thurt / istio.io

Source for the istio.io site

Site	Status
istio.io
preliminary.istio.io
archive.istio.io

istio.io

This repository contains the source code for the istio.io, preliminary.istio.io and archive.istio.io sites.

Please see the main Istio README file to learn about the overall Istio project and how to get in touch with us. To learn how you can contribute to any of the Istio components, please see the Istio contribution guidelines.

• Editing and building
• Versions and releases
  • How versioning works
  • Publishing content immediately
  • Creating a version
  • Creating a patch release

Editing and building

To learn how to edit and build this repo's content, please refer to Creating and Editing Pages.

Versions and releases

Istio maintains three variations of its public site.

• istio.io is the main site, showing documentation for the current release of the product.

• archive.istio.io contains snapshots of the documentation for previous releases of the product. This is useful for customers still using these older releases.

• preliminary.istio.io contains the actively updated documentation for the next release of the product.

The user can trivially navigate between the different variations of the site using the gear menu in the top right of each page. All three sites are hosted on Netlify.

How versioning works

• Documentation changes are primarily committed to the master branch of istio.io. Changes committed to this branch are automatically reflected on preliminary.istio.io.

• The content of istio.io is taken from the latest release-XXX branch. The specific branch that is used is determined by the istio.io Netlify project's configuration.

• The content of archive.istio.io is taken from the older release-XXX branches. The set of branches that are included on archive.istio.io is determined by the TOBUILD variable in this script.

Publishing content immediately

Checking in updates to the master branch will automatically update preliminary.istio.io, and will only be reflected on istio.io the next time a release is created, which can be several weeks in the future. If you'd like some changes to be immediately reflected on istio.io, you need to check your changes both to the master branch and to the current release branch (named release-XXX such as release-0.7).

Creating a version

Here are the steps necessary to create a new documentation version. Let's assume the current version of Istio is 0.6 and you wish to introduce 0.7 which has been under development.

Creating the release branch

1. Switch to the istio/istio.io repo and make sure everything is up to date.

2. Run scripts/grab_reference_docs.sh in order to get the latest reference docs.

3. Edit the file scripts/gen_archive_site.sh and add the new archive version (in this case release-0.6) to the TOBUILD variable.

4. Commit the previous edits to your local git repo and push your master branch to GitHub.

5. Create a new release branch off of master, named as release-major.minor, which in this case would be release-0.7. There is one such branch for every release.

6. In the release branch you created, edit the file data/args.yml. Set the preliminary field to false and the source_branch_name and doc_branch_name fields to the name of the branch, in this case release-0.7.

7. In the release branch you created, edit the file scripts/grab_reference_docs.sh. Update the branch name for istio.git and api.git to point to the release branch. In this case release-0.7.

8. Commit the previous edit to your local git repo and push your release branch to GitHub.

Updating preliminary.istio.io

1. Switch to the istio/istio.io repo and make sure everything is up to date.

2. In the master branch, edit the file data/versions.yml. Set the preliminary field to the next Istio release ("0.8") and the main field to the current release ("0.7").

3. In the master branch, edit the file data/args.yml. Set the version and full_version fields to have the version of the next Istio release. In this case, you would set the fields to "0.8" and "0.8.0" respectively.

4. Commit the previous edits to your local git repo and push the master branch to GitHub.

5. Wait a while (~2 minutes) and browse preliminary.istio.io to make sure everything looks good.

Updating istio.io

1. Go to the istio.io project on Netlify

2. Change the branch that is built from the previous release's branch to the new release branch, in this case release-0.7

3. Select the option to trigger an immediate rebuild and redeployment.

4. Once deployment is done, browse istio.io and make sure everything looks good.

Updating archive.istio.io

1. Go to the Google Custom Search Engine and do the following:

   • Download the archive.istio.io CSE context file from the Advanced tab.

   • Add a new FacetItem at the top of the file containing the previous release's version number. In this case, this would be "V0.6".

   • Upload the updated CSE context file to the site.

   • In the Setup section, add a new site that covers the previous release's archive directory. In this case, the site URL would be archive.istio.io/v0.6/*. Set the label of this site to the name of the facet item created above (V0.6 in this case).

2. Switch to the istio/istio.io repo and make sure everything is up to date.

3. In the previous release's branch (in this case release-0.6), edit the file data/args.yml. Set the archive field to true and the archive_date field to the current date.

4. In the previous release's branch (in this case release-0.6), edit the file config.toml. Set the disableAliases field to false.

5. Commit the previous edits to your local git repo and push the previous release's branch to GitHub.

6. Switch to the archive branch.

7. Rebase the archive branch to the current master

8. Commit the previous edits to your local git repo and push the archive branch to GitHub.

9. Wait ~15 minutes, then browse archive.istio.io and make sure everything looks good.

Creating a patch release

Creating a new patch release involves modifying a few files:

1. Create the release note boilerplate for the release by adding a markdown file in content/boilarplates/notes/1.X.Y.md, where 1.X.Y is the name of the release. This is where you describe the changes in the release.

2. Create a release note page in content/about/notes/1.X.Y/index.md, where 1.X.Y is the name of the release.

3. Create an announcement blog post in content/blog/YYYY/announcing-1.X.Y/index.md, where YYYY is the current year and 1.x.Y is the name of the release.

4. Edit the data/args.yml file and change the full_version field to the name of the release.

5. Run scripts/grab_reference_docs.sh to get the latest reference docs.

For the first three files, please look at existing files in the same locations for example content and layout.