Simple Terraform example that provisions a Linux 2 EC2 Instance and installs Nginx on it.

install_choco_and_packages.ps1

#Install Chocolatey
Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))

#Install Packages
choco install terraform -y
choco install awscli -y

#Refresh Environment Variables
$env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine")

main.tf

provider "aws" {
  region = "us-west-2"
}

resource "aws_security_group" "instance" {
  name = "terraform-example-sg"

  ingress {
    from_port = 80
    to_port = 80
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }
  
  egress {
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

resource "aws_instance" "web" {
  ami = "ami-0c5204531f799e0c6"
  instance_type = "t2.micro"
  vpc_security_group_ids = [aws_security_group.instance.id]

  user_data = <<-EOF
              #!/bin/bash
              sudo amazon-linux-extras install nginx1.12 -y
              sudo service nginx start
              EOF

  tags = {
    Name = "HelloWorld"
  }
}

output.tf

output "public_ip" {
  value = "${aws_instance.web.public_ip}"
}