Replacing policy with an AWS predefined one

Author: jnonino

autoscaling.tf

@@ -6,12 +6,9 @@ resource "aws_iam_role" "ecs_autoscale_role" {
   assume_role_policy = file("${path.module}/files/iam/ecs_autoscale_iam_role.json")
 }
 
-resource "aws_iam_role_policy" "ecs_autoscale_role_policy" {
-  name = "${var.name_preffix}-ecs-autoscale-role-policy"
-  role = aws_iam_role.ecs_autoscale_role.id
-  policy = file(
-    "${path.module}/files/iam/ecs_autoscale_iam_role_policy.json",
-  )
+resource "aws_iam_role_policy_attachment" "ecs_autoscale_role_policy_attach" {
+  role       = aws_iam_role.ecs_autoscale_role.name
+  policy_arn = "arn:aws:iam::aws:policy/aws-service-role/AWSApplicationAutoscalingECSServicePolicy"
 }
 
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