It seem that i am facing some issues trying to follow the documentation for pulling images with docker. Based on https://rdo-container-registry.readthedocs.io/en/latest/using.html There is a mention of a "-e unused" argument on docker. docker login -p abcdef_token -e unused -u unused trunk.registry.rdoproject.org $ docker login --help Usage: docker login [OPTIONS] [SERVER] Log in to a Docker registry. If no server is specified, the default is defined by the daemon. Options: -p, --password string Password --password-stdin Take the password from stdin -u, --username string Username I assumed that this argument was removed and I skipped it. docker login -p ABCD -u unused trunk.registry.rdoproject.org WARNING! Using --password via the CLI is insecure. Use --password-stdin. WARNING! Your password will be stored unencrypted in /root/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-s... Login Succeeded root@n0:~ # docker pull trunk.registry.rdoproject.org/rhel8/rhel8-rhui:8.0-126 Error response from daemon: unauthorized: authentication required So right after getting the login successful, I get an authentication required.... How to address this? Thanks Sorin docker --version Docker version 18.09.7, build 2d0083d