Allow creation of regional templates in compute-vm module (#3114)

* allow creation of regional templates in compute-vm module

* tfdoc

* fix blueprint

blueprints/apigee/network-patterns/nb-glb-psc-neg-sb-psc-ilbl7-hybrid-neg/onprem.tf

@@ -87,7 +87,7 @@ module "instance_template" {
       image = "projects/cos-cloud/global/images/family/cos-stable"
     }
   }
-  create_template = true
+  create_template = {}
   metadata = {
     user-data = module.cos-nginx.cloud_config
   }

blueprints/gcve/monitoring/main.tf

@@ -66,7 +66,7 @@ module "gcve-mon-template" {
   name            = "gcve-mon-template"
   zone            = var.vm_mon_config.vm_mon_zone
   instance_type   = var.vm_mon_config.vm_mon_type
-  create_template = true
+  create_template = {}
   can_ip_forward  = false
   network_interfaces = [
     {

blueprints/networking/glb-and-armor/main.tf

@@ -95,7 +95,7 @@ module "instance_template_ew1" {
   metadata = {
     startup-script-url = "gs://cloud-training/gcpnet/httplb/startup.sh"
   }
-  create_template = true
+  create_template = {}
   tags = [
     "http-server"
   ]
@@ -113,7 +113,7 @@ module "instance_template_ue1" {
   metadata = {
     startup-script-url = "gs://cloud-training/gcpnet/httplb/startup.sh"
   }
-  create_template = true
+  create_template = {}
   tags = [
     "http-server"
   ]

blueprints/networking/glb-hybrid-neg-internal/nva.tf

@@ -21,7 +21,7 @@ module "nva_instance_templates" {
   source          = "../../../modules/compute-vm"
   project_id      = module.project_landing.project_id
   can_ip_forward  = true
-  create_template = true
+  create_template = {}
   name            = "nva-${each.value}"
   service_account = {
     auto_create = true

blueprints/networking/glb-hybrid-neg-internal/spoke.tf

@@ -110,7 +110,7 @@ module "test_vms" {
     "https-server",
     "ssh"
   ]
-  create_template = var.ilb_create
+  create_template = var.ilb_create ? {} : null
 }
 
 module "test_vm_migs" {

blueprints/third-party-solutions/gitlab-runner/runner.tf

@@ -107,7 +107,7 @@ module "gitlab-runner-template" {
   service_account = {
     email = module.runner-mig-sa.0.email
   }
-  create_template = true
+  create_template = {}
 }
 
 module "gitlab-runner-mig" {