From e86f3c1dd6fb48abe085c89eebb6f74a064e7cf3 Mon Sep 17 00:00:00 2001
From: Ash Davies <3853061+DrizzlyOwl@users.noreply.github.com>
Date: Wed, 24 Apr 2024 12:09:22 +0100
Subject: [PATCH] Deploy MX Records for Prod environment (#479)

---
 terraform/README.md                 |  1 +
 terraform/container-apps-hosting.tf |  1 +
 terraform/locals.tf                 |  1 +
 terraform/variables.tf              | 16 ++++++++++++++++
 4 files changed, 19 insertions(+)

diff --git a/terraform/README.md b/terraform/README.md
index 2da22573b..a2d0d0a43 100644
--- a/terraform/README.md
+++ b/terraform/README.md
@@ -162,6 +162,7 @@ No resources.
 | <a name="input_container_health_probe_path"></a> [container\_health\_probe\_path](#input\_container\_health\_probe\_path) | Specifies the path that is used to determine the liveness of the Container | `string` | n/a | yes |
 | <a name="input_container_scale_http_concurrency"></a> [container\_scale\_http\_concurrency](#input\_container\_scale\_http\_concurrency) | When the number of concurrent HTTP requests exceeds this value, then another replica is added. Replicas continue to add to the pool up to the max-replicas amount. | `number` | `10` | no |
 | <a name="input_container_secret_environment_variables"></a> [container\_secret\_environment\_variables](#input\_container\_secret\_environment\_variables) | Container secret environment variables | `map(string)` | n/a | yes |
+| <a name="input_dns_mx_records"></a> [dns\_mx\_records](#input\_dns\_mx\_records) | DNS MX records to add to the DNS Zone | <pre>map(<br>    object({<br>      ttl : optional(number, 300),<br>      records : list(<br>        object({<br>          preference : number,<br>          exchange : string<br>        })<br>      )<br>    })<br>  )</pre> | `{}` | no |
 | <a name="input_dns_ns_records"></a> [dns\_ns\_records](#input\_dns\_ns\_records) | DNS NS records to add to the DNS Zone | <pre>map(<br>    object({<br>      ttl : optional(number, 300),<br>      records : list(string)<br>    })<br>  )</pre> | n/a | yes |
 | <a name="input_dns_txt_records"></a> [dns\_txt\_records](#input\_dns\_txt\_records) | DNS TXT records to add to the DNS Zone | <pre>map(<br>    object({<br>      ttl : optional(number, 300),<br>      records : list(string)<br>    })<br>  )</pre> | n/a | yes |
 | <a name="input_dns_zone_domain_name"></a> [dns\_zone\_domain\_name](#input\_dns\_zone\_domain\_name) | DNS zone domain name. If created, records will automatically be created to point to the CDN. | `string` | n/a | yes |
diff --git a/terraform/container-apps-hosting.tf b/terraform/container-apps-hosting.tf
index 812cab253..d6f3a2b98 100644
--- a/terraform/container-apps-hosting.tf
+++ b/terraform/container-apps-hosting.tf
@@ -17,6 +17,7 @@ module "azure_container_apps_hosting" {
   dns_zone_domain_name = local.dns_zone_domain_name
   dns_ns_records       = local.dns_ns_records
   dns_txt_records      = local.dns_txt_records
+  dns_mx_records       = local.dns_mx_records
 
   image_name                             = local.image_name
   container_command                      = local.container_command
diff --git a/terraform/locals.tf b/terraform/locals.tf
index 75719a322..2aac68db7 100644
--- a/terraform/locals.tf
+++ b/terraform/locals.tf
@@ -20,6 +20,7 @@ locals {
   dns_zone_domain_name                         = var.dns_zone_domain_name
   dns_ns_records                               = var.dns_ns_records
   dns_txt_records                              = var.dns_txt_records
+  dns_mx_records                               = var.dns_mx_records
   key_vault_access_ipv4                        = var.key_vault_access_ipv4
   tfvars_filename                              = var.tfvars_filename
   enable_monitoring                            = var.enable_monitoring
diff --git a/terraform/variables.tf b/terraform/variables.tf
index 41fafcd5c..e49e75be9 100644
--- a/terraform/variables.tf
+++ b/terraform/variables.tf
@@ -108,6 +108,22 @@ variable "dns_txt_records" {
   )
 }
 
+variable "dns_mx_records" {
+  description = "DNS MX records to add to the DNS Zone"
+  type = map(
+    object({
+      ttl : optional(number, 300),
+      records : list(
+        object({
+          preference : number,
+          exchange : string
+        })
+      )
+    })
+  )
+  default = {}
+}
+
 variable "enable_cdn_frontdoor" {
   description = "Enable Azure CDN FrontDoor. This will use the Container Apps endpoint as the origin."
   type        = bool