Add Linkry replication regions

Author: devksingh4

terraform/envs/prod/main.tf

@@ -37,6 +37,7 @@ locals {
     main = module.sqs_queues.main_queue_arn
     sqs  = module.sqs_queues.sales_email_queue_arn
   }
+  LinkryReplicationRegions = toset(["us-east-1", "us-west-2", "eu-central-1", "ap-south-1"])
 }
 
 module "sqs_queues" {
@@ -46,8 +47,9 @@ module "sqs_queues" {
 }
 
 module "dynamo" {
-  source    = "../../modules/dynamo"
-  ProjectId = var.ProjectId
+  source                   = "../../modules/dynamo"
+  ProjectId                = var.ProjectId
+  LinkryReplicationRegions = local.LinkryReplicationRegions
 }
 
 module "origin_verify" {

terraform/envs/qa/main.tf

@@ -31,6 +31,10 @@ provider "aws" {
 data "aws_caller_identity" "current" {}
 data "aws_region" "current" {}
 
+locals {
+  LinkryReplicationRegions = toset(["us-east-1", "us-west-2", "eu-central-1", "ap-south-1"])
+}
+
 
 module "sqs_queues" {
   depends_on                    = [module.lambdas]
@@ -47,8 +51,9 @@ locals {
 }
 
 module "dynamo" {
-  source    = "../../modules/dynamo"
-  ProjectId = var.ProjectId
+  source                   = "../../modules/dynamo"
+  ProjectId                = var.ProjectId
+  LinkryReplicationRegions = local.LinkryReplicationRegions
 }
 
 module "origin_verify" {

terraform/modules/dynamo/main.tf

@@ -290,7 +290,13 @@ resource "aws_dynamodb_table" "linkry_records" {
     name = "access"
     type = "S"
   }
-
+  dynamic "replica" {
+    for_each = var.LinkryReplicationRegions
+    content {
+      region_name                 = replica.value
+      deletion_protection_enabled = true
+    }
+  }
   global_secondary_index {
     name            = "AccessIndex"
     hash_key        = "access"

terraform/modules/dynamo/variables.tf

@@ -2,3 +2,8 @@ variable "ProjectId" {
   type        = string
   description = "Prefix before each resource"
 }
+
+variable "LinkryReplicationRegions" {
+  type        = set(string)
+  description = "A list of regions where the Linkry data should be replicated to (in addition to the primary region)"
+}