ingress-nginx/kubectl-plugin/index.html

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<title>kubectl plugin - NGINX Ingress Controller</title>
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NGINX Ingress Controller
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kubectl plugin
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How it works
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kubectl plugin
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kubectl plugin
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<a href="#installation" class="md-nav__link">
Installation
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Common Flags
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Subcommands
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backends
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certs
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conf
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exec
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general
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info
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ingresses
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lint
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logs
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ssh
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Development
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Deployment
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Deployment
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<a href="../deploy/" title="Installation Guide" class="md-nav__link">
Installation Guide
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<a href="../deploy/baremetal/" title="Bare-metal considerations" class="md-nav__link">
Bare-metal considerations
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<a href="../deploy/rbac/" title="Role Based Access Control (RBAC)" class="md-nav__link">
Role Based Access Control (RBAC)
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<a href="../deploy/validating-webhook/" title="Validating Webhook (admission controller)" class="md-nav__link">
Validating Webhook (admission controller)
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Upgrade
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User guide
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User guide
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NGINX Configuration
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NGINX Configuration
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<a href="../user-guide/nginx-configuration/" title="Introduction" class="md-nav__link">
Introduction
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<a href="../user-guide/basic-usage/" title="Basic usage" class="md-nav__link">
Basic usage
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<a href="../user-guide/nginx-configuration/annotations/" title="Annotations" class="md-nav__link">
Annotations
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<a href="../user-guide/nginx-configuration/configmap/" title="ConfigMap" class="md-nav__link">
ConfigMap
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<a href="../user-guide/nginx-configuration/custom-template/" title="Custom NGINX template" class="md-nav__link">
Custom NGINX template
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<a href="../user-guide/nginx-configuration/log-format/" title="Log format" class="md-nav__link">
Log format
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<a href="../user-guide/cli-arguments/" title="Command line arguments" class="md-nav__link">
Command line arguments
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<a href="../user-guide/custom-errors/" title="Custom errors" class="md-nav__link">
Custom errors
</a>
</li>
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<a href="../user-guide/default-backend/" title="Default backend" class="md-nav__link">
Default backend
</a>
</li>
<li class="md-nav__item">
<a href="../user-guide/exposing-tcp-udp-services/" title="Exposing TCP and UDP services" class="md-nav__link">
Exposing TCP and UDP services
</a>
</li>
<li class="md-nav__item">
<a href="../user-guide/fcgi-services/" title="Exposing FCGI services" class="md-nav__link">
Exposing FCGI services
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</li>
<li class="md-nav__item">
<a href="../user-guide/ingress-path-matching/" title="Regular expressions in paths" class="md-nav__link">
Regular expressions in paths
</a>
</li>
<li class="md-nav__item">
<a href="../user-guide/external-articles/" title="External Articles" class="md-nav__link">
