This container can be pulled via:
  docker pull registry.opensuse.org/devel/kubic/containers/container/kubic/coredns:latest
  docker pull registry.opensuse.org/devel/kubic/containers/container/kubic/coredns:v1.14.6
  docker pull registry.opensuse.org/devel/kubic/containers/container/kubic/coredns:v1.14.6-22.442

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.