Turning on Amazon ECS cluster auto scaling - Amazon Elastic Container Service
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Turning on Amazon ECS cluster auto scaling

You turn on cluster auto scaling so that Amazon ECS manages the scaling of Amazon EC2 instances that are registered to your cluster.

Before you begin, create an Auto Scaling group and a capacity provider. For more information, see Amazon ECS capacity providers for the EC2 launch type .

To turn on cluster auto scaling, you associate the capacity provider with the cluster, Then you turn on cluster auto scaling.

  1. Use the put-cluster-capacity-providers command to associate one or more capacity providers with the cluster.

    To add the Amazon Fargate capacity providers, include the FARGATE and FARGATE_SPOT capacity providers in the request. For more information, see put-cluster-capacity-providers in the Amazon CLI Command Reference.

    aws ecs put-cluster-capacity-providers \
  --cluster ClusterName \
  --capacity-providers CapacityProviderName FARGATE FARGATE_SPOT \
  --default-capacity-provider-strategy capacityProvider=CapacityProvider,weight=1

    To add an Auto Scaling group for the EC2 launch type, include the Auto Scaling group name in the request. For more information, see put-cluster-capacity-providers in the Amazon CLI Command Reference.

    aws ecs put-cluster-capacity-providers \
  --cluster ClusterName \
  --capacity-providers CapacityProviderName \
  --default-capacity-provider-strategy capacityProvider=CapacityProvider,weight=1

  2. Use the describe-clusters command to verify that the association was successful. For more information, see describe-clusters in the Amazon CLI Command Reference.

    aws ecs describe-clusters \
  --cluster ClusterName \
  --include ATTACHMENTS

  3. Use the update-capacity-provider command to turn on managed auto scaling for the capacity provider. For more information, see update-capacity-provider in the Amazon CLI Command Reference.

    aws ecs update-capacity-provider \
  --capacity-providers CapacityProviderName \
  --auto-scaling-group-provider managedScaling=ENABLED