External Articles
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<a href="../user-guide/miscellaneous/" title="Miscellaneous" class="md-nav__link">
Miscellaneous
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<li class="md-nav__item">
<a href="../user-guide/monitoring/" title="Prometheus and Grafana installation" class="md-nav__link">
Prometheus and Grafana installation
</a>
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<li class="md-nav__item">
<a href="../user-guide/multiple-ingress/" title="Multiple Ingress controllers" class="md-nav__link">
Multiple Ingress controllers
</a>
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TLS/HTTPS
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Third party addons
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Third party addons
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<a href="../user-guide/third-party-addons/modsecurity/" title="ModSecurity Web Application Firewall" class="md-nav__link">
ModSecurity Web Application Firewall
</a>
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<li class="md-nav__item">
<a href="../user-guide/third-party-addons/opentracing/" title="OpenTracing" class="md-nav__link">
OpenTracing
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Examples
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Examples
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<a href="../examples/" title="Introduction" class="md-nav__link">
Introduction
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<a href="../examples/PREREQUISITES/" title="Prerequisites" class="md-nav__link">
Prerequisites
</a>
</li>
<li class="md-nav__item">
<a href="../examples/affinity/cookie/" title="Sticky Sessions" class="md-nav__link">
Sticky Sessions
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Auth
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Auth
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<a href="../examples/auth/basic/" title="Basic Authentication" class="md-nav__link">
Basic Authentication
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<a href="../examples/auth/client-certs/" title="Client Certificate Authentication" class="md-nav__link">
Client Certificate Authentication
</a>
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<a href="../examples/auth/external-auth/" title="External Basic Authentication" class="md-nav__link">
External Basic Authentication
</a>
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<li class="md-nav__item">
<a href="../examples/auth/oauth-external-auth/" title="External OAUTH Authentication" class="md-nav__link">
External OAUTH Authentication
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Customization
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Customization
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<a href="../examples/customization/configuration-snippets/" title="Configuration Snippets" class="md-nav__link">
Configuration Snippets
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<a href="../examples/customization/custom-configuration/" title="Custom Configuration" class="md-nav__link">
Custom Configuration
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<a href="../examples/customization/custom-errors/" title="Custom Errors" class="md-nav__link">
Custom Errors
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<a href="../examples/customization/custom-headers/" title="Custom Headers" class="md-nav__link">
Custom Headers
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<a href="../examples/customization/external-auth-headers/" title="External authentication" class="md-nav__link">
External authentication
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<a href="../examples/customization/ssl-dh-param/" title="Custom DH parameters for perfect forward secrecy" class="md-nav__link">
Custom DH parameters for perfect forward secrecy
</a>
</li>
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<a href="../examples/customization/sysctl/" title="Sysctl tuning" class="md-nav__link">
Sysctl tuning
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<a href="../examples/docker-registry/" title="Docker registry" class="md-nav__link">
Docker registry
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<a href="../examples/grpc/" title="gRPC" class="md-nav__link">
gRPC
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<a href="../examples/multi-tls/" title="Multi TLS certificate termination" class="md-nav__link">
Multi TLS certificate termination
</a>
</li>
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<a href="../examples/rewrite/" title="Rewrite" class="md-nav__link">
Rewrite
