDED No limit set Depends on use case, limit can be set via these annotations 5.3 Browser Security 5.3.1 Ensure X-Frame-Options header is configured and enabled (Scored) ACTION NEEDED Header not set by default Several ways to implement this - with the helm charts it works via controller.add-headers 5.3.2 Ensure X-Content-Type-Options header is configured and enabled (Scored) ACTION NEEDED See previous answer See previous answer 5.3.3 Ensure the X-XSS-Protection Header is enabled and configured properly (Scored) ACTION NEEDED See previous answer See previous answer 5.3.4 Ensure that Content Security Policy (CSP) is enabled and configured properly (Not Scored) ACTION NEEDED See previous answer See previous answer 5.3.5 Ensure the Referrer Policy is enabled and configured properly (Not Scored) ACTION NEEDED Depends on application. It should be handled in the applications webserver itself, not in the load balancing ingress check backend webserver 6 Mandatory Access Control n/a too high level, depends on backends @media only screen and (min-width: 768px) { td:nth-child(1){ white-space:normal !important; } .md-typeset table:not([class]) td { padding: .2rem .3rem; } }","title":"Configuration Guide"},{"location":"deploy/rbac/","text":"Role Based Access Control (RBAC) \u00b6 Overview \u00b6 This example applies to nginx-ingress-controllers being deployed in an environment with RBAC enabled. Role Based Access Control is comprised of four layers: ClusterRole - permissions assigned to a role that apply to an entire cluster ClusterRoleBinding - binding a ClusterRole to a specific account Role - permissions assigned to a role that apply to a specific namespace RoleBinding - binding a Role to a specific account In order for RBAC to be applied to an nginx-ingress-controller, that controller should be assigned to a ServiceAccount . That ServiceAccount should be bound to the Role s and ClusterRole s defined for the nginx-ingress-controller. Service Accounts created in this example \u00b6 One ServiceAccount is created in this example, nginx-ingress-serviceaccount . Permissions Granted in this example \u00b6 There are two sets of permissions defined in this example. Cluster-wide permissions defined by the ClusterRole named nginx-ingress-clusterrole , and namespace specific permissions defined by the Role named nginx-ingress-role . Cluster Permissions \u00b6 These permissions are granted in order for the nginx-ingress-controller to be able to function as an ingress across the cluster. These permissions are granted to the ClusterRole named nginx-ingress-clusterrole configmaps , endpoints , nodes , pods , secrets : list, watch nodes : get services , ingresses : get, list, watch events : create, patch ingresses/status : update Namespace Permissions \u00b6 These permissions are granted specific to the nginx-ingress namespace. These permissions are granted to the Role named nginx-ingress-role configmaps , pods , secrets : get endpoints : get Furthermore to support leader-election, the nginx-ingress-controller needs to have access to a configmap using the resourceName ingress-controller-leader-nginx Note that resourceNames can NOT be used to limit requests using the \u201ccreate\u201d verb because authorizers only have access to information that can be obtained from the request URL, method, and headers (resource names in a \u201ccreate\u201d request are part of the request body). configmaps : get, update (for resourceName ingress-controller-leader-nginx ) configmaps : create This resourceName is the concatenation of the election-id and the ingress-class as defined by the ingress-controller, which defaults to: election-id : ingress-controller-leader ingress-class : nginx resourceName : <election-id>-<ingress-class> Please adapt accordingly if you overwrite either parameter when launching the nginx-ingress-controller. Bindings \u00b6 The ServiceAccount nginx-ingress-serviceaccount is bound to the Role nginx-ingress-role and the ClusterRole nginx-ingress-clusterrole . The serviceAccountName associated with the containers in the deployment must match the serviceAccount. The namespace references in the Deployment metadata, container arguments, and POD_NAMESPACE should be in the nginx-ingress namespace.","title":"Role Based Access Control (RBAC)"},{"location":"deploy/rbac/#role-based-access-control-rbac","text":"","title":"Role Based Access Control (RBAC)"},{"location":"deploy/rbac/#overview","text":"This example applies to nginx-ingress-controllers being deployed in an environment with RBAC enabled. Role Based Access Control is comprised of four layers: ClusterRole - permissions assigned to a role that apply to an entire cluster ClusterRoleBinding - binding a ClusterRole to a specific account Role - permissions assigned to a role that apply to a specific namespace RoleBinding - binding a Role to a specific account In order for RBAC to be applied to an nginx-ingress-controller, that controller should be assigned to a ServiceAccount . That ServiceAccount should be bound to the Role s and ClusterRole s defined for the nginx-ingress-controller.","title":"Overview"},{"location":"deploy/rbac/#service-accounts-created-in-this-example","text":"One ServiceAccount is created in this example, nginx-ingress-serviceaccount .","title":"Service Accounts created in this example"},{"location":"deploy/rbac/#permissions-granted-in-this-example","text":"There are two sets of permissions defined in this example. Cluster-wide permissions defined by the ClusterRole named nginx-ingress-clusterrole , and namespace specific permissions defined by the Role named nginx-ingress-role .","title":"Permissions Granted in this example"},{"location":"deploy/rbac/#cluster-permissions","text":"These permissions are granted in order for the nginx-ingress-controller to be able to function as an ingress across the cluster. These permissions are granted to the ClusterRole named nginx-ingress-clusterrole configmaps , endpoints , nodes , pods , secrets : list, watch nodes : get services , ingresses : get, list, watch events : create, patch ingresses/status : update","title":"Cluster Permissions"},{"location":"deploy/rbac/#namespace-permissions","text":"These permissions are granted specific to the nginx-ingress namespace. These permissions are granted to the Role named nginx-ingress-role configmaps , pods , secrets : get endpoints : get Furthermore to support leader-election, the nginx-ingress-controller needs to have access to a configmap using the resourceName ingress-controller-leader-nginx Note that resourceNames can NOT be used to limit requests using the \u201ccreate\u201d verb because authorizers only have access to information that can be obtained from the request URL, method, and headers (resource names in a \u201ccreate\u201d request are part of the request body). configmaps : get, update (for resourceName ingress-controller-leader-nginx ) configmaps : create This resourceName is the concatenation of the election-id and the ingress-class as defined by the ingress-controller, which defaults to: election-id : ingress-controller-leader ingress-class : nginx resourceName : <election-id>-<ingress-class> Please adapt accordingly if you overwrite either parameter when launching the nginx-ingress-controller.","title":"Namespace Permissions"},{"location":"deploy/rbac/#bindings","text":"The ServiceAccount nginx-ingress-serviceaccount is bound to the Role nginx-ingress-role and the ClusterRole nginx-ingress-clusterrole . The serviceAccountName associated with the containers in the deployment must match the serviceAccount. The namespace references in the Deployment metadata, container arguments, and POD_NAMESPACE should be in the nginx-ingress namespace.","title":"Bindings"},{"location":"deploy/upgrade/","text":"Upgrading \u00b6 Important No matter the method you use for upgrading, if you use template overrides, make sure your templates are compatible with the new version of ingress-nginx . Without Helm \u00b6 To upgrade your ingress-nginx installation, it should be enough to change the version of the image in the controller Deployment. I.e. if your deployment resource looks like (partial example): kind : Deployment metadata : name : nginx-ingress-controller namespace : ingress-nginx spec : replicas : 1 selector : ... template : metadata : ... spec : containers : - name : nginx-ingress-controller image : k8s.gcr.io/ingress-nginx/controller:v0.34.0@sha256:56633bd00dab33d92ba14c6e709126a762d54a75a6e72437adefeaaca0abb069 args : ... simply change the 0.34.0 tag to the version you wish to upgrade to. The easiest way to do this is e.g. (do note you may need to change the name parameter according to your installation): kubectl set image deployment/nginx-ingress-controller \\ nginx-ingress-controller=k8s.gcr.io/ingress-nginx/controller:v0.34.1@sha256:0e072dddd1f7f8fc8909a2ca6f65e76c5f0d2fcfb8be47935ae3457e8bbceb20 \\ -n ingress-nginx For interactive editing, use kubectl edit deployment nginx-ingress-controller -n ingress-nginx . With Helm \u00b6 If you installed ingress-nginx using the Helm command in the deployment docs so its name is ngx-ingress , you should be able to upgrade using helm upgrade --reuse-values ngx-ingress ingress-nginx/ingress-nginx Migrating from stable/nginx-ingress \u00b6 See detailed steps in the upgrading section of the ingress-nginx chart README .","title":"Upgrade"},{"location":"deploy/upgrade/#upgrading","text":"Important No matter the method you use for upgrading, if you use template overrides, make sure your templates are compatible with the new version of ingress-nginx .","title":"Upgrading"},{"location":"deploy/upgrade/#without-helm","text":"To upgrade your ingress-nginx installation, it should be enough to change the version of the image in the controller Deployment. I.e. if your deployment resource looks like (partial example): kind : Deployment metadata : name : nginx-ingress-controller namespace : ingress-nginx spec : replicas : 1 selector : ... template : metadata : ... spec : containers : - name : nginx-ingress-controller image : k8s.gcr.io/ingress-nginx/controller:v0.34.0@sha256:56633bd00dab33d92ba14c6e709126a762d54a75a6e72437adefeaaca0abb069 args : ... simply change the 0.34.0 tag to the version you wish to upgrade to. The easiest way to do this is e.g. (do note you may need to change the name parameter according to your installation): kubectl set image deployment/nginx-ingress-controller \\ nginx-ingress-controller=k8s.gcr.io/ingress-nginx/controller:v0.34.1@sha256:0e072dddd1f7f8fc8909a2ca6f65e76c5f0d2fcfb8be47935ae3457e8bbceb20 \\ -n ingress-nginx For interactive editing, use kubectl edit deployment nginx-ingress-controller -n ingress-nginx .","title":"Without Helm"},{"location":"deploy/upgrade/#with-helm","text":"If you installed ingress-nginx using the Helm command in the deployment docs so its name is ngx-ingress , you should be able to upgrade using helm upgrade --reuse-values ngx-ingress ingress-nginx/ingress-nginx","title":"With Helm"},{"location":"deploy/upgrade/#migrating-from-stablenginx-ingress","text":"See detailed steps in the upgrading section of the ingress-nginx chart README .","title":"Migrating from stable/nginx-ingress"},{"location":"enhancements/","text":"Kubernetes Enhancement Proposals (KEPs) \u00b6 A Kubernetes Enhancement Proposal (KEP) is a way to propose, communicate and coordinate on new efforts for the Kubernetes project. For this reason, the ingress-nginx project is adopting it. Quick start for the KEP process \u00b6 Follow the process outlined in the KEP template Do I have to use the KEP process? \u00b6 No... but we hope that you will. Over time having a rich set of KEPs in one place will make it easier for people to track what is going on in the community and find a structured historic record. KEPs are only required when the changes are wide ranging and impact most of the project. Why would I want to use the KEP process? \u00b6 Our aim with KEPs is to clearly communicate new efforts to the Kubernetes contributor community. As such, we want to build a well curated set of clear proposals in a common format with useful metadata. Benefits to KEP users (in the limit): Exposure on a kubernetes blessed web site that is findable via web search engines. Cross indexing of KEPs so that users can find connections and the current status of any KEP. A clear process with approvers and reviewers for making decisions. This will lead to more structured decisions that stick as there is a discoverable record around the decisions. We are inspired by IETF RFCs, Python PEPs, and Rust RFCs.","title":"Kubernetes Enhancement Proposals (KEPs)"},{"location":"enhancements/#kubernetes-enhancement-proposals-keps","text":"A Kubernetes Enhancement Proposal (KEP) is a way to propose, communicate and coordinate on new efforts for the Kubernetes project. For this reason, the ingress-nginx project is adopting it.","title":"Kubernetes Enhancement Proposals (KEPs)"},{"location":"enhancements/#quick-start-for-the-kep-process","text":"Follow the process outlined in the KEP template","title":"Quick start for the KEP process"},{"location":"enhancements/#do-i-have-to-use-the-kep-process","text":"No... but we hope that you will. Over time having a rich set of KEPs in one place will make it easier for people to track what is going on in the community and find a structured historic record. KEPs are only required when the changes are wide ranging and impact most of the project.","title":"Do I have to use the KEP process?"},{"location":"enhancements/#why-would-i-want-to-use-the-kep-process","text":"Our aim with KEPs is to clearly communicate new efforts to the Kubernetes contributor community. As such, we want to build a well curated set of clear proposals in a common format with useful metadata. Benefits to KEP users (in the limit): Exposure on a kubernetes blessed web site that is findable via web search engines. Cross indexing of KEPs so that users can find connections and the current status of any KEP. A clear process with approvers and reviewers for making decisions. This will lead to more structured decisions that stick as there is a discoverable record around the decisions. We are inspired by IETF RFCs, Python PEPs, and Rust RFCs.","title":"Why would I want to use the KEP process?"},{"location":"enhancements/20190724-only-dynamic-ssl/","text":"Remove static SSL configuration mode \u00b6 Table of Contents \u00b6 Summary Motivation Goals Non-Goals Proposal Implementation Details/Notes/Constraints Drawbacks Alternatives Summary \u00b6 Since release 0.19.0 is possible to configure SSL certificates without the need of NGINX reloads (thanks to lua) and after release 0.24.0 the default enabled mode is dynamic. Motivation \u00b6 The static configuration implies reloads, something that affects the majority of the users. Goals \u00b6 Deprecation of the flag --enable-dynamic-certificates . Cleanup of the codebase. Non-Goals \u00b6 Features related to certificate authentication are not changed in any way. Proposal \u00b6 Remove static SSL configuration Implementation Details/Notes/Constraints \u00b6 Deprecate the flag Move the directives ssl_certificate and ssl_certificate_key from each server block to the http section. These settings are required to avoid NGINX errors in the logs. Remove any action of the flag --enable-dynamic-certificates Drawbacks \u00b6 Alternatives \u00b6 Keep both implementations","title":"Remove static SSL configuration mode"},{"location":"enhancements/20190724-only-dynamic-ssl/#remove-static-ssl-configuration-mode","text":"","title":"Remove static SSL configuration mode"},{"location":"enhancements/20190724-only-dynamic-ssl/#table-of-contents","text":"Summary Motivation Goals Non-Goals Proposal Implementation Details/Notes/Constraints Drawbacks Alternatives","title":"Table of Contents"},{"location":"enhancements/20190724-only-dynamic-ssl/#summary","text":"Since release 0.19.0 is possible to configure SSL certificates without the need of NGINX reloads (thanks to lua) and after release 0.24.0 the default enabled mode is dynamic.","title":"Summary"},{"location":"enhancements/20190724-only-dynamic-ssl/#motivation","text":"The static configuration implies reloads, something that affects the majority of the users.","title":"Motivation"},{"location":"enhancements/20190724-only-dynamic-ssl/#goals","text":"Deprecation of the flag --enable-dynamic-certificates . Cleanup of the codebase.","title":"Goals"},{"location":"enhancements/20190724-only-dynamic-ssl/#non-goals","text":"Features related to certificate authentication are not changed in any way.","title":"Non-Goals"},{"location":"enhancements/20190724-only-dynamic-ssl/#proposal","text":"Remove static SSL configuration","title":"Proposal"},{"location":"enhancements/20190724-only-dynamic-ssl/#implementation-detailsnotesconstraints","text":"Deprecate the flag Move the directives ssl_certificate and ssl_certificate_key from each server block to the http section. These settings are required to avoid NGINX errors in the logs. Remove any action of the flag --enable-dynamic-certificates","title":"Implementation Details/Notes/Constraints"},{"location":"enhancements/20190724-only-dynamic-ssl/#drawbacks","text":"","title":"Drawbacks"},{"location":"enhancements/20190724-only-dynamic-ssl/#alternatives","text":"Keep both implementations","title":"Alternatives"},{"location":"enhancements/20190815-zone-aware-routing/","text":"Availability zone aware routing \u00b6 Table of Contents \u00b6 Summary Motivation Goals Non-Goals Proposal Implementation History Drawbacks [optional] Summary \u00b6 Teach ingress-nginx about availability zones where endpoints are running in. This way ingress-nginx pod will do its best to proxy to zone-local endpoint. Motivation \u00b6 When users run their services across multiple availability zones they usually pay for egress traffic between zones. Providers such as GCP, Amazon EC charges money for that. ingress-nginx when picking an endpoint to route request to does not consider whether the endpoint is in different zone or the same one. That means it's at least equally likely that it will pick an endpoint from another zone and proxy the request to it. In this situation response from the endpoint to ingress-nginx pod is considered as inter zone traffic and costs money. At the time of this writing GCP charges $0.01 per GB of inter zone egress traffic according to https://cloud.google.com/compute/network-pricing. According to https://datapath.io/resources/blog/what-are-aws-data-transfer-costs-and-how-to-minimize-them/ Amazon also charges the same amount of money sa GCP for cross zone, egress traffic. This can be a lot of money depending on once's traffic. By teaching ingress-nginx about zones we can eliminate or at least decrease this cost. Arguably inter-zone network latency should also be better than cross zone. Goals \u00b6 Given a regional cluster running ingress-nginx, ingress-nginx should do best effort to pick zone-local endpoint when proxying This should not impact canary feature ingress-nginx should be able to operate successfully if there's no zonal endpoints Non-Goals \u00b6 This feature inherently assumes that endpoints are distributed across zones in a way that they can handle all the traffic from ingress-nginx pod(s) in that zone This feature will be relying on https://kubernetes.io/docs/reference/kubernetes-api/labels-annotations-taints/#failure-domainbetakubernetesiozone, it is not this KEP's goal to support other cases Proposal \u00b6 The idea here is to have controller part of ingress-nginx to (1) detect what zone its current pod is running in and (2) detect the zone for every endpoints it knows about. After that it will post that data as part of endpoints to Lua land. Then Lua balancer when picking an endpoint will try to pick zone-local endpoint first and if there is no zone-local endpoint then it will fallback to current behaviour. This feature at least in the beginning should be optional since it is going to make it harder to reason about the load balancing and not everyone might want that. How does controller know what zone it runs in? We can have the pod spec do pass node name using downward API as an environment variable. Then on start controller can get node details from the API based on node name. Once the node details is obtained we can extract the zone from failure-domain.beta.kubernetes.io/zone annotation. Then we can pass that value to Lua land through Nginx configuration when loading lua_ingress.lua module in init_by_lua phase. How do we extract zones for endpoints? We can have the controller watch create and update events on nodes in the entire cluster and based on that keep the map of nodes to zones in the memory. And when we generate endpoints list, we can access node name using .subsets.addresses[i].nodeName and based on that fetch zone from the map in memory and store it as a field on the endpoint. This solution assumes failure-domain.beta.kubernetes.io/zone annotation does not change until the end of node's life. Otherwise we have to watch update events as well on the nodes and that'll add even more overhead. Alternatively, we can get the list of nodes only when there's no node in the memory for given node name. This is probably a better solution because then we would avoid watching for API changes on node resources. We can eagrly fetch all the nodes and build node name to zone mapping on start. And from thereon sync it during endpoints building in the main event loop iff there's no entry exist for the node of an endpoint. This means an extra API call in case cluster has expanded. How do we make sure we do our best to choose zone-local endpoint? This will be done on Lua side. For every backend we will initialize two balancer instances: (1) with all endpoints (2) with all endpoints corresponding to current zone for the backend. Then given the request once we choose what backend needs to serve the request, we will first try to use zonal balancer for that backend. If zonal balancer does not exist (i.e there's no zonal endpoint) then we will use general balancer. In case of zonal outages we assume that readiness probe will fail and controller will see no endpoints for the backend and therefore we will use general balancer. We can enable the feature using a configmap setting. Doing it this way makes it easier to rollback in case of a problem. Implementation History \u00b6 initial version of KEP is shipped proposal and implementation details is done Drawbacks [optional] \u00b6 More load on the Kubernetes API server.","title":"Availability zone aware routing"},{"location":"enhancements/20190815-zone-aware-routing/#availability-zone-aware-routing","text":"","title":"Availability zone aware routing"},{"location":"enhancements/20190815-zone-aware-routing/#table-of-contents","text":"Summary Motivation Goals Non-Goals Proposal Implementation History Drawbacks [optional]","title":"Table of Contents"},{"location":"enhancements/20190815-zone-aware-routing/#summary","text":"Teach ingress-nginx about availability zones where endpoints are running in. This way ingress-nginx pod will do its best to proxy to zone-local endpoint.","title":"Summary"},{"location":"enhancements/20190815-zone-aware-routing/#motivation","text":"When users run their services across multiple availability zones they usually pay for egress traffic between zones. Providers such as GCP, Amazon EC charges money for that. ingress-nginx when picking an endpoint to route request to does not consider whether the endpoint is in different zone or the same one. That means it's at least equally likely that it will pick an endpoint from another zone and proxy the request to it. In this situation response from the endpoint to ingress-nginx pod is considered as inter zone traffic and costs money. At the time of this writing GCP charges $0.01 per GB of inter zone egress traffic according to https://cloud.google.com/compute/network-pricing. According to https://datapath.io/resources/blog/what-are-aws-data-transfer-costs-and-how-to-minimize-them/ Amazon also charges the same amount of money sa GCP for cross zone, egress traffic. This can be a lot of money depending on once's traffic. By teaching ingress-nginx about zones we can eliminate or at least decrease this cost. Arguably inter-zone network latency should also be better than cross zone.","title":"Motivation"},{"location":"enhancements/20190815-zone-aware-routing/#goals","text":"Given a regional cluster running ingress-nginx, ingress-nginx should do best effort to pick zone-local endpoint when proxying This should not impact canary feature ingress-nginx should be able to operate successfully if there's no zonal endpoints","title":"Goals"},{"location":"enhancements/20190815-zone-aware-routing/#non-goals","text":"This feature inherently assumes that endpoints are distributed across zones in a way that they can handle all the traffic from ingress-nginx pod(s) in that zone This feature will be relying on https://kubernetes.io/docs/reference/kubernetes-api/labels-annotations-taints/#failure-domainbetakubernetesiozone, it is not this KEP's goal to support other cases","title":"Non-Goals"},{"location":"enhancements/20190815-zone-aware-routing/#proposal","text":"The idea here is to have controller part of ingress-nginx to (1) detect what zone its current pod is running in and (2) detect the zone for every endpoints it knows about. After that it will post that data as part of endpoints to Lua land. Then Lua balancer when picking an endpoint will try to pick zone-local endpoint first and if there is no zone-local endpoint then it will fallback to current behaviour. This feature at least in the beginning should be optional since it is going to make it harder to reason about the load balancing and not everyone might want that. How does controller know what zone it runs in? We can have the pod spec do pass node name using downward API as an environment variable. Then on start controller can get node details from the API based on node name. Once the node details is obtained we can extract the zone from failure-domain.beta.kubernetes.io/zone annotation. Then we can pass that value to Lua land through Nginx configuration when loading lua_ingress.lua module in init_by_lua phase. How do we extract zones for endpoints? We can have the controller watch create and update events on nodes in the entire cluster and based on that keep the map of nodes to zones in the memory. And when we generate endpoints list, we can access node name using .subsets.addresses[i].nodeName and based on that fetch zone from the map in memory and store it as a field on the endpoint. This solution assumes failure-domain.beta.kubernetes.io/zone annotation does not change until the end of node's life. Otherwise we have to watch update events as well on the nodes and that'll add even more overhead. Alternatively, we can get the list of nodes only when there's no node in the memory for given node name. This is probably a better solution because then we would avoid watching for API changes on node resources. We can eagrly fetch all the nodes and build node name to zone mapping on start. And from thereon sync it during endpoints building in the main event loop iff there's no entry exist for the node of an endpoint. This means an extra API call in case cluster has expanded. How do we make sure we do our best to choose zone-local endpoint? This will be done on Lua side. For every backend we will initialize two balancer instances: (1) with all endpoints (2) with all endpoints corresponding to current zone for the backend. Then given the request once we choose what backend needs to serve the request, we will first try to use zonal balancer for that backend. If zonal balancer does not exist (i.e there's no zonal endpoint) then we will use general balancer. In case of zonal outages we assume that readiness probe will fail and controller will see no endpoints for the backend and therefore we will use general balancer. We can enable the feature using a configmap setting. Doing it this way makes it easier to rollback in case of a problem.","title":"Proposal"},{"location":"enhancements/20190815-zone-aware-routing/#implementation-history","text":"initial version of KEP is shipped proposal and implementation details is done","title":"Implementation History"},{"location":"enhancements/20190815-zone-aware-routing/#drawbacks-optional","text":"More load on the Kubernetes API server.","title":"Drawbacks [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/","text":"Title \u00b6 This is the title of the KEP. Keep it simple and descriptive. A good title can help communicate what the KEP is and should be considered as part of any review. The title should be lowercased and spaces/punctuation should be replaced with - . To get started with this template: Make a copy of this template. Create a copy of this template and name it YYYYMMDD-my-title.md , where YYYYMMDD is the date the KEP was first drafted. Fill out the \"overview\" sections. This includes the Summary and Motivation sections. These should be easy if you've preflighted the idea of the KEP in an issue. Create a PR. Assign it to folks that are sponsoring this process. Create an issue When filing an enhancement tracking issue, please ensure to complete all fields in the template. Merge early. Avoid getting hung up on specific details and instead aim to get the goal of the KEP merged quickly. The best way to do this is to just start with the \"Overview\" sections and fill out details incrementally in follow on PRs. View anything marked as a provisional as a working document and subject to change. Aim for single topic PRs to keep discussions focused. If you disagree with what is already in a document, open a new PR with suggested changes. The canonical place for the latest set of instructions (and the likely source of this file) is here . The Metadata section above is intended to support the creation of tooling around the KEP process. This will be a YAML section that is fenced as a code block. See the KEP process for details on each of these items. Table of Contents \u00b6 A table of contents is helpful for quickly jumping to sections of a KEP and for highlighting any additional information provided beyond the standard KEP template. Ensure the TOC is wrapped with <!-- toc --&rt;<!-- /toc --&rt; tags, and then generate with hack/update-toc.sh . Summary Motivation Goals Non-Goals Proposal User Stories [optional] Story 1 Story 2 Implementation Details/Notes/Constraints [optional] Risks and Mitigations Design Details Test Plan Removing a deprecated flag Implementation History Drawbacks [optional] Alternatives [optional] Summary \u00b6 The Summary section is incredibly important for producing high quality user-focused documentation such as release notes or a development roadmap. It should be possible to collect this information before implementation begins in order to avoid requiring implementors to split their attention between writing release notes and implementing the feature itself. A good summary is probably at least a paragraph in length. Motivation \u00b6 This section is for explicitly listing the motivation, goals and non-goals of this KEP. Describe why the change is important and the benefits to users. The motivation section can optionally provide links to experience reports to demonstrate the interest in a KEP within the wider Kubernetes community. Goals \u00b6 List the specific goals of the KEP. How will we know that this has succeeded? Non-Goals \u00b6 What is out of scope for this KEP? Listing non-goals helps to focus discussion and make progress. Proposal \u00b6 This is where we get down to the nitty gritty of what the proposal actually is. User Stories [optional] \u00b6 Detail the things that people will be able to do if this KEP is implemented. Include as much detail as possible so that people can understand the \"how\" of the system. The goal here is to make this feel real for users without getting bogged down. Story 1 \u00b6 Story 2 \u00b6 Implementation Details/Notes/Constraints [optional] \u00b6 What are the caveats to the implementation? What are some important details that didn't come across above. Go in to as much detail as necessary here. This might be a good place to talk about core concepts and how they releate. Risks and Mitigations \u00b6 What are the risks of this proposal and how do we mitigate. Think broadly. For example, consider both security and how this will impact the larger kubernetes ecosystem. How will security be reviewed and by whom? How will UX be reviewed and by whom? Consider including folks that also work outside project. Design Details \u00b6 Test Plan \u00b6 Note: Section not required until targeted at a release. Consider the following in developing a test plan for this enhancement: Will there be e2e and integration tests, in addition to unit tests? How will it be tested in isolation vs with other components? No need to outline all of the test cases, just the general strategy. Anything that would count as tricky in the implementation and anything particularly challenging to test should be called out. All code is expected to have adequate tests (eventually with coverage expectations). Please adhere to the Kubernetes testing guidelines when drafting this test plan. Removing a deprecated flag \u00b6 Announce deprecation and support policy of the existing flag Two versions passed since introducing the functionality which deprecates the flag (to address version skew) Address feedback on usage/changed behavior, provided on GitHub issues Deprecate the flag Implementation History \u00b6 Major milestones in the life cycle of a KEP should be tracked in Implementation History . Major milestones might include the Summary and Motivation sections being merged signaling acceptance the Proposal section being merged signaling agreement on a proposed design the date implementation started the first Kubernetes release where an initial version of the KEP was available the version of Kubernetes where the KEP graduated to general availability when the KEP was retired or superseded Drawbacks [optional] \u00b6 Why should this KEP not be implemented. Alternatives [optional] \u00b6 Similar to the Drawbacks section the Alternatives section is used to highlight and record other possible approaches to delivering the value proposed by a KEP.","title":"KEP Template"},{"location":"enhancements/YYYYMMDD-kep-template/#title","text":"This is the title of the KEP. Keep it simple and descriptive. A good title can help communicate what the KEP is and should be considered as part of any review. The title should be lowercased and spaces/punctuation should be replaced with - . To get started with this template: Make a copy of this template. Create a copy of this template and name it YYYYMMDD-my-title.md , where YYYYMMDD is the date the KEP was first drafted. Fill out the \"overview\" sections. This includes the Summary and Motivation sections. These should be easy if you've preflighted the idea of the KEP in an issue. Create a PR. Assign it to folks that are sponsoring this process. Create an issue When filing an enhancement tracking issue, please ensure to complete all fields in the template. Merge early. Avoid getting hung up on specific details and instead aim to get the goal of the KEP merged quickly. The best way to do this is to just start with the \"Overview\" sections and fill out details incrementally in follow on PRs. View anything marked as a provisional as a working document and subject to change. Aim for single topic PRs to keep discussions focused. If you disagree with what is already in a document, open a new PR with suggested changes. The canonical place for the latest set of instructions (and the likely source of this file) is here . The Metadata section above is intended to support the creation of tooling around the KEP process. This will be a YAML section that is fenced as a code block. See the KEP process for details on each of these items.","title":"Title"},{"location":"enhancements/YYYYMMDD-kep-template/#table-of-contents","text":"A table of contents is helpful for quickly jumping to sections of a KEP and for highlighting any additional information provided beyond the standard KEP template. Ensure the TOC is wrapped with <!-- toc --&rt;<!-- /toc --&rt; tags, and then generate with hack/update-toc.sh . Summary Motivation Goals Non-Goals Proposal User Stories [optional] Story 1 Story 2 Implementation Details/Notes/Constraints [optional] Risks and Mitigations Design Details Test Plan Removing a deprecated flag Implementation History Drawbacks [optional] Alternatives [optional]","title":"Table of Contents"},{"location":"enhancements/YYYYMMDD-kep-template/#summary","text":"The Summary section is incredibly important for producing high quality user-focused documentation such as release notes or a development roadmap. It should be possible to collect this information before implementation begins in order to avoid requiring implementors to split their attention between writing release notes and implementing the feature itself. A good summary is probably at least a paragraph in length.","title":"Summary"},{"location":"enhancements/YYYYMMDD-kep-template/#motivation","text":"This section is for explicitly listing the motivation, goals and non-goals of this KEP. Describe why the change is important and the benefits to users. The motivation section can optionally provide links to experience reports to demonstrate the interest in a KEP within the wider Kubernetes community.","title":"Motivation"},{"location":"enhancements/YYYYMMDD-kep-template/#goals","text":"List the specific goals of the KEP. How will we know that this has succeeded?","title":"Goals"},{"location":"enhancements/YYYYMMDD-kep-template/#non-goals","text":"What is out of scope for this KEP? Listing non-goals helps to focus discussion and make progress.","title":"Non-Goals"},{"location":"enhancements/YYYYMMDD-kep-template/#proposal","text":"This is where we get down to the nitty gritty of what the proposal actually is.","title":"Proposal"},{"location":"enhancements/YYYYMMDD-kep-template/#user-stories-optional","text":"Detail the things that people will be able to do if this KEP is implemented. Include as much detail as possible so that people can understand the \"how\" of the system. The goal here is to make this feel real for users without getting bogged down.","title":"User Stories [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#story-1","text":"","title":"Story 1"},{"location":"enhancements/YYYYMMDD-kep-template/#story-2","text":"","title":"Story 2"},{"location":"enhancements/YYYYMMDD-kep-template/#implementation-detailsnotesconstraints-optional","text":"What are the caveats to the implementation? What are some important details that didn't come across above. Go in to as much detail as necessary here. This might be a good place to talk about core concepts and how they releate.","title":"Implementation Details/Notes/Constraints [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#risks-and-mitigations","text":"What are the risks of this proposal and how do we mitigate. Think broadly. For example, consider both security and how this will impact the larger kubernetes ecosystem. How will security be reviewed and by whom? How will UX be reviewed and by whom? Consider including folks that also work outside project.","title":"Risks and Mitigations"},{"location":"enhancements/YYYYMMDD-kep-template/#design-details","text":"","title":"Design Details"},{"location":"enhancements/YYYYMMDD-kep-template/#test-plan","text":"Note: Section not required until targeted at a release. Consider the following in developing a test plan for this enhancement: Will there be e2e and integration tests, in addition to unit tests? How will it be tested in isolation vs with other components? No need to outline all of the test cases, just the general strategy. Anything that would count as tricky in the implementation and anything particularly challenging to test should be called out. All code is expected to have adequate tests (eventually with coverage expectations). Please adhere to the Kubernetes testing guidelines when drafting this test plan.","title":"Test Plan"},{"location":"enhancements/YYYYMMDD-kep-template/#removing-a-deprecated-flag","text":"Announce deprecation and support policy of the existing flag Two versions passed since introducing the functionality which deprecates the flag (to address version skew) Address feedback on usage/changed behavior, provided on GitHub issues Deprecate the flag","title":"Removing a deprecated flag"},{"location":"enhancements/YYYYMMDD-kep-template/#implementation-history","text":"Major milestones in the life cycle of a KEP should be tracked in Implementation History . Major milestones might include the Summary and Motivation sections being merged signaling acceptance the Proposal section being merged signaling agreement on a proposed design the date implementation started the first Kubernetes release where an initial version of the KEP was available the version of Kubernetes where the KEP graduated to general availability when the KEP was retired or superseded","title":"Implementation History"},{"location":"enhancements/YYYYMMDD-kep-template/#drawbacks-optional","text":"Why should this KEP not be implemented.","title":"Drawbacks [optional]"},{"location":"enhancements/YYYYMMDD-kep-template/#alternatives-optional","text":"Similar to the Drawbacks section the Alternatives section is used to highlight and record other possible approaches to delivering the value proposed by a KEP.","title":"Alternatives [optional]"},{"location":"examples/","text":"Ingress examples \u00b6 This directory contains a catalog of examples on how to run, configure and scale Ingress. Please review the prerequisites before trying them. Category Name Description Complexity Level Apps Docker Registry TODO TODO Auth Basic authentication password protect your website Intermediate Auth Client certificate authentication secure your website with client certificate authentication Intermediate Auth External authentication plugin defer to an external authentication service Intermediate Auth OAuth external auth TODO TODO Customization Configuration snippets customize nginx location configuration using annotations Advanced Customization Custom configuration TODO TODO Customization Custom DH parameters for perfect forward secrecy TODO TODO Customization Custom errors serve custom error pages from the default backend Intermediate Customization Custom headers set custom headers before sending traffic to backends Advanced Customization External authentication with response header propagation TODO TODO Customization Sysctl tuning TODO TODO Features Rewrite TODO TODO Features Session stickiness route requests consistently to the same endpoint Advanced Scaling Static IP a single ingress gets a single static IP Intermediate TLS Multi TLS certificate termination TODO TODO TLS TLS termination TODO TODO","title":"Introduction"},{"location":"examples/#ingress-examples","text":"This directory contains a catalog of examples on how to run, configure and scale Ingress. Please review the prerequisites before trying them. Category Name Description Complexity Level Apps Docker Registry TODO TODO Auth Basic authentication password protect your website Intermediate Auth Client certificate authentication secure your website with client certificate authentication Intermediate Auth External authentication plugin defer to an external authentication service Intermediate Auth OAuth external auth TODO TODO Customization Configuration snippets customize nginx location configuration using annotations Advanced Customization Custom configuration TODO TODO Customization Custom DH parameters for perfect forward secrecy TODO TODO Customization Custom errors serve custom error pages from the default backend Intermediate Customization Custom headers set custom headers before sending traffic to backends Advanced Customization External authentication with response header propagation TODO TODO Customization Sysctl tuning TODO TODO Features Rewrite TODO TODO Features Session stickiness route requests consistently to the same endpoint Advanced Scaling Static IP a single ingress gets a single static IP Intermediate TLS Multi TLS certificate termination TODO TODO TLS TLS termination TODO TODO","title":"Ingress examples"},{"location":"examples/PREREQUISITES/","text":"Prerequisites \u00b6 Many of the examples in this directory have common prerequisites. TLS certificates \u00b6 Unless otherwise mentioned, the TLS secret used in examples is a 2048 bit RSA key/cert pair with an arbitrarily chosen hostname, created as follows $ openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj \"/CN=nginxsvc/O=nginxsvc\" Generating a 2048 bit RSA private key ................+++ ................+++ writing new private key to 'tls.key' ----- $ kubectl create secret tls tls-secret --key tls.key --cert tls.crt secret \"tls-secret\" created Note: If using CA Authentication, described below, you will need to sign the server certificate with the CA. Client Certificate Authentication \u00b6 CA Authentication also known as Mutual Authentication allows both the server and client to verify each others identity via a common CA. We have a CA Certificate which we obtain usually from a Certificate Authority and use that to sign both our server certificate and client certificate. Then every time we want to access our backend, we must pass the client certificate. These instructions are based on the following blog Generate the CA Key and Certificate: openssl req -x509 -sha256 -newkey rsa:4096 -keyout ca.key -out ca.crt -days 356 -nodes -subj '/CN=My Cert Authority' Generate the Server Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout server.key -out server.csr -nodes -subj '/CN=mydomain.com' openssl x509 -req -sha256 -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out server.crt Generate the Client Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout client.key -out client.csr -nodes -subj '/CN=My Client' openssl x509 -req -sha256 -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 02 -out client.crt Once this is complete you can continue to follow the instructions here Test HTTP Service \u00b6 All examples that require a test HTTP Service use the standard http-svc pod, which you can deploy as follows $ kubectl create -f http-svc.yaml service \"http-svc\" created replicationcontroller \"http-svc\" created $ kubectl get po NAME READY STATUS RESTARTS AGE http-svc-p1t3t 1/1 Running 0 1d $ kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d You can test that the HTTP Service works by exposing it temporarily $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"LoadBalancer\"}}' \"http-svc\" patched $ kubectl get svc http-svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d $ kubectl describe svc http-svc Name: http-svc Namespace: default Labels: app=http-svc Selector: app=http-svc Type: LoadBalancer IP: 10.0.122.116 LoadBalancer Ingress: 108.59.87.136 Port: http 80/TCP NodePort: http 30301/TCP Endpoints: 10.180.1.6:8080 Session Affinity: None Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 1m 1m 1 {service-controller } Normal Type ClusterIP -> LoadBalancer 1m 1m 1 {service-controller } Normal CreatingLoadBalancer Creating load balancer 16s 16s 1 {service-controller } Normal CreatedLoadBalancer Created load balancer $ curl 108 .59.87.136 CLIENT VALUES: client_address=10.240.0.3 command=GET real path=/ query=nil request_version=1.1 request_uri=http://108.59.87.136:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* host=108.59.87.136 user-agent=curl/7.46.0 BODY: -no body in request- $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"NodePort\"}}' \"http-svc\" patched","title":"Prerequisites"},{"location":"examples/PREREQUISITES/#prerequisites","text":"Many of the examples in this directory have common prerequisites.","title":"Prerequisites"},{"location":"examples/PREREQUISITES/#tls-certificates","text":"Unless otherwise mentioned, the TLS secret used in examples is a 2048 bit RSA key/cert pair with an arbitrarily chosen hostname, created as follows $ openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj \"/CN=nginxsvc/O=nginxsvc\" Generating a 2048 bit RSA private key ................+++ ................+++ writing new private key to 'tls.key' ----- $ kubectl create secret tls tls-secret --key tls.key --cert tls.crt secret \"tls-secret\" created Note: If using CA Authentication, described below, you will need to sign the server certificate with the CA.","title":"TLS certificates"},{"location":"examples/PREREQUISITES/#client-certificate-authentication","text":"CA Authentication also known as Mutual Authentication allows both the server and client to verify each others identity via a common CA. We have a CA Certificate which we obtain usually from a Certificate Authority and use that to sign both our server certificate and client certificate. Then every time we want to access our backend, we must pass the client certificate. These instructions are based on the following blog Generate the CA Key and Certificate: openssl req -x509 -sha256 -newkey rsa:4096 -keyout ca.key -out ca.crt -days 356 -nodes -subj '/CN=My Cert Authority' Generate the Server Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout server.key -out server.csr -nodes -subj '/CN=mydomain.com' openssl x509 -req -sha256 -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out server.crt Generate the Client Key, and Certificate and Sign with the CA Certificate: openssl req -new -newkey rsa:4096 -keyout client.key -out client.csr -nodes -subj '/CN=My Client' openssl x509 -req -sha256 -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 02 -out client.crt Once this is complete you can continue to follow the instructions here","title":"Client Certificate Authentication"},{"location":"examples/PREREQUISITES/#test-http-service","text":"All examples that require a test HTTP Service use the standard http-svc pod, which you can deploy as follows $ kubectl create -f http-svc.yaml service \"http-svc\" created replicationcontroller \"http-svc\" created $ kubectl get po NAME READY STATUS RESTARTS AGE http-svc-p1t3t 1/1 Running 0 1d $ kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d You can test that the HTTP Service works by exposing it temporarily $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"LoadBalancer\"}}' \"http-svc\" patched $ kubectl get svc http-svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE http-svc 10.0.122.116 <pending> 80:30301/TCP 1d $ kubectl describe svc http-svc Name: http-svc Namespace: default Labels: app=http-svc Selector: app=http-svc Type: LoadBalancer IP: 10.0.122.116 LoadBalancer Ingress: 108.59.87.136 Port: http 80/TCP NodePort: http 30301/TCP Endpoints: 10.180.1.6:8080 Session Affinity: None Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 1m 1m 1 {service-controller } Normal Type ClusterIP -> LoadBalancer 1m 1m 1 {service-controller } Normal CreatingLoadBalancer Creating load balancer 16s 16s 1 {service-controller } Normal CreatedLoadBalancer Created load balancer $ curl 108 .59.87.136 CLIENT VALUES: client_address=10.240.0.3 command=GET real path=/ query=nil request_version=1.1 request_uri=http://108.59.87.136:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* host=108.59.87.136 user-agent=curl/7.46.0 BODY: -no body in request- $ kubectl patch svc http-svc -p '{\"spec\":{\"type\": \"NodePort\"}}' \"http-svc\" patched","title":"Test HTTP Service"},{"location":"examples/affinity/cookie/","text":"Sticky sessions \u00b6 This example demonstrates how to achieve session affinity using cookies. Deployment \u00b6 Session affinity can be configured using the following annotations: Name Description Value nginx.ingress.kubernetes.io/affinity Type of the affinity, set this to cookie to enable session affinity string (NGINX only supports cookie ) nginx.ingress.kubernetes.io/affinity-mode The affinity mode defines how sticky a session is. Use balanced to redistribute some sessions when scaling pods or persistent for maximum stickyness. balanced (default) or persistent nginx.ingress.kubernetes.io/session-cookie-name Name of the cookie that will be created string (defaults to INGRESSCOOKIE ) nginx.ingress.kubernetes.io/session-cookie-path Path that will be set on the cookie (required if your Ingress paths use regular expressions) string (defaults to the currently matched path ) nginx.ingress.kubernetes.io/session-cookie-samesite SameSite attribute to apply to the cookie Browser accepted values are None , Lax , and Strict nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none Will omit SameSite=None attribute for older browsers which reject the more-recently defined SameSite=None value \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-max-age Time until the cookie expires, corresponds to the Max-Age cookie directive number of seconds nginx.ingress.kubernetes.io/session-cookie-expires Legacy version of the previous annotation for compatibility with older browsers, generates an Expires cookie directive by adding the seconds to the current date number of seconds nginx.ingress.kubernetes.io/session-cookie-change-on-failure When set to false nginx ingress will send request to upstream pointed by sticky cookie even if previous attempt failed. When set to true and previous attempt failed, sticky cookie will be changed to point to another upstream. true or false (defaults to false ) You can create the example Ingress to test this: kubectl create -f ingress.yaml Validation \u00b6 You can confirm that the Ingress works: $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) Rules: Host Path Backends ---- ---- -------- stickyingress.example.com / nginx-service:80 (<none>) Annotations: affinity: cookie session-cookie-name: INGRESSCOOKIE session-cookie-expires: 172800 session-cookie-max-age: 172800 Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test $ curl -I http://stickyingress.example.com HTTP/1.1 200 OK Server: nginx/1.11.9 Date: Fri, 10 Feb 2017 14:11:12 GMT Content-Type: text/html Content-Length: 612 Connection: keep-alive Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Expires=Sun, 12-Feb-17 14:11:12 GMT; Max-Age=172800; Path=/; HttpOnly Last-Modified: Tue, 24 Jan 2017 14:02:19 GMT ETag: \"58875e6b-264\" Accept-Ranges: bytes In the example above, you can see that the response contains a Set-Cookie header with the settings we have defined. This cookie is created by NGINX, it contains a randomly generated key corresponding to the upstream used for that request (selected using consistent hashing ) and has an Expires directive. If the user changes this cookie, NGINX creates a new one and redirects the user to another upstream. If the backend pool grows NGINX will keep sending the requests through the same server of the first request, even if it's overloaded. When the backend server is removed, the requests are re-routed to another upstream server. This does not require the cookie to be updated because the key's consistent hash will change. When you have a Service pointing to more than one Ingress, with only one containing affinity configuration, the first created Ingress will be used. This means that you can face the situation that you've configured session affinity on one Ingress and it doesn't work because the Service is pointing to another Ingress that doesn't configure this.","title":"Sticky Sessions"},{"location":"examples/affinity/cookie/#sticky-sessions","text":"This example demonstrates how to achieve session affinity using cookies.","title":"Sticky sessions"},{"location":"examples/affinity/cookie/#deployment","text":"Session affinity can be configured using the following annotations: Name Description Value nginx.ingress.kubernetes.io/affinity Type of the affinity, set this to cookie to enable session affinity string (NGINX only supports cookie ) nginx.ingress.kubernetes.io/affinity-mode The affinity mode defines how sticky a session is. Use balanced to redistribute some sessions when scaling pods or persistent for maximum stickyness. balanced (default) or persistent nginx.ingress.kubernetes.io/session-cookie-name Name of the cookie that will be created string (defaults to INGRESSCOOKIE ) nginx.ingress.kubernetes.io/session-cookie-path Path that will be set on the cookie (required if your Ingress paths use regular expressions) string (defaults to the currently matched path ) nginx.ingress.kubernetes.io/session-cookie-samesite SameSite attribute to apply to the cookie Browser accepted values are None , Lax , and Strict nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none Will omit SameSite=None attribute for older browsers which reject the more-recently defined SameSite=None value \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-max-age Time until the cookie expires, corresponds to the Max-Age cookie directive number of seconds nginx.ingress.kubernetes.io/session-cookie-expires Legacy version of the previous annotation for compatibility with older browsers, generates an Expires cookie directive by adding the seconds to the current date number of seconds nginx.ingress.kubernetes.io/session-cookie-change-on-failure When set to false nginx ingress will send request to upstream pointed by sticky cookie even if previous attempt failed. When set to true and previous attempt failed, sticky cookie will be changed to point to another upstream. true or false (defaults to false ) You can create the example Ingress to test this: kubectl create -f ingress.yaml","title":"Deployment"},{"location":"examples/affinity/cookie/#validation","text":"You can confirm that the Ingress works: $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) Rules: Host Path Backends ---- ---- -------- stickyingress.example.com / nginx-service:80 (<none>) Annotations: affinity: cookie session-cookie-name: INGRESSCOOKIE session-cookie-expires: 172800 session-cookie-max-age: 172800 Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test $ curl -I http://stickyingress.example.com HTTP/1.1 200 OK Server: nginx/1.11.9 Date: Fri, 10 Feb 2017 14:11:12 GMT Content-Type: text/html Content-Length: 612 Connection: keep-alive Set-Cookie: INGRESSCOOKIE=a9907b79b248140b56bb13723f72b67697baac3d; Expires=Sun, 12-Feb-17 14:11:12 GMT; Max-Age=172800; Path=/; HttpOnly Last-Modified: Tue, 24 Jan 2017 14:02:19 GMT ETag: \"58875e6b-264\" Accept-Ranges: bytes In the example above, you can see that the response contains a Set-Cookie header with the settings we have defined. This cookie is created by NGINX, it contains a randomly generated key corresponding to the upstream used for that request (selected using consistent hashing ) and has an Expires directive. If the user changes this cookie, NGINX creates a new one and redirects the user to another upstream. If the backend pool grows NGINX will keep sending the requests through the same server of the first request, even if it's overloaded. When the backend server is removed, the requests are re-routed to another upstream server. This does not require the cookie to be updated because the key's consistent hash will change. When you have a Service pointing to more than one Ingress, with only one containing affinity configuration, the first created Ingress will be used. This means that you can face the situation that you've configured session affinity on one Ingress and it doesn't work because the Service is pointing to another Ingress that doesn't configure this.","title":"Validation"},{"location":"examples/auth/basic/","text":"Basic Authentication \u00b6 This example shows how to add authentication in a Ingress rule using a secret that contains a file generated with htpasswd . It's important the file generated is named auth (actually - that the secret has a key data.auth ), otherwise the ingress-controller returns a 503. $ htpasswd -c auth foo New password: <bar> New password: Re-type new password: Adding password for user foo $ kubectl create secret generic basic-auth --from-file = auth secret \"basic-auth\" created $ kubectl get secret basic-auth -o yaml apiVersion: v1 data: auth: Zm9vOiRhcHIxJE9GRzNYeWJwJGNrTDBGSERBa29YWUlsSDkuY3lzVDAK kind: Secret metadata: name: basic-auth namespace: default type: Opaque echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-with-auth annotations: # type of authentication nginx.ingress.kubernetes.io/auth-type: basic # name of the secret that contains the user/password definitions nginx.ingress.kubernetes.io/auth-secret: basic-auth # message to display with an appropriate context why the authentication is required nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo' spec: rules: - host: foo.bar.com http: paths: - path: / backend: serviceName: http-svc servicePort: 80 \" | kubectl create -f - $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) > GET / HTTP/1.1 > Host: foo.bar.com > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 05:27:23 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Authentication Required - foo\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.10.0</center> </body> </html> * Connection #0 to host 10.2.29.4 left intact $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' -u 'foo:bar' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) * Server auth using Basic with user 'foo' > GET / HTTP/1.1 > Host: foo.bar.com > Authorization: Basic Zm9vOmJhcg== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 06:05:26 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < Vary: Accept-Encoding < CLIENT VALUES: client_address=10.2.29.