First commit for Data Fusion module (#77)

* First commit for Data Fusion module

* Fix comments and improve ip_allocation logic.

* Add example

* generate variables and outputs table, fix example headings

* update year in boilerplates

* rename firewall variable, remove region from resource names

Co-authored-by: Ludovico Magnocavallo <ludomagno@google.com>

modules/datafusion/variables.tf

@@ -0,0 +1,99 @@
+/**
+ * Copyright 2020 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.
+ */
+
+###############################################################################
+#                                DtaFusion variables                          #
+###############################################################################
+
+variable "description" {
+  description = "DataFuzion instance description."
+  type        = string
+  default     = "Terraform managed."
+}
+
+variable "enable_stackdriver_logging" {
+  description = "Option to enable Stackdriver Logging."
+  type        = bool
+  default     = false
+}
+
+variable "enable_stackdriver_monitoring" {
+  description = "Option to enable Stackdriver Monitorig."
+  type        = bool
+  default     = false
+}
+
+variable "labels" {
+  description = "The resource labels for instance to use to annotate any related underlying resources, such as Compute Engine VMs."
+  type        = map(string)
+  default     = {}
+}
+
+variable "name" {
+  description = "Name of the DataFusion instance."
+  type        = string
+}
+
+variable "network" {
+  description = "Name of the network in the project with which the tenant project will be peered for executing pipelines in the form of projects/{project-id}/global/networks/{network}"
+  type        = string
+}
+
+variable "firewall_create" {
+  description = "Create Network firewall rules to enable SSH."
+  type        = bool
+  default     = true
+}
+
+variable "network_peering" {
+  description = "Create Network peering between project and DataFusion tenant project."
+  type        = bool
+  default     = true
+}
+
+variable "private_instance" {
+  description = "Create private instance."
+  type        = bool
+  default     = true
+}
+
+variable "project_id" {
+  description = "Project ID."
+  type        = string
+}
+
+variable "region" {
+  description = "DataFusion region."
+  type        = string
+}
+
+variable "ip_allocation_create" {
+  description = "Create Ip range for datafusion instance."
+  type        = bool
+  default     = true
+}
+
+variable "ip_allocation" {
+  description = "Ip allocated for datafusion instance when not using the auto created one and created outside of the module."
+  type        = string
+  default     = null
+}
+
+variable "type" {
+  description = "Datafusion Instance type. It can be BASIC or ENTERPRISE (default value)."
+  type        = string
+  default     = "ENTERPRISE"
+}