$ docker login -u dockerbuildbot -p ******** https://index.docker.io/v1/ WARNING! Using --password via the CLI is insecure. Use --password-stdin. WARNING! Your password will be stored unencrypted in /home/ubuntu/workspace/compose_6336-enable-ssh-support@tmp/f8e7ae8a-d737-4f69-b358-a5698bc2a231/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Login Succeeded