constellation/internal/logger/grpclogger.go
Daniel Weiße c11631ec11
logging: reduce grpc logging noise (#3329)
* Normalize gRPC logs to print at warn level only
* Fix grpcLogger level enablement

---------

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
2024-08-29 10:44:22 +02:00

107 lines
2.4 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package logger
import (
"context"
"fmt"
"log/slog"
"os"
"runtime"
"time"
"google.golang.org/grpc/grpclog"
)
func replaceGRPCLogger(log *slog.Logger) {
gl := &grpcLogger{
logger: log,
verbosity: 0,
}
grpclog.SetLoggerV2(gl)
}
func (l *grpcLogger) log(level slog.Level, args ...interface{}) {
if l.logger.Enabled(context.Background(), level) {
var pcs [1]uintptr
runtime.Callers(3, pcs[:])
r := slog.NewRecord(time.Now(), level, fmt.Sprint(args...), pcs[0])
_ = l.logger.Handler().Handle(context.Background(), r)
}
}
func (l *grpcLogger) logf(level slog.Level, format string, args ...interface{}) {
if l.logger.Enabled(context.Background(), level) {
var pcs [1]uintptr
runtime.Callers(3, pcs[:])
r := slog.NewRecord(time.Now(), level, fmt.Sprintf(format, args...), pcs[0])
_ = l.logger.Handler().Handle(context.Background(), r)
}
}
type grpcLogger struct {
logger *slog.Logger
verbosity int
}
func (l *grpcLogger) Info(args ...interface{}) {
l.log(slog.LevelInfo, args...)
}
func (l *grpcLogger) Infoln(args ...interface{}) {
l.log(slog.LevelInfo, args...)
}
func (l *grpcLogger) Infof(format string, args ...interface{}) {
l.logf(slog.LevelInfo, format, args...)
}
func (l *grpcLogger) Warning(args ...interface{}) {
l.log(slog.LevelWarn, args...)
}
func (l *grpcLogger) Warningln(args ...interface{}) {
l.log(slog.LevelWarn, args...)
}
func (l *grpcLogger) Warningf(format string, args ...interface{}) {
l.logf(slog.LevelWarn, format, args...)
}
func (l *grpcLogger) Error(args ...interface{}) {
l.log(slog.LevelError, args...)
}
func (l *grpcLogger) Errorln(args ...interface{}) {
l.log(slog.LevelError, args...)
}
func (l *grpcLogger) Errorf(format string, args ...interface{}) {
l.logf(slog.LevelError, format, args...)
}
func (l *grpcLogger) Fatal(args ...interface{}) {
l.log(slog.LevelError, args...)
os.Exit(1)
}
func (l *grpcLogger) Fatalln(args ...interface{}) {
l.log(slog.LevelError, args...)
os.Exit(1)
}
func (l *grpcLogger) Fatalf(format string, args ...interface{}) {
l.logf(slog.LevelError, format, args...)
os.Exit(1)
}
func (l *grpcLogger) V(level int) bool {
// Check whether the verbosity of the current log ('level') is within the specified threshold ('l.verbosity').
// As in https://github.com/grpc/grpc-go/blob/41e044e1c82fcf6a5801d6cbd7ecf952505eecb1/grpclog/loggerv2.go#L199-L201.
return level <= l.verbosity
}