This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/samba-ad-server:4.22
  docker pull registry.opensuse.org/opensuse/samba-ad-server:4.22.0
  docker pull registry.opensuse.org/opensuse/samba-ad-server:4.22.0-3.2736
  docker pull registry.opensuse.org/opensuse/samba-ad-server:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.