Reduce log verbosity (#2455)

Problem: NGF control plane logs are very verbose and give more information than is needed at the Info level.

Solution: Reduce many logs to the debug level, including logs from the controller-runtime library. Tests will log at the debug level.

internal/framework/events/loop.go

@@ -69,11 +69,11 @@ func (el *EventLoop) Start(ctx context.Context) error {
 			el.currentBatchID++
 			batchLogger := el.logger.WithName("eventHandler").WithValues("batchID", el.currentBatchID)
 
-			batchLogger.Info("Handling events from the batch", "total", len(batch))
+			batchLogger.V(1).Info("Handling events from the batch", "total", len(batch))
 
 			el.handler.HandleEventBatch(ctx, batchLogger, batch)
 
-			batchLogger.Info("Finished handling the batch")
+			batchLogger.V(1).Info("Finished handling the batch")
 			handlingDone <- struct{}{}
 		}(el.currentBatch)
 	}
@@ -120,7 +120,7 @@ func (el *EventLoop) Start(ctx context.Context) error {
 			// Add the event to the current batch.
 			el.nextBatch = append(el.nextBatch, e)
 
-			el.logger.Info(
+			el.logger.V(1).Info(
 				"added an event to the next batch",
 				"type", fmt.Sprintf("%T", e),
 				"total", len(el.nextBatch),

internal/mode/static/manager.go

@@ -282,6 +282,11 @@ func StartManager(cfg config.Config) error {
 	}
 
 	cfg.Logger.Info("Starting manager")
+	go func() {
+		<-ctx.Done()
+		cfg.Logger.Info("Shutting down")
+	}()
+
 	return mgr.Start(ctx)
 }
 
@@ -306,7 +311,7 @@ func createPolicyManager(
 func createManager(cfg config.Config, nginxChecker *nginxConfiguredOnStartChecker) (manager.Manager, error) {
 	options := manager.Options{
 		Scheme:  scheme,
-		Logger:  cfg.Logger,
+		Logger:  cfg.Logger.V(1),
 		Metrics: getMetricsOptions(cfg.MetricsConfig),
 		// Note: when the leadership is lost, the manager will return an error in the Start() method.
 		// However, it will not wait for any Runnable it starts to finish, meaning any in-progress operations

internal/mode/static/nginx/file/manager.go

@@ -103,7 +103,7 @@ func (m *ManagerImpl) ReplaceFiles(files []File) error {
 			return fmt.Errorf("failed to delete file %q: %w", path, err)
 		}
 
-		m.logger.Info("Deleted file", "path", path)
+		m.logger.V(1).Info("Deleted file", "path", path)
 	}
 
 	// In some cases, NGINX reads files in runtime, like a JWK. If you remove such file, NGINX will fail
@@ -118,7 +118,7 @@ func (m *ManagerImpl) ReplaceFiles(files []File) error {
 		}
 
 		m.lastWrittenPaths = append(m.lastWrittenPaths, file.Path)
-		m.logger.Info("Wrote file", "path", file.Path)
+		m.logger.V(1).Info("Wrote file", "path", file.Path)
 	}
 
 	return nil

tests/framework/ngf.go

@@ -67,6 +67,7 @@ func InstallNGF(cfg InstallationConfig, extraArgs ...string) ([]byte, error) {
 		"--namespace", cfg.Namespace,
 		"--wait",
 		"--set", "nginxGateway.productTelemetry.enable=false",
+		"--set", "nginxGateway.config.logging.level=debug",
 	}
 	if cfg.ChartVersion != "" {
 		args = append(args, "--version", cfg.ChartVersion)
@@ -95,6 +96,7 @@ func UpgradeNGF(cfg InstallationConfig, extraArgs ...string) ([]byte, error) {
 		"--namespace", cfg.Namespace,
 		"--wait",
 		"--set", "nginxGateway.productTelemetry.enable=false",
+		"--set", "nginxGateway.config.logging.level=debug",
 	}
 	if cfg.ChartVersion != "" {
 		args = append(args, "--version", cfg.ChartVersion)