This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/3.3/images/3.3/edge-image-builder:1.2.1
  docker pull registry.opensuse.org/isv/suse/edge/3.3/images/3.3/edge-image-builder:1.2.1-12.8

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.