aws-cdk-lib.aws_ecs.RequestCountScalingProps

interface RequestCountScalingProps

LanguageType name
.NETAmazon.CDK.AWS.ECS.RequestCountScalingProps
Gogithub.com/aws/aws-cdk-go/awscdk/v2/awsecs#RequestCountScalingProps
Javasoftware.amazon.awscdk.services.ecs.RequestCountScalingProps
Pythonaws_cdk.aws_ecs.RequestCountScalingProps
TypeScript (source)aws-cdk-lib » aws_ecs » RequestCountScalingProps

The properties for enabling scaling based on Application Load Balancer (ALB) request counts.

Example

declare const target: elbv2.ApplicationTargetGroup;
declare const service: ecs.BaseService;
const scaling = service.autoScaleTaskCount({ maxCapacity: 10 });
scaling.scaleOnCpuUtilization('CpuScaling', {
  targetUtilizationPercent: 50,
});

scaling.scaleOnRequestCount('RequestScaling', {
  requestsPerTarget: 10000,
  targetGroup: target,
});

Properties

NameTypeDescription
requestsPerTargetnumberThe number of ALB requests per target.
targetGroupApplicationTargetGroupThe ALB target group name.
disableScaleIn?booleanIndicates whether scale in by the target tracking policy is disabled.
policyName?stringA name for the scaling policy.
scaleInCooldown?DurationPeriod after a scale in activity completes before another scale in activity can start.
scaleOutCooldown?DurationPeriod after a scale out activity completes before another scale out activity can start.

requestsPerTarget

Type: number

The number of ALB requests per target.


targetGroup

Type: ApplicationTargetGroup

The ALB target group name.


disableScaleIn?

Type: boolean (optional, default: false)

Indicates whether scale in by the target tracking policy is disabled.

If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource.


policyName?

Type: string (optional, default: Automatically generated name.)

A name for the scaling policy.


scaleInCooldown?

Type: Duration (optional, default: Duration.seconds(300) for the following scalable targets: ECS services, Spot Fleet requests, EMR clusters, AppStream 2.0 fleets, Aurora DB clusters, Amazon SageMaker endpoint variants, Custom resources. For all other scalable targets, the default value is Duration.seconds(0): DynamoDB tables, DynamoDB global secondary indexes, Amazon Comprehend document classification endpoints, Lambda provisioned concurrency)

Period after a scale in activity completes before another scale in activity can start.


scaleOutCooldown?

Type: Duration (optional, default: Duration.seconds(300) for the following scalable targets: ECS services, Spot Fleet requests, EMR clusters, AppStream 2.0 fleets, Aurora DB clusters, Amazon SageMaker endpoint variants, Custom resources. For all other scalable targets, the default value is Duration.seconds(0): DynamoDB tables, DynamoDB global secondary indexes, Amazon Comprehend document classification endpoints, Lambda provisioned concurrency)

Period after a scale out activity completes before another scale out activity can start.