Auto Scaling Plans examples using Amazon CLI - Amazon Command Line Interface
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Auto Scaling Plans examples using Amazon CLI

The following code examples show you how to perform actions and implement common scenarios by using the Amazon Command Line Interface with Auto Scaling Plans.

Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

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Actions

The following code example shows how to use create-scaling-plan.

Amazon CLI

To create a scaling plan

The following create-scaling-plan example creates a scaling plan named my-scaling-plan using an already-created JSON file (named config.json). The structure of the scaling plan includes a scaling instruction for an Auto Scaling group named my-asg. It specifies the TagFilters property as the application source and enables predictive scaling and dynamic scaling.

aws autoscaling-plans create-scaling-plan \
    --scaling-plan-name my-scaling-plan \
    --cli-input-json file://~/config.json

Contents of config.json file:

{
    "ApplicationSource": {
        "TagFilters": [
            {
                "Key": "purpose",
                "Values": [
                    "my-application"
                ]
            }
        ]
    },
    "ScalingInstructions": [
        {
            "ServiceNamespace": "autoscaling",
            "ResourceId": "autoScalingGroup/my-asg",
            "ScalableDimension": "autoscaling:autoScalingGroup:DesiredCapacity",
            "ScheduledActionBufferTime": 300,
            "PredictiveScalingMaxCapacityBehavior": "SetForecastCapacityToMaxCapacity",
            "PredictiveScalingMode": "ForecastAndScale",
            "PredefinedLoadMetricSpecification": {
                "PredefinedLoadMetricType": "ASGTotalCPUUtilization"
            },
            "ScalingPolicyUpdateBehavior": "ReplaceExternalPolicies",
            "MinCapacity": 1,
            "MaxCapacity": 4,
            "TargetTrackingConfigurations": [
                {
                    "PredefinedScalingMetricSpecification": {
                        "PredefinedScalingMetricType": "ASGAverageCPUUtilization"
                    },
                    "TargetValue": 50
                }
            ]
        }
    ]
}

Output:

{
"ScalingPlanVersion": 1
}

For more information, see the Amazon Auto Scaling User Guide.

The following code example shows how to use delete-scaling-plan.

Amazon CLI

To delete a scaling plan

The following delete-scaling-plan example deletes the specified scaling plan.

aws autoscaling-plans delete-scaling-plan \
    --scaling-plan-name my-scaling-plan \
    --scaling-plan-version 1

This command produces no output.

For more information, see the Amazon Auto Scaling User Guide.

The following code example shows how to use describe-scaling-plan-resources.

Amazon CLI

To describe the scalable resources for a scaling plan

The following describe-scaling-plan-resources example displays details about the single scalable resource (an Auto Scaling group) that is associated with the specified scaling plan.

aws autoscaling-plans describe-scaling-plan-resources \
    --scaling-plan-name my-scaling-plan \
    --scaling-plan-version 1

Output:

{
    "ScalingPlanResources": [
        {
            "ScalableDimension": "autoscaling:autoScalingGroup:DesiredCapacity",
            "ScalingPlanVersion": 1,
            "ResourceId": "autoScalingGroup/my-asg",
            "ScalingStatusCode": "Active",
            "ScalingStatusMessage": "Target tracking scaling policies have been applied to the resource.",
            "ScalingPolicies": [
                {
                    "PolicyName": "AutoScaling-my-asg-b1ab65ae-4be3-4634-bd64-c7471662b251",
                    "PolicyType": "TargetTrackingScaling",
                    "TargetTrackingConfiguration": {
                        "PredefinedScalingMetricSpecification": {
                            "PredefinedScalingMetricType": "ALBRequestCountPerTarget",
                            "ResourceLabel": "app/my-alb/f37c06a68c1748aa/targetgroup/my-target-group/6d4ea56ca2d6a18d"
                        },
                        "TargetValue": 40.0
                    }
                }
            ],
            "ServiceNamespace": "autoscaling",
            "ScalingPlanName": "my-scaling-plan"
        }
    ]
}

For more information, see What Is Amazon Auto Scaling? in the Amazon Auto Scaling User Guide.

The following code example shows how to use describe-scaling-plans.

