lumberjack转储klog日志

go.mod

module lumberjack
 
go 1.19
 
require (
	gopkg.in/natefinch/lumberjack.v2 v2.2.1
	k8s.io/klog/v2 v2.100.1
)
 
require github.com/go-logr/logr v1.2.0 // indirect

main.go

package main
 
import (
	"flag"
 
	"gopkg.in/natefinch/lumberjack.v2"
	"k8s.io/klog/v2"
)
 
func main() {
	// 初始化
	klog.InitFlags(nil)
	flag.Set("logtostderr", "false")
	flag.Set("log_file", "test.log")
	flag.Parse()
	// klog不转储日志，只会默认切割日志，保证在1.8G以内
	// klog日志打印到lumberjack，lumberjack写入文件并转储
	l := &lumberjack.Logger{
		Filename:   "test.log",
		MaxSize:    1, // mb
		MaxBackups: 3,
		MaxAge:     28,   //days
		Compress:   true, // disabled by default
	}
	klog.SetOutput(l)
	defer klog.Flush()
	for i := 0; i < 100000; i++ {
		klog.Infof("hello")
	}
}

./main