Terraform configuraton defining a VPC, an Internet Gateway, an application load balancer (ALB), EC2 instances in an auto scaling group (ASG) across two availability zones, and a web security group. The launch configuration defined for the auto scaling group includes a script to install and start nginx on each EC2 instance.
Initalize Terraform:
terraform init
Build infrastructure:
terraform apply
The only output for this config is the ALB URL. This architecture does not use an SSL certificate. The traffic to/from the ALB will be over HTTP if you build/deploy this Terraform config - so remove the 'S' from the default 'https' URL that AWS uses for ALB URLs while testing.