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic Zm9vOmJhcg== connection=close host=foo.bar.com user-agent=curl/7.43.0 x-forwarded-for=10.2.29.1 x-forwarded-host=foo.bar.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.29.1 BODY: * Connection #0 to host 10.2.29.4 left intact -no body in request-","title":"Basic Authentication"},{"location":"examples/auth/basic/#basic-authentication","text":"This example shows how to add authentication in a Ingress rule using a secret that contains a file generated with htpasswd . It's important the file generated is named auth (actually - that the secret has a key data.auth ), otherwise the ingress-controller returns a 503. $ htpasswd -c auth foo New password: <bar> New password: Re-type new password: Adding password for user foo $ kubectl create secret generic basic-auth --from-file = auth secret \"basic-auth\" created $ kubectl get secret basic-auth -o yaml apiVersion: v1 data: auth: Zm9vOiRhcHIxJE9GRzNYeWJwJGNrTDBGSERBa29YWUlsSDkuY3lzVDAK kind: Secret metadata: name: basic-auth namespace: default type: Opaque echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-with-auth annotations: # type of authentication nginx.ingress.kubernetes.io/auth-type: basic # name of the secret that contains the user/password definitions nginx.ingress.kubernetes.io/auth-secret: basic-auth # message to display with an appropriate context why the authentication is required nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo' spec: rules: - host: foo.bar.com http: paths: - path: / backend: serviceName: http-svc servicePort: 80 \" | kubectl create -f - $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) > GET / HTTP/1.1 > Host: foo.bar.com > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 05:27:23 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Authentication Required - foo\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.10.0</center> </body> </html> * Connection #0 to host 10.2.29.4 left intact $ curl -v http://10.2.29.4/ -H 'Host: foo.bar.com' -u 'foo:bar' * Trying 10.2.29.4... * Connected to 10.2.29.4 (10.2.29.4) port 80 (#0) * Server auth using Basic with user 'foo' > GET / HTTP/1.1 > Host: foo.bar.com > Authorization: Basic Zm9vOmJhcg== > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.10.0 < Date: Wed, 11 May 2016 06:05:26 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < Vary: Accept-Encoding < CLIENT VALUES: client_address=10.2.29.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic Zm9vOmJhcg== connection=close host=foo.bar.com user-agent=curl/7.43.0 x-forwarded-for=10.2.29.1 x-forwarded-host=foo.bar.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.29.1 BODY: * Connection #0 to host 10.2.29.4 left intact -no body in request-","title":"Basic Authentication"},{"location":"examples/auth/client-certs/","text":"Client Certificate Authentication \u00b6 It is possible to enable Client-Certificate Authentication by adding additional annotations to your Ingress Resource. Before getting started you must have the following Certificates Setup: CA certificate and Key(Intermediate Certs need to be in CA) Server Certificate(Signed by CA) and Key (CN should be equal the hostname you will use) Client Certificate(Signed by CA) and Key For more details on the generation process, checkout the Prerequisite docs . You can have as many certificates as you want. If they're in the binary DER format, you can convert them as the following: openssl x509 -in certificate.der -inform der -out certificate.crt -outform pem Then, you can concatenate them all in only one file, named 'ca.crt' as the following: cat certificate1.crt certificate2.crt certificate3.crt >> ca.crt Note: Make sure that the Key Size is greater than 1024 and Hashing Algorithm(Digest) is something better than md5 for each certificate generated. Otherwise you will receive an error. Creating Certificate Secrets \u00b6 There are many different ways of configuring your secrets to enable Client-Certificate Authentication to work properly. You can create a secret containing just the CA certificate and another Secret containing the Server Certificate which is Signed by the CA. kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt kubectl create secret generic tls-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key You can create a secret containing CA certificate along with the Server Certificate, that can be used for both TLS and Client Auth. kubectl create secret generic ca-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key --from-file = ca.crt = ca.crt If you want to also enable Certificate Revocation List verification you can create the secret also containing the CRL file in PEM format: kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt --from-file = ca.crl = ca.crl Note: The CA Certificate must contain the trusted certificate authority chain to verify client certificates. Setup Instructions \u00b6 Add the annotations as provided in the ingress.yaml example to your own ingress resources as required. Test by performing a curl against the Ingress Path without the Client Cert and expect a Status Code 400. Test by performing a curl against the Ingress Path with the Client Cert and expect a Status Code 200.","title":"Client Certificate Authentication"},{"location":"examples/auth/client-certs/#client-certificate-authentication","text":"It is possible to enable Client-Certificate Authentication by adding additional annotations to your Ingress Resource. Before getting started you must have the following Certificates Setup: CA certificate and Key(Intermediate Certs need to be in CA) Server Certificate(Signed by CA) and Key (CN should be equal the hostname you will use) Client Certificate(Signed by CA) and Key For more details on the generation process, checkout the Prerequisite docs . You can have as many certificates as you want. If they're in the binary DER format, you can convert them as the following: openssl x509 -in certificate.der -inform der -out certificate.crt -outform pem Then, you can concatenate them all in only one file, named 'ca.crt' as the following: cat certificate1.crt certificate2.crt certificate3.crt >> ca.crt Note: Make sure that the Key Size is greater than 1024 and Hashing Algorithm(Digest) is something better than md5 for each certificate generated. Otherwise you will receive an error.","title":"Client Certificate Authentication"},{"location":"examples/auth/client-certs/#creating-certificate-secrets","text":"There are many different ways of configuring your secrets to enable Client-Certificate Authentication to work properly. You can create a secret containing just the CA certificate and another Secret containing the Server Certificate which is Signed by the CA. kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt kubectl create secret generic tls-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key You can create a secret containing CA certificate along with the Server Certificate, that can be used for both TLS and Client Auth. kubectl create secret generic ca-secret --from-file = tls.crt = server.crt --from-file = tls.key = server.key --from-file = ca.crt = ca.crt If you want to also enable Certificate Revocation List verification you can create the secret also containing the CRL file in PEM format: kubectl create secret generic ca-secret --from-file = ca.crt = ca.crt --from-file = ca.crl = ca.crl Note: The CA Certificate must contain the trusted certificate authority chain to verify client certificates.","title":"Creating Certificate Secrets"},{"location":"examples/auth/client-certs/#setup-instructions","text":"Add the annotations as provided in the ingress.yaml example to your own ingress resources as required. Test by performing a curl against the Ingress Path without the Client Cert and expect a Status Code 400. Test by performing a curl against the Ingress Path with the Client Cert and expect a Status Code 200.","title":"Setup Instructions"},{"location":"examples/auth/external-auth/","text":"External Basic Authentication \u00b6 Example 1: \u00b6 Use an external service (Basic Auth) located in https://httpbin.org $ kubectl create -f ingress.yaml ingress \"external-auth\" created $ kubectl get ing external-auth NAME HOSTS ADDRESS PORTS AGE external-auth external-auth-01.sample.com 172.17.4.99 80 13s $ kubectl get ing external-auth -o yaml apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/auth-url: https://httpbin.org/basic-auth/user/passwd creationTimestamp: 2016-10-03T13:50:35Z generation: 1 name: external-auth namespace: default resourceVersion: \"2068378\" selfLink: /apis/networking/v1beta1/namespaces/default/ingresses/external-auth uid: 5c388f1d-8970-11e6-9004-080027d2dc94 spec: rules: - host: external-auth-01.sample.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / status: loadBalancer: ingress: - ip: 172.17.4.99 $ Test 1: no username/password (expect code 401) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) > GET / HTTP/1.1 > Host: external-auth-01.sample.com > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:08 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact Test 2: valid username/password (expect code 200) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:passwd' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjpwYXNzd2Q= > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:50 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < CLIENT VALUES: client_address=10.2.60.2 command=GET real path=/ query=nil request_version=1.1 request_uri=http://external-auth-01.sample.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic dXNlcjpwYXNzd2Q= connection=close host=external-auth-01.sample.com user-agent=curl/7.50.1 x-forwarded-for=10.2.60.1 x-forwarded-host=external-auth-01.sample.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.60.1 BODY: * Connection #0 to host 172.17.4.99 left intact -no body in request- Test 3: invalid username/password (expect code 401) curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:user' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjp1c2Vy > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:53:04 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive * Authentication problem. Ignoring this. < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact","title":"External Basic Authentication"},{"location":"examples/auth/external-auth/#external-basic-authentication","text":"","title":"External Basic Authentication"},{"location":"examples/auth/external-auth/#example-1","text":"Use an external service (Basic Auth) located in https://httpbin.org $ kubectl create -f ingress.yaml ingress \"external-auth\" created $ kubectl get ing external-auth NAME HOSTS ADDRESS PORTS AGE external-auth external-auth-01.sample.com 172.17.4.99 80 13s $ kubectl get ing external-auth -o yaml apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/auth-url: https://httpbin.org/basic-auth/user/passwd creationTimestamp: 2016-10-03T13:50:35Z generation: 1 name: external-auth namespace: default resourceVersion: \"2068378\" selfLink: /apis/networking/v1beta1/namespaces/default/ingresses/external-auth uid: 5c388f1d-8970-11e6-9004-080027d2dc94 spec: rules: - host: external-auth-01.sample.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / status: loadBalancer: ingress: - ip: 172.17.4.99 $ Test 1: no username/password (expect code 401) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) > GET / HTTP/1.1 > Host: external-auth-01.sample.com > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:08 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact Test 2: valid username/password (expect code 200) $ curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:passwd' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjpwYXNzd2Q= > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:52:50 GMT < Content-Type: text/plain < Transfer-Encoding: chunked < Connection: keep-alive < CLIENT VALUES: client_address=10.2.60.2 command=GET real path=/ query=nil request_version=1.1 request_uri=http://external-auth-01.sample.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* authorization=Basic dXNlcjpwYXNzd2Q= connection=close host=external-auth-01.sample.com user-agent=curl/7.50.1 x-forwarded-for=10.2.60.1 x-forwarded-host=external-auth-01.sample.com x-forwarded-port=80 x-forwarded-proto=http x-real-ip=10.2.60.1 BODY: * Connection #0 to host 172.17.4.99 left intact -no body in request- Test 3: invalid username/password (expect code 401) curl -k http://172.17.4.99 -v -H 'Host: external-auth-01.sample.com' -u 'user:user' * Rebuilt URL to: http://172.17.4.99/ * Trying 172.17.4.99... * Connected to 172.17.4.99 (172.17.4.99) port 80 (#0) * Server auth using Basic with user 'user' > GET / HTTP/1.1 > Host: external-auth-01.sample.com > Authorization: Basic dXNlcjp1c2Vy > User-Agent: curl/7.50.1 > Accept: */* > < HTTP/1.1 401 Unauthorized < Server: nginx/1.11.3 < Date: Mon, 03 Oct 2016 14:53:04 GMT < Content-Type: text/html < Content-Length: 195 < Connection: keep-alive * Authentication problem. Ignoring this. < WWW-Authenticate: Basic realm=\"Fake Realm\" < <html> <head><title>401 Authorization Required</title></head> <body bgcolor=\"white\"> <center><h1>401 Authorization Required</h1></center> <hr><center>nginx/1.11.3</center> </body> </html> * Connection #0 to host 172.17.4.99 left intact","title":"Example 1:"},{"location":"examples/auth/oauth-external-auth/","text":"External OAUTH Authentication \u00b6 Overview \u00b6 The auth-url and auth-signin annotations allow you to use an external authentication provider to protect your Ingress resources. Important This annotation requires nginx-ingress-controller v0.9.0 or greater.) Key Detail \u00b6 This functionality is enabled by deploying multiple Ingress objects for a single host. One Ingress object has no special annotations and handles authentication. Other Ingress objects can then be annotated in such a way that require the user to authenticate against the first Ingress's endpoint, and can redirect 401 s to the same endpoint. Sample: ... metadata : name : application annotations : nginx.ingress.kubernetes.io/auth-url : \"https://$host/oauth2/auth\" nginx.ingress.kubernetes.io/auth-signin : \"https://$host/oauth2/start?rd=$escaped_request_uri\" ... Example: OAuth2 Proxy + Kubernetes-Dashboard \u00b6 This example will show you how to deploy oauth2_proxy into a Kubernetes cluster and use it to protect the Kubernetes Dashboard using github as oAuth2 provider Prepare \u00b6 Install the kubernetes dashboard kubectl create -f https://raw.githubusercontent.com/kubernetes/kops/master/addons/kubernetes-dashboard/v1.10.1.yaml Create a custom Github OAuth application Homepage URL is the FQDN in the Ingress rule, like https://foo.bar.com Authorization callback URL is the same as the base FQDN plus /oauth2 , like https://foo.bar.com/oauth2 Configure oauth2_proxy values in the file oauth2-proxy.yaml with the values: OAUTH2_PROXY_CLIENT_ID with the github <Client ID> OAUTH2_PROXY_CLIENT_SECRET with the github <Client Secret> OAUTH2_PROXY_COOKIE_SECRET with value of python -c 'import os,base64; print(base64.b64encode(os.urandom(16)).decode(\"ascii\"))' Customize the contents of the file dashboard-ingress.yaml : Replace __INGRESS_HOST__ with a valid FQDN and __INGRESS_SECRET__ with a Secret with a valid SSL certificate. Deploy the oauth2 proxy and the ingress rules running: $ kubectl create -f oauth2-proxy.yaml,dashboard-ingress.yaml Test the oauth integration accessing the configured URL, like https://foo.bar.com","title":"External OAUTH Authentication"},{"location":"examples/auth/oauth-external-auth/#external-oauth-authentication","text":"","title":"External OAUTH Authentication"},{"location":"examples/auth/oauth-external-auth/#overview","text":"The auth-url and auth-signin annotations allow you to use an external authentication provider to protect your Ingress resources. Important This annotation requires nginx-ingress-controller v0.9.0 or greater.)","title":"Overview"},{"location":"examples/auth/oauth-external-auth/#key-detail","text":"This functionality is enabled by deploying multiple Ingress objects for a single host. One Ingress object has no special annotations and handles authentication. Other Ingress objects can then be annotated in such a way that require the user to authenticate against the first Ingress's endpoint, and can redirect 401 s to the same endpoint. Sample: ... metadata : name : application annotations : nginx.ingress.kubernetes.io/auth-url : \"https://$host/oauth2/auth\" nginx.ingress.kubernetes.io/auth-signin : \"https://$host/oauth2/start?rd=$escaped_request_uri\" ...","title":"Key Detail"},{"location":"examples/auth/oauth-external-auth/#example-oauth2-proxy-kubernetes-dashboard","text":"This example will show you how to deploy oauth2_proxy into a Kubernetes cluster and use it to protect the Kubernetes Dashboard using github as oAuth2 provider","title":"Example: OAuth2 Proxy + Kubernetes-Dashboard"},{"location":"examples/auth/oauth-external-auth/#prepare","text":"Install the kubernetes dashboard kubectl create -f https://raw.githubusercontent.com/kubernetes/kops/master/addons/kubernetes-dashboard/v1.10.1.yaml Create a custom Github OAuth application Homepage URL is the FQDN in the Ingress rule, like https://foo.bar.com Authorization callback URL is the same as the base FQDN plus /oauth2 , like https://foo.bar.com/oauth2 Configure oauth2_proxy values in the file oauth2-proxy.yaml with the values: OAUTH2_PROXY_CLIENT_ID with the github <Client ID> OAUTH2_PROXY_CLIENT_SECRET with the github <Client Secret> OAUTH2_PROXY_COOKIE_SECRET with value of python -c 'import os,base64; print(base64.b64encode(os.urandom(16)).decode(\"ascii\"))' Customize the contents of the file dashboard-ingress.yaml : Replace __INGRESS_HOST__ with a valid FQDN and __INGRESS_SECRET__ with a Secret with a valid SSL certificate. Deploy the oauth2 proxy and the ingress rules running: $ kubectl create -f oauth2-proxy.yaml,dashboard-ingress.yaml Test the oauth integration accessing the configured URL, like https://foo.bar.com","title":"Prepare"},{"location":"examples/customization/configuration-snippets/","text":"Configuration Snippets \u00b6 Ingress \u00b6 The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at this example . $ kubectl apply -f ingress.yaml Test \u00b6 Check if the contents of the annotation are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Configuration Snippets"},{"location":"examples/customization/configuration-snippets/#configuration-snippets","text":"","title":"Configuration Snippets"},{"location":"examples/customization/configuration-snippets/#ingress","text":"The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at this example . $ kubectl apply -f ingress.yaml","title":"Ingress"},{"location":"examples/customization/configuration-snippets/#test","text":"Check if the contents of the annotation are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/custom-configuration/","text":"Custom Configuration \u00b6 Using a ConfigMap is possible to customize the NGINX configuration For example, if we want to change the timeouts we need to create a ConfigMap: $ cat configmap.yaml apiVersion: v1 data: proxy-connect-timeout: \"10\" proxy-read-timeout: \"120\" proxy-send-timeout: \"120\" kind: ConfigMap metadata: name: ingress-nginx-controller curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-configuration/configmap.yaml \\ | kubectl apply -f - If the Configmap it is updated, NGINX will be reloaded with the new configuration.","title":"Custom Configuration"},{"location":"examples/customization/custom-configuration/#custom-configuration","text":"Using a ConfigMap is possible to customize the NGINX configuration For example, if we want to change the timeouts we need to create a ConfigMap: $ cat configmap.yaml apiVersion: v1 data: proxy-connect-timeout: \"10\" proxy-read-timeout: \"120\" proxy-send-timeout: \"120\" kind: ConfigMap metadata: name: ingress-nginx-controller curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-configuration/configmap.yaml \\ | kubectl apply -f - If the Configmap it is updated, NGINX will be reloaded with the new configuration.","title":"Custom Configuration"},{"location":"examples/customization/custom-errors/","text":"Custom Errors \u00b6 This example demonstrates how to use a custom backend to render custom error pages. Customized default backend \u00b6 First, create the custom default-backend . It will be used by the Ingress controller later on. $ kubectl create -f custom-default-backend.yaml service \"nginx-errors\" created deployment.apps \"nginx-errors\" created This should have created a Deployment and a Service with the name nginx-errors . $ kubectl get deploy,svc NAME DESIRED CURRENT READY AGE deployment.apps/nginx-errors 1 1 1 10s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/nginx-errors ClusterIP 10.0.0.12 <none> 80/TCP 10s Ingress controller configuration \u00b6 If you do not already have an instance of the NGINX Ingress controller running, deploy it according to the deployment guide , then follow these steps: Edit the ingress-nginx-controller Deployment and set the value of the --default-backend-service flag to the name of the newly created error backend. Edit the ingress-nginx-controller ConfigMap and create the key custom-http-errors with a value of 404,503 . Take note of the IP address assigned to the NGINX Ingress controller Service. $ kubectl get svc ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE ingress-nginx ClusterIP 10.0.0.13 <none> 80/TCP,443/TCP 10m Note The ingress-nginx Service is of type ClusterIP in this example. This may vary depending on your environment. Make sure you can use the Service to reach NGINX before proceeding with the rest of this example. Testing error pages \u00b6 Let us send a couple of HTTP requests using cURL and validate everything is working as expected. A request to the default backend returns a 404 error with a custom message: $ curl -D- http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:11:24 GMT Content-Type: */* Transfer-Encoding: chunked Connection: keep-alive <span>The page you're looking for could not be found.</span> A request with a custom Accept header returns the corresponding document type (JSON): $ curl -D- -H 'Accept: application/json' http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:12:36 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding { \"message\": \"The page you're looking for could not be found\" } To go further with this example, feel free to deploy your own applications and Ingress objects, and validate that the responses are still in the correct format when a backend returns 503 (eg. if you scale a Deployment down to 0 replica).","title":"Custom Errors"},{"location":"examples/customization/custom-errors/#custom-errors","text":"This example demonstrates how to use a custom backend to render custom error pages.","title":"Custom Errors"},{"location":"examples/customization/custom-errors/#customized-default-backend","text":"First, create the custom default-backend . It will be used by the Ingress controller later on. $ kubectl create -f custom-default-backend.yaml service \"nginx-errors\" created deployment.apps \"nginx-errors\" created This should have created a Deployment and a Service with the name nginx-errors . $ kubectl get deploy,svc NAME DESIRED CURRENT READY AGE deployment.apps/nginx-errors 1 1 1 10s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/nginx-errors ClusterIP 10.0.0.12 <none> 80/TCP 10s","title":"Customized default backend"},{"location":"examples/customization/custom-errors/#ingress-controller-configuration","text":"If you do not already have an instance of the NGINX Ingress controller running, deploy it according to the deployment guide , then follow these steps: Edit the ingress-nginx-controller Deployment and set the value of the --default-backend-service flag to the name of the newly created error backend. Edit the ingress-nginx-controller ConfigMap and create the key custom-http-errors with a value of 404,503 . Take note of the IP address assigned to the NGINX Ingress controller Service. $ kubectl get svc ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE ingress-nginx ClusterIP 10.0.0.13 <none> 80/TCP,443/TCP 10m Note The ingress-nginx Service is of type ClusterIP in this example. This may vary depending on your environment. Make sure you can use the Service to reach NGINX before proceeding with the rest of this example.","title":"Ingress controller configuration"},{"location":"examples/customization/custom-errors/#testing-error-pages","text":"Let us send a couple of HTTP requests using cURL and validate everything is working as expected. A request to the default backend returns a 404 error with a custom message: $ curl -D- http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:11:24 GMT Content-Type: */* Transfer-Encoding: chunked Connection: keep-alive <span>The page you're looking for could not be found.</span> A request with a custom Accept header returns the corresponding document type (JSON): $ curl -D- -H 'Accept: application/json' http://10.0.0.13/ HTTP/1.1 404 Not Found Server: nginx/1.13.12 Date: Tue, 12 Jun 2018 19:12:36 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding { \"message\": \"The page you're looking for could not be found\" } To go further with this example, feel free to deploy your own applications and Ingress objects, and validate that the responses are still in the correct format when a backend returns 503 (eg. if you scale a Deployment down to 0 replica).","title":"Testing error pages"},{"location":"examples/customization/custom-headers/","text":"Custom Headers \u00b6 This example demonstrates configuration of the nginx ingress controller via a ConfigMap to pass a custom list of headers to the upstream server. custom-headers.yaml defines a ConfigMap in the ingress-nginx namespace named custom-headers , holding several custom X-prefixed HTTP headers. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/custom-headers.yaml configmap.yaml defines a ConfigMap in the ingress-nginx namespace named ingress-nginx-controller . This controls the global configuration of the ingress controller, and already exists in a standard installation. The key proxy-set-headers is set to cite the previously-created ingress-nginx/custom-headers ConfigMap. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/configmap.yaml The nginx ingress controller will read the ingress-nginx/ingress-nginx-controller ConfigMap, find the proxy-set-headers key, read HTTP headers from the ingress-nginx/custom-headers ConfigMap, and include those HTTP headers in all requests flowing from nginx to the backends. Test \u00b6 Check the contents of the ConfigMaps are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n ingress-nginx -- cat /etc/nginx/nginx.conf","title":"Custom Headers"},{"location":"examples/customization/custom-headers/#custom-headers","text":"This example demonstrates configuration of the nginx ingress controller via a ConfigMap to pass a custom list of headers to the upstream server. custom-headers.yaml defines a ConfigMap in the ingress-nginx namespace named custom-headers , holding several custom X-prefixed HTTP headers. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/custom-headers.yaml configmap.yaml defines a ConfigMap in the ingress-nginx namespace named ingress-nginx-controller . This controls the global configuration of the ingress controller, and already exists in a standard installation. The key proxy-set-headers is set to cite the previously-created ingress-nginx/custom-headers ConfigMap. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/custom-headers/configmap.yaml The nginx ingress controller will read the ingress-nginx/ingress-nginx-controller ConfigMap, find the proxy-set-headers key, read HTTP headers from the ingress-nginx/custom-headers ConfigMap, and include those HTTP headers in all requests flowing from nginx to the backends.","title":"Custom Headers"},{"location":"examples/customization/custom-headers/#test","text":"Check the contents of the ConfigMaps are present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n ingress-nginx -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/external-auth-headers/","text":"External authentication, authentication service response headers propagation \u00b6 This example demonstrates propagation of selected authentication service response headers to backend service. Sample configuration includes: Sample authentication service producing several response headers Authentication logic is based on HTTP header: requests with header User containing string internal are considered authenticated After successful authentication service generates response headers UserID and UserRole Sample echo service displaying header information Two ingress objects pointing to echo service Public, which allows access from unauthenticated users Private, which allows access from authenticated users only You can deploy the controller as follows: $ kubectl create -f deploy/ deployment \"demo-auth-service\" created service \"demo-auth-service\" created ingress \"demo-auth-service\" created deployment \"demo-echo-service\" created service \"demo-echo-service\" created ingress \"public-demo-echo-service\" created ingress \"secure-demo-echo-service\" created $ kubectl get po NAME READY STATUS RESTARTS AGE demo-auth-service-2769076528-7g9mh 1/1 Running 0 30s demo-echo-service-3636052215-3vw8c 1/1 Running 0 29s kubectl get ing NAME HOSTS ADDRESS PORTS AGE public-demo-echo-service public-demo-echo-service.kube.local 80 1m secure-demo-echo-service secure-demo-echo-service.kube.local 80 1m Test 1: public service with no auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:21 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 20 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: , UserRole: Test 2: secure service with no auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 403 Forbidden < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:18:48 GMT < Content-Type: text/html < Content-Length: 170 < Connection: keep-alive < <html> <head><title>403 Forbidden</title></head> <body bgcolor=\"white\"> <center><h1>403 Forbidden</h1></center> <hr><center>nginx/1.11.10</center> </body> </html> * Connection #0 to host 192.168.99.100 left intact Test 3: public service with valid auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:59 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 44 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 1443635317331776148, UserRole: admin Test 4: secure service with valid auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:17:23 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 43 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 605394647632969758, UserRole: admin","title":"External authentication"},{"location":"examples/customization/external-auth-headers/#external-authentication-authentication-service-response-headers-propagation","text":"This example demonstrates propagation of selected authentication service response headers to backend service. Sample configuration includes: Sample authentication service producing several response headers Authentication logic is based on HTTP header: requests with header User containing string internal are considered authenticated After successful authentication service generates response headers UserID and UserRole Sample echo service displaying header information Two ingress objects pointing to echo service Public, which allows access from unauthenticated users Private, which allows access from authenticated users only You can deploy the controller as follows: $ kubectl create -f deploy/ deployment \"demo-auth-service\" created service \"demo-auth-service\" created ingress \"demo-auth-service\" created deployment \"demo-echo-service\" created service \"demo-echo-service\" created ingress \"public-demo-echo-service\" created ingress \"secure-demo-echo-service\" created $ kubectl get po NAME READY STATUS RESTARTS AGE demo-auth-service-2769076528-7g9mh 1/1 Running 0 30s demo-echo-service-3636052215-3vw8c 1/1 Running 0 29s kubectl get ing NAME HOSTS ADDRESS PORTS AGE public-demo-echo-service public-demo-echo-service.kube.local 80 1m secure-demo-echo-service secure-demo-echo-service.kube.local 80 1m Test 1: public service with no auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:21 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 20 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: , UserRole: Test 2: secure service with no auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > < HTTP/1.1 403 Forbidden < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:18:48 GMT < Content-Type: text/html < Content-Length: 170 < Connection: keep-alive < <html> <head><title>403 Forbidden</title></head> <body bgcolor=\"white\"> <center><h1>403 Forbidden</h1></center> <hr><center>nginx/1.11.10</center> </body> </html> * Connection #0 to host 192.168.99.100 left intact Test 3: public service with valid auth header $ curl -H 'Host: public-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: public-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:19:59 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 44 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 1443635317331776148, UserRole: admin Test 4: secure service with valid auth header $ curl -H 'Host: secure-demo-echo-service.kube.local' -H 'User:internal' -v 192 .168.99.100 * Rebuilt URL to: 192.168.99.100/ * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 80 (#0) > GET / HTTP/1.1 > Host: secure-demo-echo-service.kube.local > User-Agent: curl/7.43.0 > Accept: */* > User:internal > < HTTP/1.1 200 OK < Server: nginx/1.11.10 < Date: Mon, 13 Mar 2017 20:17:23 GMT < Content-Type: text/plain; charset=utf-8 < Content-Length: 43 < Connection: keep-alive < * Connection #0 to host 192.168.99.100 left intact UserID: 605394647632969758, UserRole: admin","title":"External authentication, authentication service response headers propagation"},{"location":"examples/customization/ssl-dh-param/","text":"Custom DH parameters for perfect forward secrecy \u00b6 This example aims to demonstrate the deployment of an nginx ingress controller and use a ConfigMap to configure custom Diffie-Hellman parameters file to help with \"Perfect Forward Secrecy\". Custom configuration \u00b6 $ cat configmap.yaml apiVersion: v1 data: ssl-dh-param: \"ingress-nginx/lb-dhparam\" kind: ConfigMap metadata: name: ingress-nginx-controller namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f configmap.yaml Custom DH parameters secret \u00b6 $ > openssl dhparam 4096 2 > /dev/null | base64 LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ... $ cat ssl-dh-param.yaml apiVersion: v1 data: dhparam.pem: \"LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ...\" kind: Secret metadata: name: lb-dhparam namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f ssl-dh-param.yaml Test \u00b6 Check the contents of the configmap is present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Custom DH parameters for perfect forward secrecy"},{"location":"examples/customization/ssl-dh-param/#custom-dh-parameters-for-perfect-forward-secrecy","text":"This example aims to demonstrate the deployment of an nginx ingress controller and use a ConfigMap to configure custom Diffie-Hellman parameters file to help with \"Perfect Forward Secrecy\".","title":"Custom DH parameters for perfect forward secrecy"},{"location":"examples/customization/ssl-dh-param/#custom-configuration","text":"$ cat configmap.yaml apiVersion: v1 data: ssl-dh-param: \"ingress-nginx/lb-dhparam\" kind: ConfigMap metadata: name: ingress-nginx-controller namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f configmap.yaml","title":"Custom configuration"},{"location":"examples/customization/ssl-dh-param/#custom-dh-parameters-secret","text":"$ > openssl dhparam 4096 2 > /dev/null | base64 LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ... $ cat ssl-dh-param.yaml apiVersion: v1 data: dhparam.pem: \"LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ...\" kind: Secret metadata: name: lb-dhparam namespace: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/part-of: ingress-nginx $ kubectl create -f ssl-dh-param.yaml","title":"Custom DH parameters secret"},{"location":"examples/customization/ssl-dh-param/#test","text":"Check the contents of the configmap is present in the nginx.conf file using: kubectl exec ingress-nginx-controller-873061567-4n3k2 -n kube-system -- cat /etc/nginx/nginx.conf","title":"Test"},{"location":"examples/customization/sysctl/","text":"Sysctl tuning \u00b6 This example aims to demonstrate the use of an Init Container to adjust sysctl default values using kubectl patch kubectl patch deployment -n ingress-nginx nginx-ingress-controller \\ --patch=\"$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/sysctl/patch.json)\" Changes: Backlog Queue setting net.core.somaxconn from 128 to 32768 Ephemeral Ports setting net.ipv4.ip_local_port_range from 32768 60999 to 1024 65000 In a post from the NGINX blog , it is possible to see an explanation for the changes.","title":"Sysctl tuning"},{"location":"examples/customization/sysctl/#sysctl-tuning","text":"This example aims to demonstrate the use of an Init Container to adjust sysctl default values using kubectl patch kubectl patch deployment -n ingress-nginx nginx-ingress-controller \\ --patch=\"$(curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/customization/sysctl/patch.json)\" Changes: Backlog Queue setting net.core.somaxconn from 128 to 32768 Ephemeral Ports setting net.ipv4.ip_local_port_range from 32768 60999 to 1024 65000 In a post from the NGINX blog , it is possible to see an explanation for the changes.","title":"Sysctl tuning"},{"location":"examples/docker-registry/","text":"Docker registry \u00b6 This example demonstrates how to deploy a docker registry in the cluster and configure Ingress enable access from Internet Deployment \u00b6 First we deploy the docker registry in the cluster: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/deployment.yaml Important DO NOT RUN THIS IN PRODUCTION This deployment uses emptyDir in the volumeMount which means the contents of the registry will be deleted when the pod dies. The next required step is creation of the ingress rules. To do this we have two options: with and without TLS Without TLS \u00b6 Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-without-tls.yaml Important Running a docker registry without TLS requires we configure our local docker daemon with the insecure registry flag. Please check deploy a plain http registry With TLS \u00b6 Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-with-tls.yaml Deploy kube lego use Let's Encrypt certificates or edit the ingress rule to use a secret with an existing SSL certificate. Testing \u00b6 To test the registry is working correctly we download a known image from docker hub , create a tag pointing to the new registry and upload the image: docker pull ubuntu:16.04 docker tag ubuntu:16.04 `registry.<your domain>/ubuntu:16.04` docker push `registry.<your domain>/ubuntu:16.04` Please replace registry.<your domain> with your domain.","title":"Docker registry"},{"location":"examples/docker-registry/#docker-registry","text":"This example demonstrates how to deploy a docker registry in the cluster and configure Ingress enable access from Internet","title":"Docker registry"},{"location":"examples/docker-registry/#deployment","text":"First we deploy the docker registry in the cluster: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/deployment.yaml Important DO NOT RUN THIS IN PRODUCTION This deployment uses emptyDir in the volumeMount which means the contents of the registry will be deleted when the pod dies. The next required step is creation of the ingress rules. To do this we have two options: with and without TLS","title":"Deployment"},{"location":"examples/docker-registry/#without-tls","text":"Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-without-tls.yaml Important Running a docker registry without TLS requires we configure our local docker daemon with the insecure registry flag. Please check deploy a plain http registry","title":"Without TLS"},{"location":"examples/docker-registry/#with-tls","text":"Download and edit the yaml deployment replacing registry.<your domain> with a valid DNS name pointing to the ingress controller: wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/docker-registry/ingress-with-tls.yaml Deploy kube lego use Let's Encrypt certificates or edit the ingress rule to use a secret with an existing SSL certificate.","title":"With TLS"},{"location":"examples/docker-registry/#testing","text":"To test the registry is working correctly we download a known image from docker hub , create a tag pointing to the new registry and upload the image: docker pull ubuntu:16.04 docker tag ubuntu:16.04 `registry.<your domain>/ubuntu:16.04` docker push `registry.<your domain>/ubuntu:16.04` Please replace registry.<your domain> with your domain.","title":"Testing"},{"location":"examples/grpc/","text":"gRPC \u00b6 This example demonstrates how to route traffic to a gRPC service through the nginx controller. Prerequisites \u00b6 You have a kubernetes cluster running. You have a domain name such as example.com that is configured to route traffic to the ingress controller. Replace references to fortune-teller.stack.build (the domain name used in this example) to your own domain name (you're also responsible for provisioning an SSL certificate for the ingress). You have the nginx-ingress controller installed in typical fashion (must be at least quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0 for grpc support. You have a backend application running a gRPC server and listening for TCP traffic. If you prefer, you can use the fortune-teller application provided here as an example. Step 1: kubernetes Deployment \u00b6 $ kubectl create -f app.yaml This is a standard kubernetes deployment object. It is running a grpc service listening on port 50051 . The sample application fortune-teller-app is a grpc server implemented in go. Here's the stripped-down implementation: func main () { grpcServer := grpc . NewServer () fortune . RegisterFortuneTellerServer ( grpcServer , & FortuneTeller {}) lis , _ := net . Listen ( \"tcp\" , \":50051\" ) grpcServer . Serve ( lis ) } The takeaway is that we are not doing any TLS configuration on the server (as we are terminating TLS at the ingress level, grpc traffic will travel unencrypted inside the cluster and arrive \"insecure\"). For your own application you may or may not want to do this. If you prefer to forward encrypted traffic to your POD and terminate TLS at the gRPC server itself, add the ingress annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPCS\" . Step 2: the kubernetes Service \u00b6 $ kubectl create -f svc.yaml Here we have a typical service. Nothing special, just routing traffic to the backend application on port 50051 . Step 3: the kubernetes Ingress \u00b6 $ kubectl create -f ingress.yaml A few things to note: We've tagged the ingress with the annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPC\" . This is the magic ingredient that sets up the appropriate nginx configuration to route http/2 traffic to our service. We're terminating TLS at the ingress and have configured an SSL certificate fortune-teller.stack.build . The ingress matches traffic arriving as https://fortune-teller.stack.build:443 and routes unencrypted messages to our kubernetes service. Step 4: test the connection \u00b6 Once we've applied our configuration to kubernetes, it's time to test that we can actually talk to the backend. To do this, we'll use the grpcurl utility: $ grpcurl fortune-teller.stack.build:443 build.stack.fortune.FortuneTeller/Predict { \"message\" : \"Let us endeavor so to live that when we come to die even the undertaker will be sorry.\\n\\t\\t-- Mark Twain, \\\"Pudd'nhead Wilson's Calendar\\\"\" } Debugging Hints \u00b6 Obviously, watch the logs on your app. Watch the logs for the nginx-ingress-controller (increasing verbosity as needed). Double-check your address and ports. Set the GODEBUG=http2debug=2 environment variable to get detailed http/2 logging on the client and/or server. Study RFC 7540 (http/2) https://tools.ietf.org/html/rfc7540 . If you are developing public gRPC endpoints, check out https://proto.stack.build, a protocol buffer / gRPC build service that can use to help make it easier for your users to consume your API. See also the specific GRPC settings of NGINX: https://nginx.org/en/docs/http/ngx_http_grpc_module.html Notes on using response/request streams \u00b6 If your server does only response streaming and you expect a stream to be open longer than 60 seconds, you will have to change the grpc_read_timeout to acommodate for this. If your service does only request streaming and you expect a stream to be open longer than 60 seconds, you have to change the grpc_send_timeout and the client_body_timeout . If you do both response and request streaming with an open stream longer than 60 seconds, you have to change all three timeouts: grpc_read_timeout , grpc_send_timeout and client_body_timeout . Values for the timeouts must be specified as e.g. \"1200s\" . On the most recent versions of nginx-ingress, changing these timeouts requires using the nginx.ingress.kubernetes.io/server-snippet annotation. There are plans for future releases to allow using the Kubernetes annotations to define each timeout seperately.","title":"gRPC"},{"location":"examples/grpc/#grpc","text":"This example demonstrates how to route traffic to a gRPC service through the nginx controller.","title":"gRPC"},{"location":"examples/grpc/#prerequisites","text":"You have a kubernetes cluster running. You have a domain name such as example.com that is configured to route traffic to the ingress controller. Replace references to fortune-teller.stack.build (the domain name used in this example) to your own domain name (you're also responsible for provisioning an SSL certificate for the ingress). You have the nginx-ingress controller installed in typical fashion (must be at least quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0 for grpc support. You have a backend application running a gRPC server and listening for TCP traffic. If you prefer, you can use the fortune-teller application provided here as an example.","title":"Prerequisites"},{"location":"examples/grpc/#step-1-kubernetes-deployment","text":"$ kubectl create -f app.yaml This is a standard kubernetes deployment object. It is running a grpc service listening on port 50051 . The sample application fortune-teller-app is a grpc server implemented in go. Here's the stripped-down implementation: func main () { grpcServer := grpc . NewServer () fortune . RegisterFortuneTellerServer ( grpcServer , & FortuneTeller {}) lis , _ := net . Listen ( \"tcp\" , \":50051\" ) grpcServer . Serve ( lis ) } The takeaway is that we are not doing any TLS configuration on the server (as we are terminating TLS at the ingress level, grpc traffic will travel unencrypted inside the cluster and arrive \"insecure\"). For your own application you may or may not want to do this. If you prefer to forward encrypted traffic to your POD and terminate TLS at the gRPC server itself, add the ingress annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPCS\" .","title":"Step 1: kubernetes Deployment"},{"location":"examples/grpc/#step-2-the-kubernetes-service","text":"$ kubectl create -f svc.yaml Here we have a typical service. Nothing special, just routing traffic to the backend application on port 50051 .","title":"Step 2: the kubernetes Service"},{"location":"examples/grpc/#step-3-the-kubernetes-ingress","text":"$ kubectl create -f ingress.yaml A few things to note: We've tagged the ingress with the annotation nginx.ingress.kubernetes.io/backend-protocol: \"GRPC\" . This is the magic ingredient that sets up the appropriate nginx configuration to route http/2 traffic to our service. We're terminating TLS at the ingress and have configured an SSL certificate fortune-teller.stack.build . The ingress matches traffic arriving as https://fortune-teller.stack.build:443 and routes unencrypted messages to our kubernetes service.","title":"Step 3: the kubernetes Ingress"},{"location":"examples/grpc/#step-4-test-the-connection","text":"Once we've applied our configuration to kubernetes, it's time to test that we can actually talk to the backend. To do this, we'll use the grpcurl utility: $ grpcurl fortune-teller.stack.build:443 build.stack.fortune.FortuneTeller/Predict { \"message\" : \"Let us endeavor so to live that when we come to die even the undertaker will be sorry.\\n\\t\\t-- Mark Twain, \\\"Pudd'nhead Wilson's Calendar\\\"\" }","title":"Step 4: test the connection"},{"location":"examples/grpc/#debugging-hints","text":"Obviously, watch the logs on your app. Watch the logs for the nginx-ingress-controller (increasing verbosity as needed). Double-check your address and ports. Set the GODEBUG=http2debug=2 environment variable to get detailed http/2 logging on the client and/or server. Study RFC 7540 (http/2) https://tools.ietf.org/html/rfc7540 . If you are developing public gRPC endpoints, check out https://proto.stack.build, a protocol buffer / gRPC build service that can use to help make it easier for your users to consume your API. See also the specific GRPC settings of NGINX: https://nginx.org/en/docs/http/ngx_http_grpc_module.html","title":"Debugging Hints"},{"location":"examples/grpc/#notes-on-using-responserequest-streams","text":"If your server does only response streaming and you expect a stream to be open longer than 60 seconds, you will have to change the grpc_read_timeout to acommodate for this. If your service does only request streaming and you expect a stream to be open longer than 60 seconds, you have to change the grpc_send_timeout and the client_body_timeout . If you do both response and request streaming with an open stream longer than 60 seconds, you have to change all three timeouts: grpc_read_timeout , grpc_send_timeout and client_body_timeout . Values for the timeouts must be specified as e.g. \"1200s\" . On the most recent versions of nginx-ingress, changing these timeouts requires using the nginx.ingress.kubernetes.io/server-snippet annotation. There are plans for future releases to allow using the Kubernetes annotations to define each timeout seperately.","title":"Notes on using response/request streams"},{"location":"examples/multi-tls/","text":"Multi TLS certificate termination \u00b6 This example uses 2 different certificates to terminate SSL for 2 hostnames. Deploy the controller by creating the rc in the parent dir Create tls secrets for foo.bar.com and bar.baz.com as indicated in the yaml Create multi-tls.yaml This should generate a segment like: $ kubectl exec -it nginx-ingress-controller-6vwd1 -- cat /etc/nginx/nginx.conf | grep \"foo.bar.com\" -B 7 -A 35 server { listen 80; listen 443 ssl http2; ssl_certificate /etc/nginx-ssl/default-foobar.pem; ssl_certificate_key /etc/nginx-ssl/default-foobar.pem; server_name foo.bar.com; if ($scheme = http) { return 301 https://$host$request_uri; } location / { proxy_set_header Host $host; # Pass Real IP proxy_set_header X-Real-IP $remote_addr; # Allow websocket connections proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Proto $pass_access_scheme; proxy_connect_timeout 5s; proxy_send_timeout 60s; proxy_read_timeout 60s; proxy_redirect off; proxy_buffering off; proxy_http_version 1.1; proxy_pass http://default-http-svc-80; } And you should be able to reach your nginx service or http-svc service using a hostname switch: $ kubectl get ing NAME RULE BACKEND ADDRESS AGE foo-tls - 104.154.30.67 13m foo.bar.com / http-svc:80 bar.baz.com / nginx:80 $ curl https://104.154.30.67 -H 'Host:foo.bar.com' -k CLIENT VALUES: client_address=10.245.0.6 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close host=foo.bar.com user-agent=curl/7.35.0 x-forwarded-for=10.245.0.1 x-forwarded-host=foo.bar.com x-forwarded-proto=https $ curl https://104.154.30.67 -H 'Host:bar.baz.com' -k <!DOCTYPE html> <html> <head> <title>Welcome to nginx on Debian!</title> $ curl 104 .154.30.67 default backend - 404","title":"Multi TLS certificate termination"},{"location":"examples/multi-tls/#multi-tls-certificate-termination","text":"This example uses 2 different certificates to terminate SSL for 2 hostnames. Deploy the controller by creating the rc in the parent dir Create tls secrets for foo.bar.com and bar.baz.com as indicated in the yaml Create multi-tls.yaml This should generate a segment like: $ kubectl exec -it nginx-ingress-controller-6vwd1 -- cat /etc/nginx/nginx.conf | grep \"foo.bar.com\" -B 7 -A 35 server { listen 80; listen 443 ssl http2; ssl_certificate /etc/nginx-ssl/default-foobar.pem; ssl_certificate_key /etc/nginx-ssl/default-foobar.pem; server_name foo.bar.com; if ($scheme = http) { return 301 https://$host$request_uri; } location / { proxy_set_header Host $host; # Pass Real IP proxy_set_header X-Real-IP $remote_addr; # Allow websocket connections proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Proto $pass_access_scheme; proxy_connect_timeout 5s; proxy_send_timeout 60s; proxy_read_timeout 60s; proxy_redirect off; proxy_buffering off; proxy_http_version 1.1; proxy_pass http://default-http-svc-80; } And you should be able to reach your nginx service or http-svc service using a hostname switch: $ kubectl get ing NAME RULE BACKEND ADDRESS AGE foo-tls - 104.154.30.67 13m foo.bar.com / http-svc:80 bar.baz.com / nginx:80 $ curl https://104.154.30.67 -H 'Host:foo.bar.com' -k CLIENT VALUES: client_address=10.245.0.6 command=GET real path=/ query=nil request_version=1.1 request_uri=http://foo.bar.com:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close host=foo.bar.com user-agent=curl/7.35.0 x-forwarded-for=10.245.0.1 x-forwarded-host=foo.bar.com x-forwarded-proto=https $ curl https://104.154.30.67 -H 'Host:bar.baz.com' -k <!DOCTYPE html> <html> <head> <title>Welcome to nginx on Debian!