un-hardcode the region

Author: jbartus

eks.tf

@@ -30,7 +30,7 @@ module "eks" {
 resource "null_resource" "kubectl" {
   depends_on = [module.eks]
   provisioner "local-exec" {
-    command = "aws --region us-east-1 eks update-kubeconfig --name ${module.eks.cluster_name}"
+    command = "aws eks update-kubeconfig --name ${module.eks.cluster_name}"
   }
 }
 

nbc.tf

@@ -27,7 +27,7 @@ resource "aws_instance" "nbc_instance" {
 }
 
 output "nbc_ssm_command" {
-  value = "aws --region us-east-1 ssm start-session --target ${aws_instance.nbc_instance.id}"
+  value = "aws ssm start-session --target ${aws_instance.nbc_instance.id}"
 }
 
 output "nbc_url" {

nbe.tf

@@ -53,7 +53,7 @@ resource "aws_instance" "nbe_instance" {
 }
 
 output "nbe_ssm_command" {
-  value = "aws --region us-east-1 ssm start-session --target ${aws_instance.nbe_instance.id}"
+  value = "aws ssm start-session --target ${aws_instance.nbe_instance.id}"
 }
 
 output "nbe_console_url" {

orb.tf

@@ -24,5 +24,5 @@ resource "aws_instance" "orb_instance" {
 }
 
 output "orb_ssm_command" {
-  value = "aws --region us-east-1 ssm start-session --target ${aws_instance.orb_instance.id}"
+  value = "aws ssm start-session --target ${aws_instance.orb_instance.id}"
 }

providers.tf

@@ -12,7 +12,7 @@ data "external" "whoami" {
 }
 
 provider "aws" {
-  region = "us-east-1"
+  region = var.aws_region
   default_tags {
     tags = {
       Owner = data.external.whoami.result.username

terraform.tfvars.example

@@ -1,4 +1,5 @@
-nbe_token            = ""
-nbe_console_password = "6chars"
-nbe_admin_password   = "12characters"
-postgres_password    = "yesql123"
+aws_region           = "us-east-1"
+nbe_token            = "your-nbe-token"
+nbe_console_password = "your-console-password"
+nbe_admin_password   = "your-admin-password"
+postgres_password    = "your-postgres-password"

variables.tf

@@ -1,3 +1,8 @@
+variable "aws_region" {
+  type    = string
+  default = "us-east-1"
+}
+
 variable "nbe_token" {
   type      = string
   sensitive = true

vpc.tf

@@ -2,7 +2,7 @@ module "vpc" {
   source             = "terraform-aws-modules/vpc/aws"
   name               = "terraform-vpc"
   cidr               = "10.0.0.0/16"
-  azs                = ["us-east-1a", "us-east-1b", "us-east-1c"]
+  azs                = ["${var.aws_region}a", "${var.aws_region}b", "${var.aws_region}c"]
   public_subnets     = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
   private_subnets    = ["10.0.11.0/24", "10.0.12.0/24", "10.0.13.0/24"]
   enable_nat_gateway = true