Terraform AWS VPC Module

A Terraform module to create the following resources within AWS:

• A Virtual Private Cloud (VPC)
• An Internet Gateway
• A set of public and private subnets - across availability zones within the region
• A public and a private route table - with routes connecting the respective subnets, and the internet gateway connected to the public subnet

Input Variables

• name - (Mandatory) The name of the VPC
• cidr_block - (Mandatory) The IP address range allocated to the VPC
• owner - (Optional) Owner tag added to the VPC in order to identify who built the resource, defaults to 'Terraform'
• enable_dns_support - (Optional) Whether or not the VPC has DNS support, defaults to 'false'
• enable_dns_hostnames - (Optional) Whether or not the VPC has DNS hostname support, defaults to 'false'
• subnets_public - (Mandatory) A comma separated list of public subnets, one for each availability zone
• subnets_private - (Mandatory) A comma separated list of private subnets, one for each availability zone
• availability_zones - (Mandatory) A comma separated list of availability zones to place the subnets into

Output Variables

• id - The VPC id
• private_subnets - The list of private subnets that are setup
• public_subnets - The list of public subnets that are setup
• private_availability_zones - The list of private availability zones that are setup
• public_availability_zones - The list of public availability zones that are setup

Usage

variable "vpc_name" { default = "MY_VPC" }
variable "vpc_cidr_block" { default = "10.10.0.0/16" }
variable "vpc_enable_dns_support" { default = true }
variable "vpc_subnets_public" { default = "10.10.0.0/20,10.10.16.0/20,10.10.32.0/20" }
variable "vpc_subnets_private" { default = "10.10.48.0/20,10.10.64.0/20,10.10.80.0/20" }
variable "vpc_availability_zones" { default = "region-1a,region-1b,region-1c" }

module "my_vpc" {
  source = "github.com/mambetica/tf_aws_vpc"
  name = "${var.vpc_name}"
  cidr_block = "${var.vpc_cidr_block}"
  enable_dns_support = "${var.vpc_enable_dns_support}"
  subnets_public = "${var.vpc_subnets_public}"
  subnets_private = "${var.vpc_subnets_private}"
  availability_zones = "${var.vpc_availability_zones}"
}