Gitlab in docker(-compose) won't let me clone via ssh

I’m trying to deploy a gitlab instance inside a docker container. I’m running gitlab behind traefik as my reverse proxy.
I defined the port (3000:22) in my docker-compose.yaml.
Sorry for not posting the config - I’m not near a computer atm.
For some reason I’m unable to clone repositories from a remote machine but it is working if I’m trying to clone locally on my server.
The ssh port is not routed through traefik and the port is not blocked by my firewall.
Any ideas what could cause that problem?
I’ll post my config when I’m home today.

Thanks for your help in advance :grin:

The issue was CloudFlare. Basically I tried to pull the repo from their servers. The fix was telling gitlab to publish the IP.