</title> $ curl 104 .154.30.67 default backend - 404","title":"Multi TLS certificate termination"},{"location":"examples/psp/","text":"Pod Security Policy (PSP) \u00b6 In most clusters today, by default, all resources (e.g. Deployments and ReplicatSets) have permissions to create pods. Kubernetes however provides a more fine-grained authorization policy called Pod Security Policy (PSP) . PSP allows the cluster owner to define the permission of each object, for example creating a pod. If you have PSP enabled on the cluster, and you deploy ingress-nginx, you will need to provide the Deployment with the permissions to create pods. Before applying any objects, first apply the PSP permissions by running: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/psp/psp.yaml Note: PSP permissions must be granted before to the creation of the Deployment and the ReplicaSet.","title":"Pod Security Policy (PSP)"},{"location":"examples/psp/#pod-security-policy-psp","text":"In most clusters today, by default, all resources (e.g. Deployments and ReplicatSets) have permissions to create pods. Kubernetes however provides a more fine-grained authorization policy called Pod Security Policy (PSP) . PSP allows the cluster owner to define the permission of each object, for example creating a pod. If you have PSP enabled on the cluster, and you deploy ingress-nginx, you will need to provide the Deployment with the permissions to create pods. Before applying any objects, first apply the PSP permissions by running: kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/docs/examples/psp/psp.yaml Note: PSP permissions must be granted before to the creation of the Deployment and the ReplicaSet.","title":"Pod Security Policy (PSP)"},{"location":"examples/rewrite/","text":"Rewrite \u00b6 This example demonstrates how to use the Rewrite annotations Prerequisites \u00b6 You will need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster. Deployment \u00b6 Rewriting can be controlled using the following annotations: Name Description Values nginx.ingress.kubernetes.io/rewrite-target Target URI where the traffic must be redirected string nginx.ingress.kubernetes.io/ssl-redirect Indicates if the location section is accessible SSL only (defaults to True when Ingress contains a Certificate) bool nginx.ingress.kubernetes.io/force-ssl-redirect Forces the redirection to HTTPS even if the Ingress is not TLS Enabled bool nginx.ingress.kubernetes.io/app-root Defines the Application Root that the Controller must redirect if it's in '/' context string nginx.ingress.kubernetes.io/use-regex Indicates if the paths defined on an Ingress use regular expressions bool Examples \u00b6 Rewrite Target \u00b6 Attention Starting in Version 0.22.0, ingress definitions using the annotation nginx.ingress.kubernetes.io/rewrite-target are not backwards compatible with previous versions. In Version 0.22.0 and beyond, any substrings within the request URI that need to be passed to the rewritten path must explicitly be defined in a capture group . Note Captured groups are saved in numbered placeholders, chronologically, in the form $1 , $2 ... $n . These placeholders can be used as parameters in the rewrite-target annotation. Create an Ingress rule with a rewrite annotation: $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/rewrite-target: /$2 name: rewrite namespace: default spec: rules: - host: rewrite.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: /something(/|$)(.*) ' | kubectl create -f - In this ingress definition, any characters captured by (.*) will be assigned to the placeholder $2 , which is then used as a parameter in the rewrite-target annotation. For example, the ingress definition above will result in the following rewrites: rewrite.bar.com/something rewrites to rewrite.bar.com/ rewrite.bar.com/something/ rewrites to rewrite.bar.com/ rewrite.bar.com/something/new rewrites to rewrite.bar.com/new App Root \u00b6 Create an Ingress rule with a app-root annotation: $ echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/app-root: /app1 name: approot namespace: default spec: rules: - host: approot.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / \" | kubectl create -f - Check the rewrite is working $ curl -I -k http://approot.bar.com/ HTTP/1.1 302 Moved Temporarily Server: nginx/1.11.10 Date: Mon, 13 Mar 2017 14:57:15 GMT Content-Type: text/html Content-Length: 162 Location: http://stickyingress.example.com/app1 Connection: keep-alive","title":"Rewrite"},{"location":"examples/rewrite/#rewrite","text":"This example demonstrates how to use the Rewrite annotations","title":"Rewrite"},{"location":"examples/rewrite/#prerequisites","text":"You will need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster.","title":"Prerequisites"},{"location":"examples/rewrite/#deployment","text":"Rewriting can be controlled using the following annotations: Name Description Values nginx.ingress.kubernetes.io/rewrite-target Target URI where the traffic must be redirected string nginx.ingress.kubernetes.io/ssl-redirect Indicates if the location section is accessible SSL only (defaults to True when Ingress contains a Certificate) bool nginx.ingress.kubernetes.io/force-ssl-redirect Forces the redirection to HTTPS even if the Ingress is not TLS Enabled bool nginx.ingress.kubernetes.io/app-root Defines the Application Root that the Controller must redirect if it's in '/' context string nginx.ingress.kubernetes.io/use-regex Indicates if the paths defined on an Ingress use regular expressions bool","title":"Deployment"},{"location":"examples/rewrite/#examples","text":"","title":"Examples"},{"location":"examples/rewrite/#rewrite-target","text":"Attention Starting in Version 0.22.0, ingress definitions using the annotation nginx.ingress.kubernetes.io/rewrite-target are not backwards compatible with previous versions. In Version 0.22.0 and beyond, any substrings within the request URI that need to be passed to the rewritten path must explicitly be defined in a capture group . Note Captured groups are saved in numbered placeholders, chronologically, in the form $1 , $2 ... $n . These placeholders can be used as parameters in the rewrite-target annotation. Create an Ingress rule with a rewrite annotation: $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/rewrite-target: /$2 name: rewrite namespace: default spec: rules: - host: rewrite.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: /something(/|$)(.*) ' | kubectl create -f - In this ingress definition, any characters captured by (.*) will be assigned to the placeholder $2 , which is then used as a parameter in the rewrite-target annotation. For example, the ingress definition above will result in the following rewrites: rewrite.bar.com/something rewrites to rewrite.bar.com/ rewrite.bar.com/something/ rewrites to rewrite.bar.com/ rewrite.bar.com/something/new rewrites to rewrite.bar.com/new","title":"Rewrite Target"},{"location":"examples/rewrite/#app-root","text":"Create an Ingress rule with a app-root annotation: $ echo \" apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/app-root: /app1 name: approot namespace: default spec: rules: - host: approot.bar.com http: paths: - backend: serviceName: http-svc servicePort: 80 path: / \" | kubectl create -f - Check the rewrite is working $ curl -I -k http://approot.bar.com/ HTTP/1.1 302 Moved Temporarily Server: nginx/1.11.10 Date: Mon, 13 Mar 2017 14:57:15 GMT Content-Type: text/html Content-Length: 162 Location: http://stickyingress.example.com/app1 Connection: keep-alive","title":"App Root"},{"location":"examples/static-ip/","text":"Static IPs \u00b6 This example demonstrates how to assign a static-ip to an Ingress on through the Nginx controller. Prerequisites \u00b6 You need a TLS cert and a test HTTP service for this example. You will also need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster. Acquiring an IP \u00b6 Since instances of the nginx controller actually run on nodes in your cluster, by default nginx Ingresses will only get static IPs if your cloudprovider supports static IP assignments to nodes. On GKE/GCE for example, even though nodes get static IPs, the IPs are not retained across upgrade. To acquire a static IP for the nginx ingress controller, simply put it behind a Service of Type=LoadBalancer . First, create a loadbalancer Service and wait for it to acquire an IP $ kubectl create -f static-ip-svc.yaml service \"nginx-ingress-lb\" created $ kubectl get svc nginx-ingress-lb NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE nginx-ingress-lb 10.0.138.113 104.154.109.191 80:31457/TCP,443:32240/TCP 15m then, update the ingress controller so it adopts the static IP of the Service by passing the --publish-service flag (the example yaml used in the next step already has it set to \"nginx-ingress-lb\"). $ kubectl create -f nginx-ingress-controller.yaml deployment \"nginx-ingress-controller\" created Assigning the IP to an Ingress \u00b6 From here on every Ingress created with the ingress.class annotation set to nginx will get the IP allocated in the previous step $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing ingress-nginx NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m $ curl 104 .154.109.191 -kL CLIENT VALUES: client_address=10.180.1.25 command=GET real path=/ query=nil request_version=1.1 request_uri=http://104.154.109.191:8080/ ... Retaining the IP \u00b6 You can test retention by deleting the Ingress $ kubectl delete ing nginx-ingress ingress \"nginx-ingress\" deleted $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing nginx-ingress NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m Note that unlike the GCE Ingress, the same loadbalancer IP is shared amongst all Ingresses, because all requests are proxied through the same set of nginx controllers. Promote ephemeral to static IP \u00b6 To promote the allocated IP to static, you can update the Service manifest $ kubectl patch svc nginx-ingress-lb -p '{\"spec\": {\"loadBalancerIP\": \"104.154.109.191\"}}' \"nginx-ingress-lb\" patched and promote the IP to static (promotion works differently for cloudproviders, provided example is for GKE/GCE) ` $ gcloud compute addresses create nginx-ingress-lb --addresses 104 .154.109.191 --region us-central1 Created [https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb]. --- address: 104.154.109.191 creationTimestamp: '2017-01-31T16:34:50.089-08:00' description: '' id: '5208037144487826373' kind: compute#address name: nginx-ingress-lb region: us-central1 selfLink: https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb status: IN_USE users: - us-central1/forwardingRules/a09f6913ae80e11e6a8c542010af0000 Now even if the Service is deleted, the IP will persist, so you can recreate the Service with spec.loadBalancerIP set to 104.154.109.191 .","title":"Static IPs"},{"location":"examples/static-ip/#static-ips","text":"This example demonstrates how to assign a static-ip to an Ingress on through the Nginx controller.","title":"Static IPs"},{"location":"examples/static-ip/#prerequisites","text":"You need a TLS cert and a test HTTP service for this example. You will also need to make sure your Ingress targets exactly one Ingress controller by specifying the ingress.class annotation , and that you have an ingress controller running in your cluster.","title":"Prerequisites"},{"location":"examples/static-ip/#acquiring-an-ip","text":"Since instances of the nginx controller actually run on nodes in your cluster, by default nginx Ingresses will only get static IPs if your cloudprovider supports static IP assignments to nodes. On GKE/GCE for example, even though nodes get static IPs, the IPs are not retained across upgrade. To acquire a static IP for the nginx ingress controller, simply put it behind a Service of Type=LoadBalancer . First, create a loadbalancer Service and wait for it to acquire an IP $ kubectl create -f static-ip-svc.yaml service \"nginx-ingress-lb\" created $ kubectl get svc nginx-ingress-lb NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE nginx-ingress-lb 10.0.138.113 104.154.109.191 80:31457/TCP,443:32240/TCP 15m then, update the ingress controller so it adopts the static IP of the Service by passing the --publish-service flag (the example yaml used in the next step already has it set to \"nginx-ingress-lb\"). $ kubectl create -f nginx-ingress-controller.yaml deployment \"nginx-ingress-controller\" created","title":"Acquiring an IP"},{"location":"examples/static-ip/#assigning-the-ip-to-an-ingress","text":"From here on every Ingress created with the ingress.class annotation set to nginx will get the IP allocated in the previous step $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing ingress-nginx NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m $ curl 104 .154.109.191 -kL CLIENT VALUES: client_address=10.180.1.25 command=GET real path=/ query=nil request_version=1.1 request_uri=http://104.154.109.191:8080/ ...","title":"Assigning the IP to an Ingress"},{"location":"examples/static-ip/#retaining-the-ip","text":"You can test retention by deleting the Ingress $ kubectl delete ing nginx-ingress ingress \"nginx-ingress\" deleted $ kubectl create -f nginx-ingress.yaml ingress \"nginx-ingress\" created $ kubectl get ing nginx-ingress NAME HOSTS ADDRESS PORTS AGE nginx-ingress * 104.154.109.191 80, 443 13m Note that unlike the GCE Ingress, the same loadbalancer IP is shared amongst all Ingresses, because all requests are proxied through the same set of nginx controllers.","title":"Retaining the IP"},{"location":"examples/static-ip/#promote-ephemeral-to-static-ip","text":"To promote the allocated IP to static, you can update the Service manifest $ kubectl patch svc nginx-ingress-lb -p '{\"spec\": {\"loadBalancerIP\": \"104.154.109.191\"}}' \"nginx-ingress-lb\" patched and promote the IP to static (promotion works differently for cloudproviders, provided example is for GKE/GCE) ` $ gcloud compute addresses create nginx-ingress-lb --addresses 104 .154.109.191 --region us-central1 Created [https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb]. --- address: 104.154.109.191 creationTimestamp: '2017-01-31T16:34:50.089-08:00' description: '' id: '5208037144487826373' kind: compute#address name: nginx-ingress-lb region: us-central1 selfLink: https://www.googleapis.com/compute/v1/projects/kubernetesdev/regions/us-central1/addresses/nginx-ingress-lb status: IN_USE users: - us-central1/forwardingRules/a09f6913ae80e11e6a8c542010af0000 Now even if the Service is deleted, the IP will persist, so you can recreate the Service with spec.loadBalancerIP set to 104.154.109.191 .","title":"Promote ephemeral to static IP"},{"location":"examples/tls-termination/","text":"TLS termination \u00b6 This example demonstrates how to terminate TLS through the nginx Ingress controller. Prerequisites \u00b6 You need a TLS cert and a test HTTP service for this example. Deployment \u00b6 Create a ingress.yaml file. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : nginx-test spec : tls : - hosts : - foo.bar.com # This assumes tls-secret exists and the SSL # certificate contains a CN for foo.bar.com secretName : tls-secret rules : - host : foo.bar.com http : paths : - path : / backend : # This assumes http-svc exists and routes to healthy endpoints serviceName : http-svc servicePort : 80 The following command instructs the controller to terminate traffic using the provided TLS cert, and forward un-encrypted HTTP traffic to the test HTTP service. kubectl apply -f ingress.yaml Validation \u00b6 You can confirm that the Ingress works. $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: 104.198.183.6 Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) TLS: tls-secret terminates Rules: Host Path Backends ---- ---- -------- * http-svc:80 (<none>) Annotations: Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal UPDATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal CREATE ip: 104.198.183.6 7s 7s 1 {nginx-ingress-controller } Warning MAPPING Ingress rule 'default/nginx-test' contains no path definition. Assuming / $ curl 104 .198.183.6 -L curl: (60) SSL certificate problem: self signed certificate More details here: http://curl.haxx.se/docs/sslcerts.html $ curl 104 .198.183.6 -Lk CLIENT VALUES: client_address=10.240.0.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://35.186.221.137:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=Keep-Alive host=35.186.221.137 user-agent=curl/7.46.0 via=1.1 google x-cloud-trace-context=f708ea7e369d4514fc90d51d7e27e91d/13322322294276298106 x-forwarded-for=104.132.0.80, 35.186.221.137 x-forwarded-proto=https BODY:","title":"TLS termination"},{"location":"examples/tls-termination/#tls-termination","text":"This example demonstrates how to terminate TLS through the nginx Ingress controller.","title":"TLS termination"},{"location":"examples/tls-termination/#prerequisites","text":"You need a TLS cert and a test HTTP service for this example.","title":"Prerequisites"},{"location":"examples/tls-termination/#deployment","text":"Create a ingress.yaml file. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : nginx-test spec : tls : - hosts : - foo.bar.com # This assumes tls-secret exists and the SSL # certificate contains a CN for foo.bar.com secretName : tls-secret rules : - host : foo.bar.com http : paths : - path : / backend : # This assumes http-svc exists and routes to healthy endpoints serviceName : http-svc servicePort : 80 The following command instructs the controller to terminate traffic using the provided TLS cert, and forward un-encrypted HTTP traffic to the test HTTP service. kubectl apply -f ingress.yaml","title":"Deployment"},{"location":"examples/tls-termination/#validation","text":"You can confirm that the Ingress works. $ kubectl describe ing nginx-test Name: nginx-test Namespace: default Address: 104.198.183.6 Default backend: default-http-backend:80 (10.180.0.4:8080,10.240.0.2:8080) TLS: tls-secret terminates Rules: Host Path Backends ---- ---- -------- * http-svc:80 (<none>) Annotations: Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 7s 7s 1 {nginx-ingress-controller } Normal CREATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal UPDATE default/nginx-test 7s 7s 1 {nginx-ingress-controller } Normal CREATE ip: 104.198.183.6 7s 7s 1 {nginx-ingress-controller } Warning MAPPING Ingress rule 'default/nginx-test' contains no path definition. Assuming / $ curl 104 .198.183.6 -L curl: (60) SSL certificate problem: self signed certificate More details here: http://curl.haxx.se/docs/sslcerts.html $ curl 104 .198.183.6 -Lk CLIENT VALUES: client_address=10.240.0.4 command=GET real path=/ query=nil request_version=1.1 request_uri=http://35.186.221.137:8080/ SERVER VALUES: server_version=nginx: 1.9.11 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=Keep-Alive host=35.186.221.137 user-agent=curl/7.46.0 via=1.1 google x-cloud-trace-context=f708ea7e369d4514fc90d51d7e27e91d/13322322294276298106 x-forwarded-for=104.132.0.80, 35.186.221.137 x-forwarded-proto=https BODY:","title":"Validation"},{"location":"user-guide/basic-usage/","text":"Basic usage - host based routing \u00b6 ingress-nginx can be used for many use cases, inside various cloud provider and supports a lot of configurations. In this section you can find a common usage scenario where a single load balancer powered by ingress-nginx will route traffic to 2 different HTTP backend services based on the host name. First of all follow the instructions to install ingress-nginx. Then imagine that you need to expose 2 HTTP services already installed: myServiceA , myServiceB . Let's say that you want to expose the first at myServiceA.foo.org and the second at myServiceB.foo.org . One possible solution is to create two ingress resources: apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myservicea annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myservicea.foo.org http: paths: - path: / backend: serviceName: myservicea servicePort: 80 --- apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myserviceb annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myserviceb.foo.org http: paths: - path: / backend: serviceName: myserviceb servicePort: 80 When you apply this yaml, 2 ingress resources will be created managed by the ingress-nginx instance. Nginx is configured to automatically discover all ingress with the kubernetes.io/ingress.class: \"nginx\" annotation. Please note that the ingress resource should be placed inside the same namespace of the backend resource. On many cloud providers ingress-nginx will also create the corresponding Load Balancer resource. All you have to do is get the external IP and add a DNS A record inside your DNS provider that point myServiceA.foo.org and myServiceB.foo.org to the nginx external IP. Get the external IP by running: kubectl get services -n ingress-nginx","title":"Basic usage"},{"location":"user-guide/basic-usage/#basic-usage-host-based-routing","text":"ingress-nginx can be used for many use cases, inside various cloud provider and supports a lot of configurations. In this section you can find a common usage scenario where a single load balancer powered by ingress-nginx will route traffic to 2 different HTTP backend services based on the host name. First of all follow the instructions to install ingress-nginx. Then imagine that you need to expose 2 HTTP services already installed: myServiceA , myServiceB . Let's say that you want to expose the first at myServiceA.foo.org and the second at myServiceB.foo.org . One possible solution is to create two ingress resources: apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myservicea annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myservicea.foo.org http: paths: - path: / backend: serviceName: myservicea servicePort: 80 --- apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: ingress-myserviceb annotations: # use the shared ingress-nginx kubernetes.io/ingress.class: \"nginx\" spec: rules: - host: myserviceb.foo.org http: paths: - path: / backend: serviceName: myserviceb servicePort: 80 When you apply this yaml, 2 ingress resources will be created managed by the ingress-nginx instance. Nginx is configured to automatically discover all ingress with the kubernetes.io/ingress.class: \"nginx\" annotation. Please note that the ingress resource should be placed inside the same namespace of the backend resource. On many cloud providers ingress-nginx will also create the corresponding Load Balancer resource. All you have to do is get the external IP and add a DNS A record inside your DNS provider that point myServiceA.foo.org and myServiceB.foo.org to the nginx external IP. Get the external IP by running: kubectl get services -n ingress-nginx","title":"Basic usage - host based routing"},{"location":"user-guide/cli-arguments/","text":"Command line arguments \u00b6 The following command line arguments are accepted by the Ingress controller executable. They are set in the container spec of the nginx-ingress-controller Deployment manifest Argument Description --add_dir_header If true, adds the file directory to the header --alsologtostderr log to standard error as well as files --annotations-prefix Prefix of the Ingress annotations specific to the NGINX controller. (default \"nginx.ingress.kubernetes.io\") --apiserver-host Address of the Kubernetes API server. Takes the form \"protocol://address:port\". If not specified, it is assumed the program runs inside a Kubernetes cluster and local discovery is attempted. --certificate-authority Path to a cert file for the certificate authority. This certificate is used only when the flag --apiserver-host is specified. --configmap Name of the ConfigMap containing custom global configurations for the controller. --default-backend-service Service used to serve HTTP requests not matching any known server name (catch-all). Takes the form \"namespace/name\". The controller configures NGINX to forward requests to the first port of this Service. --default-server-port Port to use for exposing the default server (catch-all). (default 8181) --default-ssl-certificate Secret containing a SSL certificate to be used by the default HTTPS server (catch-all). Takes the form \"namespace/name\". --disable-catch-all Disable support for catch-all Ingresses --election-id Election id to use for Ingress status updates. (default \"ingress-controller-leader\") --enable-metrics Enables the collection of NGINX metrics (default true) --enable-ssl-chain-completion Autocomplete SSL certificate chains with missing intermediate CA certificates. Certificates uploaded to Kubernetes must have the \"Authority Information Access\" X.509 v3 extension for this to succeed. --enable-ssl-passthrough Enable SSL Passthrough. --health-check-path URL path of the health check endpoint. Configured inside the NGINX status server. All requests received on the port defined by the healthz-port parameter are forwarded internally to this path. (default \"/healthz\") --health-check-timeout Time limit, in seconds, for a probe to health-check-path to succeed. (default 10) --healthz-port Port to use for the healthz endpoint. (default 10254) --http-port Port to use for servicing HTTP traffic. (default 80) --https-port Port to use for servicing HTTPS traffic. (default 443) --ingress-class Name of the ingress class this controller satisfies. The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.18.0 or higher or the annotation \"kubernetes.io/ingress.class\" (deprecated). If this parameter is not set, or set to the default value of \"nginx\", it will handle ingresses with either an empty or \"nginx\" class name. --kubeconfig Path to a kubeconfig file containing authorization and API server information. --log_backtrace_at when logging hits line file:N, emit a stack trace (default :0) --log_dir If non-empty, write log files in this directory --log_file If non-empty, use this log file --log_file_max_size Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) --logtostderr log to standard error instead of files (default true) --maxmind-edition-ids Maxmind edition ids to download GeoLite2 Databases. (default \"GeoLite2-City,GeoLite2-ASN\") --maxmind-license-key Maxmind license key to download GeoLite2 Databases. https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases --metrics-per-host Export metrics per-host (default true) --profiler-port Port to use for expose the ingress controller Go profiler when it is enabled. (default 10245) --profiling Enable profiling via web interface host:port/debug/pprof/ (default true) --publish-service Service fronting the Ingress controller. Takes the form \"namespace/name\". When used together with update-status, the controller mirrors the address of this service's endpoints to the load-balancer status of all Ingress objects it atisfies. --publish-status-address Customized address to set as the load-balancer status of Ingress objects this controller satisfies. Requires the update-status parameter. --report-node-internal-ip-address Set the load-balancer status of Ingress objects to internal Node addresses instead of external. Requires the update-status parameter. --skip_headers If true, avoid header prefixes in the log messages --skip_log_headers If true, avoid headers when opening log files --ssl-passthrough-proxy-port Port to use internally for SSL Passthrough. (default 442) --status-port Port to use for the lua HTTP endpoint configuration. (default 10246) --status-update-interval Time interval in seconds in which the status should check if an update is required. Default is 60 seconds (default 60) --stderrthreshold logs at or above this threshold go to stderr (default 2) --stream-port Port to use for the lua TCP/UDP endpoint configuration. (default 10247) --sync-period Period at which the controller forces the repopulation of its local object stores. Disabled by default. --sync-rate-limit Define the sync frequency upper limit (default 0.3) --tcp-services-configmap Name of the ConfigMap containing the definition of the TCP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port number or name. TCP ports 80 and 443 are reserved by the controller for servicing HTTP traffic. --udp-services-configmap Name of the ConfigMap containing the definition of the UDP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port name or number. --update-status Update the load-balancer status of Ingress objects this controller satisfies. Requires setting the publish-service parameter to a valid Service reference. (default true) --update-status-on-shutdown Update the load-balancer status of Ingress objects when the controller shuts down. Requires the update-status parameter. (default true) -v, --v Level number for the log level verbosity --validating-webhook The address to start an admission controller on to validate incoming ingresses. Takes the form \" :port\". If not provided, no admission controller is started. --validating-webhook-certificate The path of the validating webhook certificate PEM. --validating-webhook-key The path of the validating webhook key PEM. --version Show release information about the NGINX Ingress controller and exit. --vmodule comma-separated list of pattern=N settings for file-filtered logging --watch-namespace Namespace the controller watches for updates to Kubernetes objects. This includes Ingresses, Services and all configuration resources. All namespaces are watched if this parameter is left empty.","title":"Command line arguments"},{"location":"user-guide/cli-arguments/#command-line-arguments","text":"The following command line arguments are accepted by the Ingress controller executable. They are set in the container spec of the nginx-ingress-controller Deployment manifest Argument Description --add_dir_header If true, adds the file directory to the header --alsologtostderr log to standard error as well as files --annotations-prefix Prefix of the Ingress annotations specific to the NGINX controller. (default \"nginx.ingress.kubernetes.io\") --apiserver-host Address of the Kubernetes API server. Takes the form \"protocol://address:port\". If not specified, it is assumed the program runs inside a Kubernetes cluster and local discovery is attempted. --certificate-authority Path to a cert file for the certificate authority. This certificate is used only when the flag --apiserver-host is specified. --configmap Name of the ConfigMap containing custom global configurations for the controller. --default-backend-service Service used to serve HTTP requests not matching any known server name (catch-all). Takes the form \"namespace/name\". The controller configures NGINX to forward requests to the first port of this Service. --default-server-port Port to use for exposing the default server (catch-all). (default 8181) --default-ssl-certificate Secret containing a SSL certificate to be used by the default HTTPS server (catch-all). Takes the form \"namespace/name\". --disable-catch-all Disable support for catch-all Ingresses --election-id Election id to use for Ingress status updates. (default \"ingress-controller-leader\") --enable-metrics Enables the collection of NGINX metrics (default true) --enable-ssl-chain-completion Autocomplete SSL certificate chains with missing intermediate CA certificates. Certificates uploaded to Kubernetes must have the \"Authority Information Access\" X.509 v3 extension for this to succeed. --enable-ssl-passthrough Enable SSL Passthrough. --health-check-path URL path of the health check endpoint. Configured inside the NGINX status server. All requests received on the port defined by the healthz-port parameter are forwarded internally to this path. (default \"/healthz\") --health-check-timeout Time limit, in seconds, for a probe to health-check-path to succeed. (default 10) --healthz-port Port to use for the healthz endpoint. (default 10254) --http-port Port to use for servicing HTTP traffic. (default 80) --https-port Port to use for servicing HTTPS traffic. (default 443) --ingress-class Name of the ingress class this controller satisfies. The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.18.0 or higher or the annotation \"kubernetes.io/ingress.class\" (deprecated). If this parameter is not set, or set to the default value of \"nginx\", it will handle ingresses with either an empty or \"nginx\" class name. --kubeconfig Path to a kubeconfig file containing authorization and API server information. --log_backtrace_at when logging hits line file:N, emit a stack trace (default :0) --log_dir If non-empty, write log files in this directory --log_file If non-empty, use this log file --log_file_max_size Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) --logtostderr log to standard error instead of files (default true) --maxmind-edition-ids Maxmind edition ids to download GeoLite2 Databases. (default \"GeoLite2-City,GeoLite2-ASN\") --maxmind-license-key Maxmind license key to download GeoLite2 Databases. https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases --metrics-per-host Export metrics per-host (default true) --profiler-port Port to use for expose the ingress controller Go profiler when it is enabled. (default 10245) --profiling Enable profiling via web interface host:port/debug/pprof/ (default true) --publish-service Service fronting the Ingress controller. Takes the form \"namespace/name\". When used together with update-status, the controller mirrors the address of this service's endpoints to the load-balancer status of all Ingress objects it atisfies. --publish-status-address Customized address to set as the load-balancer status of Ingress objects this controller satisfies. Requires the update-status parameter. --report-node-internal-ip-address Set the load-balancer status of Ingress objects to internal Node addresses instead of external. Requires the update-status parameter. --skip_headers If true, avoid header prefixes in the log messages --skip_log_headers If true, avoid headers when opening log files --ssl-passthrough-proxy-port Port to use internally for SSL Passthrough. (default 442) --status-port Port to use for the lua HTTP endpoint configuration. (default 10246) --status-update-interval Time interval in seconds in which the status should check if an update is required. Default is 60 seconds (default 60) --stderrthreshold logs at or above this threshold go to stderr (default 2) --stream-port Port to use for the lua TCP/UDP endpoint configuration. (default 10247) --sync-period Period at which the controller forces the repopulation of its local object stores. Disabled by default. --sync-rate-limit Define the sync frequency upper limit (default 0.3) --tcp-services-configmap Name of the ConfigMap containing the definition of the TCP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port number or name. TCP ports 80 and 443 are reserved by the controller for servicing HTTP traffic. --udp-services-configmap Name of the ConfigMap containing the definition of the UDP services to expose. The key in the map indicates the external port to be used. The value is a reference to a Service in the form \"namespace/name:port\", where \"port\" can either be a port name or number. --update-status Update the load-balancer status of Ingress objects this controller satisfies. Requires setting the publish-service parameter to a valid Service reference. (default true) --update-status-on-shutdown Update the load-balancer status of Ingress objects when the controller shuts down. Requires the update-status parameter. (default true) -v, --v Level number for the log level verbosity --validating-webhook The address to start an admission controller on to validate incoming ingresses. Takes the form \" :port\". If not provided, no admission controller is started. --validating-webhook-certificate The path of the validating webhook certificate PEM. --validating-webhook-key The path of the validating webhook key PEM. --version Show release information about the NGINX Ingress controller and exit. --vmodule comma-separated list of pattern=N settings for file-filtered logging --watch-namespace Namespace the controller watches for updates to Kubernetes objects. This includes Ingresses, Services and all configuration resources. All namespaces are watched if this parameter is left empty.","title":"Command line arguments"},{"location":"user-guide/custom-errors/","text":"Custom errors \u00b6 When the custom-http-errors option is enabled, the Ingress controller configures NGINX so that it passes several HTTP headers down to its default-backend in case of error: Header Value X-Code HTTP status code returned by the request X-Format Value of the Accept header sent by the client X-Original-URI URI that caused the error X-Namespace Namespace where the backend Service is located X-Ingress-Name Name of the Ingress where the backend is defined X-Service-Name Name of the Service backing the backend X-Service-Port Port number of the Service backing the backend X-Request-ID Unique ID that identifies the request - same as for backend service A custom error backend can use this information to return the best possible representation of an error page. For example, if the value of the Accept header send by the client was application/json , a carefully crafted backend could decide to return the error payload as a JSON document instead of HTML. Important The custom backend is expected to return the correct HTTP status code instead of 200 . NGINX does not change the response from the custom default backend. An example of such custom backend is available inside the source repository at images/custom-error-pages . See also the Custom errors example.","title":"Custom errors"},{"location":"user-guide/custom-errors/#custom-errors","text":"When the custom-http-errors option is enabled, the Ingress controller configures NGINX so that it passes several HTTP headers down to its default-backend in case of error: Header Value X-Code HTTP status code returned by the request X-Format Value of the Accept header sent by the client X-Original-URI URI that caused the error X-Namespace Namespace where the backend Service is located X-Ingress-Name Name of the Ingress where the backend is defined X-Service-Name Name of the Service backing the backend X-Service-Port Port number of the Service backing the backend X-Request-ID Unique ID that identifies the request - same as for backend service A custom error backend can use this information to return the best possible representation of an error page. For example, if the value of the Accept header send by the client was application/json , a carefully crafted backend could decide to return the error payload as a JSON document instead of HTML. Important The custom backend is expected to return the correct HTTP status code instead of 200 . NGINX does not change the response from the custom default backend. An example of such custom backend is available inside the source repository at images/custom-error-pages . See also the Custom errors example.","title":"Custom errors"},{"location":"user-guide/default-backend/","text":"Default backend \u00b6 The default backend is a service which handles all URL paths and hosts the nginx controller doesn't understand (i.e., all the requests that are not mapped with an Ingress). Basically a default backend exposes two URLs: /healthz that returns 200 / that returns 404 Example The sub-directory /images/custom-error-pages provides an additional service for the purpose of customizing the error pages served via the default backend.","title":"Default backend"},{"location":"user-guide/default-backend/#default-backend","text":"The default backend is a service which handles all URL paths and hosts the nginx controller doesn't understand (i.e., all the requests that are not mapped with an Ingress). Basically a default backend exposes two URLs: /healthz that returns 200 / that returns 404 Example The sub-directory /images/custom-error-pages provides an additional service for the purpose of customizing the error pages served via the default backend.","title":"Default backend"},{"location":"user-guide/exposing-tcp-udp-services/","text":"Exposing TCP and UDP services \u00b6 Ingress does not support TCP or UDP services. For this reason this Ingress controller uses the flags --tcp-services-configmap and --udp-services-configmap to point to an existing config map where the key is the external port to use and the value indicates the service to expose using the format: <namespace/service name>:<service port>:[PROXY]:[PROXY] It is also possible to use a number or the name of the port. The two last fields are optional. Adding PROXY in either or both of the two last fields we can use Proxy Protocol decoding (listen) and/or encoding (proxy_pass) in a TCP service https://www.nginx.com/resources/admin-guide/proxy-protocol The next example shows how to expose the service example-go running in the namespace default in the port 8080 using the port 9000 apiVersion : v1 kind : ConfigMap metadata : name : tcp-services namespace : ingress-nginx data : 9000 : \"default/example-go:8080\" Since 1.9.13 NGINX provides UDP Load Balancing . The next example shows how to expose the service kube-dns running in the namespace kube-system in the port 53 using the port 53 apiVersion : v1 kind : ConfigMap metadata : name : udp-services namespace : ingress-nginx data : 53 : \"kube-system/kube-dns:53\" If TCP/UDP proxy support is used, then those ports need to be exposed in the Service defined for the Ingress. apiVersion : v1 kind : Service metadata : name : ingress-nginx namespace : ingress-nginx labels : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx spec : type : LoadBalancer ports : - name : http port : 80 targetPort : 80 protocol : TCP - name : https port : 443 targetPort : 443 protocol : TCP - name : proxied-tcp-9000 port : 9000 targetPort : 9000 protocol : TCP selector : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx","title":"Exposing TCP and UDP services"},{"location":"user-guide/exposing-tcp-udp-services/#exposing-tcp-and-udp-services","text":"Ingress does not support TCP or UDP services. For this reason this Ingress controller uses the flags --tcp-services-configmap and --udp-services-configmap to point to an existing config map where the key is the external port to use and the value indicates the service to expose using the format: <namespace/service name>:<service port>:[PROXY]:[PROXY] It is also possible to use a number or the name of the port. The two last fields are optional. Adding PROXY in either or both of the two last fields we can use Proxy Protocol decoding (listen) and/or encoding (proxy_pass) in a TCP service https://www.nginx.com/resources/admin-guide/proxy-protocol The next example shows how to expose the service example-go running in the namespace default in the port 8080 using the port 9000 apiVersion : v1 kind : ConfigMap metadata : name : tcp-services namespace : ingress-nginx data : 9000 : \"default/example-go:8080\" Since 1.9.13 NGINX provides UDP Load Balancing . The next example shows how to expose the service kube-dns running in the namespace kube-system in the port 53 using the port 53 apiVersion : v1 kind : ConfigMap metadata : name : udp-services namespace : ingress-nginx data : 53 : \"kube-system/kube-dns:53\" If TCP/UDP proxy support is used, then those ports need to be exposed in the Service defined for the Ingress. apiVersion : v1 kind : Service metadata : name : ingress-nginx namespace : ingress-nginx labels : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx spec : type : LoadBalancer ports : - name : http port : 80 targetPort : 80 protocol : TCP - name : https port : 443 targetPort : 443 protocol : TCP - name : proxied-tcp-9000 port : 9000 targetPort : 9000 protocol : TCP selector : app.kubernetes.io/name : ingress-nginx app.kubernetes.io/part-of : ingress-nginx","title":"Exposing TCP and UDP services"},{"location":"user-guide/external-articles/","text":"External Articles \u00b6 Pain(less) NGINX Ingress Accessing Kubernetes Pods from Outside of the Cluster Kubernetes - Redirect HTTP to HTTPS with ELB and the nginx ingress controller Configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure","title":"External Articles"},{"location":"user-guide/external-articles/#external-articles","text":"Pain(less) NGINX Ingress Accessing Kubernetes Pods from Outside of the Cluster Kubernetes - Redirect HTTP to HTTPS with ELB and the nginx ingress controller Configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure","title":"External Articles"},{"location":"user-guide/fcgi-services/","text":"Exposing FastCGI Servers \u00b6 FastCGI is a binary protocol for interfacing interactive programs with a web server . [...] (It's) aim is to reduce the overhead related to interfacing between web server and CGI programs, allowing a server to handle more web page requests per unit of time. \u2014 Wikipedia The ingress-nginx ingress controller can be used to directly expose FastCGI servers. Enabling FastCGI in your Ingress only requires setting the backend-protocol annotation to FCGI , and with a couple more annotations you can customize the way ingress-nginx handles the communication with your FastCGI server . Example Objects to Expose a FastCGI Pod \u00b6 The Pod example object below exposes port 9000 , which is the conventional FastCGI port. apiVersion : v1 kind : Pod metadata : name : example-app labels : app : example-app spec : containers : - name : example-app image : example-app:1.0 ports : - containerPort : 9000 name : fastcgi The Service object example below matches port 9000 from the Pod object above. apiVersion : v1 kind : Service metadata : name : example-service spec : selector : app : example-app ports : - port : 9000 targetPort : 9000 name : fastcgi And the Ingress and ConfigMap objects below demonstrates the supported FastCGI specific annotations (NGINX actually has 50 FastCGI directives, all of which have not been exposed in the ingress yet), and matches the service example-service , and the port named fastcgi from above. The ConfigMap must be created first for the Ingress Controller to be able to find it when the Ingress object is created, otherwise you will need to restart the Ingress Controller pods. # The ConfigMap MUST be created first for the ingress controller to be able to # find it when the Ingress object is created. apiVersion : v1 kind : ConfigMap metadata : name : example-cm data : SCRIPT_FILENAME : \"/example/index.php\" --- apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : kubernetes.io/ingress.class : \"nginx\" nginx.ingress.kubernetes.io/backend-protocol : \"FCGI\" nginx.ingress.kubernetes.io/fastcgi-index : \"index.php\" nginx.ingress.kubernetes.io/fastcgi-params-configmap : \"example-cm\" name : example-app spec : rules : - host : app.example.com http : paths : - backend : serviceName : example-service servicePort : fastcgi FastCGI Ingress Annotations \u00b6 To enable FastCGI, the nginx.ingress.kubernetes.io/backend-protocol annotation needs to be set to FCGI , which overrides the default HTTP value. nginx.ingress.kubernetes.io/backend-protocol: \"FCGI\" This enables the FastCGI mode for all paths defined in the Ingress object The nginx.ingress.kubernetes.io/fastcgi-index Annotation \u00b6 To specify an index file, the fastcgi-index annotation value can optionally be set. In the example below, the value is set to index.php . This annotation corresponds to the NGINX fastcgi_index directive . nginx.ingress.kubernetes.io/fastcgi-index: \"index.php\" The nginx.ingress.kubernetes.io/fastcgi-params-configmap Annotation \u00b6 To specify NGINX fastcgi_param directives , the fastcgi-params-configmap annotation is used, which in turn must lead to a ConfigMap object containing the NGINX fastcgi_param directives as key/values. nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-configmap\" And the ConfigMap object to specify the SCRIPT_FILENAME and HTTP_PROXY NGINX's fastcgi_param directives will look like the following: apiVersion : v1 kind : ConfigMap metadata : name : example-configmap data : SCRIPT_FILENAME : \"/example/index.php\" HTTP_PROXY : \"\" Using the namespace/ prefix is also supported, for example: nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-namespace/example-configmap\"","title":"Exposing FCGI services"},{"location":"user-guide/fcgi-services/#exposing-fastcgi-servers","text":"FastCGI is a binary protocol for interfacing interactive programs with a web server . [...] (It's) aim is to reduce the overhead related to interfacing between web server and CGI programs, allowing a server to handle more web page requests per unit of time. \u2014 Wikipedia The ingress-nginx ingress controller can be used to directly expose FastCGI servers. Enabling FastCGI in your Ingress only requires setting the backend-protocol annotation to FCGI , and with a couple more annotations you can customize the way ingress-nginx handles the communication with your FastCGI server .","title":"Exposing FastCGI Servers"},{"location":"user-guide/fcgi-services/#example-objects-to-expose-a-fastcgi-pod","text":"The Pod example object below exposes port 9000 , which is the conventional FastCGI port. apiVersion : v1 kind : Pod metadata : name : example-app labels : app : example-app spec : containers : - name : example-app image : example-app:1.0 ports : - containerPort : 9000 name : fastcgi The Service object example below matches port 9000 from the Pod object above. apiVersion : v1 kind : Service metadata : name : example-service spec : selector : app : example-app ports : - port : 9000 targetPort : 9000 name : fastcgi And the Ingress and ConfigMap objects below demonstrates the supported FastCGI specific annotations (NGINX actually has 50 FastCGI directives, all of which have not been exposed in the ingress yet), and matches the service example-service , and the port named fastcgi from above. The ConfigMap must be created first for the Ingress Controller to be able to find it when the Ingress object is created, otherwise you will need to restart the Ingress Controller pods. # The ConfigMap MUST be created first for the ingress controller to be able to # find it when the Ingress object is created. apiVersion : v1 kind : ConfigMap metadata : name : example-cm data : SCRIPT_FILENAME : \"/example/index.php\" --- apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : kubernetes.io/ingress.class : \"nginx\" nginx.ingress.kubernetes.io/backend-protocol : \"FCGI\" nginx.ingress.kubernetes.io/fastcgi-index : \"index.php\" nginx.ingress.kubernetes.io/fastcgi-params-configmap : \"example-cm\" name : example-app spec : rules : - host : app.example.com http : paths : - backend : serviceName : example-service servicePort : fastcgi","title":"Example Objects to Expose a FastCGI Pod"},{"location":"user-guide/fcgi-services/#fastcgi-ingress-annotations","text":"To enable FastCGI, the nginx.ingress.kubernetes.io/backend-protocol annotation needs to be set to FCGI , which overrides the default HTTP value. nginx.ingress.kubernetes.io/backend-protocol: \"FCGI\" This enables the FastCGI mode for all paths defined in the Ingress object","title":"FastCGI Ingress Annotations"},{"location":"user-guide/fcgi-services/#the-nginxingresskubernetesiofastcgi-index-annotation","text":"To specify an index file, the fastcgi-index annotation value can optionally be set. In the example below, the value is set to index.php . This annotation corresponds to the NGINX fastcgi_index directive . nginx.ingress.kubernetes.io/fastcgi-index: \"index.php\"","title":"The nginx.ingress.kubernetes.io/fastcgi-index Annotation"},{"location":"user-guide/fcgi-services/#the-nginxingresskubernetesiofastcgi-params-configmap-annotation","text":"To specify NGINX fastcgi_param directives , the fastcgi-params-configmap annotation is used, which in turn must lead to a ConfigMap object containing the NGINX fastcgi_param directives as key/values. nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-configmap\" And the ConfigMap object to specify the SCRIPT_FILENAME and HTTP_PROXY NGINX's fastcgi_param directives will look like the following: apiVersion : v1 kind : ConfigMap metadata : name : example-configmap data : SCRIPT_FILENAME : \"/example/index.php\" HTTP_PROXY : \"\" Using the namespace/ prefix is also supported, for example: nginx.ingress.kubernetes.io/fastcgi-params-configmap: \"example-namespace/example-configmap\"","title":"The nginx.ingress.kubernetes.io/fastcgi-params-configmap Annotation"},{"location":"user-guide/ingress-path-matching/","text":"Ingress Path Matching \u00b6 Regular Expression Support \u00b6 Important Regular expressions and wild cards are not supported in the spec.rules.host field. Full hostnames must be used. The ingress controller supports case insensitive regular expressions in the spec.rules.http.paths.path field. This can be enabled by setting the nginx.ingress.kubernetes.io/use-regex annotation to true (the default is false). Hint Kubernetes only accept expressions that comply with the RE2 engine syntax. It is possible that valid expressions accepted by NGINX cannot be used with ingress-nginx, because the PCRE library (used in NGINX) supports a wider syntax than RE2. See the RE2 Syntax documentation for differences. See the description of the use-regex annotation for more details. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/.* backend : serviceName : test servicePort : 80 The preceding ingress definition would translate to the following location block within the NGINX configuration for the test.com server: location ~* \"^/foo/.*\" { ... } Path Priority \u00b6 In NGINX, regular expressions follow a first match policy. In order to enable more accurate path matching, ingress-nginx first orders the paths by descending length before writing them to the NGINX template as location blocks. Please read the warning before using regular expressions in your ingress definitions. Example \u00b6 Let the following two ingress definitions be created: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-1 spec : rules : - host : test.com http : paths : - path : /foo/bar backend : serviceName : service1 servicePort : 80 - path : /foo/bar/ backend : serviceName : service2 servicePort : 80 apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-2 annotations : nginx.ingress.kubernetes.io/rewrite-target : /$1 spec : rules : - host : test.com http : paths : - path : /foo/bar/(.+) backend : serviceName : service3 servicePort : 80 The ingress controller would define the following location blocks, in order of descending length, within the NGINX template for the test.com server: location ~* ^/foo/bar/.+ { ... } location ~* \"^/foo/bar/\" { ... } location ~* \"^/foo/bar\" { ... } The following request URI's would match the corresponding location blocks: test.com/foo/bar/1 matches ~* ^/foo/bar/.+ and will go to service 3. test.com/foo/bar/ matches ~* ^/foo/bar/ and will go to service 2. test.com/foo/bar matches ~* ^/foo/bar and will go to service 1. IMPORTANT NOTES : If the use-regex OR rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Warning \u00b6 The following example describes a case that may inflict unwanted path matching behaviour. This case is expected and a result of NGINX's a first match policy for paths that use the regular expression location modifier . For more information about how a path is chosen, please read the following article: \"Understanding Nginx Server and Location Block Selection Algorithms\" . Example \u00b6 Let the following ingress be defined: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-3 annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/bar/bar backend : serviceName : test servicePort : 80 - path : /foo/bar/[A-Z0-9]{3} backend : serviceName : test servicePort : 80 The ingress controller would define the following location blocks (in this order) within the NGINX template for the test.com server: location ~* \"^/foo/bar/[A-Z0-9]{3}\" { ... } location ~* \"^/foo/bar/bar\" { ... } A request to test.com/foo/bar/bar would match the ^/foo/bar/[A-Z0-9]{3} location block instead of the longest EXACT matching path.","title":"Regular expressions in paths"},{"location":"user-guide/ingress-path-matching/#ingress-path-matching","text":"","title":"Ingress Path Matching"},{"location":"user-guide/ingress-path-matching/#regular-expression-support","text":"Important Regular expressions and wild cards are not supported in the spec.rules.host field. Full hostnames must be used. The ingress controller supports case insensitive regular expressions in the spec.rules.http.paths.path field. This can be enabled by setting the nginx.ingress.kubernetes.io/use-regex annotation to true (the default is false). Hint Kubernetes only accept expressions that comply with the RE2 engine syntax. It is possible that valid expressions accepted by NGINX cannot be used with ingress-nginx, because the PCRE library (used in NGINX) supports a wider syntax than RE2. See the RE2 Syntax documentation for differences. See the description of the use-regex annotation for more details. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/.* backend : serviceName : test servicePort : 80 The preceding ingress definition would translate to the following location block within the NGINX configuration for the test.com server: location ~* \"^/foo/.