This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/virt-synchronization-controller:1.9
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/virt-synchronization-controller:1.9.1
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/virt-synchronization-controller:1.9.1-7.91
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/virt-synchronization-controller:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.