Deploy a single AZ network for 3-tier application in AWS using Terraform

• Create a single AZ VPC with 3 subnets: web (public), app (private) & database (private)

• Create Internet Gateway, NAT Gateway and routes

• Create segurity groups for VPC and subnets

• Create bastion servers (Linux & Windows) in the web public subnet and security groups

Files:

• auth-variables.tf --> AWS authentication variables

• bastion-linux.tf --> Linux Bastion

• bastion-windows.tf --> Windows Bastion

• common-variables.tf --> Common variables (app name, environment, etc)

• network-main.tf --> Create network components (VPC, Subnets, etc)

• network-variables.tf --> Variables for network components

• security-main.tf --> Security groups for all subnets

• terraform.tfvars --> AWS authentication variables

Note: remove the bastion-windows.tf and/or the bastion-linux.tf if you don't need access to private subnets