This container can be pulled via:
  docker pull registry.opensuse.org/devel/kubic/containers/containerfile/opensuse/memcached:1.6
  docker pull registry.opensuse.org/devel/kubic/containers/containerfile/opensuse/memcached:1.6.29
  docker pull registry.opensuse.org/devel/kubic/containers/containerfile/opensuse/memcached:1.6.29-5.1755
  docker pull registry.opensuse.org/devel/kubic/containers/containerfile/opensuse/memcached:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.