Terraform: Building out an Application Environment in AWS

Everyone loves the cloud

Today we’re going to utilize Terraform to build out a scalable, fault tolerant infrastructure for our application. Most of my experience is in CloudFormation and Ansible, so I figured I’d give Terraform a try as I have heard good things.

The environment will build looks like the diagram below, which has the following features:

• A VPC that creates an isolated environment
• An Internet Gateway to connect our VPC to the web
• An internet facing Application Load Balancer to access our web servers
• Public subnets for NAT GW’s and Bastion ASG’s
• Private subnets for Web Server ASG’s
• NAT GW’s for web servers in the private subnet to access the web
• ASG’s running ec2 configured with nginx
• ASG running ec2 configured with ubuntu (as our Bastion)

The environment to be created with terraform

The end goal is to have a load balancer that we can hit in our browser and successfully load a web page served up by an ec2 instance running nginx.

Installing Terraform