206 lines
6.7 KiB
Markdown
206 lines
6.7 KiB
Markdown
---
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title: Generating Reference Documentation for the Kubernetes API
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content_template: templates/task
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weight: 50
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---
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{{% capture overview %}}
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This page shows how to update the Kubernetes API reference documentation.
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The Kubernetes API reference documentation is built from the
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[Kubernetes OpenAPI spec](https://github.com/kubernetes/kubernetes/blob/master/api/openapi-spec/swagger.json)
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using the [kubernetes-sigs/reference-docs](https://github.com/kubernetes-sigs/reference-docs) generation code.
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If you find bugs in the generated documentation, you need to
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[fix them upstream](/docs/contribute/generate-ref-docs/contribute-upstream/).
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If you need only to regenerate the reference documentation from the [OpenAPI](https://github.com/OAI/OpenAPI-Specification)
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spec, continue reading this page.
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{{% /capture %}}
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{{% capture prerequisites %}}
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{{< include "prerequisites-ref-docs.md" >}}
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{{% /capture %}}
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{{% capture steps %}}
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## Setting up the local repositories
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Create a local workspace and set your `GOPATH`.
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```shell
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mkdir -p $HOME/<workspace>
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export GOPATH=$HOME/<workspace>
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```
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Get a local clone of the following repositories:
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```shell
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go get -u github.com/kubernetes-sigs/reference-docs
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go get -u github.com/go-openapi/loads
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go get -u github.com/go-openapi/spec
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```
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If you don't already have the kubernetes/website repository, get it now:
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```shell
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git clone https://github.com/<your-username>/website $GOPATH/src/github.com/<your-username>/website
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```
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Get a clone of the kubernetes/kubernetes repository as k8s.io/kubernetes:
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```shell
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git clone https://github.com/kubernetes/kubernetes $GOPATH/src/k8s.io/kubernetes
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```
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* The base directory of your clone of the
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[kubernetes/kubernetes](https://github.com/kubernetes/kubernetes) repository is
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`$GOPATH/src/k8s.io/kubernetes.`
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The remaining steps refer to your base directory as `<k8s-base>`.
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* The base directory of your clone of the
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[kubernetes/website](https://github.com/kubernetes/website) repository is
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`$GOPATH/src/github.com/<your username>/website.`
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The remaining steps refer to your base directory as `<web-base>`.
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* The base directory of your clone of the
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[kubernetes-sigs/reference-docs](https://github.com/kubernetes-sigs/reference-docs)
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repository is `$GOPATH/src/github.com/kubernetes-sigs/reference-docs.`
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The remaining steps refer to your base directory as `<rdocs-base>`.
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## Generating the API reference docs
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This section shows how to generate the
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[published Kubernetes API reference documentation](/docs/reference/generated/kubernetes-api/{{< param "version" >}}/).
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### Setting build variables
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* Set `K8S_ROOT` to `<k8s-base>`.
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* Set `WEB_ROOT` to `<web-base>`.
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* Set `K8S_RELEASE` to the version of the docs you want to build.
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For example, if you want to build docs for Kubernetes 1.17, set `K8S_RELEASE` to 1.17.
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For example:
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```shell
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export WEB_ROOT=$(GOPATH)/src/github.com/<your-username>/website
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export K8S_ROOT=$(GOPATH)/src/k8s.io/kubernetes
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export K8S_RELEASE=1.17
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```
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### Creating versioned directory and fetching Open API spec
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The `updateapispec` build target creates the versioned build directory.
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After the directory is created, the Open API spec is fetched from the
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`<k8s-base>` repository. These steps ensure that the version
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of the configuration files and Kubernetes Open API spec match the release version.
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The versioned directory name follows the pattern of `v<major>_<minor>`.
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In the `<rdocs-base>` directory, run the following build target:
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```shell
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cd <rdocs-base>
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make updateapispec
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```
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### Building the API reference docs
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The `copyapi` target builds the API reference and
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copies the generated files to directories in `<web-base>`.
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Run the following command in `<rdocs-base>`:
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```shell
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cd <rdocs-base>
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make copyapi
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```
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Verify that these two files have been generated:
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```shell
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[ -e "<rdocs-base>/gen-apidocs/generators/build/index.html" ] && echo "index.html built" || echo "no index.html"
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[ -e "<rdocs-base>/gen-apidocs/generators/build/navData.js" ] && echo "navData.js built" || echo "no navData.js"
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```
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Go to the base of your local `<web-base>`, and
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view which files have been modified:
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```shell
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cd <web-base>
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git status
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```
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The output is similar to:
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```
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static/docs/reference/generated/kubernetes-api/v1.17/css/bootstrap.min.css
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static/docs/reference/generated/kubernetes-api/v1.17/css/font-awesome.min.css
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static/docs/reference/generated/kubernetes-api/v1.17/css/stylesheet.css
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/FontAwesome.otf
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/fontawesome-webfont.eot
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/fontawesome-webfont.svg
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/fontawesome-webfont.ttf
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/fontawesome-webfont.woff
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static/docs/reference/generated/kubernetes-api/v1.17/fonts/fontawesome-webfont.woff2
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static/docs/reference/generated/kubernetes-api/v1.17/index.html
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static/docs/reference/generated/kubernetes-api/v1.17/js/jquery.scrollTo.min.js
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static/docs/reference/generated/kubernetes-api/v1.17/js/navData.js
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static/docs/reference/generated/kubernetes-api/v1.17/js/scroll.js
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```
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## Updating the API reference index pages
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When generating reference documentation for a new release, update the file,
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`<web-base>/content/en/docs/reference/kubernetes-api/api-index.md` with the new
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version number.
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* Open `<web-base>/content/en/docs/reference/kubernetes-api/api-index.md` for editing,
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and update the API reference version number. For example:
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```
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---
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title: v1.17
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---
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[Kubernetes API v1.17](/docs/reference/generated/kubernetes-api/v1.17/)
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```
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* Open `<web-base>/content/en/docs/reference/_index.md` for editing, and add a
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new link for the latest API reference. Remove the oldest API reference version.
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There should be five links to the most recent API references.
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## Locally test the API reference
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Publish a local version of the API reference.
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Verify the [local preview](http://localhost:1313/docs/reference/generated/kubernetes-api/v1.17/).
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```shell
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cd <web-base>
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make docker-serve
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```
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## Commit the changes
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In `<web-base>` run `git add` and `git commit` to commit the change.
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Submit your changes as a
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[pull request](/docs/contribute/start/) to the
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[kubernetes/website](https://github.com/kubernetes/website) repository.
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Monitor your pull request, and respond to reviewer comments as needed. Continue
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to monitor your pull request until it has been merged.
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{{% /capture %}}
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{{% capture whatsnext %}}
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* [Generating Reference Documentation Quickstart](/docs/contribute/generate-ref-docs/quickstart/)
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* [Generating Reference Docs for Kubernetes Components and Tools](/docs/contribute/generate-ref-docs/kubernetes-components/)
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* [Generating Reference Documentation for kubectl Commands](/docs/contribute/generate-ref-docs/kubectl/)
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{{% /capture %}}
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