This container can be pulled via:
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/coredns:1.6.7
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/coredns:1.6.7-5.276

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.