*\" { ... }","title":"Regular Expression Support"},{"location":"user-guide/ingress-path-matching/#path-priority","text":"In NGINX, regular expressions follow a first match policy. In order to enable more accurate path matching, ingress-nginx first orders the paths by descending length before writing them to the NGINX template as location blocks. Please read the warning before using regular expressions in your ingress definitions.","title":"Path Priority"},{"location":"user-guide/ingress-path-matching/#example","text":"Let the following two ingress definitions be created: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-1 spec : rules : - host : test.com http : paths : - path : /foo/bar backend : serviceName : service1 servicePort : 80 - path : /foo/bar/ backend : serviceName : service2 servicePort : 80 apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-2 annotations : nginx.ingress.kubernetes.io/rewrite-target : /$1 spec : rules : - host : test.com http : paths : - path : /foo/bar/(.+) backend : serviceName : service3 servicePort : 80 The ingress controller would define the following location blocks, in order of descending length, within the NGINX template for the test.com server: location ~* ^/foo/bar/.+ { ... } location ~* \"^/foo/bar/\" { ... } location ~* \"^/foo/bar\" { ... } The following request URI's would match the corresponding location blocks: test.com/foo/bar/1 matches ~* ^/foo/bar/.+ and will go to service 3. test.com/foo/bar/ matches ~* ^/foo/bar/ and will go to service 2. test.com/foo/bar matches ~* ^/foo/bar and will go to service 1. IMPORTANT NOTES : If the use-regex OR rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on.","title":"Example"},{"location":"user-guide/ingress-path-matching/#warning","text":"The following example describes a case that may inflict unwanted path matching behaviour. This case is expected and a result of NGINX's a first match policy for paths that use the regular expression location modifier . For more information about how a path is chosen, please read the following article: \"Understanding Nginx Server and Location Block Selection Algorithms\" .","title":"Warning"},{"location":"user-guide/ingress-path-matching/#example_1","text":"Let the following ingress be defined: apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : name : test-ingress-3 annotations : nginx.ingress.kubernetes.io/use-regex : \"true\" spec : rules : - host : test.com http : paths : - path : /foo/bar/bar backend : serviceName : test servicePort : 80 - path : /foo/bar/[A-Z0-9]{3} backend : serviceName : test servicePort : 80 The ingress controller would define the following location blocks (in this order) within the NGINX template for the test.com server: location ~* \"^/foo/bar/[A-Z0-9]{3}\" { ... } location ~* \"^/foo/bar/bar\" { ... } A request to test.com/foo/bar/bar would match the ^/foo/bar/[A-Z0-9]{3} location block instead of the longest EXACT matching path.","title":"Example"},{"location":"user-guide/miscellaneous/","text":"Miscellaneous \u00b6 Source IP address \u00b6 By default NGINX uses the content of the header X-Forwarded-For as the source of truth to get information about the client IP address. This works without issues in L7 if we configure the setting proxy-real-ip-cidr with the correct information of the IP/network address of trusted external load balancer. If the ingress controller is running in AWS we need to use the VPC IPv4 CIDR. Another option is to enable proxy protocol using use-proxy-protocol: \"true\" . In this mode NGINX does not use the content of the header to get the source IP address of the connection. Proxy Protocol \u00b6 If you are using a L4 proxy to forward the traffic to the NGINX pods and terminate HTTP/HTTPS there, you will lose the remote endpoint's IP address. To prevent this you could use the Proxy Protocol for forwarding traffic, this will send the connection details before forwarding the actual TCP connection itself. Amongst others ELBs in AWS and HAProxy support Proxy Protocol. Websockets \u00b6 Support for websockets is provided by NGINX out of the box. No special configuration required. The only requirement to avoid the close of connections is the increase of the values of proxy-read-timeout and proxy-send-timeout . The default value of this settings is 60 seconds . A more adequate value to support websockets is a value higher than one hour ( 3600 ). Important If the NGINX ingress controller is exposed with a service type=LoadBalancer make sure the protocol between the loadbalancer and NGINX is TCP. Optimizing TLS Time To First Byte (TTTFB) \u00b6 NGINX provides the configuration option ssl_buffer_size to allow the optimization of the TLS record size. This improves the TLS Time To First Byte (TTTFB). The default value in the Ingress controller is 4k (NGINX default is 16k ). Retries in non-idempotent methods \u00b6 Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error. The previous behavior can be restored using retry-non-idempotent=true in the configuration ConfigMap. Limitations \u00b6 Ingress rules for TLS require the definition of the field host Why endpoints and not services \u00b6 The NGINX ingress controller does not use Services to route traffic to the pods. Instead it uses the Endpoints API in order to bypass kube-proxy to allow NGINX features like session affinity and custom load balancing algorithms. It also removes some overhead, such as conntrack entries for iptables DNAT.","title":"Miscellaneous"},{"location":"user-guide/miscellaneous/#miscellaneous","text":"","title":"Miscellaneous"},{"location":"user-guide/miscellaneous/#source-ip-address","text":"By default NGINX uses the content of the header X-Forwarded-For as the source of truth to get information about the client IP address. This works without issues in L7 if we configure the setting proxy-real-ip-cidr with the correct information of the IP/network address of trusted external load balancer. If the ingress controller is running in AWS we need to use the VPC IPv4 CIDR. Another option is to enable proxy protocol using use-proxy-protocol: \"true\" . In this mode NGINX does not use the content of the header to get the source IP address of the connection.","title":"Source IP address"},{"location":"user-guide/miscellaneous/#proxy-protocol","text":"If you are using a L4 proxy to forward the traffic to the NGINX pods and terminate HTTP/HTTPS there, you will lose the remote endpoint's IP address. To prevent this you could use the Proxy Protocol for forwarding traffic, this will send the connection details before forwarding the actual TCP connection itself. Amongst others ELBs in AWS and HAProxy support Proxy Protocol.","title":"Proxy Protocol"},{"location":"user-guide/miscellaneous/#websockets","text":"Support for websockets is provided by NGINX out of the box. No special configuration required. The only requirement to avoid the close of connections is the increase of the values of proxy-read-timeout and proxy-send-timeout . The default value of this settings is 60 seconds . A more adequate value to support websockets is a value higher than one hour ( 3600 ). Important If the NGINX ingress controller is exposed with a service type=LoadBalancer make sure the protocol between the loadbalancer and NGINX is TCP.","title":"Websockets"},{"location":"user-guide/miscellaneous/#optimizing-tls-time-to-first-byte-tttfb","text":"NGINX provides the configuration option ssl_buffer_size to allow the optimization of the TLS record size. This improves the TLS Time To First Byte (TTTFB). The default value in the Ingress controller is 4k (NGINX default is 16k ).","title":"Optimizing TLS Time To First Byte (TTTFB)"},{"location":"user-guide/miscellaneous/#retries-in-non-idempotent-methods","text":"Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error. The previous behavior can be restored using retry-non-idempotent=true in the configuration ConfigMap.","title":"Retries in non-idempotent methods"},{"location":"user-guide/miscellaneous/#limitations","text":"Ingress rules for TLS require the definition of the field host","title":"Limitations"},{"location":"user-guide/miscellaneous/#why-endpoints-and-not-services","text":"The NGINX ingress controller does not use Services to route traffic to the pods. Instead it uses the Endpoints API in order to bypass kube-proxy to allow NGINX features like session affinity and custom load balancing algorithms. It also removes some overhead, such as conntrack entries for iptables DNAT.","title":"Why endpoints and not services"},{"location":"user-guide/monitoring/","text":"Prometheus and Grafana installation \u00b6 This tutorial will show you how to install Prometheus and Grafana for scraping the metrics of the NGINX Ingress controller. Important This example uses emptyDir volumes for Prometheus and Grafana. This means once the pod gets terminated you will lose all the data. Before You Begin \u00b6 The NGINX Ingress controller should already be deployed according to the deployment instructions here . Note that the kustomize bases used in this tutorial are stored in the deploy folder of the GitHub repository kubernetes/ingress-nginx . Deploy and configure Prometheus Server \u00b6 The Prometheus server must be configured so that it can discover endpoints of services. If a Prometheus server is already running in the cluster and if it is configured in a way that it can find the ingress controller pods, no extra configuration is needed. If there is no existing Prometheus server running, the rest of this tutorial will guide you through the steps needed to deploy a properly configured Prometheus server. Running the following command deploys prometheus in Kubernetes: kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/prometheus/ Prometheus Dashboard \u00b6 Open Prometheus dashboard in a web browser: kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 1m Obtain the IP address of the nodes in the running cluster: kubectl get nodes -o wide In some cases where the node only have internal IP addresses we need to execute: kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\\(@.type==\\\"InternalIP\\\"\\)].address} 10.192.0.2 10.192.0.3 10.192.0.4 Open your browser and visit the following URL: http://{node IP address}:{prometheus-svc-nodeport} to load the Prometheus Dashboard. According to the above example, this URL will be http://10.192.0.3:32630 Grafana \u00b6 kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/grafana/ kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 10m grafana NodePort 10.98.233.87 <none> 3000:31086/TCP 10m Open your browser and visit the following URL: http://{node IP address}:{grafana-svc-nodeport} to load the Grafana Dashboard. According to the above example, this URL will be http://10.192.0.3:31086 The username and password is admin After the login you can import the Grafana dashboard from official dashboards Caveats \u00b6 Wildcard ingresses \u00b6 By default request metrics are labeled with the hostname. When you have a wildcard domain ingress, then there will be no metrics for that ingress (to prevent the metrics from exploding in cardinality). To get metrics in this case you need to run the ingress controller with --metrics-per-host=false (you will lose labeling by hostname, but still have labeling by ingress).","title":"Prometheus and Grafana installation"},{"location":"user-guide/monitoring/#prometheus-and-grafana-installation","text":"This tutorial will show you how to install Prometheus and Grafana for scraping the metrics of the NGINX Ingress controller. Important This example uses emptyDir volumes for Prometheus and Grafana. This means once the pod gets terminated you will lose all the data.","title":"Prometheus and Grafana installation"},{"location":"user-guide/monitoring/#before-you-begin","text":"The NGINX Ingress controller should already be deployed according to the deployment instructions here . Note that the kustomize bases used in this tutorial are stored in the deploy folder of the GitHub repository kubernetes/ingress-nginx .","title":"Before You Begin"},{"location":"user-guide/monitoring/#deploy-and-configure-prometheus-server","text":"The Prometheus server must be configured so that it can discover endpoints of services. If a Prometheus server is already running in the cluster and if it is configured in a way that it can find the ingress controller pods, no extra configuration is needed. If there is no existing Prometheus server running, the rest of this tutorial will guide you through the steps needed to deploy a properly configured Prometheus server. Running the following command deploys prometheus in Kubernetes: kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/prometheus/","title":"Deploy and configure Prometheus Server"},{"location":"user-guide/monitoring/#prometheus-dashboard","text":"Open Prometheus dashboard in a web browser: kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 1m Obtain the IP address of the nodes in the running cluster: kubectl get nodes -o wide In some cases where the node only have internal IP addresses we need to execute: kubectl get nodes --selector=kubernetes.io/role!=master -o jsonpath={.items[*].status.addresses[?\\(@.type==\\\"InternalIP\\\"\\)].address} 10.192.0.2 10.192.0.3 10.192.0.4 Open your browser and visit the following URL: http://{node IP address}:{prometheus-svc-nodeport} to load the Prometheus Dashboard. According to the above example, this URL will be http://10.192.0.3:32630","title":"Prometheus Dashboard"},{"location":"user-guide/monitoring/#grafana","text":"kubectl apply --kustomize github.com/kubernetes/ingress-nginx/deploy/grafana/ kubectl get svc -n ingress-nginx NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default-http-backend ClusterIP 10.103.59.201 <none> 80/TCP 3d ingress-nginx NodePort 10.97.44.72 <none> 80:30100/TCP,443:30154/TCP,10254:32049/TCP 5h prometheus-server NodePort 10.98.233.86 <none> 9090:32630/TCP 10m grafana NodePort 10.98.233.87 <none> 3000:31086/TCP 10m Open your browser and visit the following URL: http://{node IP address}:{grafana-svc-nodeport} to load the Grafana Dashboard. According to the above example, this URL will be http://10.192.0.3:31086 The username and password is admin After the login you can import the Grafana dashboard from official dashboards","title":"Grafana"},{"location":"user-guide/monitoring/#caveats","text":"","title":"Caveats"},{"location":"user-guide/monitoring/#wildcard-ingresses","text":"By default request metrics are labeled with the hostname. When you have a wildcard domain ingress, then there will be no metrics for that ingress (to prevent the metrics from exploding in cardinality). To get metrics in this case you need to run the ingress controller with --metrics-per-host=false (you will lose labeling by hostname, but still have labeling by ingress).","title":"Wildcard ingresses"},{"location":"user-guide/multiple-ingress/","text":"Multiple Ingress controllers \u00b6 If you're running multiple ingress controllers, or running on a cloud provider that natively handles ingress such as GKE, you need to specify the annotation kubernetes.io/ingress.class: \"nginx\" in all ingresses that you would like the ingress-nginx controller to claim. For instance, metadata : name : foo annotations : kubernetes.io/ingress.class : \"gce\" will target the GCE controller, forcing the nginx controller to ignore it, while an annotation like metadata : name : foo annotations : kubernetes.io/ingress.class : \"nginx\" will target the nginx controller, forcing the GCE controller to ignore it. To reiterate, setting the annotation to any value which does not match a valid ingress class will force the NGINX Ingress controller to ignore your Ingress. If you are only running a single NGINX ingress controller, this can be achieved by setting the annotation to any value except \"nginx\" or an empty string. Do this if you wish to use one of the other Ingress controllers at the same time as the NGINX controller. Multiple ingress-nginx controllers \u00b6 This mechanism also provides users the ability to run multiple NGINX ingress controllers (e.g. one which serves public traffic, one which serves \"internal\" traffic). To do this, the option --ingress-class must be changed to a value unique for the cluster within the definition of the replication controller. Here is a partial example: spec : template : spec : containers : - name : nginx-ingress-internal-controller args : - /nginx-ingress-controller - '--election-id=ingress-controller-leader-internal' - '--ingress-class=nginx-internal' - '--configmap=ingress/nginx-ingress-internal-controller' Important Deploying multiple Ingress controllers, of different types (e.g., ingress-nginx & gce ), and not specifying a class annotation will result in both or all controllers fighting to satisfy the Ingress, and all of them racing to update Ingress status field in confusing ways. When running multiple ingress-nginx controllers, it will only process an unset class annotation if one of the controllers uses the default --ingress-class value (see IsValid method in internal/ingress/annotations/class/main.go ), otherwise the class annotation become required. If --ingress-class is set to the default value of nginx , the controller will monitor Ingresses with no class annotation and Ingresses with annotation class set to nginx . Use a non-default value for --ingress-class , to ensure that the controller only satisfied the specific class of Ingresses.","title":"Multiple Ingress controllers"},{"location":"user-guide/multiple-ingress/#multiple-ingress-controllers","text":"If you're running multiple ingress controllers, or running on a cloud provider that natively handles ingress such as GKE, you need to specify the annotation kubernetes.io/ingress.class: \"nginx\" in all ingresses that you would like the ingress-nginx controller to claim. For instance, metadata : name : foo annotations : kubernetes.io/ingress.class : \"gce\" will target the GCE controller, forcing the nginx controller to ignore it, while an annotation like metadata : name : foo annotations : kubernetes.io/ingress.class : \"nginx\" will target the nginx controller, forcing the GCE controller to ignore it. To reiterate, setting the annotation to any value which does not match a valid ingress class will force the NGINX Ingress controller to ignore your Ingress. If you are only running a single NGINX ingress controller, this can be achieved by setting the annotation to any value except \"nginx\" or an empty string. Do this if you wish to use one of the other Ingress controllers at the same time as the NGINX controller.","title":"Multiple Ingress controllers"},{"location":"user-guide/multiple-ingress/#multiple-ingress-nginx-controllers","text":"This mechanism also provides users the ability to run multiple NGINX ingress controllers (e.g. one which serves public traffic, one which serves \"internal\" traffic). To do this, the option --ingress-class must be changed to a value unique for the cluster within the definition of the replication controller. Here is a partial example: spec : template : spec : containers : - name : nginx-ingress-internal-controller args : - /nginx-ingress-controller - '--election-id=ingress-controller-leader-internal' - '--ingress-class=nginx-internal' - '--configmap=ingress/nginx-ingress-internal-controller' Important Deploying multiple Ingress controllers, of different types (e.g., ingress-nginx & gce ), and not specifying a class annotation will result in both or all controllers fighting to satisfy the Ingress, and all of them racing to update Ingress status field in confusing ways. When running multiple ingress-nginx controllers, it will only process an unset class annotation if one of the controllers uses the default --ingress-class value (see IsValid method in internal/ingress/annotations/class/main.go ), otherwise the class annotation become required. If --ingress-class is set to the default value of nginx , the controller will monitor Ingresses with no class annotation and Ingresses with annotation class set to nginx . Use a non-default value for --ingress-class , to ensure that the controller only satisfied the specific class of Ingresses.","title":"Multiple ingress-nginx controllers"},{"location":"user-guide/tls/","text":"TLS/HTTPS \u00b6 TLS Secrets \u00b6 Anytime we reference a TLS secret, we mean a PEM-encoded X.509, RSA (2048) secret. You can generate a self-signed certificate and private key with: $ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ${ KEY_FILE } -out ${ CERT_FILE } -subj \"/CN= ${ HOST } /O= ${ HOST } \" Then create the secret in the cluster via: kubectl create secret tls ${ CERT_NAME } --key ${ KEY_FILE } --cert ${ CERT_FILE } The resulting secret will be of type kubernetes.io/tls . Default SSL Certificate \u00b6 NGINX provides the option to configure a server as a catch-all with server_name for requests that do not match any of the configured server names. This configuration works without out-of-the-box for HTTP traffic. For HTTPS, a certificate is naturally required. For this reason the Ingress controller provides the flag --default-ssl-certificate . The secret referred to by this flag contains the default certificate to be used when accessing the catch-all server. If this flag is not provided NGINX will use a self-signed certificate. For instance, if you have a TLS secret foo-tls in the default namespace, add --default-ssl-certificate=default/foo-tls in the nginx-controller deployment. The default certificate will also be used for ingress tls: sections that do not have a secretName option. SSL Passthrough \u00b6 The --enable-ssl-passthrough flag enables the SSL Passthrough feature, which is disabled by default. This is required to enable passthrough backends in Ingress objects. Warning This feature is implemented by intercepting all traffic on the configured HTTPS port (default: 443) and handing it over to a local TCP proxy. This bypasses NGINX completely and introduces a non-negligible performance penalty. SSL Passthrough leverages SNI and reads the virtual domain from the TLS negotiation, which requires compatible clients. After a connection has been accepted by the TLS listener, it is handled by the controller itself and piped back and forth between the backend and the client. If there is no hostname matching the requested host name, the request is handed over to NGINX on the configured passthrough proxy port (default: 442), which proxies the request to the default backend. Note Unlike HTTP backends, traffic to Passthrough backends is sent to the clusterIP of the backing Service instead of individual Endpoints. HTTP Strict Transport Security \u00b6 HTTP Strict Transport Security (HSTS) is an opt-in security enhancement specified through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS. HSTS is enabled by default. To disable this behavior use hsts: \"false\" in the configuration ConfigMap . Server-side HTTPS enforcement through redirect \u00b6 By default the controller redirects HTTP clients to the HTTPS port 443 using a 308 Permanent Redirect response if TLS is enabled for that Ingress. This can be disabled globally using ssl-redirect: \"false\" in the NGINX config map , or per-Ingress with the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. Tip When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource. Automated Certificate Management with Kube-Lego \u00b6 Tip Kube-Lego has reached end-of-life and is being replaced by cert-manager . Kube-Lego automatically requests missing or expired certificates from Let's Encrypt by monitoring ingress resources and their referenced secrets. To enable this for an ingress resource you have to add an annotation: kubectl annotate ing ingress-demo kubernetes.io/tls-acme=\"true\" To setup Kube-Lego you can take a look at this full example . The first version to fully support Kube-Lego is Nginx Ingress controller 0.8. Default TLS Version and Ciphers \u00b6 To provide the most secure baseline configuration possible, nginx-ingress defaults to using TLS 1.2 and 1.3 only, with a secure set of TLS ciphers . Legacy TLS \u00b6 The default configuration, though secure, does not support some older browsers and operating systems. For instance, TLS 1.1+ is only enabled by default from Android 5.0 on. At the time of writing, May 2018, approximately 15% of Android devices are not compatible with nginx-ingress's default configuration. To change this default behavior, use a ConfigMap . A sample ConfigMap fragment to allow these older clients to connect could look something like the following (generated using the Mozilla SSL Configuration Generator) mozilla-ssl-config-old : kind: ConfigMap apiVersion: v1 metadata: name: nginx-config data: ssl-ciphers: \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA\" ssl-protocols: \"TLSv1 TLSv1.1 TLSv1.2 TLSv1.3\"","title":"TLS/HTTPS"},{"location":"user-guide/tls/#tlshttps","text":"","title":"TLS/HTTPS"},{"location":"user-guide/tls/#tls-secrets","text":"Anytime we reference a TLS secret, we mean a PEM-encoded X.509, RSA (2048) secret. You can generate a self-signed certificate and private key with: $ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ${ KEY_FILE } -out ${ CERT_FILE } -subj \"/CN= ${ HOST } /O= ${ HOST } \" Then create the secret in the cluster via: kubectl create secret tls ${ CERT_NAME } --key ${ KEY_FILE } --cert ${ CERT_FILE } The resulting secret will be of type kubernetes.io/tls .","title":"TLS Secrets"},{"location":"user-guide/tls/#default-ssl-certificate","text":"NGINX provides the option to configure a server as a catch-all with server_name for requests that do not match any of the configured server names. This configuration works without out-of-the-box for HTTP traffic. For HTTPS, a certificate is naturally required. For this reason the Ingress controller provides the flag --default-ssl-certificate . The secret referred to by this flag contains the default certificate to be used when accessing the catch-all server. If this flag is not provided NGINX will use a self-signed certificate. For instance, if you have a TLS secret foo-tls in the default namespace, add --default-ssl-certificate=default/foo-tls in the nginx-controller deployment. The default certificate will also be used for ingress tls: sections that do not have a secretName option.","title":"Default SSL Certificate"},{"location":"user-guide/tls/#ssl-passthrough","text":"The --enable-ssl-passthrough flag enables the SSL Passthrough feature, which is disabled by default. This is required to enable passthrough backends in Ingress objects. Warning This feature is implemented by intercepting all traffic on the configured HTTPS port (default: 443) and handing it over to a local TCP proxy. This bypasses NGINX completely and introduces a non-negligible performance penalty. SSL Passthrough leverages SNI and reads the virtual domain from the TLS negotiation, which requires compatible clients. After a connection has been accepted by the TLS listener, it is handled by the controller itself and piped back and forth between the backend and the client. If there is no hostname matching the requested host name, the request is handed over to NGINX on the configured passthrough proxy port (default: 442), which proxies the request to the default backend. Note Unlike HTTP backends, traffic to Passthrough backends is sent to the clusterIP of the backing Service instead of individual Endpoints.","title":"SSL Passthrough"},{"location":"user-guide/tls/#http-strict-transport-security","text":"HTTP Strict Transport Security (HSTS) is an opt-in security enhancement specified through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS. HSTS is enabled by default. To disable this behavior use hsts: \"false\" in the configuration ConfigMap .","title":"HTTP Strict Transport Security"},{"location":"user-guide/tls/#server-side-https-enforcement-through-redirect","text":"By default the controller redirects HTTP clients to the HTTPS port 443 using a 308 Permanent Redirect response if TLS is enabled for that Ingress. This can be disabled globally using ssl-redirect: \"false\" in the NGINX config map , or per-Ingress with the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. Tip When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource.","title":"Server-side HTTPS enforcement through redirect"},{"location":"user-guide/tls/#automated-certificate-management-with-kube-lego","text":"Tip Kube-Lego has reached end-of-life and is being replaced by cert-manager . Kube-Lego automatically requests missing or expired certificates from Let's Encrypt by monitoring ingress resources and their referenced secrets. To enable this for an ingress resource you have to add an annotation: kubectl annotate ing ingress-demo kubernetes.io/tls-acme=\"true\" To setup Kube-Lego you can take a look at this full example . The first version to fully support Kube-Lego is Nginx Ingress controller 0.8.","title":"Automated Certificate Management with Kube-Lego"},{"location":"user-guide/tls/#default-tls-version-and-ciphers","text":"To provide the most secure baseline configuration possible, nginx-ingress defaults to using TLS 1.2 and 1.3 only, with a secure set of TLS ciphers .","title":"Default TLS Version and Ciphers"},{"location":"user-guide/tls/#legacy-tls","text":"The default configuration, though secure, does not support some older browsers and operating systems. For instance, TLS 1.1+ is only enabled by default from Android 5.0 on. At the time of writing, May 2018, approximately 15% of Android devices are not compatible with nginx-ingress's default configuration. To change this default behavior, use a ConfigMap . A sample ConfigMap fragment to allow these older clients to connect could look something like the following (generated using the Mozilla SSL Configuration Generator) mozilla-ssl-config-old : kind: ConfigMap apiVersion: v1 metadata: name: nginx-config data: ssl-ciphers: \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA\" ssl-protocols: \"TLSv1 TLSv1.1 TLSv1.2 TLSv1.3\"","title":"Legacy TLS"},{"location":"user-guide/nginx-configuration/","text":"NGINX Configuration \u00b6 There are three ways to customize NGINX: ConfigMap : using a Configmap to set global configurations in NGINX. Annotations : use this if you want a specific configuration for a particular Ingress rule. Custom template : when more specific settings are required, like open_file_cache , adjust listen options as rcvbuf or when is not possible to change the configuration through the ConfigMap.","title":"Introduction"},{"location":"user-guide/nginx-configuration/#nginx-configuration","text":"There are three ways to customize NGINX: ConfigMap : using a Configmap to set global configurations in NGINX. Annotations : use this if you want a specific configuration for a particular Ingress rule. Custom template : when more specific settings are required, like open_file_cache , adjust listen options as rcvbuf or when is not possible to change the configuration through the ConfigMap.","title":"NGINX Configuration"},{"location":"user-guide/nginx-configuration/annotations/","text":"Annotations \u00b6 You can add these Kubernetes annotations to specific Ingress objects to customize their behavior. Tip Annotation keys and values can only be strings. Other types, such as boolean or numeric values must be quoted, i.e. \"true\" , \"false\" , \"100\" . Note The annotation prefix can be changed using the --annotations-prefix command line argument , but the default is nginx.ingress.kubernetes.io , as described in the table below. Name type nginx.ingress.kubernetes.io/app-root string nginx.ingress.kubernetes.io/affinity cookie nginx.ingress.kubernetes.io/affinity-mode \"balanced\" or \"persistent\" nginx.ingress.kubernetes.io/auth-realm string nginx.ingress.kubernetes.io/auth-secret string nginx.ingress.kubernetes.io/auth-secret-type string nginx.ingress.kubernetes.io/auth-type basic or digest nginx.ingress.kubernetes.io/auth-tls-secret string nginx.ingress.kubernetes.io/auth-tls-verify-depth number nginx.ingress.kubernetes.io/auth-tls-verify-client string nginx.ingress.kubernetes.io/auth-tls-error-page string nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/auth-url string nginx.ingress.kubernetes.io/auth-cache-key string nginx.ingress.kubernetes.io/auth-cache-duration string nginx.ingress.kubernetes.io/auth-proxy-set-headers string nginx.ingress.kubernetes.io/auth-snippet string nginx.ingress.kubernetes.io/enable-global-auth \"true\" or \"false\" nginx.ingress.kubernetes.io/backend-protocol string nginx.ingress.kubernetes.io/canary \"true\" or \"false\" nginx.ingress.kubernetes.io/canary-by-header string nginx.ingress.kubernetes.io/canary-by-header-value string nginx.ingress.kubernetes.io/canary-by-header-pattern string nginx.ingress.kubernetes.io/canary-by-cookie string nginx.ingress.kubernetes.io/canary-weight number nginx.ingress.kubernetes.io/client-body-buffer-size string nginx.ingress.kubernetes.io/configuration-snippet string nginx.ingress.kubernetes.io/custom-http-errors []int nginx.ingress.kubernetes.io/default-backend string nginx.ingress.kubernetes.io/enable-cors \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-allow-origin string nginx.ingress.kubernetes.io/cors-allow-methods string nginx.ingress.kubernetes.io/cors-allow-headers string nginx.ingress.kubernetes.io/cors-allow-credentials \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-max-age number nginx.ingress.kubernetes.io/force-ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/from-to-www-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/http2-push-preload \"true\" or \"false\" nginx.ingress.kubernetes.io/limit-connections number nginx.ingress.kubernetes.io/limit-rps number nginx.ingress.kubernetes.io/permanent-redirect string nginx.ingress.kubernetes.io/permanent-redirect-code number nginx.ingress.kubernetes.io/temporal-redirect string nginx.ingress.kubernetes.io/proxy-body-size string nginx.ingress.kubernetes.io/proxy-cookie-domain string nginx.ingress.kubernetes.io/proxy-cookie-path string nginx.ingress.kubernetes.io/proxy-connect-timeout number nginx.ingress.kubernetes.io/proxy-send-timeout number nginx.ingress.kubernetes.io/proxy-read-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream string nginx.ingress.kubernetes.io/proxy-next-upstream-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream-tries number nginx.ingress.kubernetes.io/proxy-request-buffering string nginx.ingress.kubernetes.io/proxy-redirect-from string nginx.ingress.kubernetes.io/proxy-redirect-to string nginx.ingress.kubernetes.io/proxy-http-version \"1.0\" or \"1.1\" nginx.ingress.kubernetes.io/proxy-ssl-secret string nginx.ingress.kubernetes.io/proxy-ssl-ciphers string nginx.ingress.kubernetes.io/proxy-ssl-name string nginx.ingress.kubernetes.io/proxy-ssl-protocols string nginx.ingress.kubernetes.io/proxy-ssl-verify string nginx.ingress.kubernetes.io/proxy-ssl-verify-depth number nginx.ingress.kubernetes.io/proxy-ssl-server-name string nginx.ingress.kubernetes.io/enable-rewrite-log \"true\" or \"false\" nginx.ingress.kubernetes.io/rewrite-target URI nginx.ingress.kubernetes.io/satisfy string nginx.ingress.kubernetes.io/server-alias string nginx.ingress.kubernetes.io/server-snippet string nginx.ingress.kubernetes.io/service-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-name string nginx.ingress.kubernetes.io/session-cookie-path string nginx.ingress.kubernetes.io/session-cookie-change-on-failure \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-samesite string nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-passthrough \"true\" or \"false\" nginx.ingress.kubernetes.io/upstream-hash-by string nginx.ingress.kubernetes.io/x-forwarded-prefix string nginx.ingress.kubernetes.io/load-balance string nginx.ingress.kubernetes.io/upstream-vhost string nginx.ingress.kubernetes.io/whitelist-source-range CIDR nginx.ingress.kubernetes.io/proxy-buffering string nginx.ingress.kubernetes.io/proxy-buffers-number number nginx.ingress.kubernetes.io/proxy-buffer-size string nginx.ingress.kubernetes.io/proxy-max-temp-file-size string nginx.ingress.kubernetes.io/ssl-ciphers string nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers \"true\" or \"false\" nginx.ingress.kubernetes.io/connection-proxy-header string nginx.ingress.kubernetes.io/enable-access-log \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-opentracing \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-influxdb \"true\" or \"false\" nginx.ingress.kubernetes.io/influxdb-measurement string nginx.ingress.kubernetes.io/influxdb-port string nginx.ingress.kubernetes.io/influxdb-host string nginx.ingress.kubernetes.io/influxdb-server-name string nginx.ingress.kubernetes.io/use-regex bool nginx.ingress.kubernetes.io/enable-modsecurity bool nginx.ingress.kubernetes.io/enable-owasp-core-rules bool nginx.ingress.kubernetes.io/modsecurity-transaction-id string nginx.ingress.kubernetes.io/modsecurity-snippet string nginx.ingress.kubernetes.io/mirror-request-body string nginx.ingress.kubernetes.io/mirror-target string Canary \u00b6 In some cases, you may want to \"canary\" a new set of changes by sending a small number of requests to a different service than the production service. The canary annotation enables the Ingress spec to act as an alternative service for requests to route to depending on the rules applied. The following annotations to configure canary can be enabled after nginx.ingress.kubernetes.io/canary: \"true\" is set: nginx.ingress.kubernetes.io/canary-by-header : The header to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to always , it will be routed to the canary. When the header is set to never , it will never be routed to the canary. For any other value, the header will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-by-header-value : The header value to match for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to this value, it will be routed to the canary. For any other header value, the header will be ignored and the request compared against the other canary rules by precedence. This annotation has to be used together with . The annotation is an extension of the nginx.ingress.kubernetes.io/canary-by-header to allow customizing the header value instead of using hardcoded values. It doesn't have any effect if the nginx.ingress.kubernetes.io/canary-by-header annotation is not defined. nginx.ingress.kubernetes.io/canary-by-header-pattern : This works the same way as canary-by-header-value except it does PCRE Regex matching. Note that when canary-by-header-value is set this annotation will be ignored. When the given Regex causes error during request processing, the request will be considered as not matching. nginx.ingress.kubernetes.io/canary-by-cookie : The cookie to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the cookie value is set to always , it will be routed to the canary. When the cookie is set to never , it will never be routed to the canary. For any other value, the cookie will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-weight : The integer based (0 - 100) percent of random requests that should be routed to the service specified in the canary Ingress. A weight of 0 implies that no requests will be sent to the service in the Canary ingress by this canary rule. A weight of 100 means implies all requests will be sent to the alternative service specified in the Ingress. Canary rules are evaluated in order of precedence. Precedence is as follows: canary-by-header -> canary-by-cookie -> canary-weight Note that when you mark an ingress as canary, then all the other non-canary annotations will be ignored (inherited from the corresponding main ingress) except nginx.ingress.kubernetes.io/load-balance and nginx.ingress.kubernetes.io/upstream-hash-by . Known Limitations Currently a maximum of one canary ingress can be applied per Ingress rule. Rewrite \u00b6 In some scenarios the exposed URL in the backend service differs from the specified path in the Ingress rule. Without a rewrite any request will return 404. Set the annotation nginx.ingress.kubernetes.io/rewrite-target to the path expected by the service. If the Application Root is exposed in a different path and needs to be redirected, set the annotation nginx.ingress.kubernetes.io/app-root to redirect requests for / . Example Please check the rewrite example. Session Affinity \u00b6 The annotation nginx.ingress.kubernetes.io/affinity enables and sets the affinity type in all Upstreams of an Ingress. This way, a request will always be directed to the same upstream server. The only affinity type available for NGINX is cookie . The annotation nginx.ingress.kubernetes.io/affinity-mode defines the stickyness of a session. Setting this to balanced (default) will redistribute some sessions if a deployment gets scaled up, therefore rebalancing the load on the servers. Setting this to persistent will not rebalance sessions to new servers, therefore providing maximum stickyness. Attention If more than one Ingress is defined for a host and at least one Ingress uses nginx.ingress.kubernetes.io/affinity: cookie , then only paths on the Ingress using nginx.ingress.kubernetes.io/affinity will use session cookie affinity. All paths defined on other Ingresses for the host will be load balanced through the random selection of a backend server. Example Please check the affinity example. Cookie affinity \u00b6 If you use the cookie affinity type you can also specify the name of the cookie that will be used to route the requests with the annotation nginx.ingress.kubernetes.io/session-cookie-name . The default is to create a cookie named 'INGRESSCOOKIE'. The NGINX annotation nginx.ingress.kubernetes.io/session-cookie-path defines the path that will be set on the cookie. This is optional unless the annotation nginx.ingress.kubernetes.io/use-regex is set to true; Session cookie paths do not support regex. Use nginx.ingress.kubernetes.io/session-cookie-samesite to apply a SameSite attribute to the sticky cookie. Browser accepted values are None , Lax , and Strict . Some browsers reject cookies with SameSite=None , including those created before the SameSite=None specification (e.g. Chrome 5X). Other browsers mistakenly treat SameSite=None cookies as SameSite=Strict (e.g. Safari running on OSX 14). To omit SameSite=None from browsers with these incompatibilities, add the annotation nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none: \"true\" . Authentication \u00b6 It is possible to add authentication by adding additional annotations in the Ingress rule. The source of the authentication is a secret that contains usernames and passwords. The annotations are: nginx.ingress.kubernetes.io/auth-type: [basic|digest] Indicates the HTTP Authentication Type: Basic or Digest Access Authentication . nginx.ingress.kubernetes.io/auth-secret: secretName The name of the Secret that contains the usernames and passwords which are granted access to the path s defined in the Ingress rules. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-secret-type: [auth-file|auth-map] The auth-secret can have two forms: auth-file - default, an htpasswd file in the key auth within the secret auth-map - the keys of the secret are the usernames, and the values are the hashed passwords nginx.ingress.kubernetes.io/auth-realm: \"realm string\" Example Please check the auth example. Custom NGINX upstream hashing \u00b6 NGINX supports load balancing by client-server mapping based on consistent hashing for a given key. The key can contain text, variables or any combination thereof. This feature allows for request stickiness other than client IP or cookies. The ketama consistent hashing method will be used which ensures only a few keys would be remapped to different servers on upstream group changes. There is a special mode of upstream hashing called subset. In this mode, upstream servers are grouped into subsets, and stickiness works by mapping keys to a subset instead of individual upstream servers. Specific server is chosen uniformly at random from the selected sticky subset. It provides a balance between stickiness and load distribution. To enable consistent hashing for a backend: nginx.ingress.kubernetes.io/upstream-hash-by : the nginx variable, text value or any combination thereof to use for consistent hashing. For example: nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri$host\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"${request_uri}-text-value\" to consistently hash upstream requests by the current request URI. \"subset\" hashing can be enabled setting nginx.ingress.kubernetes.io/upstream-hash-by-subset : \"true\". This maps requests to subset of nodes instead of a single one. upstream-hash-by-subset-size determines the size of each subset (default 3). Please check the chashsubset example. Custom NGINX load balancing \u00b6 This is similar to load-balance in ConfigMap , but configures load balancing algorithm per ingress. Note that nginx.ingress.kubernetes.io/upstream-hash-by takes preference over this. If this and nginx.ingress.kubernetes.io/upstream-hash-by are not set then we fallback to using globally configured load balancing algorithm. Custom NGINX upstream vhost \u00b6 This configuration setting allows you to control the value for host in the following statement: proxy_set_header Host $host , which forms part of the location block. This is useful if you need to call the upstream server by something other than $host . Client Certificate Authentication \u00b6 It is possible to enable Client Certificate Authentication using additional annotations in Ingress Rule. The annotations are: nginx.ingress.kubernetes.io/auth-tls-secret: secretName : The name of the Secret that contains the full Certificate Authority chain ca.crt that is enabled to authenticate against this Ingress. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-tls-verify-depth : The validation depth between the provided client certificate and the Certification Authority chain. nginx.ingress.kubernetes.io/auth-tls-verify-client : Enables verification of client certificates. nginx.ingress.kubernetes.io/auth-tls-error-page : The URL/Page that user should be redirected in case of a Certificate Authentication Error nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream : Indicates if the received certificates should be passed or not to the upstream server. By default this is disabled. Example Please check the client-certs example. Attention TLS with Client Authentication is not possible in Cloudflare and might result in unexpected behavior. Cloudflare only allows Authenticated Origin Pulls and is required to use their own certificate: https://blog.cloudflare.com/protecting-the-origin-with-tls-authenticated-origin-pulls/ Only Authenticated Origin Pulls are allowed and can be configured by following their tutorial: https://support.cloudflare.com/hc/en-us/articles/204494148-Setting-up-NGINX-to-use-TLS-Authenticated-Origin-Pulls Backend Certificate Authentication \u00b6 It is possible to authenticate to a proxied HTTPS backend with certificate using additional annotations in Ingress Rule. nginx.ingress.kubernetes.io/proxy-ssl-secret: secretName : Specifies a Secret with the certificate tls.crt , key tls.key in PEM format used for authentication to a proxied HTTPS server. It should also contain trusted CA certificates ca.crt in PEM format used to verify the certificate of the proxied HTTPS server. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/proxy-ssl-verify : Enables or disables verification of the proxied HTTPS server certificate. (default: off) nginx.ingress.kubernetes.io/proxy-ssl-verify-depth : Sets the verification depth in the proxied HTTPS server certificates chain. (default: 1) nginx.ingress.kubernetes.io/proxy-ssl-ciphers : Specifies the enabled ciphers for requests to a proxied HTTPS server. The ciphers are specified in the format understood by the OpenSSL library. nginx.ingress.kubernetes.io/proxy-ssl-name : Allows to set proxy_ssl_name . This allows overriding the server name used to verify the certificate of the proxied HTTPS server. This value is also passed through SNI when a connection is established to the proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-protocols : Enables the specified protocols for requests to a proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-server-name : Enables passing of the server name through TLS Server Name Indication extension (SNI, RFC 6066) when establishing a connection with the proxied HTTPS server. Configuration snippet \u00b6 Using this annotation you can add additional configuration to the NGINX location. For example: nginx.ingress.kubernetes.io/configuration-snippet : | more_set_headers \"Request-Id: $req_id\"; Custom HTTP Errors \u00b6 Like the custom-http-errors value in the ConfigMap, this annotation will set NGINX proxy-intercept-errors , but only for the NGINX location associated with this ingress. If a default backend annotation is specified on the ingress, the errors will be routed to that annotation's default backend service (instead of the global default backend). Different ingresses can specify different sets of error codes. Even if multiple ingress objects share the same hostname, this annotation can be used to intercept different error codes for each ingress (for example, different error codes to be intercepted for different paths on the same hostname, if each path is on a different ingress). If custom-http-errors is also specified globally, the error values specified in this annotation will override the global value for the given ingress' hostname and path. Example usage: nginx.ingress.kubernetes.io/custom-http-errors: \"404,415\" Default Backend \u00b6 This annotation is of the form nginx.ingress.kubernetes.io/default-backend: <svc name> to specify a custom default backend. This <svc name> is a reference to a service inside of the same namespace in which you are applying this annotation. This annotation overrides the global default backend. This service will be handle the response when the service in the Ingress rule does not have active endpoints. It will also handle the error responses if both this annotation and the custom-http-errors annotation is set. Enable CORS \u00b6 To enable Cross-Origin Resource Sharing (CORS) in an Ingress rule, add the annotation nginx.ingress.kubernetes.io/enable-cors: \"true\" . This will add a section in the server location enabling this functionality. CORS can be controlled with the following annotations: nginx.ingress.kubernetes.io/cors-allow-methods controls which methods are accepted. This is a multi-valued field, separated by ',' and accepts only letters (upper and lower case). Default: GET, PUT, POST, DELETE, PATCH, OPTIONS Example: nginx.ingress.kubernetes.io/cors-allow-methods: \"PUT, GET, POST, OPTIONS\" nginx.ingress.kubernetes.io/cors-allow-headers controls which headers are accepted. This is a multi-valued field, separated by ',' and accepts letters, numbers, _ and -. Default: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization Example: nginx.ingress.kubernetes.io/cors-allow-headers: \"X-Forwarded-For, X-app123-XPTO\" nginx.ingress.kubernetes.io/cors-allow-origin controls what's the accepted Origin for CORS. This is a single field value, with the following format: http(s)://origin-site.com or http(s)://origin-site.com:port Default: * Example: nginx.ingress.kubernetes.io/cors-allow-origin: \"https://origin-site.com:4443\" nginx.ingress.kubernetes.io/cors-allow-credentials controls if credentials can be passed during CORS operations. Default: true Example: nginx.ingress.kubernetes.io/cors-allow-credentials: \"false\" nginx.ingress.kubernetes.io/cors-max-age controls how long preflight requests can be cached. Default: 1728000 Example: nginx.ingress.kubernetes.io/cors-max-age: 600 Note For more information please see https://enable-cors.org HTTP2 Push Preload. \u00b6 Enables automatic conversion of preload links specified in the \u201cLink\u201d response header fields into push requests. Example nginx.ingress.kubernetes.io/http2-push-preload: \"true\" Server Alias \u00b6 Allows the definition of one or more aliases in the server definition of the NGINX configuration using the annotation nginx.ingress.kubernetes.io/server-alias: \"<alias 1>,<alias 2>\" . This will create a server with the same configuration, but adding new values to the server_name directive. Note A server-alias name cannot conflict with the hostname of an existing server. If it does, the server-alias annotation will be ignored. If a server-alias is created and later a new server with the same hostname is created, the new server configuration will take place over the alias configuration. For more information please see the server_name documentation . Server snippet \u00b6 Using the annotation nginx.ingress.kubernetes.io/server-snippet it is possible to add custom configuration in the server configuration block. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : nginx.ingress.kubernetes.io/server-snippet : | set $agentflag 0; if ($http_user_agent ~* \"(Mobile)\" ){ set $agentflag 1; } if ( $agentflag = 1 ) { return 301 https://m.example.com; } Attention This annotation can be used only once per host. Client Body Buffer Size \u00b6 Sets buffer size for reading client request body per location. In case the request body is larger than the buffer, the whole body or only its part is written to a temporary file. By default, buffer size is equal to two memory pages. This is 8K on x86, other 32-bit platforms, and x86-64. It is usually 16K on other 64-bit platforms. This annotation is applied to each location provided in the ingress rule. Note The annotation value must be given in a format understood by Nginx. Example nginx.ingress.kubernetes.io/client-body-buffer-size: \"1000\" # 1000 bytes nginx.ingress.kubernetes.io/client-body-buffer-size: 1k # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1K # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1m # 1 megabyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1M # 1 megabyte For more information please see http://nginx.org External Authentication \u00b6 To use an existing service that provides authentication the Ingress rule can be annotated with nginx.ingress.kubernetes.io/auth-url to indicate the URL where the HTTP request should be sent. nginx.ingress.kubernetes.io/auth-url : \"URL to the authentication service\" Additionally it is possible to set: nginx.ingress.kubernetes.io/auth-method : <Method> to specify the HTTP method to use. nginx.ingress.kubernetes.io/auth-signin : <SignIn_URL> to specify the location of the error page. nginx.ingress.kubernetes.io/auth-response-headers : <Response_Header_1, ..., Response_Header_n> to specify headers to pass to backend once authentication request completes. nginx.ingress.kubernetes.io/auth-proxy-set-headers : <ConfigMap> the name of a ConfigMap that specifies headers to pass to the authentication service nginx.ingress.kubernetes.io/auth-request-redirect : <Request_Redirect_URL> to specify the X-Auth-Request-Redirect header value. nginx.ingress.kubernetes.io/auth-cache-key : <Cache_Key> this enables caching for auth requests. specify a lookup key for auth responses. e.g. $remote_user$http_authorization . Each server and location has it's own keyspace. Hence a cached response is only valid on a per-server and per-location basis. nginx.ingress.kubernetes.io/auth-cache-duration : <Cache_duration> to specify a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . nginx.ingress.kubernetes.io/auth-snippet : <Auth_Snippet> to specify a custom snippet to use with external authentication, e.g. nginx.ingress.kubernetes.io/auth-url : http://foo.com/external-auth nginx.ingress.kubernetes.io/auth-snippet : | proxy_set_header Foo-Header 42; Note: nginx.ingress.kubernetes.io/auth-snippet is an optional annotation. However, it may only be used in conjunction with nginx.ingress.kubernetes.io/auth-url and will be ignored if nginx.ingress.kubernetes.io/auth-url is not set Example Please check the external-auth example. Global External Authentication \u00b6 By default the controller redirects all requests to an existing service that provides authentication if global-auth-url is set in the NGINX ConfigMap. If you want to disable this behavior for that ingress, you can use enable-global-auth: \"false\" in the NGINX ConfigMap. nginx.ingress.kubernetes.io/enable-global-auth : indicates if GlobalExternalAuth configuration should be applied or not to this Ingress rule. Default values is set to \"true\" . Note For more information please see global-auth-url . Rate limiting \u00b6 These annotations define limits on connections and transmission rates. These can be used to mitigate DDoS Attacks . nginx.ingress.kubernetes.io/limit-connections : number of concurrent connections allowed from a single IP address. A 503 error is returned when exceeding this limit. nginx.ingress.kubernetes.io/limit-rps : number of requests accepted from a given IP each second. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rpm : number of requests accepted from a given IP each minute. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rate-after : initial number of kilobytes after which the further transmission of a response to a given connection will be rate limited. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-rate : number of kilobytes per second allowed to send to a given connection. The zero value disables rate limiting. