NOTE: For Version 3 of the AWS SDK for PHP, please see the V3 User Guide and V3 API Reference.

# Class AutoScalingClient

Client to interact with Auto Scaling

  Guzzle\Common\AbstractHasDispatcher implements Guzzle\Common\HasDispatcherInterface
  Guzzle\Http\Client implements Guzzle\Http\ClientInterface
  Guzzle\Service\Client implements Guzzle\Service\ClientInterface
  Aws\Common\Client\AbstractClient implements Aws\Common\Client\AwsClientInterface
  Aws\AutoScaling\AutoScalingClient

Namespace: Aws\AutoScaling
Link: User guide
Link: API docs
Located at Aws/AutoScaling/AutoScalingClient.php

## Methods summary

- `public static` `factory ( array|Collection $config = array() )`

  Factory method to create a new Auto Scaling client using an array of configuration options.

- `public` `attachInstances ( array $args = array() )`

  Executes the AttachInstances operation.

- `public` `attachLoadBalancers ( array $args = array() )`

  Executes the AttachLoadBalancers operation.

- `public` `completeLifecycleAction ( array $args = array() )`

  Executes the CompleteLifecycleAction operation.

- `public` `createAutoScalingGroup ( array $args = array() )`

  Executes the CreateAutoScalingGroup operation.

- `public` `createLaunchConfiguration ( array $args = array() )`

  Executes the CreateLaunchConfiguration operation.

- `public` `createOrUpdateTags ( array $args = array() )`

  Executes the CreateOrUpdateTags operation.

- `public` `deleteAutoScalingGroup ( array $args = array() )`

  Executes the DeleteAutoScalingGroup operation.

- `public` `deleteLaunchConfiguration ( array $args = array() )`

  Executes the DeleteLaunchConfiguration operation.

- `public` `deleteLifecycleHook ( array $args = array() )`

  Executes the DeleteLifecycleHook operation.

- `public` `deleteNotificationConfiguration ( array $args = array() )`

  Executes the DeleteNotificationConfiguration operation.

- `public` `deletePolicy ( array $args = array() )`

  Executes the DeletePolicy operation.

- `public` `deleteScheduledAction ( array $args = array() )`

  Executes the DeleteScheduledAction operation.

- `public` `deleteTags ( array $args = array() )`

  Executes the DeleteTags operation.

- `public` `describeAccountLimits ( array $args = array() )`

  Executes the DescribeAccountLimits operation.

- `public` `describeAdjustmentTypes ( array $args = array() )`

  Executes the DescribeAdjustmentTypes operation.

- `public` `describeAutoScalingGroups ( array $args = array() )`

  Executes the DescribeAutoScalingGroups operation.

- `public` `describeAutoScalingInstances ( array $args = array() )`

  Executes the DescribeAutoScalingInstances operation.

- `public` `describeAutoScalingNotificationTypes ( array $args = array() )`

  Executes the DescribeAutoScalingNotificationTypes operation.

- `public` `describeLaunchConfigurations ( array $args = array() )`

  Executes the DescribeLaunchConfigurations operation.

- `public` `describeLifecycleHookTypes ( array $args = array() )`

  Executes the DescribeLifecycleHookTypes operation.

- `public` `describeLifecycleHooks ( array $args = array() )`

  Executes the DescribeLifecycleHooks operation.

- `public` `describeLoadBalancers ( array $args = array() )`

  Executes the DescribeLoadBalancers operation.

- `public` `describeMetricCollectionTypes ( array $args = array() )`

  Executes the DescribeMetricCollectionTypes operation.

- `public` `describeNotificationConfigurations ( array $args = array() )`

  Executes the DescribeNotificationConfigurations operation.

- `public` `describePolicies ( array $args = array() )`

  Executes the DescribePolicies operation.

- `public` `describeScalingActivities ( array $args = array() )`

  Executes the DescribeScalingActivities operation.

- `public` `describeScalingProcessTypes ( array $args = array() )`

  Executes the DescribeScalingProcessTypes operation.

- `public` `describeScheduledActions ( array $args = array() )`

  Executes the DescribeScheduledActions operation.

- `public` `describeTags ( array $args = array() )`

  Executes the DescribeTags operation.

- `public` `describeTerminationPolicyTypes ( array $args = array() )`

  Executes the DescribeTerminationPolicyTypes operation.

- `public` `detachInstances ( array $args = array() )`

  Executes the DetachInstances operation.

- `public` `detachLoadBalancers ( array $args = array() )`

  Executes the DetachLoadBalancers operation.

- `public` `disableMetricsCollection ( array $args = array() )`

  Executes the DisableMetricsCollection operation.

- `public` `enableMetricsCollection ( array $args = array() )`

  Executes the EnableMetricsCollection operation.

- `public` `enterStandby ( array $args = array() )`

  Executes the EnterStandby operation.

- `public` `executePolicy ( array $args = array() )`

  Executes the ExecutePolicy operation.

- `public` `exitStandby ( array $args = array() )`

  Executes the ExitStandby operation.

- `public` `putLifecycleHook ( array $args = array() )`

  Executes the PutLifecycleHook operation.

- `public` `putNotificationConfiguration ( array $args = array() )`

  Executes the PutNotificationConfiguration operation.

- `public` `putScalingPolicy ( array $args = array() )`

  Executes the PutScalingPolicy operation.

- `public` `putScheduledUpdateGroupAction ( array $args = array() )`

  Executes the PutScheduledUpdateGroupAction operation.

- `public` `recordLifecycleActionHeartbeat ( array $args = array() )`

  Executes the RecordLifecycleActionHeartbeat operation.

- `public` `resumeProcesses ( array $args = array() )`

  Executes the ResumeProcesses operation.

- `public` `setDesiredCapacity ( array $args = array() )`

  Executes the SetDesiredCapacity operation.

- `public` `setInstanceHealth ( array $args = array() )`

  Executes the SetInstanceHealth operation.

- `public` `suspendProcesses ( array $args = array() )`

  Executes the SuspendProcesses operation.

- `public` `terminateInstanceInAutoScalingGroup ( array $args = array() )`

  Executes the TerminateInstanceInAutoScalingGroup operation.

- `public` `updateAutoScalingGroup ( array $args = array() )`

  Executes the UpdateAutoScalingGroup operation.

- `public` `getDescribeAutoScalingGroupsIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeAutoScalingGroups operation

- `public` `getDescribeAutoScalingInstancesIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeAutoScalingInstances operation

- `public` `getDescribeLaunchConfigurationsIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeLaunchConfigurations operation

- `public` `getDescribeNotificationConfigurationsIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeNotificationConfigurations operation

- `public` `getDescribePoliciesIterator ( array $args = array() )`

  The input array uses the parameters of the DescribePolicies operation

- `public` `getDescribeScalingActivitiesIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeScalingActivities operation

- `public` `getDescribeScheduledActionsIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeScheduledActions operation

- `public` `getDescribeTagsIterator ( array $args = array() )`

  The input array uses the parameters of the DescribeTags operation

## Methods detail

# `public static `Aws\AutoScaling\AutoScalingClient``
`factory( array|`Guzzle\Common\Collection` $config = array() )`

Factory method to create a new Auto Scaling client using an array of configuration options.

#### Parameters

$config
  `array|`Guzzle\Common\Collection``
  $config Client configuration data

#### Returns

``Aws\AutoScaling\AutoScalingClient``

#### Link

http://docs.aws.amazon.com/aws-sdk-php/v2/guide/configuration.html#client-configuration-options

#### Overrides

`Guzzle\Service\Client::factory`
# `public `Guzzle\Service\Resource\Model``
`attachInstances( array $args = array() )`

Executes the AttachInstances operation.

Attaches one or more EC2 instances to the specified Auto Scaling group.

For more information, see Attach EC2 Instances to Your Auto Scaling Group in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->attachInstances(array(
          'InstanceIds' => array('string', ... ),
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceIds => (array<string>)

    One or more EC2 instance IDs.

  - AutoScalingGroupName => (string)

    The name of the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`attachLoadBalancers( array $args = array() )`

Executes the AttachLoadBalancers operation.

Attaches one or more load balancers to the specified Auto Scaling group.

To describe the load balancers for an Auto Scaling group, use DescribeLoadBalancers. To detach the load balancer from the Auto Scaling group, use DetachLoadBalancers.

For more information, see Attach a Load Balancer to Your Auto Scaling Group in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->attachLoadBalancers(array(
          'AutoScalingGroupName' => 'string',
          'LoadBalancerNames' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - LoadBalancerNames => (array<string>)

    One or more load balancer names.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`completeLifecycleAction( array $args = array() )`

Executes the CompleteLifecycleAction operation.

Completes the lifecycle action for the associated token initiated under the given lifecycle hook with the specified result.

This operation is a part of the basic sequence for adding a lifecycle hook to an Auto Scaling group:

1. Create a notification target. A target can be either an Amazon SQS queue or an Amazon SNS topic.
2. Create an IAM role. This role allows Auto Scaling to publish lifecycle notifications to the designated SQS queue or SNS topic.
3. Create the lifecycle hook. You can create a hook that acts when instances launch or when instances terminate.
4. If necessary, record the lifecycle action heartbeat to keep the instance in a pending state.
5. Complete the lifecycle action.

For more information, see Auto Scaling Pending State and Auto Scaling Terminating State in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->completeLifecycleAction(array(
          // LifecycleHookName is required
          'LifecycleHookName' => 'string',
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LifecycleActionToken' => 'string',
          // LifecycleActionResult is required
          'LifecycleActionResult' => 'string',
          'InstanceId' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LifecycleHookName => (string)

    The name of the lifecycle hook.

  - AutoScalingGroupName => (string)

    The name of the group for the lifecycle hook.

  - LifecycleActionToken => (string)

    A universally unique identifier (UUID) that identifies a specific lifecycle action associated with an instance. Auto Scaling sends this token to the notification target you specified when you created the lifecycle hook.

  - LifecycleActionResult => (string)

    The action for the group to take. This parameter can be either CONTINUE or ABANDON.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`createAutoScalingGroup( array $args = array() )`

Executes the CreateAutoScalingGroup operation.

Creates an Auto Scaling group with the specified name and attributes.

If you exceed your maximum limit of Auto Scaling groups, which by default is 20 per region, the call fails. For information about viewing and updating this limit, see DescribeAccountLimits.

For more information, see Auto Scaling Groups in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->createAutoScalingGroup(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LaunchConfigurationName' => 'string',
          'InstanceId' => 'string',
          // MinSize is required
          'MinSize' => integer,
          // MaxSize is required
          'MaxSize' => integer,
          'DesiredCapacity' => integer,
          'DefaultCooldown' => integer,
          'AvailabilityZones' => array('string', ... ),
          'LoadBalancerNames' => array('string', ... ),
          'HealthCheckType' => 'string',
          'HealthCheckGracePeriod' => integer,
          'PlacementGroup' => 'string',
          'VPCZoneIdentifier' => 'string',
          'TerminationPolicies' => array('string', ... ),
          'NewInstancesProtectedFromScaleIn' => true || false,
          'Tags' => array(
              array(
                  'ResourceId' => 'string',
                  'ResourceType' => 'string',
                  // Key is required
                  'Key' => 'string',
                  'Value' => 'string',
                  'PropagateAtLaunch' => true || false,
              ),
              // ... repeated
          ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group. This name must be unique within the scope of your AWS account.

