Question 80825 in Docker Question posted in
The official documentation can be found here.

Is there a way to get tags of a docker image on github container registry (ghcr.io) via curl or gh command?

Is there a way to get tags of a docker image on github container registry via curl or gh command?

curl 
  -H "Accept: application/vnd.github+json" 
  -H "Authorization: Bearer ${GH_TOKEN}"
  -H "X-GitHub-Api-Version: 2022-11-28" 
  https://api.github.com/orgs/${ORG}/packages/container/${CONTAINER_IMG}

I have tried above but it does not give me docker tags for the iamge.

I am expecting to get the docker tags of ghcr.io containers.

Tags:

2

Answers


  1. 0

    If your environment allows installing software, it is easier to use skopeo. It is available by default on GitHub Action’s Linux environment, and in most distros package repos.

    skopeo list-tags --registry-token ${GH_TOKEN} docker://ghcr.io/${ORG}/${CONTAINER_IMG}
    Login or Signup to reply.
  2. 0

    With curl, the commands look like:

    #!/bin/sh

repo="${1:-regclient/regctl}"
token=$(curl -s "https://ghcr.io/token?service=ghcr.io&scope=repository:${repo}:pull" 
             -u "${username}:$(cat $HOME/.docker/ghcr_token)" 
        | jq -r '.token')
curl -H "Authorization: Bearer $token" 
     -s "https://ghcr.io/v2/${repo}/tags/list" | jq .

    Note that you need to provide a login to the token command (in the -u option). The tags/list API is a standard registry API, not specific to GHCR, but auth will have different hosts for their token server, or just use basic auth without a token.

    Tools that simplify registry APIs like this include Google’s crane, RedHat’s skopeo, or my own regclient.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search