Add sandbox for experimentation

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     = ""
 }