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<!doctype html><html lang=en class=no-js> <head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><link href=https://kubernetes.github.io/ingress-nginx/examples/rewrite/ rel=canonical><link href=../multi-tls/ rel=prev><link href=../static-ip/ rel=next><link rel=icon href=../../assets/images/favicon.png><meta name=generator content="mkdocs-1.5.3, mkdocs-material-9.4.5"><title>Rewrite - Ingress-Nginx Controller</title><link rel=stylesheet href=../../assets/stylesheets/main.6a10b989.min.css><link rel=stylesheet href=../../assets/stylesheets/palette.356b1318.min.css><link rel=preconnect href=https://fonts.gstatic.com crossorigin><link rel=stylesheet href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback"><style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style><link rel=stylesheet href=../../extra.css><script>__md_scope=new URL("../..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script></head> <body dir=ltr data-md-color-scheme=default 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> <div data-md-component=skip> <a href=#rewrite class=md-skip> Skip to content </a> </div> <div data-md-component=announce> </div> <header class="md-header md-header--shadow md-header--lifted" data-md-component=header> <nav class="md-header__inner md-grid" aria-label=Header> <a href=../.. title="Ingress-Nginx Controller" class="md-header__button md-logo" aria-label="Ingress-Nginx Controller" data-md-component=logo> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54Z"/></svg> </a> <label class="md-header__button md-icon" for=__drawer> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg> </label> <div class=md-header__title data-md-component=header-title> <div class=md-header__ellipsis> <div class=md-header__topic> <span class=md-ellipsis> Ingress-Nginx Controller </span> </div> <div class=md-header__topic data-md-component=header-topic> <span class=md-ellipsis> Rewrite </span> </div> </div> </div> <label class="md-header__button md-icon" for=__search> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 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class=md-ellipsis> Installation Guide </span> </a> </li> <li class=md-nav__item> <a href=../../deploy/baremetal/ class=md-nav__link> <span class=md-ellipsis> Bare-metal considerations </span> </a> </li> <li class=md-nav__item> <a href=../../deploy/rbac/ class=md-nav__link> <span class=md-ellipsis> Role Based Access Control (RBAC) </span> </a> </li> <li class=md-nav__item> <a href=../../deploy/upgrade/ class=md-nav__link> <span class=md-ellipsis> Upgrade </span> </a> </li> <li class=md-nav__item> <a href=../../deploy/hardening-guide/ class=md-nav__link> <span class=md-ellipsis> Hardening guide </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_3> <label class=md-nav__link for=__nav_3 id=__nav_3_label tabindex> <span class=md-ellipsis> User Guide </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_3_label 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</li> <li class=md-nav__item> <a href=../../user-guide/nginx-configuration/annotations/ class=md-nav__link> <span class=md-ellipsis> Annotations </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/nginx-configuration/annotations-risk/ class=md-nav__link> <span class=md-ellipsis> Annotations Risks </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/nginx-configuration/configmap/ class=md-nav__link> <span class=md-ellipsis> ConfigMap </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/nginx-configuration/custom-template/ class=md-nav__link> <span class=md-ellipsis> Custom NGINX template </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/nginx-configuration/log-format/ class=md-nav__link> <span class=md-ellipsis> Log format </span> </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../../user-guide/cli-arguments/ class=md-nav__link> <span class=md-ellipsis> Command line arguments </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/custom-errors/ class=md-nav__link> <span class=md-ellipsis> Custom errors </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/default-backend/ class=md-nav__link> <span class=md-ellipsis> Default backend </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/exposing-tcp-udp-services/ class=md-nav__link> <span class=md-ellipsis> Exposing TCP and UDP services </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/fcgi-services/ class=md-nav__link> <span class=md-ellipsis> Exposing