PutScalingPolicyResponse

The following example applies a target tracking scaling policy with a predefined metric specification to an Amazon ECS service called web-app in the default cluster. The policy keeps the average CPU utilization of the service at 75 percent, with scale-out and scale-in cooldown periods of 60 seconds.

To apply a target tracking scaling policy with a predefined metric specification

var client = new AmazonApplicationAutoScalingClient();
var response = client.PutScalingPolicy(new PutScalingPolicyRequest 
{
    PolicyName = "cpu75-target-tracking-scaling-policy",
    PolicyType = "TargetTrackingScaling",
    ResourceId = "service/default/web-app",
    ScalableDimension = "ecs:service:DesiredCount",
    ServiceNamespace = "ecs",
    TargetTrackingScalingPolicyConfiguration = new TargetTrackingScalingPolicyConfiguration {
        PredefinedMetricSpecification = new PredefinedMetricSpecification { PredefinedMetricType = "ECSServiceAverageCPUUtilization" },
        ScaleInCooldown = 60,
        ScaleOutCooldown = 60,
        TargetValue = 75
    }
});

List<Alarm> alarms = response.Alarms;
string policyARN = response.PolicyARN;