Support creating multiple worker auto scaling groups, similar to KOPS

data.tf

@@ -1,15 +1,5 @@
 data "aws_region" "current" {}
 
-data "aws_ami" "eks_worker" {
-  filter {
-    name   = "name"
-    values = ["eks-worker-*"]
-  }
-
-  most_recent = true
-  owners      = ["602401143452"] # Amazon
-}
-
 data "aws_iam_policy_document" "workers_assume_role_policy" {
   statement {
     sid = "EKSWorkerAssumeRole"
@@ -40,19 +30,6 @@ data "aws_iam_policy_document" "cluster_assume_role_policy" {
   }
 }
 
-data template_file userdata {
-  template = "${file("${path.module}/templates/userdata.sh.tpl")}"
-
-  vars {
-    region              = "${data.aws_region.current.name}"
-    max_pod_count       = "${lookup(local.max_pod_per_node, var.workers_instance_type)}"
-    cluster_name        = "${var.cluster_name}"
-    endpoint            = "${aws_eks_cluster.this.endpoint}"
-    cluster_auth_base64 = "${aws_eks_cluster.this.certificate_authority.0.data}"
-    additional_userdata = "${var.additional_userdata}"
-  }
-}
-
 data template_file kubeconfig {
   template = "${file("${path.module}/templates/kubeconfig.tpl")}"
 
@@ -71,8 +48,3 @@ data template_file config_map_aws_auth {
     role_arn = "${aws_iam_role.workers.arn}"
   }
 }
-
-module "ebs_optimized" {
-  source        = "./modules/tf_util_ebs_optimized"
-  instance_type = "${var.workers_instance_type}"
-}