This container can be pulled via:
  docker pull registry.opensuse.org/devel/caasp/kubic-container/container/kubic/velum-development:4.0
  docker pull registry.opensuse.org/devel/caasp/kubic-container/container/kubic/velum-development:4.0.0
  docker pull registry.opensuse.org/devel/caasp/kubic-container/container/kubic/velum-development:4.0.0-14.27

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.