Add versioning to the docs #869

artberger · 2025-05-23T15:13:53Z

Addresses #422

Summary of changes

Updates the doc publishing process to add versioning capability. The docs are versioned using a MkDocs plug-in called mike (GitHub project here).

Right now, I have the versioned docs working locally based off my fork in Netlify here: https://adb-inf-extension.netlify.app/main/

Overview of the new process:

A make-docs.sh script is added to run mike to build versioned docs based on the branch, such as main or a release branch like release-0.1. This script is turned into a make target, which is also called as part of the release process.
When the script runs, mike builds the HTML files for the version based on the content in that branch.
The versioned files are then put in their own directories on a docs branch.
Netlify is updated to build automatically based on changes to the docs branch.

The versioned process is described in a Docs Contribution guide that is added in this PR. This way, people can see how the versioning process works, and manually update it if needed (such as to delete an old version). See preview: https://adb-inf-extension.netlify.app/main/contributing/docs/#version-the-docs

Order of steps to update the docs publishing process

Step 1: Before merging this PR, create the docs branch.

You have to do a one-time creation of a clean docs branch so that the mike tool can put the versioned docs on that branch.

Locally, I used the following commands to do that:

git checkout --orphan docs
git rm -rf .
git clean -fdx
git commit --allow-empty -m "Initial commit of docs"
git push origin docs

Step 2: Merge this PR

One caveat is, the Netlify builds will fail on this PR unless we change Netlify first (see the Netlify section). I think it would keep the currently published content on the GIE URL until it has new content to replace it with, but I am not sure.

Step 3: Copy the netlify.toml file to the docs branch

We might have to copy this to the docs branch, I am not sure how the Netlify is set up in this repo. By putting it on the docs branch, the publishing branch has the Netlify settings so we wouldn't have to update the Netlify settings in the UI (see section later).

Step 4: Build versioned docs to the docs branch.

To build the versioned docs, we would check out each branch (main, the release branches) and run make docs.

Netlify considerations

I am not sure who or how the GIE Netlify is currently set up.

In my Netlify account, I have the following settings. These are reflected in the netlify.toml that we would need to add to the docs branch.

This way, Netlify builds based on changes to the docs branch. You don't need a specific build command because the HTML files are already built to the docs branch through the mike versioning.

Build & Deploy > Build settings

Runtime: Not set
Base directory: /
Package directory: Not set
Build command: Not set
Publish directory: .

Build & Deploy > Branches and deploy contexts

Production branch: docs

the previous /images/ does not work when the content is versioned

otherwise, it did not appear because its in the same header_topic element that was getting hidden

Based on Gateway API https://github.com/kubernetes-sigs/gateway-api/blob/main/Makefile#L162-L172

in case release doesn't have v or has extra info after patch

netlify · 2025-05-23T15:13:59Z

❌ Deploy Preview for gateway-api-inference-extension failed. Why did it fail? →

Name	Link
🔨 Latest commit	`77612a0`
🔍 Latest deploy log	https://app.netlify.com/projects/gateway-api-inference-extension/deploys/684055f906ea7400071826a0

k8s-ci-robot · 2025-05-23T15:14:01Z

[APPROVALNOTIFIER] This PR is NOT APPROVED

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k8s-ci-robot · 2025-05-23T15:14:03Z

Welcome @artberger!

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k8s-ci-robot · 2025-05-23T15:14:04Z

Hi @artberger. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

So that the banner works to send users from main or old branches to latest

So that latest is copied and actually available as a url /latest/ and not just the version, like /0.3/

artberger

Adding context to the changes

artberger · 2025-05-27T17:29:38Z

.github/ISSUE_TEMPLATE/new-release.md

@@ -66,7 +66,7 @@ This document defines the process for releasing Gateway API Inference Extension.
     git checkout -b release-${MAJOR}.${MINOR} ${REMOTE}/release-${MAJOR}.${MINOR}
     ```

-4. Update release-specific content, generate release artifacts, and stage the changes.
+4. Update release-specific content, generate release artifacts, build the versioned docs, and stage the changes.