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<a href="../examples/static-ip/" title="Static IPs" class="md-nav__link">
Static IPs
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</li>
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<a href="../examples/tls-termination/" title="TLS termination" class="md-nav__link">
TLS termination
</a>
</li>
<li class="md-nav__item">
<a href="../examples/psp/" title="Pod Security Policy (PSP)" class="md-nav__link">
Pod Security Policy (PSP)
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<a href="#installation" class="md-nav__link">
Installation
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Common Flags
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Subcommands
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backends
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<a href="#certs" class="md-nav__link">
certs
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<a href="#conf" class="md-nav__link">
conf
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<a href="#exec" class="md-nav__link">
exec
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<a href="#general" class="md-nav__link">
general
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info
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ingresses
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lint
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logs
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ssh
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<a href="https://github.com/kubernetes/ingress-nginx/edit/master/docs/kubectl-plugin.md" title="Edit this page" class="md-icon md-content__icon">&#xE3C9;</a>
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<h1 id="the-ingress-nginx-kubectl-plugin">The ingress-nginx kubectl plugin<a class="headerlink" href="#the-ingress-nginx-kubectl-plugin" title="Permanent link"></a></h1>
<h2 id="installation">Installation<a class="headerlink" href="#installation" title="Permanent link"></a></h2>
<p>Install <a href="https://github.com/GoogleContainerTools/krew">krew</a>, then run</p>
<div class="codehilite"><pre><span></span><code><span class="go">kubectl krew install ingress-nginx</span>
</code></pre></div>
<p>to install the plugin. Then run</p>
<div class="codehilite"><pre><span></span><code><span class="go">kubectl ingress-nginx --help</span>
</code></pre></div>
<p>to make sure the plugin is properly installed and to get a list of commands:</p>
<div class="codehilite"><pre><span></span><code><span class="go">kubectl ingress-nginx --help</span>
<span class="go">A kubectl plugin for inspecting your ingress-nginx deployments</span>
<span class="go">Usage:</span>
<span class="go"> ingress-nginx [command]</span>
<span class="go">Available Commands:</span>
<span class="go"> backends Inspect the dynamic backend information of an ingress-nginx instance</span>
<span class="go"> certs Output the certificate data stored in an ingress-nginx pod</span>
<span class="go"> conf Inspect the generated nginx.conf</span>
<span class="go"> exec Execute a command inside an ingress-nginx pod</span>
<span class="go"> general Inspect the other dynamic ingress-nginx information</span>
<span class="go"> help Help about any command</span>
<span class="go"> info Show information about the ingress-nginx service</span>
<span class="go"> ingresses Provide a short summary of all of the ingress definitions</span>
<span class="go"> lint Inspect kubernetes resources for possible issues</span>
<span class="go"> logs Get the kubernetes logs for an ingress-nginx pod</span>
<span class="go"> ssh ssh into a running ingress-nginx pod</span>
<span class="go">Flags:</span>
<span class="go"> --as string Username to impersonate for the operation</span>
<span class="go"> --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups.</span>
<span class="go"> --cache-dir string Default HTTP cache directory (default &quot;/Users/alexkursell/.kube/http-cache&quot;)</span>
<span class="go"> --certificate-authority string Path to a cert file for the certificate authority</span>
<span class="go"> --client-certificate string Path to a client certificate file for TLS</span>
<span class="go"> --client-key string Path to a client key file for TLS</span>
<span class="go"> --cluster string The name of the kubeconfig cluster to use</span>
<span class="go"> --context string The name of the kubeconfig context to use</span>
<span class="go"> -h, --help help for ingress-nginx</span>
<span class="go"> --insecure-skip-tls-verify If true, the server&#39;s certificate will not be checked for validity. This will make your HTTPS connections insecure</span>
