Golang Factory.DefaultNamespace方法代码示例

func RunUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList) error {
	schema, err := f.Validator()
	if err != nil {
		return err
	}

	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	patch := cmdutil.GetFlagString(cmd, "patch")
	if len(filenames) == 0 && len(patch) == 0 {
		return cmdutil.UsageError(cmd, "Must specify --filename or --patch to update")
	}
	if len(filenames) != 0 && len(patch) != 0 {
		return cmdutil.UsageError(cmd, "Can not specify both --filename and --patch")
	}

	// TODO: Make patching work with -f, updating with patched JSON input files
	if len(filenames) == 0 {
		name, err := updateWithPatch(cmd, args, f, patch)
		if err != nil {
			return err
		}
		fmt.Fprintf(out, "%s\n", name)
		return nil
	}
	if len(filenames) == 0 {
		return cmdutil.UsageError(cmd, "Must specify --filename to update")
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(cmdNamespace).RequireNamespace().
		FilenameParam(filenames...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	return r.Visit(func(info *resource.Info) error {
		data, err := info.Mapping.Codec.Encode(info.Object)
		if err != nil {
			return err
		}
		obj, err := resource.NewHelper(info.Client, info.Mapping).Update(info.Namespace, info.Name, true, data)
		if err != nil {
			return err
		}
		info.Refresh(obj, true)
		printObjectSpecificMessage(obj, out)
		fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
		return nil
	})
}

func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList) error {
	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(filenames...).
		SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
		SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
		ResourceTypeOrNameArgs(false, args...).RequireObject(false).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found")
	// By default use a reaper to delete all related resources.
	if cmdutil.GetFlagBool(cmd, "cascade") {
		return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"))
	}
	return DeleteResult(r, out, ignoreNotFound)
}

func Run(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	if os.Args[1] == "run-container" {
		printDeprecationWarning("run", "run-container")
	}

	if len(args) != 1 {
		return cmdutil.UsageError(cmd, "NAME is required for run")
	}

	namespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	client, err := f.Client()
	if err != nil {
		return err
	}

	generatorName := cmdutil.GetFlagString(cmd, "generator")
	generator, found := f.Generator(generatorName)
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("Generator: %s not found.", generator))
	}
	names := generator.ParamNames()
	params := qingctl.MakeParams(cmd, names)
	params["name"] = args[0]

	err = qingctl.ValidateParams(names, params)
	if err != nil {
		return err
	}

	controller, err := generator.Generate(params)
	if err != nil {
		return err
	}

	inline := cmdutil.GetFlagString(cmd, "overrides")
	if len(inline) > 0 {
		controller, err = cmdutil.Merge(controller, inline, "ReplicationController")
		if err != nil {
			return err
		}
	}

	// TODO: extract this flag to a central location, when such a location exists.
	if !cmdutil.GetFlagBool(cmd, "dry-run") {
		controller, err = client.ReplicationControllers(namespace).Create(controller.(*api.ReplicationController))
		if err != nil {
			return err
		}
	}

	return f.PrintObject(cmd, controller, out)
}

func RunPortForward(f *cmdutil.Factory, cmd *cobra.Command, args []string, fw portForwarder) error {
	podName := cmdutil.GetFlagString(cmd, "pod")
	if len(podName) == 0 {
		return cmdutil.UsageError(cmd, "POD is required for exec")
	}
	if len(args) < 1 {
		return cmdutil.UsageError(cmd, "at least 1 PORT is required for port-forward")
	}

	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)
	}

	config, err := f.ClientConfig()
	if err != nil {
		return err
	}

	signals := make(chan os.Signal, 1)
	signal.Notify(signals, os.Interrupt)
	defer signal.Stop(signals)

	stopCh := make(chan struct{}, 1)
	go func() {
		<-signals
		close(stopCh)
	}()

	req := client.RESTClient.Get().
		Resource("pods").
		Namespace(namespace).
		Name(pod.Name).
		SubResource("portforward")

	return fw.ForwardPorts(req, config, args, stopCh)
}

func RunCreate(f *cmdutil.Factory, out io.Writer, filenames util.StringList) error {
	schema, err := f.Validator()
	if err != nil {
		return err
	}