FCGI services </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/ingress-path-matching/ class=md-nav__link> <span class=md-ellipsis> Regular expressions in paths </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/external-articles/ class=md-nav__link> <span class=md-ellipsis> External Articles </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/miscellaneous/ class=md-nav__link> <span class=md-ellipsis> Miscellaneous </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/monitoring/ class=md-nav__link> <span class=md-ellipsis> Prometheus and Grafana installation </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/multiple-ingress/ class=md-nav__link> <span class=md-ellipsis> Multiple Ingress controllers </span> </a> </li> <li class=md-nav__item> <a href=../../user-guide/tls/ class=md-nav__link> <span class=md-ellipsis> TLS/HTTPS </span> </a> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_3_13> <label class=md-nav__link for=__nav_3_13 id=__nav_3_13_label tabindex> <span class=md-ellipsis> Third party addons </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_3_13_label aria-expanded=false> <label class=md-nav__title for=__nav_3_13> <span class="md-nav__icon 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data-md-scrollfix> <li class=md-nav__item> <a href=../ class=md-nav__link> <span class=md-ellipsis> Introduction </span> </a> </li> <li class=md-nav__item> <a href=../PREREQUISITES/ class=md-nav__link> <span class=md-ellipsis> Prerequisites </span> </a> </li> <li class=md-nav__item> <a href=../affinity/cookie/ class=md-nav__link> <span class=md-ellipsis> Sticky Sessions </span> </a> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_4> <label class=md-nav__link for=__nav_4_4 id=__nav_4_4_label tabindex> <span class=md-ellipsis> Auth </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_4_label aria-expanded=false> <label class=md-nav__title for=__nav_4_4> <span class="md-nav__icon md-icon"></span> Auth </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../auth/basic/ class=md-nav__link> <span class=md-ellipsis> Basic Authentication </span> </a> </li> <li class=md-nav__item> <a href=../auth/client-certs/ class=md-nav__link> <span class=md-ellipsis> Client Certificate Authentication </span> </a> </li> <li class=md-nav__item> <a href=../auth/external-auth/ class=md-nav__link> <span class=md-ellipsis> External Basic Authentication </span> </a> </li> <li class=md-nav__item> <a href=../auth/oauth-external-auth/ class=md-nav__link> <span class=md-ellipsis> External OAUTH Authentication </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_5> <label class=md-nav__link for=__nav_4_5 id=__nav_4_5_label tabindex> <span class=md-ellipsis> Customization </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_5_label aria-expanded=false> <label class=md-nav__title for=__nav_4_5> <span class="md-nav__icon md-icon"></span> Customization </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../customization/configuration-snippets/ class=md-nav__link> <span class=md-ellipsis> Configuration Snippets </span> </a> </li> <li class=md-nav__item> <a href=../customization/custom-configuration/ class=md-nav__link> <span class=md-ellipsis> Custom Configuration </span> </a> </li> <li class=md-nav__item> <a href=../customization/custom-errors/ class=md-nav__link> <span class=md-ellipsis> Custom Errors </span> </a> </li> <li class=md-nav__item> <a href=../customization/custom-headers/ class=md-nav__link> <span class=md-ellipsis> Custom Headers </span> </a> </li> <li class=md-nav__item> <a href=../customization/external-auth-headers/ class=md-nav__link> <span class=md-ellipsis> External authentication </span> </a> </li> <li class=md-nav__item> <a href=../customization/ssl-dh-param/ class=md-nav__link> <span class=md-ellipsis> Custom DH parameters for perfect forward secrecy </span> </a> </li> <li class=md-nav__item> <a href=../customization/sysctl/ class=md-nav__link> <span class=md-ellipsis> Sysctl tuning </span> </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../docker-registry/ class=md-nav__link> <span class=md-ellipsis> Docker registry </span> </a> </li> <li class=md-nav__item> <a href=../grpc/ class=md-nav__link> <span class=md-ellipsis> gRPC </span> </a> </li> <li class=md-nav__item> <a href=../multi-tls/ class=md-nav__link> <span class=md-ellipsis> Multi TLS certificate termination </span> </a> </li> <li class="md-nav__item md-nav__item--active"> <input