doc(gitaly): how to export a git repository
What
Create a new runbook on how to create a git repository export and share it with developers so that they can debug any problems they are facing with the repository.
Why
We've got asked multiple times by the Gitaly team to get a git repository export so that they can debug a problem with a git repository. Doing is not documented and is tribal knowledge. In https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/16833 we plan to make this self-serve/automated but we can't automate what we don't have documentation.
Examples:
- https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/16828
- https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/16674
- https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/17469
Reference: https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/17469