librenms-librenms/includes/polling/unix-agent/munin-plugins.inc.php

<?php

  // Plugins
  if (!empty($agent_data['munin']))
  {
    echo("Munin Plugins:");
    if ($debug) { print_r($agent_data['munin']); }

    // Build array of existing plugins
    $plugins_dbq = dbFetchRows("SELECT * FROM `munin_plugins` WHERE `device_id` = ?", array($device['device_id']));
    foreach ($plugins_dbq as $plugin_db)
    {
      $plugins_db[$plugin_db['mplug_type']]['id'] = $plugin_db['mplug_id'];
    }

    $old_plugins_rrd_dir = $host_rrd . "/plugins";
    $plugins_rrd_dir = $host_rrd . "/munin";
    if (is_dir($old_plugins_rrd_dir) && !is_dir($plugins_rrd_dir)) { rename($old_plugins_dir, $plugins_dir); }
    if (!is_dir($plugins_rrd_dir)) { mkdir($plugins_rrd_dir); echo("Created directory : $plugins_rrd_dir\n"); }
    $plugin = array();
    foreach ($agent_data['munin'] AS $plugin_type => $plugin_data)
    {
      $plugin = array();
#      list($plugin_type, $instance) = explode("_", $plugin_type);

#      if (!empty($instance))
#      {
#        echo("\nPlugin: $plugin_type ($instance)");
#        $plugin_rrd = $plugins_rrd_dir . "/" . $plugin_type."_".$instance;
#        $plugin_uniq = $plugin_type."_".$instance;
#      } else {
        echo("\nPlugin: $plugin_type");
        $plugin_rrd = $plugins_rrd_dir . "/".$plugin_type;
        $plugin_uniq = $plugin_type."_";
#      }

      if ($debug) { echo("\n[$plugin_data]\n"); }

      foreach (explode("\n", $plugin_data) as $line)
      {
        list($key, $value) = explode(" ", $line, 2);
        if (preg_match("/^graph_/", $key))
        {
          list(,$key) = explode("_", $key);
          $plugin['graph'][$key] = $value;
        } else {
          list($metric,$key) = explode(".", $key);
          $plugin['values'][$metric][$key] = $value;
        }
      }

      if (!is_array($plugins_db[$plugin_type]))
      {
        $insert = array('device_id' => $device['device_id'], 'mplug_type' => $plugin_type,
          'mplug_instance' => ($instance == NULL ? array('NULL') : $instance),
          'mplug_category' => ($plugin['graph']['category'] == NULL ? 'general' : strtolower($plugin['graph']['category'])),
          'mplug_title' => ($plugin['graph']['title'] == NULL ? array('NULL') : $plugin['graph']['title']),
          'mplug_vlabel' => ($plugin['graph']['vlabel'] == NULL ? array('NULL') : $plugin['graph']['vlabel']),
          'mplug_args' => ($plugin['graph']['args'] == NULL ? array('NULL') : $plugin['graph']['args']),
          'mplug_info' => ($plugin['graph']['info'] == NULL ? array('NULL') : $plugin['graph']['info']),
        );
        $mplug_id = dbInsert($insert, 'munin_plugins');
      } else {
         $mplug_id = $plugins_db[$plugin_type]['id'];
      }

      if ($mplug_id)
      {

        echo(" ID: $mplug_id");

        $dbq = dbFetchRows("SELECT * FROM `munin_plugins_ds` WHERE `mplug_id` = ?", array($mplug_id));
        foreach ($dbq as $v)
        {
          $vu = $v['mplug_id']."_".$v['ds_name'];
          $ds_list[$vu] = 1;
        }
        unset($dbq); unset($v);

        foreach ($plugin['values'] as $name => $data)
        {
          echo(" $name");
          if (empty($data['type'])) { $data['type'] = "GAUGE"; }
          if (empty($data['graph'])) { $data['graph'] = "yes"; }
          if (empty($data['label'])) { $data['label'] = $name; }
          if (empty($data['draw'])) { $data['draw'] = "LINE1.5"; }

          $cmd  = "--step 300 DS:val:".$data['type'].":600:0:U ";
          $cmd .= $config['rrd_rra'];
          $ds_uniq = $mplug_id."_".$name;
          $filename = $plugin_rrd."_".$name.".rrd";
          if (!is_file($filename))
          {
            rrdtool_create($filename, $cmd);
          }
          rrdtool_update($filename,"N:".$data['value']);

          if (empty($ds_list[$ds_uniq]))
          {
            $insert = array('mplug_id' => $mplug_id, 'ds_name' => $name,
              'ds_type' => $data['type'],  'ds_label' => $data['label'],
              'ds_cdef' => $data['cdef'],  'ds_draw'  => $data['draw'],
              'ds_info' => $data['info'],  'ds_extinfo' => $data['extinfo'],
              'ds_min' => $data['min'],  'ds_max' => $data['max'],
              'ds_graph' => $data['graph'],  'ds_negative' => $data['negative'],
              'ds_warning' => $data['warning'],  'ds_critical' => $data['critical'],
              'ds_colour' => $data['colour'],  'ds_sum' => $data['sum'],
              'ds_stack' => $data['stack'],  'ds_line' => $data['line'],
            );
            $ds_id = dbInsert($insert, 'munin_plugins_ds');
          }

        }
      } else {
        echo("No ID!\n");
      }
    }
  }

?>