This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/coredns:1.13.1
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/coredns:1.13.1-6.132

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.