Create sanitech_maintenance.tf

func/sanitech_maintenance.tf

@@ -0,0 +1,57 @@
+resource "aws_autoscaling_schedule" "sanitech_maintenance_window" {
+  scheduled_action_name  = "sanitech-maintenance-window"
+  min_size              = 0
+  max_size              = 0
+  desired_capacity       = 0
+  recurrence            = "0 0 * * 1" # Run every Monday at midnight
+  autoscaling_group_name = aws_autoscaling_group.sanitech.name
+}
+
+resource "aws_lambda_permission" "sanitech_maintenance_permission" {
+  statement_id  = "AllowExecutionFromScheduledRule"
+  action        = "lambda:InvokeFunction"
+  function_name = aws_lambda_function.sanitech_maintenance.function_name
+  principal     = "sns.amazonaws.com"
+  source_arn    = aws_sns_topic.sanitech_maintenance.arn
+}
+
+resource "aws_sns_topic_subscription" "sanitech_maintenance_subscription" {
+  topic_arn = aws_sns_topic.sanitech_maintenance.arn
+  protocol  = "lambda"
+  endpoint  = aws_lambda_function.sanitech_maintenance.arn
+}
+
+resource "aws_lambda_function" "sanitech_maintenance" {
+  filename         = "maintenance.zip"
+  function_name    = "sanitech-maintenance"
+  role             = aws_iam_role.sanitech_maintenance.arn
+  handler          = "maintenance.handler"
+  source_code_hash = filebase64sha256("maintenance.zip")
+  runtime          = "nodejs14.x"
+}
+
+resource "aws_iam_role" "sanitech_maintenance" {
+  name = "sanitech-maintenance"
+
+  assume_role_policy = jsonencode({
+    Version = "2012-10-17"
+    Statement = [
+      {
+        Action = "sts:AssumeRole"
+        Effect = "Allow"
+        Principal = {
+          Service = "lambda.amazonaws.com"
+        }
+      }
+    ]
+  })
+}
+
+resource "aws_iam_role_policy_attachment" "sanitech_maintenance_policy_attachment" {
+  policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
+  role       = aws_iam_role.sanitech_maintenance.name
+}
+
+resource "aws_sns_topic" "sanitech_maintenance" {
+  name = "sanitech-maintenance"
+}