Use CloudFormation to create a scaling policy - Amazon SageMaker AI
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Use CloudFormation to create a scaling policy

The following example shows how to configure model auto scaling on an endpoint using CloudFormation.

  Endpoint:
    Type: "AWS::SageMaker::Endpoint"
    Properties:
      EndpointName: yourEndpointName
      EndpointConfigName: yourEndpointConfigName

  ScalingTarget:
    Type: "AWS::ApplicationAutoScaling::ScalableTarget"
    Properties:
      MaxCapacity: 10
      MinCapacity: 2
      ResourceId: endpoint/my-endpoint/variant/my-variant
      RoleARN: arn
      ScalableDimension: sagemaker:variant:DesiredInstanceCount
      ServiceNamespace: sagemaker

  ScalingPolicy:
    Type: "AWS::ApplicationAutoScaling::ScalingPolicy"
    Properties:
      PolicyName: my-scaling-policy
      PolicyType: TargetTrackingScaling
      ScalingTargetId:
        Ref: ScalingTarget
      TargetTrackingScalingPolicyConfiguration:
        TargetValue: 70.0
        ScaleInCooldown: 600
        ScaleOutCooldown: 30
        PredefinedMetricSpecification:
          PredefinedMetricType: SageMakerVariantInvocationsPerInstance

For more information, see Create Application Auto Scaling resources with AWS CloudFormation in the Application Auto Scaling User Guide.