load-balancer.tf

# Create a new application load balancer.
resource "aws_alb" "terraform_alb" {
  name = "terraform-alb"

  subnets = [
    "${aws_subnet.terraform_cluster_subnet_1.id}",
    "${aws_subnet.terraform_cluster_subnet_2.id}",
  ]

  security_groups = ["${aws_security_group.terraform_sg_alb.id}"]

  tags {
    Name = "Generated by Terraform - Terraform alb"
  }
}

# Create a new target group for the application load balancer.
resource "aws_alb_target_group" "terraform_alb_group" {
  name     = "terraform-test-alb-target"
  port     = 80
  protocol = "HTTP"
  vpc_id   = "${aws_vpc.terraform_vpc.id}"

  stickiness {
    type = "lb_cookie"
  }

  # Alter the destination of the health check to be the specific file page.
  # health_check {
  #   path = "/healthcheck.html"
  #   port = 80
  # }
}

# Create a new application load balancer listener for HTTP.
resource "aws_alb_listener" "terraform_alb_listener_http" {
  load_balancer_arn = "${aws_alb.terraform_alb.arn}"
  port              = "80"
  protocol          = "HTTP"

  default_action {
    target_group_arn = "${aws_alb_target_group.terraform_alb_group.arn}"
    type             = "forward"
  }
}