Why and how to enable this is covered in the docs being changed
here. This requires gitlab-org/gitlab-shell@2e8b670 ("Add support for
SSH certificate authentication", 2018-06-14) which has been merged in
and tagged as 8.0.0, so GITLAB_SHELL_VERSION needs to be bumped.

Merging this closes gitlab-org/gitlab-ce#34572 see
gitlab-org/gitlab-shell!207 for the gitlab-shell MR.

Implementation notes:

 - The APIs being changed here are all internal, and their sole
   consumer is gitlab-shell.

 - Most of the changed code is a MR to gitlab-shell, see the
   gitlab-org/gitlab-shell!207 MR. That change covers why only some of
   the internal methods get a new "username" parameter, and why some
   others only get a "user_id".

While reviewing this branch it was noted that this task was broken.
Given the limited value this task brings, and given the fact that much
of the old behaviour has been moved to be automatically fixed, removing
was a good option.

Suggestion in:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/20806#note_91261001

These tasks are happening through housekeeping right now, by default
ever 10th push. This removes the need for these tasks.

Side note, this removes one of my first contributions to GitLab, as back
than I introduced these tasks through: 54e6c004

Closes https://gitlab.com/gitlab-org/gitaly/issues/768

Closes #49733

The Unicorn master resets any signal handlers and prevents rbtrace
from working properly as a result. Move the `require 'rbtrace'` call
to the Unicorn `after_fork` block and keep the initializer only for Sidekiq.

This can be done trough the API for the current user, or on the
profile page.

The link to "GitLab Cycle Analytics" pointed to
/user/project/cycle_analytics.md and not /help/user/project/cycle_analytics.md.
This is caused by an issue with the markdown renderer. This temporary fix
corrects the link by inserting a line break.

These checks were a no op on Cloud native environments, and the checks
were migrated as part of:
https://gitlab.com/gitlab-org/gitaly/merge_requests/767

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/49725

The previous implementation would hit the database each time
and provide a dummy response. If the database goes down, this
means all application workers would be taken out of service.
Simplify this check by using a Rails middleware that intercepts
this endpoint and returns a 200 response.

This reverts merge request !20679

🙈 jacopo beschi 🙉 authored 6 years ago and Robert Speicher committed 6 years ago

Resolve "API endpoint that returns all members, including the inherited membership through ancestor group"

This is mainly the setup of mutations for GraphQL. Including
authorization and basic return type-structure.

This will be enabled if ENABLE_RBTRACE environment variable is defined.
This will allow us to debug all sorts of issues in production:

https://github.com/tmm1/rbtrace