This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/kubic/coredns:latest
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/kubic/coredns:v1.11.1
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/kubic/coredns:v1.11.1-6.17

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.