Terraform 0.12.29

.terraform/plugins/darwin_amd64/lock.json

+{
+  "archive": "2d74818e7deb7a1df699f3725399d058587c2bce45306360d7d210b871444d48",
+  "aws": "42f7948de981929bc60f1a6e1c83b14944a2556a3748fb3f5ea03dbc02bdefc6",
+  "template": "c141e1d7b44ba18a20d48dc1c4367422a1a14cffab3df43bfe5befeb3a20e89c"
+}
\ No newline at end of file

cloudwatch.tf

 resource "aws_cloudwatch_event_rule" "schedule" {
   name                = "${var.prefix}es-cleanup-execution-schedule"
   description         = "es-cleanup execution schedule"
-  schedule_expression = "${var.schedule}"
+  schedule_expression = var.schedule
 }
 
 resource "aws_cloudwatch_event_target" "es_cleanup" {
   target_id = "${var.prefix}lambda-es-cleanup"
-  rule      = "${aws_cloudwatch_event_rule.schedule.name}"
-  arn       = "${aws_lambda_function.es_cleanup.arn}"
+  rule      = aws_cloudwatch_event_rule.schedule.name
+  arn       = aws_lambda_function.es_cleanup.arn
 }
 
 resource "aws_lambda_permission" "allow_cloudwatch" {
   statement_id  = "AllowExecutionFromCloudWatch"
   action        = "lambda:InvokeFunction"
-  function_name = "${aws_lambda_function.es_cleanup.arn}"
+  function_name = aws_lambda_function.es_cleanup.arn
   principal     = "events.amazonaws.com"
-  source_arn    = "${aws_cloudwatch_event_rule.schedule.arn}"
+  source_arn    = aws_cloudwatch_event_rule.schedule.arn
 }
+

iam.tf

 data "template_file" "policy" {
-  template = "${file("${path.module}/files/es_policy.json")}"
+  template = file("${path.module}/files/es_policy.json")
 }
 
 resource "aws_iam_policy" "policy" {
   name        = "${var.prefix}es-cleanup"
   path        = "/"
   description = "Policy for es-cleanup Lambda function"
-  policy      = "${data.template_file.policy.rendered}"
+  policy      = data.template_file.policy.rendered
 }
 
 resource "aws_iam_role" "role" {
@@ -26,9 +26,11 @@ resource "aws_iam_role" "role" {
   ]
 }
 EOF
+
 }
 
 resource "aws_iam_role_policy_attachment" "policy_attachment" {
-  role       = "${aws_iam_role.role.name}"
-  policy_arn = "${aws_iam_policy.policy.arn}"
+  role       = aws_iam_role.role.name
+  policy_arn = aws_iam_policy.policy.arn
 }
+

lambda.tf

@@ -5,21 +5,22 @@ data "archive_file" "es_cleanup_lambda" {
 }
 
 resource "aws_lambda_function" "es_cleanup" {
-    filename         = "${path.module}/es-cleanup.zip"
-    function_name    = "${var.prefix}es-cleanup"
-    timeout          = 300
-    runtime          = "python${var.python_version}"
-    role             = "${aws_iam_role.role.arn}"
-    handler          = "es-cleanup.lambda_handler"
-    source_code_hash = "${data.archive_file.es_cleanup_lambda.output_base64sha256}"
+  filename         = "${path.module}/es-cleanup.zip"
+  function_name    = "${var.prefix}es-cleanup"
+  timeout          = 300
+  runtime          = "python${var.python_version}"
+  role             = aws_iam_role.role.arn
+  handler          = "es-cleanup.lambda_handler"
+  source_code_hash = data.archive_file.es_cleanup_lambda.output_base64sha256
 
-    environment {
-        variables = {
-            es_endpoint  = "${var.es_endpoint}"
-            index        = "${var.index}"
-            delete_after = "${var.delete_after}"
-            index_format = "${var.index_format}"
-            sns_alert    = "${var.sns_alert}"
-        }
+  environment {
+    variables = {
+      es_endpoint  = var.es_endpoint
+      index        = var.index
+      delete_after = var.delete_after
+      index_format = var.index_format
+      sns_alert    = var.sns_alert
     }
+  }
 }
+

variables.tf

-variable "prefix" {  default = "" }
+variable "prefix" {
+  default = ""
+}
 
-variable "schedule" { default = "cron(0 3 * * ? *)" }
+variable "schedule" {
+  default = "cron(0 3 * * ? *)"
+}
 
-variable "sns_alert" { default = "" }
+variable "sns_alert" {
+  default = ""
+}
 
-variable "es_endpoint" {}
+variable "es_endpoint" {
+}
 
-variable "index" {}
+variable "index" {
+}
 
-variable "delete_after" { default = 7 }
+variable "delete_after" {
+  default = 7
+}
 
-variable "index_format" {}
+variable "index_format" {
+}
+
+variable "python_version" {
+  default = "2.7"
+}
 
-variable "python_version" { default = "2.7" }

versions.tf

+
+terraform {
+  required_version = ">= 0.12"
+}