RELEASE.md

Release process

Start by making a release issue using the template below. The issue checklist can be followed to release a new version of the Helm chart and help everybody coordinate. Do some copy pasting!

Issue title: Release x.y.z

This issue will be used to coordinate the next release of the Helm chart according to the instructions in RELEASE.md. Below is a checklist for this release.

Look through dependencies

The JupyterHub Helm chart relies on many dependent projects, and when we make a release we should note major updates for these projects as well as the version that is specified in the Helm chart. Below are the more important dependencies. Put a check on those that reach a state good enough for a z2jh release to be cut.

Dependent Python packages

Update JupyterHub's Python dependencies in images/hub/requirements.txt by following the instructions in images/hub/README.md.

Also consider nudging dependent projects in the JupyterHub GitHub organization for a release.

• jupyterhub
• kubespawner
• oauthenticator

Dependent docker images

These images version/tags are set in values.yaml, consider bumping the version of these as well.

• configurable-http-proxy
  • Available image tags
  • values.yaml entry: proxy.chp.image
• traefik/traefik
  • Available image tags
  • values.yaml entry: proxy.traefik.image
• kube-scheduler
  • Available image tags
  • values.yaml entry: scheduling.userScheduler.image
• kubernetes/pause
  • values.yaml entry: prePuller.pause.image

Also the images we build are based on some image specified in the FROM statement, consider if we want to bump those versions as well.

• hub
• image-awaiter
• network-tools
• singleuser-sample

Pre-release iteration

• Update docs/source/changelog.md

  • Generate a list of PRs using executablebooks/github-activity

    github-activity --output github-activity-output.md --since <last tag> jupyterhub/zero-to-jupyterhub-k8s

  • Visit and label all uncategorized PRs appropriately with: maintenance, enhancement, breaking, bug, or documentation.
  • Generate a list of PRs again and add it to the changelog
  • Highlight breaking changes
  • Summarize the release changes

• Tag a x.y.z-beta.1 release

  • Create and push a git tag

    git checkout main
    git reset --hard <upstream>/main
    tbump x.y.z-beta.1

    This will automatically create a GitHub prerelease.

• Announce the x.y.z-beta.1 release

  • Write a discourse post

Final release

• Update docs/source/changelog.md

  • Generate a list of merged PRs and a list of contributors and update the changelog.

    github-activity --output github-activity-output.md --since <last tag> jupyterhub/zero-to-jupyterhub-k8s

  • Link out to the downstream projects within the JupyterHub org to celebrate work done there as well.

• Release

  • Create and push a git tag.

    git checkout main
    git reset --hard <upstream>/main
    tbump x.y.z

    This will automatically create a GitHub release.

  • Set the next prerelease version (don't create a tag).

    tbump --no-tag x.y.z+1-0.dev

• Communicate

  • Update the beta release's discourse post.