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Release procedure

Prerequisites

  1. Stop merges to master branch except for the PR in the next section.

Creating a new release branch

  1. Create a release branch on the upstream.

    git fetch upstream master
git push upstream upstream/master:refs/heads/vX.Y

  2. Set branch protection rules on vX.Y branch in GitHub repository settings.

Updating the release branch

  1. On the release branch, change the default value of the image tag variable in Makefile. Set only major and minor part of version without the 'v' prefix.

    IMAGE_TAG ?=X.Y

  2. Commit the change.

    git commit -a -m "Pin tags to X.Y"

  3. Update generated code (manifests, examples, chart defaults, ...).

    make update

  4. Commit changes and create a PR with vX.Y as base branch.

    git commit -a -m "Updated generated code"

  5. Once the PR is merged, tag the merge commit as vX.Y.Z-beta.0 using an annotated tag.

    git fetch upstream vX.Y
git tag -a vX.Y.Z-beta.0 upstream/vX.Y -m "vX.Y.Z-beta.0"
git push upstream vX.Y.Z-beta.0

  6. Ask QA to run smoke test on beta before preparing release candidate.

Updating master branch for the next release

  1. Enable building docs from vX.Y branch by adding an entry to docs/source/conf.py.

    BRANCHES = ['master', 'v0.3', 'v1.0', 'v1.1', 'vX.Y']

  2. Set new version as unstable:

    UNSTABLE_VERSIONS = ['master', 'vX.Y']

  3. Send the PR to master branch.

  4. When merged, create an annotated tag vX.Y+1.0-alpha.0 for the next release from the merge commit.

    git fetch upstream master
git tag -a vX.Y+1.0-alpha.0 upstream/master -m 'vX.Y+1.0-alpha.0'
git push upstream vX.Y+1.0-alpha.0

  5. Open master branch for merging.

Publishing a release candidate

  1. For Z=0, the release candidate should be tagged only when all issues in the GitHub milestone are closed and fixed in the release branch.

  2. Tag the HEAD of the release branch using an annotated tag.

    git fetch upstream vX.Y
git tag -a vX.Y.Z-rc.I upstream/vX.Y -m "vX.Y.Z-rc.I"
git push upstream vX.Y.Z-rc.I

    CI will automatically create a new release in GitHub and publish the release notes there.

  3. Announce the new RC with the link to the GitHub release on:

Publishing a final release

  1. Tag the final release from the last RC that was approved by QA team using an annotated tag:

    git tag -a vX.Y.Z tags/vX.Y.Z-rc.I^{} -m 'vX.Y.Z'
git push upstream vX.Y.Z

    CI will automatically create a new release in GitHub and publish the release notes there.

  2. Promote the container image from the latest RC approved by QA team.

    • skopeo

      skopeo copy docker://docker.io/scylladb/scylla-operator:X.Y.Z-rc.I docker://docker.io/scylladb/scylla-operator:X.Y.Z

    • docker

      docker pull docker.io/scylladb/scylla-operator:X.Y.Z-rc.I
docker tag docker.io/scylladb/scylla-operator:X.Y.Z-rc.I docker.io/scylladb/scylla-operator:X.Y.Z
docker push docker.io/scylladb/scylla-operator:X.Y.Z

  3. Publish the Helm charts.

    git checkout vX.Y.Z
gcloud auth login
make helm-publish HELM_CHANNEL=stable HELM_APP_VERSION=X.Y.Z HELM_CHART_VERSION=vX.Y.Z

  4. Ask QA to smoke test vX.Y.Z helm charts.

  5. Mark docs as latest, and remove from unstable versions list in docs/source/conf.py in the master branch:

    smv_latest_version = 'vX.Y'
UNSTABLE_VERSIONS = ['master']

  6. Submit a PR using master as target branch.

  7. (optional) Update the release schedule in docs/source/release.md.

  8. Submit a PR using master as target branch.

  9. Wait for QA to give you the green light.

  10. Announce the new release with the link to the GitHub release on:

Release notes

  1. Release notes are now published by CI for every release and beta+rc prereleases. The release notes contain changes since the last corresponding release in the same category, according to this table

    Current Previous
    v1.2.0-beta.0 v1.1.0
    v1.2.0-beta.1 v1.2.0-beta.0
    v1.2.0-rc.0 v1.1.0
    v1.2.0-rc.1 v1.2.0-rc.0
    v1.1.2 v1.1.1
    v1.2.0 v1.1.0