AWS VPC Terraform Module

This Terraform module creates a fully configured Virtual Private Cloud (VPC) in AWS, complete with public and private subnets, internet gateway, NAT gateway, eip, route tables, network ACLs, and security groups.

Features

• Creates a VPC with the specified CIDR block
• Configurable number of public and private subnets
• Optional NAT Gateway for private subnets
• Internet Gateway for public subnets
• Custom Network ACLs
• Custom Security Groups

Requirements

• Terraform >= 0.12

Usage

Example

module "custom_vpc" {
  source                      = "../../"
  vpc_cidr                    = "10.0.0.0/16"
  region                      = "eu-west-1"
  vpc_name                    = "my-vpc"
  igw                         = "my-igw"
  public_subnet_cidr          = ["10.0.1.0/24"]
  private_subnet_cidr         = ["10.0.2.0/24"]
  availability_zones          = ["eu-west-1a", "eu-west-1b", "eu-west-1c"]
  container_subnet_cidr       = "10.0.7.0/24"
  nat_gateway                 = "my-nat-gateway"
  nat_eip                     = "my-nat-eip"
  nacl                        = "my-nacl"
  security_group              = "my-security-group"
  environment                 = "dev"
  environment_type            = "test"
  enable_public_subnets       = true
  enable_private_subnets      = true
  enable_container_subnet     = true
  enable_nat_gateway          = true
  enable_ingress              = true
  enable_egress               = true

  vpc_tags = {
    "Department" = "Engineering"
    "Owner"      = "xx"
  }

  tags = {
    "Project" = "xx"
    "Team"    = "xx"
  }
}

Resource Documentation

aws_vpc

Creates an AWS VPC with the specified CIDR block and tags.

aws_internet_gateway

Creates an Internet Gateway and attaches it to the VPC.

data.aws_availability_zones

Fetches the list of available availability zones in the specified region.

aws_subnet (Public, Private, Container)

Creates subnets (public, private, container) within the VPC, using the specified CIDR blocks and availability zones.

aws_route_table

Creates a route table for public subnets, with a default route to the Internet Gateway.

aws_route_table_association

Associates the public subnets with the public route table.

aws_nat_gateway

Creates a NAT Gateway in the first public subnet, if enabled.

aws_eip

Creates an Elastic IP for the NAT Gateway, if enabled.

aws_network_acl

Creates a Network ACL with custom inbound and outbound rules.

aws_network_acl_rule

Creates inbound and outbound rules for the Network ACL.

aws_network_acl_association

Associates the Network ACL with the public subnets.

aws_security_group

Creates a security group with custom ingress and egress rules.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

• Terraform AWS Provider Documentation

Author

• Sam O

Requirements

Providers

Modules

No modules.

Resources

Inputs

[
  "eu-west-1a",
  "eu-west-1b",
  "eu-west-1c"
]

[
  "10.0.2.0/24"
]

[
  "10.0.1.0/24"
]

Outputs