  - LaunchConfigurationName => (string)

    The name of the launch configuration. Alternatively, use the InstanceId parameter to specify an EC2 instance instead of a launch configuration.

  - InstanceId => (string)

    The ID of the EC2 instance used to create a launch configuration for the group. Alternatively, use the LaunchConfigurationName parameter to specify a launch configuration instead of an EC2 instance.

    When you specify an ID of an instance, Auto Scaling creates a new launch configuration and associates it with the group. This launch configuration derives its attributes from the specified instance, with the exception of the block device mapping.

    For more information, see Create an Auto Scaling Group from an EC2 Instance in the Auto Scaling Developer Guide.

  - MinSize => (int)

    The minimum size of the group.

  - MaxSize => (int)

    The maximum size of the group.

  - DesiredCapacity => (int)

    The number of EC2 instances that should be running in the group. This number must be greater than or equal to the minimum size of the group and less than or equal to the maximum size of the group.

  - DefaultCooldown => (int)

    The amount of time, in seconds, after a scaling activity completes before another scaling activity can start.

    If this parameter is not specified, the default value is 300. For more information, see Understanding Auto Scaling Cooldowns in the Auto Scaling Developer Guide.

  - AvailabilityZones => (array<string>)

    One or more Availability Zones for the group. This parameter is optional if you specify subnets using the VPCZoneIdentifier parameter.

  - LoadBalancerNames => (array<string>)

    One or more load balancers.

    For more information, see Load Balance Your Auto Scaling Group in the Auto Scaling Developer Guide.

  - HealthCheckType => (string)

    The service to use for the health checks. The valid values are EC2 and ELB.

    By default, health checks use Amazon EC2 instance status checks to determine the health of an instance. For more information, see Health Checks.

  - HealthCheckGracePeriod => (int)

    The amount of time, in seconds, after an EC2 instance comes into service that Auto Scaling starts checking its health. During this time, any health check failures for the instance are ignored.

    This parameter is required if you are adding an ELB health check. Frequently, new instances need to warm up, briefly, before they can pass a health check. To provide ample warm-up time, set the health check grace period of the group to match the expected startup period of your application.

    For more information, see Add an Elastic Load Balancing Health Check to Your Auto Scaling Group in the Auto Scaling Developer Guide.

  - PlacementGroup => (string)

    The name of the placement group into which you'll launch your instances, if any. For more information, see Placement Groups in the Amazon Elastic Compute Cloud User Guide.

  - VPCZoneIdentifier => (string)

    A comma-separated list of subnet identifiers for your virtual private cloud (VPC).

    If you specify subnets and Availability Zones with this call, ensure that the subnets' Availability Zones match the Availability Zones specified.

    For more information, see Auto Scaling and Amazon Virtual Private Cloud in the Auto Scaling Developer Guide.

  - TerminationPolicies => (array<string>)

    One or more termination policies used to select the instance to terminate. These policies are executed in the order that they are listed.

    For more information, see Choosing a Termination Policy for Your Auto Scaling Group in the Auto Scaling Developer Guide.

  - Tags => (array<associative-array>)

    The tag to be created or updated. Each tag should be defined by its resource type, resource ID, key, value, and a propagate flag. Valid values: key=value, value=value, propagate=true or false. Value and propagate are optional parameters.

    For more information, see Tagging Auto Scaling Groups and Instances in the Auto Scaling Developer Guide.

    - (associative-array)

      Describes a tag for an Auto Scaling group.

      - ResourceId => (string)

        The name of the group.

      - ResourceType => (string)

        The type of resource. The only supported value is auto-scaling-group.

      - Key => (string)

        The tag key.

      - Value => (string)

        The tag value.

      - PropagateAtLaunch => (bool)

        Determines whether the tag is added to new instances as they are launched in the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`createLaunchConfiguration( array $args = array() )`

Executes the CreateLaunchConfiguration operation.

Creates a launch configuration.

If you exceed your maximum limit of launch configurations, which by default is 100 per region, the call fails. For information about viewing and updating this limit, see DescribeAccountLimits.

For more information, see Launch Configurations in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->createLaunchConfiguration(array(
          // LaunchConfigurationName is required
          'LaunchConfigurationName' => 'string',
          'ImageId' => 'string',
          'KeyName' => 'string',
          'SecurityGroups' => array('string', ... ),
          'ClassicLinkVPCId' => 'string',
          'ClassicLinkVPCSecurityGroups' => array('string', ... ),
          'UserData' => 'string',
          'InstanceId' => 'string',
          'InstanceType' => 'string',
          'KernelId' => 'string',
          'RamdiskId' => 'string',
          'BlockDeviceMappings' => array(
              array(
                  'VirtualName' => 'string',
                  // DeviceName is required
                  'DeviceName' => 'string',
                  'Ebs' => array(
                      'SnapshotId' => 'string',
                      'VolumeSize' => integer,
                      'VolumeType' => 'string',
                      'DeleteOnTermination' => true || false,
                      'Iops' => integer,
                      'Encrypted' => true || false,
                  ),
                  'NoDevice' => true || false,
              ),
              // ... repeated
          ),
          'InstanceMonitoring' => array(
              'Enabled' => true || false,
          ),
          'SpotPrice' => 'string',
          'IamInstanceProfile' => 'string',
          'EbsOptimized' => true || false,
          'AssociatePublicIpAddress' => true || false,
          'PlacementTenancy' => 'string',
      ));

- CreateLaunchConfiguration

      $client->createLaunchConfiguration(array(
          'LaunchConfigurationName' => $launchConfigName,
          'ImageId'                 => self::TEST_AMI,
          'InstanceType'            => InstanceType::M1_SMALL,
      ));

- CreateLaunchConfiguration

      $client->createLaunchConfiguration(array(
          'LaunchConfigurationName' => $launchConfigName,
          'ImageId'                 => self::TEST_AMI,
          'InstanceType'            => InstanceType::M1_SMALL,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LaunchConfigurationName => (string)

    The name of the launch configuration. This name must be unique within the scope of your AWS account.

  - ImageId => (string)

    The ID of the Amazon Machine Image (AMI) to use to launch your EC2 instances. For more information, see Finding an AMI in the Amazon Elastic Compute Cloud User Guide.

  - KeyName => (string)

    The name of the key pair. For more information, see Amazon EC2 Key Pairs in the Amazon Elastic Compute Cloud User Guide.

  - SecurityGroups => (array<string>)

    One or more security groups with which to associate the instances.

    If your instances are launched in EC2-Classic, you can either specify security group names or the security group IDs. For more information about security groups for EC2-Classic, see Amazon EC2 Security Groups in the Amazon Elastic Compute Cloud User Guide.

    If your instances are launched into a VPC, specify security group IDs. For more information, see Security Groups for Your VPC in the Amazon Virtual Private Cloud User Guide.

  - ClassicLinkVPCId => (string)

    The ID of a ClassicLink-enabled VPC to link your EC2-Classic instances to. This parameter is supported only if you are launching EC2-Classic instances. For more information, see ClassicLink in the Amazon Elastic Compute Cloud User Guide.

  - ClassicLinkVPCSecurityGroups => (array<string>)

    The IDs of one or more security groups for the VPC specified in ClassicLinkVPCId. This parameter is required if ClassicLinkVPCId is specified, and is not supported otherwise. For more information, see ClassicLink in the Amazon Elastic Compute Cloud User Guide.

  - UserData => (string)

    The user data to make available to the launched EC2 instances. For more information, see Instance Metadata and User Data in the Amazon Elastic Compute Cloud User Guide.

    At this time, launch configurations don't support compressed (zipped) user data files.

  - InstanceId => (string)

    The ID of the EC2 instance to use to create the launch configuration.

    The new launch configuration derives attributes from the instance, with the exception of the block device mapping.

    To create a launch configuration with a block device mapping or override any other instance attributes, specify them as part of the same request.

    For more information, see Create a Launch Configuration Using an EC2 Instance in the Auto Scaling Developer Guide.

  - InstanceType => (string)

    The instance type of the EC2 instance. For information about available instance types, see Available Instance Types in the Amazon Elastic Cloud Compute User Guide.

  - KernelId => (string)

    The ID of the kernel associated with the AMI.

  - RamdiskId => (string)

    The ID of the RAM disk associated with the AMI.

  - BlockDeviceMappings => (array<associative-array>)

    One or more mappings that specify how block devices are exposed to the instance. For more information, see Block Device Mapping in the Amazon Elastic Compute Cloud User Guide.

    - (associative-array)

      Describes a block device mapping.

      - VirtualName => (string)

        The name of the virtual device, ephemeral0 to ephemeral3.

      - DeviceName => (string)

        The device name exposed to the EC2 instance (for example, /dev/sdh or xvdh).

      - Ebs => (associative-array)

        The information about the Amazon EBS volume.

        - SnapshotId => (string)

          The ID of the snapshot.

        - VolumeSize => (int)

          The volume size, in gigabytes.

          Valid values: If the volume type is io1, the minimum size of the volume is 10 GiB. If you specify SnapshotId and VolumeSize, VolumeSize must be equal to or larger than the size of the snapshot.

          Default: If you create a volume from a snapshot and you don't specify a volume size, the default is the size of the snapshot.

          Required: Required when the volume type is io1.

        - VolumeType => (string)

          The volume type.

          Valid values: standard | io1 | gp2

          Default: standard

        - DeleteOnTermination => (bool)

          Indicates whether to delete the volume on instance termination.

          Default: true

        - Iops => (int)

          For Provisioned IOPS (SSD) volumes only. The number of I/O operations per second (IOPS) to provision for the volume.

          Valid values: Range is 100 to 4000.

          Default: None

      - NoDevice => (bool)

        Suppresses a device mapping.

        If this parameter is true for the root device, the instance might fail the EC2 health check. Auto Scaling launches a replacement instance if the instance fails the health check.

  - InstanceMonitoring => (associative-array)

    Enables detailed monitoring if it is disabled. Detailed monitoring is enabled by default.

    When detailed monitoring is enabled, Amazon CloudWatch generates metrics every minute and your account is charged a fee. When you disable detailed monitoring, by specifying False, CloudWatch generates metrics every 5 minutes. For more information, see Monitor Your Auto Scaling Instances in the Auto Scaling Developer Guide.

    - Enabled => (bool)

      If True, instance monitoring is enabled.

  - SpotPrice => (string)

    The maximum hourly price to be paid for any Spot Instance launched to fulfill the request. Spot Instances are launched when the price you specify exceeds the current Spot market price. For more information, see Launch Spot Instances in Your Auto Scaling Group in the Auto Scaling Developer Guide.

  - IamInstanceProfile => (string)

    The name or the Amazon Resource Name (ARN) of the instance profile associated with the IAM role for the instance.

    EC2 instances launched with an IAM role will automatically have AWS security credentials available. You can use IAM roles with Auto Scaling to automatically enable applications running on your EC2 instances to securely access other AWS resources. For more information, see Launch Auto Scaling Instances with an IAM Role in the Auto Scaling Developer Guide.

  - EbsOptimized => (bool)

    Indicates whether the instance is optimized for Amazon EBS I/O. By default, the instance is not optimized for EBS I/O. The optimization provides dedicated throughput to Amazon EBS and an optimized configuration stack to provide optimal I/O performance. This optimization is not available with all instance types. Additional usage charges apply. For more information, see Amazon EBS-Optimized Instances in the Amazon Elastic Compute Cloud User Guide.

