aws-application-autoscaling

name	aws-application-autoscaling
description	Application Auto Scaling via AWS CLI v2 (`aws application-autoscaling`). Scalable targets, scaling policies, scheduled actions, predictive scaling.

AWS CLI v2 — Application Auto Scaling

Overview

Complete reference for all aws application-autoscaling subcommands in AWS CLI v2. Covers scalable target registration, scaling policy management (target tracking, step scaling, predictive scaling), scheduled actions, scaling activity monitoring, and resource tagging. Application Auto Scaling provides unified auto scaling for AWS services including ECS, DynamoDB, Lambda, RDS, ElastiCache, Neptune, SageMaker, EMR, AppStream, EC2 Spot Fleets, Comprehend, Kafka, Cassandra, and custom resources.

Quick Reference — Common Workflows

Register an ECS service for auto scaling

aws application-autoscaling register-scalable-target \
    --service-namespace ecs \
    --scalable-dimension ecs:service:DesiredCount \
    --resource-id service/my-cluster/my-service \
    --min-capacity 2 \
    --max-capacity 10

aws application-autoscaling put-scaling-policy \
    --service-namespace ecs \
    --scalable-dimension ecs:service:DesiredCount \
    --resource-id service/my-cluster/my-service \
    --policy-name cpu-target-tracking \
    --policy-type TargetTrackingScaling \
    --target-tracking-scaling-policy-configuration \
        '{"TargetValue":75.0,"PredefinedMetricSpecification":{"PredefinedMetricType":"ECSServiceAverageCPUUtilization"},"ScaleOutCooldown":300,"ScaleInCooldown":300}'

Set up DynamoDB table auto scaling

aws application-autoscaling register-scalable-target \
    --service-namespace dynamodb \
    --scalable-dimension dynamodb:table:ReadCapacityUnits \
    --resource-id table/my-table \
    --min-capacity 5 \
    --max-capacity 100

aws application-autoscaling put-scaling-policy \
    --service-namespace dynamodb \
    --scalable-dimension dynamodb:table:ReadCapacityUnits \
    --resource-id table/my-table \
    --policy-name read-capacity-tracking \
    --policy-type TargetTrackingScaling \
    --target-tracking-scaling-policy-configuration \
        '{"TargetValue":70.0,"PredefinedMetricSpecification":{"PredefinedMetricType":"DynamoDBReadCapacityUtilization"}}'

Create a scheduled scaling action

aws application-autoscaling put-scheduled-action \
    --service-namespace ecs \
    --scalable-dimension ecs:service:DesiredCount \
    --resource-id service/my-cluster/my-service \
    --scheduled-action-name scale-up-morning \
    --schedule "cron(0 8 * * ? *)" \
    --timezone "America/New_York" \
    --scalable-target-action MinCapacity=5,MaxCapacity=20

Check scaling activities

aws application-autoscaling describe-scaling-activities \
    --service-namespace ecs \
    --resource-id service/my-cluster/my-service \
    --query 'ScalingActivities[].{Time:StartTime,Status:StatusCode,Cause:Cause}'

Command Reference

Group	File	Commands
Scalable Targets	scalable-targets.md	register-scalable-target, deregister-scalable-target, describe-scalable-targets
Scaling Policies	scaling-policies.md	put-scaling-policy, delete-scaling-policy, describe-scaling-policies, describe-scaling-activities, get-predictive-scaling-forecast
Scheduled Actions	scheduled-actions.md	put-scheduled-action, delete-scheduled-action, describe-scheduled-actions
Tags	tags.md	tag-resource, untag-resource, list-tags-for-resource