This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/elemental/teal53/15.4/rancher/elemental-live-grub2-efi-image/5.3:0.0.2
  docker pull registry.opensuse.org/home/dcassany/elemental/teal53/15.4/rancher/elemental-live-grub2-efi-image/5.3:0.0.2-1.13
  docker pull registry.opensuse.org/home/dcassany/elemental/teal53/15.4/rancher/elemental-live-grub2-efi-image/5.3:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.