HAProxy supervision

roles/haproxy/templates/haproxy.cfg.j2

@@ -69,19 +69,20 @@ frontend https
 ## {{ server }} configuration
 backend http_{{ server }}
 	mode http
-	server host_{{ server }} {{ server }}:80
+	server host_{{ server.split('.')|join('_') }} {{ server }}:80
 
 backend https_{{ server }}
 	mode tcp
-	server host_{{ server }} {{ server }}:443
+	server host_{{ server.split('.')|join('_') }} {{ server }}:443
 
 {% endfor %}
 
 ## Stats
 listen stats
-	bind *:8080
+	bind localhost:80
 	mode http
 	log global
 	stats enable
-	stats uri /
+	stats show-legends
+	stats uri /haproxy-status
 	stats hide-version

roles/munin-client/tasks/main.yml

@@ -26,13 +26,39 @@
       - restart munin-node
   when: munin_need_reconfigure
 
+## Adding modules for specific functions
 - name: install LWP::UserAgent
   package:
       name: libwww-perl
       state: present
   notify:
       - restart munin-node
-  when: "'webservers' in group_names"
+  when: "'webservers' in group_names or 'loadbalancers' in group_names"
+
+- name: add HAProxy backend module
+  file:
+      src: /usr/share/munin/plugins/haproxy_
+      dest: /etc/munin/plugins/haproxy_current
+      state: link
+  notify:
+      - restart munin-node
+  when: "'loadbalancers' in group_names"
+
+- name: install Cache::Cache
+  package:
+      name: libcache-cache-perl
+      state: present
+  notify:
+      - restart munin-node
+  when: "'mariadbservers' in group_names"
+
+- name: install DBD::Pg
+  package:
+      name: libdbd-pg-perl
+      state: present
+  notify:
+      - restart munin-node
+  when: "'pgsqlservers' in group_names"
 
 - name: reconfigure munin-node
   shell: