Update Terraform container app module to 1.6.3 (#571)

* Updated to version 1.6.3 of the Container App Module

* Deploy MX Records

terraform/README.md

@@ -136,7 +136,7 @@ No providers.
 
 | Name | Source | Version |
 |------|--------|---------|
-| <a name="module_azure_container_apps_hosting"></a> [azure\_container\_apps\_hosting](#module\_azure\_container\_apps\_hosting) | github.com/DFE-Digital/terraform-azurerm-container-apps-hosting | v1.6.1 |
+| <a name="module_azure_container_apps_hosting"></a> [azure\_container\_apps\_hosting](#module\_azure\_container\_apps\_hosting) | github.com/DFE-Digital/terraform-azurerm-container-apps-hosting | v1.6.3 |
 | <a name="module_azurerm_key_vault"></a> [azurerm\_key\_vault](#module\_azurerm\_key\_vault) | github.com/DFE-Digital/terraform-azurerm-key-vault-tfvars | v0.4.1 |
 | <a name="module_data_protection"></a> [data\_protection](#module\_data\_protection) | github.com/DFE-Digital/terraform-azurerm-aspnet-data-protection | v1.0.0 |
 | <a name="module_statuscake-tls-monitor"></a> [statuscake-tls-monitor](#module\_statuscake-tls-monitor) | github.com/dfe-digital/terraform-statuscake-tls-monitor | v0.1.3 |
@@ -165,6 +165,7 @@ No resources.
 | <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_a_records"></a> [dns\_a\_records](#input\_dns\_a\_records) | DNS A 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_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 |

terraform/container-apps-hosting.tf

@@ -1,5 +1,5 @@
 module "azure_container_apps_hosting" {
-  source = "github.com/DFE-Digital/terraform-azurerm-container-apps-hosting?ref=v1.6.1"
+  source = "github.com/DFE-Digital/terraform-azurerm-container-apps-hosting?ref=v1.6.3"
 
   environment    = local.environment
   project_name   = local.project_name
@@ -31,6 +31,7 @@ module "azure_container_apps_hosting" {
   dns_ns_records       = local.dns_ns_records
   dns_txt_records      = local.dns_txt_records
   dns_a_records        = local.dns_a_records
+  dns_mx_records       = local.dns_mx_records
 
   enable_cdn_frontdoor                        = local.enable_cdn_frontdoor
   cdn_frontdoor_forwarding_protocol           = local.cdn_frontdoor_forwarding_protocol

terraform/locals.tf

@@ -23,6 +23,7 @@ locals {
   dns_ns_records                               = var.dns_ns_records
   dns_txt_records                              = var.dns_txt_records
   dns_a_records                                = var.dns_a_records
+  dns_mx_records                               = var.dns_mx_records
   restrict_container_apps_to_cdn_inbound_only  = var.restrict_container_apps_to_cdn_inbound_only
   container_apps_allow_ips_inbound             = var.container_apps_allow_ips_inbound
   cdn_frontdoor_enable_rate_limiting           = var.cdn_frontdoor_enable_rate_limiting

terraform/variables.tf

@@ -185,6 +185,22 @@ 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 "cdn_frontdoor_forwarding_protocol" {
   description = "Azure CDN Front Door forwarding protocol"
   type        = string