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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/auth/external-auth/ rel=canonical><link href=../client-certs/ rel=prev><link href=../oauth-external-auth/ rel=next><link rel=icon href=../../../assets/images/favicon.png><meta name=generator content="mkdocs-1.5.3, mkdocs-material-9.4.5"><title>External Basic Authentication - 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=#external-basic-authentication 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 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class="md-nav__icon md-icon"></span> Deployment </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../../deploy/ class=md-nav__link> <span 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 aria-expanded=false> <label class=md-nav__title for=__nav_3> <span class="md-nav__icon md-icon"></span> User Guide </label> <ul class=md-nav__list data-md-scrollfix> <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_1> <label class=md-nav__link for=__nav_3_1 id=__nav_3_1_label tabindex> <span class=md-ellipsis> NGINX Configuration </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_3_1_label aria-expanded=false> <label class=md-nav__title for=__nav_3_1> <span class="md-nav__icon md-icon"></span> NGINX Configuration </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../../user-guide/nginx-configuration/ class=md-nav__link> <span class=md-ellipsis> Introduction </span> </a> </li> <li class=md-nav__item> <a href=../../../user-guide/basic-usage/ class=md-nav__link> <span class=md-ellipsis> Basic usage </span> </a> </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 md-icon"></span> Third party addons </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../../user-guide/third-party-addons/modsecurity/ class=md-nav__link> <span class=md-ellipsis> ModSecurity Web Application Firewall </span> </a> </li> <li class=md-nav__item> <a href=../../../user-guide/third-party-addons/opentelemetry/ class=md-nav__link> <span class=md-ellipsis> OpenTelemetry </span> </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4 checked> <label class=md-nav__link for=__nav_4 id=__nav_4_label tabindex> <span class=md-ellipsis> Examples </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_4_label aria-expanded=true> <label class=md-nav__title for=__nav_4> <span class="md-nav__icon md-icon"></span> Examples </label> <ul class=md-nav__list 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--active md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_4 checked> <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=true> <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=../basic/ class=md-nav__link> <span class=md-ellipsis> Basic Authentication </span> </a> </li> <li class=md-nav__item> <a href=../client-certs/ class=md-nav__link> <span class=md-ellipsis> Client Certificate Authentication </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> External Basic Authentication </span> <span class="md-nav__icon md-icon"></span> </label> <a href=./ class="md-nav__link md-nav__link--active"> <span class=md-ellipsis> External Basic Authentication </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=#example-1 class=md-nav__link> Example 1 </a> </li> <li class=md-nav__item> <a href=#test-1-no-usernamepassword-expect-code-401 class=md-nav__link> Test 1: no username/password (expect code 401) </a> </li> <li class=md-nav__item> <a href=#test-2-valid-usernamepassword-expect-code-200 class=md-nav__link> Test 2: valid username/password (expect code 200) </a> </li> <li class=md-nav__item> <a href=#test-3-invalid-usernamepassword-expect-code-401 class=md-nav__link> Test 3: invalid username/password (expect code 401) </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../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 " 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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> <a href=../../rewrite/ 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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=#example-1 class=md-nav__link> Example 1 </a> </li> <li class=md-nav__item> <a href=#test-1-no-usernamepassword-expect-code-401 class=md-nav__link> Test 1: no username/password (expect code 401) </a> </li> <li class=md-nav__item> <a href=#test-2-valid-usernamepassword-expect-code-200 class=md-nav__link> Test 2: valid username/password (expect code 200) </a> </li> <li class=md-nav__item> <a href=#test-3-invalid-usernamepassword-expect-code-401 class=md-nav__link> Test 3: invalid username/password (expect code 401) </a> </li> </ul> </nav> </div> </div> </div> <div class=md-content data-md-component=content> <article class="md-content__inner md-typeset"> <h1 id=external-basic-authentication>External Basic Authentication<a class=headerlink href=#external-basic-authentication title="Permanent link"></a></h1> <h3 id=example-1>Example 1<a class=headerlink href=#example-1 title="Permanent link"></a></h3> <p>Use an external service (Basic Auth) located in <code>https://httpbin.org</code></p> <div class=highlight><pre><span></span><code>$ kubectl create -f ingress.yaml
