Puppet Agent Monitoring (#10827)

* puppet agent monitoring

* change position of last run graph

* device overview panel

* updating documentation

* mouseover for Overview Dashboard

* adding blank line for code climate

includes/html/graphs/application/puppet-agent_events.inc.php

@@ -0,0 +1,29 @@
+<?php
+$unitlen       = 10;
+$bigdescrlen   = 9;
+$smalldescrlen = 9;
+$dostack       = 0;
+$printtotal    = 0;
+$unit_text    = 'Events';
+$colours      = 'psychedelic';
+$rrd_list     = array();
+
+$rrd_filename = rrd_name($device['hostname'], array('app', 'puppet-agent', $app['app_id'], 'events'));
+$array        = array(
+    'success',
+    'failure',
+    'total',
+);
+if (rrdtool_check_rrd_exists($rrd_filename)) {
+    foreach ($array as $ds) {
+        $rrd_list[]=array(
+            'filename' => $rrd_filename,
+            'descr' => $ds,
+            'ds' => $ds,
+        );
+    }
+} else {
+    echo "file missing: $file";
+}
+
+require 'includes/html/graphs/generic_multi_line_exact_numbers.inc.php';