如何避免 terraform vpc 模块为每个子网创建路由表？

Question

我使用官方的 vpc 模块创建了 vpc 及其组件，如下所示。问题是每个子网都有自己的路由表。我想创建 2 个路由表让我们说私有和公共并将子网附加到它。 rt-私有：子网1，子网2 rt-public：subnet3,subnet4

module "vpc" {
  source          = "terraform-aws-modules/vpc/aws"
  version         = "2.77.0"
  name            = "${var.vpc_name}"
  cidr            = "${var.vpc_cidr}"
  azs             = "${var.azs}"
  private_subnets = "${var.private_subnets}"
  #public_subnets  = "${var.public_subnets}"

  enable_dns_hostnames = true
  enable_dns_support   = true

  enable_nat_gateway = false
  #  single_nat_gateway = true
  create_igw = false

  vpc_tags = {
    Environment = "${var.env}"
    Automated   = "Terraform"
    Owner       = "${var.owner}"
    Project     = "${var.project}"
  }

  private_subnet_tags = {
    Environment = "${var.env}"
    Automated   = "Terraform"
    Owner       = "${var.owner}"
    Project     = "${var.project}"
  }

  public_subnet_tags = {
    Environment = "${var.env}"
    Automated   = "Terraform"
    Owner       = "${var.owner}"
    Project     = "${var.project}"
  }

  private_route_table_tags = {
    #Name        = "${var.private_route_table_tags}"
    Environment = "${var.env}"
    Automated   = "Terraform"
    Owner       = "${var.owner}"
    Project     = "${var.project}"
  }
}