445 lines
18 KiB
PHP
445 lines
18 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 $Id$
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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 that allows yout to run, terminate, reboot and describe Amazon
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* Ec2 Instances.
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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) 22005-2009 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_Instance extends Zend_Service_Amazon_Ec2_Abstract
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{
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/**
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* Constant for Small Instance TYpe
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*/
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const SMALL = 'm1.small';
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/**
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* Constant for Large Instance TYpe
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*/
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const LARGE = 'm1.large';
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/**
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* Constant for X-Large Instance TYpe
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*/
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const XLARGE = 'm1.xlarge';
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/**
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* Constant for High CPU Medium Instance TYpe
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*/
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const HCPU_MEDIUM = 'c1.medium';
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/**
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* Constant for High CPU X-Large Instance TYpe
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*/
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const HCPU_XLARGE = 'c1.xlarge';
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/**
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* Launches a specified number of Instances.
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*
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* If Amazon EC2 cannot launch the minimum number AMIs you request, no
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* instances launch. If there is insufficient capacity to launch the
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* maximum number of AMIs you request, Amazon EC2 launches as many
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* as possible to satisfy the requested maximum values.
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*
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* Every instance is launched in a security group. If you do not specify
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* a security group at launch, the instances start in your default security group.
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* For more information on creating security groups, see CreateSecurityGroup.
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*
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* An optional instance type can be specified. For information
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* about instance types, see Instance Types.
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*
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* You can provide an optional key pair ID for each image in the launch request
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* (for more information, see CreateKeyPair). All instances that are created
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* from images that use this key pair will have access to the associated public
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* key at boot. You can use this key to provide secure access to an instance of an
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* image on a per-instance basis. Amazon EC2 public images use this feature to
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* provide secure access without passwords.
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*
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* Launching public images without a key pair ID will leave them inaccessible.
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*
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* @param array $options An array that contins the options to start an instance.
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* Required Values:
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* imageId string ID of the AMI with which to launch instances.
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* Optional Values:
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* minCount integer Minimum number of instances to launch.
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* maxCount integer Maximum number of instances to launch.
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* keyName string Name of the key pair with which to launch instances.
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* securityGruop string|array Names of the security groups with which to associate the instances.
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* userData string The user data available to the launched instances. This should not be Base64 encoded.
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* instanceType constant Specifies the instance type.
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* placement string Specifies the availability zone in which to launch the instance(s). By default, Amazon EC2 selects an availability zone for you.
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* kernelId string The ID of the kernel with which to launch the instance.
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* ramdiskId string The ID of the RAM disk with which to launch the instance.
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* blockDeviceVirtualName string Specifies the virtual name to map to the corresponding device name. For example: instancestore0
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* blockDeviceName string Specifies the device to which you are mapping a virtual name. For example: sdb
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* @return array
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*/
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public function run(array $options)
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{
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$_defaultOptions = array(
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'minCount' => 1,
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'maxCount' => 1,
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'instanceType' => Zend_Service_Amazon_Ec2_Instance::SMALL
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);
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// set / override the defualt optoins if they are not passed into the array;
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$options = array_merge($_defaultOptions, $options);
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if(!isset($options['imageId'])) {
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require_once 'Zend/Service/Amazon/Ec2/Exception.php';
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throw new Zend_Service_Amazon_Ec2_Exception('No Image Id Provided');
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}
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$params = array();
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$params['Action'] = 'RunInstances';
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$params['ImageId'] = $options['imageId'];
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$params['MinCount'] = $options['minCount'];
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$params['MaxCount'] = $options['maxCount'];
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if(isset($options['keyName'])) {
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$params['KeyName'] = $options['keyName'];
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}
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if(is_array($options['securityGroup']) && !empty($options['securityGroup'])) {
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foreach($options['securityGroup'] as $k=>$name) {
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$params['SecurityGroup.' . ($k+1)] = $name;
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}
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} elseif(isset($options['securityGroup'])) {
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$params['SecurityGroup.1'] = $options['securityGroup'];
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}
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if(isset($options['userData'])) {
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$params['UserData'] = base64_encode($options['userData']);
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}
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if(isset($options['instanceType'])) {
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$params['InstanceType'] = $options['instanceType'];
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}
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if(isset($options['placement'])) {
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$params['Placement.AvailabilityZone'] = $options['placement'];
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}
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if(isset($options['kernelId'])) {
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$params['KernelId'] = $options['kernelId'];
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}
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if(isset($options['ramdiskId'])) {
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$params['RamdiskId'] = $options['ramdiskId'];
