terraform/ha_instance/alb.tf

/***************************************************
#   APPLICATION LOAD BALANCER
***************************************************/
resource "aws_alb_target_group" "nuxeo" {
  name     = "${var.stack_name}-nuxeo-alb-tg" ## required input
  port     = 8080
  protocol = "HTTP"
  vpc_id   = "${var.vpc_id}" ## required input
}

resource "aws_alb" "nuxeo" {
  name            = "${var.stack_name}-nuxeo-alb"
  subnets         = ["${var.app_subnets}"]
  security_groups = ["${var.alb_secgroups}"] ## required input
}

resource "aws_alb_listener" "nuxeo_http" {
  load_balancer_arn = "${aws_alb.nuxeo.id}"
  port              = "80"
  protocol          = "HTTP"

  default_action {
    target_group_arn = "${aws_alb_target_group.nuxeo.id}"
    type             = "forward"
  }
}

resource "aws_alb_listener" "nuxeo_https" {
   load_balancer_arn = "${aws_alb.nuxeo.arn}"
   port = "443"
   protocol = "HTTPS"
   ssl_policy = "ELBSecurityPolicy-2015-05"
   certificate_arn = "arn:aws:iam::820410587685:server-certificate/nuxeocloud2016"

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