  - AssociatePublicIpAddress => (bool)

    Used for groups that launch instances into a virtual private cloud (VPC). Specifies whether to assign a public IP address to each instance. For more information, see Auto Scaling and Amazon Virtual Private Cloud in the Auto Scaling Developer Guide.

    If you specify a value for this parameter, be sure to specify at least one subnet using the VPCZoneIdentifier parameter when you create your group.

    Default: If the instance is launched into a default subnet, the default is true. If the instance is launched into a nondefault subnet, the default is false. For more information, see Supported Platforms in the Amazon Elastic Compute Cloud User Guide.

  - PlacementTenancy => (string)

    The tenancy of the instance. An instance with a tenancy of dedicated runs on single-tenant hardware and can only be launched into a VPC.

    You must set the value of this parameter to dedicated if want to launch Dedicated Instances into a shared tenancy VPC (VPC with instance placement tenancy attribute set to default).

    If you specify a value for this parameter, be sure to specify at least one subnet using the VPCZoneIdentifier parameter when you create your group.

    For more information, see Auto Scaling and Amazon Virtual Private Cloud in the Auto Scaling Developer Guide.

    Valid values: default | dedicated

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`createOrUpdateTags( array $args = array() )`

Executes the CreateOrUpdateTags operation.

Creates or updates tags for the specified Auto Scaling group.

A tag is defined by its resource ID, resource type, key, value, and propagate flag. The value and the propagate flag are optional parameters. The only supported resource type is auto-scaling-group , and the resource ID must be the name of the group. The PropagateAtLaunch flag determines whether the tag is added to instances launched in the group. Valid values are true or false .

When you specify a tag with a key that already exists, the operation overwrites the previous tag definition, and you do not get an error message.

For more information, see Tagging Auto Scaling Groups and Instances in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->createOrUpdateTags(array(
          // Tags is required
          'Tags' => array(
              array(
                  'ResourceId' => 'string',
                  'ResourceType' => 'string',
                  // Key is required
                  'Key' => 'string',
                  'Value' => 'string',
                  'PropagateAtLaunch' => true || false,
              ),
              // ... repeated
          ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - Tags => (array<associative-array>)

    One or more tags.

    - (associative-array)

      Describes a tag for an Auto Scaling group.

      - ResourceId => (string)

        The name of the group.

      - ResourceType => (string)

        The type of resource. The only supported value is auto-scaling-group.

      - Key => (string)

        The tag key.

      - Value => (string)

        The tag value.

      - PropagateAtLaunch => (bool)

        Determines whether the tag is added to new instances as they are launched in the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteAutoScalingGroup( array $args = array() )`

Executes the DeleteAutoScalingGroup operation.

Deletes the specified Auto Scaling group.

The group must have no instances and no scaling activities in progress.

To remove all instances before calling DeleteAutoScalingGroup , call UpdateAutoScalingGroup to set the minimum and maximum size of the Auto Scaling group to zero.

#### Examples

- Basic formatting example

      $result = $client->deleteAutoScalingGroup(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'ForceDelete' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group to delete.

  - ForceDelete => (bool)

    Specifies that the group will be deleted along with all instances associated with the group, without waiting for all instances to be terminated. This parameter also deletes any lifecycle actions associated with the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteLaunchConfiguration( array $args = array() )`

Executes the DeleteLaunchConfiguration operation.

Deletes the specified launch configuration.

The launch configuration must not be attached to an Auto Scaling group. When this call completes, the launch configuration is no longer available for use.

#### Examples

- Basic formatting example

      $result = $client->deleteLaunchConfiguration(array(
          // LaunchConfigurationName is required
          'LaunchConfigurationName' => 'string',
      ));

- Delete a launch configuration

      $client->deleteLaunchConfiguration(array(
          'LaunchConfigurationName' => $launchConfigName,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LaunchConfigurationName => (string)

    The name of the launch configuration.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteLifecycleHook( array $args = array() )`

Executes the DeleteLifecycleHook operation.

Deletes the specified lifecycle hook.

If there are any outstanding lifecycle actions, they are completed first ( ABANDON for launching instances, CONTINUE for terminating instances).

#### Examples

- Basic formatting example

      $result = $client->deleteLifecycleHook(array(
          // LifecycleHookName is required
          'LifecycleHookName' => 'string',
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LifecycleHookName => (string)

    The name of the lifecycle hook.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group for the lifecycle hook.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteNotificationConfiguration( array $args = array() )`

Executes the DeleteNotificationConfiguration operation.

Deletes the specified notification.

#### Examples

- Basic formatting example

      $result = $client->deleteNotificationConfiguration(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // TopicARN is required
          'TopicARN' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - TopicARN => (string)

    The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deletePolicy( array $args = array() )`

Executes the DeletePolicy operation.

Deletes the specified Auto Scaling policy.

#### Examples

- Basic formatting example

      $result = $client->deletePolicy(array(
          'AutoScalingGroupName' => 'string',
          // PolicyName is required
          'PolicyName' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - PolicyName => (string)

    The name or Amazon Resource Name (ARN) of the policy.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteScheduledAction( array $args = array() )`

Executes the DeleteScheduledAction operation.

Deletes the specified scheduled action.

#### Examples

- Basic formatting example

      $result = $client->deleteScheduledAction(array(
          'AutoScalingGroupName' => 'string',
          // ScheduledActionName is required
          'ScheduledActionName' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - ScheduledActionName => (string)

    The name of the action to delete.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`deleteTags( array $args = array() )`

Executes the DeleteTags operation.

Deletes the specified tags.

#### Examples

- Basic formatting example

      $result = $client->deleteTags(array(
          // Tags is required
          'Tags' => array(
              array(
                  'ResourceId' => 'string',
                  'ResourceType' => 'string',
                  // Key is required
                  'Key' => 'string',
                  'Value' => 'string',
                  'PropagateAtLaunch' => true || false,
              ),
              // ... repeated
          ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - Tags => (array<associative-array>)

    Each tag should be defined by its resource type, resource ID, key, value, and a propagate flag. Valid values are: Resource type = auto-scaling-group, Resource ID = AutoScalingGroupName, key=value, value=value, propagate=true or false.

    - (associative-array)

      Describes a tag for an Auto Scaling group.

      - ResourceId => (string)

        The name of the group.

      - ResourceType => (string)

        The type of resource. The only supported value is auto-scaling-group.

      - Key => (string)

        The tag key.

      - Value => (string)

        The tag value.

      - PropagateAtLaunch => (bool)

        Determines whether the tag is added to new instances as they are launched in the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`describeAccountLimits( array $args = array() )`

Executes the DescribeAccountLimits operation.

Describes the current Auto Scaling resource limits for your AWS account.

For information about requesting an increase in these limits, see AWS Service Limits in the Amazon Web Services General Reference.

#### Examples

- Basic formatting example

      $result = $client->describeAccountLimits(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- MaxNumberOfAutoScalingGroups => (int)

  The maximum number of groups allowed for your AWS account. The default limit is 20 per region.

- MaxNumberOfLaunchConfigurations => (int)

  The maximum number of launch configurations allowed for your AWS account. The default limit is 100 per region.

# `public `Guzzle\Service\Resource\Model``
`describeAdjustmentTypes( array $args = array() )`

Executes the DescribeAdjustmentTypes operation.

Describes the policy adjustment types for use with PutScalingPolicy.

#### Examples

- Basic formatting example

      $result = $client->describeAdjustmentTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- AdjustmentTypes => (array<associative-array>)

  The policy adjustment types.

  - (associative-array)

    Describes a policy adjustment type.

    For more information, see Dynamic Scaling in the Auto Scaling Developer Guide.

    - AdjustmentType => (string)

      The policy adjustment type. The valid values are ChangeInCapacity, ExactCapacity, and PercentChangeInCapacity.

# `public `Guzzle\Service\Resource\Model``
`describeAutoScalingGroups( array $args = array() )`

Executes the DescribeAutoScalingGroups operation.

Describes one or more Auto Scaling groups. If a list of names is not provided, the call describes all Auto Scaling groups.

#### Examples

- Basic formatting example

      $result = $client->describeAutoScalingGroups(array(
          'AutoScalingGroupNames' => array('string', ... ),
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupNames => (array<string>)

    The group names.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- AutoScalingGroups => (array<associative-array>)

  The groups.

  - (associative-array)

    Describes an Auto Scaling group.

    - AutoScalingGroupName => (string)

      The name of the group.

    - AutoScalingGroupARN => (string)

      The Amazon Resource Name (ARN) of the group.

    - LaunchConfigurationName => (string)

      The name of the associated launch configuration.

    - MinSize => (int)

      The minimum size of the group.

    - MaxSize => (int)

      The maximum size of the group.

    - DesiredCapacity => (int)

      The desired size of the group.

    - DefaultCooldown => (int)

      The number of seconds after a scaling activity completes before any further scaling activities can start.

    - AvailabilityZones => (array<string>)

      One or more Availability Zones for the group.

    - LoadBalancerNames => (array<string>)

      One or more load balancers associated with the group.

    - HealthCheckType => (string)

      The service of interest for the health status check, which can be either EC2 for Amazon EC2 or ELB for Elastic Load Balancing.

    - HealthCheckGracePeriod => (int)

      The amount of time that Auto Scaling waits before checking an instance's health status. The grace period begins when an instance comes into service.

    - Instances => (array<associative-array>)

      The EC2 instances associated with the group.

      - (associative-array)

        Describes an EC2 instance.

        - InstanceId => (string)

          The ID of the instance.

        - AvailabilityZone => (string)

          The Availability Zone in which the instance is running.

        - LifecycleState => (string)

          A description of the current lifecycle state. Note that the Quarantined state is not used.

        - HealthStatus => (string)

          The health status of the instance.

        - LaunchConfigurationName => (string)

          The launch configuration associated with the instance.

    - CreatedTime => (string)

      The date and time the group was created.

    - SuspendedProcesses => (array<associative-array>)

      The suspended processes associated with the group.

      - (associative-array)

        Describes an Auto Scaling process that has been suspended. For more information, see ProcessType.

        - ProcessName => (string)

          The name of the suspended process.

        - SuspensionReason => (string)

          The reason that the process was suspended.

    - PlacementGroup => (string)

      The name of the placement group into which you'll launch your instances, if any. For more information, see Placement Groups.

    - VPCZoneIdentifier => (string)

      One or more subnet IDs, if applicable, separated by commas.

      If you specify VPCZoneIdentifier and AvailabilityZones, ensure that the Availability Zones of the subnets match the values for AvailabilityZones.

    - EnabledMetrics => (array<associative-array>)

      The metrics enabled for the group.

      - (associative-array)

        Describes an enabled metric.

        - Metric => (string)

          The name of the metric.

          - GroupMinSize

          - GroupMaxSize

          - GroupDesiredCapacity

          - GroupInServiceInstances

          - GroupPendingInstances

          - GroupStandbyInstances

          - GroupTerminatingInstances

          - GroupTotalInstances

        - Granularity => (string)

          The granularity of the metric. The only valid value is 1Minute.

    - Status => (string)

      The current state of the group when DeleteAutoScalingGroup is in progress.

    - Tags => (array<associative-array>)

      The tags for the group.

      - (associative-array)

        Describes a tag for an Auto Scaling group.

        - ResourceId => (string)

          The name of the group.

        - ResourceType => (string)

          The type of resource. The only supported value is auto-scaling-group.

        - Key => (string)

          The tag key.

