♻️: automate web hostname block for zones

roles/nsd/tasks/zones.yml

@@ -8,8 +8,13 @@
     group: nsd
     mode: "0o644"
   vars:
-    # This generates 99 different serial per day
     dns_serial: "{{ ansible_date_time.epoch }}"
+    web_hostname_block: |-
+      {% for webserver in groups['webservers'] -%}
+      {% for web_hostname in (hostvars[webserver]['web_hostname'] | select('match', '.+' ~ item.name)) -%}
+      {{ web_hostname }}. IN CNAME {{ webserver }}.
+      {% endfor %}
+      {% endfor %}
 
 - name: Create zone key dir
   ansible.builtin.file: