This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/v2/isv/rancher/elemental/dev/containers/suse/sle-micro-iso/5.5:2.1.0
  docker pull registry.opensuse.org/home/dcassany/v2/isv/rancher/elemental/dev/containers/suse/sle-micro-iso/5.5:2.1.0-25.1
  docker pull registry.opensuse.org/home/dcassany/v2/isv/rancher/elemental/dev/containers/suse/sle-micro-iso/5.5:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.