Remove region (#30)

* Remove explicit aws provider as rovider should be inherited implcitly from the parent, or explicitly overridden by the caller: https://www.terraform.io/docs/modules/usage.html#providers-within-modules

Author: alexjurkiewicz

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this
 project adheres to [Semantic Versioning](http://semver.org/).
 
+## [v2.4.0] - Unreleased
+
+* Remove `region` input. If you'd like to customise the AWS provider configuration, this is supported using the new `providers` input which is a core Terraform feature. [Read more.](https://www.terraform.io/docs/modules/usage.html#providers-within-modules)
+
 ## [v2.3.2] - 2017-12-18
 
 ### Added

main.tf

@@ -1,10 +1,5 @@
 ### ALB resources
 
-provider "aws" {
-  region  = "${var.region}"
-  version = ">= 1.0.0"
-}
-
 resource "aws_alb" "main" {
   name            = "${var.alb_name}"
   subnets         = ["${var.subnets}"]

variables.tf

@@ -18,10 +18,6 @@ variable "alb_security_groups" {
   type        = "list"
 }
 
-variable "region" {
-  description = "AWS region to use."
-}
-
 variable "backend_port" {
   description = "The port the service on the EC2 instances listen on."
   default     = 80

version

@@ -1 +1 @@
-v2.3.2
+v2.4.0