feature: Added opengridscheduler job tracker application (#6419)

* opengridscheduler job tracker

* wrong copy of file

* applied laf's review. Thx laf!

* now including the modified files; thx laf for the review!

* Update Applications.md

includes/polling/applications/opengridscheduler.inc.php

@@ -0,0 +1,52 @@
+<?php
+/*
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.  Please see LICENSE.txt at the top level of
+ * the source code distribution for details.
+ *
+ * @package    LibreNMS
+ * @subpackage opengridscheduler
+ * @link       http://librenms.org
+ * @copyright  2017 LibreNMS
+ * @author     SvennD <svennd@svennd.be>
+*/
+
+use LibreNMS\RRD\RrdDefinition;
+
+$name = 'ogs';
+$app_id = $app['app_id'];
+$oid = '.1.3.6.1.4.1.8072.1.3.2.3.1.2.3.111.103.115';
+
+echo ' ' . $name;
+
+// get data through snmp
+$ogs_data = snmp_get($device, $oid, '-Oqv');
+
+// let librenms know that we got good data
+update_application($app, $ogs_data);
+
+// define the rrd
+$rrd_name = array('app', $name, $app_id);
+$rrd_def = RrdDefinition::make()
+    ->addDataset('running_jobs', 'GAUGE', 0)
+    ->addDataset('pending_jobs', 'GAUGE', 0)
+    ->addDataset('suspend_jobs', 'GAUGE', 0)
+    ->addDataset('zombie_jobs', 'GAUGE', 0);
+
+// parse the data from the script
+$data = explode("\n", $ogs_data);
+$fields = array(
+    'running_jobs' => $data[0],
+    'pending_jobs' => $data[1],
+    'suspend_jobs' => $data[2],
+    'zombie_jobs' => $data[3],
+);
+
+// push the data in an array and into the rrd
+$tags = compact('name', 'app_id', 'rrd_name', 'rrd_def');
+data_update($device, 'app', $tags, $fields);
+
+// cleanup
+unset($ogs_data, $rrd_name, $rrd_def, $data, $fields, $tags);