Merge pull request #27 from backguynn/main

add log verbose

cmd/loxilb-agent/main.go

@@ -73,6 +73,7 @@ func newAgentCommand() *cobra.Command {
 		Long: "The loxilb agent runs on each node.",
 		Run: func(cmd *cobra.Command, args []string) {
 			log.InitLogFileLimits(cmd.Flags())
+			log.InitLogLevel(cmd.Flags())
 			if err := opts.complete(args); err != nil {
 				klog.Errorf("Failed to options complete. err: %v", err)
 				os.Exit(255)

pkg/log/logLevel.go

@@ -0,0 +1,42 @@
+// Copyright 2023 Netlox Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package log
+
+import (
+	"github.com/spf13/pflag"
+
+	"k8s.io/klog/v2"
+)
+
+const logVerbosityFlag = "v"
+
+// GetCurrentLogLevel returns the current log verbosity level.
+func GetCurrentLogLevel(fs *pflag.FlagSet) string {
+	return fs.Lookup(logVerbosityFlag).Value.String()
+}
+
+// InitLogLevel sets the log verbosity level when init time
+func InitLogLevel(fs *pflag.FlagSet) error {
+	level := GetCurrentLogLevel(fs)
+
+	var l klog.Level
+	err := l.Set(level)
+	if err != nil {
+		return err
+	}
+
+	klog.Infof("Set log level to %s", level)
+	return nil
+}