        - Value => (string)

          The tag value.

        - PropagateAtLaunch => (bool)

          Determines whether the tag is added to new instances as they are launched in the group.

    - TerminationPolicies => (array<string>)

      The termination policies for the group.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeAutoScalingInstances( array $args = array() )`

Executes the DescribeAutoScalingInstances operation.

Describes one or more Auto Scaling instances. If a list is not provided, the call describes all instances.

#### Examples

- Basic formatting example

      $result = $client->describeAutoScalingInstances(array(
          'InstanceIds' => array('string', ... ),
          'MaxRecords' => integer,
          'NextToken' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceIds => (array<string>)

    One or more Auto Scaling instances to describe, up to 50 instances. If you omit this parameter, all Auto Scaling instances are described. If you specify an ID that does not exist, it is ignored with no error.

  - MaxRecords => (int)

    The maximum number of items to return with this call.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- AutoScalingInstances => (array<associative-array>)

  The instances.

  - (associative-array)

    Describes an EC2 instance associated with an Auto Scaling group.

    - InstanceId => (string)

      The ID of the instance.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group associated with the instance.

    - AvailabilityZone => (string)

      The Availability Zone for the instance.

    - LifecycleState => (string)

      The lifecycle state for the instance. For more information, see Auto Scaling Instance States in the Auto Scaling Developer Guide.

    - HealthStatus => (string)

      The health status of this instance. "Healthy" means that the instance is healthy and should remain in service. "Unhealthy" means that the instance is unhealthy and Auto Scaling should terminate and replace it.

    - LaunchConfigurationName => (string)

      The launch configuration associated with the instance.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeAutoScalingNotificationTypes( array $args = array() )`

Executes the DescribeAutoScalingNotificationTypes operation.

Describes the notification types that are supported by Auto Scaling.

#### Examples

- Basic formatting example

      $result = $client->describeAutoScalingNotificationTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- AutoScalingNotificationTypes => (array<string>)

  One or more of the following notification types:

  - autoscaling:EC2_INSTANCE_LAUNCH

  - autoscaling:EC2_INSTANCE_LAUNCH_ERROR

  - autoscaling:EC2_INSTANCE_TERMINATE

  - autoscaling:EC2_INSTANCE_TERMINATE_ERROR

  - autoscaling:TEST_NOTIFICATION

# `public `Guzzle\Service\Resource\Model``
`describeLaunchConfigurations( array $args = array() )`

Executes the DescribeLaunchConfigurations operation.

Describes one or more launch configurations. If you omit the list of names, then the call describes all launch configurations.

#### Examples

- Basic formatting example

      $result = $client->describeLaunchConfigurations(array(
          'LaunchConfigurationNames' => array('string', ... ),
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

- Iterate over the results of DescribeLaunchConfigurations

      $iterator = $client->getIterator('DescribeLaunchConfigurations');
      foreach ($iterator as $launchConfig) {
          var_export($launchConfig);
      }
      // end
      $iterator->rewind();
      $configs = $iterator->toArray();
      $this->assertGreaterThanOrEqual(1, $configs);
      $this->assertArrayHasKey('LaunchConfigurationName', $configs[0]);

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LaunchConfigurationNames => (array<string>)

    The launch configuration names.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call. The default is 100.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- LaunchConfigurations => (array<associative-array>)

  The launch configurations.

  - (associative-array)

    Describes a launch configuration.

    - LaunchConfigurationName => (string)

      The name of the launch configuration.

    - LaunchConfigurationARN => (string)

      The Amazon Resource Name (ARN) of the launch configuration.

    - ImageId => (string)

      The ID of the Amazon Machine Image (AMI).

    - KeyName => (string)

      The name of the key pair.

    - SecurityGroups => (array<string>)

      The security groups to associate with the instances.

    - ClassicLinkVPCId => (string)

      The ID of a ClassicLink-enabled VPC to link your EC2-Classic instances to. This parameter can only be used if you are launching EC2-Classic instances. For more information, see ClassicLink in the Amazon Elastic Compute Cloud User Guide.

    - ClassicLinkVPCSecurityGroups => (array<string>)

      The IDs of one or more security groups for the VPC specified in ClassicLinkVPCId. This parameter is required if ClassicLinkVPCId is specified, and cannot be used otherwise. For more information, see ClassicLink in the Amazon Elastic Compute Cloud User Guide.

    - UserData => (string)

      The user data available to the instances.

    - InstanceType => (string)

      The instance type for the instances.

    - KernelId => (string)

      The ID of the kernel associated with the AMI.

    - RamdiskId => (string)

      The ID of the RAM disk associated with the AMI.

    - BlockDeviceMappings => (array<associative-array>)

      A block device mapping, which specifies the block devices for the instance.

      - (associative-array)

        Describes a block device mapping.

        - VirtualName => (string)

          The name of the virtual device, ephemeral0 to ephemeral3.

        - DeviceName => (string)

          The device name exposed to the EC2 instance (for example, /dev/sdh or xvdh).

        - Ebs => (associative-array)

          The information about the Amazon EBS volume.

          - SnapshotId => (string)

            The ID of the snapshot.

          - VolumeSize => (int)

            The volume size, in gigabytes.

            Valid values: If the volume type is io1, the minimum size of the volume is 10 GiB. If you specify SnapshotId and VolumeSize, VolumeSize must be equal to or larger than the size of the snapshot.

            Default: If you create a volume from a snapshot and you don't specify a volume size, the default is the size of the snapshot.

            Required: Required when the volume type is io1.

          - VolumeType => (string)

            The volume type.

            Valid values: standard | io1 | gp2

            Default: standard

          - DeleteOnTermination => (bool)

            Indicates whether to delete the volume on instance termination.

            Default: true

          - Iops => (int)

            For Provisioned IOPS (SSD) volumes only. The number of I/O operations per second (IOPS) to provision for the volume.

            Valid values: Range is 100 to 4000.

            Default: None

        - NoDevice => (bool)

          Suppresses a device mapping.

          If this parameter is true for the root device, the instance might fail the EC2 health check. Auto Scaling launches a replacement instance if the instance fails the health check.

    - InstanceMonitoring => (associative-array)

      Controls whether instances in this group are launched with detailed monitoring.

      - Enabled => (bool)

        If True, instance monitoring is enabled.

    - SpotPrice => (string)

      The price to bid when launching Spot Instances.

    - IamInstanceProfile => (string)

      The name or Amazon Resource Name (ARN) of the instance profile associated with the IAM role for the instance.

    - CreatedTime => (string)

      The creation date and time for the launch configuration.

    - EbsOptimized => (bool)

      Controls whether the instance is optimized for EBS I/O (true) or not (false).

    - AssociatePublicIpAddress => (bool)

      Specifies whether the instances are associated with a public IP address (true) or not (false).

    - PlacementTenancy => (string)

      The tenancy of the instance, either default or dedicated. An instance with dedicated tenancy runs in an isolated, single-tenant hardware and can only be launched into a VPC.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeLifecycleHookTypes( array $args = array() )`

Executes the DescribeLifecycleHookTypes operation.

Describes the available types of lifecycle hooks.

#### Examples

- Basic formatting example

      $result = $client->describeLifecycleHookTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- LifecycleHookTypes => (array<string>)

  One or more of the following notification types:

  - autoscaling:EC2_INSTANCE_LAUNCHING

  - autoscaling:EC2_INSTANCE_TERMINATING

# `public `Guzzle\Service\Resource\Model``
`describeLifecycleHooks( array $args = array() )`

Executes the DescribeLifecycleHooks operation.

Describes the lifecycle hooks for the specified Auto Scaling group.

#### Examples

- Basic formatting example

      $result = $client->describeLifecycleHooks(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LifecycleHookNames' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - LifecycleHookNames => (array<string>)

    The names of one or more lifecycle hooks.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- LifecycleHooks => (array<associative-array>)

  The lifecycle hooks for the specified group.

  - (associative-array)

    Describes a lifecycle hook, which tells Auto Scaling that you want to perform an action when an instance launches or terminates. When you have a lifecycle hook in place, the Auto Scaling group will either:

    - Pause the instance after it launches, but before it is put into service
    - Pause the instance as it terminates, but before it is fully terminated

    For more information, see Auto Scaling Pending State and Auto Scaling Terminating State in the Auto Scaling Developer Guide.

    - LifecycleHookName => (string)

      The name of the lifecycle hook.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group for the lifecycle hook.

    - LifecycleTransition => (string)

      The state of the EC2 instance to which you want to attach the lifecycle hook. For a list of lifecycle hook types, see DescribeLifecycleHookTypes.

    - NotificationTargetARN => (string)

      The ARN of the notification target that Auto Scaling uses to notify you when an instance is in the transition state for the lifecycle hook. This ARN target can be either an SQS queue or an SNS topic. The notification message sent to the target includes the following:

      - Lifecycle action token
      - User account ID
      - Name of the Auto Scaling group
      - Lifecycle hook name
      - EC2 instance ID
      - Lifecycle transition
      - Notification metadata
    - RoleARN => (string)

      The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.

    - NotificationMetadata => (string)

      Additional information that you want to include any time Auto Scaling sends a message to the notification target.

    - HeartbeatTimeout => (int)

      The amount of time that can elapse before the lifecycle hook times out. When the lifecycle hook times out, Auto Scaling performs the action defined in the DefaultResult parameter. You can prevent the lifecycle hook from timing out by calling RecordLifecycleActionHeartbeat.

    - GlobalTimeout => (int)

      The maximum length of time an instance can remain in a Pending:Wait or Terminating:Wait state. Currently, the maximum is set to 48 hours.

    - DefaultResult => (string)

      Defines the action the Auto Scaling group should take when the lifecycle hook timeout elapses or if an unexpected failure occurs. The valid values are CONTINUE and ABANDON. The default value is CONTINUE.

# `public `Guzzle\Service\Resource\Model``
`describeLoadBalancers( array $args = array() )`

Executes the DescribeLoadBalancers operation.

Describes the load balancers for the specified Auto Scaling group.

#### Examples

- Basic formatting example

      $result = $client->describeLoadBalancers(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- LoadBalancers => (array<associative-array>)

  The load balancers.

  - (associative-array)

    Describes the state of a load balancer.

    - LoadBalancerName => (string)

      The name of the load balancer.

    - State => (string)

      The state of the load balancer.

      - Adding - The instances in the group are being registered with the load balancer.

      - Added - All instances in the group are registered with the load balancer.

      - InService - At least one instance in the group passed an ELB health check.

      - Removing - The instances are being deregistered from the load balancer. If connection draining is enabled, Elastic Load Balancing waits for in-flight requests to complete before deregistering the instances.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeMetricCollectionTypes( array $args = array() )`

Executes the DescribeMetricCollectionTypes operation.

Describes the available CloudWatch metrics for Auto Scaling.

Note that the GroupStandbyInstances metric is not returned by default. You must explicitly request this metric when calling EnableMetricsCollection.

#### Examples

- Basic formatting example

      $result = $client->describeMetricCollectionTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Metrics => (array<associative-array>)

  One or more metrics.

  - (associative-array)

    Describes a metric.

    - Metric => (string)

      The metric.

      - GroupMinSize

      - GroupMaxSize

      - GroupDesiredCapacity

      - GroupInServiceInstances

      - GroupPendingInstances

      - GroupStandbyInstances

      - GroupTerminatingInstances

      - GroupTotalInstances

- Granularities => (array<associative-array>)

  The granularities for the metrics.