ingress &quot;external-auth&quot; 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/v1
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: &quot;2068378&quot;
selfLink: /apis/networking/v1/namespaces/default/ingresses/external-auth
uid: 5c388f1d-8970-11e6-9004-080027d2dc94
spec:
rules:
- host: external-auth-01.sample.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: http-svc
port:
number: 80
status:
loadBalancer:
ingress:
- ip: 172.17.4.99
$
</code></pre></div> <h2 id=test-1-no-usernamepassword-expect-code-401>Test 1: no username/password (expect code 401)<a class=headerlink href=#test-1-no-usernamepassword-expect-code-401 title="Permanent link"></a></h2> <div class=highlight><pre><span></span><code><span class=gp>$ </span>curl<span class=w> </span>-k<span class=w> </span>http://172.17.4.99<span class=w> </span>-v<span class=w> </span>-H<span class=w> </span><span class=s1>&#39;Host: external-auth-01.sample.com&#39;</span>
<span class=go>* Rebuilt URL to: http://172.17.4.99/</span>
<span class=go>* Trying 172.17.4.99...</span>
<span class=go>* Connected to 172.17.4.99 (172.17.4.99) port 80 (#0)</span>
<span class=go>&gt; GET / HTTP/1.1</span>
<span class=go>&gt; Host: external-auth-01.sample.com</span>
<span class=go>&gt; User-Agent: curl/7.50.1</span>
<span class=go>&gt; Accept: */*</span>
<span class=go>&gt;</span>
<span class=go>&lt; HTTP/1.1 401 Unauthorized</span>
<span class=go>&lt; Server: nginx/1.11.3</span>
<span class=go>&lt; Date: Mon, 03 Oct 2016 14:52:08 GMT</span>
<span class=go>&lt; Content-Type: text/html</span>
<span class=go>&lt; Content-Length: 195</span>
<span class=go>&lt; Connection: keep-alive</span>
<span class=go>&lt; WWW-Authenticate: Basic realm=&quot;Fake Realm&quot;</span>
<span class=go>&lt;</span>
<span class=go>&lt;html&gt;</span>
<span class=go>&lt;head&gt;&lt;title&gt;401 Authorization Required&lt;/title&gt;&lt;/head&gt;</span>
<span class=go>&lt;body bgcolor=&quot;white&quot;&gt;</span>
<span class=go>&lt;center&gt;&lt;h1&gt;401 Authorization Required&lt;/h1&gt;&lt;/center&gt;</span>
<span class=go>&lt;hr&gt;&lt;center&gt;nginx/1.11.3&lt;/center&gt;</span>
<span class=go>&lt;/body&gt;</span>
<span class=go>&lt;/html&gt;</span>
<span class=go>* Connection #0 to host 172.17.4.99 left intact</span>
</code></pre></div> <h2 id=test-2-valid-usernamepassword-expect-code-200>Test 2: valid username/password (expect code 200)<a class=headerlink href=#test-2-valid-usernamepassword-expect-code-200 title="Permanent link"></a></h2> <div class=highlight><pre><span></span><code>$ curl -k http://172.17.4.99 -v -H &#39;Host: external-auth-01.sample.com&#39; -u &#39;user:passwd&#39;
* 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 &#39;user&#39;
&gt; GET / HTTP/1.1
&gt; Host: external-auth-01.sample.com
&gt; Authorization: Basic dXNlcjpwYXNzd2Q=
&gt; User-Agent: curl/7.50.1
&gt; Accept: */*
&gt;
&lt; HTTP/1.1 200 OK
&lt; Server: nginx/1.11.3
&lt; Date: Mon, 03 Oct 2016 14:52:50 GMT
&lt; Content-Type: text/plain
&lt; Transfer-Encoding: chunked
&lt; Connection: keep-alive
&lt;
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-
</code></pre></div> <h2 id=test-3-invalid-usernamepassword-expect-code-401>Test 3: invalid username/password (expect code 401)<a class=headerlink href=#test-3-invalid-usernamepassword-expect-code-401 title="Permanent link"></a></h2> <div class=highlight><pre><span></span><code>curl -k http://172.17.4.99 -v -H &#39;Host: external-auth-01.sample.com&#39; -u &#39;user:user&#39;
* 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 &#39;user&#39;
&gt; GET / HTTP/1.1
&gt; Host: external-auth-01.sample.com
&gt; Authorization: Basic dXNlcjp1c2Vy
&gt; User-Agent: curl/7.50.1
&gt; Accept: */*
&gt;
&lt; HTTP/1.1 401 Unauthorized
&lt; Server: nginx/1.11.3
&lt; Date: Mon, 03 Oct 2016 14:53:04 GMT
&lt; Content-Type: text/html
&lt; Content-Length: 195
&lt; Connection: keep-alive
* Authentication problem. Ignoring this.
&lt; WWW-Authenticate: Basic realm=&quot;Fake Realm&quot;
&lt;
&lt;html&gt;
&lt;head&gt;&lt;title&gt;401 Authorization Required&lt;/title&gt;&lt;/head&gt;
&lt;body bgcolor=&quot;white&quot;&gt;
&lt;center&gt;&lt;h1&gt;401 Authorization Required&lt;/h1&gt;&lt;/center&gt;
&lt;hr&gt;&lt;center&gt;nginx/1.11.3&lt;/center&gt;
&lt;/body&gt;
&lt;/html&gt;
* Connection #0 to host 172.17.4.99 left intact
</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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