README.md

glog-gokit

This packages is a replacement for glog in projects that use the go-kit logger.

It is inspired by istio's glog package for zap: https://github.com/istio/glog

Usage

Override the official glog package with this one. This simply replaces the code in vendor/golang/glog with the code of this package.

With dep

In your Gopkg.toml:

[[override]]
  name = "github.com/golang/glog"
  source = "github.com/kubermatic/glog-gokit"

With Go modules

Add this line to your go.mod file:

replace github.com/golang/glog => github.com/kubermatic/glog-gokit master

In your main.go:

// Import the package like it is original glog
import "github.com/golang/glog"


// Create go-kit logger in your main.go
logger := log.NewLogfmtLogger(log.NewSyncWriter(os.Stdout))
logger = log.With(logger, "ts", log.DefaultTimestampUTC)
logger = log.With(logger, "caller", log.DefaultCaller)
logger = level.NewFilter(logger, level.AllowAll())

// Overriding the default glog with our go-kit glog implementation.
// Thus we need to pass it our go-kit logger object.
glog.SetLogger(logger)

Setting the logger to the glog package MUST happen before using glog in any package.

Function Levels

glog	gokit
Info	Debug
InfoDepth	Debug
Infof	Debug
Infoln	Debug
Warning	Warn
WarningDepth	Warn
Warningf	Warn
Warningln	Warn
Error	Error
ErrorDepth	Error
Errorf	Error
Errorln	Error
Exit	Error
ExitDepth	Error
Exitf	Error
Exitln	Error
Fatal	Error
FatalDepth	Error
Fatalf	Error
Fatalln	Error

This table is rather opinionated and build for use with the Kubernetes' Go client.