This container can be pulled via:
  docker pull registry.opensuse.org/home/steven.hardy/isv/suse/edge/factory/test_manifest_images/edge-image-builder:1.1.0
  docker pull registry.opensuse.org/home/steven.hardy/isv/suse/edge/factory/test_manifest_images/edge-image-builder:1.1.0-2.2

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.