This container can be pulled via:
  docker pull registry.opensuse.org/home/adamm/container/opensuse/nsd:4.8.0
  docker pull registry.opensuse.org/home/adamm/container/opensuse/nsd:4.8.0-8.21
  docker pull registry.opensuse.org/home/adamm/container/opensuse/nsd:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.