Added conditional project designation feature for relevant modules.

modules/cloud-vpn-tunnel/main.tf

@@ -1,3 +1,5 @@
+data "google_client_config" "default" {}
+
 data "google_compute_vpn_gateway" "gw" {
   name = var.gw_name
 }
@@ -6,12 +8,13 @@ locals {
   vpc_name = regex("networks/([^/]+)$", data.google_compute_vpn_gateway.gw.network)[0]
 }
 
-data google_compute_network network {
+data "google_compute_network" "network" {
   name = local.vpc_name
 }
 
 resource "google_compute_vpn_tunnel" "tunnel" {
   name               = var.name
+  project            = var.project_id != null ? var.project_id : data.google_client_config.default.project
   target_vpn_gateway = data.google_compute_vpn_gateway.gw.id
 
   shared_secret = var.shared_secret
@@ -25,6 +28,7 @@ resource "google_compute_vpn_tunnel" "tunnel" {
 resource "google_compute_route" "route_to_remote_network" {
   count               = length(var.remote_selectors)
   name                = "${data.google_compute_network.network.name}-to-${replace(var.remote_selectors[count.index], "/[./]/", "-")}"
+  project             = var.project_id != null ? var.project_id : data.google_client_config.default.project
   network             = data.google_compute_network.network.name
   dest_range          = var.remote_selectors[count.index]
   next_hop_vpn_tunnel = google_compute_vpn_tunnel.tunnel.id