Group vpc and subnet under vpc_config

modules/ncc-spoke-ra/main.tf

@@ -51,7 +51,7 @@ resource "google_network_connectivity_spoke" "spoke-ra" {
 resource "google_compute_router" "cr" {
   project = var.project_id
   name    = "${var.name}-cr"
-  network = var.vpc
+  network = var.vpc_config.network_name
   region  = var.region
   bgp {
     advertise_mode = (
@@ -78,7 +78,7 @@ resource "google_compute_router_interface" "intf1" {
   name               = "intf1"
   router             = google_compute_router.cr.name
   region             = var.region
-  subnetwork         = var.subnetwork
+  subnetwork         = var.vpc_config.subnet_self_link
   private_ip_address = var.ip_intf1
 }
 
@@ -87,7 +87,7 @@ resource "google_compute_router_interface" "intf2" {
   name                = "intf2"
   router              = google_compute_router.cr.name
   region              = var.region
-  subnetwork          = var.subnetwork
+  subnetwork          = var.vpc_config.subnet_self_link
   private_ip_address  = var.ip_intf2
   redundant_interface = google_compute_router_interface.intf1.name
 }

modules/ncc-spoke-ra/variables.tf

@@ -89,12 +89,10 @@ variable "region" {
   type        = string
 }
 
-variable "subnetwork" {
-  description = "The URI of the subnetwork that CR interfaces belong to."
-  type        = string
-}
-
-variable "vpc" {
-  description = "A reference to the network to which the CR belongs."
-  type        = string
+variable "vpc_config" {
+  description = "Network and subnetwork for the CR interfaces."
+  type = object({
+    network_name     = string
+    subnet_self_link = string
+  })
 }