output "ip-internes" {
  value = {
    frontend = google_compute_instance.frontend.network_interface[0].network_ip
    backend  = google_compute_instance.backend.network_interface[0].network_ip
    database = google_compute_instance.database.network_interface[0].network_ip
  }
}

output "id-public-frontend" {
  value = google_compute_instance.frontend.network_interface[0].access_config[0].nat_ip
}

output "instances-names" {
  value = {
    frontend = google_compute_instance.frontend.name
    backend  = google_compute_instance.backend.name
    database = google_compute_instance.database.name
  }
}