Add conditional to fix multiple hosts

roles/etcHosts/defaults/main.yml

 ---
 domain: testdomain.massive.org.au
+create_facts: true

roles/etcHosts/tasks/main.yml

@@ -2,6 +2,7 @@
   template: dest=/tmp/groups src=groups.j2
   run_once: True
   delegate_to: 127.0.0.1
+  when: create_facts
 
 - name: make hosts data
   command: ./scripts/makehosts.py /tmp/groups {{ domain }}