feature: Added support for sending metrics to OpenTSDB (#7022)

* Create OpenTSDB.md

* Send collected data to OpenTSDB

* Send collected data to OpenTSDB

* Update build.sql

* Send collected data to OpenTSDB

* Delete 200.sql

* Update db_schema.yaml

* Update datastore.inc.php

* Update OpenTSDB.md

* Added OpenTSDB to mkdocs.yaml

doc/Extensions/OpenTSDB.md

@@ -0,0 +1,24 @@
+source: Extensions/OpenTSDB.md
+# Enabling support for OpenTSDB.
+
+This module sends all metrics to OpenTSDB server. You need something like Grafana for graphing.
+
+### Requirements
+ - OpenTSDB
+ - Grafana
+ 
+### What you don't get
+ - Pretty graphs, this is why at present you need Grafana. You need to build your own graphs within Grafana.
+ 
+RRD will continue to function normally so LibreNMS itself should continue to function normally.
+
+You can add the following to `config.php`.
+### Configuration
+```php
+// OpenTSDB default configuration
+$config['opentsdb']['enable'] = true;
+$config['opentsdb']['host'] = '127.0.0.1';  // your OpenTSDB server
+$config['opentsdb']['port'] = 4242;
+```
+
+The same data than the one stored within rrd will be sent to OpenTSDB and recorded. You can then create graphs within Grafana to display the information you need.

includes/datastore.inc.php

@@ -67,5 +67,6 @@ function data_update($device, $measurement, $tags, $fields)
 
     rrdtool_data_update($device, $measurement, $tags, $fields);
     influx_update($device, $measurement, rrd_array_filter($tags), $fields);
+    opentsdb_update($device, $measurement, rrd_array_filter($tags), $fields);
     graphite_update($device, $measurement, $tags, $fields);
 } // data_update

includes/init.php

@@ -56,6 +56,7 @@ require_once $install_dir . '/includes/common.php';
 require_once $install_dir . '/includes/dbFacile.php';
 require_once $install_dir . '/includes/rrdtool.inc.php';
 require_once $install_dir . '/includes/influxdb.inc.php';
+require_once $install_dir . '/includes/opentsdb.inc.php';
 require_once $install_dir . '/includes/graphite.inc.php';
 require_once $install_dir . '/includes/datastore.inc.php';
 require_once $install_dir . '/includes/billing.php';

includes/opentsdb.inc.php

@@ -0,0 +1,60 @@
+<?php
+/*
+ * LibreNMS
+ *
+ * Copyright (c) 2017 Yacine Ben <https://github.com/yac01/librenms.git >
+ *
+ * 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.
+ */
+
+function opentsdb_update($device, $measurement, $tags, $fields)
+{
+
+    global $config, $opentsdb;
+    if ($config['opentsdb']['enable'] == true) {
+        if ($opentsdb != true) {
+            $opentsdb = fsockopen($config['opentsdb']['host'], $config['opentsdb']['port']);
+            d_echo("Connection made to OpenTSDB");
+        } else {
+            d_echo("Connection to OpenTSDB has failed");
+        }
+
+          $flag=$config['opentsdb']['co'];
+          $timestamp = time();
+          $tmp_tags = "hostname=".$device['hostname'];
+
+        foreach ($tags as $k => $v) {
+                 $v = str_replace(array(' ',',','='), '_', $v);
+            if (!empty($v)) {
+                $tmp_tags = $tmp_tags ." ". $k ."=".$v;
+            }
+        }
+
+        if ($measurement == 'port') {
+            foreach ($fields as $k => $v) {
+                     $measurement = $k;
+                if ($flag == true) {
+                     $measurement = $measurement.".".$device['co'];
+                }
+                     $line = sprintf('put net.port.%s %d %f %s', strtolower($measurement), $timestamp, $v, $tmp_tags);
+                     d_echo("Sending to OPenTSDB: $line\n");
+                     fwrite($opentsdb, $line . "\n"); // send $line into OpenTSDB
+            }
+        } else {
+            if ($flag == true) {
+                $measurement = $measurement.'.'.$device['co'];
+            }
+
+            foreach ($fields as $k => $v) {
+                     $tmp_tags_key = $tmp_tags ." ". "key" ."=".$k;
+                     $line = sprintf('put net.%s %d %f %s', strtolower($measurement), $timestamp, $v, $tmp_tags_key);
+                     d_echo("Sending to OPenTSDB: $line\n");
+                     fwrite($opentsdb, $line . "\n"); // send $line into OpenTSDB
+            }
+        }
+    }
+}

includes/polling/ports.inc.php

@@ -747,6 +747,7 @@ foreach ($ports as $port) {
 
         influx_update($device, 'ports', rrd_array_filter($tags), $fields);
         graphite_update($device, 'ports|' . $ifName, $tags, $fields);
+        opentsdb_update($device, 'port', array('ifName' => $this_port['ifName'], 'ifIndex' => getPortRrdName($port_id)), $fields);
 
         // End Update IF-MIB
         // Update PAgP

mkdocs.yml

@@ -59,6 +59,7 @@ pages:
     - Extensions/Memcached.md
     - Extensions/Network-Map.md
     - Extensions/NFSen.md
+    - Extensions/OpenTSDB.md
     - Extensions/Oxidized.md
     - Extensions/PeeringDB.md
     - Extensions/Plugin-System.md