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-whitelist : client IP source ranges to be excluded from rate-limiting. The value is a comma separated list of CIDRs. If you specify multiple annotations in a single Ingress rule, limits are applied in the order limit-connections , limit-rpm , limit-rps . To configure settings globally for all Ingress rules, the limit-rate-after and limit-rate values may be set in the NGINX ConfigMap . The value set in an Ingress annotation will override the global setting. The client IP address will be set based on the use of PROXY protocol or from the X-Forwarded-For header value when use-forwarded-headers is enabled. Permanent Redirect \u00b6 This annotation allows to return a permanent redirect instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/permanent-redirect: https://www.google.com would redirect everything to Google. Permanent Redirect Code \u00b6 This annotation allows you to modify the status code used for permanent redirects. For example nginx.ingress.kubernetes.io/permanent-redirect-code: '308' would return your permanent-redirect with a 308. Temporal Redirect \u00b6 This annotation allows you to return a temporal redirect (Return Code 302) instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/temporal-redirect: https://www.google.com would redirect everything to Google with a Return Code of 302 (Moved Temporarily) SSL Passthrough \u00b6 The annotation nginx.ingress.kubernetes.io/ssl-passthrough instructs the controller to send TLS connections directly to the backend instead of letting NGINX decrypt the communication. See also TLS/HTTPS in the User guide. Note SSL Passthrough is disabled by default and requires starting the controller with the --enable-ssl-passthrough flag. Attention Because SSL Passthrough works on layer 4 of the OSI model (TCP) and not on the layer 7 (HTTP), using SSL Passthrough invalidates all the other annotations set on an Ingress object. Service Upstream \u00b6 By default the NGINX ingress controller uses a list of all endpoints (Pod IP/port) in the NGINX upstream configuration. The nginx.ingress.kubernetes.io/service-upstream annotation disables that behavior and instead uses a single upstream in NGINX, the service's Cluster IP and port. This can be desirable for things like zero-downtime deployments as it reduces the need to reload NGINX configuration when Pods come up and down. See issue #257 . Known Issues \u00b6 If the service-upstream annotation is specified the following things should be taken into consideration: Sticky Sessions will not work as only round-robin load balancing is supported. The proxy_next_upstream directive will not have any effect meaning on error the request will not be dispatched to another upstream. Server-side HTTPS enforcement through redirect \u00b6 By default the controller redirects (308) to HTTPS if TLS is enabled for that ingress. If you want to disable this behavior globally, you can use ssl-redirect: \"false\" in the NGINX ConfigMap . To configure this feature for specific ingress resources, you can use the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource. Redirect from/to www \u00b6 In some scenarios is required to redirect from www.domain.com to domain.com or vice versa. To enable this feature use the annotation nginx.ingress.kubernetes.io/from-to-www-redirect: \"true\" Attention If at some point a new Ingress is created with a host equal to one of the options (like domain.com ) the annotation will be omitted. Attention For HTTPS to HTTPS redirects is mandatory the SSL Certificate defined in the Secret, located in the TLS section of Ingress, contains both FQDN in the common name of the certificate. Whitelist source range \u00b6 You can specify allowed client IP source ranges through the nginx.ingress.kubernetes.io/whitelist-source-range annotation. The value is a comma separated list of CIDRs , e.g. 10.0.0.0/24,172.10.0.1 . To configure this setting globally for all Ingress rules, the whitelist-source-range value may be set in the NGINX ConfigMap . Note Adding an annotation to an Ingress rule overrides any global restriction. Custom timeouts \u00b6 Using the configuration configmap it is possible to set the default global timeout for connections to the upstream servers. In some scenarios is required to have different values. To allow this we provide annotations that allows this customization: nginx.ingress.kubernetes.io/proxy-connect-timeout nginx.ingress.kubernetes.io/proxy-send-timeout nginx.ingress.kubernetes.io/proxy-read-timeout nginx.ingress.kubernetes.io/proxy-next-upstream nginx.ingress.kubernetes.io/proxy-next-upstream-timeout nginx.ingress.kubernetes.io/proxy-next-upstream-tries nginx.ingress.kubernetes.io/proxy-request-buffering Proxy redirect \u00b6 With the annotations nginx.ingress.kubernetes.io/proxy-redirect-from and nginx.ingress.kubernetes.io/proxy-redirect-to it is possible to set the text that should be changed in the Location and Refresh header fields of a proxied server response Setting \"off\" or \"default\" in the annotation nginx.ingress.kubernetes.io/proxy-redirect-from disables nginx.ingress.kubernetes.io/proxy-redirect-to , otherwise, both annotations must be used in unison. Note that each annotation must be a string without spaces. By default the value of each annotation is \"off\". Custom max body size \u00b6 For NGINX, an 413 error will be returned to the client when the size in a request exceeds the maximum allowed size of the client request body. This size can be configured by the parameter client_max_body_size . To configure this setting globally for all Ingress rules, the proxy-body-size value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-body-size : 8m Proxy cookie domain \u00b6 Sets a text that should be changed in the domain attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-domain value may be set in the NGINX ConfigMap . Proxy cookie path \u00b6 Sets a text that should be changed in the path attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-path value may be set in the NGINX ConfigMap . Proxy buffering \u00b6 Enable or disable proxy buffering proxy_buffering . By default proxy buffering is disabled in the NGINX config. To configure this setting globally for all Ingress rules, the proxy-buffering value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-buffering : \"on\" Proxy buffers Number \u00b6 Sets the number of the buffers in proxy_buffers used for reading the first part of the response received from the proxied server. By default proxy buffers number is set as 4 To configure this setting globally, set proxy-buffers-number in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffers-number : \"4\" Proxy buffer size \u00b6 Sets the size of the buffer proxy_buffer_size used for reading the first part of the response received from the proxied server. By default proxy buffer size is set as \"4k\" To configure this setting globally, set proxy-buffer-size in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffer-size : \"8k\" Proxy max temp file size \u00b6 When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file. This directive sets the maximum size of the temporary file setting the proxy_max_temp_file_size . The size of data written to the temporary file at a time is set by the proxy_temp_file_write_size directive. The zero value disables buffering of responses to temporary files. To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-max-temp-file-size : \"1024m\" Proxy HTTP version \u00b6 Using this annotation sets the proxy_http_version that the Nginx reverse proxy will use to communicate with the backend. By default this is set to \"1.1\". nginx.ingress.kubernetes.io/proxy-http-version : \"1.0\" SSL ciphers \u00b6 Specifies the enabled ciphers . Using this annotation will set the ssl_ciphers directive at the server level. This configuration is active for all the paths in the host. nginx.ingress.kubernetes.io/ssl-ciphers : \"ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP\" The following annotation will set the ssl_prefer_server_ciphers directive at the server level. This configuration specifies that server ciphers should be preferred over client ciphers when using the SSLv3 and TLS protocols. nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers : \"true\" Connection proxy header \u00b6 Using this annotation will override the default connection header set by NGINX. To use custom values in an Ingress rule, define the annotation: nginx.ingress.kubernetes.io/connection-proxy-header : \"keep-alive\" Enable Access Log \u00b6 Access logs are enabled by default, but in some scenarios access logs might be required to be disabled for a given ingress. To do this, use the annotation: nginx.ingress.kubernetes.io/enable-access-log : \"false\" Enable Rewrite Log \u00b6 Rewrite logs are not enabled by default. In some scenarios it could be required to enable NGINX rewrite logs. Note that rewrite logs are sent to the error_log file at the notice level. To enable this feature use the annotation: nginx.ingress.kubernetes.io/enable-rewrite-log : \"true\" Enable Opentracing \u00b6 Opentracing can be enabled or disabled globally through the ConfigMap but this will sometimes need to be overridden to enable it or disable it for a specific ingress (e.g. to turn off tracing of external health check endpoints) nginx.ingress.kubernetes.io/enable-opentracing : \"true\" X-Forwarded-Prefix Header \u00b6 To add the non-standard X-Forwarded-Prefix header to the upstream request with a string value, the following annotation can be used: nginx.ingress.kubernetes.io/x-forwarded-prefix : \"/path\" ModSecurity \u00b6 ModSecurity is an OpenSource Web Application firewall. It can be enabled for a particular set of ingress locations. The ModSecurity module must first be enabled by enabling ModSecurity in the ConfigMap . Note this will enable ModSecurity for all paths, and each path must be disabled manually. It can be enabled using the following annotation: nginx.ingress.kubernetes.io/enable-modsecurity : \"true\" ModSecurity will run in \"Detection-Only\" mode using the recommended configuration . You can enable the OWASP Core Rule Set by setting the following annotation: nginx.ingress.kubernetes.io/enable-owasp-core-rules : \"true\" You can pass transactionIDs from nginx by setting up the following: nginx.ingress.kubernetes.io/modsecurity-transaction-id : \"$request_id\" You can also add your own set of modsecurity rules via a snippet: nginx.ingress.kubernetes.io/modsecurity-snippet : | SecRuleEngine On SecDebugLog /tmp/modsec_debug.log Note: If you use both enable-owasp-core-rules and modsecurity-snippet annotations together, only the modsecurity-snippet will take effect. If you wish to include the OWASP Core Rule Set or recommended configuration simply use the include statement: nginx 0.24.1 and below nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf Include /etc/nginx/modsecurity/modsecurity.conf nginx 0.25.0 and above nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf InfluxDB \u00b6 Using influxdb-* annotations we can monitor requests passing through a Location by sending them to an InfluxDB backend exposing the UDP socket using the nginx-influxdb-module . nginx.ingress.kubernetes.io/enable-influxdb : \"true\" nginx.ingress.kubernetes.io/influxdb-measurement : \"nginx-reqs\" nginx.ingress.kubernetes.io/influxdb-port : \"8089\" nginx.ingress.kubernetes.io/influxdb-host : \"127.0.0.1\" nginx.ingress.kubernetes.io/influxdb-server-name : \"nginx-ingress\" For the influxdb-host parameter you have two options: Use an InfluxDB server configured with the UDP protocol enabled. Deploy Telegraf as a sidecar proxy to the Ingress controller configured to listen UDP with the socket listener input and to write using anyone of the outputs plugins like InfluxDB, Apache Kafka, Prometheus, etc.. (recommended) It's important to remember that there's no DNS resolver at this stage so you will have to configure an ip address to nginx.ingress.kubernetes.io/influxdb-host . If you deploy Influx or Telegraf as sidecar (another container in the same pod) this becomes straightforward since you can directly use 127.0.0.1 . Backend Protocol \u00b6 Using backend-protocol annotations is possible to indicate how NGINX should communicate with the backend service. (Replaces secure-backends in older versions) Valid Values: HTTP, HTTPS, GRPC, GRPCS, AJP and FCGI By default NGINX uses HTTP . Example: nginx.ingress.kubernetes.io/backend-protocol : \"HTTPS\" Use Regex \u00b6 Attention When using this annotation with the NGINX annotation nginx.ingress.kubernetes.io/affinity of type cookie , nginx.ingress.kubernetes.io/session-cookie-path must be also set; Session cookie paths do not support regex. Using the nginx.ingress.kubernetes.io/use-regex annotation will indicate whether or not the paths defined on an Ingress use regular expressions. The default value is false . The following will indicate that regular expression paths are being used: nginx.ingress.kubernetes.io/use-regex : \"true\" The following will indicate that regular expression paths are not being used: nginx.ingress.kubernetes.io/use-regex : \"false\" When this annotation is set to true , the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Additionally, if the rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Please read about ingress path matching before using this modifier. Satisfy \u00b6 By default, a request would need to satisfy all authentication requirements in order to be allowed. By using this annotation, requests that satisfy either any or all authentication requirements are allowed, based on the configuration value. nginx.ingress.kubernetes.io/satisfy : \"any\" Mirror \u00b6 Enables a request to be mirrored to a mirror backend. Responses by mirror backends are ignored. This feature is useful, to see how requests will react in \"test\" backends. The mirror backend can be set by applying: nginx.ingress.kubernetes.io/mirror-target : https://test.env.com/$request_uri By default the request-body is sent to the mirror backend, but can be turned off by applying: nginx.ingress.kubernetes.io/mirror-request-body : \"off\" Note: The mirror directive will be applied to all paths within the ingress resource. The request sent to the mirror is linked to the original request. If you have a slow mirror backend, then the original request will throttle. For more information on the mirror module see ngx_http_mirror_module","title":"Annotations"},{"location":"user-guide/nginx-configuration/annotations/#annotations","text":"You can add these Kubernetes annotations to specific Ingress objects to customize their behavior. Tip Annotation keys and values can only be strings. Other types, such as boolean or numeric values must be quoted, i.e. \"true\" , \"false\" , \"100\" . Note The annotation prefix can be changed using the --annotations-prefix command line argument , but the default is nginx.ingress.kubernetes.io , as described in the table below. Name type nginx.ingress.kubernetes.io/app-root string nginx.ingress.kubernetes.io/affinity cookie nginx.ingress.kubernetes.io/affinity-mode \"balanced\" or \"persistent\" nginx.ingress.kubernetes.io/auth-realm string nginx.ingress.kubernetes.io/auth-secret string nginx.ingress.kubernetes.io/auth-secret-type string nginx.ingress.kubernetes.io/auth-type basic or digest nginx.ingress.kubernetes.io/auth-tls-secret string nginx.ingress.kubernetes.io/auth-tls-verify-depth number nginx.ingress.kubernetes.io/auth-tls-verify-client string nginx.ingress.kubernetes.io/auth-tls-error-page string nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/auth-url string nginx.ingress.kubernetes.io/auth-cache-key string nginx.ingress.kubernetes.io/auth-cache-duration string nginx.ingress.kubernetes.io/auth-proxy-set-headers string nginx.ingress.kubernetes.io/auth-snippet string nginx.ingress.kubernetes.io/enable-global-auth \"true\" or \"false\" nginx.ingress.kubernetes.io/backend-protocol string nginx.ingress.kubernetes.io/canary \"true\" or \"false\" nginx.ingress.kubernetes.io/canary-by-header string nginx.ingress.kubernetes.io/canary-by-header-value string nginx.ingress.kubernetes.io/canary-by-header-pattern string nginx.ingress.kubernetes.io/canary-by-cookie string nginx.ingress.kubernetes.io/canary-weight number nginx.ingress.kubernetes.io/client-body-buffer-size string nginx.ingress.kubernetes.io/configuration-snippet string nginx.ingress.kubernetes.io/custom-http-errors []int nginx.ingress.kubernetes.io/default-backend string nginx.ingress.kubernetes.io/enable-cors \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-allow-origin string nginx.ingress.kubernetes.io/cors-allow-methods string nginx.ingress.kubernetes.io/cors-allow-headers string nginx.ingress.kubernetes.io/cors-allow-credentials \"true\" or \"false\" nginx.ingress.kubernetes.io/cors-max-age number nginx.ingress.kubernetes.io/force-ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/from-to-www-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/http2-push-preload \"true\" or \"false\" nginx.ingress.kubernetes.io/limit-connections number nginx.ingress.kubernetes.io/limit-rps number nginx.ingress.kubernetes.io/permanent-redirect string nginx.ingress.kubernetes.io/permanent-redirect-code number nginx.ingress.kubernetes.io/temporal-redirect string nginx.ingress.kubernetes.io/proxy-body-size string nginx.ingress.kubernetes.io/proxy-cookie-domain string nginx.ingress.kubernetes.io/proxy-cookie-path string nginx.ingress.kubernetes.io/proxy-connect-timeout number nginx.ingress.kubernetes.io/proxy-send-timeout number nginx.ingress.kubernetes.io/proxy-read-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream string nginx.ingress.kubernetes.io/proxy-next-upstream-timeout number nginx.ingress.kubernetes.io/proxy-next-upstream-tries number nginx.ingress.kubernetes.io/proxy-request-buffering string nginx.ingress.kubernetes.io/proxy-redirect-from string nginx.ingress.kubernetes.io/proxy-redirect-to string nginx.ingress.kubernetes.io/proxy-http-version \"1.0\" or \"1.1\" nginx.ingress.kubernetes.io/proxy-ssl-secret string nginx.ingress.kubernetes.io/proxy-ssl-ciphers string nginx.ingress.kubernetes.io/proxy-ssl-name string nginx.ingress.kubernetes.io/proxy-ssl-protocols string nginx.ingress.kubernetes.io/proxy-ssl-verify string nginx.ingress.kubernetes.io/proxy-ssl-verify-depth number nginx.ingress.kubernetes.io/proxy-ssl-server-name string nginx.ingress.kubernetes.io/enable-rewrite-log \"true\" or \"false\" nginx.ingress.kubernetes.io/rewrite-target URI nginx.ingress.kubernetes.io/satisfy string nginx.ingress.kubernetes.io/server-alias string nginx.ingress.kubernetes.io/server-snippet string nginx.ingress.kubernetes.io/service-upstream \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-name string nginx.ingress.kubernetes.io/session-cookie-path string nginx.ingress.kubernetes.io/session-cookie-change-on-failure \"true\" or \"false\" nginx.ingress.kubernetes.io/session-cookie-samesite string nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-redirect \"true\" or \"false\" nginx.ingress.kubernetes.io/ssl-passthrough \"true\" or \"false\" nginx.ingress.kubernetes.io/upstream-hash-by string nginx.ingress.kubernetes.io/x-forwarded-prefix string nginx.ingress.kubernetes.io/load-balance string nginx.ingress.kubernetes.io/upstream-vhost string nginx.ingress.kubernetes.io/whitelist-source-range CIDR nginx.ingress.kubernetes.io/proxy-buffering string nginx.ingress.kubernetes.io/proxy-buffers-number number nginx.ingress.kubernetes.io/proxy-buffer-size string nginx.ingress.kubernetes.io/proxy-max-temp-file-size string nginx.ingress.kubernetes.io/ssl-ciphers string nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers \"true\" or \"false\" nginx.ingress.kubernetes.io/connection-proxy-header string nginx.ingress.kubernetes.io/enable-access-log \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-opentracing \"true\" or \"false\" nginx.ingress.kubernetes.io/enable-influxdb \"true\" or \"false\" nginx.ingress.kubernetes.io/influxdb-measurement string nginx.ingress.kubernetes.io/influxdb-port string nginx.ingress.kubernetes.io/influxdb-host string nginx.ingress.kubernetes.io/influxdb-server-name string nginx.ingress.kubernetes.io/use-regex bool nginx.ingress.kubernetes.io/enable-modsecurity bool nginx.ingress.kubernetes.io/enable-owasp-core-rules bool nginx.ingress.kubernetes.io/modsecurity-transaction-id string nginx.ingress.kubernetes.io/modsecurity-snippet string nginx.ingress.kubernetes.io/mirror-request-body string nginx.ingress.kubernetes.io/mirror-target string","title":"Annotations"},{"location":"user-guide/nginx-configuration/annotations/#canary","text":"In some cases, you may want to \"canary\" a new set of changes by sending a small number of requests to a different service than the production service. The canary annotation enables the Ingress spec to act as an alternative service for requests to route to depending on the rules applied. The following annotations to configure canary can be enabled after nginx.ingress.kubernetes.io/canary: \"true\" is set: nginx.ingress.kubernetes.io/canary-by-header : The header to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to always , it will be routed to the canary. When the header is set to never , it will never be routed to the canary. For any other value, the header will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-by-header-value : The header value to match for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the request header is set to this value, it will be routed to the canary. For any other header value, the header will be ignored and the request compared against the other canary rules by precedence. This annotation has to be used together with . The annotation is an extension of the nginx.ingress.kubernetes.io/canary-by-header to allow customizing the header value instead of using hardcoded values. It doesn't have any effect if the nginx.ingress.kubernetes.io/canary-by-header annotation is not defined. nginx.ingress.kubernetes.io/canary-by-header-pattern : This works the same way as canary-by-header-value except it does PCRE Regex matching. Note that when canary-by-header-value is set this annotation will be ignored. When the given Regex causes error during request processing, the request will be considered as not matching. nginx.ingress.kubernetes.io/canary-by-cookie : The cookie to use for notifying the Ingress to route the request to the service specified in the Canary Ingress. When the cookie value is set to always , it will be routed to the canary. When the cookie is set to never , it will never be routed to the canary. For any other value, the cookie will be ignored and the request compared against the other canary rules by precedence. nginx.ingress.kubernetes.io/canary-weight : The integer based (0 - 100) percent of random requests that should be routed to the service specified in the canary Ingress. A weight of 0 implies that no requests will be sent to the service in the Canary ingress by this canary rule. A weight of 100 means implies all requests will be sent to the alternative service specified in the Ingress. Canary rules are evaluated in order of precedence. Precedence is as follows: canary-by-header -> canary-by-cookie -> canary-weight Note that when you mark an ingress as canary, then all the other non-canary annotations will be ignored (inherited from the corresponding main ingress) except nginx.ingress.kubernetes.io/load-balance and nginx.ingress.kubernetes.io/upstream-hash-by . Known Limitations Currently a maximum of one canary ingress can be applied per Ingress rule.","title":"Canary"},{"location":"user-guide/nginx-configuration/annotations/#rewrite","text":"In some scenarios the exposed URL in the backend service differs from the specified path in the Ingress rule. Without a rewrite any request will return 404. Set the annotation nginx.ingress.kubernetes.io/rewrite-target to the path expected by the service. If the Application Root is exposed in a different path and needs to be redirected, set the annotation nginx.ingress.kubernetes.io/app-root to redirect requests for / . Example Please check the rewrite example.","title":"Rewrite"},{"location":"user-guide/nginx-configuration/annotations/#session-affinity","text":"The annotation nginx.ingress.kubernetes.io/affinity enables and sets the affinity type in all Upstreams of an Ingress. This way, a request will always be directed to the same upstream server. The only affinity type available for NGINX is cookie . The annotation nginx.ingress.kubernetes.io/affinity-mode defines the stickyness of a session. Setting this to balanced (default) will redistribute some sessions if a deployment gets scaled up, therefore rebalancing the load on the servers. Setting this to persistent will not rebalance sessions to new servers, therefore providing maximum stickyness. Attention If more than one Ingress is defined for a host and at least one Ingress uses nginx.ingress.kubernetes.io/affinity: cookie , then only paths on the Ingress using nginx.ingress.kubernetes.io/affinity will use session cookie affinity. All paths defined on other Ingresses for the host will be load balanced through the random selection of a backend server. Example Please check the affinity example.","title":"Session Affinity"},{"location":"user-guide/nginx-configuration/annotations/#cookie-affinity","text":"If you use the cookie affinity type you can also specify the name of the cookie that will be used to route the requests with the annotation nginx.ingress.kubernetes.io/session-cookie-name . The default is to create a cookie named 'INGRESSCOOKIE'. The NGINX annotation nginx.ingress.kubernetes.io/session-cookie-path defines the path that will be set on the cookie. This is optional unless the annotation nginx.ingress.kubernetes.io/use-regex is set to true; Session cookie paths do not support regex. Use nginx.ingress.kubernetes.io/session-cookie-samesite to apply a SameSite attribute to the sticky cookie. Browser accepted values are None , Lax , and Strict . Some browsers reject cookies with SameSite=None , including those created before the SameSite=None specification (e.g. Chrome 5X). Other browsers mistakenly treat SameSite=None cookies as SameSite=Strict (e.g. Safari running on OSX 14). To omit SameSite=None from browsers with these incompatibilities, add the annotation nginx.ingress.kubernetes.io/session-cookie-conditional-samesite-none: \"true\" .","title":"Cookie affinity"},{"location":"user-guide/nginx-configuration/annotations/#authentication","text":"It is possible to add authentication by adding additional annotations in the Ingress rule. The source of the authentication is a secret that contains usernames and passwords. The annotations are: nginx.ingress.kubernetes.io/auth-type: [basic|digest] Indicates the HTTP Authentication Type: Basic or Digest Access Authentication . nginx.ingress.kubernetes.io/auth-secret: secretName The name of the Secret that contains the usernames and passwords which are granted access to the path s defined in the Ingress rules. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-secret-type: [auth-file|auth-map] The auth-secret can have two forms: auth-file - default, an htpasswd file in the key auth within the secret auth-map - the keys of the secret are the usernames, and the values are the hashed passwords nginx.ingress.kubernetes.io/auth-realm: \"realm string\" Example Please check the auth example.","title":"Authentication"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-upstream-hashing","text":"NGINX supports load balancing by client-server mapping based on consistent hashing for a given key. The key can contain text, variables or any combination thereof. This feature allows for request stickiness other than client IP or cookies. The ketama consistent hashing method will be used which ensures only a few keys would be remapped to different servers on upstream group changes. There is a special mode of upstream hashing called subset. In this mode, upstream servers are grouped into subsets, and stickiness works by mapping keys to a subset instead of individual upstream servers. Specific server is chosen uniformly at random from the selected sticky subset. It provides a balance between stickiness and load distribution. To enable consistent hashing for a backend: nginx.ingress.kubernetes.io/upstream-hash-by : the nginx variable, text value or any combination thereof to use for consistent hashing. For example: nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"$request_uri$host\" or nginx.ingress.kubernetes.io/upstream-hash-by: \"${request_uri}-text-value\" to consistently hash upstream requests by the current request URI. \"subset\" hashing can be enabled setting nginx.ingress.kubernetes.io/upstream-hash-by-subset : \"true\". This maps requests to subset of nodes instead of a single one. upstream-hash-by-subset-size determines the size of each subset (default 3). Please check the chashsubset example.","title":"Custom NGINX upstream hashing"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-load-balancing","text":"This is similar to load-balance in ConfigMap , but configures load balancing algorithm per ingress. Note that nginx.ingress.kubernetes.io/upstream-hash-by takes preference over this. If this and nginx.ingress.kubernetes.io/upstream-hash-by are not set then we fallback to using globally configured load balancing algorithm.","title":"Custom NGINX load balancing"},{"location":"user-guide/nginx-configuration/annotations/#custom-nginx-upstream-vhost","text":"This configuration setting allows you to control the value for host in the following statement: proxy_set_header Host $host , which forms part of the location block. This is useful if you need to call the upstream server by something other than $host .","title":"Custom NGINX upstream vhost"},{"location":"user-guide/nginx-configuration/annotations/#client-certificate-authentication","text":"It is possible to enable Client Certificate Authentication using additional annotations in Ingress Rule. The annotations are: nginx.ingress.kubernetes.io/auth-tls-secret: secretName : The name of the Secret that contains the full Certificate Authority chain ca.crt that is enabled to authenticate against this Ingress. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/auth-tls-verify-depth : The validation depth between the provided client certificate and the Certification Authority chain. nginx.ingress.kubernetes.io/auth-tls-verify-client : Enables verification of client certificates. nginx.ingress.kubernetes.io/auth-tls-error-page : The URL/Page that user should be redirected in case of a Certificate Authentication Error nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream : Indicates if the received certificates should be passed or not to the upstream server. By default this is disabled. Example Please check the client-certs example. Attention TLS with Client Authentication is not possible in Cloudflare and might result in unexpected behavior. Cloudflare only allows Authenticated Origin Pulls and is required to use their own certificate: https://blog.cloudflare.com/protecting-the-origin-with-tls-authenticated-origin-pulls/ Only Authenticated Origin Pulls are allowed and can be configured by following their tutorial: https://support.cloudflare.com/hc/en-us/articles/204494148-Setting-up-NGINX-to-use-TLS-Authenticated-Origin-Pulls","title":"Client Certificate Authentication"},{"location":"user-guide/nginx-configuration/annotations/#backend-certificate-authentication","text":"It is possible to authenticate to a proxied HTTPS backend with certificate using additional annotations in Ingress Rule. nginx.ingress.kubernetes.io/proxy-ssl-secret: secretName : Specifies a Secret with the certificate tls.crt , key tls.key in PEM format used for authentication to a proxied HTTPS server. It should also contain trusted CA certificates ca.crt in PEM format used to verify the certificate of the proxied HTTPS server. This annotation also accepts the alternative form \"namespace/secretName\", in which case the Secret lookup is performed in the referenced namespace instead of the Ingress namespace. nginx.ingress.kubernetes.io/proxy-ssl-verify : Enables or disables verification of the proxied HTTPS server certificate. (default: off) nginx.ingress.kubernetes.io/proxy-ssl-verify-depth : Sets the verification depth in the proxied HTTPS server certificates chain. (default: 1) nginx.ingress.kubernetes.io/proxy-ssl-ciphers : Specifies the enabled ciphers for requests to a proxied HTTPS server. The ciphers are specified in the format understood by the OpenSSL library. nginx.ingress.kubernetes.io/proxy-ssl-name : Allows to set proxy_ssl_name . This allows overriding the server name used to verify the certificate of the proxied HTTPS server. This value is also passed through SNI when a connection is established to the proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-protocols : Enables the specified protocols for requests to a proxied HTTPS server. nginx.ingress.kubernetes.io/proxy-ssl-server-name : Enables passing of the server name through TLS Server Name Indication extension (SNI, RFC 6066) when establishing a connection with the proxied HTTPS server.","title":"Backend Certificate Authentication"},{"location":"user-guide/nginx-configuration/annotations/#configuration-snippet","text":"Using this annotation you can add additional configuration to the NGINX location. For example: nginx.ingress.kubernetes.io/configuration-snippet : | more_set_headers \"Request-Id: $req_id\";","title":"Configuration snippet"},{"location":"user-guide/nginx-configuration/annotations/#custom-http-errors","text":"Like the custom-http-errors value in the ConfigMap, this annotation will set NGINX proxy-intercept-errors , but only for the NGINX location associated with this ingress. If a default backend annotation is specified on the ingress, the errors will be routed to that annotation's default backend service (instead of the global default backend). Different ingresses can specify different sets of error codes. Even if multiple ingress objects share the same hostname, this annotation can be used to intercept different error codes for each ingress (for example, different error codes to be intercepted for different paths on the same hostname, if each path is on a different ingress). If custom-http-errors is also specified globally, the error values specified in this annotation will override the global value for the given ingress' hostname and path. Example usage: nginx.ingress.kubernetes.io/custom-http-errors: \"404,415\"","title":"Custom HTTP Errors"},{"location":"user-guide/nginx-configuration/annotations/#default-backend","text":"This annotation is of the form nginx.ingress.kubernetes.io/default-backend: <svc name> to specify a custom default backend. This <svc name> is a reference to a service inside of the same namespace in which you are applying this annotation. This annotation overrides the global default backend. This service will be handle the response when the service in the Ingress rule does not have active endpoints. It will also handle the error responses if both this annotation and the custom-http-errors annotation is set.","title":"Default Backend"},{"location":"user-guide/nginx-configuration/annotations/#enable-cors","text":"To enable Cross-Origin Resource Sharing (CORS) in an Ingress rule, add the annotation nginx.ingress.kubernetes.io/enable-cors: \"true\" . This will add a section in the server location enabling this functionality. CORS can be controlled with the following annotations: nginx.ingress.kubernetes.io/cors-allow-methods controls which methods are accepted. This is a multi-valued field, separated by ',' and accepts only letters (upper and lower case). Default: GET, PUT, POST, DELETE, PATCH, OPTIONS Example: nginx.ingress.kubernetes.io/cors-allow-methods: \"PUT, GET, POST, OPTIONS\" nginx.ingress.kubernetes.io/cors-allow-headers controls which headers are accepted. This is a multi-valued field, separated by ',' and accepts letters, numbers, _ and -. Default: DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization Example: nginx.ingress.kubernetes.io/cors-allow-headers: \"X-Forwarded-For, X-app123-XPTO\" nginx.ingress.kubernetes.io/cors-allow-origin controls what's the accepted Origin for CORS. This is a single field value, with the following format: http(s)://origin-site.com or http(s)://origin-site.com:port Default: * Example: nginx.ingress.kubernetes.io/cors-allow-origin: \"https://origin-site.com:4443\" nginx.ingress.kubernetes.io/cors-allow-credentials controls if credentials can be passed during CORS operations. Default: true Example: nginx.ingress.kubernetes.io/cors-allow-credentials: \"false\" nginx.ingress.kubernetes.io/cors-max-age controls how long preflight requests can be cached. Default: 1728000 Example: nginx.ingress.kubernetes.io/cors-max-age: 600 Note For more information please see https://enable-cors.org","title":"Enable CORS"},{"location":"user-guide/nginx-configuration/annotations/#http2-push-preload","text":"Enables automatic conversion of preload links specified in the \u201cLink\u201d response header fields into push requests. Example nginx.ingress.kubernetes.io/http2-push-preload: \"true\"","title":"HTTP2 Push Preload."},{"location":"user-guide/nginx-configuration/annotations/#server-alias","text":"Allows the definition of one or more aliases in the server definition of the NGINX configuration using the annotation nginx.ingress.kubernetes.io/server-alias: \"<alias 1>,<alias 2>\" . This will create a server with the same configuration, but adding new values to the server_name directive. Note A server-alias name cannot conflict with the hostname of an existing server. If it does, the server-alias annotation will be ignored. If a server-alias is created and later a new server with the same hostname is created, the new server configuration will take place over the alias configuration. For more information please see the server_name documentation .","title":"Server Alias"},{"location":"user-guide/nginx-configuration/annotations/#server-snippet","text":"Using the annotation nginx.ingress.kubernetes.io/server-snippet it is possible to add custom configuration in the server configuration block. apiVersion : networking.k8s.io/v1beta1 kind : Ingress metadata : annotations : nginx.ingress.kubernetes.io/server-snippet : | set $agentflag 0; if ($http_user_agent ~* \"(Mobile)\" ){ set $agentflag 1; } if ( $agentflag = 1 ) { return 301 https://m.example.com; } Attention This annotation can be used only once per host.","title":"Server snippet"},{"location":"user-guide/nginx-configuration/annotations/#client-body-buffer-size","text":"Sets buffer size for reading client request body per location. In case the request body is larger than the buffer, the whole body or only its part is written to a temporary file. By default, buffer size is equal to two memory pages. This is 8K on x86, other 32-bit platforms, and x86-64. It is usually 16K on other 64-bit platforms. This annotation is applied to each location provided in the ingress rule. Note The annotation value must be given in a format understood by Nginx. Example nginx.ingress.kubernetes.io/client-body-buffer-size: \"1000\" # 1000 bytes nginx.ingress.kubernetes.io/client-body-buffer-size: 1k # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1K # 1 kilobyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1m # 1 megabyte nginx.ingress.kubernetes.io/client-body-buffer-size: 1M # 1 megabyte For more information please see http://nginx.org","title":"Client Body Buffer Size"},{"location":"user-guide/nginx-configuration/annotations/#external-authentication","text":"To use an existing service that provides authentication the Ingress rule can be annotated with nginx.ingress.kubernetes.io/auth-url to indicate the URL where the HTTP request should be sent. nginx.ingress.kubernetes.io/auth-url : \"URL to the authentication service\" Additionally it is possible to set: nginx.ingress.kubernetes.io/auth-method : <Method> to specify the HTTP method to use. nginx.ingress.kubernetes.io/auth-signin : <SignIn_URL> to specify the location of the error page. nginx.ingress.kubernetes.io/auth-response-headers : <Response_Header_1, ..., Response_Header_n> to specify headers to pass to backend once authentication request completes. nginx.ingress.kubernetes.io/auth-proxy-set-headers : <ConfigMap> the name of a ConfigMap that specifies headers to pass to the authentication service nginx.ingress.kubernetes.io/auth-request-redirect : <Request_Redirect_URL> to specify the X-Auth-Request-Redirect header value. nginx.ingress.kubernetes.io/auth-cache-key : <Cache_Key> this enables caching for auth requests. specify a lookup key for auth responses. e.g. $remote_user$http_authorization . Each server and location has it's own keyspace. Hence a cached response is only valid on a per-server and per-location basis. nginx.ingress.kubernetes.io/auth-cache-duration : <Cache_duration> to specify a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . nginx.ingress.kubernetes.io/auth-snippet : <Auth_Snippet> to specify a custom snippet to use with external authentication, e.g. nginx.ingress.kubernetes.io/auth-url : http://foo.com/external-auth nginx.ingress.kubernetes.io/auth-snippet : | proxy_set_header Foo-Header 42; Note: nginx.ingress.kubernetes.io/auth-snippet is an optional annotation. However, it may only be used in conjunction with nginx.ingress.kubernetes.io/auth-url and will be ignored if nginx.ingress.kubernetes.io/auth-url is not set Example Please check the external-auth example.","title":"External Authentication"},{"location":"user-guide/nginx-configuration/annotations/#global-external-authentication","text":"By default the controller redirects all requests to an existing service that provides authentication if global-auth-url is set in the NGINX ConfigMap. If you want to disable this behavior for that ingress, you can use enable-global-auth: \"false\" in the NGINX ConfigMap. nginx.ingress.kubernetes.io/enable-global-auth : indicates if GlobalExternalAuth configuration should be applied or not to this Ingress rule. Default values is set to \"true\" . Note For more information please see global-auth-url .","title":"Global External Authentication"},{"location":"user-guide/nginx-configuration/annotations/#rate-limiting","text":"These annotations define limits on connections and transmission rates. These can be used to mitigate DDoS Attacks . nginx.ingress.kubernetes.io/limit-connections : number of concurrent connections allowed from a single IP address. A 503 error is returned when exceeding this limit. nginx.ingress.kubernetes.io/limit-rps : number of requests accepted from a given IP each second. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rpm : number of requests accepted from a given IP each minute. The burst limit is set to 5 times the limit. When clients exceed this limit, limit-req-status-code default: 503 is returned. nginx.ingress.kubernetes.io/limit-rate-after : initial number of kilobytes after which the further transmission of a response to a given connection will be rate limited. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-rate : number of kilobytes per second allowed to send to a given connection. The zero value disables rate limiting. This feature must be used with proxy-buffering enabled. nginx.ingress.kubernetes.io/limit-whitelist : client IP source ranges to be excluded from rate-limiting. The value is a comma separated list of CIDRs. If you specify multiple annotations in a single Ingress rule, limits are applied in the order limit-connections , limit-rpm , limit-rps . To configure settings globally for all Ingress rules, the limit-rate-after and limit-rate values may be set in the NGINX ConfigMap . The value set in an Ingress annotation will override the global setting. The client IP address will be set based on the use of PROXY protocol or from the X-Forwarded-For header value when use-forwarded-headers is enabled.","title":"Rate limiting"},{"location":"user-guide/nginx-configuration/annotations/#permanent-redirect","text":"This annotation allows to return a permanent redirect instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/permanent-redirect: https://www.google.com would redirect everything to Google.","title":"Permanent Redirect"},{"location":"user-guide/nginx-configuration/annotations/#permanent-redirect-code","text":"This annotation allows you to modify the status code used for permanent redirects. For example nginx.ingress.kubernetes.io/permanent-redirect-code: '308' would return your permanent-redirect with a 308.","title":"Permanent Redirect Code"},{"location":"user-guide/nginx-configuration/annotations/#temporal-redirect","text":"This annotation allows you to return a temporal redirect (Return Code 302) instead of sending data to the upstream. For example nginx.ingress.kubernetes.io/temporal-redirect: https://www.google.com would redirect everything to Google with a Return Code of 302 (Moved Temporarily)","title":"Temporal Redirect"},{"location":"user-guide/nginx-configuration/annotations/#ssl-passthrough","text":"The annotation nginx.ingress.kubernetes.io/ssl-passthrough instructs the controller to send TLS connections directly to the backend instead of letting NGINX decrypt the communication. See also TLS/HTTPS in the User guide. Note SSL Passthrough is disabled by default and requires starting the controller with the --enable-ssl-passthrough flag. Attention Because SSL Passthrough works on layer 4 of the OSI model (TCP) and not on the layer 7 (HTTP), using SSL Passthrough invalidates all the other annotations set on an Ingress object.","title":"SSL Passthrough"},{"location":"user-guide/nginx-configuration/annotations/#service-upstream","text":"By default the NGINX ingress controller uses a list of all endpoints (Pod IP/port) in the NGINX upstream configuration. The nginx.ingress.kubernetes.io/service-upstream annotation disables that behavior and instead uses a single upstream in NGINX, the service's Cluster IP and port. This can be desirable for things like zero-downtime deployments as it reduces the need to reload NGINX configuration when Pods come up and down. See issue #257 .","title":"Service Upstream"},{"location":"user-guide/nginx-configuration/annotations/#known-issues","text":"If the service-upstream annotation is specified the following things should be taken into consideration: Sticky Sessions will not work as only round-robin load balancing is supported. The proxy_next_upstream directive will not have any effect meaning on error the request will not be dispatched to another upstream.","title":"Known Issues"},{"location":"user-guide/nginx-configuration/annotations/#server-side-https-enforcement-through-redirect","text":"By default the controller redirects (308) to HTTPS if TLS is enabled for that ingress. If you want to disable this behavior globally, you can use ssl-redirect: \"false\" in the NGINX ConfigMap . To configure this feature for specific ingress resources, you can use the nginx.ingress.kubernetes.io/ssl-redirect: \"false\" annotation in the particular resource. When using SSL offloading outside of cluster (e.g. AWS ELB) it may be useful to enforce a redirect to HTTPS even when there is no TLS certificate available. This can be achieved by using the nginx.ingress.kubernetes.io/force-ssl-redirect: \"true\" annotation in the particular resource.","title":"Server-side HTTPS enforcement through redirect"},{"location":"user-guide/nginx-configuration/annotations/#redirect-fromto-www","text":"In some scenarios is required to redirect from www.domain.com to domain.com or vice versa. To enable this feature use the annotation nginx.ingress.kubernetes.io/from-to-www-redirect: \"true\" Attention If at some point a new Ingress is created with a host equal to one of the options (like domain.com ) the annotation will be omitted. Attention For HTTPS to HTTPS redirects is mandatory the SSL Certificate defined in the Secret, located in the TLS section of Ingress, contains both FQDN in the common name of the certificate.","title":"Redirect from/to www"},{"location":"user-guide/nginx-configuration/annotations/#whitelist-source-range","text":"You can specify allowed client IP source ranges through the nginx.ingress.kubernetes.io/whitelist-source-range annotation. The value is a comma separated list of CIDRs , e.g. 10.0.0.0/24,172.10.0.1 . To configure this setting globally for all Ingress rules, the whitelist-source-range value may be set in the NGINX ConfigMap . Note Adding an annotation to an Ingress rule overrides any global restriction.","title":"Whitelist source range"},{"location":"user-guide/nginx-configuration/annotations/#custom-timeouts","text":"Using the configuration configmap it is possible to set the default global timeout for connections to the upstream servers. In some scenarios is required to have different values. To allow this we provide annotations that allows this customization: nginx.ingress.kubernetes.io/proxy-connect-timeout nginx.ingress.kubernetes.io/proxy-send-timeout nginx.ingress.kubernetes.io/proxy-read-timeout nginx.ingress.kubernetes.io/proxy-next-upstream nginx.ingress.kubernetes.io/proxy-next-upstream-timeout nginx.ingress.kubernetes.io/proxy-next-upstream-tries nginx.ingress.kubernetes.io/proxy-request-buffering","title":"Custom timeouts"},{"location":"user-guide/nginx-configuration/annotations/#proxy-redirect","text":"With the annotations nginx.ingress.kubernetes.io/proxy-redirect-from and nginx.ingress.kubernetes.io/proxy-redirect-to it is possible to set the text that should be changed in the Location and Refresh header fields of a proxied server response Setting \"off\" or \"default\" in the annotation nginx.ingress.kubernetes.io/proxy-redirect-from disables nginx.ingress.kubernetes.io/proxy-redirect-to , otherwise, both annotations must be used in unison. Note that each annotation must be a string without spaces. By default the value of each annotation is \"off\".","title":"Proxy redirect"},{"location":"user-guide/nginx-configuration/annotations/#custom-max-body-size","text":"For NGINX, an 413 error will be returned to the client when the size in a request exceeds the maximum allowed size of the client request body. This size can be configured by the parameter client_max_body_size . To configure this setting globally for all Ingress rules, the proxy-body-size value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-body-size : 8m","title":"Custom max body size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-cookie-domain","text":"Sets a text that should be changed in the domain attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-domain value may be set in the NGINX ConfigMap .","title":"Proxy cookie domain"},{"location":"user-guide/nginx-configuration/annotations/#proxy-cookie-path","text":"Sets a text that should be changed in the path attribute of the \"Set-Cookie\" header fields of a proxied server response. To configure this setting globally for all Ingress rules, the proxy-cookie-path value may be set in the NGINX ConfigMap .","title":"Proxy cookie path"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffering","text":"Enable or disable proxy buffering proxy_buffering . By default proxy buffering is disabled in the NGINX config. To configure this setting globally for all Ingress rules, the proxy-buffering value may be set in the NGINX ConfigMap . To use custom values in an Ingress rule define these annotation: nginx.ingress.kubernetes.io/proxy-buffering : \"on\"","title":"Proxy buffering"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffers-number","text":"Sets the number of the buffers in proxy_buffers used for reading the first part of the response received from the proxied server. By default proxy buffers number is set as 4 To configure this setting globally, set proxy-buffers-number in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffers-number : \"4\"","title":"Proxy buffers Number"},{"location":"user-guide/nginx-configuration/annotations/#proxy-buffer-size","text":"Sets the size of the buffer proxy_buffer_size used for reading the first part of the response received from the proxied server. By default proxy buffer size is set as \"4k\" To configure this setting globally, set proxy-buffer-size in NGINX ConfigMap . To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-buffer-size : \"8k\"","title":"Proxy buffer size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-max-temp-file-size","text":"When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file. This directive sets the maximum size of the temporary file setting the proxy_max_temp_file_size . The size of data written to the temporary file at a time is set by the proxy_temp_file_write_size directive. The zero value disables buffering of responses to temporary files. To use custom values in an Ingress rule, define this annotation: nginx.ingress.kubernetes.io/proxy-max-temp-file-size : \"1024m\"","title":"Proxy max temp file size"},{"location":"user-guide/nginx-configuration/annotations/#proxy-http-version","text":"Using this annotation sets the proxy_http_version that the Nginx reverse proxy will use to communicate with the backend. By default this is set to \"1.1\". nginx.ingress.kubernetes.io/proxy-http-version : \"1.0\"","title":"Proxy HTTP version"},{"location":"user-guide/nginx-configuration/annotations/#ssl-ciphers","text":"Specifies the enabled ciphers . Using this annotation will set the ssl_ciphers directive at the server level. This configuration is active for all the paths in the host. nginx.ingress.kubernetes.io/ssl-ciphers : \"ALL:!aNULL:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP\" The following annotation will set the ssl_prefer_server_ciphers directive at the server level. This configuration specifies that server ciphers should be preferred over client ciphers when using the SSLv3 and TLS protocols. nginx.ingress.kubernetes.io/ssl-prefer-server-ciphers : \"true\"","title":"SSL ciphers"},{"location":"user-guide/nginx-configuration/annotations/#connection-proxy-header","text":"Using this annotation will override the default connection header set by NGINX. To use custom values in an Ingress rule, define the annotation: nginx.ingress.kubernetes.io/connection-proxy-header : \"keep-alive\"","title":"Connection proxy header"},{"location":"user-guide/nginx-configuration/annotations/#enable-access-log","text":"Access logs are enabled by default, but in some scenarios access logs might be required to be disabled for a given ingress. To do this, use the annotation: nginx.ingress.kubernetes.io/enable-access-log : \"false\"","title":"Enable Access Log"},{"location":"user-guide/nginx-configuration/annotations/#enable-rewrite-log","text":"Rewrite logs are not enabled by default. In some scenarios it could be required to enable NGINX rewrite logs. Note that rewrite logs are sent to the error_log file at the notice level. To enable this feature use the annotation: nginx.ingress.kubernetes.io/enable-rewrite-log : \"true\"","title":"Enable Rewrite Log"},{"location":"user-guide/nginx-configuration/annotations/#enable-opentracing","text":"Opentracing can be enabled or disabled globally through the ConfigMap but this will sometimes need to be overridden to enable it or disable it for a specific ingress (e.g. to turn off tracing of external health check endpoints) nginx.ingress.kubernetes.io/enable-opentracing : \"true\"","title":"Enable Opentracing"},{"location":"user-guide/nginx-configuration/annotations/#x-forwarded-prefix-header","text":"To add the non-standard X-Forwarded-Prefix header to the upstream request with a string value, the following annotation can be used: nginx.ingress.kubernetes.io/x-forwarded-prefix : \"/path\"","title":"X-Forwarded-Prefix Header"},{"location":"user-guide/nginx-configuration/annotations/#modsecurity","text":"ModSecurity is an OpenSource Web Application firewall. It can be enabled for a particular set of ingress locations. The ModSecurity module must first be enabled by enabling ModSecurity in the ConfigMap . Note this will enable ModSecurity for all paths, and each path must be disabled manually. It can be enabled using the following annotation: nginx.ingress.kubernetes.io/enable-modsecurity : \"true\" ModSecurity will run in \"Detection-Only\" mode using the recommended configuration . You can enable the OWASP Core Rule Set by setting the following annotation: nginx.ingress.kubernetes.io/enable-owasp-core-rules : \"true\" You can pass transactionIDs from nginx by setting up the following: nginx.ingress.kubernetes.io/modsecurity-transaction-id : \"$request_id\" You can also add your own set of modsecurity rules via a snippet: nginx.ingress.kubernetes.io/modsecurity-snippet : | SecRuleEngine On SecDebugLog /tmp/modsec_debug.log Note: If you use both enable-owasp-core-rules and modsecurity-snippet annotations together, only the modsecurity-snippet will take effect. If you wish to include the OWASP Core Rule Set or recommended configuration simply use the include statement: nginx 0.24.1 and below nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf Include /etc/nginx/modsecurity/modsecurity.conf nginx 0.25.0 and above nginx.ingress.kubernetes.io/modsecurity-snippet : | Include /etc/nginx/owasp-modsecurity-crs/nginx-modsecurity.conf","title":"ModSecurity"},{"location":"user-guide/nginx-configuration/annotations/#influxdb","text":"Using influxdb-* annotations we can monitor requests passing through a Location by sending them to an InfluxDB backend