Application Auto Scaling

Returns all the tags on the specified Application Auto Scaling scalable target.

For general information about tags, including the format and syntax, see Tagging Amazon Web Services resources in the Amazon Web Services General Reference .

See also: AWS API Documentation

Request Syntax

client.list_tags_for_resource(
    ResourceARN='string'
)

type ResourceARN

string

param ResourceARN

[REQUIRED]

Specify the ARN of the scalable target.

For example: arn:aws:application-autoscaling:us-east-1:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123

To get the ARN for a scalable target, use DescribeScalableTargets .

rtype

dict

returns

Response Syntax

{
    'Tags': {
        'string': 'string'
    }
}

Response Structure

• (dict) --

  • Tags (dict) --

    A list of tags. Each tag consists of a tag key and a tag value.

    • (string) --

      • (string) --

Adds or edits tags on an Application Auto Scaling scalable target.

Each tag consists of a tag key and a tag value, which are both case-sensitive strings. To add a tag, specify a new tag key and a tag value. To edit a tag, specify an existing tag key and a new tag value.

You can use this operation to tag an Application Auto Scaling scalable target, but you cannot tag a scaling policy or scheduled action.

You can also add tags to an Application Auto Scaling scalable target while creating it (RegisterScalableTarget ).

For general information about tags, including the format and syntax, see Tagging Amazon Web Services resources in the Amazon Web Services General Reference .

Use tags to control access to a scalable target. For more information, see Tagging support for Application Auto Scaling in the Application Auto Scaling User Guide .

See also: AWS API Documentation

Request Syntax

client.tag_resource(
    ResourceARN='string',
    Tags={
        'string': 'string'
    }
)

type ResourceARN

string

param ResourceARN

[REQUIRED]

Identifies the Application Auto Scaling scalable target that you want to apply tags to.

For example: arn:aws:application-autoscaling:us-east-1:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123

To get the ARN for a scalable target, use DescribeScalableTargets .

type Tags

dict

param Tags

[REQUIRED]

The tags assigned to the resource. A tag is a label that you assign to an AWS resource.

Each tag consists of a tag key and a tag value.

You cannot have more than one tag on an Application Auto Scaling scalable target with the same tag key. If you specify an existing tag key with a different tag value, Application Auto Scaling replaces the current tag value with the specified one.

For information about the rules that apply to tag keys and tag values, see User-defined tag restrictions in the Amazon Web Services Billing and Cost Management User Guide .

• (string) --

  • (string) --

rtype

dict

returns

Response Syntax

{}

Response Structure

• (dict) --

Deletes tags from an Application Auto Scaling scalable target. To delete a tag, specify the tag key and the Application Auto Scaling scalable target.

See also: AWS API Documentation

Request Syntax

client.untag_resource(
    ResourceARN='string',
    TagKeys=[
        'string',
    ]
)

type ResourceARN

string

param ResourceARN

[REQUIRED]

Identifies the Application Auto Scaling scalable target from which to remove tags.

For example: arn:aws:application-autoscaling:us-east-1:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123

To get the ARN for a scalable target, use DescribeScalableTargets .

type TagKeys

list

param TagKeys

[REQUIRED]

One or more tag keys. Specify only the tag keys, not the tag values.

• (string) --

rtype

dict

returns

Response Syntax

{}

Response Structure

• (dict) --

{'ScalableTargets': {'ScalableTargetARN': 'string'}}

Gets information about the scalable targets in the specified namespace.

You can filter the results using ResourceIds and ScalableDimension .

See also: AWS API Documentation

Request Syntax

client.describe_scalable_targets(
    ServiceNamespace='ecs'|'elasticmapreduce'|'ec2'|'appstream'|'dynamodb'|'rds'|'sagemaker'|'custom-resource'|'comprehend'|'lambda'|'cassandra'|'kafka'|'elasticache'|'neptune',
    ResourceIds=[
        'string',
    ],
    ScalableDimension='ecs:service:DesiredCount'|'ec2:spot-fleet-request:TargetCapacity'|'elasticmapreduce:instancegroup:InstanceCount'|'appstream:fleet:DesiredCapacity'|'dynamodb:table:ReadCapacityUnits'|'dynamodb:table:WriteCapacityUnits'|'dynamodb:index:ReadCapacityUnits'|'dynamodb:index:WriteCapacityUnits'|'rds:cluster:ReadReplicaCount'|'sagemaker:variant:DesiredInstanceCount'|'custom-resource:ResourceType:Property'|'comprehend:document-classifier-endpoint:DesiredInferenceUnits'|'comprehend:entity-recognizer-endpoint:DesiredInferenceUnits'|'lambda:function:ProvisionedConcurrency'|'cassandra:table:ReadCapacityUnits'|'cassandra:table:WriteCapacityUnits'|'kafka:broker-storage:VolumeSize'|'elasticache:replication-group:NodeGroups'|'elasticache:replication-group:Replicas'|'neptune:cluster:ReadReplicaCount',
    MaxResults=123,
    NextToken='string'
)

