[Feature flag] Rollout of `multiple_oncall_schedules`

Feature

Introduced in: #273797 (closed) to keep this feature hidden until escalation policies are fully implemented.

Owners

  • Team: ~"group::monitor"
  • Most appropriate slack channel to reach out to: #s_monitor
  • Best individual to reach out to: @oregand
  • PM: @crystalpoole

The Rollout Plan

  • Partial Rollout on GitLab.com with beta groups
  • Rollout on GitLab.com for a certain period (How long)
  • Percentage Rollout on GitLab.com
  • Rollout Feature for everyone as soon as it's ready

Beta Groups/Projects:

  • gitlab-org/gitlab project
  • gitlab-org/gitlab-com groups
  • ...

Initial Rollout

Preparation Phase

  • Enable on staging (/chatops run feature set multiple_oncall_schedules true --staging)

  • Test on staging

  • Ensure that documentation has been updated (More info)

  • Announce on the issue an estimated time this will be enabled on GitLab.com

Partial Rollout Phase

  • Enable on GitLab.com for individual groups/projects listed above and verify behaviour (/chatops run feature set --project=gitlab-org/gitlab multiple_oncall_schedules true)

  • Verify behaviour (See Beta Groups) and add details with screenshots as a comment on this issue

  • Make the feature flag enabled by default i.e. Change default_enabled to true

  • Cross post chatops slack command to #support_gitlab-com (more guidance when this is necessary in the dev docs) and in your team channel

Cleanup

This is an important phase, that should be either done in the next Milestone or as soon as possible. For the cleanup phase, please follow our documentation on how to clean up the feature flag.

  • Announce on the issue that the flag has been enabled

  • Remove :feature_name feature flag

    • Remove all references to the feature flag from the codebase
    • Remove the YAML definitions for the feature from the repository
    • Create a Changelog Entry

  • Clean up the feature flag from all environments by running this chatops command in #production channel /chatops run feature delete multiple_oncall_schedules.

Final Step

  • Close this rollout issue for the feature flag after the feature flag is removed from the codebase.

Rollback Steps

  • This feature can be disabled by running the following Chatops command:
/chatops run feature set --project=gitlab-org/gitlab multiple_oncall_schedules false
Edited by Olena Horal-Koretska