Update release notes to mention that the docs are now automatically updated.

artberger · 2025-05-27T17:30:41Z

Makefile

@@ -283,6 +285,18 @@ api-ref-docs:
 		--renderer=markdown \
 		--output-path=${PWD}/site-src/reference/spec.md

+# Generate a virtualenv install, which is useful for hacking on the


Added target to make a virtualenv, copied from the Gateway API project

Is the virtualenv necessary if we have the build-docs target that uses a Docker container to build docs?

yeah, it wouldn't be needed for the local preview. I left it in for if people are doing local development on the docs theme. For example, if you needed to add some other mkdocs plugins down the road, or if you wanted to manually set the versions with mike (such as to remove an old version), it could be useful.

wdyt?

artberger · 2025-05-27T17:31:10Z

Makefile

-build-docs-netlify:
-	pip install -r hack/mkdocs/image/requirements.txt
-	python -m mkdocs build
+.PHONY: crd-ref-docs


Removed unused doc targets and added new docs target to run the new make-docs script

See https://github.com/kubernetes-sigs/gateway-api-inference-extension/pull/869/files#r2121745261 about removing this target.

artberger · 2025-05-27T17:31:20Z

Makefile

@@ -321,7 +335,7 @@ artifacts: kustomize
 	@$(call clean-manifests)

 .PHONY: release
-release: artifacts release-quickstart verify test # Create a release.
+release: artifacts release-quickstart verify test docs # Create a release.


Added docs to the release target

artberger · 2025-05-27T17:32:38Z

hack/mkdocs/image/entrypoint.sh

+# Use mike serve for versioning support
+mike serve -a 0.0.0.0:3000 --branch docs


Updated the image for local preview to use the versioning

nit: Add new blank line

artberger · 2025-05-27T17:34:47Z

hack/mkdocs/make-docs.sh

@@ -0,0 +1,118 @@
+#!/bin/bash


The make-docs.sh script

Reuses some of the front matter content from Gateway make docs

Gets version from the branch by using the git tool

Checks if the version should be marked as latest by using the gh tool

Builds API docs by calling the make target

Makes the versioned docs by using the mike tool

The make docs script that the release calls would run this script. People could also check out the branch they want to build content for and run make docs.

@artberger I prefer not adding gh as a dependency. Instead of using gh, the following func finds the most‐recent semver‐style tag and compares it against MAJOR.MINOR.

# ----------------------------------------------------------------------------- # Check if version should be marked as latest (ignore release candidates "-rc" or any hyphenated suffix) # ----------------------------------------------------------------------------- is_latest_version() { # 1) List all tags matching semver-ish (vX.Y[.Z] or X.Y[.Z]), sort by version descending, # and pick the very first one. local latest_tag latest_tag=$( git tag --list 'v[0-9]*.[0-9]*' \ --list '[0-9]*.[0-9]*' \ --sort=-v:refname | head -n1 ) if [[ -z "$latest_tag" ]]; then echo "Error: Could not find any semver‐style tags." return 1 fi # 2) Strip leading 'v', then drop anything after the first hyphen (e.g. "0.3.0-rc.1" → "0.3.0") local bare="${latest_tag#v}" # remove leading "v" if present bare="${bare%%-*}" # drop "-<anything>" (so "0.3.0-rc.1" → "0.3.0") # 3) Now extract MAJOR and MINOR from e.g. "0.3.0" or "2.5" if [[ "$bare" =~ ^([0-9]+)\.([0-9]+)(\.[0-9]+)?$ ]]; then local latest_major="${BASH_REMATCH[1]}" local latest_minor="${BASH_REMATCH[2]}" else echo "Error: Could not parse version from latest tag: ${latest_tag} (bare='${bare}')" return 1 fi # 4) Compare numeric MAJOR/MINOR # If branch’s MAJOR > latest_major, or (MAJOR == latest_major && MINOR ≥ latest_minor), it’s “latest” or newer. if (( MAJOR > latest_major )) || \ (( MAJOR == latest_major && MINOR >= latest_minor )); then return 0 fi return 1 }

Note: ^ needs to be tested to confirm expected results.