type ServiceNamespace

string

param ServiceNamespace

[REQUIRED]

The namespace of the Amazon Web Services service that provides the resource. For a resource provided by your own application or service, use custom-resource instead.

type ResourceIds

list

param ResourceIds

The identifier of the resource associated with the scalable target. This string consists of the resource type and unique identifier.

• ECS service - The resource type is service and the unique identifier is the cluster name and service name. Example: service/default/sample-webapp .

• Spot Fleet - The resource type is spot-fleet-request and the unique identifier is the Spot Fleet request ID. Example: spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE .

• EMR cluster - The resource type is instancegroup and the unique identifier is the cluster ID and instance group ID. Example: instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0 .

• AppStream 2.0 fleet - The resource type is fleet and the unique identifier is the fleet name. Example: fleet/sample-fleet .

• DynamoDB table - The resource type is table and the unique identifier is the table name. Example: table/my-table .

• DynamoDB global secondary index - The resource type is index and the unique identifier is the index name. Example: table/my-table/index/my-table-index .

• Aurora DB cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:my-db-cluster .

• SageMaker endpoint variant - The resource type is variant and the unique identifier is the resource ID. Example: endpoint/my-end-point/variant/KMeansClustering .

• Custom resources are not supported with a resource type. This parameter must specify the OutputValue from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our GitHub repository .

• Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE .

• Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE .

• Lambda provisioned concurrency - The resource type is function and the unique identifier is the function name with a function version or alias name suffix that is not $LATEST . Example: function:my-function:prod or function:my-function:1 .

• Amazon Keyspaces table - The resource type is table and the unique identifier is the table name. Example: keyspace/mykeyspace/table/mytable .

• Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5 .

• Amazon ElastiCache replication group - The resource type is replication-group and the unique identifier is the replication group name. Example: replication-group/mycluster .

• Neptune cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:mycluster .

• (string) --

type ScalableDimension

string

param ScalableDimension

The scalable dimension associated with the scalable target. This string consists of the service namespace, resource type, and scaling property. If you specify a scalable dimension, you must also specify a resource ID.

• ecs:service:DesiredCount - The desired task count of an ECS service.

• elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR Instance Group.

• ec2:spot-fleet-request:TargetCapacity - The target capacity of a Spot Fleet.

• appstream:fleet:DesiredCapacity - The desired capacity of an AppStream 2.0 fleet.

• dynamodb:table:ReadCapacityUnits - The provisioned read capacity for a DynamoDB table.

• dynamodb:table:WriteCapacityUnits - The provisioned write capacity for a DynamoDB table.

• dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB global secondary index.

• dynamodb:index:WriteCapacityUnits - The provisioned write capacity for a DynamoDB global secondary index.

• rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.

• sagemaker:variant:DesiredInstanceCount - The number of EC2 instances for a SageMaker model endpoint variant.

• custom-resource:ResourceType:Property - The scalable dimension for a custom resource provided by your own application or service.

• comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend document classification endpoint.

• comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend entity recognizer endpoint.

• lambda:function:ProvisionedConcurrency - The provisioned concurrency for a Lambda function.

• cassandra:table:ReadCapacityUnits - The provisioned read capacity for an Amazon Keyspaces table.

• cassandra:table:WriteCapacityUnits - The provisioned write capacity for an Amazon Keyspaces table.

• kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.

• elasticache:replication-group:NodeGroups - The number of node groups for an Amazon ElastiCache replication group.

• elasticache:replication-group:Replicas - The number of replicas per node group for an Amazon ElastiCache replication group.

• neptune:cluster:ReadReplicaCount - The count of read replicas in an Amazon Neptune DB cluster.

type MaxResults

integer

param MaxResults

The maximum number of scalable targets. This value can be between 1 and 50. The default value is 50.

