This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/samba-server:4.20
  docker pull registry.opensuse.org/opensuse/samba-server:4.20.1
  docker pull registry.opensuse.org/opensuse/samba-server:4.20.1-3.1696
  docker pull registry.opensuse.org/opensuse/samba-server:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.