added terraform scripts

Terraform/main.tf

@@ -0,0 +1,152 @@
+provider "google" {
+  project = var.PROJECT_ID
+  region  = var.REGION
+}
+
+# random ID
+resource "random_id" "bucket_prefix" {
+  byte_length = 8
+}
+
+#resource "google_storage_bucket" "default" {
+#  name          = "tfstate-${random_id.bucket_prefix.hex}"
+#  force_destroy = false
+#  uniform_bucket_level_access = true
+#  location      = "US"
+#  storage_class = "STANDARD"
+#  versioning {
+#    enabled = false
+#  }
+#}
+
+#terraform {
+#  backend "gcs" {
+#    bucket = "tfstate-${random_id.bucket_prefix.hex}"
+#    prefix = "terraform/state"
+#  }
+#}
+
+# vpc  network
+resource "google_compute_network" "vpc_network" {
+  name                    = var.VPC_NAME
+  auto_create_subnetworks = false
+}
+
+resource "google_compute_subnetwork" "vpc_subnet" {
+  name          = "${var.VPC_NAME}-subnet"
+  region        = var.REGION
+  network       = google_compute_network.vpc_network.self_link
+  ip_cidr_range = "10.1.0.0/16"
+}
+
+resource "google_compute_firewall" "allow_http" {
+  name = "allow-http-${var.COMMON_NAME}"
+  network = google_compute_network.vpc_network.self_link
+  source_ranges = ["0.0.0.0/0"]
+  destination_ranges = ["0.0.0.0/0"]
+  allow {
+    protocol = "tcp"
+    ports    = ["80", "443"]
+  }
+}
+
+resource "google_compute_firewall" "allow_redis" {
+  name    = "allow-redis-${var.COMMON_NAME}"
+  network = google_compute_network.vpc_network.self_link
+  source_ranges = ["0.0.0.0/0"]
+  destination_ranges = ["0.0.0.0/0"]
+  allow {
+    protocol = "tcp"
+    ports    = ["6379", "6380"]
+  }
+}
+
+# pub/sub
+resource "google_pubsub_topic" "spanner_topic" {
+  name = "${var.SPANNER_TOPIC}"
+}
+
+resource "google_pubsub_subscription" "spanner_topic_sub" {
+  name = "${var.SPANNER_TOPIC}-sub"
+  topic = google_pubsub_topic.spanner_topic.name
+}
+
+resource "google_pubsub_topic" "simulator_topic" {
+  name = "${var.SIMULATOR_TOPIC}"
+}
+
+resource "google_pubsub_subscription" "simulator_topic_sub" {
+  name = "${var.SIMULATOR_TOPIC}-sub"
+  topic = google_pubsub_topic.simulator_topic.name
+}
+
+resource "google_pubsub_topic" "redis_topic" {
+  name = "${var.REDIS_TOPIC}"
+}
+
+resource "google_pubsub_subscription" "redis_topic_sub" {
+  name = "${var.REDIS_TOPIC}-sub"
+  topic = google_pubsub_topic.redis_topic.name
+}
+
+resource "google_pubsub_topic" "score_topic" {
+  name = "${var.SCORE_TOPIC}"
+}
+
+resource "google_pubsub_subscription" "score_topic_sub" {
+  name = "${var.SCORE_TOPIC}-sub"
+  topic = google_pubsub_topic.score_topic.name
+}
+
+# memory store - redis
+resource "google_redis_instance" "redis_instance" {
+  name               = var.REDIS_INST_NAME
+  tier               = "BASIC"
+  memory_size_gb     = 5
+  authorized_network = google_compute_network.vpc_network.self_link
+}
+
+# Spanner
+resource "google_spanner_instance" "spanner_instance" {
+  name         = var.SPANNER_INST_NAME
+  config       = "regional-${var.REGION}"
+  display_name = var.SPANNER_INST_NAME
+  processing_units = 200
+}
+
+resource "google_spanner_database" "spanner_database" {
+  instance = google_spanner_instance.spanner_instance.name
+  name     = var.SPANNER_DB_NAME
+  deletion_protection = false
+}
+
+# GKE
+resource "google_container_cluster" "gke_cluster" {
+  name     = var.GKE_CLUSTER_NAME
+  location = var.REGION
+  network    = google_compute_network.vpc_network.name
+  subnetwork = google_compute_subnetwork.vpc_subnet.name
+  remove_default_node_pool = true
+  initial_node_count       = 1
+  enable_ip_masq = true
+}
+
+resource "google_container_node_pool" "gke_node_pool" {
+  name = "${var.GKE_CLUSTER_NAME}-default"
+  location = var.REGION
+  cluster = google_container_cluster.gke_cluster.name
+  node_count = 1
+
+  node_config {
+    preemptible  = true    
+    machine_type = "e2-medium"
+    oauth_scopes = [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/compute",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/logging.write",
+      "https://www.googleapis.com/auth/monitoring",
+    ]
+  }
+}
+

Terraform/terraform.tfvars

@@ -0,0 +1 @@
+PROJECT_ID = <GCP Project ID>

Terraform/variables.tf

@@ -0,0 +1,59 @@
+variable "PROJECT_ID" {
+  type        = string
+  description = "GCP project ID"
+}
+
+variable "COMMON_NAME" {
+  type    = string
+  default = "game-demo"
+}
+
+variable "REGION" {
+  type    = string
+  default = "us-west1"
+}
+
+variable "VPC_NAME" {
+  type    = string
+  default = "vpc-game-demo"
+}
+
+variable "SPANNER_TOPIC" {
+  type    = string
+  default = "pushToSpannerTest"
+}
+
+variable "SIMULATOR_TOPIC" {
+  type    = string
+  default = "simulatorTest"
+}
+
+variable "REDIS_TOPIC" {
+  type    = string
+  default = "updateRedisTest"
+}
+
+variable "SCORE_TOPIC" {
+  type    = string
+  default = "updateScoreTest"
+}
+
+variable "REDIS_INST_NAME" {
+  type    = string
+  default = "redis-test"
+}
+
+variable "SPANNER_INST_NAME" {
+  type    = string
+  default = "game-demo-inst"
+}
+
+variable "SPANNER_DB_NAME" {
+  type    = string
+  default = "game-demo-db"
+}
+
+variable "GKE_CLUSTER_NAME" {
+  type    = string
+  default = "game-demo-cluster"
+}