pilotVersion = monitoring.NewGauge(
		"pilot_info",
		"Pilot version and build information.",
	)
)

func init() {
	pilotVersion.With(versionTag.Value(version.Info.String())).Record(1)
}

func addMonitor(mux *http.ServeMux) error {
	exporter, err := monitoring.RegisterPrometheusExporter(nil, nil)
	if err != nil {
		return fmt.Errorf("could not set up prometheus exporter: %v", err)
	}