Package software.amazon.awscdk.services.applicationautoscaling

Class CfnScalableTarget

java.lang.Object
software.amazon.jsii.JsiiObject
software.constructs.Construct
software.amazon.awscdk.core.Construct
software.amazon.awscdk.core.CfnElement
software.amazon.awscdk.core.CfnRefElement
software.amazon.awscdk.core.CfnResource
software.amazon.awscdk.services.applicationautoscaling.CfnScalableTarget
All Implemented Interfaces:
IConstruct, IDependable, IInspectable, software.amazon.jsii.JsiiSerializable, software.constructs.IConstruct
@Generated(value="jsii-pacmak/1.84.0 (build 5404dcf)", date="2023-06-19T16:30:37.326Z") @Stability(Stable) public class CfnScalableTarget extends CfnResource implements IInspectable
A CloudFormation AWS::ApplicationAutoScaling::ScalableTarget.

The AWS::ApplicationAutoScaling::ScalableTarget resource specifies a resource that Application Auto Scaling can scale, such as an AWS::DynamoDB::Table or AWS::ECS::Service resource.

For more information, see Getting started in the Application Auto Scaling User Guide .

If the resource that you want Application Auto Scaling to scale is not yet created in your account, add a dependency on the resource when registering it as a scalable target using the DependsOn attribute.

Example: 

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.applicationautoscaling.*;
 CfnScalableTarget cfnScalableTarget = CfnScalableTarget.Builder.create(this, "MyCfnScalableTarget")
         .maxCapacity(123)
         .minCapacity(123)
         .resourceId("resourceId")
         .roleArn("roleArn")
         .scalableDimension("scalableDimension")
         .serviceNamespace("serviceNamespace")
         // the properties below are optional
         .scheduledActions(List.of(ScheduledActionProperty.builder()
                 .schedule("schedule")
                 .scheduledActionName("scheduledActionName")
                 // the properties below are optional
                 .endTime(new Date())
                 .scalableTargetAction(ScalableTargetActionProperty.builder()
                         .maxCapacity(123)
                         .minCapacity(123)
                         .build())
                 .startTime(new Date())
                 .timezone("timezone")
                 .build()))
         .suspendedState(SuspendedStateProperty.builder()
                 .dynamicScalingInSuspended(false)
                 .dynamicScalingOutSuspended(false)
                 .scheduledScalingSuspended(false)
                 .build())
         .build();

  • Field Details

    • CFN_RESOURCE_TYPE_NAME

      @Stability(Stable) public static final String CFN_RESOURCE_TYPE_NAME
      The CloudFormation resource type name for this resource class.

  • Constructor Details

    • CfnScalableTarget

      protected CfnScalableTarget(software.amazon.jsii.JsiiObjectRef objRef)

    • CfnScalableTarget

      protected CfnScalableTarget(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)

    • CfnScalableTarget

      @Stability(Stable) public CfnScalableTarget(@NotNull Construct scope, @NotNull String id, @NotNull CfnScalableTargetProps props)
      Create a new AWS::ApplicationAutoScaling::ScalableTarget.

      Parameters:
      scope -
      • scope in which this resource is defined.
      This parameter is required.
      id -
      • scoped id of the resource.
      This parameter is required.
      props -
      • resource properties.
      This parameter is required.

  • Method Details

    • inspect

      @Stability(Stable) public void inspect(@NotNull TreeInspector inspector)
      Examines the CloudFormation resource and discloses attributes.

      Specified by:
      inspect in interface IInspectable
      Parameters:
      inspector -
      • tree inspector to collect and process attributes.
      This parameter is required.

    • renderProperties

      @Stability(Stable) @NotNull protected Map<String,Object> renderProperties(@NotNull Map<String,Object> props)
      Overrides:
      renderProperties in class CfnResource
      Parameters:
      props - This parameter is required.

    • getCfnProperties

      @Stability(Stable) @NotNull protected Map<String,Object> getCfnProperties()
      Overrides:
      getCfnProperties in class CfnResource

    • getMaxCapacity

      @Stability(Stable) @NotNull public Number getMaxCapacity()
      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.

