TP_Terraform/terraform/modules/network/outputs.tf

output "vpc"{
    value = google_compute_network.vpc.id
}

output "subnet" {
  value = {
    frontend = google_compute_subnetwork.subnet_front.id,
    backend = google_compute_subnetwork.subnet_back.id,
    database = google_compute_subnetwork.subnet_db.id
  }
}