Add a private redis instance.

terraform/basic_gke/main.tf

@@ -261,3 +261,27 @@ module "cloudsql" {
     module.networking
   ]
 }
+
+#################### Redis ################################
+
+module "redis" {
+  source             = "../modules/redis"
+  project            = var.project
+  region             = var.region
+  private_network_id = module.networking.private_network_id
+
+  depends_on = [
+    module.networking
+  ]
+}
+
+output "redis_host" {
+  description = "Hostname/IP Address for redis database."
+  value       = module.redis.redis_host
+}
+
+output "redis_port" {
+  description = "Port for redis database."
+  value       = module.redis.redis_port
+}
+

terraform/modules/redis/redis.tf

@@ -0,0 +1,46 @@
+variable "project" {
+  description = "Project ID."
+  type        = string
+}
+
+variable "region" {
+  description = "Region."
+  type        = string
+}
+
+variable "private_network_id" {
+  description = "Private network id."
+  type        = string
+}
+
+output "redis_host" {
+  description = "Hostname/IP Address for redis database."
+  value       = google_redis_instance.cache.host
+}
+
+output "redis_port" {
+  description = "Port for redis database."
+  value       = google_redis_instance.cache.port
+}
+
+resource "google_project_service" "redis" {
+  project                    = var.project
+  service                    = "redis.googleapis.com"
+  disable_dependent_services = true
+}
+
+resource "google_redis_instance" "cache" {
+  project            = var.project
+  region             = var.region
+  name               = "private-cache"
+  display_name       = "Private redis cache database."
+  tier               = "STANDARD_HA"
+  memory_size_gb     = 1
+  authorized_network = var.private_network_id
+  connect_mode       = "PRIVATE_SERVICE_ACCESS"
+  redis_version      = "REDIS_5_0"
+
+  depends_on = [
+    google_project_service.redis
+  ]
+}