terraform/ha_instance/asg.tf

/***************************************************
* AUTO SCALING GROUP FOR NUXEO INSTANCE
****************************************************/

resource "aws_launch_configuration" "asg_launch_nuxeo" {
    name                        = "asg_launch_nuxeo"
    image_id                    = "ami-2b10bc4b"
    instance_type               = "t2.micro"
    key_name                    = "packer_5832e178-3196-2110-e869-232a71aa6853"
    security_groups             = ["${var.alb_secgroups}"]
    enable_monitoring           = false
    ebs_optimized               = false

    user_data       		= "${file("userdata.sh")}"

    root_block_device {
        volume_type           = "gp2"
        volume_size           = 20
        delete_on_termination = true
    }

}

resource "aws_autoscaling_group" "asg_nuxeo" {
    name                      = "asg_nuxeo"

    health_check_grace_period = 60
    health_check_type         = "EC2"
    launch_configuration      = "${aws_launch_configuration.asg_launch_nuxeo.name}"

    max_size                  = "${var.asg_max}"
    min_size                  = "${var.asg_min}"
    desired_capacity          = "${var.asg_desired}"

    vpc_zone_identifier       = ["${var.app_subnets}"]
    target_group_arns = ["${aws_alb_target_group.nuxeo.arn}"]

    tag {
        key   = "role"
        value = "nuxeo"
        propagate_at_launch = true
    }

}