system-config/playbooks/service-nameserver.yaml

- hosts: adns:!disabled
  name: "Base: configure adns server"
  roles:
    - iptables
    - master-nameserver

- hosts: "ns1.opendev.org:ns2.opendev.org:!disabled"
  name: "Base: configure authoritative nameservers"
  roles:
    - iptables
    - nameserver