This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/factory/images/edge-image-builder:1.3.0-rc0
  docker pull registry.opensuse.org/isv/suse/edge/factory/images/edge-image-builder:1.3.0-rc0-179.3

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.