feat: Add Terraform 0.13 constraint and module attribution (#792)

BREAKING CHANGE: Minimum Terraform core version increased to 0.13.

Author: bharathkkb

Makefile

@@ -18,7 +18,7 @@
 # Make will use bash instead of sh
 SHELL := /usr/bin/env bash
 
-DOCKER_TAG_VERSION_DEVELOPER_TOOLS := 0.12.2
+DOCKER_TAG_VERSION_DEVELOPER_TOOLS := 0.13
 DOCKER_IMAGE_DEVELOPER_TOOLS := cft/developer-tools
 REGISTRY_URL := gcr.io/cloud-foundation-cicd
 

autogen/main/cluster.tf.tmpl

@@ -567,10 +567,10 @@ resource "google_container_node_pool" "pools" {
     }
 
     dynamic "linux_node_config" {
-      for_each = merge(
+      for_each = length(merge(
         local.node_pools_linux_node_configs_sysctls["all"],
         local.node_pools_linux_node_configs_sysctls[each.value["name"]]
-      ) != {} ? [1] : []
+      )) != 0 ? [1] : []
 
       content {
         sysctls = merge(

autogen/main/versions.tf.tmpl

@@ -14,16 +14,39 @@
  * limitations under the License.
  */
 
+{% set module_path_str =  module_path|string %}
+{% set module_registry_name = module_path_str.split('/')[-1] %}
+
 terraform {
-  required_version = ">=0.12.6"
+  required_version = ">=0.13"
 
-  required_providers {
 {% if beta_cluster %}
-    google-beta = ">= 3.49.0, <4.0.0"
-    kubernetes  = "~> 1.10, != 1.11.0"
+  required_providers {
+    google-beta = {
+      source  = "hashicorp/google-beta"
+      version = ">= 3.49.0, <4.0.0"
+    }
+    kubernetes = {
+      source  = "hashicorp/kubernetes"
+      version = "~> 1.10, != 1.11.0"
+    }
+  }
+  provider_meta "google-beta" {
+    module_name = "blueprints/terraform/terraform-google-kubernetes-engine{% if module_registry_name %}:{{ module_registry_name }}{% endif %}/v13.0.0"
+  }
 {% else %}
-    google     = ">= 3.39.0, <4.0.0"
-    kubernetes = "~> 1.10, != 1.11.0"
-{% endif %}
+  required_providers {
+    google = {
+      source  = "hashicorp/google"
+      version = ">= 3.39.0, <4.0.0"
+    }
+    kubernetes = {
+      source  = "hashicorp/kubernetes"
+      version = "~> 1.10, != 1.11.0"
+    }
   }
+  provider_meta "google" {
+    module_name = "blueprints/terraform/terraform-google-kubernetes-engine{% if module_registry_name %}:{{ module_registry_name }}{% endif %}/v13.0.0"
+  }
+{% endif %}
 }

autogen/safer-cluster/versions.tf.tmpl

@@ -16,6 +16,13 @@
 
 {{ autogeneration_note }}
 
+{% set module_path_str =  module_path|string %}
+{% set module_registry_name = module_path_str.split('/')[-1] %}
+
 terraform {
-  required_version = ">=0.12"
+  required_version = ">=0.13"
+
+  provider_meta "google-beta" {
+    module_name = "blueprints/terraform/terraform-google-kubernetes-engine{% if module_registry_name %}:{{ module_registry_name }}{% endif %}/v13.0.0"
+  }
 }

build/int.cloudbuild.yaml

@@ -429,6 +429,6 @@ tags:
 - 'integration'
 substitutions:
   _DOCKER_IMAGE_DEVELOPER_TOOLS: 'cft/developer-tools'
-  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '0.12.2'
+  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '0.13'
 options:
   machineType: 'N1_HIGHCPU_8'

build/lint.cloudbuild.yaml

@@ -22,7 +22,7 @@ tags:
 - 'lint'
 substitutions:
   _DOCKER_IMAGE_DEVELOPER_TOOLS: 'cft/developer-tools'
-  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '0.12.2'
+  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '0.13'
 options:
   machineType: 'N1_HIGHCPU_8'
   env:

examples/safer_cluster/main.tf

@@ -27,6 +27,7 @@ locals {
   master_auth_subnetwork = "safer-cluster-master-subnet"
   pods_range_name        = "ip-range-pods-${random_string.suffix.result}"
   svc_range_name         = "ip-range-svc-${random_string.suffix.result}"
+  subnet_names           = [for subnet_self_link in module.gcp-network.subnets_self_links : split("/", subnet_self_link)[length(split("/", subnet_self_link)) - 1]]
 }
 
 provider "google" {
@@ -53,7 +54,7 @@ module "gke" {
   regional                       = true
   region                         = var.region
   network                        = module.gcp-network.network_name
-  subnetwork                     = module.gcp-network.subnets_names[index(module.gcp-network.subnets_names, local.subnet_name)]
+  subnetwork                     = local.subnet_names[index(module.gcp-network.subnets_names, local.subnet_name)]
   ip_range_pods                  = local.pods_range_name
   ip_range_services              = local.svc_range_name
   compute_engine_service_account = var.compute_engine_service_account

examples/safer_cluster_iap_bastion/apis.tf

@@ -16,7 +16,7 @@
 
 module "enabled_google_apis" {
   source  = "terraform-google-modules/project-factory/google//modules/project_services"
-  version = "~> 8.0"
+  version = "~> 10.0"
 
   project_id                  = var.project_id
   disable_services_on_destroy = false

examples/safer_cluster_iap_bastion/provider.tf

@@ -15,7 +15,7 @@
  */
 
 provider "google" {
-  version = "~> 3.42.0"
+  version = "~> 3.50.0"
 }
 
 provider "google-beta" {

modules/asm/versions.tf

@@ -0,0 +1,24 @@
+
+/**
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+terraform {
+  required_version = ">= 0.13.0"
+
+  provider_meta "google" {
+    module_name = "blueprints/terraform/terraform-google-kubernetes-engine:asm/v13.0.0"
+  }
+}