  - (associative-array)

    Describes a granularity of a metric.

    - Granularity => (string)

      The granularity. The only valid value is 1Minute.

# `public `Guzzle\Service\Resource\Model``
`describeNotificationConfigurations( array $args = array() )`

Executes the DescribeNotificationConfigurations operation.

Describes the notification actions associated with the specified Auto Scaling group.

#### Examples

- Basic formatting example

      $result = $client->describeNotificationConfigurations(array(
          'AutoScalingGroupNames' => array('string', ... ),
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupNames => (array<string>)

    The name of the group.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- NotificationConfigurations => (array<associative-array>)

  The notification configurations.

  - (associative-array)

    Describes a notification.

    - AutoScalingGroupName => (string)

      The name of the group.

    - TopicARN => (string)

      The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic.

    - NotificationType => (string)

      The types of events for an action to start.

      - autoscaling:EC2_INSTANCE_LAUNCH

      - autoscaling:EC2_INSTANCE_LAUNCH_ERROR

      - autoscaling:EC2_INSTANCE_TERMINATE

      - autoscaling:EC2_INSTANCE_TERMINATE_ERROR

      - autoscaling:TEST_NOTIFICATION

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describePolicies( array $args = array() )`

Executes the DescribePolicies operation.

Describes the policies for the specified Auto Scaling group.

#### Examples

- Basic formatting example

      $result = $client->describePolicies(array(
          'AutoScalingGroupName' => 'string',
          'PolicyNames' => array('string', ... ),
          'PolicyTypes' => array('string', ... ),
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - PolicyNames => (array<string>)

    One or more policy names or policy ARNs to be described. If you omit this list, all policy names are described. If an group name is provided, the results are limited to that group. This list is limited to 50 items. If you specify an unknown policy name, it is ignored with no error.

  - PolicyTypes => (array<string>)

    One or more policy types. Valid values are SimpleScaling and StepScaling.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to be returned with each call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- ScalingPolicies => (array<associative-array>)

  The scaling policies.

  - (associative-array)

    Describes a scaling policy.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group associated with this scaling policy.

    - PolicyName => (string)

      The name of the scaling policy.

    - PolicyARN => (string)

      The Amazon Resource Name (ARN) of the policy.

    - PolicyType => (string)

      The policy type. Valid values are SimpleScaling and StepScaling.

    - AdjustmentType => (string)

      The adjustment type, which specifies how ScalingAdjustment is interpreted. Valid values are ChangeInCapacity, ExactCapacity, and PercentChangeInCapacity.

    - MinAdjustmentStep => (int)

      Available for backward compatibility. Use MinAdjustmentMagnitude instead.

    - MinAdjustmentMagnitude => (int)

      The minimum number of instances to scale. If the value of AdjustmentType is PercentChangeInCapacity, the scaling policy changes the DesiredCapacity of the Auto Scaling group by at least this many instances. Otherwise, the error is ValidationError.

    - ScalingAdjustment => (int)

      The amount by which to scale, based on the specified adjustment type. A positive value adds to the current capacity while a negative number removes from the current capacity.

    - Cooldown => (int)

      The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start.

    - StepAdjustments => (array<associative-array>)

      A set of adjustments that enable you to scale based on the size of the alarm breach.

      - (associative-array)

        Describes an adjustment based on the difference between the value of the aggregated CloudWatch metric and the breach threshold that you've defined for the alarm.

        For the following examples, suppose that you have an alarm with a breach threshold of 50:

        - If you want the adjustment to be triggered when the metric is greater than or equal to 50 and less than 60, specify a lower bound of 0 and an upper bound of 10.

        - If you want the adjustment to be triggered when the metric is greater than 40 and less than or equal to 50, specify a lower bound of -10 and an upper bound of 0.

        There are a few rules for the step adjustments for your step policy:

        - The ranges of your step adjustments can't overlap or have a gap.

        - At most one step adjustment can have a null lower bound. If one step adjustment has a negative lower bound, then there must be a step adjustment with a null lower bound.

        - At most one step adjustment can have a null upper bound. If one step adjustment has a positive upper bound, then there must be a step adjustment with a null upper bound.

        - The upper and lower bound can't be null in the same step adjustment.

        - MetricIntervalLowerBound => (int)

          The lower bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the lower bound is inclusive (the metric must be greater than or equal to the threshold plus the lower bound). Otherwise, it is exclusive (the metric must be greater than the threshold plus the lower bound). A null value indicates negative infinity.

        - MetricIntervalUpperBound => (int)

          The upper bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the upper bound is exclusive (the metric must be less than the threshold plus the upper bound). Otherwise, it is inclusive (the metric must be less than or equal to the threshold plus the upper bound). A null value indicates positive infinity.

          The upper bound must be greater than the lower bound.

        - ScalingAdjustment => (int)

          The amount by which to scale, based on the specified adjustment type. A positive value adds to the current capacity while a negative number removes from the current capacity.

    - MetricAggregationType => (string)

      The aggregation type for the CloudWatch metrics. Valid values are Minimum, Maximum, and Average.

    - EstimatedInstanceWarmup => (int)

      The estimated time, in seconds, until a newly launched instance can contribute to the CloudWatch metrics.

    - Alarms => (array<associative-array>)

      The CloudWatch alarms related to the policy.

      - (associative-array)

        Describes an alarm.

        - AlarmName => (string)

          The name of the alarm.

        - AlarmARN => (string)

          The Amazon Resource Name (ARN) of the alarm.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeScalingActivities( array $args = array() )`

Executes the DescribeScalingActivities operation.

Describes one or more scaling activities for the specified Auto Scaling group. If you omit the ActivityIds , the call returns all activities from the past six weeks. Activities are sorted by the start time. Activities still in progress appear first on the list.

#### Examples

- Basic formatting example

      $result = $client->describeScalingActivities(array(
          'ActivityIds' => array('string', ... ),
          'AutoScalingGroupName' => 'string',
          'MaxRecords' => integer,
          'NextToken' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - ActivityIds => (array<string>)

    The activity IDs of the desired scaling activities. If this list is omitted, all activities are described. If the AutoScalingGroupName parameter is provided, the results are limited to that group. The list of requested activities cannot contain more than 50 items. If unknown activities are requested, they are ignored with no error.

  - AutoScalingGroupName => (string)

    The name of the group.

  - MaxRecords => (int)

    The maximum number of items to return with this call.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Activities => (array<associative-array>)

  The scaling activities.

  - (associative-array)

    Describes scaling activity, which is a long-running process that represents a change to your Auto Scaling group, such as changing its size or replacing an instance.

    - ActivityId => (string)

      The ID of the activity.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group.

    - Description => (string)

      A friendly, more verbose description of the activity.

    - Cause => (string)

      The reason the activity began.

    - StartTime => (string)

      The start time of the activity.

    - EndTime => (string)

      The end time of the activity.

    - StatusCode => (string)

      The current status of the activity.

    - StatusMessage => (string)

      A friendly, more verbose description of the activity status.

    - Progress => (int)

      A value between 0 and 100 that indicates the progress of the activity.

    - Details => (string)

      The details about the activity.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeScalingProcessTypes( array $args = array() )`

Executes the DescribeScalingProcessTypes operation.

Describes the scaling process types for use with ResumeProcesses and SuspendProcesses.

#### Examples

- Basic formatting example

      $result = $client->describeScalingProcessTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Processes => (array<associative-array>)

  The names of the process types.

  - (associative-array)

    Describes a process type.

    For more information, see Auto Scaling Processes in the Auto Scaling Developer Guide.

    - ProcessName => (string)

      The name of the process.

      - Launch

      - Terminate

      - AddToLoadBalancer

      - AlarmNotification

      - AZRebalance

      - HealthCheck

      - ReplaceUnhealthy

      - ScheduledActions

# `public `Guzzle\Service\Resource\Model``
`describeScheduledActions( array $args = array() )`

Executes the DescribeScheduledActions operation.

Describes the actions scheduled for your Auto Scaling group that haven't run. To describe the actions that have already run, use DescribeScalingActivities.

#### Examples

- Basic formatting example

      $result = $client->describeScheduledActions(array(
          'AutoScalingGroupName' => 'string',
          'ScheduledActionNames' => array('string', ... ),
          'StartTime' => 'mixed type: string (date format)|int (unix timestamp)|\DateTime',
          'EndTime' => 'mixed type: string (date format)|int (unix timestamp)|\DateTime',
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - ScheduledActionNames => (array<string>)

    Describes one or more scheduled actions. If you omit this list, the call describes all scheduled actions. If you specify an unknown scheduled action it is ignored with no error.

    You can describe up to a maximum of 50 instances with a single call. If there are more items to return, the call returns a token. To get the next set of items, repeat the call with the returned token in the NextToken parameter.

  - StartTime => (string [date format]|int [unix timestamp]|\DateTime)

    The earliest scheduled start time to return. If scheduled action names are provided, this parameter is ignored.

  - EndTime => (string [date format]|int [unix timestamp]|\DateTime)

    The latest scheduled start time to return. If scheduled action names are provided, this parameter is ignored.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- ScheduledUpdateGroupActions => (array<associative-array>)

  The scheduled actions.

  - (associative-array)

    Describes a scheduled update to an Auto Scaling group.

    - AutoScalingGroupName => (string)

      The name of the group.

    - ScheduledActionName => (string)

      The name of the scheduled action.

    - ScheduledActionARN => (string)

      The Amazon Resource Name (ARN) of the scheduled action.

    - Time => (string)

      This parameter is deprecated; use StartTime instead.

    - StartTime => (string)

      The date and time that the action is scheduled to begin. This date and time can be up to one month in the future.

      When StartTime and EndTime are specified with Recurrence, they form the boundaries of when the recurring action will start and stop.

    - EndTime => (string)

      The date and time that the action is scheduled to end. This date and time can be up to one month in the future.

    - Recurrence => (string)

      The recurring schedule for the action.

    - MinSize => (int)

      The minimum size of the group.

    - MaxSize => (int)

      The maximum size of the group.

    - DesiredCapacity => (int)

      The number of instances you prefer to maintain in the group.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeTags( array $args = array() )`

Executes the DescribeTags operation.

Describes the specified tags.

You can use filters to limit the results. For example, you can query for the tags for a specific Auto Scaling group. You can specify multiple values for a filter. A tag must match at least one of the specified values for it to be included in the results.

You can also specify multiple filters. The result includes information for a particular tag only if it matches all the filters. If there's no match, no special message is returned.

#### Examples

- Basic formatting example

      $result = $client->describeTags(array(
          'Filters' => array(
              array(
                  'Name' => 'string',
                  'Values' => array('string', ... ),
              ),
              // ... repeated
          ),
          'NextToken' => 'string',
          'MaxRecords' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - Filters => (array<associative-array>)

    A filter used to scope the tags to return.

    - (associative-array)

      Describes a filter.

      - Name => (string)

        The name of the filter. The valid values are: "auto-scaling-group", "key", "value", and "propagate-at-launch".

      - Values => (array<string>)

        The value of the filter.

  - NextToken => (string)

    The token for the next set of items to return. (You received this token from a previous call.)

  - MaxRecords => (int)

    The maximum number of items to return with this call.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Tags => (array<associative-array>)

  The tags.

  - (associative-array)

    Describes a tag for an Auto Scaling group.

    - ResourceId => (string)

      The name of the group.

