From df7a8439f5e51da0fbc6e786b859df073a1151b1 Mon Sep 17 00:00:00 2001
From: Ash Davies <3853061+DrizzlyOwl@users.noreply.github.com>
Date: Thu, 16 Jan 2025 12:08:04 +0000
Subject: [PATCH] Deploy Redis Cache

---
 terraform/README.md                 |  2 ++
 terraform/container-apps-hosting.tf |  3 +++
 terraform/locals.tf                 |  2 ++
 terraform/variables.tf              | 11 +++++++++++
 4 files changed, 18 insertions(+)

diff --git a/terraform/README.md b/terraform/README.md
index 90f8fde70..e28bc8a8f 100644
--- a/terraform/README.md
+++ b/terraform/README.md
@@ -190,6 +190,7 @@ No resources.
 | <a name="input_enable_health_insights_api"></a> [enable\_health\_insights\_api](#input\_enable\_health\_insights\_api) | Deploys a Function App that exposes the last 3 HTTP Web Tests via an API endpoint. 'enable\_app\_insights\_integration' and 'enable\_monitoring' must be set to 'true'. | `bool` | `false` | no |
 | <a name="input_enable_logstash_consumer"></a> [enable\_logstash\_consumer](#input\_enable\_logstash\_consumer) | Create an Event Hub consumer group for Logstash | `bool` | `false` | no |
 | <a name="input_enable_monitoring"></a> [enable\_monitoring](#input\_enable\_monitoring) | Create an App Insights instance and notification group for the Container App | `bool` | n/a | yes |
+| <a name="input_enable_redis_cache"></a> [enable\_redis\_cache](#input\_enable\_redis\_cache) | Set to true to create an Azure Redis Cache, with a private endpoint within the virtual network | `bool` | n/a | yes |
 | <a name="input_environment"></a> [environment](#input\_environment) | Environment name. Will be used along with `project_name` as a prefix for all resources. | `string` | n/a | yes |
 | <a name="input_eventhub_export_log_analytics_table_names"></a> [eventhub\_export\_log\_analytics\_table\_names](#input\_eventhub\_export\_log\_analytics\_table\_names) | List of Log Analytics table names that you want to export to Event Hub. See https://learn.microsoft.com/en-gb/azure/azure-monitor/logs/logs-data-export?tabs=portal#supported-tables for a list of supported tables | `list(string)` | `[]` | no |
 | <a name="input_existing_logic_app_workflow"></a> [existing\_logic\_app\_workflow](#input\_existing\_logic\_app\_workflow) | Name, and Resource Group of an existing Logic App Workflow. Leave empty to create a new Resource | <pre>object({<br/>    name : string<br/>    resource_group_name : string<br/>  })</pre> | <pre>{<br/>  "name": "",<br/>  "resource_group_name": ""<br/>}</pre> | no |
@@ -202,6 +203,7 @@ No resources.
 | <a name="input_monitor_email_receivers"></a> [monitor\_email\_receivers](#input\_monitor\_email\_receivers) | A list of email addresses that should be notified by monitoring alerts | `list(string)` | n/a | yes |
 | <a name="input_monitor_endpoint_healthcheck"></a> [monitor\_endpoint\_healthcheck](#input\_monitor\_endpoint\_healthcheck) | Specify a route that should be monitored for a 200 OK status | `string` | n/a | yes |
 | <a name="input_project_name"></a> [project\_name](#input\_project\_name) | Project name. Will be used along with `environment` as a prefix for all resources. | `string` | n/a | yes |
+| <a name="input_redis_cache_sku"></a> [redis\_cache\_sku](#input\_redis\_cache\_sku) | Redis Cache SKU | `string` | `"Basic"` | no |
 | <a name="input_registry_admin_enabled"></a> [registry\_admin\_enabled](#input\_registry\_admin\_enabled) | Do you want to enable access key based authentication for your Container Registry? | `bool` | `true` | no |
 | <a name="input_registry_managed_identity_assign_role"></a> [registry\_managed\_identity\_assign\_role](#input\_registry\_managed\_identity\_assign\_role) | Assign the 'AcrPull' Role to the Container App User-Assigned Managed Identity. Note: If you do not have 'Microsoft.Authorization/roleAssignments/write' permission, you will need to manually assign the 'AcrPull' Role to the identity | `bool` | `false` | no |
 | <a name="input_registry_server"></a> [registry\_server](#input\_registry\_server) | Container registry server | `string` | `""` | no |
diff --git a/terraform/container-apps-hosting.tf b/terraform/container-apps-hosting.tf
index 99ad9906f..596eccdf0 100644
--- a/terraform/container-apps-hosting.tf
+++ b/terraform/container-apps-hosting.tf
@@ -36,6 +36,9 @@ module "azure_container_apps_hosting" {
   health_insights_api_ipv4_allow_list    = local.health_insights_api_ipv4_allow_list
   enable_container_app_file_share        = local.enable_container_app_file_share
 
+  enable_redis_cache = local.enable_redis_cache
+  redis_cache_sku    = local.redis_cache_sku
+
   enable_cdn_frontdoor                            = local.enable_cdn_frontdoor
   cdn_frontdoor_forwarding_protocol               = local.cdn_frontdoor_forwarding_protocol
   cdn_frontdoor_origin_host_header_override       = local.cdn_frontdoor_origin_host_header_override
diff --git a/terraform/locals.tf b/terraform/locals.tf
index b06200fc0..48297ddc4 100644
--- a/terraform/locals.tf
+++ b/terraform/locals.tf
@@ -16,6 +16,8 @@ locals {
   container_max_replicas                          = var.container_max_replicas
   container_scale_http_concurrency                = var.container_scale_http_concurrency
   container_port                                  = var.container_port
+  enable_redis_cache                              = var.enable_redis_cache
+  redis_cache_sku                                 = var.redis_cache_sku
   enable_event_hub                                = var.enable_event_hub
   enable_logstash_consumer                        = var.enable_logstash_consumer
   eventhub_export_log_analytics_table_names       = var.eventhub_export_log_analytics_table_names
diff --git a/terraform/variables.tf b/terraform/variables.tf
index d9c0beffa..d129e29b5 100644
--- a/terraform/variables.tf
+++ b/terraform/variables.tf
@@ -389,3 +389,14 @@ variable "container_port" {
   type        = number
   default     = 8080
 }
+
+variable "enable_redis_cache" {
+  description = "Set to true to create an Azure Redis Cache, with a private endpoint within the virtual network"
+  type        = bool
+}
+
+variable "redis_cache_sku" {
+  description = "Redis Cache SKU"
+  type        = string
+  default     = "Basic"
+}