cat <<EOT > alb.tf
resource "aws_lb" "myalb" {
  name               = "t101-alb"
  load_balancer_type = "application"
  subnets            = [aws_subnet.mysubnet1.id, aws_subnet.mysubnet2.id]
  security_groups = [aws_security_group.mysg.id]

  tags = {
    Name = "t101-alb"
  }
}

resource "aws_lb_listener" "myhttp" {
  load_balancer_arn = aws_lb.myalb.arn
  port              = 80
  protocol          = "HTTP"

  # By default, return a simple 404 page
  default_action {
    type = "fixed-response"

    fixed_response {
      content_type = "text/plain"
      message_body = "404: page not found - T101 Study"
      status_code  = 404
    }
  }
}

output "myalb_dns" {
  value       = aws_lb.myalb.dns_name
  description = "The DNS Address of the ALB"
}
EOT