output "Intern"{
    value = {
        ip_front = google_compute_instance.vm-front.network_interface[0].network_ip,
        ip_back = google_compute_instance.vm-back.network_interface[0].network_ip,
        ip_db = google_compute_instance.vm-database.network_interface[0].network_ip
    }
}

output "frontend_public_ip" {
    value = google_compute_instance.vm-front.network_interface[0].access_config[0].nat_ip 
}
output "name"{
    value = {
        name_frontend = google_compute_instance.vm-front.name
        name_backend  = google_compute_instance.vm-back.name
        name_database = google_compute_instance.vm-database.name
    }
}