If this parameter is used, the operation returns up to MaxResults results at a time, along with a NextToken value. To get the next set of results, include the NextToken value in a subsequent call. If this parameter is not used, the operation returns up to 50 results and a NextToken value, if applicable.

type NextToken

string

param NextToken

The token for the next set of results.

rtype

dict

returns

Response Syntax

{
    'ScalableTargets': [
        {
            'ServiceNamespace': 'ecs'|'elasticmapreduce'|'ec2'|'appstream'|'dynamodb'|'rds'|'sagemaker'|'custom-resource'|'comprehend'|'lambda'|'cassandra'|'kafka'|'elasticache'|'neptune',
            'ResourceId': 'string',
            'ScalableDimension': 'ecs:service:DesiredCount'|'ec2:spot-fleet-request:TargetCapacity'|'elasticmapreduce:instancegroup:InstanceCount'|'appstream:fleet:DesiredCapacity'|'dynamodb:table:ReadCapacityUnits'|'dynamodb:table:WriteCapacityUnits'|'dynamodb:index:ReadCapacityUnits'|'dynamodb:index:WriteCapacityUnits'|'rds:cluster:ReadReplicaCount'|'sagemaker:variant:DesiredInstanceCount'|'custom-resource:ResourceType:Property'|'comprehend:document-classifier-endpoint:DesiredInferenceUnits'|'comprehend:entity-recognizer-endpoint:DesiredInferenceUnits'|'lambda:function:ProvisionedConcurrency'|'cassandra:table:ReadCapacityUnits'|'cassandra:table:WriteCapacityUnits'|'kafka:broker-storage:VolumeSize'|'elasticache:replication-group:NodeGroups'|'elasticache:replication-group:Replicas'|'neptune:cluster:ReadReplicaCount',
            'MinCapacity': 123,
            'MaxCapacity': 123,
            'RoleARN': 'string',
            'CreationTime': datetime(2015, 1, 1),
            'SuspendedState': {
                'DynamicScalingInSuspended': True|False,
                'DynamicScalingOutSuspended': True|False,
                'ScheduledScalingSuspended': True|False
            },
            'ScalableTargetARN': 'string'
        },
    ],
    'NextToken': 'string'
}

Response Structure

• (dict) --

  • ScalableTargets (list) --

    The scalable targets that match the request parameters.

    • (dict) --

      Represents a scalable target.

      • ServiceNamespace (string) --

        The namespace of the Amazon Web Services service that provides the resource, or a custom-resource .

      • ResourceId (string) --

        The identifier of the resource associated with the scalable target. This string consists of the resource type and unique identifier.

        • ECS service - The resource type is service and the unique identifier is the cluster name and service name. Example: service/default/sample-webapp .

        • Spot Fleet - The resource type is spot-fleet-request and the unique identifier is the Spot Fleet request ID. Example: spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE .

        • EMR cluster - The resource type is instancegroup and the unique identifier is the cluster ID and instance group ID. Example: instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0 .

        • AppStream 2.0 fleet - The resource type is fleet and the unique identifier is the fleet name. Example: fleet/sample-fleet .

        • DynamoDB table - The resource type is table and the unique identifier is the table name. Example: table/my-table .

        • DynamoDB global secondary index - The resource type is index and the unique identifier is the index name. Example: table/my-table/index/my-table-index .

        • Aurora DB cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:my-db-cluster .

        • SageMaker endpoint variant - The resource type is variant and the unique identifier is the resource ID. Example: endpoint/my-end-point/variant/KMeansClustering .

        • Custom resources are not supported with a resource type. This parameter must specify the OutputValue from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our GitHub repository .

        • Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE .

        • Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE .

        • Lambda provisioned concurrency - The resource type is function and the unique identifier is the function name with a function version or alias name suffix that is not $LATEST . Example: function:my-function:prod or function:my-function:1 .

        • Amazon Keyspaces table - The resource type is table and the unique identifier is the table name. Example: keyspace/mykeyspace/table/mytable .

        • Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5 .

        • Amazon ElastiCache replication group - The resource type is replication-group and the unique identifier is the replication group name. Example: replication-group/mycluster .

        • Neptune cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:mycluster .

      • ScalableDimension (string) --

        The scalable dimension associated with the scalable target. This string consists of the service namespace, resource type, and scaling property.

        • ecs:service:DesiredCount - The desired task count of an ECS service.

        • elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR Instance Group.

        • ec2:spot-fleet-request:TargetCapacity - The target capacity of a Spot Fleet.

