chore(sync): fix ipversion_prefer; add logfile; support binding to wg

.gitignore

@@ -16,3 +16,6 @@ daed
 # vendor
 vendor/
 go-mod/
+
+# log
+*.log

cmd/run.go

@@ -25,12 +25,16 @@ import (
 	"github.com/rs/cors"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
+	"gopkg.in/natefinch/lumberjack.v2"
 )
 
 func init() {
 	runCmd.PersistentFlags().StringVarP(&cfgDir, "config", "c", filepath.Join("/etc", db.AppName), "config directory")
 	runCmd.PersistentFlags().StringVarP(&listen, "listen", "l", "0.0.0.0:2023", "listening address")
 	runCmd.PersistentFlags().BoolVar(&apiOnly, "api-only", false, "run graphql backend without dae")
+	runCmd.PersistentFlags().StringVar(&logFile, "logfile", "", "Log file to write. Empty means writing to stdout and stderr.")
+	runCmd.PersistentFlags().IntVar(&logFileMaxSize, "logfile-maxsize", 30, "Unit: MB. The maximum size in megabytes of the log file before it gets rotated.")
+	runCmd.PersistentFlags().IntVar(&logFileMaxBackups, "logfile-maxbackups", 3, "The maximum number of old log files to retain.")
 	runCmd.PersistentFlags().BoolVarP(&disableTimestamp, "disable-timestamp", "", false, "disable timestamp")
 }
 
@@ -47,10 +51,13 @@ func errorExit(err error) {
 }
 
 var (
-	cfgDir           string
-	disableTimestamp bool
-	listen           string
-	apiOnly          bool
+	cfgDir            string
+	logFile           string
+	logFileMaxSize    int
+	logFileMaxBackups int
+	disableTimestamp  bool
+	listen            string
+	apiOnly           bool
 
 	runCmd = &cobra.Command{
 		Use:   "run",
@@ -74,6 +81,19 @@ var (
 			}
 
 			// Run dae.
+			var logOpts *lumberjack.Logger
+			if logFile != "" {
+				logOpts = &lumberjack.Logger{
+					Filename:   logFile,
+					MaxSize:    logFileMaxSize,
+					MaxAge:     0,
+					MaxBackups: logFileMaxBackups,
+					LocalTime:  true,
+					Compress:   true,
+				}
+				logrus.SetOutput(logOpts)
+				db.SetOutput(logOpts)
+			}
 			go func() {
 				if err := dae.Run(
 					logrus.StandardLogger(),

dae/run.go

@@ -131,8 +131,9 @@ loop:
 			newConf := newReloadMsg.Config
 			/* dae-wing end */
 			// New logger.
-			log = logger.NewLogger(newConf.Global.LogLevel, disableTimestamp)
+			log = logger.NewLogger(newConf.Global.LogLevel, disableTimestamp, nil)
 			logrus.SetLevel(log.Level)
+			log.SetOutput(logrus.StandardLogger().Out)
 
 			// New control plane.
 			obj := c.EjectBpf()

db/db.go

@@ -9,11 +9,15 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"io"
+	"log"
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/daeuniverse/dae-wing/pkg/sqlite"
 	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
 )
 
 const (
@@ -27,7 +31,7 @@ var (
 func InitDatabase(configDir string) (err error) {
 	path := filepath.Join(configDir, filename)
 	db, err = gorm.Open(sqlite.Open(path), &gorm.Config{
-		//Logger: logger.Default.LogMode(logger.Info),
+		// Logger: logger.Default.LogMode(logger.Info),
 	})
 	if err != nil {
 		return fmt.Errorf("%w: %v", err, path)
@@ -60,6 +64,14 @@ func InitDatabase(configDir string) (err error) {
 func DB(ctx context.Context) *gorm.DB {
 	return db.WithContext(ctx)
 }
+func SetOutput(writer io.Writer) {
+	db.Logger = logger.New(log.New(writer, "\r\n", log.LstdFlags), logger.Config{
+		SlowThreshold:             200 * time.Millisecond,
+		LogLevel:                  logger.Warn,
+		IgnoreRecordNotFoundError: false,
+		Colorful:                  false,
+	})
+}
 func BeginTx(ctx context.Context) *gorm.DB {
 	return DB(ctx).Begin(&sql.TxOptions{
 		Isolation: sql.LevelSerializable,

go.mod

@@ -84,6 +84,7 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230706204954-ccb25ca9f130 // indirect
 	google.golang.org/grpc v1.56.2 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	modernc.org/libc v1.24.1 // indirect
 	modernc.org/mathutil v1.6.0 // indirect
 	modernc.org/memory v1.6.0 // indirect

go.sum

@@ -232,6 +232,8 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
 google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
 google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=