This container can be pulled via:
  docker pull registry.opensuse.org/isv/rancher/elemental/staging/containers/suse/sl-micro/6.2/baremetal-os-container:2.3.1
  docker pull registry.opensuse.org/isv/rancher/elemental/staging/containers/suse/sl-micro/6.2/baremetal-os-container:2.3.1-27.22
  docker pull registry.opensuse.org/isv/rancher/elemental/staging/containers/suse/sl-micro/6.2/baremetal-os-container:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.