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86 lines
2.5 KiB
Markdown
86 lines
2.5 KiB
Markdown
# klog-gokit [](https://circleci.com/gh/simonpasquier/klog-gokit)
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This package is a replacement for [k8s.io/klog](https://github.com/kubernetes/klog)
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in projects that use the [go-kit logger](https://godoc.org/github.com/go-kit/kit/log).
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It also supports [k8s.io/klog/v2](https://pkg.go.dev/k8s.io/klog/v2).
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It is heavily inspired by the [`github.com/kubermatic/glog-gokit`](https://github.com/kubermatic/glog-gokit) package.
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## Usage
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Override the official klog package with this one.
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This simply replaces the code in `vendor/k8s.io/klog` with the code of this package.
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**With dep**
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In your `Gopkg.toml`:
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```toml
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[[override]]
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name = "k8s.io/klog"
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source = "github.com/simonpasquier/klog-gokit"
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```
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**With Go modules**
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Add this line to your `go.mod` file:
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```
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replace k8s.io/klog => github.com/simonpasquier/klog-gokit master
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```
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In your `main.go`:
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```go
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// Import the package like it is original klog
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import "k8s.io/klog"
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// Create go-kit logger in your main.go
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logger := log.NewLogfmtLogger(log.NewSyncWriter(os.Stdout))
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logger = log.With(logger, "ts", log.DefaultTimestampUTC)
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logger = log.With(logger, "caller", log.DefaultCaller)
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logger = level.NewFilter(logger, level.AllowAll())
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// Overriding the default klog with our go-kit klog implementation.
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// Thus we need to pass it our go-kit logger object.
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klog.SetLogger(logger)
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```
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Setting the logger to the klog package **MUST** happen before using klog in any package.
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## Function Levels
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| klog | gokit |
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| ------------ | ----- |
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| Info | Debug |
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| InfoDepth | Debug |
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| Infof | Debug |
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| Infoln | Debug |
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| Warning | Warn |
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| WarningDepth | Warn |
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| Warningf | Warn |
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| Warningln | Warn |
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| Error | Error |
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| ErrorDepth | Error |
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| Errorf | Error |
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| Errorln | Error |
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| Exit | Error |
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| ExitDepth | Error |
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| Exitf | Error |
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| Exitln | Error |
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| Fatal | Error |
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| FatalDepth | Error |
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| Fatalf | Error |
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| Fatalln | Error |
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This table is rather opinionated and build for use with the Kubernetes' [Go client](https://github.com/kubernetes/client-go).
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## Disclaimer
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This project doesn't aim at covering the complete `klog` API. That being said, it should work ok for
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projects that use `k8s.io/client-go` (like [Prometheus](https://github.com/prometheus/prometheus) for instance).
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## License
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Apache License 2.0, see [LICENSE](https://github.com/simonpasquier/klog-gokit/blob/master/LICENSE).
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