class="md-nav__toggle md-toggle" type=checkbox id=__toc> <label class="md-nav__link md-nav__link--active" for=__toc> <span class=md-ellipsis> Rewrite </span> <span class="md-nav__icon md-icon"></span> </label> <a href=./ class="md-nav__link md-nav__link--active"> <span class=md-ellipsis> Rewrite </span> </a> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#prerequisites class=md-nav__link> Prerequisites </a> </li> <li class=md-nav__item> <a href=#deployment class=md-nav__link> Deployment </a> </li> <li class=md-nav__item> <a href=#examples class=md-nav__link> Examples </a> <nav class=md-nav aria-label=Examples> <ul class=md-nav__list> <li class=md-nav__item> <a href=#rewrite-target class=md-nav__link> Rewrite Target </a> </li> <li class=md-nav__item> <a href=#app-root class=md-nav__link> App Root </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../static-ip/ class=md-nav__link> <span class=md-ellipsis> Static IPs </span> </a> </li> <li class=md-nav__item> <a href=../tls-termination/ class=md-nav__link> <span class=md-ellipsis> TLS termination </span> </a> </li> <li class=md-nav__item> <a href=../openpolicyagent/ class=md-nav__link> <span class=md-ellipsis> Open Policy Agent rules </span> </a> </li> <li class=md-nav__item> <a href=../canary/ class=md-nav__link> <span class=md-ellipsis> Canary Deployments </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_5> <label class=md-nav__link for=__nav_5 id=__nav_5_label tabindex> <span class=md-ellipsis> Developer Guide </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_5_label aria-expanded=false> <label class=md-nav__title for=__nav_5> <span class="md-nav__icon md-icon"></span> Developer Guide </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../developer-guide/getting-started/ class=md-nav__link> <span class=md-ellipsis> Getting Started </span> </a> </li> <li class=md-nav__item> <a href=../../developer-guide/code-overview/ class=md-nav__link> <span class=md-ellipsis> Code Overview </span> </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../../faq/ class=md-nav__link> <span class=md-ellipsis> FAQ </span> </a> </li> </ul> </nav> </div> </div> </div> <div class="md-sidebar md-sidebar--secondary" data-md-component=sidebar data-md-type=toc> <div class=md-sidebar__scrollwrap> <div class=md-sidebar__inner> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#prerequisites class=md-nav__link> Prerequisites </a> </li> <li class=md-nav__item> <a href=#deployment class=md-nav__link> Deployment </a> </li> <li class=md-nav__item> <a href=#examples class=md-nav__link> Examples </a> <nav class=md-nav aria-label=Examples> <ul class=md-nav__list> <li class=md-nav__item> <a href=#rewrite-target class=md-nav__link> Rewrite Target </a> </li> <li class=md-nav__item> <a href=#app-root class=md-nav__link> App Root </a> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class=md-content data-md-component=content> <article class="md-content__inner md-typeset"> <h1 id=rewrite>Rewrite<a class=headerlink href=#rewrite title="Permanent link"></a></h1> <p>This example demonstrates how to use <code>Rewrite</code> annotations.</p> <h2 id=prerequisites>Prerequisites<a class=headerlink href=#prerequisites title="Permanent link"></a></h2> <p>You will need to make sure your Ingress targets exactly one Ingress controller by specifying the <a href=../../user-guide/multiple-ingress/ >ingress.class annotation</a>, and that you have an ingress controller <a href=../../deploy/ >running</a> in your cluster.</p> <h2 id=deployment>Deployment<a class=headerlink href=#deployment title="Permanent link"></a></h2> <p>Rewriting can be controlled using the following annotations:</p> <table> <thead> <tr> <th>Name</th> <th>Description</th> <th>Values</th> </tr> </thead> <tbody> <tr> <td>nginx.ingress.kubernetes.io/rewrite-target</td> <td>Target URI where the traffic must be redirected</td> <td>string</td> </tr> <tr> <td>nginx.ingress.kubernetes.io/ssl-redirect</td> <td>Indicates if the location section is only accessible via SSL (defaults to True when Ingress contains a Certificate)</td> <td>bool</td> </tr> <tr> <td>nginx.ingress.kubernetes.io/force-ssl-redirect</td> <td>Forces the redirection to HTTPS even if the Ingress is not TLS Enabled</td> <td>bool</td> </tr> <tr> <td>nginx.ingress.kubernetes.io/app-root</td> <td>Defines the Application Root that the Controller must redirect if it's in <code>/</code> context</td> <td>string</td> </tr> <tr> <td>nginx.ingress.kubernetes.io/use-regex</td> <td>Indicates if the paths defined on an Ingress use regular expressions</td> <td>bool</td> </tr> </tbody> </table> <h2 id=examples>Examples<a class=headerlink href=#examples title="Permanent link"></a></h2> <h3 id=rewrite-target>Rewrite Target<a class=headerlink href=#rewrite-target title="Permanent link"></a></h3> <div class="admonition attention"> <p class=admonition-title>Attention</p> <p>Starting in Version 0.22.0, ingress definitions using the annotation <code>nginx.ingress.kubernetes.io/rewrite-target</code> 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 <a href=https://www.regular-expressions.info/refcapture.html>capture group</a>.