Change the lambda source path

codebuild/main.tf

@@ -1,11 +1,3 @@
-provider "aws" {
-  region = "${var.aws_region}"
-}
-
-terraform {
-  backend "s3" {}
-}
-
 resource "aws_codebuild_project" "build_project" {
   name = "${var.build_name}"
   description = "${var.build_description}"

lambda/main.tf

@@ -1,15 +1,14 @@
-provider "aws" {
-  region = "${var.aws_region}"
-}
-
-terraform {
-  backend "s3" {}
-}
-
 resource "aws_lambda_function" "base_lambda" {
   function_name = "${var.function_name}"
   handler = "${var.function_handler}"
   role = "${aws_iam_role.lambda_iam_role.arn}"
   runtime = "${var.function_runtime}"
-  filename = "${var.function_filename}"
+  filename = "${path.module}/bootstrap.zip"
+  source_code_hash = "${base64sha256(file("${path.module}/bootstrap.zip"))}"
+
+  lifecycle {
+    ignore_changes = [
+      "filename"
+    ]
+  }
 }

lambda/vars.tf

@@ -21,10 +21,4 @@ variable "function_runtime" {
 variable "function_handler" {
   description = "Path to the handler function"
   type = "string"
-}
-
-variable "function_filename" {
-  description = "Path to the handler function"
-  type = "string"
-  default = "bootstrap.zip"
 }