[Feature flag] Enable Gitlab-org sitemap

What

Remove the :gitlab_org_sitemap feature flag enabling the generation of the sitemap for the Gitlab-org group.

Owners

gitlab_org_sitemap

• Team: group::editor
• Most appropriate slack channel to reach out to: #g_create_editor
• Best individual to reach out to: @fjsanpedro

Expectations

What are we expecting to happen?

When browsing the url https://gitlab.com/sitemap.xml, the sitemap for the Gitlab-org group will appear. This generation won't take more than 1s.

What might happen if this goes wrong?

The sitemap does not appear? The generation takes longer?

What can we monitor to detect problems with this?

Roll Out Steps

• Enable on staging (/chatops run feature set gitlab_org_sitemap true --staging)
• Test on staging
• Ensure that documentation has been updated
• Enable on GitLab.com for individual groups/projects listed above and verify behaviour (/chatops run feature set --project=gitlab-org/gitlab gitlab_org_sitemap true)
• Coordinate a time to enable the flag with the SRE oncall and release managers
  • In #production by pinging @sre-oncall
  • In #g_delivery by pinging @release-managers
• Announce on the issue an estimated time this will be enabled on GitLab.com
• Enable on GitLab.com by running chatops command in #production (/chatops run feature set gitlab_org_sitemap 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
• Announce on the issue that the flag has been enabled
• Remove feature flag and add changelog entry
• After the flag removal is deployed, clean up the feature flag by running chatops command in #production channel

Rollback Steps

• This feature can be disabled by running the following Chatops command:

/chatops run feature set --project=gitlab-org/gitlab gitlab_org_sitemap false