Use DescribeScalableTargets with an AWS SDK or CLI

To describe scalable targets

The following describe-scalable-targets example describes the scalable targets for the ecs service namespace.

aws application-autoscaling describe-scalable-targets \
    --service-namespace ecs

Output:

{
    "ScalableTargets": [
        {
            "ServiceNamespace": "ecs",
            "ScalableDimension": "ecs:service:DesiredCount",
            "ResourceId": "service/default/web-app",
            "MinCapacity": 1,
            "MaxCapacity": 10,
            "RoleARN": "arn:aws:iam::123456789012:role/aws-service-role/ecs.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_ECSService",
            "CreationTime": 1462558906.199,
            "SuspendedState": {
                "DynamicScalingOutSuspended": false,
                "ScheduledScalingSuspended": false,
                "DynamicScalingInSuspended": false
            },
            "ScalableTargetARN": "arn:aws:application-autoscaling:us-west-2:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123"
        }
    ]
}

For more information, see AWS services that you can use with Application Auto Scaling in the Application Auto Scaling User Guide.

Example 1: This example will provide information about the Application Autoscaling Scalable targets in the specified namespace.

Get-AASScalableTarget -ServiceNamespace "AppStream"

Output:

CreationTime      : 11/7/2019 2:30:03 AM
MaxCapacity       : 5
MinCapacity       : 1
ResourceId        : fleet/Test
RoleARN           : arn:aws:iam::012345678912:role/aws-service-role/appstream.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_AppStreamFleet
ScalableDimension : appstream:fleet:DesiredCapacity
ServiceNamespace  : appstream
SuspendedState    : Amazon.ApplicationAutoScaling.Model.SuspendedState