correction

tp-cloud/terraform/environments/dev/outputs.tf

@@ -23,7 +23,15 @@ output "vpc_id" {
   value = module.network.vpc_id
 }
 
-output "subnets_ids" {
-  value = module.network.subnets_ids
+output "frontend_subnet_id" {
+  value = google_compute_subnetwork.frontend.id
+}
+
+output "backend_subnet_id" {
+  value = google_compute_subnetwork.backend.id
+}
+
+output "database_subnet_id" {
+  value = google_compute_subnetwork.database.id
 }