net-mgmt/telegraf: add haproxy input (#842)

net-mgmt/telegraf/src/opnsense/mvc/app/controllers/OPNsense/Telegraf/forms/input.xml

@@ -99,4 +99,10 @@
         <allownew>true</allownew>
         <help>Set the Hosts to ping in a CSV list.</help>
     </field>
+    <field>
+        <id>input.haproxy</id>
+        <label>HAProxy</label>
+        <type>checkbox</type>
+        <help>Enable the collection of HAProxy statistics.</help>
+    </field>
 </form>

net-mgmt/telegraf/src/opnsense/mvc/app/models/OPNsense/Telegraf/Input.xml

@@ -66,5 +66,9 @@
         <ping_hosts type="CSVListField">
             <Required>N</Required>
         </ping_hosts>
+        <haproxy type="BooleanField">
+            <default>0</default>
+            <Required>N</Required>
+        </haproxy>
     </items>
 </model>

net-mgmt/telegraf/src/opnsense/service/templates/OPNsense/Telegraf/telegraf.conf

@@ -175,4 +175,9 @@
 {%   endif %}
 {% endif %}
 
+{% if helpers.exists('OPNsense.telegraf.input.haproxy') and OPNsense.telegraf.input.haproxy == '1' %}
+[[inputs.haproxy]]
+  servers = ["socket:/var/run/haproxy.socket"]
+{% endif %}
+
 {% endif %}