This post will walk you through the steps to migrate Gitlab from one docker container to another. The steps need you to know how to install a new Gitlab container and how to backup and restore Gitlab container, because the migration is just a restoration of a backup to another container.
Gitlab hosts everything about the code including the docs and the pipeline data, etc. It's crucial to back it up. You can also use restore to migrate the Gitlab to another server. This post will show you how to backup and restore the Gitlab-CE docker version.
Gitlab-CE (Community Edition) is a completely free and powerful web-based Git-repository manager with wiki, issue-tracking and CI/CD pipeline features, using an open-source license, developed by GitLab Inc. There're already many much better docs on the net, I've never worked with Docker and Linux before, so I wrote this post to save my way to install the Gitlab docker version on Ubuntu, the post is more or less for personal purpose.