Do gitlab runners need to be re-registered after a migration if the external url does not change?

Question

I am migrating primary and secondary gitlab nodes to new nodes following backup and restore documentation. Do gitlab runners need to be re-registered after a migration if the external url does not change?

Thanks all!!

Answer 1

No, GitLab runners do not need to be re-registered following a migration / backup/restore.

The runner registration is stored in GitLab's database and is associated with the token the runner receives from the gitlab-runner register command. Those tokens will continue to be valid, so long as they were properly backed up, probably even if the GitLab URL changes.