We need to be able to tag images, it seems that we can do this using curl to download and upload a given manifest to a different location referenced by the tag we want to create. We need to authenticate in curl for this, do we use a Bearer Token? If so, how can we get one, we need an example? Or Do we simply use --user username:password https://… for every request? Do we use the URL to the repo, or the :port value used for docker login (also podman login)? Any help appreciated. I’d like to be able to tag Docker images remotely using Nexus as a registry. Thanks.
Hi!
I think this article might help you with your action via CURL: https://success.docker.com/article/how-do-i-authenticate-with-the-v2-api
I hunted around for how to do this the “right” way with things like JWTs and Bearer tokens. But turns out it’s super easy to just use the username:password@ version. Example of getting all the tags for an image:
https://username:password@privaterepo.yourdomain.com:5001/v2/image-name/tags/list
username and password come from a normal user you create in the Nexus user manager that has access to the Docker repository.