autoscaling.tf

 resource "aws_appautoscaling_target" "autoscaling_target" {
   max_capacity       = 2
   min_capacity       = 1
   resource_id        = "service/${var.clusterName}/${aws_ecs_service.service.name}"
   scalable_dimension = "ecs:service:DesiredCount"
   service_namespace  = "ecs"
 
   tags = var.tags
 }
 
 resource "aws_appautoscaling_policy" "memory_policy" {
   name               = "scaleby-memory"
   policy_type        = "TargetTrackingScaling"
   resource_id        = aws_appautoscaling_target.autoscaling_target.resource_id
   scalable_dimension = aws_appautoscaling_target.autoscaling_target.scalable_dimension
   service_namespace  = aws_appautoscaling_target.autoscaling_target.service_namespace
 
   target_tracking_scaling_policy_configuration {
     predefined_metric_specification {
       predefined_metric_type = "ECSServiceAverageMemoryUtilization"
     }
 
     target_value = 5
   }
 }
 
 resource "aws_appautoscaling_policy" "cpu_policy" {
   name               = "scaleby-cpu"
   policy_type        = "TargetTrackingScaling"
   resource_id        = aws_appautoscaling_target.autoscaling_target.resource_id
   scalable_dimension = aws_appautoscaling_target.autoscaling_target.scalable_dimension
   service_namespace  = aws_appautoscaling_target.autoscaling_target.service_namespace
 
   target_tracking_scaling_policy_configuration {
     predefined_metric_specification {
       predefined_metric_type = "ECSServiceAverageCPUUtilization"
     }
 
     target_value = 3
    }
}