        • appstream:fleet:DesiredCapacity - The desired capacity of an AppStream 2.0 fleet.

        • dynamodb:table:ReadCapacityUnits - The provisioned read capacity for a DynamoDB table.

        • dynamodb:table:WriteCapacityUnits - The provisioned write capacity for a DynamoDB table.

        • dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB global secondary index.

        • dynamodb:index:WriteCapacityUnits - The provisioned write capacity for a DynamoDB global secondary index.

        • rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.

        • sagemaker:variant:DesiredInstanceCount - The number of EC2 instances for a SageMaker model endpoint variant.

        • custom-resource:ResourceType:Property - The scalable dimension for a custom resource provided by your own application or service.

        • comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend document classification endpoint.

        • comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend entity recognizer endpoint.

        • lambda:function:ProvisionedConcurrency - The provisioned concurrency for a Lambda function.

        • cassandra:table:ReadCapacityUnits - The provisioned read capacity for an Amazon Keyspaces table.

        • cassandra:table:WriteCapacityUnits - The provisioned write capacity for an Amazon Keyspaces table.

        • kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.

        • elasticache:replication-group:NodeGroups - The number of node groups for an Amazon ElastiCache replication group.

        • elasticache:replication-group:Replicas - The number of replicas per node group for an Amazon ElastiCache replication group.

        • neptune:cluster:ReadReplicaCount - The count of read replicas in an Amazon Neptune DB cluster.

      • MinCapacity (integer) --

        The minimum value to scale to in response to a scale-in activity.

      • MaxCapacity (integer) --

        The maximum value to scale to in response to a scale-out activity.

      • RoleARN (string) --

        The ARN of an IAM role that allows Application Auto Scaling to modify the scalable target on your behalf.

      • CreationTime (datetime) --

        The Unix timestamp for when the scalable target was created.

      • SuspendedState (dict) --

        Specifies whether the scaling activities for a scalable target are in a suspended state.

        • DynamicScalingInSuspended (boolean) --

          Whether scale in by a target tracking scaling policy or a step scaling policy is suspended. Set the value to true if you don't want Application Auto Scaling to remove capacity when a scaling policy is triggered. The default is false .

        • DynamicScalingOutSuspended (boolean) --

          Whether scale out by a target tracking scaling policy or a step scaling policy is suspended. Set the value to true if you don't want Application Auto Scaling to add capacity when a scaling policy is triggered. The default is false .

        • ScheduledScalingSuspended (boolean) --

          Whether scheduled scaling is suspended. Set the value to true if you don't want Application Auto Scaling to add or remove capacity by initiating scheduled actions. The default is false .

      • ScalableTargetARN (string) --

        The ARN of the scalable target.

  • NextToken (string) --

    The token required to get the next set of results. This value is null if there are no more results to return.

{'Tags': {'string': 'string'}}

{'ScalableTargetARN': 'string'}

Registers or updates a scalable target, which is the resource that you want to scale.

Scalable targets are uniquely identified by the combination of resource ID, scalable dimension, and namespace, which represents some capacity dimension of the underlying service.

When you register a new scalable target, you must specify values for the minimum and maximum capacity. If the specified resource is not active in the target service, this operation does not change the resource's current capacity. Otherwise, it changes the resource's current capacity to a value that is inside of this range.

If you add a scaling policy, current capacity is adjustable within the specified range when scaling starts. Application Auto Scaling scaling policies will not scale capacity to values that are outside of the minimum and maximum range.

After you register a scalable target, you do not need to register it again to use other Application Auto Scaling operations. To see which resources have been registered, use DescribeScalableTargets . You can also view the scaling policies for a service namespace by using DescribeScalableTargets . If you no longer need a scalable target, you can deregister it by using DeregisterScalableTarget .

To update a scalable target, specify the parameters that you want to change. Include the parameters that identify the scalable target: resource ID, scalable dimension, and namespace. Any parameters that you don't specify are not changed by this update request.

