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-klog
-====
-
-klog is a permanent fork of https://github.com/golang/glog.
-
-## Why was klog created?
-
-The decision to create klog was one that wasn't made lightly, but it was necessary due to some
-drawbacks that are present in [glog](https://github.com/golang/glog). Ultimately, the fork was created due to glog not being under active development; this can be seen in the glog README:
-
-> The code in this repo [...] is not itself under development
-
-This makes us unable to solve many use cases without a fork. The factors that contributed to needing feature development are listed below:
-
- * `glog` [presents a lot "gotchas"](https://github.com/kubernetes/kubernetes/issues/61006) and introduces challenges in containerized environments, all of which aren't well documented.
- * `glog` doesn't provide an easy way to test logs, which detracts from the stability of software using it
- * A long term goal is to implement a logging interface that allows us to add context, change output format, etc.
-
-Historical context is available here:
-
- * https://github.com/kubernetes/kubernetes/issues/61006
- * https://github.com/kubernetes/kubernetes/issues/70264
- * https://groups.google.com/forum/#!msg/kubernetes-sig-architecture/wCWiWf3Juzs/hXRVBH90CgAJ
- * https://groups.google.com/forum/#!msg/kubernetes-dev/7vnijOMhLS0/1oRiNtigBgAJ
-
-----
-
-How to use klog
-===============
-- Replace imports for `github.com/golang/glog` with `k8s.io/klog`
-- Use `klog.InitFlags(nil)` explicitly for initializing global flags as we no longer use `init()` method to register the flags
-- You can now use `log-file` instead of `log-dir` for logging to a single file (See `examples/log_file/usage_log_file.go`)
-- If you want to redirect everything logged using klog somewhere else (say syslog!), you can use `klog.SetOutput()` method and supply a `io.Writer`. (See `examples/set_output/usage_set_output.go`)
-- For more logging conventions (See [Logging Conventions](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/logging.md))
-
-### Coexisting with glog
-This package can be used side by side with glog. [This example](examples/coexist_glog/coexist_glog.go) shows how to initialize and syncronize flags from the global `flag.CommandLine` FlagSet. In addition, the example makes use of stderr as combined output by setting `alsologtostderr` (or `logtostderr`) to `true`.
-
-## Community, discussion, contribution, and support
-
-Learn how to engage with the Kubernetes community on the [community page](http://kubernetes.io/community/).
-
-You can reach the maintainers of this project at:
-
-- [Slack](https://kubernetes.slack.com/messages/sig-architecture)
-- [Mailing List](https://groups.google.com/forum/#!forum/kubernetes-sig-architecture)
-
-### Code of conduct
-
-Participation in the Kubernetes community is governed by the [Kubernetes Code of Conduct](code-of-conduct.md).
-
-----
-
-glog
-====
-
-Leveled execution logs for Go.
-
-This is an efficient pure Go implementation of leveled logs in the
-manner of the open source C++ package
- https://github.com/google/glog
-
-By binding methods to booleans it is possible to use the log package
-without paying the expense of evaluating the arguments to the log.
-Through the -vmodule flag, the package also provides fine-grained
-control over logging at the file level.
-
-The comment from glog.go introduces the ideas:
-
- Package glog implements logging analogous to the Google-internal
- C++ INFO/ERROR/V setup. It provides functions Info, Warning,
- Error, Fatal, plus formatting variants such as Infof. It
- also provides V-style logging controlled by the -v and
- -vmodule=file=2 flags.
-
- Basic examples:
-
- glog.Info("Prepare to repel boarders")
-
- glog.Fatalf("Initialization failed: %s", err)
-
- See the documentation for the V function for an explanation
- of these examples:
-
- if glog.V(2) {
- glog.Info("Starting transaction...")
- }
-
- glog.V(2).Infoln("Processed", nItems, "elements")
-
-
-The repository contains an open source version of the log package
-used inside Google. The master copy of the source lives inside
-Google, not here. The code in this repo is for export only and is not itself
-under development. Feature requests will be ignored.
-
-Send bug reports to golang-nuts@googlegroups.com.