This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/kubic/kube-scheduler:v1.28.11
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/kubic/kube-scheduler:v1.28.11-2.29

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.