This container can be pulled via:
  docker pull registry.opensuse.org/home/brunoleon/branches/devel/bci/images/bci/base:15.3
  docker pull registry.opensuse.org/home/brunoleon/branches/devel/bci/images/bci/base:15.3.122.4
  docker pull registry.opensuse.org/home/brunoleon/branches/devel/bci/images/bci/base:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.