module "vpc" {
  source = "github.com/terraform-community-modules/tf_aws_vpc_only?ref=master"

  name                 = "tf-aws-vpn-example-vpc"
  cidr                 = "${var.vpc_cidr}"
  enable_dns_support   = true
  enable_dns_hostnames = true
}

module "vpn" {
  source = "github.com/terraform-community-modules/tf_aws_vpn_gw"

  name   = "tf-aws-vpn-example"
  vpc_id = "${module.vpc.vpc_id}"
}