mirror of https://github.com/k3s-io/k3s
64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
package kubectl
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import (
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goflag "flag"
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"fmt"
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"math/rand"
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"os"
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"time"
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"github.com/rancher/k3s/pkg/server"
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"github.com/sirupsen/logrus"
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"github.com/spf13/pflag"
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utilflag "k8s.io/component-base/cli/flag"
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"k8s.io/component-base/logs"
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"k8s.io/kubectl/pkg/cmd"
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)
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func Main() {
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kubenv := os.Getenv("KUBECONFIG")
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if kubenv == "" {
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config, err := server.HomeKubeConfig(false, false)
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if _, serr := os.Stat(config); err == nil && serr == nil {
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os.Setenv("KUBECONFIG", config)
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}
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if err := checkReadConfigPermissions(config); err != nil {
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logrus.Warn(err)
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}
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}
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main()
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}
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func main() {
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rand.Seed(time.Now().UnixNano())
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command := cmd.NewDefaultKubectlCommand()
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// TODO: once we switch everything over to Cobra commands, we can go back to calling
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// utilflag.InitFlags() (by removing its pflag.Parse() call). For now, we have to set the
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// normalize func and add the go flag set by hand.
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pflag.CommandLine.SetNormalizeFunc(utilflag.WordSepNormalizeFunc)
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pflag.CommandLine.AddGoFlagSet(goflag.CommandLine)
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// utilflag.InitFlags()
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logs.InitLogs()
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defer logs.FlushLogs()
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if err := command.Execute(); err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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os.Exit(1)
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}
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}
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func checkReadConfigPermissions(configFile string) error {
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file, err := os.OpenFile(configFile, os.O_RDONLY, 0600)
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if err != nil {
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if os.IsPermission(err) {
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return fmt.Errorf("Unable to read %s, please start server "+
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"with --write-kubeconfig-mode to modify kube config permissions", configFile)
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}
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}
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file.Close()
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return nil
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}
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