nsd/templates/primary_zone_config.j2

# Primary zone definition for {{ item.zone_name }}
zone:
  name: "{{ item.zone_name }}"
  zonefile: "{{ primary_zones_dir }}/{{ item.zone_filename }}"
{% for slave in item.slaves|default([]) %}
  notify: {{ slave.ip }} "{{ slave.tsig_key|default('NOKEY') }}"
  provide-xfr: {{ slave.ip }} "{{ slave.tsig_key|default('NOKEY') }}"
{% endfor %}