How do I know what images are stored in a private Docker registry v2?

You have two options:

  1. Set up a web-based browser – this will require you more work to set up and maintain, but will give you much easier way to browse the repo
  2. Browse manually the repository – requires no setup, you will find what you look for in a minute, but it’s not greatly user friendly

If you go for solution 1, there are a few implementations, that can be even downloaded as docker containers (like docker-registry-web ).

If you go for solution 2 (which is what this post is about), you only need to perform two steps with your browser:

  1. list what are the repositories
    http://<registry_address>/v2/_catalog

    This will give you a JSON list of repositories… just find one of your interest

  2. list the tags for a it
    http://<registry_address>/v2/<repository>/tags/list

(source: Stack overflow – snth’s answer)