fix etc_hosts_template

Author: sjpb

environments/common/inventory/group_vars/all/cloud_init.yml

@@ -1,5 +1,13 @@
 cloud_init_output_path: "{{ lookup('env', 'APPLIANCES_ENVIRONMENT_ROOT') }}/cloud_init"
 
+etc_hosts_template: |
+  127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
+  ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
+
+  {% for hostname in groups['etc_hosts'] | sort -%}
+  {{ hostvars[hostname]['ansible_host'] }} {{ hostname }}
+  {% endfor -%}
+
 cloud_init_userdata_etchosts:
   module: write_files
   group: etc_hosts
@@ -10,12 +18,7 @@ cloud_init_userdata_etchosts:
         permissions: "0644"
         owner: root:root
         content: |
-            127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
-            ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
-
-            {% for hostname in groups['etc_hosts'] | sort -%}
-            {{ hostvars[hostname]['ansible_host'] }} {{ hostname }}
-            {% endfor -%}
+          {{ etc_hosts_template | indent(width=6, first=false) }}
 
 cloud_init_userdata_templates_default: # provides indirection so environments could copy parts of default without having to rewrite the entire thing
   - "{{ cloud_init_userdata_etchosts }}"