Add submodule and tests for private clusters

Author: Jberlinsky

.kitchen.yml

@@ -76,6 +76,19 @@ suites:
           backend: local
     provisioner:
       name: terraform
+  - name: "simple_regional_private"
+    driver:
+      name: "terraform"
+      command_timeout: 1800
+      root_module_directory: test/fixtures/simple_regional_private
+    verifier:
+      name: terraform
+      color: false
+      systems:
+        - name: simple_regional_private
+          backend: local
+    provisioner:
+      name: terraform
   - name: "simple_zonal"
     driver:
       name: "terraform"
@@ -89,6 +102,19 @@ suites:
           backend: local
     provisioner:
       name: terraform
+  - name: "simple_zonal_private"
+    driver:
+      name: "terraform"
+      command_timeout: 1800
+      root_module_directory: test/fixtures/simple_zonal_private
+    verifier:
+      name: terraform
+      color: false
+      systems:
+        - name: simple_zonal_private
+          backend: local
+    provisioner:
+      name: terraform
   - name: "stub_domains"
     driver:
       name: "terraform"

README.md

@@ -1,7 +1,6 @@
 # Terraform Kubernetes Engine Module
 
-This module handles opinionated Google Cloud Platform Kubernetes Engine cluster creation and configuration with Node Pools, IP MASQ, Network Policy, etc.
-
+This module handles opinionated Google Cloud Platform Kubernetes Engine cluster creation and configuration with Node Pools, IP MASQ, Network Policy, etc. 
 The resources/services/activations/deletions that this module will create/trigger are:
 - Create a GKE cluster with the provided addons
 - Create GKE Node Pool(s) with provided configuration and attach to cluster
@@ -173,7 +172,6 @@ The [project factory](https://github.com/terraform-google-modules/terraform-goog
 ### Terraform plugins
 - [Terraform](https://www.terraform.io/downloads.html) 0.10.x
 - [terraform-provider-google](https://github.com/terraform-providers/terraform-provider-google) plugin v1.8.0
-
 ### Configure a Service Account
 In order to execute this module you must have a Service Account with the
 following project roles:
@@ -209,9 +207,9 @@ The project has the following folders and files:
 
 ## Templating
 
-To more cleanly handle cases where desired functionality would require complex duplication of Terraform resources (i.e. [PR 51](https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/51)), this repository is largely generated from the [`autogen`](./autogen) directory.
+To more cleanly handle cases where desired functionality would require complex duplication of Terraform resources (i.e. [PR 51](https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/51)), this repository is largely generated from the [`autogen`](/autogen) directory.
 
-The root module is generated by running `make generate`. Changes to this repository should be made in the [`autogen`](./autogen) directory where appropriate.
+The root module is generated by running `make generate`. Changes to this repository should be made in the [`autogen`](/autogen) directory where appropriate.
 
 ## Testing
 
@@ -320,4 +318,4 @@ are as follows:
 is a compiled language so there is no standard linter.
 * Terraform - terraform has a built-in linter in the 'terraform validate'
 command.
-* Dockerfiles - hadolint. Can be found in homebrew
+* Dockerfiles - hadolint. Can be found in homebrew

auth.tf

@@ -19,7 +19,9 @@
 /******************************************
   Retrieve authentication token
  *****************************************/
-data "google_client_config" "default" {}
+data "google_client_config" "default" {
+  provider = "google"
+}
 
 /******************************************
   Configure provider