GitLab is an OpenSource git hoster platform with a corporate centralized hub. See more on wikipedia
On https://gitlab.com/, we have an organization account created for the OSGeo Foundation, but no repository is under that name
(projects have tipically their own namespace)
A bot account exists and is used for some mirroring tasks.
You can ask User:strk if you want to know more about it
Experimental Self-hosted instance (historical)
An experimental deployment of GitLab has been setup at an external server (vps306914.ovh.net) which was temporarely offered by Vincent Picavet.
It's accessible via https://git.osgeo.org/gitlab which is configured as a reverse proxy on TracSVN to the external server.
The deployment has been configured to authenticate via OSGeo LDAP which required opening it up to the remote server as announced here:
The deployment was made by https://wiki.osgeo.org/wiki/User:Bjornharrtell in August 2016 and the server is provided by https://wiki.osgeo.org/wiki/User:VincentP.