class Aws::AutoScaling::Types::PredefinedMetricSpecification

Represents a predefined metric for a target tracking scaling policy to use with Amazon EC2 Auto Scaling.

@note When making an API call, you may pass PredefinedMetricSpecification

data as a hash:

    {
      predefined_metric_type: "ASGAverageCPUUtilization", # required, accepts ASGAverageCPUUtilization, ASGAverageNetworkIn, ASGAverageNetworkOut, ALBRequestCountPerTarget
      resource_label: "XmlStringMaxLen1023",
    }

@!attribute [rw] predefined_metric_type

The metric type. The following predefined metrics are available:

* `ASGAverageCPUUtilization` - Average CPU utilization of the Auto
  Scaling group.

* `ASGAverageNetworkIn` - Average number of bytes received on all
  network interfaces by the Auto Scaling group.

* `ASGAverageNetworkOut` - Average number of bytes sent out on all
  network interfaces by the Auto Scaling group.

* `ALBRequestCountPerTarget` - Number of requests completed per
  target in an Application Load Balancer target group.
@return [String]

@!attribute [rw] resource_label

A label that uniquely identifies a specific Application Load
Balancer target group from which to determine the average request
count served by your Auto Scaling group. You can't specify a
resource label unless the target group is attached to the Auto
Scaling group.

You create the resource label by appending the final portion of the
load balancer ARN and the final portion of the target group ARN into
a single value, separated by a forward slash (/). The format of the
resource label is:

`app/my-alb/778d41231b141a0f/targetgroup/my-alb-target-group/943f017f100becff`.

Where:

* app/<load-balancer-name>/<load-balancer-id> is the
  final portion of the load balancer ARN

* targetgroup/<target-group-name>/<target-group-id> is
  the final portion of the target group ARN.

To find the ARN for an Application Load Balancer, use the
[DescribeLoadBalancers][1] API operation. To find the ARN for the
target group, use the [DescribeTargetGroups][2] API operation.

[1]: https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeLoadBalancers.html
[2]: https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeTargetGroups.html
@return [String]

@see docs.aws.amazon.com/goto/WebAPI/autoscaling-2011-01-01/PredefinedMetricSpecification AWS API Documentation

Constants

SENSITIVE