This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/ceph/grafana:11.5.1
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/ceph/grafana:11.5.1.6.1158
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/ceph/grafana:latest
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/ceph/grafana:tumbleweed

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.