cli: restart pprof and prometheus on HUP

cli/server/server.go

@@ -551,6 +551,12 @@ Main:
 				if !cfgnew.ApplicationConfiguration.RPC.StartWhenSynchronized || serv.IsInSync() {
 					rpcServer.Start()
 				}
+				pprof.ShutDown()
+				pprof = metrics.NewPprofService(cfgnew.ApplicationConfiguration.Pprof, log)
+				go pprof.Start()
+				prometheus.ShutDown()
+				prometheus = metrics.NewPrometheusService(cfgnew.ApplicationConfiguration.Prometheus, log)
+				go prometheus.Start()
 			}
 			cfg = cfgnew
 		case <-grace.Done():

pkg/services/metrics/metrics.go

@@ -31,6 +31,9 @@ func (ms *Service) Start() {
 
 // ShutDown stops the service.
 func (ms *Service) ShutDown() {
+	if !ms.config.Enabled {
+		return
+	}
 	ms.log.Info("shutting down service", zap.String("endpoint", ms.Addr))
 	err := ms.Shutdown(context.Background())
 	if err != nil {