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**To add a target tracking scaling policy to an Auto Scaling group**

The following ``put-scaling-policy`` example applies a target tracking scaling policy to the specified Auto Scaling group. The output contains the ARNs and names of the two CloudWatch alarms created on your behalf. If a scaling policy with the same name already exists, it will be overwritten by the new scaling policy. ::

    aws autoscaling put-scaling-policy --auto-scaling-group-name my-asg \
      --policy-name alb1000-target-tracking-scaling-policy \
      --policy-type TargetTrackingScaling \
      --target-tracking-configuration file://config.json

Contents of ``config.json``::

    {
         "TargetValue": 1000.0,
         "PredefinedMetricSpecification": {
              "PredefinedMetricType": "ALBRequestCountPerTarget",
              "ResourceLabel": "app/my-alb/778d41231b141a0f/targetgroup/my-alb-target-group/943f017f100becff"
         }
    }

Output::

   {
        "PolicyARN": "arn:aws:autoscaling:region:account-id:scalingPolicy:228f02c2-c665-4bfd-aaac-8b04080bea3c:autoScalingGroupName/my-asg:policyName/alb1000-target-tracking-scaling-policy",
        "Alarms": [
            {
                "AlarmARN": "arn:aws:cloudwatch:region:account-id:alarm:TargetTracking-my-asg-AlarmHigh-fc0e4183-23ac-497e-9992-691c9980c38e",
                "AlarmName": "TargetTracking-my-asg-AlarmHigh-fc0e4183-23ac-497e-9992-691c9980c38e"
            },
            {
                "AlarmARN": "arn:aws:cloudwatch:region:account-id:alarm:TargetTracking-my-asg-AlarmLow-61a39305-ed0c-47af-bd9e-471a352ee1a2",
                "AlarmName": "TargetTracking-my-asg-AlarmLow-61a39305-ed0c-47af-bd9e-471a352ee1a2"
            }
        ]
    }

For more examples, see `Example scaling policies for the AWS Command Line Interface (AWS CLI) <https://docs.aws.amazon.com/autoscaling/ec2/userguide/examples-scaling-policies.html>`__ in the *Amazon EC2 Auto Scaling User Guide*.

Filemanager

Name Type Size Permission Actions
attach-instances.rst File 306 B 0644
attach-load-balancer-target-groups.rst File 622 B 0755
attach-load-balancers.rst File 554 B 0644
cancel-instance-refresh.rst File 545 B 0644
complete-lifecycle-action.rst File 690 B 0644
create-auto-scaling-group.rst File 8.71 KB 0644
create-launch-configuration.rst File 7.03 KB 0644
create-or-update-tags.rst File 619 B 0644
delete-auto-scaling-group.rst File 1006 B 0644
delete-launch-configuration.rst File 445 B 0644
delete-lifecycle-hook.rst File 263 B 0644
delete-notification-configuration.rst File 573 B 0644
delete-policy.rst File 270 B 0644
delete-scheduled-action.rst File 338 B 0644
delete-tags.rst File 496 B 0644
delete-warm-pool.rst File 961 B 0644
describe-account-limits.rst File 596 B 0644
describe-adjustment-types.rst File 700 B 0644
describe-auto-scaling-groups.rst File 3.61 KB 0644
describe-auto-scaling-instances.rst File 2.01 KB 0644
describe-auto-scaling-notification-types.rst File 745 B 0644
describe-instance-refreshes.rst File 2.21 KB 0644
describe-launch-configurations.rst File 2.46 KB 0644
describe-lifecycle-hook-types.rst File 345 B 0644
describe-lifecycle-hooks.rst File 972 B 0644
describe-load-balancer-target-groups.rst File 570 B 0755
describe-load-balancers.rst File 443 B 0644
describe-metric-collection-types.rst File 1.57 KB 0644
describe-notification-configurations.rst File 2.49 KB 0644
describe-policies.rst File 4.7 KB 0644
describe-scaling-activities.rst File 4.95 KB 0644
describe-scaling-process-types.rst File 1.11 KB 0644
describe-scheduled-actions.rst File 6.92 KB 0644
describe-tags.rst File 1.96 KB 0644
describe-termination-policy-types.rst File 727 B 0644
describe-warm-pool.rst File 1.56 KB 0644
detach-instances.rst File 1015 B 0644
detach-load-balancer-target-groups.rst File 654 B 0755
detach-load-balancers.rst File 559 B 0644
disable-metrics-collection.rst File 581 B 0644
enable-metrics-collection.rst File 1.11 KB 0644
enter-standby.rst File 1.25 KB 0644
execute-policy.rst File 578 B 0644
exit-standby.rst File 1.15 KB 0644
put-lifecycle-hook.rst File 2.5 KB 0644
put-notification-configuration.rst File 637 B 0644
put-scaling-policy.rst File 1.94 KB 0644
put-scheduled-update-group-action.rst File 1.54 KB 0644
put-warm-pool.rst File 509 B 0644
record-lifecycle-action-heartbeat.rst File 596 B 0644
resume-processes.rst File 518 B 0644
rollback-instance-refresh.rst File 559 B 0644
set-desired-capacity.rst File 341 B 0644
set-instance-health.rst File 290 B 0644
set-instance-protection.rst File 714 B 0644
start-instance-refresh.rst File 1.96 KB 0644
suspend-processes.rst File 514 B 0644
terminate-instance-in-auto-scaling-group.rst File 1005 B 0644
update-auto-scaling-group.rst File 4.9 KB 0644