    - ResourceType => (string)

      The type of resource. The only supported value is auto-scaling-group.

    - Key => (string)

      The tag key.

    - Value => (string)

      The tag value.

    - PropagateAtLaunch => (bool)

      Determines whether the tag is added to new instances as they are launched in the group.

- NextToken => (string)

  The token to use when requesting the next set of items. If there are no additional items to return, the string is empty.

# `public `Guzzle\Service\Resource\Model``
`describeTerminationPolicyTypes( array $args = array() )`

Executes the DescribeTerminationPolicyTypes operation.

Describes the termination policies supported by Auto Scaling.

#### Examples

- Basic formatting example

      $result = $client->describeTerminationPolicyTypes(array(
      ));

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- TerminationPolicyTypes => (array<string>)

  The termination policies supported by Auto Scaling (OldestInstance, OldestLaunchConfiguration, NewestInstance, ClosestToNextInstanceHour, and Default).

# `public `Guzzle\Service\Resource\Model``
`detachInstances( array $args = array() )`

Executes the DetachInstances operation.

Removes one or more instances from the specified Auto Scaling group. After the instances are detached, you can manage them independently from the rest of the Auto Scaling group.

For more information, see Detach EC2 Instances from Your Auto Scaling Group in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->detachInstances(array(
          'InstanceIds' => array('string', ... ),
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // ShouldDecrementDesiredCapacity is required
          'ShouldDecrementDesiredCapacity' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceIds => (array<string>)

    One or more instance IDs.

  - AutoScalingGroupName => (string)

    The name of the group.

  - ShouldDecrementDesiredCapacity => (bool)

    If True, the Auto Scaling group decrements the desired capacity value by the number of instances detached.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Activities => (array<associative-array>)

  The activities related to detaching the instances from the Auto Scaling group.

  - (associative-array)

    Describes scaling activity, which is a long-running process that represents a change to your Auto Scaling group, such as changing its size or replacing an instance.

    - ActivityId => (string)

      The ID of the activity.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group.

    - Description => (string)

      A friendly, more verbose description of the activity.

    - Cause => (string)

      The reason the activity began.

    - StartTime => (string)

      The start time of the activity.

    - EndTime => (string)

      The end time of the activity.

    - StatusCode => (string)

      The current status of the activity.

    - StatusMessage => (string)

      A friendly, more verbose description of the activity status.

    - Progress => (int)

      A value between 0 and 100 that indicates the progress of the activity.

    - Details => (string)

      The details about the activity.

# `public `Guzzle\Service\Resource\Model``
`detachLoadBalancers( array $args = array() )`

Executes the DetachLoadBalancers operation.

Removes one or more load balancers from the specified Auto Scaling group.

When you detach a load balancer, it enters the Removing state while deregistering the instances in the group. When all instances are deregistered, then you can no longer describe the load balancer using DescribeLoadBalancers. Note that the instances remain running.

#### Examples

- Basic formatting example

      $result = $client->detachLoadBalancers(array(
          'AutoScalingGroupName' => 'string',
          'LoadBalancerNames' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the group.

  - LoadBalancerNames => (array<string>)

    One or more load balancer names.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`disableMetricsCollection( array $args = array() )`

Executes the DisableMetricsCollection operation.

Disables monitoring of the specified metrics for the specified Auto Scaling group.

#### Examples

- Basic formatting example

      $result = $client->disableMetricsCollection(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'Metrics' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or Amazon Resource Name (ARN) of the group.

  - Metrics => (array<string>)

    One or more metrics. If you omit this parameter, all metrics are disabled.

    - GroupMinSize

    - GroupMaxSize

    - GroupDesiredCapacity

    - GroupInServiceInstances

    - GroupPendingInstances

    - GroupStandbyInstances

    - GroupTerminatingInstances

    - GroupTotalInstances

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`enableMetricsCollection( array $args = array() )`

Executes the EnableMetricsCollection operation.

Enables monitoring of the specified metrics for the specified Auto Scaling group.

You can only enable metrics collection if InstanceMonitoring in the launch configuration for the group is set to True .

#### Examples

- Basic formatting example

      $result = $client->enableMetricsCollection(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'Metrics' => array('string', ... ),
          // Granularity is required
          'Granularity' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or ARN of the Auto Scaling group.

  - Metrics => (array<string>)

    One or more metrics. If you omit this parameter, all metrics are enabled.

    - GroupMinSize

    - GroupMaxSize

    - GroupDesiredCapacity

    - GroupInServiceInstances

    - GroupPendingInstances

    - GroupStandbyInstances

    - GroupTerminatingInstances

    - GroupTotalInstances

    Note that the GroupStandbyInstances metric is not enabled by default. You must explicitly request this metric.

  - Granularity => (string)

    The granularity to associate with the metrics to collect. The only valid value is 1Minute.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`enterStandby( array $args = array() )`

Executes the EnterStandby operation.

Moves the specified instances into Standby mode.

For more information, see Auto Scaling InService State in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->enterStandby(array(
          'InstanceIds' => array('string', ... ),
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // ShouldDecrementDesiredCapacity is required
          'ShouldDecrementDesiredCapacity' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceIds => (array<string>)

    One or more instances to move into Standby mode. You must specify at least one instance ID.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - ShouldDecrementDesiredCapacity => (bool)

    Specifies whether the instances moved to Standby mode count as part of the Auto Scaling group's desired capacity. If set, the desired capacity for the Auto Scaling group decrements by the number of instances moved to Standby mode.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Activities => (array<associative-array>)

  The activities related to moving instances into Standby mode.

  - (associative-array)

    Describes scaling activity, which is a long-running process that represents a change to your Auto Scaling group, such as changing its size or replacing an instance.

    - ActivityId => (string)

      The ID of the activity.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group.

    - Description => (string)

      A friendly, more verbose description of the activity.

    - Cause => (string)

      The reason the activity began.

    - StartTime => (string)

      The start time of the activity.

    - EndTime => (string)

      The end time of the activity.

    - StatusCode => (string)

      The current status of the activity.

    - StatusMessage => (string)

      A friendly, more verbose description of the activity status.

    - Progress => (int)

      A value between 0 and 100 that indicates the progress of the activity.

    - Details => (string)

      The details about the activity.

# `public `Guzzle\Service\Resource\Model``
`executePolicy( array $args = array() )`

Executes the ExecutePolicy operation.

Executes the specified policy.

#### Examples

- Basic formatting example

      $result = $client->executePolicy(array(
          'AutoScalingGroupName' => 'string',
          // PolicyName is required
          'PolicyName' => 'string',
          'HonorCooldown' => true || false,
          'MetricValue' => integer,
          'BreachThreshold' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or Amazon Resource Name (ARN) of the Auto Scaling group.

  - PolicyName => (string)

    The name or ARN of the policy.

  - HonorCooldown => (bool)

    If this parameter is true, Auto Scaling waits for the cooldown period to complete before executing the policy. Otherwise, Auto Scaling executes the policy without waiting for the cooldown period to complete.

    This parameter is not supported if the policy type is StepScaling.

    For more information, see Understanding Auto Scaling Cooldowns in the Auto Scaling Developer Guide.

  - MetricValue => (int)

    The metric value to compare to BreachThreshold. This enables you to execute a policy of type StepScaling and determine which step adjustment to use. For example, if the breach threshold is 50 and you want to use a step adjustment with a lower bound of 0 and an upper bound of 10, you can set the metric value to 59.

    If you specify a metric value that doesn't correspond to a step adjustment for the policy, the call returns an error.

    This parameter is required if the policy type is StepScaling and not supported otherwise.

  - BreachThreshold => (int)

    The breach threshold for the alarm.

    This parameter is required if the policy type is StepScaling and not supported otherwise.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`exitStandby( array $args = array() )`

Executes the ExitStandby operation.

Moves the specified instances out of Standby mode.

For more information, see Auto Scaling InService State in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->exitStandby(array(
          'InstanceIds' => array('string', ... ),
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceIds => (array<string>)

    One or more instance IDs. You must specify at least one instance ID.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Activities => (array<associative-array>)

  The activities related to moving instances out of Standby mode.

  - (associative-array)

    Describes scaling activity, which is a long-running process that represents a change to your Auto Scaling group, such as changing its size or replacing an instance.

    - ActivityId => (string)

      The ID of the activity.

    - AutoScalingGroupName => (string)

      The name of the Auto Scaling group.

    - Description => (string)

      A friendly, more verbose description of the activity.

    - Cause => (string)

      The reason the activity began.

    - StartTime => (string)

      The start time of the activity.

    - EndTime => (string)

      The end time of the activity.

    - StatusCode => (string)

      The current status of the activity.

    - StatusMessage => (string)

      A friendly, more verbose description of the activity status.

    - Progress => (int)

      A value between 0 and 100 that indicates the progress of the activity.

    - Details => (string)

      The details about the activity.

# `public `Guzzle\Service\Resource\Model``
`putLifecycleHook( array $args = array() )`

Executes the PutLifecycleHook operation.

Creates or updates a lifecycle hook for the specified Auto Scaling Group.

A lifecycle hook tells Auto Scaling that you want to perform an action on an instance that is not actively in service; for example, either when the instance launches or before the instance terminates.

This operation is a part of the basic sequence for adding a lifecycle hook to an Auto Scaling group:

1. Create a notification target. A target can be either an Amazon SQS queue or an Amazon SNS topic.
2. Create an IAM role. This role allows Auto Scaling to publish lifecycle notifications to the designated SQS queue or SNS topic.
3. Create the lifecycle hook. You can create a hook that acts when instances launch or when instances terminate.
4. If necessary, record the lifecycle action heartbeat to keep the instance in a pending state.
5. Complete the lifecycle action.

For more information, see Auto Scaling Pending State and Auto Scaling Terminating State in the Auto Scaling Developer Guide.

If you exceed your maximum limit of lifecycle hooks, which by default is 50 per region, the call fails. For information about updating this limit, see AWS Service Limits in the Amazon Web Services General Reference.

#### Examples

- Basic formatting example

      $result = $client->putLifecycleHook(array(
          // LifecycleHookName is required
          'LifecycleHookName' => 'string',
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LifecycleTransition' => 'string',
          'RoleARN' => 'string',
          'NotificationTargetARN' => 'string',
          'NotificationMetadata' => 'string',
          'HeartbeatTimeout' => integer,
          'DefaultResult' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LifecycleHookName => (string)

    The name of the lifecycle hook.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group to which you want to assign the lifecycle hook.

  - LifecycleTransition => (string)

    The instance state to which you want to attach the lifecycle hook. For a list of lifecycle hook types, see DescribeLifecycleHookTypes.

    This parameter is required for new lifecycle hooks, but optional when updating existing hooks.

  - RoleARN => (string)

    The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.

    This parameter is required for new lifecycle hooks, but optional when updating existing hooks.

  - NotificationTargetARN => (string)

    The ARN of the notification target that Auto Scaling will use to notify you when an instance is in the transition state for the lifecycle hook. This ARN target can be either an SQS queue or an SNS topic.

    This parameter is required for new lifecycle hooks, but optional when updating existing hooks.

    The notification message sent to the target will include:

    - LifecycleActionToken. The Lifecycle action token.
    - AccountId. The user account ID.
    - AutoScalingGroupName. The name of the Auto Scaling group.
    - LifecycleHookName. The lifecycle hook name.
    - EC2InstanceId. The EC2 instance ID.
    - LifecycleTransition. The lifecycle transition.
    - NotificationMetadata. The notification metadata.

