kubernetes/cmd/kubectl/kubectl.go

/*
Copyright 2014 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package main

import (
	"os"

	"k8s.io/component-base/cli"
	"k8s.io/component-base/logs"
	"k8s.io/kubectl/pkg/cmd"
	"k8s.io/kubectl/pkg/cmd/util"

	// Import to initialize client auth plugins.
	_ "k8s.io/client-go/plugin/pkg/client/auth"
)

func main() {
	// We need to manually parse the arguments looking for verbosity flag and
	// set appropriate level here, because in the normal flow the flag parsing,
	// including the logging verbosity, happens inside cli.RunNoErrOutput.
	// Doing it here ensures we can continue using klog during kubectl command
	// construction, which includes handling plugins and parsing .kuberc file,
	// for example.
	logs.GlogSetter(cmd.GetLogVerbosity(os.Args)) // nolint:errcheck
	command := cmd.NewDefaultKubectlCommand()
	if err := cli.RunNoErrOutput(command); err != nil {
		// Pretty-print the error and exit with an error.
		util.CheckErr(err)
	}
}