fixtures.eu-west-2.tfvars

region = "eu-west-2"
availability_zones = ["eu-west-2a", "eu-west-2b", "eu-west-2c"]
namespace = "eg"
stage = "test"
name = "subnets-vpc-test"
existing_nat_ips = ["18.133.71.173", "35.177.115.101", "35.177.223.95"]

main.tf

provider "aws" {
  region = var.region
}
module "vpc" {
  source     = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.8.1"
  namespace  = var.namespace
  stage      = var.stage
  name       = var.name
  cidr_block = "10.16.0.0/16"
}
module "subnets" {
  source               = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=0.30.0"
  availability_zones   = var.availability_zones
  namespace            = var.namespace
  stage                = var.stage
  name                 = var.name
  vpc_id               = module.vpc.vpc_id
  igw_id               = module.vpc.igw_id
  cidr_block           = module.vpc.vpc_cidr_block
  existing_nat_ips     = var.existing_nat_ips
  nat_instance_type    = "t2.micro"
  nat_gateway_enabled  = false
  nat_instance_enabled = true
}

variables.tf

variable "region" {
  type        = string
  description = "AWS region"
}
variable "availability_zones" {
  type        = list(string)
  description = "List of Availability Zones where subnets will be created"
}
variable "namespace" {
  type        = string
  description = "Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp'"
}
variable "stage" {
  type        = string
  description = "Stage, e.g. 'prod', 'staging', 'dev', or 'test'"
}
variable "name" {
  type        = string
  description = "Solution/application name, e.g. 'app' or 'cluster'"
}
variable "existing_nat_ips" {
  type        = list(string)
  default     = []
  description = "Existing Elastic IPs to attach to the NAT Gateway or Instance instead of creating a new one."
}