How to run a GitLab container registry (2024)

[djxx]

I can see some old posts from 2022 that have some complicated steps to install the Docker Registry app and link GitLab to it. Is it possible to use the built-in registry by making the configuration edits here?

https://docs.gitlab.com/ee/administration/packages/container_registry.html?tab=Self-compiled+(source)

It seems it would just need another open port, but as I understand Cloudron apps have to pre-define the ports they're allowed to listen on, so this option would need to be built into the Cloudron app definition and I don't see it anywhere.

I'd much rather use this "set and forget" container registry approach, since it makes it easier to connect to other parts of GitLab.

[djxx]

I couldn't find a good way to do it just with GitLab so I went ahead and installed another app. I'd still like to hear if this is possible with GitLab alone.

Overall, it took about 10 minutes to set it up this way, which is better than not having repository functionality. One note is that the way the docker registry app identifies itself, the port is VERY important in how you login. Previously I was able to auth with my GitLab hosted docker repository with a URL like:
docker login registry.mydomain.com

but this didn't work at all with the Cloudron Docker Registry hosted at the same domain. I had to change to:
docker login registry.mydomain.com:443

yes - the port is apparently important!