GitLab has a built-in Docker registry that you can use for projects. With the Omnibus install (or a container based on the official Docker image), enabling the registry is as simple as adding a config line to your gitlab.rb (this assumes you have a SSL key at /etc/gitlab/ssl named with the fully qualified hostname and using .crt for the public key and .key for the private key

registry_external_url ‘https://gitlab.example.com:4567’

Then just tag an image to a project’s repository URL

docker tag ossautomation/cent68php56 gitlab.example.com:4567/lisa/ljtestproject-dockerexecutor

Log in and push the image:

D:\git\ljtestproject-dockerexecutor>docker login gitlab.example.com:4567
Username: lisa
Password:
Login Succeeded

D:\git\ljtestproject-dockerexecutor>docker push gitlab.example.com:4567/lisa/ljtestproject-dockerexecutor
The push refers to repository [gitlab.example.com:4567/lisa/ljtestproject-dockerexecutor]
45c3e2f5d139: Pushing [=> ] 33.31MB/1.619GB