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}
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if(isset($options['blockDeviceVirtualName']) && isset($options['blockDeviceName'])) {
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$params['BlockDeviceMapping.n.VirtualName'] = $options['blockDeviceVirtualName'];
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$params['BlockDeviceMapping.n.DeviceName'] = $options['blockDeviceName'];
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['reservationId'] = $xpath->evaluate('string(//ec2:reservationId/text())');
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$return['ownerId'] = $xpath->evaluate('string(//ec2:ownerId/text())');
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$gs = $xpath->query('//ec2:groupSet/ec2:item');
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foreach($gs as $gs_node) {
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$return['groupSet'][] = $xpath->evaluate('string(ec2:groupId/text())', $gs_node);
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unset($gs_node);
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}
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unset($gs);
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$is = $xpath->query('//ec2:instancesSet/ec2:item');
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foreach($is as $is_node) {
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$item = array();
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$item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $is_node);
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$item['imageId'] = $xpath->evaluate('string(ec2:imageId/text())', $is_node);
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$item['instanceState']['code'] = $xpath->evaluate('string(ec2:instanceState/ec2:code/text())', $is_node);
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$item['instanceState']['name'] = $xpath->evaluate('string(ec2:instanceState/ec2:name/text())', $is_node);
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$item['privateDnsName'] = $xpath->evaluate('string(ec2:privateDnsName/text())', $is_node);
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$item['dnsName'] = $xpath->evaluate('string(ec2:dnsName/text())', $is_node);
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$item['keyName'] = $xpath->evaluate('string(ec2:keyName/text())', $is_node);
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$item['instanceType'] = $xpath->evaluate('string(ec2:instanceType/text())', $is_node);
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$item['amiLaunchIndex'] = $xpath->evaluate('string(ec2:amiLaunchIndex/text())', $is_node);
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$item['launchTime'] = $xpath->evaluate('string(ec2:launchTime/text())', $is_node);
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$item['availabilityZone'] = $xpath->evaluate('string(ec2:placement/ec2:availabilityZone/text())', $is_node);
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$return['instances'][] = $item;
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unset($item);
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unset($is_node);
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}
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unset($is);
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return $return;
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}
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/**
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* Returns information about instances that you own.
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*
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* If you specify one or more instance IDs, Amazon EC2 returns information
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* for those instances. If you do not specify instance IDs, Amazon EC2
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* returns information for all relevant instances. If you specify an invalid
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* instance ID, a fault is returned. If you specify an instance that you do
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* not own, it will not be included in the returned results.
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*
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* Recently terminated instances might appear in the returned results.
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* This interval is usually less than one hour.
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*
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* @param string|array $instaceId Set of instances IDs of which to get the status.
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* @param boolean Ture to ignore Terminated Instances.
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* @return array
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*/
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public function describe($instanceId = null, $ignoreTerminated = false)
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{
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$params = array();
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$params['Action'] = 'DescribeInstances';
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if(is_array($instanceId) && !empty($instanceId)) {
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foreach($instanceId as $k=>$name) {
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$params['InstanceId.' . ($k+1)] = $name;
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}
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} elseif($instanceId) {
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$params['InstanceId.1'] = $instanceId;
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$nodes = $xpath->query('//ec2:reservationSet/ec2:item');
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$return = array();
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foreach($nodes as $node) {
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$return['reservationId'] = $xpath->evaluate('string(ec2:reservationId/text())', $node);
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$return['ownerId'] = $xpath->evaluate('string(ec2:ownerId/text())', $node);
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$gs = $xpath->query('ec2:groupSet/ec2:item', $node);
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foreach($gs as $gs_node) {
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$return['groupSet'][] = $xpath->evaluate('string(ec2:groupId/text())', $gs_node);
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unset($gs_node);
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}
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unset($gs);
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$is = $xpath->query('ec2:instancesSet/ec2:item', $node);
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$return['instances'] = array();
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foreach($is as $is_node) {
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if($xpath->evaluate('string(ec2:instanceState/ec2:code/text())', $is_node) == 48 && $ignoreTerminated) continue;
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$item = array();
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$item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $is_node);
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$item['imageId'] = $xpath->evaluate('string(ec2:imageId/text())', $is_node);
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$item['instanceState']['code'] = $xpath->evaluate('string(ec2:instanceState/ec2:code/text())', $is_node);
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$item['instanceState']['name'] = $xpath->evaluate('string(ec2:instanceState/ec2:name/text())', $is_node);
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$item['privateDnsName'] = $xpath->evaluate('string(ec2:privateDnsName/text())', $is_node);
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$item['dnsName'] = $xpath->evaluate('string(ec2:dnsName/text())', $is_node);
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$item['keyName'] = $xpath->evaluate('string(ec2:keyName/text())', $is_node);
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$item['productCode'] = $xpath->evaluate('string(ec2:productCodesSet/ec2:item/ec2:productCode/text())', $is_node);
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$item['instanceType'] = $xpath->evaluate('string(ec2:instanceType/text())', $is_node);
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$item['launchTime'] = $xpath->evaluate('string(ec2:launchTime/text())', $is_node);
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$item['availabilityZone'] = $xpath->evaluate('string(ec2:placement/ec2:availabilityZone/text())', $is_node);
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$item['kernelId'] = $xpath->evaluate('string(ec2:kernelId/text())', $is_node);
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$item['ramediskId'] = $xpath->evaluate('string(ec2:ramediskId/text())', $is_node);
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$return['instances'][] = $item;
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unset($item);
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unset($is_node);
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}
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unset($is);
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}
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return $return;
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}
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/**
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* Returns information about instances that you own that were started from
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* a specific imageId
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*
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* Recently terminated instances might appear in the returned results.