<span class="go"> --kubeconfig string Path to the kubeconfig file to use for CLI requests.</span>
<span class="go"> -n, --namespace string If present, the namespace scope for this CLI request</span>
<span class="go"> --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&#39;t timeout requests. (default &quot;0&quot;)</span>
<span class="go"> -s, --server string The address and port of the Kubernetes API server</span>
<span class="go"> --token string Bearer token for authentication to the API server</span>
<span class="go"> --user string The name of the kubeconfig user to use</span>
<span class="go">Use &quot;ingress-nginx [command] --help&quot; for more information about a command.</span>
</code></pre></div>
<p>If a new <code class="codehilite"><span class="err">ingress-nginx</span></code> version has just been released, the plugin may not yet have been updated inside the repository. In that case, you can install the latest version of the plugin by running:</p>
<div class="codehilite"><pre><span></span><code><span class="go">(</span>
<span class="go"> set -x; cd &quot;$(mktemp -d)&quot; &amp;&amp;</span>
<span class="go"> curl -fsSLO &quot;https://github.com/kubernetes/ingress-nginx/releases/download/nginx-0.24.0/{ingress-nginx.yaml,kubectl-ingress_nginx-$(uname | tr &#39;[:upper:]&#39; &#39;[:lower:]&#39;)-amd64.tar.gz}&quot; &amp;&amp;</span>
<span class="go"> kubectl krew install \</span>
<span class="go"> --manifest=ingress-nginx.yaml --archive=kubectl-ingress_nginx-$(uname | tr &#39;[:upper:]&#39; &#39;[:lower:]&#39;)-amd64.tar.gz</span>
<span class="go">)</span>
</code></pre></div>
<p>Replacing <code class="codehilite"><span class="err">0.24.0</span></code> with the recently released version.</p>
<h2 id="common-flags">Common Flags<a class="headerlink" href="#common-flags" title="Permanent link"></a></h2>
<ul>
<li>Every subcommand supports the basic <code class="codehilite"><span class="err">kubectl</span></code> configuration flags like <code class="codehilite"><span class="err">--namespace</span></code>, <code class="codehilite"><span class="err">--context</span></code>, <code class="codehilite"><span class="err">--client-key</span></code> and so on.</li>
<li>Subcommands that act on a particular <code class="codehilite"><span class="err">ingress-nginx</span></code> pod (<code class="codehilite"><span class="err">backends</span></code>, <code class="codehilite"><span class="err">certs</span></code>, <code class="codehilite"><span class="err">conf</span></code>, <code class="codehilite"><span class="err">exec</span></code>, <code class="codehilite"><span class="err">general</span></code>, <code class="codehilite"><span class="err">logs</span></code>, <code class="codehilite"><span class="err">ssh</span></code>), support the <code class="codehilite"><span class="err">--deployment &lt;deployment&gt;</span></code> and <code class="codehilite"><span class="err">--pod &lt;pod&gt;</span></code> flags to select either a pod from a deployment with the given name, or a pod with the given name. The <code class="codehilite"><span class="err">--deployment</span></code> flag defaults to <code class="codehilite"><span class="err">nginx-ingress-controller</span></code>.</li>
<li>Subcommands that inspect resources (<code class="codehilite"><span class="err">ingresses</span></code>, <code class="codehilite"><span class="err">lint</span></code>) support the <code class="codehilite"><span class="err">--all-namespaces</span></code> flag, which causes them to inspect resources in every namespace.</li>
</ul>
<h2 id="subcommands">Subcommands<a class="headerlink" href="#subcommands" title="Permanent link"></a></h2>
<p>Note that <code class="codehilite"><span class="err">backends</span></code>, <code class="codehilite"><span class="err">general</span></code>, <code class="codehilite"><span class="err">certs</span></code>, and <code class="codehilite"><span class="err">conf</span></code> require <code class="codehilite"><span class="err">ingress-nginx</span></code> version <code class="codehilite"><span class="err">0.23.0</span></code> or higher.</p>
<h3 id="backends">backends<a class="headerlink" href="#backends" title="Permanent link"></a></h3>
<p>Run <code class="codehilite"><span class="err">kubectl ingress-nginx backends</span></code> to get a JSON array of the backends that an ingress-nginx controller currently knows about:</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx backends -n ingress-nginx
<span class="go">[</span>
<span class="go"> {</span>
<span class="go"> &quot;name&quot;: &quot;default-apple-service-5678&quot;,</span>
<span class="go"> &quot;service&quot;: {</span>
<span class="go"> &quot;metadata&quot;: {</span>
