This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/samba-server:4.19
  docker pull registry.opensuse.org/opensuse/samba-server:4.19.5
  docker pull registry.opensuse.org/opensuse/samba-server:4.19.5-4.266

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.