Multiple Web servers require a load balancer about deploy-terraform HOT 1 CLOSED

########### Create the web server load balancer ########################
resource "aws_elb" "web-lb" {
  name_prefix = "webLB-"
  subnets = ["${aws_subnet.testapp-dev-euw1a-public.id}","${aws_subnet.testapp-dev-euw1b-public.id}","${aws_subnet.testapp-dev-euw1c-public.id}"]
  security_groups = ["${aws_security_group.weblb-sg.id}"]

  listener {
    lb_port = 80
    lb_protocol = "http"
    instance_port = 8080
    instance_protocol = "http"
  }

  health_check {
    healthy_threshold = 2
    unhealthy_threshold = 2
    timeout = 3
    interval = 30
    target = "HTTP:8080/"
  }
}

resource "aws_security_group" "weblb-sg" {
  name_prefix = "weblb-sg"
  vpc_id = "${aws_vpc.testapp-dev-vpc.id}"

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

  egress {
    from_port = 8080
    to_port = 8080
    protocol = "tcp"
    security_groups = ["${aws_security_group.web-sg.id}"]
  }

  lifecycle {
    create_before_destroy = "true"
  }
}