<span class="go"> &quot;creationTimestamp&quot;: null</span>
<span class="go"> },</span>
<span class="go"> &quot;spec&quot;: {</span>
<span class="go"> &quot;ports&quot;: [</span>
<span class="go"> {</span>
<span class="go"> &quot;protocol&quot;: &quot;TCP&quot;,</span>
<span class="go"> &quot;port&quot;: 5678,</span>
<span class="go"> &quot;targetPort&quot;: 5678</span>
<span class="go"> }</span>
<span class="go"> ],</span>
<span class="go"> &quot;selector&quot;: {</span>
<span class="go"> &quot;app&quot;: &quot;apple&quot;</span>
<span class="go"> },</span>
<span class="go"> &quot;clusterIP&quot;: &quot;10.97.230.121&quot;,</span>
<span class="go"> &quot;type&quot;: &quot;ClusterIP&quot;,</span>
<span class="go"> &quot;sessionAffinity&quot;: &quot;None&quot;</span>
<span class="go"> },</span>
<span class="go"> &quot;status&quot;: {</span>
<span class="go"> &quot;loadBalancer&quot;: {}</span>
<span class="go"> }</span>
<span class="go"> },</span>
<span class="go"> &quot;port&quot;: 0,</span>
<span class="go"> &quot;sslPassthrough&quot;: false,</span>
<span class="go"> &quot;endpoints&quot;: [</span>
<span class="go"> {</span>
<span class="go"> &quot;address&quot;: &quot;10.1.3.86&quot;,</span>
<span class="go"> &quot;port&quot;: &quot;5678&quot;</span>
<span class="go"> }</span>
<span class="go"> ],</span>
<span class="go"> &quot;sessionAffinityConfig&quot;: {</span>
<span class="go"> &quot;name&quot;: &quot;&quot;,</span>
<span class="go"> &quot;cookieSessionAffinity&quot;: {</span>
<span class="go"> &quot;name&quot;: &quot;&quot;</span>
<span class="go"> }</span>
<span class="go"> },</span>
<span class="go"> &quot;upstreamHashByConfig&quot;: {</span>
<span class="go"> &quot;upstream-hash-by-subset-size&quot;: 3</span>
<span class="go"> },</span>
<span class="go"> &quot;noServer&quot;: false,</span>
<span class="go"> &quot;trafficShapingPolicy&quot;: {</span>
<span class="go"> &quot;weight&quot;: 0,</span>
<span class="go"> &quot;header&quot;: &quot;&quot;,</span>
<span class="go"> &quot;headerValue&quot;: &quot;&quot;,</span>
<span class="go"> &quot;cookie&quot;: &quot;&quot;</span>
<span class="go"> }</span>
<span class="go"> },</span>
<span class="go"> {</span>
<span class="go"> &quot;name&quot;: &quot;default-echo-service-8080&quot;,</span>
<span class="go"> ...</span>
<span class="go"> },</span>
<span class="go"> {</span>
<span class="go"> &quot;name&quot;: &quot;upstream-default-backend&quot;,</span>
<span class="go"> ...</span>
<span class="go"> }</span>
<span class="go">]</span>
</code></pre></div>
<p>Add the <code class="codehilite"><span class="err">--list</span></code> option to show only the backend names. Add the <code class="codehilite"><span class="err">--backend &lt;backend&gt;</span></code> option to show only the backend with the given name.</p>
<h3 id="certs">certs<a class="headerlink" href="#certs" title="Permanent link"></a></h3>
<p>Use <code class="codehilite"><span class="err">kubectl ingress-nginx certs --host &lt;hostname&gt;</span></code> to dump the SSL cert/key information for a given host. Requires that <code class="codehilite"><span class="err">--enable-dynamic-certificates</span></code> is <code class="codehilite"><span class="err">true</span></code> (this is the default as of version <code class="codehilite"><span class="err">0.24.0</span></code>).</p>
<p><strong>WARNING:</strong> This command will dump sensitive private key information. Don't blindly share the output, and certainly don't log it anywhere.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx certs -n ingress-nginx --host testaddr.local
<span class="go">-----BEGIN CERTIFICATE-----</span>
<span class="go">...</span>
<span class="go">-----END CERTIFICATE-----</span>
<span class="go">-----BEGIN CERTIFICATE-----</span>
<span class="go">...</span>
<span class="go">-----END CERTIFICATE-----</span>
<span class="go">-----BEGIN RSA PRIVATE KEY-----</span>
<span class="go">&lt;REDACTED! DO NOT SHARE THIS!&gt;</span>
<span class="go">-----END RSA PRIVATE KEY-----</span>
</code></pre></div>
<h3 id="conf">conf<a class="headerlink" href="#conf" title="Permanent link"></a></h3>
<p>Use <code class="codehilite"><span class="err">kubectl ingress-nginx conf</span></code> to dump the generated <code class="codehilite"><span class="err">nginx.conf</span></code> file. Add the <code class="codehilite"><span class="err">--host &lt;hostname&gt;</span></code> option to view only the server block for that host:</p>
<div class="codehilite"><pre><span></span><code><span class="go">kubectl ingress-nginx conf -n ingress-nginx --host testaddr.local</span>
<span class="go"> server {</span>
<span class="go"> server_name testaddr.local ;</span>