    This operation uses the JSON format when sending notifications to an Amazon SQS queue, and an email key/value pair format when sending notifications to an Amazon SNS topic.

    When you call this operation, a test message is sent to the notification target. This test message contains an additional key/value pair: Event:autoscaling:TEST_NOTIFICATION.

  - NotificationMetadata => (string)

    Contains additional information that you want to include any time Auto Scaling sends a message to the notification target.

  - HeartbeatTimeout => (int)

    Defines the amount of time, in seconds, that can elapse before the lifecycle hook times out. When the lifecycle hook times out, Auto Scaling performs the action defined in the DefaultResult parameter. You can prevent the lifecycle hook from timing out by calling RecordLifecycleActionHeartbeat. The default value for this parameter is 3600 seconds (1 hour).

  - DefaultResult => (string)

    Defines the action the Auto Scaling group should take when the lifecycle hook timeout elapses or if an unexpected failure occurs. The value for this parameter can be either CONTINUE or ABANDON. The default value for this parameter is ABANDON.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`putNotificationConfiguration( array $args = array() )`

Executes the PutNotificationConfiguration operation.

Configures an Auto Scaling group to send notifications when specified events take place. Subscribers to this topic can have messages for events delivered to an endpoint such as a web server or email address.

For more information see Getting Notifications When Your Auto Scaling Group Changes in the Auto Scaling Developer Guide.

This configuration overwrites an existing configuration.

#### Examples

- Basic formatting example

      $result = $client->putNotificationConfiguration(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // TopicARN is required
          'TopicARN' => 'string',
          // NotificationTypes is required
          'NotificationTypes' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - TopicARN => (string)

    The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic.

  - NotificationTypes => (array<string>)

    The type of event that will cause the notification to be sent. For details about notification types supported by Auto Scaling, see DescribeAutoScalingNotificationTypes.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`putScalingPolicy( array $args = array() )`

Executes the PutScalingPolicy operation.

Creates or updates a policy for an Auto Scaling group. To update an existing policy, use the existing policy name and set the parameters you want to change. Any existing parameter not changed in an update to an existing policy is not changed in this update request.

If you exceed your maximum limit of step adjustments, which by default is 20 per region, the call fails. For information about updating this limit, see AWS Service Limits in the Amazon Web Services General Reference.

#### Examples

- Basic formatting example

      $result = $client->putScalingPolicy(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // PolicyName is required
          'PolicyName' => 'string',
          'PolicyType' => 'string',
          // AdjustmentType is required
          'AdjustmentType' => 'string',
          'MinAdjustmentStep' => integer,
          'MinAdjustmentMagnitude' => integer,
          'ScalingAdjustment' => integer,
          'Cooldown' => integer,
          'MetricAggregationType' => 'string',
          'StepAdjustments' => array(
              array(
                  'MetricIntervalLowerBound' => integer,
                  'MetricIntervalUpperBound' => integer,
                  // ScalingAdjustment is required
                  'ScalingAdjustment' => integer,
              ),
              // ... repeated
          ),
          'EstimatedInstanceWarmup' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or ARN of the group.

  - PolicyName => (string)

    The name of the policy.

  - PolicyType => (string)

    The policy type. Valid values are SimpleScaling and StepScaling. If the policy type is null, the value is treated as SimpleScaling.

  - AdjustmentType => (string)

    The adjustment type. Valid values are ChangeInCapacity, ExactCapacity, and PercentChangeInCapacity.

    For more information, see Dynamic Scaling in the Auto Scaling Developer Guide.

  - MinAdjustmentStep => (int)

    Available for backward compatibility. Use MinAdjustmentMagnitude instead.

  - MinAdjustmentMagnitude => (int)

    The minimum number of instances to scale. If the value of AdjustmentType is PercentChangeInCapacity, the scaling policy changes the DesiredCapacity of the Auto Scaling group by at least this many instances. Otherwise, the error is ValidationError.

  - ScalingAdjustment => (int)

    The amount by which to scale, based on the specified adjustment type. A positive value adds to the current capacity while a negative number removes from the current capacity.

    This parameter is required if the policy type is SimpleScaling and not supported otherwise.

  - Cooldown => (int)

    The amount of time, in seconds, after a scaling activity completes and before the next scaling activity can start. If this parameter is not specified, the default cooldown period for the group applies.

    This parameter is not supported unless the policy type is SimpleScaling.

    For more information, see Understanding Auto Scaling Cooldowns in the Auto Scaling Developer Guide.

  - MetricAggregationType => (string)

    The aggregation type for the CloudWatch metrics. Valid values are Minimum, Maximum, and Average. If the aggregation type is null, the value is treated as Average.

    This parameter is not supported if the policy type is SimpleScaling.

  - StepAdjustments => (array<associative-array>)

    A set of adjustments that enable you to scale based on the size of the alarm breach.

    This parameter is required if the policy type is StepScaling and not supported otherwise.

    - (associative-array)

      Describes an adjustment based on the difference between the value of the aggregated CloudWatch metric and the breach threshold that you've defined for the alarm.

      For the following examples, suppose that you have an alarm with a breach threshold of 50:

      - If you want the adjustment to be triggered when the metric is greater than or equal to 50 and less than 60, specify a lower bound of 0 and an upper bound of 10.

      - If you want the adjustment to be triggered when the metric is greater than 40 and less than or equal to 50, specify a lower bound of -10 and an upper bound of 0.

      There are a few rules for the step adjustments for your step policy:

      - The ranges of your step adjustments can't overlap or have a gap.

      - At most one step adjustment can have a null lower bound. If one step adjustment has a negative lower bound, then there must be a step adjustment with a null lower bound.

      - At most one step adjustment can have a null upper bound. If one step adjustment has a positive upper bound, then there must be a step adjustment with a null upper bound.

      - The upper and lower bound can't be null in the same step adjustment.

      - MetricIntervalLowerBound => (int)

        The lower bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the lower bound is inclusive (the metric must be greater than or equal to the threshold plus the lower bound). Otherwise, it is exclusive (the metric must be greater than the threshold plus the lower bound). A null value indicates negative infinity.

      - MetricIntervalUpperBound => (int)

        The upper bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the upper bound is exclusive (the metric must be less than the threshold plus the upper bound). Otherwise, it is inclusive (the metric must be less than or equal to the threshold plus the upper bound). A null value indicates positive infinity.

        The upper bound must be greater than the lower bound.

      - ScalingAdjustment => (int)

        The amount by which to scale, based on the specified adjustment type. A positive value adds to the current capacity while a negative number removes from the current capacity.

  - EstimatedInstanceWarmup => (int)

    The estimated time, in seconds, until a newly launched instance can contribute to the CloudWatch metrics. The default is to use the value specified for the default cooldown period for the group.

    This parameter is not supported if the policy type is SimpleScaling.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- PolicyARN => (string)

  The Amazon Resource Name (ARN) of the policy.

# `public `Guzzle\Service\Resource\Model``
`putScheduledUpdateGroupAction( array $args = array() )`

Executes the PutScheduledUpdateGroupAction operation.

Creates or updates a scheduled scaling action for an Auto Scaling group. When updating a scheduled scaling action, if you leave a parameter unspecified, the corresponding value remains unchanged in the affected Auto Scaling group.

For more information, see Scheduled Scaling in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->putScheduledUpdateGroupAction(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // ScheduledActionName is required
          'ScheduledActionName' => 'string',
          'Time' => 'mixed type: string (date format)|int (unix timestamp)|\DateTime',
          'StartTime' => 'mixed type: string (date format)|int (unix timestamp)|\DateTime',
          'EndTime' => 'mixed type: string (date format)|int (unix timestamp)|\DateTime',
          'Recurrence' => 'string',
          'MinSize' => integer,
          'MaxSize' => integer,
          'DesiredCapacity' => integer,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or Amazon Resource Name (ARN) of the Auto Scaling group.

  - ScheduledActionName => (string)

    The name of this scaling action.

  - Time => (string [date format]|int [unix timestamp]|\DateTime)

    This parameter is deprecated; use StartTime instead.

    The time for this action to start. If both Time and StartTime are specified, their values must be identical.

  - StartTime => (string [date format]|int [unix timestamp]|\DateTime)

    The time for this action to start, in "YYYY-MM-DDThh:mm:ssZ" format in UTC/GMT only (for example, 2014-06-01T00:00:00Z).

    If you try to schedule your action in the past, Auto Scaling returns an error message.

    When StartTime and EndTime are specified with Recurrence, they form the boundaries of when the recurring action starts and stops.

  - EndTime => (string [date format]|int [unix timestamp]|\DateTime)

    The time for this action to end.

  - Recurrence => (string)

    The time when recurring future actions will start. Start time is specified by the user following the Unix cron syntax format. For more information, see Cron in Wikipedia.

    When StartTime and EndTime are specified with Recurrence, they form the boundaries of when the recurring action will start and stop.

  - MinSize => (int)

    The minimum size for the Auto Scaling group.

  - MaxSize => (int)

    The maximum size for the Auto Scaling group.

  - DesiredCapacity => (int)

    The number of EC2 instances that should be running in the group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`recordLifecycleActionHeartbeat( array $args = array() )`

Executes the RecordLifecycleActionHeartbeat operation.

Records a heartbeat for the lifecycle action associated with a specific token. This extends the timeout by the length of time defined by the HeartbeatTimeout parameter of PutLifecycleHook.

This operation is a part of the basic sequence for adding a lifecycle hook to an Auto Scaling group:

1. Create a notification target. A target can be either an Amazon SQS queue or an Amazon SNS topic.
2. Create an IAM role. This role allows Auto Scaling to publish lifecycle notifications to the designated SQS queue or SNS topic.
3. Create the lifecycle hook. You can create a hook that acts when instances launch or when instances terminate.
4. If necessary, record the lifecycle action heartbeat to keep the instance in a pending state.
5. Complete the lifecycle action.

For more information, see Auto Scaling Pending State and Auto Scaling Terminating State in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->recordLifecycleActionHeartbeat(array(
          // LifecycleHookName is required
          'LifecycleHookName' => 'string',
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LifecycleActionToken' => 'string',
          'InstanceId' => 'string',
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - LifecycleHookName => (string)

    The name of the lifecycle hook.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group for the hook.

  - LifecycleActionToken => (string)

    A token that uniquely identifies a specific lifecycle action associated with an instance. Auto Scaling sends this token to the notification target you specified when you created the lifecycle hook.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`resumeProcesses( array $args = array() )`

Executes the ResumeProcesses operation.

Resumes the specified suspended Auto Scaling processes for the specified Auto Scaling group. To resume specific processes, use the ScalingProcesses parameter. To resume all processes, omit the ScalingProcesses parameter. For more information, see Suspend and Resume Auto Scaling Processes in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->resumeProcesses(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'ScalingProcesses' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or Amazon Resource Name (ARN) of the Auto Scaling group.

  - ScalingProcesses => (array<string>)

    One or more of the following processes:

    - Launch

    - Terminate

    - HealthCheck

    - ReplaceUnhealthy

    - AZRebalance

    - AlarmNotification

    - ScheduledActions

    - AddToLoadBalancer

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`setDesiredCapacity( array $args = array() )`

Executes the SetDesiredCapacity operation.

Sets the size of the specified Auto Scaling group.

