Add cooldown variable for ECS scaling policy (#35)

Author: mayank0202

README.md

@@ -79,6 +79,7 @@ No modules.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| <a name="input_cooldown"></a> [cooldown](#input\_cooldown) | Cooldown period for scaling actions | `number` | `60` | no |
 | <a name="input_ecs_cluster_name"></a> [ecs\_cluster\_name](#input\_ecs\_cluster\_name) | Name of the ECS cluster | `any` | n/a | yes |
 | <a name="input_ecs_service_name"></a> [ecs\_service\_name](#input\_ecs\_service\_name) | Name of the ECS service | `any` | n/a | yes |
 | <a name="input_max_cpu_evaluation_period"></a> [max\_cpu\_evaluation\_period](#input\_max\_cpu\_evaluation\_period) | The number of periods over which data is compared to the specified threshold for max cpu metric alarm | `string` | `"3"` | no |

main.tf

@@ -55,7 +55,7 @@ resource "aws_appautoscaling_policy" "scale_up_policy" {
   scalable_dimension = "ecs:service:DesiredCount"
   step_scaling_policy_configuration {
     adjustment_type         = "ChangeInCapacity"
-    cooldown                = 60
+    cooldown                = var.cooldown
     metric_aggregation_type = "Maximum"
     step_adjustment {
       metric_interval_lower_bound = 0
@@ -75,7 +75,7 @@ resource "aws_appautoscaling_policy" "scale_down_policy" {
   scalable_dimension = "ecs:service:DesiredCount"
   step_scaling_policy_configuration {
     adjustment_type         = "ChangeInCapacity"
-    cooldown                = 60
+    cooldown                = var.cooldown
     metric_aggregation_type = "Maximum"
     step_adjustment {
       metric_interval_upper_bound = 0

variables.tf

@@ -73,3 +73,8 @@ variable "sns_topic_arn" {
   description = "The ARN of an SNS topic to send notifications on alarm actions."
   default     = "" # Set an empty string as default to avoid potential errors
 }
+variable "cooldown" {
+  description = "Cooldown period for scaling actions"
+  type        = number
+  default     = 60 // Default value, adjust as needed
+}