Add hook to create partial backend configuration (#2)

* Add hook to create partial backend configuration

* Remove old line

Author: Sol Rosenberg

live/global/terraform-remote-state/terragrunt.hcl

@@ -3,6 +3,6 @@ terraform {
 }
 
 inputs = {
-  bucket         = chomp(run_cmd("../../../config/config.sh", "BUCKET"))
-  dynamodb_table = chomp(run_cmd("../../../config/config.sh", "DYNAMODB_TABLE"))
+  bucket         = chomp(run_cmd("../../../scripts/config.sh", "BUCKET"))
+  dynamodb_table = chomp(run_cmd("../../../scripts/config.sh", "DYNAMODB_TABLE"))
 }

live/terragrunt.hcl

@@ -3,15 +3,20 @@ remote_state {
   backend = "s3"
 
   config = {
-    bucket         = chomp(run_cmd("${path_relative_from_include()}/../config/config.sh", "BUCKET"))
-    region         = chomp(run_cmd("${path_relative_from_include()}/../config/config.sh", "REGION"))
-    dynamodb_table = chomp(run_cmd("${path_relative_from_include()}/../config/config.sh", "DYNAMODB_TABLE"))
+    bucket         = chomp(run_cmd("${path_relative_from_include()}/../scripts/config.sh", "BUCKET"))
+    region         = chomp(run_cmd("${path_relative_from_include()}/../scripts/config.sh", "REGION"))
+    dynamodb_table = chomp(run_cmd("${path_relative_from_include()}/../scripts/config.sh", "DYNAMODB_TABLE"))
     key            = "${path_relative_to_include()}/terraform.tfstate"
     encrypt        = true
   }
 }
 
 terraform {
+  after_hook "init_from_module" {
+    commands = ["init-from-module"]
+    execute  = ["ln", "-sf", "../../backend.tf", "."]
+  }
+
   extra_arguments "env_vars" {
     commands = [
       "init",

scripts/after_hooks_init_from_module.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [ ! -f "backend.tf" ]; then
+	ln -s ../../backend.tf .
+fi

config/config.sh renamed to scripts/config.sh

@@ -8,7 +8,7 @@ syntax() {
 print_config() {
   cd "$(dirname "${BASH_SOURCE[0]}")" || exit
 
-  x="$(grep ^"$1" ./remote_state.config)"
+  x="$(grep ^"$1" ../config/remote_state.config)"
   if [ "$x" ]; then
   	echo "$x" | cut -d'=' -f2
   else