Added option to enable or disable Cloud NAT.

main.tf

@@ -23,6 +23,8 @@ module "hub_network" {
     cidr   = var.hub.cidr
     region = var.hub.region
   }]
+
+  nat = true
 }
 
 module "spoke_network" {
@@ -36,6 +38,8 @@ module "spoke_network" {
       region = var.spoke.region
     }
   ]
+
+  nat = true
 }
 
 module "hub_to_spoke_peering" {
@@ -61,7 +65,7 @@ module "hub_to_spoke_peering" {
   ]
 }
 
-module "vm-hub" {
+module "vm_hub" {
   source = "./modules/linux-vm"
 
   name         = "vm-${var.hub.name}"
@@ -72,7 +76,7 @@ module "vm-hub" {
   depends_on = [module.hub_network]
 }
 
-module "vm-spoke" {
+module "vm_spoke" {
   source = "./modules/linux-vm"
 
   name         = "vm-${var.spoke.name}"