Rename cluster_name to name in internal module

* Ensure consistency between AWS and GCP platforms

aws/container-linux/kubernetes/workers.tf

@@ -1,6 +1,6 @@
 module "workers" {
   source = "workers"
-  cluster_name = "${var.cluster_name}"
+  name = "${var.cluster_name}"
   
   # AWS
   vpc_id      = "${aws_vpc.network.id}"

aws/container-linux/kubernetes/workers/ingress.tf

@@ -1,6 +1,6 @@
 # Network Load Balancer for Ingress
 resource "aws_lb" "ingress" {
-  name               = "${var.cluster_name}-ingress"
+  name               = "${var.name}-ingress"
   load_balancer_type = "network"
   internal           = false
 
@@ -34,7 +34,7 @@ resource "aws_lb_listener" "ingress-https" {
 # Network Load Balancer target groups of instances
 
 resource "aws_lb_target_group" "workers-http" {
-  name        = "${var.cluster_name}-workers-http"
+  name        = "${var.name}-workers-http"
   vpc_id      = "${var.vpc_id}"
   target_type = "instance"
 
@@ -57,7 +57,7 @@ resource "aws_lb_target_group" "workers-http" {
 }
 
 resource "aws_lb_target_group" "workers-https" {
-  name        = "${var.cluster_name}-workers-https"
+  name        = "${var.name}-workers-https"
   vpc_id      = "${var.vpc_id}"
   target_type = "instance"
 

aws/container-linux/kubernetes/workers/variables.tf

@@ -1,6 +1,6 @@
-variable "cluster_name" {
+variable "name" {
   type        = "string"
-  description = "Unique name"
+  description = "Unique name instance group"
 }
 
 variable "vpc_id" {

aws/container-linux/kubernetes/workers/workers.tf

@@ -1,6 +1,6 @@
 # Workers AutoScaling Group
 resource "aws_autoscaling_group" "workers" {
-  name = "${var.cluster_name}-worker ${aws_launch_configuration.worker.name}"
+  name = "${var.name}-worker ${aws_launch_configuration.worker.name}"
 
   # count
   desired_capacity          = "${var.count}"
@@ -29,7 +29,7 @@ resource "aws_autoscaling_group" "workers" {
 
   tags = [{
     key                 = "Name"
-    value               = "${var.cluster_name}-worker"
+    value               = "${var.name}-worker"
     propagate_at_launch = true
   }]
 }

docs/advanced/worker-pools.md

@@ -25,7 +25,7 @@ module "tempest-worker-pool" {
   security_groups = "${module.aws-tempest.worker_security_groups}"
   
   # configuration
-  cluster_name       = "tempest-worker-pool"
+  name               = "tempest-worker-pool"
   kubeconfig         = "${module.aws-tempest.kubeconfig}"
   ssh_authorized_key = "${var.ssh_authorized_key}"
 
@@ -54,7 +54,7 @@ The AWS internal `workers` module supports a number of [variables](https://githu
 | vpc_id | Must be set to `vpc_id` output by cluster | "${module.cluster.vpc_id}" |
 | subnet_ids | Must be set to `subnet_ids` output by cluster | "${module.cluster.subnet_ids}" |
 | security_groups | Must be set to `worker_security_groups` output by cluster | "${module.cluster.worker_security_groups}" |
-| cluster_name | Unique name | "tempest-worker-pool" |
+| name | Unique name (distinct from cluster name) | "tempest-m5s" |
 | kubeconfig | Must be set to `kubeconfig` output by cluster | "${module.cluster.kubeconfig}" |
 | ssh_authorized_key | SSH public key for ~/.ssh_authorized_keys | "ssh-rsa AAAAB3NZ..." |
 

google-cloud/container-linux/kubernetes/workers/variables.tf

@@ -1,6 +1,6 @@
 variable "name" {
   type        = "string"
-  description = "Unique name"
+  description = "Unique name for instance group"
 }
 
 variable "cluster_name" {