From 9487b8d04403662d975e592e0fcf6a9096e9fdd5 Mon Sep 17 00:00:00 2001
From: Michael Abadilla <60165806+mabadillamycwt@users.noreply.github.com>
Date: Wed, 4 Mar 2020 16:04:28 +0800
Subject: [PATCH] Make template for output file configurable (#38)

* Make template for output file configurable

* Document new variable

* Updated README.md

Co-authored-by: actions-bot <58130806+actions-bot@users.noreply.github.com>
---
 README.md         | 1 +
 docs/terraform.md | 1 +
 main.tf           | 4 +++-
 variables.tf      | 8 +++++++-
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index ba16e07..74c1791 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,7 @@ Available targets:
 | tags | Additional tags (e.g. `map('BusinessUnit','XYZ')` | map(string) | `<map>` | no |
 | terraform_backend_config_file_name | Name of terraform backend config file | string | `terraform.tf` | no |
 | terraform_backend_config_file_path | The path to terrafrom project directory | string | `` | no |
+| terraform_backend_config_template_file | The path to the template used to generate the config file | string | `` | no |
 | terraform_state_file | The path to the state file inside the bucket | string | `terraform.tfstate` | no |
 | terraform_version | The minimum required terraform version | string | `0.12.2` | no |
 | write_capacity | DynamoDB write capacity units | string | `5` | no |
diff --git a/docs/terraform.md b/docs/terraform.md
index 29794bb..b2d7c88 100644
--- a/docs/terraform.md
+++ b/docs/terraform.md
@@ -31,6 +31,7 @@
 | tags | Additional tags (e.g. `map('BusinessUnit','XYZ')` | map(string) | `<map>` | no |
 | terraform_backend_config_file_name | Name of terraform backend config file | string | `terraform.tf` | no |
 | terraform_backend_config_file_path | The path to terrafrom project directory | string | `` | no |
+| terraform_backend_config_template_file | The path to the template used to generate the config file | string | `` | no |
 | terraform_state_file | The path to the state file inside the bucket | string | `terraform.tfstate` | no |
 | terraform_version | The minimum required terraform version | string | `0.12.2` | no |
 | write_capacity | DynamoDB write capacity units | string | `5` | no |
diff --git a/main.tf b/main.tf
index c8c57ef..70dd6f2 100644
--- a/main.tf
+++ b/main.tf
@@ -12,6 +12,8 @@ locals {
     var.terraform_backend_config_file_name
   )
 
+  terraform_backend_config_template_file = var.terraform_backend_config_template_file != "" ? var.terraform_backend_config_template_file : "${path.module}/templates/terraform.tf.tpl"
+
   bucket_name = var.s3_bucket_name != "" ? var.s3_bucket_name : module.s3_bucket_label.id
 }
 
@@ -197,7 +199,7 @@ resource "aws_dynamodb_table" "without_server_side_encryption" {
 }
 
 data "template_file" "terraform_backend_config" {
-  template = file("${path.module}/templates/terraform.tf.tpl")
+  template = file(local.terraform_backend_config_template_file)
 
   vars = {
     region = var.region
diff --git a/variables.tf b/variables.tf
index ad4bb8f..5d98803 100644
--- a/variables.tf
+++ b/variables.tf
@@ -191,6 +191,12 @@ variable "terraform_backend_config_file_path" {
   description = "The path to terrafrom project directory"
 }
 
+variable "terraform_backend_config_template_file" {
+  type        = string
+  default     = ""
+  description = "The path to the template used to generate the config file"
+}
+
 variable "terraform_version" {
   type        = string
   default     = "0.12.2"
@@ -207,4 +213,4 @@ variable "s3_bucket_name" {
   type        = string
   default     = ""
   description = "S3 bucket name. If not provided, the name will be generated by the label module in the format namespace-stage-name"
-}
\ No newline at end of file
+}