Upgrade to TF0.15 (#72)

* Upgrade to TF0.15

* Ignore docs for the builds

.github/workflows/terratest.yml

@@ -5,16 +5,24 @@ on:
  branches:
  - master
  - terraform011
+ paths-ignore:
+ - '**.md'
  pull_request:
- types: [opened, edited, reopened, synchronize]
+ types:
+ - opened
+ - edited
+ - reopened
+ - synchronize
+ paths-ignore:
+ - '**.md'
 
 jobs:
  terraform-static:
  name: terraform-fmt
  runs-on: ubuntu-latest
  strategy:
  matrix:
- terraform: ['0.14.10', '0.15.0']
+ terraform: ['0.15.0']
  steps:
  - name: 'Checkout'
  uses: actions/checkout@master
@@ -34,7 +42,7 @@ jobs:
  strategy:
  max-parallel: 1
  matrix:
- terraform: ['0.14.6', '0.15.0']
+ terraform: ['0.15.0']
  steps:
  - name: Set up Go
  uses: actions/setup-go@v2

README.md

@@ -27,6 +27,7 @@ You can also manage peering options, but you need to run `apply` twice to do tha
 
 **Always make sure you pinned the module version!**
 
+* For Terraform versions `>=0.15` use `v4.*` versions of this module
 * For Terraform versions `>=0.13` use `v3.*` versions of this module
 * For Terraform versions `>=0.12 <0.13` use `v2.*` versions of this module
 * If you're still using Terraform `0.11`, you can use `v1.*` versions of this module

provider.tf

@@ -1,17 +1,9 @@
 terraform {
  required_providers {
  aws = {
- source = "hashicorp/aws"
- version = "~> 3.0"
+ source = "hashicorp/aws"
+ version = "~> 3.37"
+ configuration_aliases = [aws.this, aws.peer]
  }
  }
 }
-
-# Aliases are required because of cross-region
-provider "aws" {
- alias = "this"
-}
-
-provider "aws" {
- alias = "peer"
-}