	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(cmdNamespace).RequireNamespace().
		FilenameParam(filenames...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	count := 0
	err = r.Visit(func(info *resource.Info) error {
		data, err := info.Mapping.Codec.Encode(info.Object)
		if err != nil {
			return err
		}
		obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, data)
		if err != nil {
			return err
		}
		count++
		info.Refresh(obj, true)
		printObjectSpecificMessage(info.Object, out)
		fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
		return nil
	})
	if err != nil {
		return err
	}
	if count == 0 {
		return fmt.Errorf("no objects passed to create")
	}
	return nil
}

func RunDescribe(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	selector := cmdutil.GetFlagString(cmd, "selector")
	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		SelectorParam(selector).
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}
	mapping, err := r.ResourceMapping()
	if err != nil {
		return err
	}

	describer, err := f.Describer(mapping)
	if err != nil {
		return err
	}
	infos, err := r.Infos()
	if err != nil {
		if errors.IsNotFound(err) && len(args) == 2 {
			return DescribeMatchingResources(mapper, typer, describer, f, cmdNamespace, args[0], args[1], out)
		}
		return err
	}

	for _, info := range infos {
		s, err := describer.Describe(info.Namespace, info.Name)
		if err != nil {
			return err
		}
		fmt.Fprintf(out, "%s\n\n", s)
	}

	return nil
}

func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, filenames util.StringList, out io.Writer) error {
	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).RequireNamespace().
		ResourceTypeOrNameArgs(false, args...).
		FilenameParam(filenames...).
		SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
		SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
		Flatten().
		Do()
	if r.Err() != nil {
		return r.Err()
	}
	return ReapResult(r, f, out, false, cmdutil.GetFlagBool(cmd, "ignore-not-found"), cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"))
}

func updateWithPatch(cmd *cobra.Command, args []string, f *cmdutil.Factory, patch string) (string, error) {
	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return "", err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return "", err
	}
	mapping, err := r.ResourceMapping()
	if err != nil {
		return "", err
	}
	client, err := f.RESTClient(mapping)
	if err != nil {
		return "", err
	}

	infos, err := r.Infos()
	if err != nil {
		return "", err
	}
	name, namespace := infos[0].Name, infos[0].Namespace

	helper := resource.NewHelper(client, mapping)
	_, err = helper.Patch(namespace, name, api.StrategicMergePatchType, []byte(patch))
	return name, err
}

func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	if os.Args[1] == "rollingupdate" {
		printDeprecationWarning("rolling-update", "rollingupdate")
	}
	deploymentKey, filename, image, oldName, err := validateArguments(cmd, args)
	if err != nil {
		return err
	}
	period := cmdutil.GetFlagDuration(cmd, "update-period")
	interval := cmdutil.GetFlagDuration(cmd, "poll-interval")
	timeout := cmdutil.GetFlagDuration(cmd, "timeout")
	dryrun := cmdutil.GetFlagBool(cmd, "dry-run")

	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	client, err := f.Client()
	if err != nil {
		return err
	}

	updaterClient := qingctl.NewRollingUpdaterClient(client)

	var newRc *api.ReplicationController
	// fetch rc
	oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName)
	if err != nil {
		if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 {
			return err
		}
		// We're in the middle of a rename, look for an RC with a source annotation of oldName
		newRc, err := qingctl.FindSourceController(updaterClient, cmdNamespace, oldName)
		if err != nil {
			return err
		}
		return qingctl.Rename(qingctl.NewRollingUpdaterClient(client), newRc, oldName)
	}

	var keepOldName bool

	mapper, typer := f.Object()

	if len(filename) != 0 {
		schema, err := f.Validator()
		if err != nil {
			return err
		}
		obj, err := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
			Schema(schema).
			NamespaceParam(cmdNamespace).RequireNamespace().
			FilenameParam(filename).
			Do().
			Object()
		if err != nil {
			return err
		}
		var ok bool
		// Handle filename input from stdin. The resource builder always returns an api.List
		// when creating resource(s) from a stream.
		if list, ok := obj.(*api.List); ok {
			if len(list.Items) > 1 {
				return cmdutil.UsageError(cmd, "%s specifies multiple items", filename)
			}
			obj = list.Items[0]
		}
		newRc, ok = obj.(*api.ReplicationController)
		if !ok {
			if _, kind, err := typer.ObjectVersionAndKind(obj); err == nil {
				return cmdutil.UsageError(cmd, "%s contains a %s not a ReplicationController", filename, kind)
			}
			glog.V(4).Infof("Object %#v is not a ReplicationController", obj)
			return cmdutil.UsageError(cmd, "%s does not specify a valid ReplicationController", filename)
		}
	}
	// If the --image option is specified, we need to create a new rc with at least one different selector
	// than the old rc. This selector is the hash of the rc, which will differ because the new rc has a
	// different image.
	if len(image) != 0 {
		keepOldName = len(args) == 1
		newName := findNewName(args, oldRc)
		if newRc, err = qingctl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
			return err
		}
		if newRc != nil {
			fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name)
		} else {
			newRc, err = qingctl.CreateNewControllerFromCurrentController(client, cmdNamespace, oldName, newName, image, deploymentKey)
			if err != nil {
				return err
			}
		}
		// Update the existing replication controller with pointers to the 'next' controller
		// and adding the <deploymentKey> label if necessary to distinguish it from the 'next' controller.
		oldHash, err := api.HashObject(oldRc, client.Codec)
		if err != nil {
			return err
		}
		oldRc, err = qingctl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out)
//.........这里部分代码省略.........

