[client] Use the netbird logger for ice and grpc (#3603)

updates the logging implementation to use the netbird logger for both ICE and gRPC components. The key changes include:

- Introducing a gRPC logger configuration in util/log.go that integrates with the netbird logging setup.
- Updating the log hook in formatter/hook/hook.go to ensure a default caller is used when not set.
- Refactoring ICE agent and UDP multiplexers to use a unified logger via the new getLogger() method.

client/iface/bind/udp_mux.go

@@ -150,7 +150,7 @@ func isZeros(ip net.IP) bool {
 // NewUDPMuxDefault creates an implementation of UDPMux
 func NewUDPMuxDefault(params UDPMuxParams) *UDPMuxDefault {
 	if params.Logger == nil {
-		params.Logger = logging.NewDefaultLoggerFactory().NewLogger("ice")
+		params.Logger = getLogger()
 	}
 
 	mux := &UDPMuxDefault{
@@ -455,3 +455,9 @@ func newBufferHolder(size int) *bufferHolder {
 		buf: make([]byte, size),
 	}
 }
+
+func getLogger() logging.LeveledLogger {
+	fac := logging.NewDefaultLoggerFactory()
+	fac.Writer = log.StandardLogger().Writer()
+	return fac.NewLogger("ice")
+}

client/iface/bind/udp_mux_universal.go

@@ -49,7 +49,7 @@ type UniversalUDPMuxParams struct {
 // NewUniversalUDPMuxDefault creates an implementation of UniversalUDPMux embedding UDPMux
 func NewUniversalUDPMuxDefault(params UniversalUDPMuxParams) *UniversalUDPMuxDefault {
 	if params.Logger == nil {
-		params.Logger = logging.NewDefaultLoggerFactory().NewLogger("ice")
+		params.Logger = getLogger()
 	}
 	if params.XORMappedAddrCacheTTL == 0 {
 		params.XORMappedAddrCacheTTL = time.Second * 25

client/internal/peer/ice/agent.go

@@ -4,6 +4,7 @@ import (
 	"time"
 
 	"github.com/pion/ice/v3"
+	"github.com/pion/logging"
 	"github.com/pion/randutil"
 	log "github.com/sirupsen/logrus"
 
@@ -35,6 +36,9 @@ func NewAgent(iFaceDiscover stdnet.ExternalIFaceDiscover, config Config, candida
 		log.Errorf("failed to create pion's stdnet: %s", err)
 	}
 
+	fac := logging.NewDefaultLoggerFactory()
+	fac.Writer = log.StandardLogger().Writer()
+
 	agentConfig := &ice.AgentConfig{
 		MulticastDNSMode:       ice.MulticastDNSModeDisabled,
 		NetworkTypes:           []ice.NetworkType{ice.NetworkTypeUDP4, ice.NetworkTypeUDP6},
@@ -51,6 +55,7 @@ func NewAgent(iFaceDiscover stdnet.ExternalIFaceDiscover, config Config, candida
 		RelayAcceptanceMinWait: &iceRelayAcceptanceMinWait,
 		LocalUfrag:             ufrag,
 		LocalPwd:               pwd,
+		LoggerFactory:          fac,
 	}
 
 	if config.DisableIPv6Discovery {

formatter/hook/hook.go

@@ -3,6 +3,7 @@ package hook
 import (
 	"fmt"
 	"path"
+	"runtime"
 	"runtime/debug"
 	"strings"
 
@@ -40,8 +41,12 @@ func (hook ContextHook) Levels() []logrus.Level {
 
 // Fire extend with the source information the entry.Data
 func (hook ContextHook) Fire(entry *logrus.Entry) error {
-	src := hook.parseSrc(entry.Caller.File)
-	entry.Data[EntryKeySource] = fmt.Sprintf("%s:%v", src, entry.Caller.Line)
+	caller := &runtime.Frame{Line: 0, File: "caller_not_available"}
+	if entry.Caller != nil {
+		caller = entry.Caller
+	}
+	src := hook.parseSrc(caller.File)
+	entry.Data[EntryKeySource] = fmt.Sprintf("%s:%v", src, caller.Line)
 	additionalEntries(entry)
 
 	if entry.Context == nil {

util/log.go

@@ -8,6 +8,7 @@ import (
 	"strconv"
 
 	log "github.com/sirupsen/logrus"
+	"google.golang.org/grpc/grpclog"
 	"gopkg.in/natefinch/lumberjack.v2"
 
 	"github.com/netbirdio/netbird/formatter"
@@ -48,9 +49,28 @@ func InitLog(logLevel string, logPath string) error {
 		formatter.SetTextFormatter(log.StandardLogger())
 	}
 	log.SetLevel(level)
+
+	setGRPCLibLogger()
+
 	return nil
 }
 
+func setGRPCLibLogger() {
+	logOut := log.StandardLogger().Writer()
+	if os.Getenv("GRPC_GO_LOG_SEVERITY_LEVEL") != "info" {
+		grpclog.SetLoggerV2(grpclog.NewLoggerV2(io.Discard, logOut, logOut))
+		return
+	}
+
+	var v int
+	vLevel := os.Getenv("GRPC_GO_LOG_VERBOSITY_LEVEL")
+	if vl, err := strconv.Atoi(vLevel); err == nil {
+		v = vl
+	}
+
+	grpclog.SetLoggerV2(grpclog.NewLoggerV2WithVerbosity(logOut, logOut, logOut, v))
+}
+
 func getLogMaxSize() int {
 	if sizeVar, ok := os.LookupEnv("NB_LOG_MAX_SIZE_MB"); ok {
 		size, err := strconv.ParseInt(sizeVar, 10, 64)