This container can be pulled via:
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/prometheus-node-exporter:1.7.0
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/prometheus-node-exporter:1.7.0.21.116
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/prometheus-node-exporter:latest
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/prometheus-node-exporter:leap15.3

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.