main.tf

//
// Module: tf_aws_rds
//

// This template creates the following resources
// - An RDS instance
// - A database subnet group
// - You should want your RDS instance in a VPC

// Provider specific configs
provider "aws" {
    access_key = "${var.aws_access_key}"
    secret_key = "${var.aws_secret_key}"
    region = "${var.aws_region}"
}

resource "aws_db_instance" "main_rds_instance" {
    identifier = "${var.rds_instance_name}"
    allocated_storage = "${var.rds_allocated_storage}"
    engine = "${var.rds_engine_type}"
    engine_version = "${var.rds_engine_version}"
    instance_class = "${var.rds_instance_class}"
    name = "${var.database_name}"
    username = "${var.database_user}"
    password = "${var.database_password}"
    // Because we're assuming a VPC, we use this option, but only one SG id
    vpc_security_group_ids = ["${var.rds_security_group_id}"]
    // We're creating a subnet group in the module and passing in the name
    db_subnet_group_name = "${aws_db_subnet_group.main_db_subnet_group.name}"
    parameter_group_name = "${var.db_parameter_group}"
    // We want the multi-az setting to be toggleable, but off by default
    multi_az = "${var.rds_is_multi_az}"
    storage_type = "${var.rds_storage_type}"
}

resource "aws_db_subnet_group" "main_db_subnet_group" {
    name = "${var.rds_instance_name}-subnetgrp"
    description = "RDS subnet group"
    subnet_ids = ["${var.subnet_az1}", "${var.subnet_az2}"]
}