    • setMaxCapacity

      @Stability(Stable) public void setMaxCapacity(@NotNull Number value)
      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.

    • getMinCapacity

      @Stability(Stable) @NotNull public Number getMinCapacity()
      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.

    • setMinCapacity

      @Stability(Stable) public void setMinCapacity(@NotNull Number value)
      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.

    • getResourceId

      @Stability(Stable) @NotNull public String getResourceId()
      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 .
      • SageMaker Serverless endpoint - The resource type is variant and the unique identifier is the resource ID. Example: endpoint/my-end-point/variant/KMeansClustering .

    • setResourceId

      @Stability(Stable) public void setResourceId(@NotNull String value)
      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 .
      • SageMaker Serverless endpoint - The resource type is variant and the unique identifier is the resource ID. Example: endpoint/my-end-point/variant/KMeansClustering .

    • getRoleArn

      @Stability(Stable) @NotNull public String getRoleArn()
      Specify the Amazon Resource Name (ARN) of an Identity and Access Management (IAM) role that allows Application Auto Scaling to modify the scalable target on your behalf.

      This can be either an IAM service role that Application Auto Scaling can assume to make calls to other AWS resources on your behalf, or a service-linked role for the specified service. For more information, see How Application Auto Scaling works with IAM in the Application Auto Scaling User Guide .

      To automatically create a service-linked role (recommended), specify the full ARN of the service-linked role in your stack template. To find the exact ARN of the service-linked role for your AWS or custom resource, see the Service-linked roles topic in the Application Auto Scaling User Guide . Look for the ARN in the table at the bottom of the page.

    • setRoleArn

      @Stability(Stable) public void setRoleArn(@NotNull String value)
      Specify the Amazon Resource Name (ARN) of an Identity and Access Management (IAM) role that allows Application Auto Scaling to modify the scalable target on your behalf.

      This can be either an IAM service role that Application Auto Scaling can assume to make calls to other AWS resources on your behalf, or a service-linked role for the specified service. For more information, see How Application Auto Scaling works with IAM in the Application Auto Scaling User Guide .

      To automatically create a service-linked role (recommended), specify the full ARN of the service-linked role in your stack template. To find the exact ARN of the service-linked role for your AWS or custom resource, see the Service-linked roles topic in the Application Auto Scaling User Guide . Look for the ARN in the table at the bottom of the page.

    • getScalableDimension

      @Stability(Stable) @NotNull public String getScalableDimension()
      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.
      • sagemaker:variant:DesiredProvisionedConcurrency - The provisioned concurrency for a SageMaker Serverless endpoint.

    • setScalableDimension

      @Stability(Stable) public void setScalableDimension(@NotNull String value)
      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.
      • sagemaker:variant:DesiredProvisionedConcurrency - The provisioned concurrency for a SageMaker Serverless endpoint.

    • getServiceNamespace

      @Stability(Stable) @NotNull public String getServiceNamespace()
      The namespace of the AWS service that provides the resource, or a custom-resource .

    • setServiceNamespace

      @Stability(Stable) public void setServiceNamespace(@NotNull String value)
      The namespace of the AWS service that provides the resource, or a custom-resource .

    • getScheduledActions

      @Stability(Stable) @Nullable public Object getScheduledActions()
      The scheduled actions for the scalable target.

      Duplicates aren't allowed.

    • setScheduledActions

      @Stability(Stable) public void setScheduledActions(@Nullable IResolvable value)
      The scheduled actions for the scalable target.

      Duplicates aren't allowed.

    • setScheduledActions

      @Stability(Stable) public void setScheduledActions(@Nullable List<Object> value)
      The scheduled actions for the scalable target.

      Duplicates aren't allowed.

    • getSuspendedState

      @Stability(Stable) @Nullable public Object getSuspendedState()
      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.

    • setSuspendedState

      @Stability(Stable) public void setSuspendedState(@Nullable IResolvable value)
      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.

    • setSuspendedState

      @Stability(Stable) public void setSuspendedState(@Nullable CfnScalableTarget.SuspendedStateProperty value)
      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.