For more information about desired capacity, see What Is Auto Scaling? in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->setDesiredCapacity(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          // DesiredCapacity is required
          'DesiredCapacity' => integer,
          'HonorCooldown' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - DesiredCapacity => (int)

    The number of EC2 instances that should be running in the Auto Scaling group.

  - HonorCooldown => (bool)

    By default, SetDesiredCapacity overrides any cooldown period associated with the Auto Scaling group. Specify True to make Auto Scaling to wait for the cool-down period associated with the Auto Scaling group to complete before initiating a scaling activity to set your Auto Scaling group to its new capacity.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`setInstanceHealth( array $args = array() )`

Executes the SetInstanceHealth operation.

Sets the health status of the specified instance.

For more information, see Health Checks in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->setInstanceHealth(array(
          // InstanceId is required
          'InstanceId' => 'string',
          // HealthStatus is required
          'HealthStatus' => 'string',
          'ShouldRespectGracePeriod' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceId => (string)

    The ID of the EC2 instance.

  - HealthStatus => (string)

    The health status of the instance. Set to Healthy if you want the instance to remain in service. Set to Unhealthy if you want the instance to be out of service. Auto Scaling will terminate and replace the unhealthy instance.

  - ShouldRespectGracePeriod => (bool)

    If the Auto Scaling group of the specified instance has a HealthCheckGracePeriod specified for the group, by default, this call will respect the grace period. Set this to False, if you do not want the call to respect the grace period associated with the group.

    For more information, see the HealthCheckGracePeriod parameter description for CreateAutoScalingGroup.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`suspendProcesses( array $args = array() )`

Executes the SuspendProcesses operation.

Suspends the specified Auto Scaling processes for the specified Auto Scaling group. To suspend specific processes, use the ScalingProcesses parameter. To suspend all processes, omit the ScalingProcesses parameter.

Note that if you suspend either the Launch or Terminate process types, it can prevent other process types from functioning properly.

To resume processes that have been suspended, use ResumeProcesses.

For more information, see Suspend and Resume Auto Scaling Processes in the Auto Scaling Developer Guide.

#### Examples

- Basic formatting example

      $result = $client->suspendProcesses(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'ScalingProcesses' => array('string', ... ),
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name or Amazon Resource Name (ARN) of the Auto Scaling group.

  - ScalingProcesses => (array<string>)

    One or more of the following processes:

    - Launch

    - Terminate

    - HealthCheck

    - ReplaceUnhealthy

    - AZRebalance

    - AlarmNotification

    - ScheduledActions

    - AddToLoadBalancer

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\Model``
`terminateInstanceInAutoScalingGroup( array $args = array() )`

Executes the TerminateInstanceInAutoScalingGroup operation.

Terminates the specified instance and optionally adjusts the desired group size.

This call simply makes a termination request. The instances is not terminated immediately.

#### Examples

- Basic formatting example

      $result = $client->terminateInstanceInAutoScalingGroup(array(
          // InstanceId is required
          'InstanceId' => 'string',
          // ShouldDecrementDesiredCapacity is required
          'ShouldDecrementDesiredCapacity' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - InstanceId => (string)

    The ID of the EC2 instance.

  - ShouldDecrementDesiredCapacity => (bool)

    If true, terminating this instance also decrements the size of the Auto Scaling group.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

- Activity => (associative-array)

  A scaling activity.

  - ActivityId => (string)

    The ID of the activity.

  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - Description => (string)

    A friendly, more verbose description of the activity.

  - Cause => (string)

    The reason the activity began.

  - StartTime => (string)

    The start time of the activity.

  - EndTime => (string)

    The end time of the activity.

  - StatusCode => (string)

    The current status of the activity.

  - StatusMessage => (string)

    A friendly, more verbose description of the activity status.

  - Progress => (int)

    A value between 0 and 100 that indicates the progress of the activity.

  - Details => (string)

    The details about the activity.

# `public `Guzzle\Service\Resource\Model``
`updateAutoScalingGroup( array $args = array() )`

Executes the UpdateAutoScalingGroup operation.

Updates the configuration for the specified Auto Scaling group.

To update an Auto Scaling group with a launch configuration with InstanceMonitoring set to False , you must first disable the collection of group metrics. Otherwise, you will get an error. If you have previously enabled the collection of group metrics, you can disable it using DisableMetricsCollection.

The new settings are registered upon the completion of this call. Any launch configuration settings take effect on any triggers after this call returns. Scaling activities that are currently in progress aren't affected.

Note the following:

- If you specify a new value for MinSize without specifying a value for DesiredCapacity , and the new MinSize is larger than the current size of the group, we implicitly call SetDesiredCapacity to set the size of the group to the new value of MinSize .

- If you specify a new value for MaxSize without specifying a value for DesiredCapacity , and the new MaxSize is smaller than the current size of the group, we implicitly call SetDesiredCapacity to set the size of the group to the new value of MaxSize .

- All other optional parameters are left unchanged if not specified.

#### Examples

- Basic formatting example

      $result = $client->updateAutoScalingGroup(array(
          // AutoScalingGroupName is required
          'AutoScalingGroupName' => 'string',
          'LaunchConfigurationName' => 'string',
          'MinSize' => integer,
          'MaxSize' => integer,
          'DesiredCapacity' => integer,
          'DefaultCooldown' => integer,
          'AvailabilityZones' => array('string', ... ),
          'HealthCheckType' => 'string',
          'HealthCheckGracePeriod' => integer,
          'PlacementGroup' => 'string',
          'VPCZoneIdentifier' => 'string',
          'TerminationPolicies' => array('string', ... ),
          'NewInstancesProtectedFromScaleIn' => true || false,
      ));

#### Parameters

$args
  `array`
  $arg Associative array containing the following keys (required keys are bold):
  - AutoScalingGroupName => (string)

    The name of the Auto Scaling group.

  - LaunchConfigurationName => (string)

    The name of the launch configuration.

  - MinSize => (int)

    The minimum size of the Auto Scaling group.

  - MaxSize => (int)

    The maximum size of the Auto Scaling group.

  - DesiredCapacity => (int)

    The number of EC2 instances that should be running in the Auto Scaling group. This number must be greater than or equal to the minimum size of the group and less than or equal to the maximum size of the group.

  - DefaultCooldown => (int)

    The amount of time, in seconds, after a scaling activity completes before another scaling activity can start. For more information, see Understanding Auto Scaling Cooldowns.

  - AvailabilityZones => (array<string>)

    One or more Availability Zones for the group.

  - HealthCheckType => (string)

    The type of health check for the instances in the Auto Scaling group. The health check type can either be EC2 for Amazon EC2 or ELB for Elastic Load Balancing.

  - HealthCheckGracePeriod => (int)

    The amount of time, in seconds, that Auto Scaling waits before checking the health status of an instance. The grace period begins when the instance passes the system status and instance status checks from Amazon EC2. For more information, see .

  - PlacementGroup => (string)

    The name of the placement group into which you'll launch your instances, if any. For more information, see Placement Groups.

  - VPCZoneIdentifier => (string)

    The ID of the subnet, if you are launching into a VPC. You can specify several subnets in a comma-separated list.

    When you specify VPCZoneIdentifier with AvailabilityZones, ensure that the subnets' Availability Zones match the values you specify for AvailabilityZones.

    For more information, see Auto Scaling and Amazon Virtual Private Cloud in the Auto Scaling Developer Guide.

  - TerminationPolicies => (array<string>)

    A standalone termination policy or a list of termination policies used to select the instance to terminate. The policies are executed in the order that they are listed.

    For more information, see Choosing a Termination Policy for Your Auto Scaling Group in the Auto Scaling Developer Guide.

#### Returns

``Guzzle\Service\Resource\Model``
Returns a response Model object

# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeAutoScalingGroupsIterator( array $args = array() )`

The input array uses the parameters of the DescribeAutoScalingGroups operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeAutoScalingInstancesIterator( array $args = array() )`

The input array uses the parameters of the DescribeAutoScalingInstances operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeLaunchConfigurationsIterator( array $args = array() )`

The input array uses the parameters of the DescribeLaunchConfigurations operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeNotificationConfigurationsIterator( array $args = array() )`

The input array uses the parameters of the DescribeNotificationConfigurations operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribePoliciesIterator( array $args = array() )`

The input array uses the parameters of the DescribePolicies operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeScalingActivitiesIterator( array $args = array() )`

The input array uses the parameters of the DescribeScalingActivities operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeScheduledActionsIterator( array $args = array() )`

The input array uses the parameters of the DescribeScheduledActions operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``
# `public `Guzzle\Service\Resource\ResourceIteratorInterface``
`getDescribeTagsIterator( array $args = array() )`

The input array uses the parameters of the DescribeTags operation

#### Parameters

$args
  `array`
  $args

#### Returns

``Guzzle\Service\Resource\ResourceIteratorInterface``

### Methods inherited from Aws\Common\Client\AbstractClient

`__call()`, `__construct()`, `createRequest()`, `getAllEvents()`, `getApiVersion()`, `getCredentials()`, `getRegion()`, `getRegions()`, `getSignature()`, `getWaiter()`, `getWaiterFactory()`, `send()`, `setCredentials()`, `setRegion()`, `setWaiterFactory()`, `waitUntil()`

### Methods inherited from Guzzle\Service\Client

`execute()`, `executeMultiple()`, `getCommand()`, `getCommandFactory()`, `getDescription()`, `getInflector()`, `getIterator()`, `getResourceIteratorFactory()`, `prepareCommand()`, `setCommandFactory()`, `setDescription()`, `setInflector()`, `setResourceIteratorFactory()`

### Methods inherited from Guzzle\Http\Client

`delete()`, `expandTemplate()`, `extractPharCacert()`, `get()`, `getBaseUrl()`, `getConfig()`, `getCurlMulti()`, `getDefaultOption()`, `getDefaultUserAgent()`, `getUriTemplate()`, `head()`, `initSsl()`, `options()`, `patch()`, `post()`, `prepareRequest()`, `put()`, `sendMultiple()`, `setBaseUrl()`, `setConfig()`, `setCurlMulti()`, `setDefaultOption()`, `setRequestFactory()`, `setSslVerification()`, `setUriTemplate()`, `setUserAgent()`

### Methods inherited from Guzzle\Common\AbstractHasDispatcher

`addSubscriber()`, `dispatch()`, `getEventDispatcher()`, `setEventDispatcher()`

### Magic methods summary

## Constants summary

`string` | `LATEST_API_VERSION` | `'2011-01-01'` | #

### Constants inherited from Guzzle\Service\Client

`COMMAND_PARAMS`

### Constants inherited from Guzzle\Http\Client

`CURL_OPTIONS`, `DEFAULT_SELECT_TIMEOUT`, `DISABLE_REDIRECTS`, `MAX_HANDLES`, `REQUEST_OPTIONS`, `SSL_CERT_AUTHORITY`

### Constants inherited from Guzzle\Http\ClientInterface

`CREATE_REQUEST`, `HTTP_DATE`

## Properties summary

### Properties inherited from Aws\Common\Client\AbstractClient

`$aggregator`, `$credentials`, `$signature`, `$waiterFactory`

### Properties inherited from Guzzle\Service\Client

`$commandFactory`, `$inflector`, `$resourceIteratorFactory`, `$serviceDescription`

### Properties inherited from Guzzle\Http\Client

`$defaultHeaders`, `$requestFactory`, `$userAgent`

### Properties inherited from Guzzle\Common\AbstractHasDispatcher

`$eventDispatcher`