General improvements

templates/haproxy_cfg

@@ -126,7 +126,7 @@ backend backend_varnish
 {% if varnish_host == inventory_hostname %}
   server varnish 127.0.0.1:6081 maxconn 1000
 {% else %}
-  server varnish {{ hostvars[varnish_host]['static_ipv4']|default(hostvars[varnish_host]['ansible_default_ipv4']['address']) }}:6081 maxconn 1000
+  server varnish {{ varnish_host_ip|default('') }}:6081 maxconn 1000
 {% endif %}
 {% endif %}