ArubaOS - Addtional support to poll Active VPN sessions (#16137)

* This commit changes two files in the LibreNMS repo, to enable polling of the ArubaOS OID that reports active vpn sessions.

The first file is the arubaos.yaml discovery file to enable polling of the following OID WLSX-USER-MIB::wlsxNumOfUsersVPN(OID: .1.3.6.1.4.1.14823.2.2.1.4.1.4.2.0).

The second file  arubacontroller_vpnsessions.inc.php is a graphing file to allow the use of this sensor on a dashboard.

* Update arubacontroller_vpnsessions.inc.php

Added newline at end of file to follow style guide

* Update arubaos.yaml

Added newline at end of file to follow style guide

* keep {{ $index }} in the num_oid and index

* Update arubacontroller_vpnsessions.inc.php

fix to match the rrdfilename change

* Added test data

* Added test data

* Removed extra file

* added variant vmc json test data

* revert arubaos.json

---------

Co-authored-by: PipoCanaja <38363551+PipoCanaja@users.noreply.github.com>

includes/definitions/discovery/arubaos.yaml

@@ -18,3 +18,11 @@ modules:
                 value: WLSX-SYSTEMEXT-MIB::sysExtProcessorLoad
                 num_oid: '.1.3.6.1.4.1.14823.2.2.1.2.1.13.1.3.{{ $index }}'
                 descr: WLSX-SYSTEMEXT-MIB::sysExtProcessorDescr
+    sensors:
+        count:
+            data:
+                -
+                    oid: WLSX-USER-MIB::wlsxNumOfUsersVPN
+                    num_oid: '.1.3.6.1.4.1.14823.2.2.1.4.1.4.2.{{ $index }}'
+                    descr: 'Active VPN sessions'
+                    index: 'vpnsessions{{ $index }}'

includes/html/graphs/device/arubacontroller_vpnsessions.inc.php

@@ -0,0 +1,13 @@
+<?php
+
+require 'includes/html/graphs/common.inc.php';
+
+$rrd_filename = Rrd::name($device['hostname'], 'sensor-count-arubaos-vpnsessions0');
+$ds = 'sensor';
+$colour_area = '9999cc';
+$colour_line = '0000cc';
+$colour_area_max = 'aaaaacc';
+$scale_min = 0;
+$unit_text = 'Active Tunnels';
+
+require 'includes/html/graphs/generic_simplex.inc.php';