Working with dependencies (#15)

*  adding clusater name to subnetwork name - in case of multiple clusters in the same workspace

* using "${var.name}" to avid dependencies

* example on multiple clusters

* TOC creation

* CR applied

* Overview

* removing dots

* adding dependencies on network

* removing default version - let gcloud decide on defaults

* tags are no longer defined on cluster level, multi cluster example

* IP convention

* adding network dependency

README.md

@@ -57,7 +57,6 @@ module "primary-cluster" {
   zones                  = "${var.google_zones}"
   project                = "${var.project}"
   environment            = "${terraform.workspace}"
-  tags                   = ["nat-${terraform.workspace}"]
   min_master_version     = "${var.master_version}"
   node_pools             = "${var.node_pools}"
 }
@@ -115,7 +114,7 @@ module "secondary-cluster" {
   project                              = "${var.project}"
   environment                          = "${terraform.workspace}"
   network                              = "${google_compute_network.default.name}"
-  nodes_subnet_ip_cidr_range           = "10.102.0.0/24"
+  nodes_subnet_ip_cidr_range           = "10.101.0.0/24"
   nodes_subnet_container_ip_cidr_range = "172.21.0.0/16"
   nodes_subnet_service_ip_cidr_range   = "10.201.0.0/16"
 }

main.tf

@@ -45,6 +45,7 @@ resource "google_compute_network" "default" {
 
 # Subnet for cluster nodes
 resource "google_compute_subnetwork" "nodes-subnet" {
+  depends_on    = ["google_compute_network.default"]
   name          = "${terraform.workspace}-${var.name}-nodes-subnet"
   ip_cidr_range = "${var.nodes_subnet_ip_cidr_range}"
   network       = "${var.network == "" ? terraform.workspace : var.network}"

variables.tf

@@ -30,12 +30,12 @@ variable "environment" {
 }
 
 variable "min_master_version" {
-  default     = "1.10.7-gke.6"
+  default     = ""
   description = "Kubernetes master version"
 }
 
 variable "nodes_subnet_ip_cidr_range" {
-  default     = "10.101.0.0/24"
+  default     = "10.100.0.0/24"
   description = "Cidr range for Kubernetes workers"
 }
 
@@ -58,7 +58,7 @@ variable "node_pools" {
       initial_node_count = 1
       min_node_count     = 1
       max_node_count     = 3
-      version            = "1.10.7-gke.6"
+      version            = ""
       image_type         = "COS"
       machine_type       = "n1-standard-1"
       preemptible        = true