diff --git a/deploy/ecs_iam_roles.tf b/deploy/ecs_iam_roles.tf
index c1253c5..4afffd1 100644
--- a/deploy/ecs_iam_roles.tf
+++ b/deploy/ecs_iam_roles.tf
@@ -1,6 +1,6 @@
+#https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role
 resource "aws_iam_role" "ecs_task_role" {
   name = "${var.name}-task-role"
-
   # Terraform's "jsonencode" function converts a
   # Terraform expression result to valid JSON syntax.
   assume_role_policy = jsonencode({
@@ -25,9 +25,10 @@ resource "aws_iam_role" "ecs_task_role" {
     ]
   })
 }
+
+#https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role
 resource "aws_iam_role" "ecs_task_execution_role" {
   name = "${var.name}-task-execution-role"
-
   # Terraform's "jsonencode" function converts a
   # Terraform expression result to valid JSON syntax.
   assume_role_policy = jsonencode({
diff --git a/deploy/ecs_service.tf b/deploy/ecs_service.tf
index 68f47ee..d1f004b 100644
--- a/deploy/ecs_service.tf
+++ b/deploy/ecs_service.tf
@@ -1,4 +1,4 @@
-
+#https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ecs_service
 resource "aws_ecs_service" "service" {
   name                 = var.name
   cluster              = local.infra_output["cluster_id"]
diff --git a/deploy/ecs_task.tf b/deploy/ecs_task.tf
index 39ab80c..67877ad 100644
--- a/deploy/ecs_task.tf
+++ b/deploy/ecs_task.tf
@@ -1,3 +1,4 @@
+#https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ecs_task_definition
 resource "aws_ecs_task_definition" "web_app" {
   family                   = var.name
   execution_role_arn       = aws_iam_role.ecs_task_execution_role.arn