Store terraform state in S3

deploy/aws/main.tf

@@ -18,6 +18,14 @@ resource "null_resource" "prebuild" {
   }
 }
 
+# Bucket config must be here: https://github.com/hashicorp/terraform/issues/13589 
+terraform {
+    backend "s3" {
+    bucket = "terraform-qed-cluster"
+    key    = "terraform.tfstate"
+    region = "eu-west-1"
+  }
+}
 module "leader" {
   source = "./modules/qed"
 

deploy/aws/pre-build/bucket.tf

@@ -0,0 +1,24 @@
+terraform {
+  required_version = ">= 0.11.11"
+}
+
+provider "aws" {
+  version = ">= 1.56.0, < 2.0"
+  region = "eu-west-1"
+  profile = "${var.aws_profile}"
+}
+resource "aws_s3_bucket" "terraform-qed-cluster" {
+    bucket = "terraform-qed-cluster"
+
+    versioning {
+      enabled = true
+    }
+
+    lifecycle {
+      prevent_destroy = true
+    }
+
+    tags {
+      Name = "S3 Remote Terraform State Store"
+    }      
+}

deploy/aws/pre-build/variables.tf

@@ -0,0 +1 @@
+../variables.tf