Login via GitLab doesn't work behind reverse proxy in GitLab CI
I hope this is the right place to submit the issue
I'm trying to run GitLab & GitLab CI via reverse proxy in my local network. Both services are running on one virtual machine and nginx is configured to use port 80 and 81 for GitLab and GitLab CI. Both services are accessible via external urls (http://gitlab.example.com / http://ci.example.com) but logging in to GitLab CI via GitLab fails returning a 404 The page you're looking for does not exist.
I used external URLs in config file at three places (ci_external_url, external_url and gitlab_ci['gitlab_server']). in reverse proxy i set incoming redirects to IP:80 for GitLab and IP:81 for GitLab CI.
As stated out in https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/nginx.md#setting-the-nginx-listen-port
Thanks for help