Add sandbox for experimentation

examples/cloud-sql-mysql/main.tf

@@ -0,0 +1,78 @@
+provider "google-beta" {
+  region = "${var.region}"
+  project = "${var.project}"
+}
+
+# Use Terraform 0.10.x so that we can take advantage of Terraform GCP functionality as a separate provider via
+# https://github.com/terraform-providers/terraform-provider-google
+terraform {
+  required_version = ">= 0.10.3"
+}
+
+variable "region" {
+  default = "europe-north1"
+}
+
+variable "project" {
+  default = "dev-sandbox-228703"
+}
+
+
+variable "zone" {
+  default = "europe-north1-a"
+}
+
+variable "mysql_version" {
+  default = "MYSQL_5_6"
+}
+
+resource "random_id" "name" {
+  byte_length = 2
+}
+
+resource "google_compute_network" "private_network" {
+  provider = "google-beta"
+  name       = "private-network"
+}
+
+resource "google_compute_global_address" "private_ip_address" {
+  provider = "google-beta"
+  name          = "private-ip-address"
+  purpose       = "VPC_PEERING"
+  address_type = "INTERNAL"
+  prefix_length = 16
+  network       = "${google_compute_network.private_network.self_link}"
+}
+
+resource "google_service_networking_connection" "private_vpc_connection" {
+  provider = "google-beta"
+  network       = "${google_compute_network.private_network.self_link}"
+  service       = "servicenetworking.googleapis.com"
+  reserved_peering_ranges = ["${google_compute_global_address.private_ip_address.name}"]
+}
+
+
+module "mysql-db" {
+  source           = "../../modules/cloud-sql"
+  name             = "example-mysql-${random_id.name.hex}"
+  region = "${var.region}"
+  engine = "${var.mysql_version}"
+  project = "${var.project}"
+  machine_type = "db-f1-micro"
+
+  ip_configuration = [
+    {
+      ipv4_enabled = "true"
+      private_network = "${google_compute_network.private_network.self_link}"
+    }
+  ]
+
+  # https://cloud.google.com/sql/docs/mysql/flags
+  flags = [
+  ]
+}
+
+output "mysql_conn" {
+  value = "${var.project}:${var.region}:${module.mysql-db.instance_name}"
+}
+

examples/sandbox/main.tf

@@ -0,0 +1,45 @@
+provider "google-beta" {
+  region = "${var.region}"
+}
+
+variable "region" {
+  default = "europe-north1"
+}
+
+variable "project" {
+  default = "petri-sandbox"
+}
+
+variable "endpoints" {
+  type = "list"
+  default = ["192.168.11.1", "192.168.11.2"]
+}
+
+data "template_file" "single_ip" {
+  count    = "${length(var.endpoints)}"
+  template = <<YAML
+    {
+      name  = "$${name}"
+      value = "$${val}"
+    }
+YAML
+  vars {
+    name = "network-${count.index}"
+    val = "${var.endpoints[count.index]}"
+  }
+}
+
+output "demo" {
+  value = "${data.template_file.ip_configuration.rendered}"
+}
+
+data "template_file" "ip_configuration" {
+  template = <<YAML
+    authorized_endpoints = [
+      $${cidrs}
+    ]
+YAML
+  vars {
+    cidrs = "${join(",", var.endpoints)}"
+  }
+}

modules/cloud-sql/main.tf

@@ -0,0 +1,61 @@
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# DEPLOY A CLOUD SQL CLUSTER
+# This module deploys an Cloud SQL cluster. The cluster is managed by Google and automatically handles leader
+# election, replication, failover, backups, patching, and encryption.
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+# ------------------------------------------------------------------------------
+# CREATE THE CLOUD SQL CLUSTER
+#
+# NOTE: We have multiple google_sql_database_instance resources, based on
+# HA, encryption and replication configuration options.
+# ------------------------------------------------------------------------------
+
+resource "google_sql_database_instance" "default" {
+  name                 = "${var.name}"
+  project              = "${var.project}"
+  region               = "${var.region}"
+  database_version     = "${var.engine}"
+  master_instance_name = "${var.master_instance_name}"
+
+  settings {
+    tier                        = "${var.machine_type}"
+    activation_policy           = "${var.activation_policy}"
+    authorized_gae_applications = ["${var.authorized_gae_applications}"]
+    disk_autoresize             = "${var.disk_autoresize}"
+    backup_configuration        = ["${var.backup_configuration}"]
+    ip_configuration            = ["${var.ip_configuration}"]
+    location_preference         = ["${var.location_preference}"]
+    maintenance_window          = ["${var.maintenance_window}"]
+    disk_size                   = "${var.disk_size}"
+    disk_type                   = "${var.disk_type}"
+    pricing_plan                = "${var.pricing_plan}"
+    replication_type            = "${var.replication_type}"
+    database_flags              = ["${var.flags}"]
+    availability_type           = "${var.availability_type}"
+  }
+
+  replica_configuration = ["${var.replica_configuration}"]
+}
+
+# ------------------------------------------------------------------------------
+# CREATE A DATABASE
+# ------------------------------------------------------------------------------
+
+resource "google_sql_database" "default" {
+  count     = "${var.master_instance_name == "" ? 1 : 0}"
+  name      = "${var.db_name}"
+  project   = "${var.project}"
+  instance  = "${google_sql_database_instance.default.name}"
+  charset   = "${var.db_charset}"
+  collation = "${var.db_collation}"
+}
+
+resource "google_sql_user" "default" {
+  count    = "${var.master_instance_name == "" ? 1 : 0}"
+  name     = "${var.db_name}"
+  project  = "${var.project}"
+  instance = "${google_sql_database_instance.default.name}"
+  host     = "${var.db_user_host}"
+  password = "${var.db_password}"
+}

modules/cloud-sql/outputs.tf

@@ -0,0 +1,19 @@
+output instance_name {
+  description = "The name of the database instance"
+  value       = "${google_sql_database_instance.default.name}"
+}
+
+output instance_address {
+  description = "The IPv4 address of the master database instance"
+  value       = "${google_sql_database_instance.default.ip_address.0.ip_address}"
+}
+
+output instance_address_time_to_retire {
+  description = "The time the master instance IP address will be reitred. RFC 3339 format."
+  value       = "${google_sql_database_instance.default.ip_address.0.time_to_retire}"
+}
+
+output self_link {
+  description = "Self link to the master instance"
+  value       = "${google_sql_database_instance.default.self_link}"
+}

modules/cloud-sql/variables.tf

@@ -29,6 +29,11 @@ variable "machine_type" {
   default     = "db-f1-micro"
 }
 
+variable "availability_type" {
+  description = "This specifies whether a PostgreSQL instance should be set up for high availability (REGIONAL) or single zone (ZONAL)."
+  default     = "ZONAL"
+}
+
 variable "db_name" {
   description = "Name of the default database to create"
   default     = "default"
@@ -44,17 +49,17 @@ variable "db_collation" {
   default     = ""
 }
 
-variable "master_user_name" {
+variable "db_user" {
   description = "The name of the default user"
   default     = "default"
 }
 
-variable "master_user_host" {
+variable "db_user_host" {
   description = "The host for the default user"
   default     = "%"
 }
 
-variable "master_user_password" {
+variable "db_password" {
   description = "The password for the default user."
   default     = ""
 }