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Release Process

istgt follows a monthly release cadence. The scope of the release is determined by contributor availability. The scope is published in the Release Tracker Projects.

Release Candidate Verification Checklist

Every release has release candidate builds that are created starting from the third week into the release. These release candidate builds help to freeze the scope and maintain the quality of the release. The release candidate builds will go through:

  • Platform Verification
  • Regression and Feature Verification Automated tests.
  • Exploratory testing by QA engineers
  • Strict security scanners on the container images
  • Upgrade from previous releases
  • Beta testing by users on issues that they are interested in.
  • Dogfooding on OpenEBS workload and e2e infrastructure clusters.

If any issues are found during the above stages, they are fixed and a new release candidate builds are generated.

Once all the above tests are completed, a main release tagged image is published.

Release Tagging

istgt is released as container image with versioned tag.

Before creating a release, repo owner needs to create a separate branch from the active branch, which is develop. Name of the branch should follow the naming convention of v.1.9.x, if release is for v1.9.0.

Once the release branch is created, changelog from changelogs/unreleased needs to be moved to release specific folder changelogs/v1.9.x, if release branch is v1.10.x then folder will be changelogs/v1.10.x.

The format of the release tag is either "Release-Name-RC1" or "Release-Name" depending on whether the tag is a release candidate or a release. (Example: v1.9.0-RC1 is a GitHub release tag for istgt release build. v1.9.0 is the release tag that is created after the release criteria are satisfied by the istgt builds.)

Once the release is triggered, Travis build process has to be monitored. Once Travis build is passed images are pushed to docker hub and quay.io. Images can be verified by going through docker hub and quay.io. Also the images shouldn't have any high level vulnerabilities.

Images are published at following location: https://quay.io/repository/openebs/cstor-istgt?tab=tags https://hub.docker.com/r/openebs/cstor-istgt/tags

Once a release is created, update the release description with the change log mentioned in changelog/v1.9.x. Once the change logs are updated in release, repo owner needs to create a PR to develop with the following details:

  1. update the changelog from changelog/v1.9.x to istgt/CHANGELOG.md
  2. If release is not a RC tag then PR should include the changes to remove changelog/v1.9.x folder.
  3. If release is a RC tag then PR should include the changes to remove the changelog from changelog/v1.9.x which are already mentioned in istgt/CHANGELOG.md as part of step number 1.