See also: AWS API Documentation

Request Syntax

client.register_scalable_target(
    ServiceNamespace='ecs'|'elasticmapreduce'|'ec2'|'appstream'|'dynamodb'|'rds'|'sagemaker'|'custom-resource'|'comprehend'|'lambda'|'cassandra'|'kafka'|'elasticache'|'neptune',
    ResourceId='string',
    ScalableDimension='ecs:service:DesiredCount'|'ec2:spot-fleet-request:TargetCapacity'|'elasticmapreduce:instancegroup:InstanceCount'|'appstream:fleet:DesiredCapacity'|'dynamodb:table:ReadCapacityUnits'|'dynamodb:table:WriteCapacityUnits'|'dynamodb:index:ReadCapacityUnits'|'dynamodb:index:WriteCapacityUnits'|'rds:cluster:ReadReplicaCount'|'sagemaker:variant:DesiredInstanceCount'|'custom-resource:ResourceType:Property'|'comprehend:document-classifier-endpoint:DesiredInferenceUnits'|'comprehend:entity-recognizer-endpoint:DesiredInferenceUnits'|'lambda:function:ProvisionedConcurrency'|'cassandra:table:ReadCapacityUnits'|'cassandra:table:WriteCapacityUnits'|'kafka:broker-storage:VolumeSize'|'elasticache:replication-group:NodeGroups'|'elasticache:replication-group:Replicas'|'neptune:cluster:ReadReplicaCount',
    MinCapacity=123,
    MaxCapacity=123,
    RoleARN='string',
    SuspendedState={
        'DynamicScalingInSuspended': True|False,
        'DynamicScalingOutSuspended': True|False,
        'ScheduledScalingSuspended': True|False
    },
    Tags={
        'string': 'string'
    }
)

type ServiceNamespace

string

param ServiceNamespace

[REQUIRED]

The namespace of the Amazon Web Services service that provides the resource. For a resource provided by your own application or service, use custom-resource instead.

type ResourceId

string

param ResourceId

[REQUIRED]

The identifier of the resource that is associated with the scalable target. This string consists of the resource type and unique identifier.

• ECS service - The resource type is service and the unique identifier is the cluster name and service name. Example: service/default/sample-webapp .

• Spot Fleet - The resource type is spot-fleet-request and the unique identifier is the Spot Fleet request ID. Example: spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE .

• EMR cluster - The resource type is instancegroup and the unique identifier is the cluster ID and instance group ID. Example: instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0 .

• AppStream 2.0 fleet - The resource type is fleet and the unique identifier is the fleet name. Example: fleet/sample-fleet .

• DynamoDB table - The resource type is table and the unique identifier is the table name. Example: table/my-table .

• DynamoDB global secondary index - The resource type is index and the unique identifier is the index name. Example: table/my-table/index/my-table-index .

• Aurora DB cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:my-db-cluster .

• SageMaker endpoint variant - The resource type is variant and the unique identifier is the resource ID. Example: endpoint/my-end-point/variant/KMeansClustering .

• Custom resources are not supported with a resource type. This parameter must specify the OutputValue from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our GitHub repository .

• Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE .

• Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE .

• Lambda provisioned concurrency - The resource type is function and the unique identifier is the function name with a function version or alias name suffix that is not $LATEST . Example: function:my-function:prod or function:my-function:1 .

• Amazon Keyspaces table - The resource type is table and the unique identifier is the table name. Example: keyspace/mykeyspace/table/mytable .

• Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5 .

• Amazon ElastiCache replication group - The resource type is replication-group and the unique identifier is the replication group name. Example: replication-group/mycluster .

• Neptune cluster - The resource type is cluster and the unique identifier is the cluster name. Example: cluster:mycluster .

type ScalableDimension

string

param ScalableDimension

[REQUIRED]

The scalable dimension associated with the scalable target. This string consists of the service namespace, resource type, and scaling property.

• ecs:service:DesiredCount - The desired task count of an ECS service.

• elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR Instance Group.

• ec2:spot-fleet-request:TargetCapacity - The target capacity of a Spot Fleet.

• appstream:fleet:DesiredCapacity - The desired capacity of an AppStream 2.0 fleet.

• dynamodb:table:ReadCapacityUnits - The provisioned read capacity for a DynamoDB table.

• dynamodb:table:WriteCapacityUnits - The provisioned write capacity for a DynamoDB table.

• dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB global secondary index.

• dynamodb:index:WriteCapacityUnits - The provisioned write capacity for a DynamoDB global secondary index.

• rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.

• sagemaker:variant:DesiredInstanceCount - The number of EC2 instances for a SageMaker model endpoint variant.

• custom-resource:ResourceType:Property - The scalable dimension for a custom resource provided by your own application or service.

• comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend document classification endpoint.

• comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of inference units for an Amazon Comprehend entity recognizer endpoint.

• lambda:function:ProvisionedConcurrency - The provisioned concurrency for a Lambda function.

