This container can be pulled via:
  docker pull registry.opensuse.org/home/jreidinger/suse_alp_workloads_sle_15sp4_containerfiles/suse/alp/workloads/cockpit-ws:300.1
  docker pull registry.opensuse.org/home/jreidinger/suse_alp_workloads_sle_15sp4_containerfiles/suse/alp/workloads/cockpit-ws:300.1-23.157
  docker pull registry.opensuse.org/home/jreidinger/suse_alp_workloads_sle_15sp4_containerfiles/suse/alp/workloads/cockpit-ws:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.