exposing the UDP socket using the nginx-influxdb-module . nginx.ingress.kubernetes.io/enable-influxdb : \"true\" nginx.ingress.kubernetes.io/influxdb-measurement : \"nginx-reqs\" nginx.ingress.kubernetes.io/influxdb-port : \"8089\" nginx.ingress.kubernetes.io/influxdb-host : \"127.0.0.1\" nginx.ingress.kubernetes.io/influxdb-server-name : \"nginx-ingress\" For the influxdb-host parameter you have two options: Use an InfluxDB server configured with the UDP protocol enabled. Deploy Telegraf as a sidecar proxy to the Ingress controller configured to listen UDP with the socket listener input and to write using anyone of the outputs plugins like InfluxDB, Apache Kafka, Prometheus, etc.. (recommended) It's important to remember that there's no DNS resolver at this stage so you will have to configure an ip address to nginx.ingress.kubernetes.io/influxdb-host . If you deploy Influx or Telegraf as sidecar (another container in the same pod) this becomes straightforward since you can directly use 127.0.0.1 .","title":"InfluxDB"},{"location":"user-guide/nginx-configuration/annotations/#backend-protocol","text":"Using backend-protocol annotations is possible to indicate how NGINX should communicate with the backend service. (Replaces secure-backends in older versions) Valid Values: HTTP, HTTPS, GRPC, GRPCS, AJP and FCGI By default NGINX uses HTTP . Example: nginx.ingress.kubernetes.io/backend-protocol : \"HTTPS\"","title":"Backend Protocol"},{"location":"user-guide/nginx-configuration/annotations/#use-regex","text":"Attention When using this annotation with the NGINX annotation nginx.ingress.kubernetes.io/affinity of type cookie , nginx.ingress.kubernetes.io/session-cookie-path must be also set; Session cookie paths do not support regex. Using the nginx.ingress.kubernetes.io/use-regex annotation will indicate whether or not the paths defined on an Ingress use regular expressions. The default value is false . The following will indicate that regular expression paths are being used: nginx.ingress.kubernetes.io/use-regex : \"true\" The following will indicate that regular expression paths are not being used: nginx.ingress.kubernetes.io/use-regex : \"false\" When this annotation is set to true , the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Additionally, if the rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. Please read about ingress path matching before using this modifier.","title":"Use Regex"},{"location":"user-guide/nginx-configuration/annotations/#satisfy","text":"By default, a request would need to satisfy all authentication requirements in order to be allowed. By using this annotation, requests that satisfy either any or all authentication requirements are allowed, based on the configuration value. nginx.ingress.kubernetes.io/satisfy : \"any\"","title":"Satisfy"},{"location":"user-guide/nginx-configuration/annotations/#mirror","text":"Enables a request to be mirrored to a mirror backend. Responses by mirror backends are ignored. This feature is useful, to see how requests will react in \"test\" backends. The mirror backend can be set by applying: nginx.ingress.kubernetes.io/mirror-target : https://test.env.com/$request_uri By default the request-body is sent to the mirror backend, but can be turned off by applying: nginx.ingress.kubernetes.io/mirror-request-body : \"off\" Note: The mirror directive will be applied to all paths within the ingress resource. The request sent to the mirror is linked to the original request. If you have a slow mirror backend, then the original request will throttle. For more information on the mirror module see ngx_http_mirror_module","title":"Mirror"},{"location":"user-guide/nginx-configuration/configmap/","text":"ConfigMaps \u00b6 ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. The ConfigMap API resource stores configuration data as key-value pairs. The data provides the configurations for system components for the nginx-controller. In order to overwrite nginx-controller configuration values as seen in config.go , you can add key-value pairs to the data section of the config-map. For Example: data : map-hash-bucket-size : \"128\" ssl-protocols : SSLv2 Important The key and values in a ConfigMap can only be strings. This means that we want a value with boolean values we need to quote the values, like \"true\" or \"false\". Same for numbers, like \"100\". \"Slice\" types (defined below as []string or []int ) can be provided as a comma-delimited string. Configuration options \u00b6 The following table shows a configuration option's name, type, and the default value: name type default add-headers string \"\" allow-backend-server-header bool \"false\" hide-headers string array empty access-log-params string \"\" access-log-path string \"/var/log/nginx/access.log\" http-access-log-path string \"\" stream-access-log-path string \"\" enable-access-log-for-default-backend bool \"false\" error-log-path string \"/var/log/nginx/error.log\" enable-modsecurity bool \"false\" modsecurity-snippet string \"\" enable-owasp-modsecurity-crs bool \"false\" client-header-buffer-size string \"1k\" client-header-timeout int 60 client-body-buffer-size string \"8k\" client-body-timeout int 60 disable-access-log bool false disable-ipv6 bool false disable-ipv6-dns bool false enable-underscores-in-headers bool false enable-ocsp bool false ignore-invalid-headers bool true retry-non-idempotent bool \"false\" error-log-level string \"notice\" http2-max-field-size string \"4k\" http2-max-header-size string \"16k\" http2-max-requests int 1000 http2-max-concurrent-streams int 1000 hsts bool \"true\" hsts-include-subdomains bool \"true\" hsts-max-age string \"15724800\" hsts-preload bool \"false\" keep-alive int 75 keep-alive-requests int 100 large-client-header-buffers string \"4 8k\" log-format-escape-json bool \"false\" log-format-upstream string $remote_addr - $remote_user [$time_local] \"$request\" $status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" $request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id log-format-stream string [$remote_addr] [$time_local] $protocol $status $bytes_sent $bytes_received $session_time enable-multi-accept bool \"true\" max-worker-connections int 16384 max-worker-open-files int 0 map-hash-bucket-size int 64 nginx-status-ipv4-whitelist []string \"127.0.0.1\" nginx-status-ipv6-whitelist []string \"::1\" proxy-real-ip-cidr []string \"0.0.0.0/0\" proxy-set-headers string \"\" server-name-hash-max-size int 1024 server-name-hash-bucket-size int <size of the processor\u2019s cache line> proxy-headers-hash-max-size int 512 proxy-headers-hash-bucket-size int 64 plugins []string reuse-port bool \"true\" server-tokens bool \"true\" ssl-ciphers string \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384\" ssl-ecdh-curve string \"auto\" ssl-dh-param string \"\" ssl-protocols string \"TLSv1.2 TLSv1.3\" ssl-session-cache bool \"true\" ssl-session-cache-size string \"10m\" ssl-session-tickets bool \"true\" ssl-session-ticket-key string <Randomly Generated> ssl-session-timeout string \"10m\" ssl-buffer-size string \"4k\" use-proxy-protocol bool \"false\" proxy-protocol-header-timeout string \"5s\" use-gzip bool \"true\" use-geoip bool \"true\" use-geoip2 bool \"false\" enable-brotli bool \"false\" brotli-level int 4 brotli-types string \"application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" use-http2 bool \"true\" gzip-level int 5 gzip-types string \"application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" worker-processes string <Number of CPUs> worker-cpu-affinity string \"\" worker-shutdown-timeout string \"240s\" load-balance string \"round_robin\" variables-hash-bucket-size int 128 variables-hash-max-size int 2048 upstream-keepalive-connections int 32 upstream-keepalive-timeout int 60 upstream-keepalive-requests int 100 limit-conn-zone-variable string \"$binary_remote_addr\" proxy-stream-timeout string \"600s\" proxy-stream-responses int 1 bind-address []string \"\" use-forwarded-headers bool \"false\" enable-real-ip bool \"false\" forwarded-for-header string \"X-Forwarded-For\" compute-full-forwarded-for bool \"false\" proxy-add-original-uri-header bool \"false\" generate-request-id bool \"true\" enable-opentracing bool \"false\" opentracing-operation-name string \"\" opentracing-location-operation-name string \"\" zipkin-collector-host string \"\" zipkin-collector-port int 9411 zipkin-service-name string \"nginx\" zipkin-sample-rate float 1.0 jaeger-collector-host string \"\" jaeger-collector-port int 6831 jaeger-service-name string \"nginx\" jaeger-sampler-type string \"const\" jaeger-sampler-param string \"1\" jaeger-sampler-host string \"http://127.0.0.1\" jaeger-sampler-port int 5778 jaeger-trace-context-header-name string uber-trace-id jaeger-debug-header string uber-debug-id jaeger-baggage-header string jaeger-baggage jaeger-trace-baggage-header-prefix string uberctx- datadog-collector-host string \"\" datadog-collector-port int 8126 datadog-service-name service \"nginx\" datadog-operation-name-override service \"nginx.handle\" datadog-priority-sampling bool \"true\" datadog-sample-rate float 1.0 main-snippet string \"\" http-snippet string \"\" server-snippet string \"\" location-snippet string \"\" custom-http-errors []int []int proxy-body-size string \"1m\" proxy-connect-timeout int 5 proxy-read-timeout int 60 proxy-send-timeout int 60 proxy-buffers-number int 4 proxy-buffer-size string \"4k\" proxy-cookie-path string \"off\" proxy-cookie-domain string \"off\" proxy-next-upstream string \"error timeout\" proxy-next-upstream-timeout int 0 proxy-next-upstream-tries int 3 proxy-redirect-from string \"off\" proxy-request-buffering string \"on\" ssl-redirect bool \"true\" whitelist-source-range []string []string skip-access-log-urls []string []string limit-rate int 0 limit-rate-after int 0 lua-shared-dicts string \"\" http-redirect-code int 308 proxy-buffering string \"off\" limit-req-status-code int 503 limit-conn-status-code int 503 no-tls-redirect-locations string \"/.well-known/acme-challenge\" global-auth-url string \"\" global-auth-method string \"\" global-auth-signin string \"\" global-auth-response-headers string \"\" global-auth-request-redirect string \"\" global-auth-snippet string \"\" global-auth-cache-key string \"\" global-auth-cache-duration string \"200 202 401 5m\" no-auth-locations string \"/.well-known/acme-challenge\" block-cidrs []string \"\" block-user-agents []string \"\" block-referers []string \"\" proxy-ssl-location-only bool \"false\" default-type string \"text/html\" add-headers \u00b6 Sets custom headers from named configmap before sending traffic to the client. See proxy-set-headers . example allow-backend-server-header \u00b6 Enables the return of the header Server from the backend instead of the generic nginx string. default: is disabled hide-headers \u00b6 Sets additional header that will not be passed from the upstream server to the client response. default: empty References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_hide_header access-log-params \u00b6 Additional params for access_log. For example, buffer=16k, gzip, flush=1m References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log access-log-path \u00b6 Access log path for both http and stream context. Goes to /var/log/nginx/access.log by default. Note: the file /var/log/nginx/access.log is a symlink to /dev/stdout http-access-log-path \u00b6 Access log path for http context globally. default: \"\" Note: If not specified, the access-log-path will be used. stream-access-log-path \u00b6 Access log path for stream context globally. default: \"\" Note: If not specified, the access-log-path will be used. enable-access-log-for-default-backend \u00b6 Enables logging access to default backend. default: is disabled. error-log-path \u00b6 Error log path. Goes to /var/log/nginx/error.log by default. Note: the file /var/log/nginx/error.log is a symlink to /dev/stderr References: http://nginx.org/en/docs/ngx_core_module.html#error_log enable-modsecurity \u00b6 Enables the modsecurity module for NGINX. default: is disabled enable-owasp-modsecurity-crs \u00b6 Enables the OWASP ModSecurity Core Rule Set (CRS). default: is disabled modsecurity-snippet \u00b6 Adds custom rules to modsecurity section of nginx configration client-header-buffer-size \u00b6 Allows to configure a custom buffer size for reading client request header. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_buffer_size client-header-timeout \u00b6 Defines a timeout for reading client request header, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_timeout client-body-buffer-size \u00b6 Sets buffer size for reading client request body. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size client-body-timeout \u00b6 Defines a timeout for reading client request body, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_timeout disable-access-log \u00b6 Disables the Access Log from the entire Ingress Controller. default: '\"false\"' References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log disable-ipv6 \u00b6 Disable listening on IPV6. default: false ; IPv6 listening is enabled disable-ipv6-dns \u00b6 Disable IPV6 for nginx DNS resolver. default: false ; IPv6 resolving enabled. enable-underscores-in-headers \u00b6 Enables underscores in header names. default: is disabled enable-ocsp \u00b6 Enables Online Certificate Status Protocol stapling (OCSP) support. default: is disabled ignore-invalid-headers \u00b6 Set if header fields with invalid names should be ignored. default: is enabled retry-non-idempotent \u00b6 Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error in the upstream server. The previous behavior can be restored using the value \"true\". error-log-level \u00b6 Configures the logging level of errors. Log levels above are listed in the order of increasing severity. References: http://nginx.org/en/docs/ngx_core_module.html#error_log http2-max-field-size \u00b6 Limits the maximum size of an HPACK-compressed request header field. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_field_size http2-max-header-size \u00b6 Limits the maximum size of the entire request header list after HPACK decompression. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_header_size http2-max-requests \u00b6 Sets the maximum number of requests (including push requests) that can be served through one HTTP/2 connection, after which the next client request will lead to connection closing and the need of establishing a new connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_requests http2-max-concurrent-streams \u00b6 Sets the maximum number of concurrent HTTP/2 streams in a connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_concurrent_streams hsts \u00b6 Enables or disables the header HSTS in servers running SSL. HTTP Strict Transport Security (often abbreviated as HSTS) is a security feature (HTTP header) that tell browsers that it should only be communicated with using HTTPS, instead of using HTTP. It provides protection against protocol downgrade attacks and cookie theft. References: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server hsts-include-subdomains \u00b6 Enables or disables the use of HSTS in all the subdomains of the server-name. hsts-max-age \u00b6 Sets the time, in seconds, that the browser should remember that this site is only to be accessed using HTTPS. hsts-preload \u00b6 Enables or disables the preload attribute in the HSTS feature (when it is enabled) dd keep-alive \u00b6 Sets the time during which a keep-alive client connection will stay open on the server side. The zero value disables keep-alive client connections. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_timeout keep-alive-requests \u00b6 Sets the maximum number of requests that can be served through one keep-alive connection. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_requests large-client-header-buffers \u00b6 Sets the maximum number and size of buffers used for reading large client request header. default: 4 8k References: http://nginx.org/en/docs/http/ngx_http_core_module.html#large_client_header_buffers log-format-escape-json \u00b6 Sets if the escape parameter allows JSON (\"true\") or default characters escaping in variables (\"false\") Sets the nginx log format . log-format-upstream \u00b6 Sets the nginx log format . Example for json output: log-format-upstream: ' { \"time\" : \"$time_iso8601\" , \"remote_addr\" : \"$proxy_protocol_addr\" , \"x-forward-for\" : \"$proxy_add_x_forwarded_for\" , \"request_id\" : \"$req_id\" , \"remote_user\" : \"$remote_user\" , \"bytes_sent\" : $bytes_sent , \"request_time\" : $request_time , \"status\" : $status , \"vhost\" : \"$host\" , \"request_proto\" : \"$server_protocol\" , \"path\" : \"$uri\" , \"request_query\" : \"$args\" , \"request_length\" : $request_length , \"duration\" : $request_time , \"method\" : \"$request_method\" , \"http_referrer\" : \"$http_referer\" , \"http_user_agent\" : \"$http_user_agent\" } ' Please check the log-format for definition of each field. log-format-stream \u00b6 Sets the nginx stream format . enable-multi-accept \u00b6 If disabled, a worker process will accept one new connection at a time. Otherwise, a worker process will accept all new connections at a time. default: true References: http://nginx.org/en/docs/ngx_core_module.html#multi_accept max-worker-connections \u00b6 Sets the maximum number of simultaneous connections that can be opened by each worker process. 0 will use the value of max-worker-open-files . default: 16384 Tip Using 0 in scenarios of high load improves performance at the cost of increasing RAM utilization (even on idle). max-worker-open-files \u00b6 Sets the maximum number of files that can be opened by each worker process. The default of 0 means \"max open files (system's limit) / worker-processes - 1024\". default: 0 map-hash-bucket-size \u00b6 Sets the bucket size for the map variables hash tables . The details of setting up hash tables are provided in a separate document . proxy-real-ip-cidr \u00b6 If use-forwarded-headers or use-proxy-protocol is enabled, proxy-real-ip-cidr defines the default the IP/network address of your external load balancer. proxy-set-headers \u00b6 Sets custom headers from named configmap before sending traffic to backends. The value format is namespace/name. See example server-name-hash-max-size \u00b6 Sets the maximum size of the server names hash tables used in server names,map directive\u2019s values, MIME types, names of request header strings, etc. References: http://nginx.org/en/docs/hash.html server-name-hash-bucket-size \u00b6 Sets the size of the bucket for the server names hash tables. References: http://nginx.org/en/docs/hash.html http://nginx.org/en/docs/http/ngx_http_core_module.html#server_names_hash_bucket_size proxy-headers-hash-max-size \u00b6 Sets the maximum size of the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_max_size reuse-port \u00b6 Instructs NGINX to create an individual listening socket for each worker process (using the SO_REUSEPORT socket option), allowing a kernel to distribute incoming connections between worker processes default: true proxy-headers-hash-bucket-size \u00b6 Sets the size of the bucket for the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_bucket_size plugins \u00b6 Activates plugins installed in /etc/nginx/lua/plugins . Refer to ingress-nginx plugins README for more information on how to write and install a plugin. server-tokens \u00b6 Send NGINX Server header in responses and display NGINX version in error pages. default: is enabled ssl-ciphers \u00b6 Sets the ciphers list to enable. The ciphers are specified in the format understood by the OpenSSL library. The default cipher list is: ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 . The ordering of a ciphersuite is very important because it decides which algorithms are going to be selected in priority. The recommendation above prioritizes algorithms that provide perfect forward secrecy . Please check the Mozilla SSL Configuration Generator . Note: ssl_prefer_server_ciphers directive will be enabled by default for http context. ssl-ecdh-curve \u00b6 Specifies a curve for ECDHE ciphers. References: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ecdh_curve ssl-dh-param \u00b6 Sets the name of the secret that contains Diffie-Hellman key to help with \"Perfect Forward Secrecy\". References: https://wiki.openssl.org/index.php/Diffie-Hellman_parameters https://wiki.mozilla.org/Security/Server_Side_TLS#DHE_handshake_and_dhparam http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_dhparam ssl-protocols \u00b6 Sets the SSL protocols to use. The default is: TLSv1.2 TLSv1.3 . Please check the result of the configuration using https://ssllabs.com/ssltest/analyze.html or https://testssl.sh . ssl-early-data \u00b6 Enables or disables TLS 1.3 early data , also known as Zero Round Trip Time Resumption (0-RTT). This requires ssl-protocols to have TLSv1.3 enabled. Enable this with caution, because requests sent within early data are subject to replay attacks . ssl_early_data . The default is: false . ssl-session-cache \u00b6 Enables or disables the use of shared SSL cache among worker processes. ssl-session-cache-size \u00b6 Sets the size of the SSL shared session cache between all worker processes. ssl-session-tickets \u00b6 Enables or disables session resumption through TLS session tickets . ssl-session-ticket-key \u00b6 Sets the secret key used to encrypt and decrypt TLS session tickets. The value must be a valid base64 string. To create a ticket: openssl rand 80 | openssl enc -A -base64 TLS session ticket-key , by default, a randomly generated key is used. ssl-session-timeout \u00b6 Sets the time during which a client may reuse the session parameters stored in a cache. ssl-buffer-size \u00b6 Sets the size of the SSL buffer used for sending data. The default of 4k helps NGINX to improve TLS Time To First Byte (TTTFB). References: https://www.igvita.com/2013/12/16/optimizing-nginx-tls-time-to-first-byte/ use-proxy-protocol \u00b6 Enables or disables the PROXY protocol to receive client connection (real IP address) information passed through proxy servers and load balancers such as HAProxy and Amazon Elastic Load Balancer (ELB). proxy-protocol-header-timeout \u00b6 Sets the timeout value for receiving the proxy-protocol headers. The default of 5 seconds prevents the TLS passthrough handler from waiting indefinitely on a dropped connection. default: 5s use-gzip \u00b6 Enables or disables compression of HTTP responses using the \"gzip\" module . MIME types to compress are controlled by gzip-types . default: true use-geoip \u00b6 Enables or disables \"geoip\" module that creates variables with values depending on the client IP address, using the precompiled MaxMind databases. default: true Note: MaxMind legacy databases are discontinued and will not receive updates after 2019-01-02, cf. discontinuation notice . Consider use-geoip2 below. use-geoip2 \u00b6 Enables the geoip2 module for NGINX. Since 0.27.0 and due to a change in the MaxMind databases a license is required to have access to the databases. For this reason, it is required to define a new flag --maxmind-license-key in the ingress controller deployment to download the databases needed during the initialization of the ingress controller. Alternatively, it is possible to use a volume to mount the files /etc/nginx/geoip/GeoLite2-City.mmdb and /etc/nginx/geoip/GeoLite2-ASN.mmdb , avoiding the overhead of the download. Important If the feature is enabled but the files are missing, GeoIP2 will not be enabled. default: false enable-brotli \u00b6 Enables or disables compression of HTTP responses using the \"brotli\" module . The default mime type list to compress is: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . default: is disabled Note: Brotli does not works in Safari < 11. For more information see https://caniuse.com/#feat=brotli brotli-level \u00b6 Sets the Brotli Compression Level that will be used. default: 4 brotli-types \u00b6 Sets the MIME Types that will be compressed on-the-fly by brotli. default: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component use-http2 \u00b6 Enables or disables HTTP/2 support in secure connections. gzip-level \u00b6 Sets the gzip Compression Level that will be used. default: 5 gzip-min-length \u00b6 Minimum length of responses to be returned to the client before it is eligible for gzip compression, in bytes. default: 256 gzip-types \u00b6 Sets the MIME types in addition to \"text/html\" to compress. The special value \"*\" matches any MIME type. Responses with the \"text/html\" type are always compressed if use-gzip is enabled. default: application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . worker-processes \u00b6 Sets the number of worker processes . The default of \"auto\" means number of available CPU cores. worker-cpu-affinity \u00b6 Binds worker processes to the sets of CPUs. worker_cpu_affinity . By default worker processes are not bound to any specific CPUs. The value can be: \"\": empty string indicate no affinity is applied. cpumask: e.g. 0001 0010 0100 1000 to bind processes to specific cpus. auto: binding worker processes automatically to available CPUs. worker-shutdown-timeout \u00b6 Sets a timeout for Nginx to wait for worker to gracefully shutdown . default: \"240s\" load-balance \u00b6 Sets the algorithm to use for load balancing. The value can either be: round_robin: to use the default round robin loadbalancer ewma: to use the Peak EWMA method for routing ( implementation ) The default is round_robin . To load balance using consistent hashing of IP or other variables, consider the nginx.ingress.kubernetes.io/upstream-hash-by annotation. To load balance using session cookies, consider the nginx.ingress.kubernetes.io/affinity annotation. References: http://nginx.org/en/docs/http/load_balancing.html variables-hash-bucket-size \u00b6 Sets the bucket size for the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_bucket_size variables-hash-max-size \u00b6 Sets the maximum size of the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_max_size upstream-keepalive-connections \u00b6 Activates the cache for connections to upstream servers. The connections parameter sets the maximum number of idle keepalive connections to upstream servers that are preserved in the cache of each worker process. When this number is exceeded, the least recently used connections are closed. default: 32 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive upstream-keepalive-timeout \u00b6 Sets a timeout during which an idle keepalive connection to an upstream server will stay open. default: 60 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_timeout upstream-keepalive-requests \u00b6 Sets the maximum number of requests that can be served through one keepalive connection. After the maximum number of requests is made, the connection is closed. default: 100 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_requests limit-conn-zone-variable \u00b6 Sets parameters for a shared memory zone that will keep states for various keys of limit_conn_zone . The default of \"$binary_remote_addr\" variable\u2019s size is always 4 bytes for IPv4 addresses or 16 bytes for IPv6 addresses. proxy-stream-timeout \u00b6 Sets the timeout between two successive read or write operations on client or proxied server connections. If no data is transmitted within this time, the connection is closed. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_timeout proxy-stream-responses \u00b6 Sets the number of datagrams expected from the proxied server in response to the client request if the UDP protocol is used. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_responses bind-address \u00b6 Sets the addresses on which the server will accept requests instead of *. It should be noted that these addresses must exist in the runtime environment or the controller will crash loop. use-forwarded-headers \u00b6 If true, NGINX passes the incoming X-Forwarded-* headers to upstreams. Use this option when NGINX is behind another L7 proxy / load balancer that is setting these headers. If false, NGINX ignores incoming X-Forwarded-* headers, filling them with the request information it sees. Use this option if NGINX is exposed directly to the internet, or it's behind a L3/packet-based load balancer that doesn't alter the source IP in the packets. enable-real-ip \u00b6 enable-real-ip enables the configuration of http://nginx.org/en/docs/http/ngx_http_realip_module.html . Specific attributes of the module can be configured further by using forwarded-for-header and proxy-real-ip-cidr settings. forwarded-for-header \u00b6 Sets the header field for identifying the originating IP address of a client. default: X-Forwarded-For compute-full-forwarded-for \u00b6 Append the remote address to the X-Forwarded-For header instead of replacing it. When this option is enabled, the upstream application is responsible for extracting the client IP based on its own list of trusted proxies. proxy-add-original-uri-header \u00b6 Adds an X-Original-Uri header with the original request URI to the backend request generate-request-id \u00b6 Ensures that X-Request-ID is defaulted to a random value, if no X-Request-ID is present in the request enable-opentracing \u00b6 Enables the nginx Opentracing extension. default: is disabled References: https://github.com/opentracing-contrib/nginx-opentracing opentracing-operation-name \u00b6 Specifies a custom name for the server span. default: is empty For example, set to \"HTTP $request_method $uri\". opentracing-location-operation-name \u00b6 Specifies a custom name for the location span. default: is empty For example, set to \"HTTP $request_method $uri\". zipkin-collector-host \u00b6 Specifies the host to use when uploading traces. It must be a valid URL. zipkin-collector-port \u00b6 Specifies the port to use when uploading traces. default: 9411 zipkin-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx zipkin-sample-rate \u00b6 Specifies sample rate for any traces created. default: 1.0 jaeger-collector-host \u00b6 Specifies the host to use when uploading traces. It must be a valid URL. jaeger-collector-port \u00b6 Specifies the port to use when uploading traces. default: 6831 jaeger-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx jaeger-sampler-type \u00b6 Specifies the sampler to be used when sampling traces. The available samplers are: const, probabilistic, ratelimiting, remote. default: const jaeger-sampler-param \u00b6 Specifies the argument to be passed to the sampler constructor. Must be a number. For const this should be 0 to never sample and 1 to always sample. default: 1 jaeger-sampler-host \u00b6 Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. Leave blank to use default value (localhost). default: http://127.0.0.1 jaeger-sampler-port \u00b6 Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. default: 5778 jaeger-trace-context-header-name \u00b6 Specifies the header name used for passing trace context. default: uber-trace-id jaeger-debug-header \u00b6 Specifies the header name used for force sampling. default: jaeger-debug-id jaeger-baggage-header \u00b6 Specifies the header name used to submit baggage if there is no root span. default: jaeger-baggage jaeger-tracer-baggage-header-prefix \u00b6 Specifies the header prefix used to propagate baggage. default: uberctx- datadog-collector-host \u00b6 Specifies the datadog agent host to use when uploading traces. It must be a valid URL. datadog-collector-port \u00b6 Specifies the port to use when uploading traces. default: 8126 datadog-service-name \u00b6 Specifies the service name to use for any traces created. default: nginx datadog-operation-name-override \u00b6 Overrides the operation naem to use for any traces crated. default: nginx.handle datadog-priority-sampling \u00b6 Specifies to use client-side sampling. If true disables client-side sampling (thus ignoring sample_rate ) and enables distributed priority sampling, where traces are sampled based on a combination of user-assigned priorities and configuration from the agent. default: true datadog-sample-rate \u00b6 Specifies sample rate for any traces created. This is effective only when datadog-priority-sampling is false default: 1.0 main-snippet \u00b6 Adds custom configuration to the main section of the nginx configuration. http-snippet \u00b6 Adds custom configuration to the http section of the nginx configuration. server-snippet \u00b6 Adds custom configuration to all the servers in the nginx configuration. location-snippet \u00b6 Adds custom configuration to all the locations in the nginx configuration. You can not use this to add new locations that proxy to the Kubernetes pods, as the snippet does not have access to the Go template functions. If you want to add custom locations you will have to provide your own nginx.tmpl . custom-http-errors \u00b6 Enables which HTTP codes should be passed for processing with the error_page directive Setting at least one code also enables proxy_intercept_errors which are required to process error_page. Example usage: custom-http-errors: 404,415 proxy-body-size \u00b6 Sets the maximum allowed size of the client request body. See NGINX client_max_body_size . proxy-connect-timeout \u00b6 Sets the timeout for establishing a connection with a proxied server . It should be noted that this timeout cannot usually exceed 75 seconds. proxy-read-timeout \u00b6 Sets the timeout in seconds for reading a response from the proxied server . The timeout is set only between two successive read operations, not for the transmission of the whole response. proxy-send-timeout \u00b6 Sets the timeout in seconds for transmitting a request to the proxied server . The timeout is set only between two successive write operations, not for the transmission of the whole request. proxy-buffers-number \u00b6 Sets the number of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header. proxy-buffer-size \u00b6 Sets the size of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header. proxy-cookie-path \u00b6 Sets a text that should be changed in the path attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response. proxy-cookie-domain \u00b6 Sets a text that should be changed in the domain attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response. proxy-next-upstream \u00b6 Specifies in which cases a request should be passed to the next server. proxy-next-upstream-timeout \u00b6 Limits the time in seconds during which a request can be passed to the next server. proxy-next-upstream-tries \u00b6 Limit the number of possible tries a request should be passed to the next server. proxy-redirect-from \u00b6 Sets the original text that should be changed in the \"Location\" and \"Refresh\" header fields of a proxied server response. default: off References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_redirect proxy-request-buffering \u00b6 Enables or disables buffering of a client request body . ssl-redirect \u00b6 Sets the global value of redirects (301) to HTTPS if the server has a TLS certificate (defined in an Ingress rule). default: \"true\" whitelist-source-range \u00b6 Sets the default whitelisted IPs for each server block. This can be overwritten by an annotation on an Ingress rule. See ngx_http_access_module . skip-access-log-urls \u00b6 Sets a list of URLs that should not appear in the NGINX access log. This is useful with urls like /health or health-check that make \"complex\" reading the logs. default: is empty limit-rate \u00b6 Limits the rate of response transmission to a client. The rate is specified in bytes per second. The zero value disables rate limiting. The limit is set per a request, and so if a client simultaneously opens two connections, the overall rate will be twice as much as the specified limit. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate limit-rate-after \u00b6 Sets the initial amount after which the further transmission of a response to a client will be rate limited. lua-shared-dicts \u00b6 Customize default Lua shared dictionaries or define more. You can use the following syntax to do so: lua-shared-dicts: \"<my dict name>: <my dict size>, [<my dict name>: <my dict size>], ...\" For example following will set default certificate_data dictionary to 100M and will introduce a new dictionary called my_custom_plugin : lua-shared-dicts: \"certificate_data: 100, my_custom_plugin: 5\" References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate_after http-redirect-code \u00b6 Sets the HTTP status code to be used in redirects. Supported codes are 301 , 302 , 307 and 308 default: 308 Why the default code is 308? RFC 7238 was created to define the 308 (Permanent Redirect) status code that is similar to 301 (Moved Permanently) but it keeps the payload in the redirect. This is important if we send a redirect in methods like POST. proxy-buffering \u00b6 Enables or disables buffering of responses from the proxied server . limit-req-status-code \u00b6 Sets the status code to return in response to rejected requests . default: 503 limit-conn-status-code \u00b6 Sets the status code to return in response to rejected connections . default: 503 no-tls-redirect-locations \u00b6 A comma-separated list of locations on which http requests will never get redirected to their https counterpart. default: \"/.well-known/acme-challenge\" global-auth-url \u00b6 A url to an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-url . Locations that should not get authenticated can be listed using no-auth-locations See no-auth-locations . In addition, each service can be excluded from authentication via annotation enable-global-auth set to \"false\". default: \"\" References: https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md#external-authentication global-auth-method \u00b6 A HTTP method to use for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-method . default: \"\" global-auth-signin \u00b6 Sets the location of the error page for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-signin . default: \"\" global-auth-response-headers \u00b6 Sets the headers to pass to backend once authentication request completes. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-response-headers . default: \"\" global-auth-request-redirect \u00b6 Sets the X-Auth-Request-Redirect header value. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\" global-auth-snippet \u00b6 Sets a custom snippet to use with external authentication. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\" global-auth-cache-key \u00b6 Enables caching for global auth requests. Specify a lookup key for auth responses, e.g. $remote_user$http_authorization . global-auth-cache-duration \u00b6 Set a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m . no-auth-locations \u00b6 A comma-separated list of locations that should not get authenticated. default: \"/.well-known/acme-challenge\" block-cidrs \u00b6 A comma-separated list of IP addresses (or subnets), request from which have to be blocked globally. References: http://nginx.org/en/docs/http/ngx_http_access_module.html#deny block-user-agents \u00b6 A comma-separated list of User-Agent, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map block-referers \u00b6 A comma-separated list of Referers, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map proxy-ssl-location-only \u00b6 Set if proxy-ssl parameters should be applied only on locations and not on servers. default: is disabled default-type \u00b6 Sets the default MIME type of a response. default: text/html References: http://nginx.org/en/docs/http/ngx_http_core_module.html#default_type","title":"ConfigMap"},{"location":"user-guide/nginx-configuration/configmap/#configmaps","text":"ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. The ConfigMap API resource stores configuration data as key-value pairs. The data provides the configurations for system components for the nginx-controller. In order to overwrite nginx-controller configuration values as seen in config.go , you can add key-value pairs to the data section of the config-map. For Example: data : map-hash-bucket-size : \"128\" ssl-protocols : SSLv2 Important The key and values in a ConfigMap can only be strings. This means that we want a value with boolean values we need to quote the values, like \"true\" or \"false\". Same for numbers, like \"100\". \"Slice\" types (defined below as []string or []int ) can be provided as a comma-delimited string.","title":"ConfigMaps"},{"location":"user-guide/nginx-configuration/configmap/#configuration-options","text":"The following table shows a configuration option's name, type, and the default value: name type default add-headers string \"\" allow-backend-server-header bool \"false\" hide-headers string array empty access-log-params string \"\" access-log-path string \"/var/log/nginx/access.log\" http-access-log-path string \"\" stream-access-log-path string \"\" enable-access-log-for-default-backend bool \"false\" error-log-path string \"/var/log/nginx/error.log\" enable-modsecurity bool \"false\" modsecurity-snippet string \"\" enable-owasp-modsecurity-crs bool \"false\" client-header-buffer-size string \"1k\" client-header-timeout int 60 client-body-buffer-size string \"8k\" client-body-timeout int 60 disable-access-log bool false disable-ipv6 bool false disable-ipv6-dns bool false enable-underscores-in-headers bool false enable-ocsp bool false ignore-invalid-headers bool true retry-non-idempotent bool \"false\" error-log-level string \"notice\" http2-max-field-size string \"4k\" http2-max-header-size string \"16k\" http2-max-requests int 1000 http2-max-concurrent-streams int 1000 hsts bool \"true\" hsts-include-subdomains bool \"true\" hsts-max-age string \"15724800\" hsts-preload bool \"false\" keep-alive int 75 keep-alive-requests int 100 large-client-header-buffers string \"4 8k\" log-format-escape-json bool \"false\" log-format-upstream string $remote_addr - $remote_user [$time_local] \"$request\" $status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" $request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id log-format-stream string [$remote_addr] [$time_local] $protocol $status $bytes_sent $bytes_received $session_time enable-multi-accept bool \"true\" max-worker-connections int 16384 max-worker-open-files int 0 map-hash-bucket-size int 64 nginx-status-ipv4-whitelist []string \"127.0.0.1\" nginx-status-ipv6-whitelist []string \"::1\" proxy-real-ip-cidr []string \"0.0.0.0/0\" proxy-set-headers string \"\" server-name-hash-max-size int 1024 server-name-hash-bucket-size int <size of the processor\u2019s cache line> proxy-headers-hash-max-size int 512 proxy-headers-hash-bucket-size int 64 plugins []string reuse-port bool \"true\" server-tokens bool \"true\" ssl-ciphers string \"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384\" ssl-ecdh-curve string \"auto\" ssl-dh-param string \"\" ssl-protocols string \"TLSv1.2 TLSv1.3\" ssl-session-cache bool \"true\" ssl-session-cache-size string \"10m\" ssl-session-tickets bool \"true\" ssl-session-ticket-key string <Randomly Generated> ssl-session-timeout string \"10m\" ssl-buffer-size string \"4k\" use-proxy-protocol bool \"false\" proxy-protocol-header-timeout string \"5s\" use-gzip bool \"true\" use-geoip bool \"true\" use-geoip2 bool \"false\" enable-brotli bool \"false\" brotli-level int 4 brotli-types string \"application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" use-http2 bool \"true\" gzip-level int 5 gzip-types string \"application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component\" worker-processes string <Number of CPUs> worker-cpu-affinity string \"\" worker-shutdown-timeout string \"240s\" load-balance string \"round_robin\" variables-hash-bucket-size int 128 variables-hash-max-size int 2048 upstream-keepalive-connections int 32 upstream-keepalive-timeout int 60 upstream-keepalive-requests int 100 limit-conn-zone-variable string \"$binary_remote_addr\" proxy-stream-timeout string \"600s\" proxy-stream-responses int 1 bind-address []string \"\" use-forwarded-headers bool \"false\" enable-real-ip bool \"false\" forwarded-for-header string \"X-Forwarded-For\" compute-full-forwarded-for bool \"false\" proxy-add-original-uri-header bool \"false\" generate-request-id bool \"true\" enable-opentracing bool \"false\" opentracing-operation-name string \"\" opentracing-location-operation-name string \"\" zipkin-collector-host string \"\" zipkin-collector-port int 9411 zipkin-service-name string \"nginx\" zipkin-sample-rate float 1.0 jaeger-collector-host string \"\" jaeger-collector-port int 6831 jaeger-service-name string \"nginx\" jaeger-sampler-type string \"const\" jaeger-sampler-param string \"1\" jaeger-sampler-host string \"http://127.0.0.1\" jaeger-sampler-port int 5778 jaeger-trace-context-header-name string uber-trace-id jaeger-debug-header string uber-debug-id jaeger-baggage-header string jaeger-baggage jaeger-trace-baggage-header-prefix string uberctx- datadog-collector-host string \"\" datadog-collector-port int 8126 datadog-service-name service \"nginx\" datadog-operation-name-override service \"nginx.handle\" datadog-priority-sampling bool \"true\" datadog-sample-rate float 1.0 main-snippet string \"\" http-snippet string \"\" server-snippet string \"\" location-snippet string \"\" custom-http-errors []int []int proxy-body-size string \"1m\" proxy-connect-timeout int 5 proxy-read-timeout int 60 proxy-send-timeout int 60 proxy-buffers-number int 4 proxy-buffer-size string \"4k\" proxy-cookie-path string \"off\" proxy-cookie-domain string \"off\" proxy-next-upstream string \"error timeout\" proxy-next-upstream-timeout int 0 proxy-next-upstream-tries int 3 proxy-redirect-from string \"off\" proxy-request-buffering string \"on\" ssl-redirect bool \"true\" whitelist-source-range []string []string skip-access-log-urls []string []string limit-rate int 0 limit-rate-after int 0 lua-shared-dicts string \"\" http-redirect-code int 308 proxy-buffering string \"off\" limit-req-status-code int 503 limit-conn-status-code int 503 no-tls-redirect-locations string \"/.well-known/acme-challenge\" global-auth-url string \"\" global-auth-method string \"\" global-auth-signin string \"\" global-auth-response-headers string \"\" global-auth-request-redirect string \"\" global-auth-snippet string \"\" global-auth-cache-key string \"\" global-auth-cache-duration string \"200 202 401 5m\" no-auth-locations string \"/.well-known/acme-challenge\" block-cidrs []string \"\" block-user-agents []string \"\" block-referers []string \"\" proxy-ssl-location-only bool \"false\" default-type string \"text/html\"","title":"Configuration options"},{"location":"user-guide/nginx-configuration/configmap/#add-headers","text":"Sets custom headers from named configmap before sending traffic to the client. See proxy-set-headers . example","title":"add-headers"},{"location":"user-guide/nginx-configuration/configmap/#allow-backend-server-header","text":"Enables the return of the header Server from the backend instead of the generic nginx string. default: is disabled","title":"allow-backend-server-header"},{"location":"user-guide/nginx-configuration/configmap/#hide-headers","text":"Sets additional header that will not be passed from the upstream server to the client response. default: empty References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_hide_header","title":"hide-headers"},{"location":"user-guide/nginx-configuration/configmap/#access-log-params","text":"Additional params for access_log. For example, buffer=16k, gzip, flush=1m References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log","title":"access-log-params"},{"location":"user-guide/nginx-configuration/configmap/#access-log-path","text":"Access log path for both http and stream context. Goes to /var/log/nginx/access.log by default. Note: the file /var/log/nginx/access.log is a symlink to /dev/stdout","title":"access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#http-access-log-path","text":"Access log path for http context globally. default: \"\" Note: If not specified, the access-log-path will be used.","title":"http-access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#stream-access-log-path","text":"Access log path for stream context globally. default: \"\" Note: If not specified, the access-log-path will be used.","title":"stream-access-log-path"},{"location":"user-guide/nginx-configuration/configmap/#enable-access-log-for-default-backend","text":"Enables logging access to default backend. default: is disabled.","title":"enable-access-log-for-default-backend"},{"location":"user-guide/nginx-configuration/configmap/#error-log-path","text":"Error log path. Goes to /var/log/nginx/error.log by default. Note: the file /var/log/nginx/error.log is a symlink to /dev/stderr References: http://nginx.org/en/docs/ngx_core_module.html#error_log","title":"error-log-path"},{"location":"user-guide/nginx-configuration/configmap/#enable-modsecurity","text":"Enables the modsecurity module for NGINX. default: is disabled","title":"enable-modsecurity"},{"location":"user-guide/nginx-configuration/configmap/#enable-owasp-modsecurity-crs","text":"Enables the OWASP ModSecurity Core Rule Set (CRS). default: is disabled","title":"enable-owasp-modsecurity-crs"},{"location":"user-guide/nginx-configuration/configmap/#modsecurity-snippet","text":"Adds custom rules to modsecurity section of nginx configration","title":"modsecurity-snippet"},{"location":"user-guide/nginx-configuration/configmap/#client-header-buffer-size","text":"Allows to configure a custom buffer size for reading client request header. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_buffer_size","title":"client-header-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#client-header-timeout","text":"Defines a timeout for reading client request header, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_timeout","title":"client-header-timeout"},{"location":"user-guide/nginx-configuration/configmap/#client-body-buffer-size","text":"Sets buffer size for reading client request body. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size","title":"client-body-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#client-body-timeout","text":"Defines a timeout for reading client request body, in seconds. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_timeout","title":"client-body-timeout"},{"location":"user-guide/nginx-configuration/configmap/#disable-access-log","text":"Disables the Access Log from the entire Ingress Controller. default: '\"false\"' References: http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log","title":"disable-access-log"},{"location":"user-guide/nginx-configuration/configmap/#disable-ipv6","text":"Disable listening on IPV6. default: false ; IPv6 listening is enabled","title":"disable-ipv6"},{"location":"user-guide/nginx-configuration/configmap/#disable-ipv6-dns","text":"Disable IPV6 for nginx DNS resolver. default: false ; IPv6 resolving enabled.","title":"disable-ipv6-dns"},{"location":"user-guide/nginx-configuration/configmap/#enable-underscores-in-headers","text":"Enables underscores in header names. default: is disabled","title":"enable-underscores-in-headers"},{"location":"user-guide/nginx-configuration/configmap/#enable-ocsp","text":"Enables Online Certificate Status Protocol stapling (OCSP) support. default: is disabled","title":"enable-ocsp"},{"location":"user-guide/nginx-configuration/configmap/#ignore-invalid-headers","text":"Set if header fields with invalid names should be ignored. default: is enabled","title":"ignore-invalid-headers"},{"location":"user-guide/nginx-configuration/configmap/#retry-non-idempotent","text":"Since 1.9.13 NGINX will not retry non-idempotent requests (POST, LOCK, PATCH) in case of an error in the upstream server. The previous behavior can be restored using the value \"true\".","title":"retry-non-idempotent"},{"location":"user-guide/nginx-configuration/configmap/#error-log-level","text":"Configures the logging level of errors. Log levels above are listed in the order of increasing severity. References: http://nginx.org/en/docs/ngx_core_module.html#error_log","title":"error-log-level"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-field-size","text":"Limits the maximum size of an HPACK-compressed request header field. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_field_size","title":"http2-max-field-size"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-header-size","text":"Limits the maximum size of the entire request header list after HPACK decompression. References: https://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_header_size","title":"http2-max-header-size"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-requests","text":"Sets the maximum number of requests (including push requests) that can be served through one HTTP/2 connection, after which the next client request will lead to connection closing and the need of establishing a new connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_requests","title":"http2-max-requests"},{"location":"user-guide/nginx-configuration/configmap/#http2-max-concurrent-streams","text":"Sets the maximum number of concurrent HTTP/2 streams in a connection. References: http://nginx.org/en/docs/http/ngx_http_v2_module.html#http2_max_concurrent_streams","title":"http2-max-concurrent-streams"},{"location":"user-guide/nginx-configuration/configmap/#hsts","text":"Enables or disables the header HSTS in servers running SSL. HTTP Strict Transport Security (often abbreviated as HSTS) is a security feature (HTTP header) that tell browsers that it should only be communicated with using HTTPS, instead of using HTTP. It provides protection against protocol downgrade attacks and cookie theft. References: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server","title":"hsts"},{"location":"user-guide/nginx-configuration/configmap/#hsts-include-subdomains","text":"Enables or disables the use of HSTS in all the subdomains of the server-name.","title":"hsts-include-subdomains"},{"location":"user-guide/nginx-configuration/configmap/#hsts-max-age","text":"Sets the time, in seconds, that the browser should remember that this site is only to be accessed using HTTPS.","title":"hsts-max-age"},{"location":"user-guide/nginx-configuration/configmap/#hsts-preload","text":"Enables or disables the preload attribute in the HSTS feature (when it is enabled) dd","title":"hsts-preload"},{"location":"user-guide/nginx-configuration/configmap/#keep-alive","text":"Sets the time during which a keep-alive client connection will stay open on the server side. The zero value disables keep-alive client connections. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_timeout","title":"keep-alive"},{"location":"user-guide/nginx-configuration/configmap/#keep-alive-requests","text":"Sets the maximum number of requests that can be served through one keep-alive connection. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_requests","title":"keep-alive-requests"},{"location":"user-guide/nginx-configuration/configmap/#large-client-header-buffers","text":"Sets the maximum number and size of buffers used for reading large client request header. default: 4 8k References: http://nginx.org/en/docs/http/ngx_http_core_module.html#large_client_header_buffers","title":"large-client-header-buffers"},{"location":"user-guide/nginx-configuration/configmap/#log-format-escape-json","text":"Sets if the escape parameter allows JSON (\"true\") or default characters escaping in variables (\"false\") Sets the nginx log format .","title":"log-format-escape-json"},{"location":"user-guide/nginx-configuration/configmap/#log-format-upstream","text":"Sets the nginx log format . Example for json output: log-format-upstream: ' { \"time\" : \"$time_iso8601\" , \"remote_addr\" : \"$proxy_protocol_addr\" , \"x-forward-for\" : \"$proxy_add_x_forwarded_for\" , \"request_id\" : \"$req_id\" , \"remote_user\" : \"$remote_user\" , \"bytes_sent\" : $bytes_sent , \"request_time\" : $request_time , \"status\" : $status , \"vhost\" : \"$host\" , \"request_proto\" : \"$server_protocol\" , \"path\" : \"$uri\" , \"request_query\" : \"$args\" , \"request_length\" : $request_length , \"duration\" : $request_time , \"method\" : \"$request_method\" , \"http_referrer\" : \"$http_referer\" , \"http_user_agent\" : \"$http_user_agent\" } ' Please check the log-format for definition of each field.","title":"log-format-upstream"},{"location":"user-guide/nginx-configuration/configmap/#log-format-stream","text":"Sets the nginx stream format .","title":"log-format-stream"},{"location":"user-guide/nginx-configuration/configmap/#enable-multi-accept","text":"If disabled, a worker process will accept one new connection at a time. Otherwise, a worker process will accept all new connections at a time. default: true References: http://nginx.org/en/docs/ngx_core_module.html#multi_accept","title":"enable-multi-accept"},{"location":"user-guide/nginx-configuration/configmap/#max-worker-connections","text":"Sets the maximum number of simultaneous connections that can be opened by each worker process. 