Amazon AWS VPC

This Terraform configuration creates:

• Amazon AWS VPC
• Internet Gateway
• Subnets in all configured availability zones and routing tables linking them to the Internet Gateway

Additionally, if variable private_subnets is set to true, it will create:

• NAT with Elastic IP address in each availability zone
• Private subnet in each availability zone with routing tables linking them to the NAT

This configuration uses my own module from Terraform Module Registry.

• Amazon AWS VPC
  • Prerequisites and dependencies
  • Configuration
  • Creating the VPC
  • Deleting the VPC

Prerequisites and dependencies

There are no other dependencies apart from Terraform.

Configuration

Option	Explanation	Example
aws_region	AWS region which should be used	eu-central-1
aws_zones	List of AWS availability zones which should be used	["eu-central-1a", "eu-central-1b"]
vpc_name	Name of the VPC which should ve created	my-vpc
vpc_cidr	CIDR address which should be used	10.0.0.0/16
tags	Tags which should be applied to all resources	{ Hello = "World" }
private_subnets	Create also private subnets with NAT in every avaialbility zone	false or true

Creating the VPC

To create the VPC,

• Export AWS credentials into environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
• Apply Terraform configuration:

terraform init
terraform apply --var-file example.tfvars

Deleting the VPC

To delete the VPC,

• Export AWS credentials into environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
• Destroy Terraform configuration:

terraform destroy --var-file example.tfvars