This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/samba-server:4.22.2
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/samba-server:4.22.2-3.1949

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.