This container can be pulled via:
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:3.4.13
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:3.4.13-0
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:3.4.13-0.17.280
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:3.4.13-1
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:3.4.13-1.17.280
  docker pull registry.opensuse.org/devel/kubic/containers/container_arm/kubic/etcd:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.