[#195] Add tags support

Signed-off-by: Aleksey Kravchenko <al.kravchenko@yadro.com>

metrics/service.go

@@ -25,24 +25,24 @@ type Config struct {
 // Start runs http service with the exposed endpoint on the configured port.
 func (ms *Service) Start() {
 	if ms.enabled {
-		ms.log.Info(logs.ServiceIsRunning, zap.String("endpoint", ms.Addr))
+		ms.log.Info(logs.ServiceIsRunning, zap.String("endpoint", ms.Addr), logs.TagField(logs.TagApp))
 		err := ms.ListenAndServe()
 		if err != nil && err != http.ErrServerClosed {
-			ms.log.Warn(logs.ServiceCouldntStartOnConfiguredPort)
+			ms.log.Warn(logs.ServiceCouldntStartOnConfiguredPort, logs.TagField(logs.TagApp))
 		}
 	} else {
-		ms.log.Info(logs.ServiceHasntStartedSinceItsDisabled)
+		ms.log.Info(logs.ServiceHasntStartedSinceItsDisabled, logs.TagField(logs.TagApp))
 	}
 }
 
 // ShutDown stops the service.
 func (ms *Service) ShutDown(ctx context.Context) {
-	ms.log.Info(logs.ShuttingDownService, zap.String("endpoint", ms.Addr))
+	ms.log.Info(logs.ShuttingDownService, zap.String("endpoint", ms.Addr), logs.TagField(logs.TagApp))
 	err := ms.Shutdown(ctx)
 	if err != nil {
-		ms.log.Error(logs.CantGracefullyShutDownService, zap.Error(err))
+		ms.log.Error(logs.CantGracefullyShutDownService, zap.Error(err), logs.TagField(logs.TagApp))
 		if err = ms.Close(); err != nil {
-			ms.log.Panic(logs.CantShutDownService, zap.Error(err))
+			ms.log.Panic(logs.CantShutDownService, zap.Error(err), logs.TagField(logs.TagApp))
 		}
 	}
 }