aws_appautoscaling_target

Provides an Application AutoScaling ScalableTarget resource. To manage policies which get attached to the target, see the aws_appautoscaling_policy resource.

Example Usage

DynamoDB Table Autoscaling

resource "aws_appautoscaling_target" "dynamodb_table_read_target" {
  max_capacity       = 100
  min_capacity       = 5
  resource_id        = "table/${aws_dynamodb_table.example.name}"
  role_arn           = "${data.aws_iam_role.DynamoDBAutoscaleRole.arn}"
  scalable_dimension = "dynamodb:table:ReadCapacityUnits"
  service_namespace  = "dynamodb"
}

DynamoDB Index Autoscaling

resource "aws_appautoscaling_target" "dynamodb_index_read_target" {
  max_capacity       = 100
  min_capacity       = 5
  resource_id        = "table/${aws_dynamodb_table.example.name}/index/${var.index_name}"
  role_arn           = "${data.aws_iam_role.DynamoDBAutoscaleRole.arn}"
  scalable_dimension = "dynamodb:index:ReadCapacityUnits"
  service_namespace  = "dynamodb"
}

ECS Service Autoscaling

resource "aws_appautoscaling_target" "ecs_target" {
  max_capacity       = 4
  min_capacity       = 1
  resource_id        = "service/${aws_ecs_cluster.example.name}/${aws_ecs_service.example.name}"
  role_arn           = "${var.ecs_iam_role}"
  scalable_dimension = "ecs:service:DesiredCount"
  service_namespace  = "ecs"
}

Aurora Read Replica Autoscaling

resource "aws_appautoscaling_target" "replicas" {
  service_namespace  = "rds"
  scalable_dimension = "rds:cluster:ReadReplicaCount"
  resource_id        = "cluster:${aws_rds_cluster.example.id}"
  min_capacity       = 1
  max_capacity       = 15
}

Argument Reference

The following arguments are supported:

• max_capacity - (Required) The max capacity of the scalable target.
• min_capacity - (Required) The min capacity of the scalable target.
• resource_id - (Required) The resource type and unique identifier string for the resource associated with the scaling policy. Documentation can be found in the ResourceId parameter at: AWS Application Auto Scaling API Reference
• role_arn - (Optional) The ARN of the IAM role that allows Application AutoScaling to modify your scalable target on your behalf.
• scalable_dimension - (Required) The scalable dimension of the scalable target. Documentation can be found in the ScalableDimension parameter at: AWS Application Auto Scaling API Reference
• service_namespace - (Required) The AWS service namespace of the scalable target. Documentation can be found in the ServiceNamespace parameter at: AWS Application Auto Scaling API Reference