func (*DefaultRemoteExecutor) Execute(req *client.Request, config *client.Config, command []string, stdin io.Reader, stdout, stderr io.Writer, tty bool) error {
executor := remotecommand.New(req, config, command, stdin, stdout, stderr, tty)
return executor.Execute()
}
func RunExec(f *Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer, cmd *cobra.Command, args []string) error {
podName := util.GetFlagString(cmd, "pod")
if len(podName) == 0 {
return util.UsageError(cmd, "POD is required for exec")
}
if len(args) < 1 {
return util.UsageError(cmd, "COMMAND is required for exec")
}
namespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
pod, err := client.Pods(namespace).Get(podName)
if err != nil {
return err
}
if pod.Status.Phase != api.PodRunning {
glog.Fatalf("Unable to execute command because pod is not running. Current status=%v", pod.Status.Phase)
}
containerName := util.GetFlagString(cmd, "container")
if len(containerName) == 0 {
containerName = pod.Spec.Containers[0].Name
}
var stdin io.Reader
tty := util.GetFlagBool(cmd, "tty")
if util.GetFlagBool(cmd, "stdin") {
stdin = cmdIn
if tty {
if file, ok := cmdIn.(*os.File); ok {
inFd := file.Fd()
if term.IsTerminal(inFd) {
oldState, err := term.SetRawTerminal(inFd)
if err != nil {
glog.Fatal(err)
}
// this handles a clean exit, where the command finished
defer term.RestoreTerminal(inFd, oldState)
// SIGINT is handled by term.SetRawTerminal (it runs a goroutine that listens
// for SIGINT and restores the terminal before exiting)
// this handles SIGTERM
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, syscall.SIGTERM)
go func() {
<-sigChan
term.RestoreTerminal(inFd, oldState)
os.Exit(0)
}()
} else {
glog.Warning("Stdin is not a terminal")
}
} else {
tty = false
glog.Warning("Unable to use a TTY")
}
}
}
config, err := f.ClientConfig()
if err != nil {
return err
}
req := client.RESTClient.Get().
Prefix("proxy").
Resource("minions").
Name(pod.Status.Host).
Suffix("exec", namespace, podName, containerName)
e := remotecommand.New(req, config, args, stdin, cmdOut, cmdErr, tty)
return e.Execute()
}