This container can be pulled via:
  docker pull registry.opensuse.org/home/fgiudici/branches/mr/elemental/dev/teal53/15.4/rancher/seedimage-builder/5.3:1.1.5
  docker pull registry.opensuse.org/home/fgiudici/branches/mr/elemental/dev/teal53/15.4/rancher/seedimage-builder/5.3:1.1.5-7.4
  docker pull registry.opensuse.org/home/fgiudici/branches/mr/elemental/dev/teal53/15.4/rancher/seedimage-builder/5.3:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.