Thanks, the change from gh to git makes sense. I also updated it to fix an error that was tagging versions as latest that were equal or greater, so now it's just equal to latest. The update worked in the make docs and make live-docs previews for me.

artberger · 2025-05-27T17:37:03Z

netlify.toml

@@ -1,6 +1,10 @@
 # netlify configuration
 [build]
-publish = "site"
-command = "make build-docs-netlify"
+publish = "."


Instead of building off updates to main and running the old make command, now Netlify:

builds of docs branch

publishes the content on the docs branch for all the versioned folders, not just the site folder

doesn't need to run a build command, because mike already builds the content to HTML files in the docs branch

artberger · 2025-05-27T17:37:23Z

site-src/contributing/docs.md

@@ -0,0 +1,140 @@
+# Contributing to the docs


Added a contributors guide for the docs that outlines the versioning process as well as other things like local preview

artberger · 2025-05-27T17:38:08Z

site-src/overrides/main.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}


This adds a banner on versions that aren't latest, to point users to latest in case they don't intend to be on this other branch.

danehans · 2025-05-27T17:45:04Z

@robscott PTAL at the approach that is being used here for docs versioning. If you agree with this approach and have access to the GIE Netlify project, can you tackle step 4?

As a side note, does anyone else have access to the GIE Netlify project?

robscott · 2025-05-28T22:07:41Z

@robscott PTAL at the approach that is being used here for docs versioning. If you agree with this approach and have access to the GIE Netlify project, can you tackle step 4?

As a side note, does anyone else have access to the GIE Netlify project?

Unfortunately I don't have access to Netlify here. I think there's a small set of admins that control Netlify for all Kubernetes projects. Maybe #github-management Slack channel would have an answer. In the past, @mrbobbytables has helped us get Netlify setup.

Just to clarify, is the problem that these changes can't be configured in netlify.toml alone and instead require higher level changes?

artberger · 2025-05-29T13:50:30Z

@robscott thanks for the information. I was not sure how the GIE project's Netlify worked, and so I was sharing how I got it working for my forked repo and the GIE Netlify project I set up in my personal Netlify account.

Update: I updated the netlify.toml file to mirror the settings that I have in my Netlify account. This file would go on the docs branch. I believe the Netlify builds on this PR are failing because they still expect things to be the "old way," such as looking for a site directory like the error message mentions.

to match settings in Netlify

danehans · 2025-06-02T16:14:31Z

.gitignore

@@ -30,3 +30,6 @@ go.work.sum

 # generated docs
 site
+
+# virtual environment for mkdocs
+.venv


nit: Add new line

danehans · 2025-06-02T16:35:36Z

netlify.toml

+# Specify that we want to build from the docs branch
+[context.production]
+  branch = "docs"


nit: New blank line

danehans · 2025-06-02T17:10:26Z

Makefile


 .PHONY: live-docs
 live-docs:
 	docker build -t gaie/mkdocs hack/mkdocs/image
-	docker run --rm -it -p 3000:3000 -v ${PWD}:/docs gaie/mkdocs
+	docker run --rm -it -p 3000:3000 -v ${PWD}:/docs gaie/mkdocs mike serve -a 0.0.0.0:3000 --branch docs


This change should not be required since it's implemented in entrypoint.sh. Can you remove and test?

This target fails when using your branch:

make live-docs docker build -t gaie/mkdocs hack/mkdocs/image [+] Building 0.5s (11/11) FINISHED => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 886B 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 2B 0.0s => [internal] load metadata for docker.io/library/python:3.13-alpine 0.4s => [internal] load build context 0.0s => => transferring context: 1.55kB 0.0s => [1/6] FROM docker.io/library/python:3.13-alpine@sha256:a94caf6aab428e086bc398beaf64a6b7a0fad4589573462f52362fd760e64cc9 0.0s => CACHED [2/6] RUN apk add --no-cache git 0.0s => CACHED [3/6] COPY requirements.txt /requirements.txt 0.0s => CACHED [4/6] RUN pip install -r /requirements.txt 0.0s => CACHED [5/6] WORKDIR /docs 0.0s => CACHED [6/6] COPY entrypoint.sh / 0.0s => exporting to image 0.0s => => exporting layers 0.0s => => writing image sha256:3d3d10a2a4a520efc0ef0fc01e1aabb39b5911762e0226b637b2f80f56ce66b7 0.0s => => naming to docker.io/gaie/mkdocs 0.0s Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them docker run --rm -it -p 3000:3000 -v /Users/solo-system-dhansen/go/src/sigs.k8s.io/gateway-api-inference-extension:/docs gaie/mkdocs mike serve -a 0.0.0.0:3000 --branch docs Config value 'plugins': Plugin 'macros' option 'j2_line_comment_prefix': Unrecognised configuration name: j2_line_comment_prefix Starting server at http://0.0.0.0:3000/ Press Ctrl+C to quit. 172.17.0.1 - - [02/Jun/2025 18:01:58] code 404, message File not found. Did you forget to run `mike set-default`? Alternately, you can navigate to 36fe7b09f30a:3000/[some-version] to see your docs 172.17.0.1 - - [02/Jun/2025 18:01:58] "GET / HTTP/1.1" 404 -

Note that I see WARNING - Config value 'plugins': Plugin 'macros' option 'j2_line_comment_prefix': Unrecognised configuration name: j2_line_comment_prefix using the main branch so that is not the root case.

I removed the mike serve -a 0.0.0.0:3000 --branch docs line, and was able to run the target.

For the error you saw:

code 404, message File not found. Did you forget to run mike set-default? Alternately, you can navigate to 36fe7b09f30a:3000/[some-version] to see your docs

The entrypoint.sh now sets a default version. I think the duplicate mike serve command that I removed was throwing it off and since you didn't have a default set locally, it was throwing that error.

danehans · 2025-06-02T17:30:31Z

Makefile

+crd-ref-docs: ## Install crd-ref-docs if not already installed
+	@which crd-ref-docs >/dev/null 2>&1 || { \
+		echo "Installing crd-ref-docs..."; \
+		GOBIN=$(LOCALBIN) go install github.com/elastic/crd-ref-docs@latest; \
+	}


I get the following error when calling this target (MacOS):

Installing crd-ref-docs... chmod +x ./hack/mkdocs/make-docs.sh ... bash: line 1: crd-ref-docs: command not found make[1]: *** [api-ref-docs] Error 127 make: *** [docs] Error 2

Can you take a look at how the other dependencies are installed and follow the same pattern? Make sure to use a tagged release instead of latest.

After resolving ^ issue, I now hit the following issue:

$ make docs chmod +x ./hack/mkdocs/make-docs.sh ... Error: Could not find any releases. This version will be deployed, but not marked as 'latest'. ./hack/mkdocs/make-docs.sh: line 113: mike: command not found make: *** [docs] Error 127

To avoid these local deps issues, why not run ./hack/mkdocs/make-docs.sh in the Docker container instead of locally?

Thanks for pointing out the crd-ref-docs issue. I removed these from the Makefile and instead put it in the make-docs.sh similar to how the Gateway API project does it here: https://github.com/kubernetes-sigs/gateway-api/blob/main/hack/mkdocs/generate.sh

To avoid these local deps issues, why not run ./hack/mkdocs/make-docs.sh in the Docker container instead of locally?

So I might be misunderstanding this, but the Docker container I thought was just to make the local preview of the docs. If we run the make-docs script in the container, I think it would build and push the docs each time someone ran the container for a local preview, which might not be what we wanted.

danehans · 2025-06-02T18:12:22Z

hack/mkdocs/image/entrypoint.sh

  exit 0;
 fi

-mkdocs serve --dev-addr=0.0.0.0:3000 --livereload


Does mike serve support --livereload by default?

no, unfortunately I got this error and didn't see it in the --help or project :(

mike: error: unrecognized arguments: --live-reload

danehans · 2025-06-02T18:23:45Z

Makefile

+# docs since it installs mkdocs and all the right dependencies.
+#
+# On Ubuntu, this requires the python3-venv package.
+virtualenv: .venv


I checkout a release-0.4 branch, call this target and run make docs in the venv:

$ make docs ... Deploying docs for version 0.4 unknown flag: --json Usage: gh release list [flags] Flags: --exclude-drafts Exclude draft releases --exclude-pre-releases Exclude pre-releases -L, --limit int Maximum number of items to fetch (default 30) Error: Could not find any releases. This version will be deployed, but not marked as 'latest'. ... error: error writing commit: fatal: Can't create a branch from itself: docs fast-import: dumping crash report to .git/fast_import_crash_11185 make: *** [docs] Error 1

See #869 (comment) for an example that does not use gh.

