adding some drupal monitoring snippets

plugins/drupal/drupal_users_total.php

@@ -0,0 +1,106 @@
+#!/usr/bin/php
+<?php
+/**
+ * Drupal Users Total
+ * Munin plugin to count total users
+ *
+ * It's required to define a container entry for this plugin in your
+ * /etc/munin/plugin-conf.d/munin-node (or a separate and dedicated file).
+ *
+ * @example Example entry for configuration:
+ * [drupal*]
+ * env.db="drupal"
+ * env.user="mysql_user"
+ * env.pass="mysql_pass"
+ * env.host="localhost"
+ * env.port="3306"
+ *
+ * @author Liran Tal <liran.tal@hp.com>
+ * @version 1.0 2013
+ *
+ */
+
+
+/**
+ * Environment variabels are set by munin's configuration
+ * @see /etc/munin/plugin-conf.d/munin-node
+ */
+$db = getenv('db');
+$host = getenv('host');
+$user = getenv('user');
+$pass = getenv('pass');
+$port = getenv('port');
+if (!$port)
+  $port = 3306;
+
+$graph_period = getenv('graph_period');
+
+if(count($argv) == 2 && $argv[1] == 'autoconf') {
+  echo "yes\n";
+  exit(0);
+}
+
+if (count($argv) === 2 && $argv[1] === 'config') {
+  echo "graph_title Drupal Total Users\n";
+  echo "graph_args --base 1000 --lower-limit 0\n";
+  echo "graph_vlabel Total Users Count / ${graph_period}\n";
+  echo "graph_category Drupal\n";
+  echo "graph_scale no\n";
+  echo "graph_info Displays the sum of users, as well as disabled count, in your Drupal site\n";
+
+  echo "users_total.label total users\n";
+  echo "users_blocked.label blocked users\n";
+
+  echo "users_total.min 0\n";
+  echo "users_blocked.min 0\n";
+
+  exit(0);
+}
+
+// Connect to database
+$dbh = new mysqli($host, $user, $pass, $db, $port);
+if (mysqli_connect_errno()) {
+  echo "Connecction failed: ".mysqli_connect_error(). PHP_EOL;
+  exit(1);
+}
+
+// Print out the actual values
+$users_total = (int) get_total_users($dbh);
+$users_blocked = (int) get_blocked_users($dbh);
+echo "users_total.value $users_total\n";
+echo "users_blocked.value $users_blocked\n";
+
+$dbh->close();
+
+
+/**
+ * Get count for all users
+ * @return integer $count total users
+ */
+function get_total_users(&$dbh = NULL) {
+
+  $table_prefix = getenv('table_prefix');
+
+  $sql = "SELECT COUNT(uid) AS count FROM {$table_prefix}users";
+  $result = $dbh->query($sql);
+  $row = $result->fetch_assoc();
+
+  return (int) $row['count'];
+
+}
+
+/**
+ * Get count for all blocked users
+ * @return integer $count all blocked users
+ */
+function get_blocked_users(&$dbh = NULL) {
+
+  $table_prefix = getenv('table_prefix');
+
+  $sql = "SELECT COUNT(uid) AS count FROM {$table_prefix}users WHERE status = 0";
+  $result = $dbh->query($sql);
+  $row = $result->fetch_assoc();
+
+  return (int) $row['count'];
+
+}