• cassandra:table:ReadCapacityUnits - The provisioned read capacity for an Amazon Keyspaces table.

• cassandra:table:WriteCapacityUnits - The provisioned write capacity for an Amazon Keyspaces table.

• kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.

• elasticache:replication-group:NodeGroups - The number of node groups for an Amazon ElastiCache replication group.

• elasticache:replication-group:Replicas - The number of replicas per node group for an Amazon ElastiCache replication group.

• neptune:cluster:ReadReplicaCount - The count of read replicas in an Amazon Neptune DB cluster.

type MinCapacity

integer

param MinCapacity

The minimum value that you plan to scale in to. When a scaling policy is in effect, Application Auto Scaling can scale in (contract) as needed to the minimum capacity limit in response to changing demand. This property is required when registering a new scalable target.

For the following resources, the minimum value allowed is 0.

• AppStream 2.0 fleets

• Aurora DB clusters

• ECS services

• EMR clusters

• Lambda provisioned concurrency

• SageMaker endpoint variants

• Spot Fleets

• custom resources

It's strongly recommended that you specify a value greater than 0. A value greater than 0 means that data points are continuously reported to CloudWatch that scaling policies can use to scale on a metric like average CPU utilization.

For all other resources, the minimum allowed value depends on the type of resource that you are using. If you provide a value that is lower than what a resource can accept, an error occurs. In which case, the error message will provide the minimum value that the resource can accept.

type MaxCapacity

integer

param MaxCapacity

The maximum value that you plan to scale out to. When a scaling policy is in effect, Application Auto Scaling can scale out (expand) as needed to the maximum capacity limit in response to changing demand. This property is required when registering a new scalable target.

Although you can specify a large maximum capacity, note that service quotas might impose lower limits. Each service has its own default quotas for the maximum capacity of the resource. If you want to specify a higher limit, you can request an increase. For more information, consult the documentation for that service. For information about the default quotas for each service, see Service endpoints and quotas in the Amazon Web Services General Reference .

type RoleARN

string

param RoleARN

This parameter is required for services that do not support service-linked roles (such as Amazon EMR), and it must specify the ARN of an IAM role that allows Application Auto Scaling to modify the scalable target on your behalf.

If the service supports service-linked roles, Application Auto Scaling uses a service-linked role, which it creates if it does not yet exist. For more information, see Application Auto Scaling IAM roles .

type SuspendedState

dict

param SuspendedState

An embedded object that contains attributes and attribute values that are used to suspend and resume automatic scaling. Setting the value of an attribute to true suspends the specified scaling activities. Setting it to false (default) resumes the specified scaling activities.

Suspension Outcomes

• For DynamicScalingInSuspended , while a suspension is in effect, all scale-in activities that are triggered by a scaling policy are suspended.

• For DynamicScalingOutSuspended , while a suspension is in effect, all scale-out activities that are triggered by a scaling policy are suspended.

• For ScheduledScalingSuspended , while a suspension is in effect, all scaling activities that involve scheduled actions are suspended.

For more information, see Suspending and resuming scaling in the Application Auto Scaling User Guide .

• DynamicScalingInSuspended (boolean) --

  Whether scale in by a target tracking scaling policy or a step scaling policy is suspended. Set the value to true if you don't want Application Auto Scaling to remove capacity when a scaling policy is triggered. The default is false .

• DynamicScalingOutSuspended (boolean) --

  Whether scale out by a target tracking scaling policy or a step scaling policy is suspended. Set the value to true if you don't want Application Auto Scaling to add capacity when a scaling policy is triggered. The default is false .

• ScheduledScalingSuspended (boolean) --

  Whether scheduled scaling is suspended. Set the value to true if you don't want Application Auto Scaling to add or remove capacity by initiating scheduled actions. The default is false .

type Tags

dict

param Tags

Assigns one or more tags to the scalable target. Use this parameter to tag the scalable target when it is created. To tag an existing scalable target, use the TagResource operation.

Each tag consists of a tag key and a tag value. Both the tag key and the tag value are required. You cannot have more than one tag on a scalable target with the same tag key.

Use tags to control access to a scalable target. For more information, see Tagging support for Application Auto Scaling in the Application Auto Scaling User Guide .

• (string) --

  • (string) --

rtype

dict

returns

Response Syntax

{
    'ScalableTargetARN': 'string'
}

Response Structure

• (dict) --

  • ScalableTargetARN (string) --

    The ARN of the scalable target.