</p> </div> <div class="admonition note"> <p class=admonition-title>Note</p> <p><a href=https://www.regular-expressions.info/refcapture.html>Captured groups</a> are saved in numbered placeholders, chronologically, in the form <code>$1</code>, <code>$2</code> ... <code>$n</code>. These placeholders can be used as parameters in the <code>rewrite-target</code> annotation.</p> </div> <div class="admonition note"> <p class=admonition-title>Note</p> <p>Please see the <a href=../../faq/#validation-of-path>FAQ</a> for Validation Of <strong><code>path</code></strong></p> </div> <p>Create an Ingress rule with a rewrite annotation:</p> <div class=highlight><pre><span></span><code><span class=gp>$ </span><span class=nb>echo</span><span class=w> </span><span class=err>&#39;</span>
<span class=go>apiVersion: networking.k8s.io/v1</span>
<span class=go>kind: Ingress</span>
<span class=go>metadata:</span>
<span class=go> annotations:</span>
<span class=go> nginx.ingress.kubernetes.io/use-regex: &quot;true&quot;</span>
<span class=go> nginx.ingress.kubernetes.io/rewrite-target: /$2</span>
<span class=go> name: rewrite</span>
<span class=go> namespace: default</span>
<span class=go>spec:</span>
<span class=go> ingressClassName: nginx</span>
<span class=go> rules:</span>
<span class=go> - host: rewrite.bar.com</span>
<span class=go> http:</span>
<span class=go> paths:</span>
<span class=go> - path: /something(/|$)(.*)</span>
<span class=go> pathType: ImplementationSpecific</span>
<span class=go> backend:</span>
<span class=go> service:</span>
<span class=go> name: http-svc</span>
<span class=go> port: </span>
<span class=go> number: 80</span>
<span class=go>&#39; | kubectl create -f -</span>
</code></pre></div> <p>In this ingress definition, any characters captured by <code>(.*)</code> will be assigned to the placeholder <code>$2</code>, which is then used as a parameter in the <code>rewrite-target</code> annotation.</p> <p>For example, the ingress definition above will result in the following rewrites:</p> <ul> <li><code>rewrite.bar.com/something</code> rewrites to <code>rewrite.bar.com/</code></li> <li><code>rewrite.bar.com/something/</code> rewrites to <code>rewrite.bar.com/</code></li> <li><code>rewrite.bar.com/something/new</code> rewrites to <code>rewrite.bar.com/new</code></li> </ul> <h3 id=app-root>App Root<a class=headerlink href=#app-root title="Permanent link"></a></h3> <p>Create an Ingress rule with an app-root annotation: <div class=highlight><pre><span></span><code>$ echo &quot;
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/app-root: /app1
name: approot
namespace: default
spec:
ingressClassName: nginx
rules:
- host: approot.bar.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: http-svc
port:
number: 80
&quot; | kubectl create -f -
</code></pre></div></p> <p>Check the rewrite is working</p> <div class=highlight><pre><span></span><code>$ 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://approot.bar.com/app1
Connection: keep-alive
</code></pre></div> </article> </div> </div> </main> <footer class=md-footer> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> Made with <a href=https://squidfunk.github.io/mkdocs-material/ target=_blank rel=noopener> Material for MkDocs </a> </div> </div> </div> </footer> </div> <div class=md-dialog data-md-component=dialog> <div class="md-dialog__inner md-typeset"></div> </div> <script id=__config type=application/json>{"base": "../..", "features": ["navigation.tabs", "navigation.tabs.sticky", "navigation.instant", "navigation.sections"], "search": "../../assets/javascripts/workers/search.f886a092.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script> <script src=../../assets/javascripts/bundle.aecac24b.min.js></script> </body> </html>
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