output "instance_name" {
  value       = {
        frontend = google_compute_instance.vm-front.name
        backend = google_compute_instance.vm-back.name
        database = google_compute_instance.vm-database.name
  }
}

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
}