<span class="go"> listen 80;</span>
<span class="go"> set $proxy_upstream_name &quot;-&quot;;</span>
<span class="go"> set $pass_access_scheme $scheme;</span>
<span class="go"> set $pass_server_port $server_port;</span>
<span class="go"> set $best_http_host $http_host;</span>
<span class="go"> set $pass_port $pass_server_port;</span>
<span class="go"> location / {</span>
<span class="go"> set $namespace &quot;&quot;;</span>
<span class="go"> set $ingress_name &quot;&quot;;</span>
<span class="go"> set $service_name &quot;&quot;;</span>
<span class="go"> set $service_port &quot;0&quot;;</span>
<span class="go"> set $location_path &quot;/&quot;;</span>
<span class="go">...</span>
</code></pre></div>
<h3 id="exec">exec<a class="headerlink" href="#exec" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx exec</span></code> is exactly the same as <code class="codehilite"><span class="err">kubectl exec</span></code>, with the same command flags. It will automatically choose an <code class="codehilite"><span class="err">ingress-nginx</span></code> pod to run the command in.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx <span class="nb">exec</span> -i -n ingress-nginx -- ls /etc/nginx
<span class="go">fastcgi_params</span>
<span class="go">geoip</span>
<span class="go">lua</span>
<span class="go">mime.types</span>
<span class="go">modsecurity</span>
<span class="go">modules</span>
<span class="go">nginx.conf</span>
<span class="go">opentracing.json</span>
<span class="go">owasp-modsecurity-crs</span>
<span class="go">template</span>
</code></pre></div>
<h3 id="general">general<a class="headerlink" href="#general" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx general</span></code> dumps miscellaneous controller state as a JSON object. Currently it just shows the number of controller pods known to a particular controller pod.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx general -n ingress-nginx
<span class="go">{</span>
<span class="go"> &quot;controllerPodsCount&quot;: 1</span>
<span class="go">}</span>
</code></pre></div>
<h3 id="info">info<a class="headerlink" href="#info" title="Permanent link"></a></h3>
<p>Shows the internal and external IP/CNAMES for an <code class="codehilite"><span class="err">ingress-nginx</span></code> service.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx info -n ingress-nginx
<span class="go">Service cluster IP address: 10.187.253.31</span>
<span class="go">LoadBalancer IP|CNAME: 35.123.123.123</span>
</code></pre></div>
<p>Use the <code class="codehilite"><span class="err">--service &lt;service&gt;</span></code> flag if your <code class="codehilite"><span class="err">ingress-nginx</span></code> <code class="codehilite"><span class="err">LoadBalancer</span></code> service is not named <code class="codehilite"><span class="err">ingress-nginx</span></code>.</p>
<h3 id="ingresses">ingresses<a class="headerlink" href="#ingresses" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx ingresses</span></code>, alternately <code class="codehilite"><span class="err">kubectl ingress-nginx ing</span></code>, shows a more detailed view of the ingress definitions in a namespace. Compare:</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl get ingresses --all-namespaces
<span class="go">NAMESPACE NAME HOSTS ADDRESS PORTS AGE</span>
<span class="go">default example-ingress1 testaddr.local,testaddr2.local localhost 80 5d</span>
<span class="go">default test-ingress-2 * localhost 80 5d</span>
</code></pre></div>
<p>vs</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx ingresses --all-namespaces
<span class="go">NAMESPACE INGRESS NAME HOST+PATH ADDRESSES TLS SERVICE SERVICE PORT ENDPOINTS</span>
<span class="go">default example-ingress1 testaddr.local/etameta localhost NO pear-service 5678 5</span>
<span class="go">default example-ingress1 testaddr2.local/otherpath localhost NO apple-service 5678 1</span>
<span class="go">default example-ingress1 testaddr2.local/otherotherpath localhost NO pear-service 5678 5</span>
<span class="go">default test-ingress-2 * localhost NO echo-service 8080 2</span>
</code></pre></div>
<h3 id="lint">lint<a class="headerlink" href="#lint" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx lint</span></code> can check a namespace or entire cluster for potential configuration issues. This command is especially useful when upgrading between <code class="codehilite"><span class="err">ingress-nginx</span></code> versions.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx lint --all-namespaces --verbose
<span class="go">Checking ingresses...</span>
<span class="go">✗ anamespace/this-nginx</span>
