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341 lines
13 KiB
PHP
341 lines
13 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Service_Amazon
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* @subpackage Ec2
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Ebs.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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require_once 'Zend/Service/Amazon/Ec2/Abstract.php';
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/**
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* An Amazon EC2 interface to create, describe, attach, detach and delete Elastic Block
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* Storage Volumes and Snaphsots.
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*
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* @category Zend
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* @package Zend_Service_Amazon
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* @subpackage Ec2
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Service_Amazon_Ec2_Ebs extends Zend_Service_Amazon_Ec2_Abstract
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{
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/**
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* Creates a new Amazon EBS volume that you can mount from any Amazon EC2 instance.
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*
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* You must specify an availability zone when creating a volume. The volume and
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* any instance to which it attaches must be in the same availability zone.
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*
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* @param string $size The size of the volume, in GiB.
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* @param string $availabilityZone The availability zone in which to create the new volume.
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* @return array
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*/
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public function createNewVolume($size, $availabilityZone)
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{
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$params = array();
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$params['Action'] = 'CreateVolume';
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$params['AvailabilityZone'] = $availabilityZone;
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$params['Size'] = $size;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['volumeId'] = $xpath->evaluate('string(//ec2:volumeId/text())');
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$return['size'] = $xpath->evaluate('string(//ec2:size/text())');
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$return['status'] = $xpath->evaluate('string(//ec2:status/text())');
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$return['createTime'] = $xpath->evaluate('string(//ec2:createTime/text())');
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$return['availabilityZone'] = $xpath->evaluate('string(//ec2:availabilityZone/text())');
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return $return;
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}
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/**
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* Creates a new Amazon EBS volume that you can mount from any Amazon EC2 instance.
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*
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* You must specify an availability zone when creating a volume. The volume and
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* any instance to which it attaches must be in the same availability zone.
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*
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* @param string $snapshotId The snapshot from which to create the new volume.
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* @param string $availabilityZone The availability zone in which to create the new volume.
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* @return array
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*/
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public function createVolumeFromSnapshot($snapshotId, $availabilityZone)
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{
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$params = array();
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$params['Action'] = 'CreateVolume';
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$params['AvailabilityZone'] = $availabilityZone;
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$params['SnapshotId'] = $snapshotId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['volumeId'] = $xpath->evaluate('string(//ec2:volumeId/text())');
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$return['size'] = $xpath->evaluate('string(//ec2:size/text())');
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$return['status'] = $xpath->evaluate('string(//ec2:status/text())');
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$return['createTime'] = $xpath->evaluate('string(//ec2:createTime/text())');
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$return['availabilityZone'] = $xpath->evaluate('string(//ec2:availabilityZone/text())');
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$return['snapshotId'] = $xpath->evaluate('string(//ec2:snapshotId/text())');
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return $return;
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}
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/**
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* Lists one or more Amazon EBS volumes that you own, If you do not
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* specify any volumes, Amazon EBS returns all volumes that you own.
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*
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* @param string|array $volumeId The ID or array of ID's of the volume(s) to list
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* @return array
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*/
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public function describeVolume($volumeId = null)
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{
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$params = array();
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$params['Action'] = 'DescribeVolumes';
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if(is_array($volumeId) && !empty($volumeId)) {
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foreach($volumeId as $k=>$name) {
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$params['VolumeId.' . ($k+1)] = $name;
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}
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} elseif($volumeId) {
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$params['VolumeId.1'] = $volumeId;
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$nodes = $xpath->query('//ec2:volumeSet/ec2:item', $response->getDocument());
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$return = array();
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foreach ($nodes as $node) {
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$item = array();
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$item['volumeId'] = $xpath->evaluate('string(ec2:volumeId/text())', $node);
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$item['size'] = $xpath->evaluate('string(ec2:size/text())', $node);
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$item['status'] = $xpath->evaluate('string(ec2:status/text())', $node);
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$item['createTime'] = $xpath->evaluate('string(ec2:createTime/text())', $node);
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$attachmentSet = $xpath->query('ec2:attachmentSet/ec2:item', $node);
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if($attachmentSet->length == 1) {
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$_as = $attachmentSet->item(0);
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$as = array();
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$as['volumeId'] = $xpath->evaluate('string(ec2:volumeId/text())', $_as);
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$as['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $_as);
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$as['device'] = $xpath->evaluate('string(ec2:device/text())', $_as);
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$as['status'] = $xpath->evaluate('string(ec2:status/text())', $_as);
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$as['attachTime'] = $xpath->evaluate('string(ec2:attachTime/text())', $_as);
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$item['attachmentSet'] = $as;
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}
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$return[] = $item;
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unset($item, $node);
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}
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return $return;
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}
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public function describeAttachedVolumes($instanceId)
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{
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$volumes = $this->describeVolume();
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$return = array();
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foreach($volumes as $vol) {
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if(isset($vol['attachmentSet']) && $vol['attachmentSet']['instanceId'] == $instanceId) {
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$return[] = $vol;
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}
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}
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return $return;
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}
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/**
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* Attaches an Amazon EBS volume to an instance
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*
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* @param string $volumeId The ID of the Amazon EBS volume
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* @param string $instanceId The ID of the instance to which the volume attaches
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* @param string $device Specifies how the device is exposed to the instance (e.g., /dev/sdh).