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* This interval is usually less than one hour.
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*
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* @param string $imageId The imageId used to start the Instance.
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* @param boolean Ture to ignore Terminated Instances.
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* @return array
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*/
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public function describeByImageId($imageId, $ignoreTerminated = false)
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{
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$arrInstances = $this->describe(null, $ignoreTerminated);
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$return = array();
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foreach($arrInstances['instances'] as $k => $instance) {
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if($instance['imageId'] !== $imageId) continue;
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$instance['groupSet'] = $arrInstances['groupSet'][$k];
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$return[] = $instance;
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}
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return $return;
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}
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/**
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* Shuts down one or more instances. This operation is idempotent; if you terminate
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* an instance more than once, each call will succeed.
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*
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* Terminated instances will remain visible after termination (approximately one hour).
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*
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* @param string|array $instanceId One or more instance IDs returned.
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* @return array
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*/
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public function terminate($instanceId)
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{
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$params = array();
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$params['Action'] = 'TerminateInstances';
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if(is_array($instanceId) && !empty($instanceId)) {
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foreach($instanceId as $k=>$name) {
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$params['InstanceId.' . ($k+1)] = $name;
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}
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} elseif($instanceId) {
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$params['InstanceId.1'] = $instanceId;
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}
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$nodes = $xpath->query('//ec2:instancesSet/ec2:item');
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$return = array();
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foreach($nodes as $node) {
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$item = array();
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$item['instanceId'] = $xpath->evaluate('string(ec2:instanceId/text())', $node);
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$item['shutdownState']['code'] = $xpath->evaluate('string(ec2:shutdownState/ec2:code/text())', $node);
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$item['shutdownState']['name'] = $xpath->evaluate('string(ec2:shutdownState/ec2:name/text())', $node);
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$item['previousState']['code'] = $xpath->evaluate('string(ec2:previousState/ec2:code/text())', $node);
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$item['previousState']['name'] = $xpath->evaluate('string(ec2:previousState/ec2:name/text())', $node);
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$return[] = $item;
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unset($item);
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}
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return $return;
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}
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/**
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* Requests a reboot of one or more instances.
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*
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* This operation is asynchronous; it only queues a request to reboot the specified instance(s). The operation
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* will succeed if the instances are valid and belong to the user. Requests to reboot terminated instances are ignored.
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*
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* @param string|array $instanceId One or more instance IDs.
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* @return boolean
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*/
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public function reboot($instanceId)
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{
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$params = array();
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$params['Action'] = 'RebootInstances';
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if(is_array($instanceId) && !empty($instanceId)) {
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foreach($instanceId as $k=>$name) {
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$params['InstanceId.' . ($k+1)] = $name;
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}
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} elseif($instanceId) {
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$params['InstanceId.1'] = $instanceId;
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}
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$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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* Retrieves console output for the specified instance.
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*
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* Instance console output is buffered and posted shortly after instance boot, reboot, and termination.
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* Amazon EC2 preserves the most recent 64 KB output which will be available for at least one hour after the most recent post.
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*
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* @param string $instanceId An instance ID
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* @return array
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*/
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public function consoleOutput($instanceId)
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{
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$params = array();
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$params['Action'] = 'GetConsoleOutput';
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$params['InstanceId'] = $instanceId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$return = array();
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$return['instanceId'] = $xpath->evaluate('string(//ec2:instanceId/text())');
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$return['timestamp'] = $xpath->evaluate('string(//ec2:timestamp/text())');
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$return['output'] = base64_decode($xpath->evaluate('string(//ec2:output/text())'));
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return $return;
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}
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/**
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* Returns true if the specified product code is attached to the specified instance.
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* The operation returns false if the product code is not attached to the instance.
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*
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* The confirmProduct operation can only be executed by the owner of the AMI.
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* This feature is useful when an AMI owner is providing support and wants to
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* verify whether a user's instance is eligible.
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*
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* @param string $productCode The product code to confirm.
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* @param string $instanceId The instance for which to confirm the product code.
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* @return array|boolean An array if the product code is attached to the instance, false if it is not.
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*/
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public function confirmProduct($productCode, $instanceId)
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{
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$params = array();
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$params['Action'] = 'ConfirmProductInstance';
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$params['ProductCode'] = $productCode;
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$params['InstanceId'] = $instanceId;
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$response = $this->sendRequest($params);
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$xpath = $response->getXPath();
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$result = $xpath->evaluate('string(//ec2:result/text())');
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if($result === "true") {
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$return['result'] = true;
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$return['ownerId'] = $xpath->evaluate('string(//ec2:ownerId/text())');
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return $return;
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}
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return false;
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}
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}
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