add master_instance_name (for replica) + databse_tags

Author: Adrian Lopez

main.tf

@@ -15,10 +15,11 @@
  */
 
 resource "google_sql_database_instance" "master" {
-  name             = "${var.name}"
-  project          = "${var.project}"
-  region           = "${var.region}"
-  database_version = "${var.database_version}"
+  name                 = "${var.name}"
+  project              = "${var.project}"
+  region               = "${var.region}"
+  database_version     = "${var.database_version}"
+  master_instance_name = "${var.master_instance_name}"
 
   settings {
     tier                        = "${var.tier}"
@@ -33,6 +34,7 @@ resource "google_sql_database_instance" "master" {
     disk_type                   = "${var.disk_type}"
     pricing_plan                = "${var.pricing_plan}"
     replication_type            = "${var.replication_type}"
+    database_flags              = ["${var.database_flags}"]
   }
 
   replica_configuration = ["${var.replica_configuration}"]

variables.tf

@@ -33,6 +33,11 @@ variable database_version {
   default     = "MYSQL_5_6"
 }
 
+variable master_instance_name {
+  description = "The name of the master instance to replicate"
+  default     = ""
+}
+
 variable tier {
   description = "The machine tier (First Generation) or type (Second Generation). See this page for supported tiers and pricing: https://cloud.google.com/sql/pricing"
   default     = "db-f1-micro"
@@ -104,6 +109,11 @@ variable replication_type {
   default     = "SYNCHRONOUS"
 }
 
+variable database_flags {
+  description = "List of Cloud SQL flags that are applied to the database server"
+  default     = []
+}
+
 variable backup_configuration {
   description = "The backup_configuration settings subblock for the database setings"
   type        = "map"