feat: Add a service activation module (#146)

* Start a service activation module

* Complete proejct services submodule

* Pass through variables

modules/services/main.tf

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+/**
+ * Copyright 2018 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.
+ */
+
+module "services" {
+  source  = "terraform-google-modules/project-factory/google//modules/project_services"
+  version = "~> 6.0.0"
+
+  project_id                  = var.project_id
+  enable_apis                 = var.enable_apis
+  disable_services_on_destroy = var.disable_services_on_destroy
+  disable_dependent_services  = var.disable_dependent_services
+
+  activate_apis = [
+    "compute.googleapis.com",
+    "iam.googleapis.com",
+    "container.googleapis.com"
+  ]
+}

modules/services/outputs.tf

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+/**
+ * Copyright 2018 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.
+ */
+
+output "project_id" {
+  description = "The GCP project you enabled APIs on"
+  value       = module.services.project_id
+}

modules/services/variables.tf

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+/**
+ * Copyright 2018 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.
+ */
+
+variable "project_id" {
+  description = "The GCP project you want to enable APIs on"
+  type        = string
+}
+
+variable "enable_apis" {
+  description = "Whether to actually enable the APIs. If false, this module is a no-op."
+  default     = true
+  type        = bool
+}
+
+variable "disable_services_on_destroy" {
+  description = "Whether project services will be disabled when the resources are destroyed. https://www.terraform.io/docs/providers/google/r/google_project_service.html#disable_on_destroy"
+  default     = false
+  type        = bool
+}
+
+variable "disable_dependent_services" {
+  description = "Whether services that are enabled and which depend on this service should also be disabled when this service is destroyed. https://www.terraform.io/docs/providers/google/r/google_project_service.html#disable_dependent_services"
+  default     = false
+  type        = bool
+}