Clone this repository in your directory.
$ git clone https://github.com/terraform-aws-alb-tg
$ cd terraform-aws-alb-tg
$ terraform init
$ export AWS_ACCESS_KEY_ID=YOUR_AWS_ACCESS_KEY_ID
$ export AWS_SECRET_ACCESS_KEY=YOUR_AWS_SECRET_ACCESS_KEY
$ terraform plan
$ terraform apply -auto-approve
You need installed terraform.