1467 lines
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HTML
1467 lines
39 KiB
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Custom Headers
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Custom Upstream server checks
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External authentication, authentication service response headers propagation
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Custom DH parameters for perfect forward secrecy
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</div>
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<div class="md-content">
|
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<article class="md-content__inner md-typeset">
|
|
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|
|
<a href="https://github.com/kubernetes/ingress-nginx/edit/master/docs/development.md" title="Edit this page" class="md-icon md-content__icon"></a>
|
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|
|
<h1 id="developing-for-nginx-ingress-controller">Developing for NGINX Ingress Controller<a class="headerlink" href="#developing-for-nginx-ingress-controller" title="Permanent link">¶</a></h1>
|
|
<p>This document explains how to get started with developing for NGINX Ingress controller.
|
|
It includes how to build, test, and release ingress controllers.</p>
|
|
<h2 id="quick-start">Quick Start<a class="headerlink" href="#quick-start" title="Permanent link">¶</a></h2>
|
|
<h3 id="getting-the-code">Getting the code<a class="headerlink" href="#getting-the-code" title="Permanent link">¶</a></h3>
|
|
<p>The code must be checked out as a subdirectory of k8s.io, and not github.com.</p>
|
|
<div class="codehilite"><pre><span></span>mkdir -p $GOPATH/src/k8s.io
|
|
cd $GOPATH/src/k8s.io
|
|
# Replace "$YOUR_GITHUB_USERNAME" below with your github username
|
|
git clone https://github.com/$YOUR_GITHUB_USERNAME/ingress-nginx.git
|
|
cd ingress-nginx
|
|
</pre></div>
|
|
|
|
|
|
<h3 id="initial-developer-environment-build">Initial developer environment build<a class="headerlink" href="#initial-developer-environment-build" title="Permanent link">¶</a></h3>
|
|
<blockquote>
|
|
<p><strong>Prequisites</strong>: Minikube must be installed.
|
|
See <a href="https://github.com/kubernetes/minikube/releases">releases</a> for installation instructions. </p>
|
|
</blockquote>
|
|
<p>If you are using <strong>MacOS</strong> and deploying to <strong>minikube</strong>, the following command will build the local nginx controller container image and deploy the ingress controller onto a minikube cluster with RBAC enabled in the namespace <code class="codehilite">ingress-nginx</code>:</p>
|
|
<div class="codehilite"><pre><span></span>$ make dev-env
|
|
</pre></div>
|
|
|
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|
|
<h3 id="updating-the-deployment">Updating the deployment<a class="headerlink" href="#updating-the-deployment" title="Permanent link">¶</a></h3>
|
|
<p>The nginx controller container image can be rebuilt using:</p>
|
|
<div class="codehilite"><pre><span></span>$ <span class="nv">ARCH</span><span class="o">=</span>amd64 <span class="nv">TAG</span><span class="o">=</span>dev <span class="nv">REGISTRY</span><span class="o">=</span><span class="nv">$USER</span>/ingress-controller make build container
|
|
</pre></div>
|
|
|
|
|
|
<p>The image will only be used by pods created after the rebuild. To delete old pods which will cause new ones to spin up:</p>
|
|
<div class="codehilite"><pre><span></span>$ kubectl get pods -n ingress-nginx
|
|
$ kubectl delete pod -n ingress-nginx nginx-ingress-controller-<unique-pod-id>
|
|
</pre></div>
|
|
|
|
|
|
<h2 id="dependencies">Dependencies<a class="headerlink" href="#dependencies" title="Permanent link">¶</a></h2>
|
|
<p>The build uses dependencies in the <code class="codehilite">vendor</code> directory, which
|
|
must be installed before building a binary/image. Occasionally, you
|
|
might need to update the dependencies.</p>
|
|
<p>This guide requires you to install the <a href="https://github.com/golang/dep">dep</a> dependency tool.</p>
|
|
<p>Check the version of <code class="codehilite">dep</code> you are using and make sure it is up to date.</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> dep version
|
|
<span class="go">dep:</span>
|
|
<span class="go"> version : devel</span>
|
|
<span class="go"> build date : </span>
|
|
<span class="go"> git hash : </span>
|
|
<span class="go"> go version : go1.9</span>
|
|
<span class="go"> go compiler : gc</span>
|
|
<span class="go"> platform : linux/amd64</span>
|
|
</pre></div>
|
|
|
|
|
|
<p>If you have an older version of <code class="codehilite">dep</code>, you can update it as follows:</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> go get -u github.com/golang/dep
|
|
</pre></div>
|
|
|
|
|
|
<p>This will automatically save the dependencies to the <code class="codehilite">vendor/</code> directory.</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nb">cd</span> <span class="nv">$GOPATH</span>/src/k8s.io/ingress-nginx
|
|
<span class="gp">$</span> dep ensure
|
|
<span class="gp">$</span> dep ensure -update
|
|
<span class="gp">$</span> dep prune
|
|
</pre></div>
|
|
|
|
|
|
