Don't change the template name, or it will be the name of the remote file

Signed-off-by: Aurélien Bompard <aurelien@bompard.org>

roles/nagios_server/tasks/main.yml

@@ -498,10 +498,10 @@
   - nagios_config
   notify: Restart nagios
 
-- name: Build out nagios hostgroup templates (iad2)
+- name: Build out nagios hostgroup templates
   ansible.builtin.template: src=nagios/hostgroups/{{item}}.j2 dest=/etc/nagios/hostgroups/{{item}} mode=0644 owner=root group=root
   with_items:
-    - "all.cfg.{{datacenter}}"
+    - all.cfg
     - vpnclients.cfg
     - nomail.cfg
     - checkswap.cfg

roles/nagios_server/templates/nagios/hostgroups/all.cfg.iad2.j2

@@ -7,7 +7,7 @@
 define hostgroup{
        hostgroup_name {{ key }}
        alias          {{ key }}
-{%- for host in groups[key]|sort if hostvars[host].nagios_Can_Connect == true and hostvars[host].datacenter == 'iad2' %}
+{%- for host in groups[key]|sort if hostvars[host].nagios_Can_Connect == true and '.iad2.' in hostvars[host].inventory_hostname %}
 {% if loop.first +%}
        members        {{ host }}{% else %}, {{ host }}{% endif %}
 {% endfor +%}