This container can be pulled via:
  docker pull registry.opensuse.org/home/steven.hardy/branches/isv/metal3/packages/containerfile/suse/cluster-api-operator-controller:0.9.1
  docker pull registry.opensuse.org/home/steven.hardy/branches/isv/metal3/packages/containerfile/suse/cluster-api-operator-controller:0.9.1-bp155.3.56
  docker pull registry.opensuse.org/home/steven.hardy/branches/isv/metal3/packages/containerfile/suse/cluster-api-operator-controller:latest
  docker pull registry.opensuse.org/home/steven.hardy/branches/isv/metal3/packages/containerfile/suse/cluster-api-operator-controller:v0.9.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.