Munin contributed plugins

#!/usr/bin/php

<?php

/**

 * Moodle Modules Total

 * Munin plugin to count total modules instances

 *

 * It's required to define a container entry for this plugin in your

 * /etc/munin/plugin-conf.d/moodle.conf

 *

 * @example Example entry for configuration:

 * [moodle*]

 * env.type mysql

 * env.db moodle

 * env.user mysql_user

 * env.pass mysql_pass

 * env.host localhost

 * env.port 3306

 * env.table_prefix mdl_

 *

 * @author Arnaud Trouvé <ak4t0sh@free.fr>

 * @version 1.0 2014

 *

 */

$dbh = null;

$db = getenv('db');

$type = getenv('type');

$host = getenv('host');

$user = getenv('user');

$pass = getenv('pass');

$table_prefix = getenv('table_prefix');

$port = getenv('port');

if (!$port)

    $port = 3306;

try {

    $dsn = $type . ':host=' . $host . ';port=' . $port . ';dbname=' . $db;

    $dbh = new PDO($dsn, $user, $pass);

} catch (Exception $e) {

    echo "Connection failed\n";

    exit(1);

}

//All users

$data = array();

if (($stmt = $dbh->query("SELECT m.name as modulename, count(cm.id) as moduleinstance FROM {$table_prefix}modules m, {$table_prefix}course_modules cm WHERE cm.module=m.id GROUP BY cm.module ORDER BY m.name ASC")) != false) {

    $data = $stmt->fetchAll(PDO::FETCH_OBJ);

}

if (count($argv) === 2 && $argv[1] === 'config') {

    echo "graph_title Moodle Modules\n";

    echo "graph_args --base 1000 --lower-limit 0\n";

    echo "graph_vlabel modules\n";

    echo "graph_category Moodle\n";

    echo "graph_scale no\n";

    echo "graph_info Displays the sum of module, as well as module instance number by type, in your Moodle site\n";

    echo "graph_total total\n";

    $draw = "AREA";

    foreach($data as $entry) {

        echo "modules_".$entry->modulename.".label ".$entry->modulename."\n";

        echo "modules_".$entry->modulename.".min 0\n";

        echo "modules_".$entry->modulename.".draw $draw\n";

        $draw = "STACK";

    }

    exit(0);

}

foreach($data as $entry) {

    echo "modules_".$entry->modulename.".label ".$entry->modulename."\n";

    echo "modules_".$entry->modulename.".value ".$entry->moduleinstance."\n";

}