resource "aws_elb" "app_elb" {
  name = "${var.vpc_name}_app_elb"

  access_logs {
    bucket        = "${aws_s3_bucket.elb_logs.name}"
    bucket_prefix = "app_logs"
    interval      = 60
  }

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

  health_check {
    healthy_threshold   = 2
    unhealthy_threshold = 2
    timeout             = 3
    target              = "HTTP:80"
    interval            = 5
  }

  cross_zone_load_balancing  = true
  idle_timeout               = 400
  connection_draining        = true
  connetion_draining_timeout = 400
  security_groups            = ["${aws_security_group.app_sg.id}"]

  subnets = [
    "${aws_subnet.public_1.id}",
    "${aws_subnet.public_2.id}",
    "${aws_subnet.public_3.id}",
  ]
}