0 will use the value of max-worker-open-files . default: 16384 Tip Using 0 in scenarios of high load improves performance at the cost of increasing RAM utilization (even on idle).","title":"max-worker-connections"},{"location":"user-guide/nginx-configuration/configmap/#max-worker-open-files","text":"Sets the maximum number of files that can be opened by each worker process. The default of 0 means \"max open files (system's limit) / worker-processes - 1024\". default: 0","title":"max-worker-open-files"},{"location":"user-guide/nginx-configuration/configmap/#map-hash-bucket-size","text":"Sets the bucket size for the map variables hash tables . The details of setting up hash tables are provided in a separate document .","title":"map-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-real-ip-cidr","text":"If use-forwarded-headers or use-proxy-protocol is enabled, proxy-real-ip-cidr defines the default the IP/network address of your external load balancer.","title":"proxy-real-ip-cidr"},{"location":"user-guide/nginx-configuration/configmap/#proxy-set-headers","text":"Sets custom headers from named configmap before sending traffic to backends. The value format is namespace/name. See example","title":"proxy-set-headers"},{"location":"user-guide/nginx-configuration/configmap/#server-name-hash-max-size","text":"Sets the maximum size of the server names hash tables used in server names,map directive\u2019s values, MIME types, names of request header strings, etc. References: http://nginx.org/en/docs/hash.html","title":"server-name-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#server-name-hash-bucket-size","text":"Sets the size of the bucket for the server names hash tables. References: http://nginx.org/en/docs/hash.html http://nginx.org/en/docs/http/ngx_http_core_module.html#server_names_hash_bucket_size","title":"server-name-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-headers-hash-max-size","text":"Sets the maximum size of the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_max_size","title":"proxy-headers-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#reuse-port","text":"Instructs NGINX to create an individual listening socket for each worker process (using the SO_REUSEPORT socket option), allowing a kernel to distribute incoming connections between worker processes default: true","title":"reuse-port"},{"location":"user-guide/nginx-configuration/configmap/#proxy-headers-hash-bucket-size","text":"Sets the size of the bucket for the proxy headers hash tables. References: http://nginx.org/en/docs/hash.html https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_bucket_size","title":"proxy-headers-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#plugins","text":"Activates plugins installed in /etc/nginx/lua/plugins . Refer to ingress-nginx plugins README for more information on how to write and install a plugin.","title":"plugins"},{"location":"user-guide/nginx-configuration/configmap/#server-tokens","text":"Send NGINX Server header in responses and display NGINX version in error pages. default: is enabled","title":"server-tokens"},{"location":"user-guide/nginx-configuration/configmap/#ssl-ciphers","text":"Sets the ciphers list to enable. The ciphers are specified in the format understood by the OpenSSL library. The default cipher list is: ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 . The ordering of a ciphersuite is very important because it decides which algorithms are going to be selected in priority. The recommendation above prioritizes algorithms that provide perfect forward secrecy . Please check the Mozilla SSL Configuration Generator . Note: ssl_prefer_server_ciphers directive will be enabled by default for http context.","title":"ssl-ciphers"},{"location":"user-guide/nginx-configuration/configmap/#ssl-ecdh-curve","text":"Specifies a curve for ECDHE ciphers. References: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ecdh_curve","title":"ssl-ecdh-curve"},{"location":"user-guide/nginx-configuration/configmap/#ssl-dh-param","text":"Sets the name of the secret that contains Diffie-Hellman key to help with \"Perfect Forward Secrecy\". References: https://wiki.openssl.org/index.php/Diffie-Hellman_parameters https://wiki.mozilla.org/Security/Server_Side_TLS#DHE_handshake_and_dhparam http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_dhparam","title":"ssl-dh-param"},{"location":"user-guide/nginx-configuration/configmap/#ssl-protocols","text":"Sets the SSL protocols to use. The default is: TLSv1.2 TLSv1.3 . Please check the result of the configuration using https://ssllabs.com/ssltest/analyze.html or https://testssl.sh .","title":"ssl-protocols"},{"location":"user-guide/nginx-configuration/configmap/#ssl-early-data","text":"Enables or disables TLS 1.3 early data , also known as Zero Round Trip Time Resumption (0-RTT). This requires ssl-protocols to have TLSv1.3 enabled. Enable this with caution, because requests sent within early data are subject to replay attacks . ssl_early_data . The default is: false .","title":"ssl-early-data"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-cache","text":"Enables or disables the use of shared SSL cache among worker processes.","title":"ssl-session-cache"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-cache-size","text":"Sets the size of the SSL shared session cache between all worker processes.","title":"ssl-session-cache-size"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-tickets","text":"Enables or disables session resumption through TLS session tickets .","title":"ssl-session-tickets"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-ticket-key","text":"Sets the secret key used to encrypt and decrypt TLS session tickets. The value must be a valid base64 string. To create a ticket: openssl rand 80 | openssl enc -A -base64 TLS session ticket-key , by default, a randomly generated key is used.","title":"ssl-session-ticket-key"},{"location":"user-guide/nginx-configuration/configmap/#ssl-session-timeout","text":"Sets the time during which a client may reuse the session parameters stored in a cache.","title":"ssl-session-timeout"},{"location":"user-guide/nginx-configuration/configmap/#ssl-buffer-size","text":"Sets the size of the SSL buffer used for sending data. The default of 4k helps NGINX to improve TLS Time To First Byte (TTTFB). References: https://www.igvita.com/2013/12/16/optimizing-nginx-tls-time-to-first-byte/","title":"ssl-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#use-proxy-protocol","text":"Enables or disables the PROXY protocol to receive client connection (real IP address) information passed through proxy servers and load balancers such as HAProxy and Amazon Elastic Load Balancer (ELB).","title":"use-proxy-protocol"},{"location":"user-guide/nginx-configuration/configmap/#proxy-protocol-header-timeout","text":"Sets the timeout value for receiving the proxy-protocol headers. The default of 5 seconds prevents the TLS passthrough handler from waiting indefinitely on a dropped connection. default: 5s","title":"proxy-protocol-header-timeout"},{"location":"user-guide/nginx-configuration/configmap/#use-gzip","text":"Enables or disables compression of HTTP responses using the \"gzip\" module . MIME types to compress are controlled by gzip-types . default: true","title":"use-gzip"},{"location":"user-guide/nginx-configuration/configmap/#use-geoip","text":"Enables or disables \"geoip\" module that creates variables with values depending on the client IP address, using the precompiled MaxMind databases. default: true Note: MaxMind legacy databases are discontinued and will not receive updates after 2019-01-02, cf. discontinuation notice . Consider use-geoip2 below.","title":"use-geoip"},{"location":"user-guide/nginx-configuration/configmap/#use-geoip2","text":"Enables the geoip2 module for NGINX. Since 0.27.0 and due to a change in the MaxMind databases a license is required to have access to the databases. For this reason, it is required to define a new flag --maxmind-license-key in the ingress controller deployment to download the databases needed during the initialization of the ingress controller. Alternatively, it is possible to use a volume to mount the files /etc/nginx/geoip/GeoLite2-City.mmdb and /etc/nginx/geoip/GeoLite2-ASN.mmdb , avoiding the overhead of the download. Important If the feature is enabled but the files are missing, GeoIP2 will not be enabled. default: false","title":"use-geoip2"},{"location":"user-guide/nginx-configuration/configmap/#enable-brotli","text":"Enables or disables compression of HTTP responses using the \"brotli\" module . The default mime type list to compress is: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component . default: is disabled Note: Brotli does not works in Safari < 11. For more information see https://caniuse.com/#feat=brotli","title":"enable-brotli"},{"location":"user-guide/nginx-configuration/configmap/#brotli-level","text":"Sets the Brotli Compression Level that will be used. default: 4","title":"brotli-level"},{"location":"user-guide/nginx-configuration/configmap/#brotli-types","text":"Sets the MIME Types that will be compressed on-the-fly by brotli. default: application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component","title":"brotli-types"},{"location":"user-guide/nginx-configuration/configmap/#use-http2","text":"Enables or disables HTTP/2 support in secure connections.","title":"use-http2"},{"location":"user-guide/nginx-configuration/configmap/#gzip-level","text":"Sets the gzip Compression Level that will be used. default: 5","title":"gzip-level"},{"location":"user-guide/nginx-configuration/configmap/#gzip-min-length","text":"Minimum length of responses to be returned to the client before it is eligible for gzip compression, in bytes. default: 256","title":"gzip-min-length"},{"location":"user-guide/nginx-configuration/configmap/#gzip-types","text":"Sets the MIME types in addition to \"text/html\" to compress. The special value \"*\" matches any MIME type. Responses with the \"text/html\" type are always compressed if use-gzip is enabled. default: application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component .","title":"gzip-types"},{"location":"user-guide/nginx-configuration/configmap/#worker-processes","text":"Sets the number of worker processes . The default of \"auto\" means number of available CPU cores.","title":"worker-processes"},{"location":"user-guide/nginx-configuration/configmap/#worker-cpu-affinity","text":"Binds worker processes to the sets of CPUs. worker_cpu_affinity . By default worker processes are not bound to any specific CPUs. The value can be: \"\": empty string indicate no affinity is applied. cpumask: e.g. 0001 0010 0100 1000 to bind processes to specific cpus. auto: binding worker processes automatically to available CPUs.","title":"worker-cpu-affinity"},{"location":"user-guide/nginx-configuration/configmap/#worker-shutdown-timeout","text":"Sets a timeout for Nginx to wait for worker to gracefully shutdown . default: \"240s\"","title":"worker-shutdown-timeout"},{"location":"user-guide/nginx-configuration/configmap/#load-balance","text":"Sets the algorithm to use for load balancing. The value can either be: round_robin: to use the default round robin loadbalancer ewma: to use the Peak EWMA method for routing ( implementation ) The default is round_robin . To load balance using consistent hashing of IP or other variables, consider the nginx.ingress.kubernetes.io/upstream-hash-by annotation. To load balance using session cookies, consider the nginx.ingress.kubernetes.io/affinity annotation. References: http://nginx.org/en/docs/http/load_balancing.html","title":"load-balance"},{"location":"user-guide/nginx-configuration/configmap/#variables-hash-bucket-size","text":"Sets the bucket size for the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_bucket_size","title":"variables-hash-bucket-size"},{"location":"user-guide/nginx-configuration/configmap/#variables-hash-max-size","text":"Sets the maximum size of the variables hash table. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#variables_hash_max_size","title":"variables-hash-max-size"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-connections","text":"Activates the cache for connections to upstream servers. The connections parameter sets the maximum number of idle keepalive connections to upstream servers that are preserved in the cache of each worker process. When this number is exceeded, the least recently used connections are closed. default: 32 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive","title":"upstream-keepalive-connections"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-timeout","text":"Sets a timeout during which an idle keepalive connection to an upstream server will stay open. default: 60 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_timeout","title":"upstream-keepalive-timeout"},{"location":"user-guide/nginx-configuration/configmap/#upstream-keepalive-requests","text":"Sets the maximum number of requests that can be served through one keepalive connection. After the maximum number of requests is made, the connection is closed. default: 100 References: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive_requests","title":"upstream-keepalive-requests"},{"location":"user-guide/nginx-configuration/configmap/#limit-conn-zone-variable","text":"Sets parameters for a shared memory zone that will keep states for various keys of limit_conn_zone . The default of \"$binary_remote_addr\" variable\u2019s size is always 4 bytes for IPv4 addresses or 16 bytes for IPv6 addresses.","title":"limit-conn-zone-variable"},{"location":"user-guide/nginx-configuration/configmap/#proxy-stream-timeout","text":"Sets the timeout between two successive read or write operations on client or proxied server connections. If no data is transmitted within this time, the connection is closed. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_timeout","title":"proxy-stream-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-stream-responses","text":"Sets the number of datagrams expected from the proxied server in response to the client request if the UDP protocol is used. References: http://nginx.org/en/docs/stream/ngx_stream_proxy_module.html#proxy_responses","title":"proxy-stream-responses"},{"location":"user-guide/nginx-configuration/configmap/#bind-address","text":"Sets the addresses on which the server will accept requests instead of *. It should be noted that these addresses must exist in the runtime environment or the controller will crash loop.","title":"bind-address"},{"location":"user-guide/nginx-configuration/configmap/#use-forwarded-headers","text":"If true, NGINX passes the incoming X-Forwarded-* headers to upstreams. Use this option when NGINX is behind another L7 proxy / load balancer that is setting these headers. If false, NGINX ignores incoming X-Forwarded-* headers, filling them with the request information it sees. Use this option if NGINX is exposed directly to the internet, or it's behind a L3/packet-based load balancer that doesn't alter the source IP in the packets.","title":"use-forwarded-headers"},{"location":"user-guide/nginx-configuration/configmap/#enable-real-ip","text":"enable-real-ip enables the configuration of http://nginx.org/en/docs/http/ngx_http_realip_module.html . Specific attributes of the module can be configured further by using forwarded-for-header and proxy-real-ip-cidr settings.","title":"enable-real-ip"},{"location":"user-guide/nginx-configuration/configmap/#forwarded-for-header","text":"Sets the header field for identifying the originating IP address of a client. default: X-Forwarded-For","title":"forwarded-for-header"},{"location":"user-guide/nginx-configuration/configmap/#compute-full-forwarded-for","text":"Append the remote address to the X-Forwarded-For header instead of replacing it. When this option is enabled, the upstream application is responsible for extracting the client IP based on its own list of trusted proxies.","title":"compute-full-forwarded-for"},{"location":"user-guide/nginx-configuration/configmap/#proxy-add-original-uri-header","text":"Adds an X-Original-Uri header with the original request URI to the backend request","title":"proxy-add-original-uri-header"},{"location":"user-guide/nginx-configuration/configmap/#generate-request-id","text":"Ensures that X-Request-ID is defaulted to a random value, if no X-Request-ID is present in the request","title":"generate-request-id"},{"location":"user-guide/nginx-configuration/configmap/#enable-opentracing","text":"Enables the nginx Opentracing extension. default: is disabled References: https://github.com/opentracing-contrib/nginx-opentracing","title":"enable-opentracing"},{"location":"user-guide/nginx-configuration/configmap/#opentracing-operation-name","text":"Specifies a custom name for the server span. default: is empty For example, set to \"HTTP $request_method $uri\".","title":"opentracing-operation-name"},{"location":"user-guide/nginx-configuration/configmap/#opentracing-location-operation-name","text":"Specifies a custom name for the location span. default: is empty For example, set to \"HTTP $request_method $uri\".","title":"opentracing-location-operation-name"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-collector-host","text":"Specifies the host to use when uploading traces. It must be a valid URL.","title":"zipkin-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-collector-port","text":"Specifies the port to use when uploading traces. default: 9411","title":"zipkin-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"zipkin-service-name"},{"location":"user-guide/nginx-configuration/configmap/#zipkin-sample-rate","text":"Specifies sample rate for any traces created. default: 1.0","title":"zipkin-sample-rate"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-collector-host","text":"Specifies the host to use when uploading traces. It must be a valid URL.","title":"jaeger-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-collector-port","text":"Specifies the port to use when uploading traces. default: 6831","title":"jaeger-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"jaeger-service-name"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-type","text":"Specifies the sampler to be used when sampling traces. The available samplers are: const, probabilistic, ratelimiting, remote. default: const","title":"jaeger-sampler-type"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-param","text":"Specifies the argument to be passed to the sampler constructor. Must be a number. For const this should be 0 to never sample and 1 to always sample. default: 1","title":"jaeger-sampler-param"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-host","text":"Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. Leave blank to use default value (localhost). default: http://127.0.0.1","title":"jaeger-sampler-host"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-sampler-port","text":"Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. default: 5778","title":"jaeger-sampler-port"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-trace-context-header-name","text":"Specifies the header name used for passing trace context. default: uber-trace-id","title":"jaeger-trace-context-header-name"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-debug-header","text":"Specifies the header name used for force sampling. default: jaeger-debug-id","title":"jaeger-debug-header"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-baggage-header","text":"Specifies the header name used to submit baggage if there is no root span. default: jaeger-baggage","title":"jaeger-baggage-header"},{"location":"user-guide/nginx-configuration/configmap/#jaeger-tracer-baggage-header-prefix","text":"Specifies the header prefix used to propagate baggage. default: uberctx-","title":"jaeger-tracer-baggage-header-prefix"},{"location":"user-guide/nginx-configuration/configmap/#datadog-collector-host","text":"Specifies the datadog agent host to use when uploading traces. It must be a valid URL.","title":"datadog-collector-host"},{"location":"user-guide/nginx-configuration/configmap/#datadog-collector-port","text":"Specifies the port to use when uploading traces. default: 8126","title":"datadog-collector-port"},{"location":"user-guide/nginx-configuration/configmap/#datadog-service-name","text":"Specifies the service name to use for any traces created. default: nginx","title":"datadog-service-name"},{"location":"user-guide/nginx-configuration/configmap/#datadog-operation-name-override","text":"Overrides the operation naem to use for any traces crated. default: nginx.handle","title":"datadog-operation-name-override"},{"location":"user-guide/nginx-configuration/configmap/#datadog-priority-sampling","text":"Specifies to use client-side sampling. If true disables client-side sampling (thus ignoring sample_rate ) and enables distributed priority sampling, where traces are sampled based on a combination of user-assigned priorities and configuration from the agent. default: true","title":"datadog-priority-sampling"},{"location":"user-guide/nginx-configuration/configmap/#datadog-sample-rate","text":"Specifies sample rate for any traces created. This is effective only when datadog-priority-sampling is false default: 1.0","title":"datadog-sample-rate"},{"location":"user-guide/nginx-configuration/configmap/#main-snippet","text":"Adds custom configuration to the main section of the nginx configuration.","title":"main-snippet"},{"location":"user-guide/nginx-configuration/configmap/#http-snippet","text":"Adds custom configuration to the http section of the nginx configuration.","title":"http-snippet"},{"location":"user-guide/nginx-configuration/configmap/#server-snippet","text":"Adds custom configuration to all the servers in the nginx configuration.","title":"server-snippet"},{"location":"user-guide/nginx-configuration/configmap/#location-snippet","text":"Adds custom configuration to all the locations in the nginx configuration. You can not use this to add new locations that proxy to the Kubernetes pods, as the snippet does not have access to the Go template functions. If you want to add custom locations you will have to provide your own nginx.tmpl .","title":"location-snippet"},{"location":"user-guide/nginx-configuration/configmap/#custom-http-errors","text":"Enables which HTTP codes should be passed for processing with the error_page directive Setting at least one code also enables proxy_intercept_errors which are required to process error_page. Example usage: custom-http-errors: 404,415","title":"custom-http-errors"},{"location":"user-guide/nginx-configuration/configmap/#proxy-body-size","text":"Sets the maximum allowed size of the client request body. See NGINX client_max_body_size .","title":"proxy-body-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-connect-timeout","text":"Sets the timeout for establishing a connection with a proxied server . It should be noted that this timeout cannot usually exceed 75 seconds.","title":"proxy-connect-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-read-timeout","text":"Sets the timeout in seconds for reading a response from the proxied server . The timeout is set only between two successive read operations, not for the transmission of the whole response.","title":"proxy-read-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-send-timeout","text":"Sets the timeout in seconds for transmitting a request to the proxied server . The timeout is set only between two successive write operations, not for the transmission of the whole request.","title":"proxy-send-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffers-number","text":"Sets the number of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header.","title":"proxy-buffers-number"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffer-size","text":"Sets the size of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header.","title":"proxy-buffer-size"},{"location":"user-guide/nginx-configuration/configmap/#proxy-cookie-path","text":"Sets a text that should be changed in the path attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response.","title":"proxy-cookie-path"},{"location":"user-guide/nginx-configuration/configmap/#proxy-cookie-domain","text":"Sets a text that should be changed in the domain attribute of the \u201cSet-Cookie\u201d header fields of a proxied server response.","title":"proxy-cookie-domain"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream","text":"Specifies in which cases a request should be passed to the next server.","title":"proxy-next-upstream"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream-timeout","text":"Limits the time in seconds during which a request can be passed to the next server.","title":"proxy-next-upstream-timeout"},{"location":"user-guide/nginx-configuration/configmap/#proxy-next-upstream-tries","text":"Limit the number of possible tries a request should be passed to the next server.","title":"proxy-next-upstream-tries"},{"location":"user-guide/nginx-configuration/configmap/#proxy-redirect-from","text":"Sets the original text that should be changed in the \"Location\" and \"Refresh\" header fields of a proxied server response. default: off References: http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_redirect","title":"proxy-redirect-from"},{"location":"user-guide/nginx-configuration/configmap/#proxy-request-buffering","text":"Enables or disables buffering of a client request body .","title":"proxy-request-buffering"},{"location":"user-guide/nginx-configuration/configmap/#ssl-redirect","text":"Sets the global value of redirects (301) to HTTPS if the server has a TLS certificate (defined in an Ingress rule). default: \"true\"","title":"ssl-redirect"},{"location":"user-guide/nginx-configuration/configmap/#whitelist-source-range","text":"Sets the default whitelisted IPs for each server block. This can be overwritten by an annotation on an Ingress rule. See ngx_http_access_module .","title":"whitelist-source-range"},{"location":"user-guide/nginx-configuration/configmap/#skip-access-log-urls","text":"Sets a list of URLs that should not appear in the NGINX access log. This is useful with urls like /health or health-check that make \"complex\" reading the logs. default: is empty","title":"skip-access-log-urls"},{"location":"user-guide/nginx-configuration/configmap/#limit-rate","text":"Limits the rate of response transmission to a client. The rate is specified in bytes per second. The zero value disables rate limiting. The limit is set per a request, and so if a client simultaneously opens two connections, the overall rate will be twice as much as the specified limit. References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate","title":"limit-rate"},{"location":"user-guide/nginx-configuration/configmap/#limit-rate-after","text":"Sets the initial amount after which the further transmission of a response to a client will be rate limited.","title":"limit-rate-after"},{"location":"user-guide/nginx-configuration/configmap/#lua-shared-dicts","text":"Customize default Lua shared dictionaries or define more. You can use the following syntax to do so: lua-shared-dicts: \"<my dict name>: <my dict size>, [<my dict name>: <my dict size>], ...\" For example following will set default certificate_data dictionary to 100M and will introduce a new dictionary called my_custom_plugin : lua-shared-dicts: \"certificate_data: 100, my_custom_plugin: 5\" References: http://nginx.org/en/docs/http/ngx_http_core_module.html#limit_rate_after","title":"lua-shared-dicts"},{"location":"user-guide/nginx-configuration/configmap/#http-redirect-code","text":"Sets the HTTP status code to be used in redirects. Supported codes are 301 , 302 , 307 and 308 default: 308 Why the default code is 308? RFC 7238 was created to define the 308 (Permanent Redirect) status code that is similar to 301 (Moved Permanently) but it keeps the payload in the redirect. This is important if we send a redirect in methods like POST.","title":"http-redirect-code"},{"location":"user-guide/nginx-configuration/configmap/#proxy-buffering","text":"Enables or disables buffering of responses from the proxied server .","title":"proxy-buffering"},{"location":"user-guide/nginx-configuration/configmap/#limit-req-status-code","text":"Sets the status code to return in response to rejected requests . default: 503","title":"limit-req-status-code"},{"location":"user-guide/nginx-configuration/configmap/#limit-conn-status-code","text":"Sets the status code to return in response to rejected connections . default: 503","title":"limit-conn-status-code"},{"location":"user-guide/nginx-configuration/configmap/#no-tls-redirect-locations","text":"A comma-separated list of locations on which http requests will never get redirected to their https counterpart. default: \"/.well-known/acme-challenge\"","title":"no-tls-redirect-locations"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-url","text":"A url to an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-url . Locations that should not get authenticated can be listed using no-auth-locations See no-auth-locations . In addition, each service can be excluded from authentication via annotation enable-global-auth set to \"false\". default: \"\" References: https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md#external-authentication","title":"global-auth-url"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-method","text":"A HTTP method to use for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-method . default: \"\"","title":"global-auth-method"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-signin","text":"Sets the location of the error page for an existing service that provides authentication for all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-signin . default: \"\"","title":"global-auth-signin"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-response-headers","text":"Sets the headers to pass to backend once authentication request completes. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-response-headers . default: \"\"","title":"global-auth-response-headers"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-request-redirect","text":"Sets the X-Auth-Request-Redirect header value. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\"","title":"global-auth-request-redirect"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-snippet","text":"Sets a custom snippet to use with external authentication. Applied to all the locations. Similar to the Ingress rule annotation nginx.ingress.kubernetes.io/auth-request-redirect . default: \"\"","title":"global-auth-snippet"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-cache-key","text":"Enables caching for global auth requests. Specify a lookup key for auth responses, e.g. $remote_user$http_authorization .","title":"global-auth-cache-key"},{"location":"user-guide/nginx-configuration/configmap/#global-auth-cache-duration","text":"Set a caching time for auth responses based on their response codes, e.g. 200 202 30m . See proxy_cache_valid for details. You may specify multiple, comma-separated values: 200 202 10m, 401 5m . defaults to 200 202 401 5m .","title":"global-auth-cache-duration"},{"location":"user-guide/nginx-configuration/configmap/#no-auth-locations","text":"A comma-separated list of locations that should not get authenticated. default: \"/.well-known/acme-challenge\"","title":"no-auth-locations"},{"location":"user-guide/nginx-configuration/configmap/#block-cidrs","text":"A comma-separated list of IP addresses (or subnets), request from which have to be blocked globally. References: http://nginx.org/en/docs/http/ngx_http_access_module.html#deny","title":"block-cidrs"},{"location":"user-guide/nginx-configuration/configmap/#block-user-agents","text":"A comma-separated list of User-Agent, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map","title":"block-user-agents"},{"location":"user-guide/nginx-configuration/configmap/#block-referers","text":"A comma-separated list of Referers, request from which have to be blocked globally. It's possible to use here full strings and regular expressions. More details about valid patterns can be found at map Nginx directive documentation. References: http://nginx.org/en/docs/http/ngx_http_map_module.html#map","title":"block-referers"},{"location":"user-guide/nginx-configuration/configmap/#proxy-ssl-location-only","text":"Set if proxy-ssl parameters should be applied only on locations and not on servers. default: is disabled","title":"proxy-ssl-location-only"},{"location":"user-guide/nginx-configuration/configmap/#default-type","text":"Sets the default MIME type of a response. default: text/html References: http://nginx.org/en/docs/http/ngx_http_core_module.html#default_type","title":"default-type"},{"location":"user-guide/nginx-configuration/custom-template/","text":"Custom NGINX template \u00b6 The NGINX template is located in the file /etc/nginx/template/nginx.tmpl . Using a Volume it is possible to use a custom template. This includes using a Configmap as source of the template volumeMounts : - mountPath : /etc/nginx/template name : nginx-template-volume readOnly : true volumes : - name : nginx-template-volume configMap : name : nginx-template items : - key : nginx.tmpl path : nginx.tmpl Please note the template is tied to the Go code. Do not change names in the variable $cfg . For more information about the template syntax please check the Go template package . In addition to the built-in functions provided by the Go package the following functions are also available: empty: returns true if the specified parameter (string) is empty contains: strings.Contains hasPrefix: strings.HasPrefix hasSuffix: strings.HasSuffix toUpper: strings.ToUpper toLower: strings.ToLower quote: wraps a string in double quotes buildLocation: helps to build the NGINX Location section in each server buildProxyPass: builds the reverse proxy configuration buildRateLimit: helps to build a limit zone inside a location if contains a rate limit annotation TODO: buildAuthLocation: buildAuthResponseHeaders: buildResolvers: buildDenyVariable: buildUpstreamName: buildForwardedFor: buildAuthSignURL: buildNextUpstream: filterRateLimits: formatIP: getenv: getIngressInformation: serverConfig: isLocationAllowed: isValidClientBodyBufferSize:","title":"Custom NGINX template"},{"location":"user-guide/nginx-configuration/custom-template/#custom-nginx-template","text":"The NGINX template is located in the file /etc/nginx/template/nginx.tmpl . Using a Volume it is possible to use a custom template. This includes using a Configmap as source of the template volumeMounts : - mountPath : /etc/nginx/template name : nginx-template-volume readOnly : true volumes : - name : nginx-template-volume configMap : name : nginx-template items : - key : nginx.tmpl path : nginx.tmpl Please note the template is tied to the Go code. Do not change names in the variable $cfg . For more information about the template syntax please check the Go template package . In addition to the built-in functions provided by the Go package the following functions are also available: empty: returns true if the specified parameter (string) is empty contains: strings.Contains hasPrefix: strings.HasPrefix hasSuffix: strings.HasSuffix toUpper: strings.ToUpper toLower: strings.ToLower quote: wraps a string in double quotes buildLocation: helps to build the NGINX Location section in each server buildProxyPass: builds the reverse proxy configuration buildRateLimit: helps to build a limit zone inside a location if contains a rate limit annotation TODO: buildAuthLocation: buildAuthResponseHeaders: buildResolvers: buildDenyVariable: buildUpstreamName: buildForwardedFor: buildAuthSignURL: buildNextUpstream: filterRateLimits: formatIP: getenv: getIngressInformation: serverConfig: isLocationAllowed: isValidClientBodyBufferSize:","title":"Custom NGINX template"},{"location":"user-guide/nginx-configuration/log-format/","text":"Log format \u00b6 The default configuration uses a custom logging format to add additional information about upstreams, response time and status. log_format upstreaminfo '$remote_addr - $remote_user [$time_local] \"$request\" ' '$status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" ' '$request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr ' '$upstream_response_length $upstream_response_time $upstream_status $req_id'; Placeholder Description $proxy_protocol_addr remote address if proxy protocol is enabled $remote_addr the source IP address of the client $remote_user user name supplied with the Basic authentication $time_local local time in the Common Log Format $request full original request line $status response status $body_bytes_sent number of bytes sent to a client, not counting the response header $http_referer value of the Referer header $http_user_agent value of User-Agent header $request_length request length (including request line, header, and request body) $request_time time elapsed since the first bytes were read from the client $proxy_upstream_name name of the upstream. The format is upstream-<namespace>-<service name>-<service port> $proxy_alternative_upstream_name name of the alternative upstream. The format is upstream-<namespace>-<service name>-<service port> $upstream_addr the IP address and port (or the path to the domain socket) of the upstream server. If several servers were contacted during request processing, their addresses are separated by commas. $upstream_response_length the length of the response obtained from the upstream server $upstream_response_time time spent on receiving the response from the upstream server as seconds with millisecond resolution $upstream_status status code of the response obtained from the upstream server $req_id the randomly generated ID of the request Additional available variables: Placeholder Description $namespace namespace of the ingress $ingress_name name of the ingress $service_name name of the service $service_port port of the service Sources: Upstream variables Embedded variables","title":"Log format"},{"location":"user-guide/nginx-configuration/log-format/#log-format","text":"The default configuration uses a custom logging format to add additional information about upstreams, response time and status. log_format upstreaminfo '$remote_addr - $remote_user [$time_local] \"$request\" ' '$status $body_bytes_sent \"$http_referer\" \"$http_user_agent\" ' '$request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr ' '$upstream_response_length $upstream_response_time $upstream_status $req_id'; Placeholder Description $proxy_protocol_addr remote address if proxy protocol is enabled $remote_addr the source IP address of the client $remote_user user name supplied with the Basic authentication $time_local local time in the Common Log Format $request full original request line $status response status $body_bytes_sent number of bytes sent to a client, not counting the response header $http_referer value of the Referer header $http_user_agent value of User-Agent header $request_length request length (including request line, header, and request body) $request_time time elapsed since the first bytes were read from the client $proxy_upstream_name name of the upstream. The format is upstream-<namespace>-<service name>-<service port> $proxy_alternative_upstream_name name of the alternative upstream. The format is upstream-<namespace>-<service name>-<service port> $upstream_addr the IP address and port (or the path to the domain socket) of the upstream server. If several servers were contacted during request processing, their addresses are separated by commas. $upstream_response_length the length of the response obtained from the upstream server $upstream_response_time time spent on receiving the response from the upstream server as seconds with millisecond resolution $upstream_status status code of the response obtained from the upstream server $req_id the randomly generated ID of the request Additional available variables: Placeholder Description $namespace namespace of the ingress $ingress_name name of the ingress $service_name name of the service $service_port port of the service Sources: Upstream variables Embedded variables","title":"Log format"},{"location":"user-guide/third-party-addons/modsecurity/","text":"ModSecurity Web Application Firewall \u00b6 ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis - https://www.modsecurity.org The ModSecurity-nginx connector is the connection point between NGINX and libmodsecurity (ModSecurity v3). The default ModSecurity configuration file is located in /etc/nginx/modsecurity/modsecurity.conf . This is the only file located in this directory and contains the default recommended configuration. Using a volume we can replace this file with the desired configuration. To enable the ModSecurity feature we need to specify enable-modsecurity: \"true\" in the configuration configmap. Note: the default configuration use detection only, because that minimizes the chances of post-installation disruption. Due to the value of the setting SecAuditLogType=Concurrent the ModSecurity log is stored in multiple files inside the directory /var/log/audit . The default Serial value in SecAuditLogType can impact performance. The OWASP ModSecurity Core Rule Set (CRS) is a set of generic attack detection rules for use with ModSecurity or compatible web application firewalls. The CRS aims to protect web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts. The directory /etc/nginx/owasp-modsecurity-crs contains the owasp-modsecurity-crs repository . Using enable-owasp-modsecurity-crs: \"true\" we enable the use of the rules.","title":"ModSecurity Web Application Firewall"},{"location":"user-guide/third-party-addons/modsecurity/#modsecurity-web-application-firewall","text":"ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis - https://www.modsecurity.org The ModSecurity-nginx connector is the connection point between NGINX and libmodsecurity (ModSecurity v3). The default ModSecurity configuration file is located in /etc/nginx/modsecurity/modsecurity.conf . This is the only file located in this directory and contains the default recommended configuration. Using a volume we can replace this file with the desired configuration. To enable the ModSecurity feature we need to specify enable-modsecurity: \"true\" in the configuration configmap. Note: the default configuration use detection only, because that minimizes the chances of post-installation disruption. Due to the value of the setting SecAuditLogType=Concurrent the ModSecurity log is stored in multiple files inside the directory /var/log/audit . The default Serial value in SecAuditLogType can impact performance. The OWASP ModSecurity Core Rule Set (CRS) is a set of generic attack detection rules for use with ModSecurity or compatible web application firewalls. The CRS aims to protect web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts. The directory /etc/nginx/owasp-modsecurity-crs contains the owasp-modsecurity-crs repository . Using enable-owasp-modsecurity-crs: \"true\" we enable the use of the rules.","title":"ModSecurity Web Application Firewall"},{"location":"user-guide/third-party-addons/opentracing/","text":"OpenTracing \u00b6 Enables requests served by NGINX for distributed tracing via The OpenTracing Project. Using the third party module opentracing-contrib/nginx-opentracing the NGINX ingress controller can configure NGINX to enable OpenTracing instrumentation. By default this feature is disabled. Usage \u00b6 To enable the instrumentation we must enable OpenTracing in the configuration ConfigMap: data: enable-opentracing: \"true\" To enable or disable instrumentation for a single Ingress, use the enable-opentracing annotation: kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/enable-opentracing: \"true\" We must also set the host to use when uploading traces: zipkin-collector-host: zipkin.default.svc.cluster.local jaeger-collector-host: jaeger-agent.default.svc.cluster.local datadog-collector-host: datadog-agent.default.svc.cluster.local NOTE: While the option is called jaeger-collector-host , you will need to point this to a jaeger-agent , and not the jaeger-collector component. Next you will need to deploy a distributed tracing system which uses OpenTracing. Zipkin and Jaeger and Datadog have been tested. Other optional configuration options: # specifies the name to use for the server span opentracing-operation-name # specifies specifies the name to use for the location span opentracing-location-operation-name # specifies the port to use when uploading traces, Default: 9411 zipkin-collector-port # specifies the service name to use for any traces created, Default: nginx zipkin-service-name # specifies sample rate for any traces created, Default: 1.0 zipkin-sample-rate # specifies the port to use when uploading traces, Default: 6831 jaeger-collector-port # specifies the service name to use for any traces created, Default: nginx jaeger-service-name # specifies the sampler to be used when sampling traces. # The available samplers are: const, probabilistic, ratelimiting, remote, Default: const jaeger-sampler-type # specifies the argument to be passed to the sampler constructor, Default: 1 jaeger-sampler-param # Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. # Default: http://127.0.0.1 jaeger-sampler-host # Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. Default: 5778 jaeger-sampler-port # Specifies the header name used for passing trace context. Must be a string. Default: uber-trace-id jaeger-trace-context-header-name # Specifies the header name used for force sampling. Must be a string. Default: jaeger-debug-id jaeger-debug-header # Specifies the header name used to submit baggage if there is no root span. Must be a string. Default: jaeger-baggage jaeger-baggage-header # Specifies the header prefix used to propagate baggage. Must be a string. Default: uberctx- jaeger-tracer-baggage-header-prefix # specifies the port to use when uploading traces, Default 8126 datadog-collector-port # specifies the service name to use for any traces created, Default: nginx datadog-service-name # specifies the operation name to use for any traces collected, Default: nginx.handle datadog-operation-name-override # Specifies to use client-side sampling for distributed priority sampling and ignore sample rate, Default: true datadog-priority-sampling # specifies sample rate for any traces created, Default: 1.0 datadog-sample-rate All these options (including host) allow environment variables, such as $HOSTNAME or $HOST_IP . In the case of Jaeger, if you have a Jaeger agent running on each machine in your cluster, you can use something like $HOST_IP (which can be 'mounted' with the status.hostIP fieldpath, as described here ) to make sure traces will be sent to the local agent. Examples \u00b6 The following examples show how to deploy and test different distributed tracing systems. These example can be performed using Minikube. Zipkin \u00b6 In the rnburn/zipkin-date-server GitHub repository is an example of a dockerized date service. To install the example and Zipkin collector run: kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/zipkin.yaml kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/deployment.yaml Also we need to configure the NGINX controller ConfigMap with the required values: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" zipkin-collector-host: zipkin.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - In the Zipkin interface we can see the details: Jaeger \u00b6 Enable Ingress addon in Minikube: $ minikube addons enable ingress Add Minikube IP to /etc/hosts: $ echo \"$(minikube ip) example.com\" | sudo tee -a /etc/hosts Apply a basic Service and Ingress Resource: # Create Echoheaders Deployment $ kubectl run echoheaders --image=k8s.gcr.io/echoserver:1.4 --replicas=1 --port=8080 # Expose as a Cluster-IP $ kubectl expose deployment echoheaders --port=80 --target-port=8080 --name=echoheaders-x # Apply the Ingress Resource $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: echo-ingress spec: rules: - host: example.com http: paths: - backend: serviceName: echoheaders-x servicePort: 80 path: /echo ' | kubectl apply -f - Enable OpenTracing and set the jaeger-collector-host: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" jaeger-collector-host: jaeger-agent.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - Apply the Jaeger All-In-One Template: $ kubectl apply -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml Make a few requests to the Service: $ curl example.com/echo -d \"meow\" CLIENT VALUES: client_address=172.17.0.5 command=POST real path=/echo query=nil request_version=1.1 request_uri=http://example.com:8080/echo SERVER VALUES: server_version=nginx: 1.10.0 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close content-length=4 content-type=application/x-www-form-urlencoded host=example.com user-agent=curl/7.54.0 x-forwarded-for=192.168.99.1 x-forwarded-host=example.com x-forwarded-port=80 x-forwarded-proto=http x-original-uri=/echo x-real-ip=192.168.99.1 x-scheme=http BODY: meow View the Jaeger UI: $ minikube service jaeger-query --url http://192.168.99.100:30183 In the Jaeger interface we can see the details:","title":"OpenTracing"},{"location":"user-guide/third-party-addons/opentracing/#opentracing","text":"Enables requests served by NGINX for distributed tracing via The OpenTracing Project. Using the third party module opentracing-contrib/nginx-opentracing the NGINX ingress controller can configure NGINX to enable OpenTracing instrumentation. By default this feature is disabled.","title":"OpenTracing"},{"location":"user-guide/third-party-addons/opentracing/#usage","text":"To enable the instrumentation we must enable OpenTracing in the configuration ConfigMap: data: enable-opentracing: \"true\" To enable or disable instrumentation for a single Ingress, use the enable-opentracing annotation: kind: Ingress metadata: annotations: nginx.ingress.kubernetes.io/enable-opentracing: \"true\" We must also set the host to use when uploading traces: zipkin-collector-host: zipkin.default.svc.cluster.local jaeger-collector-host: jaeger-agent.default.svc.cluster.local datadog-collector-host: datadog-agent.default.svc.cluster.local NOTE: While the option is called jaeger-collector-host , you will need to point this to a jaeger-agent , and not the jaeger-collector component. Next you will need to deploy a distributed tracing system which uses OpenTracing. Zipkin and Jaeger and Datadog have been tested. Other optional configuration options: # specifies the name to use for the server span opentracing-operation-name # specifies specifies the name to use for the location span opentracing-location-operation-name # specifies the port to use when uploading traces, Default: 9411 zipkin-collector-port # specifies the service name to use for any traces created, Default: nginx zipkin-service-name # specifies sample rate for any traces created, Default: 1.0 zipkin-sample-rate # specifies the port to use when uploading traces, Default: 6831 jaeger-collector-port # specifies the service name to use for any traces created, Default: nginx jaeger-service-name # specifies the sampler to be used when sampling traces. # The available samplers are: const, probabilistic, ratelimiting, remote, Default: const jaeger-sampler-type # specifies the argument to be passed to the sampler constructor, Default: 1 jaeger-sampler-param # Specifies the custom remote sampler host to be passed to the sampler constructor. Must be a valid URL. # Default: http://127.0.0.1 jaeger-sampler-host # Specifies the custom remote sampler port to be passed to the sampler constructor. Must be a number. Default: 5778 jaeger-sampler-port # Specifies the header name used for passing trace context. Must be a string. Default: uber-trace-id jaeger-trace-context-header-name # Specifies the header name used for force sampling. Must be a string. Default: jaeger-debug-id jaeger-debug-header # Specifies the header name used to submit baggage if there is no root span. Must be a string. Default: jaeger-baggage jaeger-baggage-header # Specifies the header prefix used to propagate baggage. Must be a string. Default: uberctx- jaeger-tracer-baggage-header-prefix # specifies the port to use when uploading traces, Default 8126 datadog-collector-port # specifies the service name to use for any traces created, Default: nginx datadog-service-name # specifies the operation name to use for any traces collected, Default: nginx.handle datadog-operation-name-override # Specifies to use client-side sampling for distributed priority sampling and ignore sample rate, Default: true datadog-priority-sampling # specifies sample rate for any traces created, Default: 1.0 datadog-sample-rate All these options (including host) allow environment variables, such as $HOSTNAME or $HOST_IP . In the case of Jaeger, if you have a Jaeger agent running on each machine in your cluster, you can use something like $HOST_IP (which can be 'mounted' with the status.hostIP fieldpath, as described here ) to make sure traces will be sent to the local agent.","title":"Usage"},{"location":"user-guide/third-party-addons/opentracing/#examples","text":"The following examples show how to deploy and test different distributed tracing systems. These example can be performed using Minikube.","title":"Examples"},{"location":"user-guide/third-party-addons/opentracing/#zipkin","text":"In the rnburn/zipkin-date-server GitHub repository is an example of a dockerized date service. To install the example and Zipkin collector run: kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/zipkin.yaml kubectl create -f https://raw.githubusercontent.com/rnburn/zipkin-date-server/master/kubernetes/deployment.yaml Also we need to configure the NGINX controller ConfigMap with the required values: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" zipkin-collector-host: zipkin.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - In the Zipkin interface we can see the details:","title":"Zipkin"},{"location":"user-guide/third-party-addons/opentracing/#jaeger","text":"Enable Ingress addon in Minikube: $ minikube addons enable ingress Add Minikube IP to /etc/hosts: $ echo \"$(minikube ip) example.com\" | sudo tee -a /etc/hosts Apply a basic Service and Ingress Resource: # Create Echoheaders Deployment $ kubectl run echoheaders --image=k8s.gcr.io/echoserver:1.4 --replicas=1 --port=8080 # Expose as a Cluster-IP $ kubectl expose deployment echoheaders --port=80 --target-port=8080 --name=echoheaders-x # Apply the Ingress Resource $ echo ' apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: echo-ingress spec: rules: - host: example.com http: paths: - backend: serviceName: echoheaders-x servicePort: 80 path: /echo ' | kubectl apply -f - Enable OpenTracing and set the jaeger-collector-host: $ echo ' apiVersion: v1 kind: ConfigMap data: enable-opentracing: \"true\" jaeger-collector-host: jaeger-agent.default.svc.cluster.local metadata: name: ingress-nginx-controller namespace: kube-system ' | kubectl replace -f - Apply the Jaeger All-In-One Template: $ kubectl apply -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml Make a few requests to the Service: $ curl example.com/echo -d \"meow\" CLIENT VALUES: client_address=172.17.0.5 command=POST real path=/echo query=nil request_version=1.1 request_uri=http://example.com:8080/echo SERVER VALUES: server_version=nginx: 1.10.0 - lua: 10001 HEADERS RECEIVED: accept=*/* connection=close content-length=4 content-type=application/x-www-form-urlencoded host=example.com user-agent=curl/7.54.0 x-forwarded-for=192.168.99.1 x-forwarded-host=example.com x-forwarded-port=80 x-forwarded-proto=http x-original-uri=/echo x-real-ip=192.168.99.1 x-scheme=http BODY: meow View the Jaeger UI: $ minikube service jaeger-query --url http://192.168.99.100:30183 In the Jaeger interface we can see the details:","title":"Jaeger"}]}
\ No newline at end of file
diff --git a/sitemap.xml b/sitemap.xml
index df799cd72..1f7673c7e 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -1,203 +1,203 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><url>
      <loc>https://kubernetes.github.io/ingress-nginx/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/how-it-works/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/troubleshooting/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/kubectl-plugin/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/development/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/baremetal/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/rbac/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/upgrade/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/hardening-guide/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/basic-usage/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/custom-template/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/log-format/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/cli-arguments/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/custom-errors/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/default-backend/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/exposing-tcp-udp-services/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/fcgi-services/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/ingress-path-matching/</loc>
-     <lastmod>2020-09-01</lastmod>
+     <lastmod>2020-09-02</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/external-articles/</loc>
-     <lastmod>2020-09-01</lastmod>
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 </urlset>
\ No newline at end of file
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@@ -59,6 +59,7 @@
     
