DynamoDB CloudFormation Policy for Auto scaling

DynamoDB_CloudFormation_Autoscaling_Policy.json

{
  "Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
  "Properties" : {
    "PolicyName" : "MyScalingPolicy",
    "PolicyType" : "TargetTrackingScaling",
    "ResourceId" : "arn:aws:dynamodb:us-east-1:123456789012:table/books_table",
    "ScalableDimension" : "dynamodb:table:WriteCapacityUnits",
    "ServiceNamespace" : "dynamodb",
    "TargetTrackingScalingPolicyConfiguration" : {
    "PredefinedMetricSpecification": {
			"PredefinedMetricType": "DynamoDBWriteCapacityUtilization"
		},
		"ScaleOutCooldown": 60,
		"ScaleInCooldown": 60,
		"TargetValue": 50.0
	}    
  }
}