Rackspace Clould Server termination

terminate.php

<?php
if ('master' == gethostname()) {
	exit;
}
require_once "rscapi.php";

define("API_USER", "");
define("API_KEY",  "");
define("LOADBALANCER_ID",); 

$rsc = new RscApi(API_USER, API_KEY);

$servers = $rsc->serverList(true);

foreach($servers as $server) {
	if ($server['name'] == gethostname()) {
		break;
	}
}

$privateIp = $server['addresses']['private'][0];

$nodes = $rsc->loadBalancerDetails(LOADBALANCER_ID, true);

foreach ($nodes['nodes'] as $node) {
	if ($node['address'] == $privateIp) {
		break;
	}
}
$rsc->loadBalancerRemoveNode(LOADBALANCER_ID,$node['id']);
exec("/etc/init.d/apache2 graceful-stop");

// Wait for apache to stop.
do {
	sleep(5);
} while(fsockopen('127.0.0.1',80));

	$rsc->serverDelete($server['id']);