This container can be pulled via:
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_containerfiles/suse/alp/workloads/cockpit-ws:320
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_containerfiles/suse/alp/workloads/cockpit-ws:320-6.276
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_containerfiles/suse/alp/workloads/cockpit-ws:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.