output "ip_instance" {
  value = {
    frontend = google_compute_instance.vm_front.network_interface.0.network_ip
    backend = google_compute_instance.vm_back.network_interface.0.network_ip
    database = google_compute_instance.vm_db.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_instance" {
  value = {
    frontend = google_compute_instance.vm_front.name
    backend = google_compute_instance.vm_back.name
    database = google_compute_instance.vm_db.name
  }
}