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Add release trigger (#1501)
* add release trigger Signed-off-by: Alex Goodman <alex.goodman@anchore.com> * deduplicate version and changelog calls + add gh checks Signed-off-by: Alex Goodman <alex.goodman@anchore.com> * add more chronicle verbosity, but not when triggering releases Signed-off-by: Alex Goodman <alex.goodman@anchore.com> * bump chronicle version to get --version-file feature Signed-off-by: Alex Goodman <alex.goodman@anchore.com> * update bootstrap tool workflow to include glow Signed-off-by: Alex Goodman <alex.goodman@anchore.com> * add version prefix check on tags in release quality gate Signed-off-by: Alex Goodman <alex.goodman@anchore.com> --------- Signed-off-by: Alex Goodman <alex.goodman@anchore.com>
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@@ -4,8 +4,7 @@ A good release process has the following qualities:
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1. There is a way to plan what should be in a release
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1. There is a way to see what is actually in a release
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1. Allow for different kinds of releases (major breaking vs backwards compatible
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enhancements vs patch updates)
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1. Allow for different kinds of releases (major breaking vs backwards compatible enhancements vs patch updates)
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1. Specify a repeatable way to build and publish software artifacts
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## Planning a release
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@@ -21,10 +20,7 @@ completed, would allow the release to be considered complete. A Milestone is onl
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Not all releases need to be planned. For instance, patch releases for fixes should be
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released when they are ready and when releasing would not interfere with another current
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release (where some partial or breaking features have already been merged). Beta releases
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and release candidates should not be independently planned from the non-beta release. That
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is, the features for a `v0.1-beta.1` release should be planned under the `v0.1` Milestone,
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not under a separate `v0.1-beta.1` Milestone.
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release (where some partial or breaking features have already been merged).
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Unless necessary, feature releases should be small and frequent, which may obviate the
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need for regular release planning under a Milestone.
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@@ -42,9 +38,9 @@ Changelog line. Furthermore, there should be a place to see all released version
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release date for each release, the semantic version of the release, and the set of changes
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for each release.
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This project auto-generates the Changelog contents for each current release and posts the
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generated contents to the GitHub Release page. Leveraging the GitHub Releases feature
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allows GitHub to manage the Changelog on each release outside of the git repository while
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**This project auto-generates the Changelog contents for each current release and posts the
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generated contents to the GitHub Release page**. Leveraging the GitHub Releases feature
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allows GitHub to manage the Changelog on each release outside of the git source tree while
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still being hosted with the released assets.
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The Changelog is generated from the metadata from in-repository issues and PRs, using
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@@ -60,8 +56,8 @@ The above suggestions imply that we should:
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- The appropriate label is applied to PRs and/or issues to drive specific change type
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sections (deprecated, breaking, security, bug, etc)
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With this approach as we cultivate good organization of PRs and issues we automatically
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get an equally good Changelog.
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**With this approach as we cultivate good organization of PRs and issues we automatically
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get an equally good Changelog.**
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## Major, minor, and patch releases
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@@ -69,8 +65,8 @@ The latest version of the tool is the only supported version, which implies that
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parallel release branches will not be a regular process (if ever). Multiple releases can
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be planned in parallel, however, only one can be actively developed at a time. That is, if
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PRs attached to a release Milestone have been merged into the main branch, that release is
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now the "next" release. This implies that the source of truth for release lies with the
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git log and Changelog, not with the release Milestones (which are purely for planning and
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now the "next" release. **This implies that the source of truth for release lies with the
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git log and Changelog, not with the release Milestones** (which are purely for planning and
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tracking).
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Semantic versioning should be used to indicate breaking changes, new features, and fixes.
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@@ -81,24 +77,28 @@ instead the minor version indicates both new features and breaking changes.
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Ideally releasing should be done often with small increments when possible. Unless a
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breaking change is blocking the release, or no fixes/features have been merged, a good
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target release cadence is between every 2 or 4 weeks.
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target release cadence is between every 1 or 2 weeks.
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This release process itself should be as automated as possible, and have only a few steps:
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This release process itself should be as automated as possible, and has only a few steps:
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1. Tag the main branch with a full semantic-version, prefixed with a `v`. If there is a
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milestone with a partial version, the full version should be used for the git tag (e.g.
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with a Milestone of `v0.1` the tag should be `v0.1.0`). You can determine the changes going
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into a release by running `make changelog-unreleased`. Use this change list to determine the
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release increment. After determining the release increment (major, minor, patch), create the tag.
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Given the above example the command to create the tag would be `git tag v0.1.0`.
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1. **Trigger a new release with `make trigger-release`**. At this point you'll see a preview
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changelog in the terminal. If you're happy with the changelog, press `y` to continue, otherwise
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you can abort and adjust the labels on the PRs and issues to be included in the release and
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re-run the release trigger command.
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1. Push the tag. Given the above example the command to push the tag would be `git push origin v0.1.0`.
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1. A release admin must approve the release on the GitHub Actions release pipeline run page.
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Once approved, the release pipeline will generate all assets and draft a GitHub Release.
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1. Navigate to the GitHub Release draft page to review the final changelog and publish the
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release. Once published, a release-follow-up pipeline will publish derivative artifacts
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(docker image to DockerHub, brew formula to the external homebrew git repo, etc).
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Once approved, the release pipeline will generate all assets and publish a GitHub Release.
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1. If there is a release Milestone, close it.
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## Retracting a release
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If a release is found to be problematic, it can be retracted with the following steps:
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- Deleting the GitHub Release
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- Untag the docker images in the `ghcr.io` and `docker.io` registries
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- Revert the brew formula in [`anchore/homebrew-syft`](https://github.com/anchore/homebrew-syft) to point to the previous release
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**Note**: do not delete release tags from the git repository since there may already be references to the release
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in the go proxy, which will cause confusion when trying to reuse the tag later (the H1 hash will not match and there
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will be a warning when users try to pull the new release).
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