dotcloud/docker

package main

import (
    "context"

    "github.com/containerd/log"
    "google.golang.org/grpc/grpclog"
)

// grpc's default logger is *very* noisy and uses "info" and even "warn" level logging for mostly useless messages.
// This function configures the grpc logger to step down the severity of all messages.
//
// info => trace
// warn => debug
// error => warn
func configureGRPCLog() {
    l := log.G(context.TODO()).WithField("library", "grpc")
    grpclog.SetLoggerV2(grpclog.NewLoggerV2(l.WriterLevel(log.TraceLevel), l.WriterLevel(log.DebugLevel), l.WriterLevel(log.WarnLevel)))
}