<span class="go"> - Contains the removed session-cookie-hash annotation.</span>
<span class="go"> Lint added for version 0.24.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3743</span>
<span class="go">✗ othernamespace/ingress-definition-blah</span>
<span class="go"> - The rewrite-target annotation value does not reference a capture group</span>
<span class="go"> Lint added for version 0.22.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3174</span>
<span class="go">Checking deployments...</span>
<span class="go">✗ namespace2/nginx-ingress-controller</span>
<span class="go"> - Uses removed config flag --sort-backends</span>
<span class="go"> Lint added for version 0.22.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3655</span>
<span class="go"> - Uses removed config flag --enable-dynamic-certificates</span>
<span class="go"> Lint added for version 0.24.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3808</span>
</code></pre></div>
<p>to show the lints added <strong>only</strong> for a particular <code class="codehilite"><span class="err">ingress-nginx</span></code> release, use the <code class="codehilite"><span class="err">--from-version</span></code> and <code class="codehilite"><span class="err">--to-version</span></code> flags:</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx lint --all-namespaces --verbose --from-version <span class="m">0</span>.24.0 --to-version <span class="m">0</span>.24.0
<span class="go">Checking ingresses...</span>
<span class="go">✗ anamespace/this-nginx</span>
<span class="go"> - Contains the removed session-cookie-hash annotation.</span>
<span class="go"> Lint added for version 0.24.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3743</span>
<span class="go">Checking deployments...</span>
<span class="go">✗ namespace2/nginx-ingress-controller</span>
<span class="go"> - Uses removed config flag --enable-dynamic-certificates</span>
<span class="go"> Lint added for version 0.24.0</span>
<span class="go"> https://github.com/kubernetes/ingress-nginx/issues/3808</span>
</code></pre></div>
<h3 id="logs">logs<a class="headerlink" href="#logs" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx logs</span></code> is almost the same as <code class="codehilite"><span class="err">kubectl logs</span></code>, with fewer flags. It will automatically choose an <code class="codehilite"><span class="err">ingress-nginx</span></code> pod to read logs from.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx logs -n ingress-nginx
<span class="go">-------------------------------------------------------------------------------</span>
<span class="go">NGINX Ingress controller</span>
<span class="go"> Release: dev</span>
<span class="go"> Build: git-48dc3a867</span>
<span class="go"> Repository: git@github.com:kubernetes/ingress-nginx.git</span>
<span class="go">-------------------------------------------------------------------------------</span>
<span class="go">W0405 16:53:46.061589 7 flags.go:214] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false)</span>
<span class="go">nginx version: nginx/1.15.9</span>
<span class="go">W0405 16:53:46.070093 7 client_config.go:549] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work.</span>
<span class="go">I0405 16:53:46.070499 7 main.go:205] Creating API client for https://10.96.0.1:443</span>
<span class="go">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</span>
<span class="go">I0405 16:53:46.183359 7 nginx.go:265] Starting NGINX Ingress controller</span>
<span class="go">I0405 16:53:46.193913 7 event.go:209] Event(v1.ObjectReference{Kind:&quot;ConfigMap&quot;, Namespace:&quot;ingress-nginx&quot;, Name:&quot;udp-services&quot;, UID:&quot;82258915-563e-11e9-9c52-025000000001&quot;, APIVersion:&quot;v1&quot;, ResourceVersion:&quot;494&quot;, FieldPath:&quot;&quot;}): type: &#39;Normal&#39; reason: &#39;CREATE&#39; ConfigMap ingress-nginx/udp-services</span>
<span class="go">...</span>
</code></pre></div>
<h3 id="ssh">ssh<a class="headerlink" href="#ssh" title="Permanent link"></a></h3>
<p><code class="codehilite"><span class="err">kubectl ingress-nginx ssh</span></code> is exactly the same as <code class="codehilite"><span class="err">kubectl ingress-nginx exec -it -- /bin/bash</span></code>. Use it when you want to quickly be dropped into a shell inside a running <code class="codehilite"><span class="err">ingress-nginx</span></code> container.</p>
<div class="codehilite"><pre><span></span><code><span class="gp">$</span> kubectl ingress-nginx ssh -n ingress-nginx
<span class="gp">www-data@nginx-ingress-controller-7cbf77c976-wx5pn:/etc/nginx$</span>
</code></pre></div>
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