I updated the script not to use gh per your other comment.

Regarding the errors:

could not find any release

if this is from your fork, it might not have any releases to grab the latest version from, so it won't mark as latest, but it should still continue to generate it as a release

Can't create a branch from itself: docs

So how mike works is that it puts the versioned directories on a docs branch.

But if the branch does not exist, then it will get this error, which if it's your fork, I'm assuming it doesn't have that branch yet.

I put the steps as a prereq in the PR description, as we'd also have to make this branch in the GIE repo: Add versioning to the docs #869 (comment)

similar to https://github.com/kubernetes-sigs/gateway-api/blob/main/hack/mkdocs/generate.sh also to address peer review feedback about dependency install

was tagging as latest if equal or greater than the release marked latest

duplicate from the entrypoint.sh for the docker image

artberger added 23 commits March 3, 2025 14:58

contribution guide updates

1fd0314

image path relative

dbc3b22

the previous /images/ does not work when the content is versioned

mike versioning

7d8ecde

update doc guide

ed87f3f

period

c49b44d

ensure version switcher remains visible

d313861

otherwise, it did not appear because its in the same header_topic element that was getting hidden

fix formattin

196be29

fix location of main.html in overrides

385f50d

Add make virtual environment command

5769e8f

Based on Gateway API https://github.com/kubernetes-sigs/gateway-api/blob/main/Makefile#L162-L172

add link to localhost

f290f5f

add warning

a13e744

Add versioning to local docker image

7e68026

Merge branch 'main' into adb-versioning

fa32888

revert img update

2f26413

make docs target and make-docs.sh script

fa00351

change from gh-pages to docs branch

1405ff9

Update the release process to include make docs

ff3d933

Add versioning info to contributors guide

c88ecf6

update mike serve for docs branch

fd463f1

Update docs guide

dea46d3

Update Netlify settings and remove old make commands

b359ab2

update regex

bba0257

in case release doesn't have v or has extra info after patch

Update publish process

4a6789a

k8s-ci-robot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label May 23, 2025

k8s-ci-robot requested review from danehans and nirrozenbaum May 23, 2025 15:14

k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label May 23, 2025

k8s-ci-robot added the needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. label May 23, 2025

k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label May 23, 2025

artberger added 3 commits May 27, 2025 11:54

fix branch name in description

0033ef3

Set default version to latest

8e9f3d8

So that the banner works to send users from main or old branches to latest

Update deploy step

992b3a7

So that latest is copied and actually available as a url /latest/ and not just the version, like /0.3/

danehans requested a review from robscott May 27, 2025 17:08

update release

29652fa

artberger commented May 27, 2025

View reviewed changes

update netlify.toml

f20984f

to match settings in Netlify

danehans reviewed Jun 2, 2025

View reviewed changes

artberger added 8 commits June 4, 2025 09:35

change crd-ref-docs to be like Gateway API

dccb488

similar to https://github.com/kubernetes-sigs/gateway-api/blob/main/hack/mkdocs/generate.sh also to address peer review feedback about dependency install

rm crd-ref-docs from makefile

82cb314

rm api-ref-docs target and fix path

5f26e56

fix latest tagging

facd790

was tagging as latest if equal or greater than the release marked latest

fix latest

d16365c

update mike server commands

deb8330

duplicate from the entrypoint.sh for the docker image

change from gh to git

a892698

add line

77612a0

		# Use mike serve for versioning support
		mike serve -a 0.0.0.0:3000 --branch docs

Add versioning to the docs #869

Are you sure you want to change the base?

Add versioning to the docs #869

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Summary of changes

Order of steps to update the docs publishing process

Netlify considerations

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