Ahmon and I have been working on some of the basic questions for actually doing this migration over the last few days.
This is a placeholder ticket,ticket for tasks specific to migrating MediaWiki core, extensions, skins, and the projects under `mediawiki/services` to GitLab for code review and CI. we'll fiIt's not meant to snowball it out further in coming daysnto every dependency of the general GitLab migration.
Some working notes here: https://etherpad.wikimedia.org/p/gitlab-migrating
Desired permission model - we could use feedback here:
* https://www.mediawiki.org/wiki/GitLab/Policy#MediaWiki_permission_model
User import - we can currently:
* Import users and group membership to GitLab from LDAP.
* Do a one-time sync from existing Gerrit groups to GitLab project membership.
Related tasks:
* {T330345}
* {T327332}
* {T319211}