update..

roles/common/tasks/caching-nameserver.yml

@@ -50,7 +50,7 @@
     mode: '0755'
 
 
-- name: (caching-nameserver.yml) update named.conf.options configuration file
+- name: (caching-nameserver.yml) update named.conf.options configuration file (normal server)
   template:
     src: etc/bind/named.conf.options.j2
     dest: /etc/bind/named.conf.options
@@ -63,6 +63,36 @@
   tags:
     - apt-caching-nameserver
     - caching-nameserver
+  when: 
+    - inventory_hostname not in groups["gateway_server"]
+
+# --------------------
+
+# In case of gateway gateway servers ONLY if bind ption file NOT exists
+#
+- name: Check if file '/etc/bind/named.conf.options' exists
+  stat:
+    path: /etc/bind/named.conf.options
+  register: file_named_conf_options
+
+- name: (caching-nameserver.yml) update named.conf.options configuration file (gateway server)
+  template:
+    src: etc/bind/named.conf.options.gateway.j2
+    dest: /etc/bind/named.conf.options
+    backup: yes
+    owner: root
+    group: bind
+    mode: 0644
+    #validate: visudo -cf %s
+  notify: Reload bind9
+  tags:
+    - apt-caching-nameserver
+    - caching-nameserver
+  when: 
+    - inventory_hostname in groups["gateway_server"]
+    - not file_named_conf_options.stat.exists
+
+# --------------------
 
 
 - name: (caching-nameserver.yml) Add 127.0.0.1 as first nameserver entry to /etc/resolv.conf