autoscaling_group.tf

resource "aws_autoscaling_group" "elasticsearch" {
  name                 = "${var.service_name}-${var.environment}-elasticsearch"
  max_size             = "${var.elasticsearch_max_instances}"
  min_size             = "${var.elasticsearch_min_instances}"
  desired_capacity     = "${var.elasticsearch_desired_instances}"
  default_cooldown     = 30
  force_delete         = true

  launch_template      = {
    id      = "${aws_launch_template.elasticsearch.id}"
    version = "$$Latest"
  }

  vpc_zone_identifier  = ["${data.aws_subnet_ids.all_subnets.ids}"]
  load_balancers       = ["${aws_elb.elasticsearch_elb.*.id}"]

  tag {
    key                 = "Name"
    value               = "${var.service_name}-${var.environment}-elasticsearch"
    propagate_at_launch = true
  }

  tag {
    key                 = "team"
    value               = "${var.service_name}"
    propagate_at_launch = true
  }

  tag {
    key   = "env"
    value = "${var.environment}"
    propagate_at_launch = true
  }

  lifecycle {
    create_before_destroy = true
  }
}