This container can be pulled via:
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/templates/images/tumbleweed/containers/transmission:4.0.3
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/templates/images/tumbleweed/containers/transmission:4.0.3.4.103
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/templates/images/tumbleweed/containers/transmission:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.