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@@ -443,15 +436,11 @@
     
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@@ -533,15 +522,11 @@
     
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@@ -558,15 +543,11 @@
     
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+        <span class="md-nav__icon md-icon"></span>
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@@ -851,15 +828,11 @@
     
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+        <span class="md-nav__icon md-icon"></span>
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@@ -912,15 +885,11 @@
     
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+      <span class="md-nav__icon md-icon"></span>
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     <nav class="md-nav" aria-label="Auth" data-md-level="2">
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+        <span class="md-nav__icon md-icon"></span>
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@@ -990,15 +959,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
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+      <span class="md-nav__icon md-icon"></span>
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+        <span class="md-nav__icon md-icon"></span>
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@@ -1200,9 +1165,7 @@
   
   
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-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1663,15 +1626,15 @@ dump. This allows us to see which configuration is being used, as well as older
       
     </div>
     
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+      <script src="../assets/javascripts/vendor.3636a4ec.min.js"></script>
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       </script>
diff --git a/user-guide/basic-usage/index.html b/user-guide/basic-usage/index.html
index 845c36618..a658c4c0e 100644
--- a/user-guide/basic-usage/index.html
+++ b/user-guide/basic-usage/index.html
@@ -13,7 +13,7 @@
       
       
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@@ -46,7 +46,7 @@
     
       
         
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 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -477,15 +466,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -720,15 +705,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -779,15 +760,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -840,15 +817,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -918,15 +891,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1254,15 +1223,15 @@ Please note that the ingress resource should be placed inside the same namespace
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/cli-arguments/index.html b/user-guide/cli-arguments/index.html
index 579099f44..1d728021a 100644
--- a/user-guide/cli-arguments/index.html
+++ b/user-guide/cli-arguments/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -718,15 +703,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -777,15 +758,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1438,15 +1407,15 @@
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/custom-errors/index.html b/user-guide/custom-errors/index.html
index 8e575a206..ffdbb2598 100644
--- a/user-guide/custom-errors/index.html
+++ b/user-guide/custom-errors/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -718,15 +703,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -777,15 +758,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1264,15 +1233,15 @@ NGINX does not change the response from the custom default backend.</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/default-backend/index.html b/user-guide/default-backend/index.html
index a29592ecf..3792b85b4 100644
--- a/user-guide/default-backend/index.html
+++ b/user-guide/default-backend/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -718,15 +703,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -777,15 +758,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1222,15 +1191,15 @@ provides an additional service for the purpose of customizing the error pages se
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/exposing-tcp-udp-services/index.html b/user-guide/exposing-tcp-udp-services/index.html
index 89e9ea72b..64ef475c7 100644
--- a/user-guide/exposing-tcp-udp-services/index.html
+++ b/user-guide/exposing-tcp-udp-services/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -718,15 +703,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -777,15 +758,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1263,15 +1232,15 @@ The next example shows how to expose the service <code>kube-dns</code> running i
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/external-articles/index.html b/user-guide/external-articles/index.html
index c2b33175f..246c9ba17 100644
--- a/user-guide/external-articles/index.html
+++ b/user-guide/external-articles/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -718,15 +703,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -777,15 +758,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -838,15 +815,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -916,15 +889,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1216,15 +1185,15 @@
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/fcgi-services/index.html b/user-guide/fcgi-services/index.html
index dd644254b..20a15ebb6 100644
--- a/user-guide/fcgi-services/index.html
+++ b/user-guide/fcgi-services/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -630,9 +615,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Exposing FCGI services
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Exposing FCGI services" class="md-nav__link md-nav__link--active">
@@ -647,9 +630,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -778,15 +759,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -837,15 +814,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -898,15 +871,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -976,15 +945,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1186,9 +1151,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1411,15 +1374,15 @@ Using the <em>namespace/</em> prefix is also supported, for example:</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/ingress-path-matching/index.html b/user-guide/ingress-path-matching/index.html
index 625806b71..d0ba1f962 100644
--- a/user-guide/ingress-path-matching/index.html
+++ b/user-guide/ingress-path-matching/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -642,9 +627,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Regular expressions in paths
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Regular expressions in paths" class="md-nav__link md-nav__link--active">
@@ -659,9 +642,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -791,15 +772,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -850,15 +827,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -911,15 +884,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -989,15 +958,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1199,9 +1164,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1478,15 +1441,15 @@ location ~* &quot;^/foo/bar/bar&quot; {
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/miscellaneous/index.html b/user-guide/miscellaneous/index.html
index c91fb1a7e..572b42d14 100644
--- a/user-guide/miscellaneous/index.html
+++ b/user-guide/miscellaneous/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -666,9 +651,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Miscellaneous
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Miscellaneous" class="md-nav__link md-nav__link--active">
@@ -683,9 +666,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -793,15 +774,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -852,15 +829,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -913,15 +886,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -991,15 +960,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1201,9 +1166,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1374,15 +1337,15 @@ The previous behavior can be restored using <code>retry-non-idempotent=true</cod
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/monitoring/index.html b/user-guide/monitoring/index.html
index 874f51de7..d0c258e02 100644
--- a/user-guide/monitoring/index.html
+++ b/user-guide/monitoring/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -678,9 +663,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Prometheus and Grafana installation
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Prometheus and Grafana installation" class="md-nav__link md-nav__link--active">
@@ -695,9 +678,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -798,15 +779,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -857,15 +834,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -918,15 +891,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -996,15 +965,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1206,9 +1171,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1410,15 +1373,15 @@ According to the above example, this URL will be http://10.192.0.3:31086</p>
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/multiple-ingress/index.html b/user-guide/multiple-ingress/index.html
index 9ca3a3e1d..7ec93c1aa 100644
--- a/user-guide/multiple-ingress/index.html
+++ b/user-guide/multiple-ingress/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -690,9 +675,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         Multiple Ingress controllers
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="Multiple Ingress controllers" class="md-nav__link md-nav__link--active">
@@ -707,9 +690,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -751,15 +732,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -810,15 +787,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -871,15 +844,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
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+        <span class="md-nav__icon md-icon"></span>
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+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
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index 513e65054..441c687e9 100644
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@@ -59,6 +59,7 @@
     
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+    
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+        <span class="md-nav__icon md-icon"></span>
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+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
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diff --git a/user-guide/nginx-configuration/configmap/index.html b/user-guide/nginx-configuration/configmap/index.html
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@@ -59,6 +59,7 @@
     
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+    
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+      <span class="md-nav__icon md-icon"></span>
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     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -477,15 +466,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -543,9 +528,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         ConfigMap
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="ConfigMap" class="md-nav__link md-nav__link--active">
@@ -560,9 +543,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1873,15 +1854,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1932,15 +1909,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1993,15 +1966,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -2071,15 +2040,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -2281,9 +2246,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -4072,7 +4035,7 @@ Same for numbers, like "100".</p>
 <tr>
 <td align="left"><a href="#custom-http-errors">custom-http-errors</a></td>
 <td align="left">[]int</td>
-<td align="left">[]int{}</td>
+<td align="left">[]int</td>
 </tr>
 <tr>
 <td align="left"><a href="#proxy-body-size">proxy-body-size</a></td>
@@ -4147,12 +4110,12 @@ Same for numbers, like "100".</p>
 <tr>
 <td align="left"><a href="#whitelist-source-range">whitelist-source-range</a></td>
 <td align="left">[]string</td>
-<td align="left">[]string{}</td>
+<td align="left">[]string</td>
 </tr>
 <tr>
 <td align="left"><a href="#skip-access-log-urls">skip-access-log-urls</a></td>
 <td align="left">[]string</td>
-<td align="left">[]string{}</td>
+<td align="left">[]string</td>
 </tr>
 <tr>
 <td align="left"><a href="#limit-rate">limit-rate</a></td>
@@ -4879,15 +4842,15 @@ It's possible to use here full strings and regular expressions. More details abo
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/nginx-configuration/custom-template/index.html b/user-guide/nginx-configuration/custom-template/index.html
index cdcbf0ff0..39fbea396 100644
--- a/user-guide/nginx-configuration/custom-template/index.html
+++ b/user-guide/nginx-configuration/custom-template/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -477,15 +466,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -720,15 +705,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -779,15 +760,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -840,15 +817,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -918,15 +891,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1261,15 +1230,15 @@ In addition to the built-in functions provided by the Go package the following f
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/nginx-configuration/index.html b/user-guide/nginx-configuration/index.html
index d89a439ce..181a3904d 100644
--- a/user-guide/nginx-configuration/index.html
+++ b/user-guide/nginx-configuration/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
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@@ -59,6 +59,7 @@
     
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+    
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@@ -1218,15 +1187,15 @@
       
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diff --git a/user-guide/nginx-configuration/log-format/index.html b/user-guide/nginx-configuration/log-format/index.html
index 9ee687b93..7168b9926 100644
--- a/user-guide/nginx-configuration/log-format/index.html
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@@ -59,6 +59,7 @@
     
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+    
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@@ -1334,15 +1303,15 @@
       
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-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/third-party-addons/modsecurity/index.html b/user-guide/third-party-addons/modsecurity/index.html
index 843b9f370..97006bfca 100644
--- a/user-guide/third-party-addons/modsecurity/index.html
+++ b/user-guide/third-party-addons/modsecurity/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -711,15 +696,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -779,15 +760,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -840,15 +817,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -918,15 +891,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1224,15 +1193,15 @@ Using <code>enable-owasp-modsecurity-crs: "true"</code> we enable the use of the
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/third-party-addons/opentracing/index.html b/user-guide/third-party-addons/opentracing/index.html
index 97e6cb1c9..102cb655a 100644
--- a/user-guide/third-party-addons/opentracing/index.html
+++ b/user-guide/third-party-addons/opentracing/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -711,15 +696,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -753,9 +734,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         OpenTracing
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="OpenTracing" class="md-nav__link md-nav__link--active">
@@ -770,9 +749,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -839,15 +816,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -900,15 +873,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -978,15 +947,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1188,9 +1153,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1530,15 +1493,15 @@ http://192.168.99.100:30183
       
     </div>
     
-      <script src="../../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
diff --git a/user-guide/tls/index.html b/user-guide/tls/index.html
index 8d0091d05..db690902a 100644
--- a/user-guide/tls/index.html
+++ b/user-guide/tls/index.html
@@ -13,7 +13,7 @@
       
       
       <link rel="shortcut icon" href="../../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.2.3">
+      <meta name="generator" content="mkdocs-1.1.2, mkdocs-material-5.5.12">
     
     
       
@@ -21,14 +21,14 @@
       
     
     
-      <link rel="stylesheet" href="../../assets/stylesheets/main.6e35a1a6.min.css">
+      <link rel="stylesheet" href="../../assets/stylesheets/main.4dd2dd8d.min.css">
       
-        <link rel="stylesheet" href="../../assets/stylesheets/palette.a46bcfb3.min.css">
+        <link rel="stylesheet" href="../../assets/stylesheets/palette.6a5ad368.min.css">
       
       
         
         
-        <meta name="theme-color" content="#009688">
+        <meta name="theme-color" content="#009485">
       
     
     
@@ -46,7 +46,7 @@
     
       
         
-<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview")})</script>
+<script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-118407822-1","kubernetes.github.io"),ga("set","anonymizeIp",!0),ga("send","pageview"),document.addEventListener("DOMContentLoaded",function(){document.forms.search&&document.forms.search.query.addEventListener("blur",function(){if(this.value){var e=document.location.pathname;ga("send","pageview",e+"?q="+this.value)}})}),document.addEventListener("DOMContentSwitch",function(){ga("send","pageview",document.location.pathname)})</script>
 <script async src="https://www.google-analytics.com/analytics.js"></script>
       
     
@@ -59,6 +59,7 @@
     
     <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="green">
   
+    
     <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" for="__drawer"></label>
@@ -268,15 +269,11 @@
     
     <label class="md-nav__link" for="nav-1">
       Welcome
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Welcome" data-md-level="1">
       <label class="md-nav__title" for="nav-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Welcome
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -358,15 +355,11 @@
     
     <label class="md-nav__link" for="nav-2">
       Deployment
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Deployment" data-md-level="1">
       <label class="md-nav__title" for="nav-2">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Deployment
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -450,15 +443,11 @@
     
     <label class="md-nav__link" for="nav-3">
       User guide
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="User guide" data-md-level="1">
       <label class="md-nav__title" for="nav-3">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         User guide
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -475,15 +464,11 @@
     
     <label class="md-nav__link" for="nav-3-1">
       NGINX Configuration
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="NGINX Configuration" data-md-level="2">
       <label class="md-nav__title" for="nav-3-1">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         NGINX Configuration
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -702,9 +687,7 @@
     
       <label class="md-nav__link md-nav__link--active" for="__toc">
         TLS/HTTPS
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 9h14V7H3v2m0 4h14v-2H3v2m0 4h14v-2H3v2m16 0h2v-2h-2v2m0-10v2h2V7h-2m0 6h2v-2h-2v2z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
       </label>
     
     <a href="./" title="TLS/HTTPS" class="md-nav__link md-nav__link--active">
@@ -719,9 +702,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -806,15 +787,11 @@
     
     <label class="md-nav__link" for="nav-3-13">
       Third party addons
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Third party addons" data-md-level="2">
       <label class="md-nav__title" for="nav-3-13">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Third party addons
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -865,15 +842,11 @@
     
     <label class="md-nav__link" for="nav-4">
       Examples
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Examples" data-md-level="1">
       <label class="md-nav__title" for="nav-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Examples
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -926,15 +899,11 @@
     
     <label class="md-nav__link" for="nav-4-4">
       Auth
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Auth" data-md-level="2">
       <label class="md-nav__title" for="nav-4-4">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Auth
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1004,15 +973,11 @@
     
     <label class="md-nav__link" for="nav-4-5">
       Customization
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M8.59 16.58L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
     </label>
     <nav class="md-nav" aria-label="Customization" data-md-level="2">
       <label class="md-nav__title" for="nav-4-5">
-        <span class="md-nav__icon md-icon">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-        </span>
+        <span class="md-nav__icon md-icon"></span>
         Customization
       </label>
       <ul class="md-nav__list" data-md-scrollfix>
@@ -1214,9 +1179,7 @@
   
   
     <label class="md-nav__title" for="__toc">
-      <span class="md-nav__icon md-icon">
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-      </span>
+      <span class="md-nav__icon md-icon"></span>
       Table of contents
     </label>
     <ul class="md-nav__list" data-md-scrollfix>
@@ -1466,15 +1429,15 @@ data:
       
     </div>
     
-      <script src="../../assets/javascripts/vendor.d710d30a.min.js"></script>
-      <script src="../../assets/javascripts/bundle.a45f732b.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
+      <script src="../../assets/javascripts/vendor.3636a4ec.min.js"></script>
+      <script src="../../assets/javascripts/bundle.e9fe3281.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents"}</script>
       
       <script>
         app = initialize({
           base: "../..",
           features: ["tabs", "instant"],
           search: Object.assign({
-            worker: "../../assets/javascripts/worker/search.c03f0417.min.js"
+            worker: "../../assets/javascripts/worker/search.5eca75d3.min.js"
           }, typeof search !== "undefined" && search)
         })
       </script>
