This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/opensuse/tumbleweed:20190327
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/opensuse/tumbleweed:20190327.7.35
  docker pull registry.opensuse.org/opensuse/factory/powerpc/totest/containers/opensuse/tumbleweed:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.