This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/etcd:3.4.3
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/etcd:3.4.3-0
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/etcd:3.4.3-0.3.371
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/etcd:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.