This container can be pulled via:
  docker pull registry.opensuse.org/home/cwh/fleet/containerfile/fleet-controller:0.15
  docker pull registry.opensuse.org/home/cwh/fleet/containerfile/fleet-controller:0.15.2
  docker pull registry.opensuse.org/home/cwh/fleet/containerfile/fleet-controller:0.15.2-1.6
  docker pull registry.opensuse.org/home/cwh/fleet/containerfile/fleet-controller:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.