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Introduction
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Prerequisites
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Sticky Sessions
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Auth
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Basic Authentication
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Client Certificate Authentication
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External Basic Authentication
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External OAUTH Authentication
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Customization
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Configuration Snippets
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Custom Configuration
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Custom Errors
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Custom Headers
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External authentication
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Custom DH parameters for perfect forward secrecy
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gRPC
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Multi TLS certificate termination
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Rewrite
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TLS termination
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Quick Start
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Getting the code
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Initial developer environment build
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Updating the deployment
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Dependencies
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Building
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Nginx Controller
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Deploying
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Testing
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Releasing
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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 >
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< 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 >
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< 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 >
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< div class = "codehilite" > < pre > < span > < / span > mkdir -p $GOPATH/src/k8s.io
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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 >
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< h3 id = "initial-developer-environment-build" > Initial developer environment build< a class = "headerlink" href = "#initial-developer-environment-build" title = "Permanent link" > ¶ < / a > < / h3 >
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< 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 >
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< 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 >
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< div class = "codehilite" > < pre > < span > < / span > $ make dev-env
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< / pre > < / div >
< h3 id = "updating-the-deployment" > Updating the deployment< a class = "headerlink" href = "#updating-the-deployment" title = "Permanent link" > ¶ < / a > < / h3 >
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< p > The nginx controller container image can be rebuilt using:
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< 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 >
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< 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:
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< div class = "codehilite" > < pre > < span > < / span > $ kubectl get pods -n ingress-nginx
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$ kubectl delete pod -n ingress-nginx nginx-ingress-controller-< unique-pod-id>
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< / pre > < / div > < / p >
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< 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 >
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< div class = "codehilite" > < pre > < span > < / span > < span class = "gp" > $< / span > dep version
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< 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 >
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< div class = "codehilite" > < pre > < span > < / span > < span class = "gp" > $< / span > go get -u github.com/golang/dep
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< / pre > < / div >
< p > This will automatically save the dependencies to the < code class = "codehilite" > vendor/< / code > directory.< / p >
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< 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
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< 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 >
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< 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 >
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< 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 >
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< p > Build a raw server binary
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< div class = "codehilite" > < pre > < span > < / span > < span class = "gp" > $< / span > make build
< / pre > < / div > < / p >
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< 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 >
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< 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
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< / pre > < / div >
< p > Push the container image to a remote repository< / p >
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< 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
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< / 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.
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Please check the < a href = "./deploy" > deployment guide< / a > < / p >
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< h2 id = "testing" > Testing< a class = "headerlink" href = "#testing" title = "Permanent link" > ¶ < / a > < / h2 >
< p > To run unit-tests, just run< / p >
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< 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
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< 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 >
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< 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
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< span class = "gp" > $< / span > make e2e-test
< / pre > < / div >
< p > To run unit-tests for lua code locally, run:< / p >
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< 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
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< 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 >
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< p > An example release might look like:
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< div class = "codehilite" > < pre > < span > < / span > $ make release
< / pre > < / div > < / p >
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< 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 >
< / ul >
< / article >
< / div >
< / div >
< / main >
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< div class = "md-flex__cell md-flex__cell--stretch md-footer-nav__title" >
< span class = "md-flex__ellipsis" >
< span class = "md-footer-nav__direction" >
Next
< / span >
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Installation Guide
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< / span >
< / div >
< div class = "md-flex__cell md-flex__cell--shrink" >
< i class = "md-icon md-icon--arrow-forward md-footer-nav__button" > < / i >
< / div >
< / a >
< / nav >
< / div >
< div class = "md-footer-meta md-typeset" >
< div class = "md-footer-meta__inner md-grid" >
< div class = "md-footer-copyright" >
powered by
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< a href = "https://www.mkdocs.org" > MkDocs< / a >
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and
< a href = "https://squidfunk.github.io/mkdocs-material/" >
Material for MkDocs< / a >
< / div >
< / div >
< / div >
< / footer >
< / div >
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< script src = "../assets/javascripts/application.9e1f3b71.js" > < / script >
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< script > app . initialize ( { version : "1.0.4" , url : { base : ".." } } ) < / script >
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< script > ! function ( e , a , t , n , o , c , i ) { e . GoogleAnalyticsObject = o , e . ga = e . ga || function ( ) { ( e . ga . q = e . ga . q || [ ] ) . push ( arguments ) } , e . ga . l = 1 * new Date , c = a . createElement ( t ) , i = a . getElementsByTagName ( t ) [ 0 ] , c . async = 1 , c . src = "https://www.google-analytics.com/analytics.js" , i . parentNode . insertBefore ( c , i ) } ( window , document , "script" , 0 , "ga" ) , ga ( "create" , "UA-118407822-1" , "kubernetes.github.io" ) , ga ( "set" , "anonymizeIp" , ! 0 ) , ga ( "send" , "pageview" ) ; var links = document . getElementsByTagName ( "a" ) ; if ( Array . prototype . map . call ( links , function ( a ) { a . host != document . location . host && a . addEventListener ( "click" , function ( ) { var e = a . getAttribute ( "data-md-action" ) || "follow" ; ga ( "send" , "event" , "outbound" , e , a . href ) } ) } ) , document . forms . search ) { var query = document . forms . search . query ; query . addEventListener ( "blur" , function ( ) { if ( this . value ) { var e = document . location . pathname ; ga ( "send" , "pageview" , e + "?q=" + this . value ) } } ) } < / script >
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< / body >
< / html >