gistfile1.txt

module "inf-consul" {
  source               = "../../terraform-modules/asg_elb"
  asg_name             = "inf_consul_asg"  
  lc_name              = "inf_consul_lc"
  ami_id               = "${var.ubuntu_amis.us-east-1-hvm}"
  instance_type        = "t2.medium"
  iam_instance_profile = "bootstrap"
  key_name             = "inf"
  security_group       = "${aws_security_group.use1-inf.id}"
  load_balancers       = "inf-consul-elb"
  elb_security_group   = "${aws_security_group.use1-inf-consul-elb.id}"
  elb_listen_port      = 8500
  vpc_id               = "${aws_vpc.us-east-1-vpc.id}"

  chef_environment = "inf"
  chef_role        = "consul-server"

  asg_number_of_instances         = 5
  asg_minimum_number_of_instances = 5

  azs        = "us-east-1a,us-east-1c,us-east-1d,us-east-1e"
  subnet_azs = "${aws_subnet.us-east-1a-private.id},${aws_subnet.us-east-1c-private.id},${aws_subnet.us-east-1d-private.id},${aws_subnet.us-east-1e-private.id}"

  access_key = "${var.access_key}"
  secret_key = "${var.secret_key}"
  region     = "${var.region}"
}


//
// Module: asg_elb
//

// This template creates the following resources
// - A launch configuration
// - A auto-scaling group
// - 

// Provider specific configs
provider "aws" {
    access_key = "${var.access_key}"
    secret_key = "${var.secret_key}"
    region     = "${var.region}"
}

/* -- THis totally does not work :( - 
      There's an open issue to create a new resource for ingress/egress rules
      Leaving this here as a place holder.
      
resource "aws_security_group" "use1-inf" {
  name = "use1-inf"
  description = "US-East-1 Consul ELB Security Group"

  ingress {
    from_port       = "${var.elb_listen_port}"
    to_port         = "${var.elb_listen_port}"
    protocol        = "tcp"
    security_groups = ["${var.elb_security_group}"]
  }
  vpc_id = "${var.vpc_id}"
} */

resource "aws_launch_configuration" "launch_config" {
    name                 = "${var.lc_name}"
    image_id             = "${var.ami_id}"
    instance_type        = "${var.instance_type}"
    iam_instance_profile = "${var.iam_instance_profile}"
    key_name             = "${var.key_name}"
    security_groups      = ["${var.security_group}"]
    user_data            = "${var.user_data}"
}

resource "aws_autoscaling_group" "main_asg" {
  //We want this to explicitly depend on the launch config above
  depends_on = ["aws_launch_configuration.launch_config"]

  //Assumes we want to use the first two ASz of the region
  availability_zones = ["${split(",", var.azs)}"]

  name = "${var.asg_name}"

  // Uses the ID from the launch config created above
  launch_configuration = "${aws_launch_configuration.launch_config.id}"

  max_size                  = "${var.asg_number_of_instances}"
  min_size                  = "${var.asg_minimum_number_of_instances}"
  desired_capacity          = "${var.asg_number_of_instances}"
  health_check_grace_period = "${var.health_check_grace_period}"
  health_check_type         = "${var.health_check_type}"
  load_balancers            = ["${split(",", var.load_balancers)}"]

  // Takes a list of VPC subnet IDS, we assume two, for the two AZs
  vpc_zone_identifier = ["${split(",", var.subnet_azs)}"]
  tag {
    key                 = "Name"
    value               = "${var.chef_environment}_${var.chef_role}"
    propagate_at_launch = true
  }
  tag {
    key                 = "Role"
    value               = "${var.chef_role}"
    propagate_at_launch = true
  }
  tag {
    key                 = "Environment"
    value               = "${var.chef_environment}"
    propagate_at_launch = true
  }
}