Amazon CLI

To describe a scaling plan

The following describe-scaling-plans example displays the details of the specified scaling plan.

aws autoscaling-plans describe-scaling-plans \
    --scaling-plan-names scaling-plan-with-asg-and-ddb

Output:

{
    "ScalingPlans": [
        {
            "LastMutatingRequestTime": 1565388443.963,
            "ScalingPlanVersion": 1,
            "CreationTime": 1565388443.963,
            "ScalingInstructions": [
                {
                    "ScalingPolicyUpdateBehavior": "ReplaceExternalPolicies",
                    "ScalableDimension": "autoscaling:autoScalingGroup:DesiredCapacity",
                    "TargetTrackingConfigurations": [
                        {
                            "PredefinedScalingMetricSpecification": {
                                "PredefinedScalingMetricType": "ASGAverageCPUUtilization"
                            },
                            "TargetValue": 50.0,
                            "EstimatedInstanceWarmup": 300,
                            "DisableScaleIn": false
                        }
                    ],
                    "ResourceId": "autoScalingGroup/my-asg",
                    "DisableDynamicScaling": false,
                    "MinCapacity": 1,
                    "ServiceNamespace": "autoscaling",
                    "MaxCapacity": 10
                },
                {
                    "ScalingPolicyUpdateBehavior": "ReplaceExternalPolicies",
                    "ScalableDimension": "dynamodb:table:ReadCapacityUnits",
                    "TargetTrackingConfigurations": [
                        {
                            "PredefinedScalingMetricSpecification": {
                                "PredefinedScalingMetricType": "DynamoDBReadCapacityUtilization"
                            },
                            "TargetValue": 50.0,
                            "ScaleInCooldown": 60,
                            "DisableScaleIn": false,
                            "ScaleOutCooldown": 60
                        }
                    ],
                    "ResourceId": "table/my-table",
                    "DisableDynamicScaling": false,
                    "MinCapacity": 5,
                    "ServiceNamespace": "dynamodb",
                    "MaxCapacity": 10000
                },
                {
                    "ScalingPolicyUpdateBehavior": "ReplaceExternalPolicies",
                    "ScalableDimension": "dynamodb:table:WriteCapacityUnits",
                    "TargetTrackingConfigurations": [
                        {
                            "PredefinedScalingMetricSpecification": {
                                "PredefinedScalingMetricType": "DynamoDBWriteCapacityUtilization"
                            },
                            "TargetValue": 50.0,
                            "ScaleInCooldown": 60,
                            "DisableScaleIn": false,
                            "ScaleOutCooldown": 60
                        }
                    ],
                    "ResourceId": "table/my-table",
                    "DisableDynamicScaling": false,
                    "MinCapacity": 5,
                    "ServiceNamespace": "dynamodb",
                    "MaxCapacity": 10000
                }
            ],
            "ApplicationSource": {
                "TagFilters": [
                    {
                        "Values": [
                            "my-application-id"
                        ],
                        "Key": "application"
                    }
                ]
            },
            "StatusStartTime": 1565388455.836,
            "ScalingPlanName": "scaling-plan-with-asg-and-ddb",
            "StatusMessage": "Scaling plan has been created and applied to all resources.",
            "StatusCode": "Active"
        }
    ]
}

For more information, see What Is Amazon Auto Scaling? in the Amazon Auto Scaling User Guide.

The following code example shows how to use get-scaling-plan-resource-forecast-data.

Amazon CLI

To retrieve load forecast data

This example retrieves load forecast data for a scalable resource (an Auto Scaling group) that is associated with the specified scaling plan.

aws autoscaling-plans get-scaling-plan-resource-forecast-data \
    --scaling-plan-name my-scaling-plan \
    --scaling-plan-version 1 \
    --service-namespace "autoscaling" \
    --resource-id autoScalingGroup/my-asg \
    --scalable-dimension "autoscaling:autoScalingGroup:DesiredCapacity" \
    --forecast-data-type "LoadForecast" \
    --start-time "2019-08-30T00:00:00Z" \
    --end-time "2019-09-06T00:00:00Z"

Output:

{
    "Datapoints": [...]
}

For more information, see What Is Amazon Auto Scaling in the Amazon Auto Scaling User Guide.

The following code example shows how to use update-scaling-plan.

Amazon CLI

To update a scaling plan

The following update-scaling-plan example modifies the scaling metric for an Auto Scaling group in the specified scaling plan.

aws autoscaling-plans update-scaling-plan \
    --scaling-plan-name my-scaling-plan \
    --scaling-plan-version 1 \
    --scaling-instructions '{"ScalableDimension":"autoscaling:autoScalingGroup:DesiredCapacity","ResourceId":"autoScalingGroup/my-asg","ServiceNamespace":"autoscaling","TargetTrackingConfigurations":[{"PredefinedScalingMetricSpecification": {"PredefinedScalingMetricType":"ALBRequestCountPerTarget","ResourceLabel":"app/my-alb/f37c06a68c1748aa/targetgroup/my-target-group/6d4ea56ca2d6a18d"},"TargetValue":40.0}],"MinCapacity": 1,"MaxCapacity": 10}'

This command produces no output.

For more information, see What Is Amazon Auto Scaling? in the Amazon Auto Scaling User Guide.