This container can be pulled via:
  docker pull registry.opensuse.org/devel/kubic/containers/container_powerpc/kubic/kube-apiserver:latest
  docker pull registry.opensuse.org/devel/kubic/containers/container_powerpc/kubic/kube-apiserver:v1.17.2
  docker pull registry.opensuse.org/devel/kubic/containers/container_powerpc/kubic/kube-apiserver:v1.17.2-6.628

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.