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* @return array
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*/
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public function attachVolume($volumeId, $instanceId, $device)
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{
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$params = array();
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$params['Action'] = 'AttachVolume';
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$params['VolumeId'] = $volumeId;
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$params['InstanceId'] = $instanceId;
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$params['Device'] = $device;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['volumeId'] = $xpath->evaluate('string(//ec2:volumeId/text())');
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$return['instanceId'] = $xpath->evaluate('string(//ec2:instanceId/text())');
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$return['device'] = $xpath->evaluate('string(//ec2:device/text())');
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$return['status'] = $xpath->evaluate('string(//ec2:status/text())');
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$return['attachTime'] = $xpath->evaluate('string(//ec2:attachTime/text())');
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return $return;
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}
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/**
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* Detaches an Amazon EBS volume from an instance
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*
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* @param string $volumeId The ID of the Amazon EBS volume
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* @param string $instanceId The ID of the instance from which the volume will detach
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* @param string $device The device name
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* @param boolean $force Forces detachment if the previous detachment attempt did not occur cleanly
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* (logging into an instance, unmounting the volume, and detaching normally).
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* This option can lead to data loss or a corrupted file system. Use this option
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* only as a last resort to detach an instance from a failed instance. The
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* instance will not have an opportunity to flush file system caches nor
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* file system meta data.
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* @return array
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*/
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public function detachVolume($volumeId, $instanceId = null, $device = null, $force = false)
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{
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$params = array();
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$params['Action'] = 'DetachVolume';
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$params['VolumeId'] = $volumeId;
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$params['InstanceId'] = strval($instanceId);
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$params['Device'] = strval($device);
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$params['Force'] = strval($force);
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['volumeId'] = $xpath->evaluate('string(//ec2:volumeId/text())');
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$return['instanceId'] = $xpath->evaluate('string(//ec2:instanceId/text())');
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$return['device'] = $xpath->evaluate('string(//ec2:device/text())');
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$return['status'] = $xpath->evaluate('string(//ec2:status/text())');
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$return['attachTime'] = $xpath->evaluate('string(//ec2:attachTime/text())');
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return $return;
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}
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/**
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* Deletes an Amazon EBS volume
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*
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* @param string $volumeId The ID of the volume to delete
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* @return boolean
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*/
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public function deleteVolume($volumeId)
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{
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$params = array();
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$params['Action'] = 'DeleteVolume';
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$params['volumeId'] = $volumeId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = $xpath->evaluate('string(//ec2:return/text())');
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return ($return === "true");
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}
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/**
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* Creates a snapshot of an Amazon EBS volume and stores it in Amazon S3. You can use snapshots for backups,
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* to launch instances from identical snapshots, and to save data before shutting down an instance
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*
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* @param string $volumeId The ID of the Amazon EBS volume to snapshot
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* @return array
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*/
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public function createSnapshot($volumeId)
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{
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$params = array();
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$params['Action'] = 'CreateSnapshot';
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$params['VolumeId'] = $volumeId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['snapshotId'] = $xpath->evaluate('string(//ec2:snapshotId/text())');
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$return['volumeId'] = $xpath->evaluate('string(//ec2:volumeId/text())');
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$return['status'] = $xpath->evaluate('string(//ec2:status/text())');
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$return['startTime'] = $xpath->evaluate('string(//ec2:startTime/text())');
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$return['progress'] = $xpath->evaluate('string(//ec2:progress/text())');
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return $return;
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}
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/**
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* Describes the status of Amazon EBS snapshots
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*
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* @param string|array $snapshotId The ID or arry of ID's of the Amazon EBS snapshot
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* @return array
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*/
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public function describeSnapshot($snapshotId = null)
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{
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$params = array();
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$params['Action'] = 'DescribeSnapshots';
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if(is_array($snapshotId) && !empty($snapshotId)) {
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foreach($snapshotId as $k=>$name) {
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$params['SnapshotId.' . ($k+1)] = $name;
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}
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} elseif($snapshotId) {
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$params['SnapshotId.1'] = $snapshotId;
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$nodes = $xpath->query('//ec2:snapshotSet/ec2:item', $response->getDocument());
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$return = array();
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foreach ($nodes as $node) {
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$item = array();
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$item['snapshotId'] = $xpath->evaluate('string(ec2:snapshotId/text())', $node);
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$item['volumeId'] = $xpath->evaluate('string(ec2:volumeId/text())', $node);
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$item['status'] = $xpath->evaluate('string(ec2:status/text())', $node);
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$item['startTime'] = $xpath->evaluate('string(ec2:startTime/text())', $node);
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$item['progress'] = $xpath->evaluate('string(ec2:progress/text())', $node);
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$return[] = $item;
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unset($item, $node);
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}
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return $return;
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}
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/**
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* Deletes a snapshot of an Amazon EBS volume that is stored in Amazon S3
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*
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* @param string $snapshotId The ID of the Amazon EBS snapshot to delete
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* @return boolean
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*/
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public function deleteSnapshot($snapshotId)
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{
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$params = array();
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$params['Action'] = 'DeleteSnapshot';
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$params['SnapshotId'] = $snapshotId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = $xpath->evaluate('string(//ec2:return/text())');
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return ($return === "true");
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}
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}
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