<h2 id="building">Building<a class="headerlink" href="#building" title="Permanent link">¶</a></h2>
|
|
<p>All ingress controllers are built through a Makefile. Depending on your
|
|
requirements you can build a raw server binary, a local container image,
|
|
or push an image to a remote repository.</p>
|
|
<p>In order to use your local Docker, you may need to set the following environment variables:</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">#</span> <span class="s2">"gcloud docker"</span> <span class="o">(</span>default<span class="o">)</span> or <span class="s2">"docker"</span>
|
|
<span class="gp">$</span> <span class="nb">export</span> <span class="nv">DOCKER</span><span class="o">=</span><docker>
|
|
|
|
<span class="gp">#</span> <span class="s2">"quay.io/kubernetes-ingress-controller"</span> <span class="o">(</span>default<span class="o">)</span>, <span class="s2">"index.docker.io"</span>, or your own registry
|
|
<span class="gp">$</span> <span class="nb">export</span> <span class="nv">REGISTRY</span><span class="o">=</span><your-docker-registry>
|
|
</pre></div>
|
|
|
|
|
|
<p>To find the registry simply run: <code class="codehilite">docker system info | grep Registry</code></p>
|
|
<h3 id="nginx-controller">Nginx Controller<a class="headerlink" href="#nginx-controller" title="Permanent link">¶</a></h3>
|
|
<p>Build a raw server binary</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> make build
|
|
</pre></div>
|
|
|
|
|
|
<p><a href="https://github.com/kubernetes/ingress-nginx/issues/387">TODO</a>: add more specific instructions needed for raw server binary.</p>
|
|
<p>Build a local container image</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nv">TAG</span><span class="o">=</span><tag> <span class="nv">REGISTRY</span><span class="o">=</span><span class="nv">$USER</span>/ingress-controller make docker-build
|
|
</pre></div>
|
|
|
|
|
|
<p>Push the container image to a remote repository</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nv">TAG</span><span class="o">=</span><tag> <span class="nv">REGISTRY</span><span class="o">=</span><span class="nv">$USER</span>/ingress-controller make docker-push
|
|
</pre></div>
|
|
|
|
|
|
<h2 id="deploying">Deploying<a class="headerlink" href="#deploying" title="Permanent link">¶</a></h2>
|
|
<p>There are several ways to deploy the ingress controller onto a cluster.
|
|
Please check the <a href="../deploy">deployment guide</a></p>
|
|
<h2 id="testing">Testing<a class="headerlink" href="#testing" title="Permanent link">¶</a></h2>
|
|
<p>To run unit-tests, just run</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nb">cd</span> <span class="nv">$GOPATH</span>/src/k8s.io/ingress-nginx
|
|
<span class="gp">$</span> make <span class="nb">test</span>
|
|
</pre></div>
|
|
|
|
|
|
<p>If you have access to a Kubernetes cluster, you can also run e2e tests using ginkgo.</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nb">cd</span> <span class="nv">$GOPATH</span>/src/k8s.io/ingress-nginx
|
|
<span class="gp">$</span> make e2e-test
|
|
</pre></div>
|
|
|
|
|
|
<p>To run unit-tests for lua code locally, run:</p>
|
|
<div class="codehilite"><pre><span></span><span class="gp">$</span> <span class="nb">cd</span> <span class="nv">$GOPATH</span>/src/k8s.io/ingress-nginx
|
|
<span class="gp">$</span> ./rootfs/etc/nginx/lua/test/up.sh
|
|
<span class="gp">$</span> make lua-test
|
|
</pre></div>
|
|
|
|
|
|
<p>Lua tests are located in <code class="codehilite">$GOPATH/src/k8s.io/ingress-nginx/rootfs/etc/nginx/lua/test</code>. When creating a new test file it must follow the naming convention <code class="codehilite"><mytest>_test.lua</code> or it will be ignored. </p>
|
|
<h2 id="releasing">Releasing<a class="headerlink" href="#releasing" title="Permanent link">¶</a></h2>
|
|
<p>All Makefiles will produce a release binary, as shown above. To publish this
|
|
to a wider Kubernetes user base, push the image to a container registry, like
|
|
<a href="https://cloud.google.com/container-registry/">gcr.io</a>. All release images are hosted under <code class="codehilite">gcr.io/google_containers</code> and
|
|
tagged according to a <a href="http://semver.org/">semver</a> scheme.</p>
|
|
<p>An example release might look like:</p>
|
|
<div class="codehilite"><pre><span></span>$ make release
|
|
</pre></div>
|
|
|
|
|
|
<p>Please follow these guidelines to cut a release:</p>
|
|
<ul>
|
|
<li>Update the <a href="https://help.github.com/articles/creating-releases/">release</a>
|
|
page with a short description of the major changes that correspond to a given
|
|
image tag.</li>
|
|
<li>Cut a release branch, if appropriate. Release branches follow the format of
|
|
<code class="codehilite">controller-release-version</code>. Typically, pre-releases are cut from HEAD.
|
|
All major feature work is done in HEAD. Specific bug fixes are
|
|
cherry-picked into a release branch.</li>
|
|
<li>If you're not confident about the stability of the code,
|
|
<a href="https://help.github.com/articles/working-with-tags/">tag</a> it as alpha or beta.
|
|
Typically, a release branch should have stable code.</li>
|
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</ul>
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