mirror of https://github.com/k3s-io/k3s
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package kubectl
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import (
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"fmt"
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"math/rand"
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"os"
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"runtime"
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"strings"
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"time"
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"github.com/k3s-io/k3s/pkg/server"
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"github.com/sirupsen/logrus"
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"k8s.io/component-base/cli"
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"k8s.io/kubectl/pkg/cmd"
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"k8s.io/kubectl/pkg/cmd/util"
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)
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func Main() {
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if runtime.GOOS == "windows" {
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os.Args = os.Args[1:]
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}
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kubenv := os.Getenv("KUBECONFIG")
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for i, arg := range os.Args {
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if strings.HasPrefix(arg, "--kubeconfig=") {
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kubenv = strings.Split(arg, "=")[1]
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} else if strings.HasPrefix(arg, "--kubeconfig") && i+1 < len(os.Args) {
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kubenv = os.Args[i+1]
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}
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}
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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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if err := cli.RunNoErrOutput(command); err != nil {
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util.CheckErr(err)
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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 or --write-kubeconfig-group "+
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"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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