This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/xorg:21
  docker pull registry.opensuse.org/opensuse/xorg:21.1
  docker pull registry.opensuse.org/opensuse/xorg:21.1-1.14
  docker pull registry.opensuse.org/opensuse/xorg:latest
  docker pull registry.opensuse.org/opensuse/xorg:notaskbar

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.