This container can be pulled via:
  docker pull registry.opensuse.org/home/twotaps/branches/virtualization/containers/images/opensuse-leap-15.1/containers/opensuse/leap:15.1
  docker pull registry.opensuse.org/home/twotaps/branches/virtualization/containers/images/opensuse-leap-15.1/containers/opensuse/leap:15.1.2.101