This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/arm/totest/containers/kubic/coredns:1.6.5
  docker pull registry.opensuse.org/opensuse/factory/arm/totest/containers/kubic/coredns:1.6.5-1.1029
  docker pull registry.opensuse.org/opensuse/factory/arm/totest/containers/kubic/coredns:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.