// RunGet implements the generic Get command
// TODO: convert all direct flag accessors to a struct and pass that instead of cmd
func RunGet(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	selector := cmdutil.GetFlagString(cmd, "selector")
	allNamespaces := cmdutil.GetFlagBool(cmd, "all-namespaces")
	mapper, typer := f.Object()

	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	if len(args) == 0 {
		fmt.Fprint(out, `
You must specify the type of resource to get. Valid resource types include:
   * pods (aka 'po')
   * replicationcontrollers (aka 'rc')
   * services
   * nodes (aka 'no')
   * events (aka 'ev')
   * secrets
   * limits
   * persistentVolumes (aka 'pv')
   * persistentVolumeClaims (aka 'pvc')
   * quota
`)
		return errors.New("Required resource not specified.")
	}

	// handle watch separately since we cannot watch multiple resource types
	isWatch, isWatchOnly := cmdutil.GetFlagBool(cmd, "watch"), cmdutil.GetFlagBool(cmd, "watch-only")
	if isWatch || isWatchOnly {
		r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
			NamespaceParam(cmdNamespace).DefaultNamespace().AllNamespaces(allNamespaces).
			SelectorParam(selector).
			ResourceTypeOrNameArgs(true, args...).
			SingleResourceType().
			Do()
		if err != nil {
			return err
		}

		mapping, err := r.ResourceMapping()
		if err != nil {
			return err
		}

		printer, err := f.PrinterForMapping(cmd, mapping, allNamespaces)
		if err != nil {
			return err
		}

		obj, err := r.Object()
		if err != nil {
			return err
		}

		rv, err := mapping.MetadataAccessor.ResourceVersion(obj)
		if err != nil {
			return err
		}

		// print the current object
		if !isWatchOnly {
			if err := printer.PrintObj(obj, out); err != nil {
				return fmt.Errorf("unable to output the provided object: %v", err)
			}
		}

		// print watched changes
		w, err := r.Watch(rv)
		if err != nil {
			return err
		}

		qingctl.WatchLoop(w, func(e watch.Event) error {
			return printer.PrintObj(e.Object, out)
		})
		return nil
	}

	b := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		NamespaceParam(cmdNamespace).DefaultNamespace().AllNamespaces(allNamespaces).
		SelectorParam(selector).
		ResourceTypeOrNameArgs(true, args...).
		ContinueOnError().
		Latest()
	printer, generic, err := cmdutil.PrinterForCommand(cmd)
	if err != nil {
		return err
	}

	if generic {
		clientConfig, err := f.ClientConfig()
		if err != nil {
			return err
		}
		defaultVersion := clientConfig.Version

		singular := false
//.........这里部分代码省略.........

func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	namespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(namespace).DefaultNamespace().
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}
	mapping, err := r.ResourceMapping()
	if err != nil {
		return err
	}
	infos, err := r.Infos()
	if err != nil {
		return err
	}
	if len(infos) > 1 {
		return fmt.Errorf("multiple resources provided: %v", args)
	}
	info := infos[0]

	// Get the input object
	client, err := f.RESTClient(mapping)
	if err != nil {
		return err
	}
	inputObject, err := resource.NewHelper(client, mapping).Get(info.Namespace, info.Name)
	if err != nil {
		return err
	}

	// Get the generator, setup and validate all required parameters
	generatorName := cmdutil.GetFlagString(cmd, "generator")
	generator, found := f.Generator(generatorName)
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
	}
	names := generator.ParamNames()
	params := qingctl.MakeParams(cmd, names)
	params["default-name"] = info.Name
	if s, found := params["selector"]; !found || len(s) == 0 || cmdutil.GetFlagInt(cmd, "port") < 1 {
		if len(s) == 0 {
			s, err := f.PodSelectorForObject(inputObject)
			if err != nil {
				return err
			}
			params["selector"] = s
		}
		noPorts := true
		for _, param := range names {
			if param.Name == "port" {
				noPorts = false
				break
			}
		}
		if cmdutil.GetFlagInt(cmd, "port") < 0 && !noPorts {
			ports, err := f.PortsForObject(inputObject)
			if err != nil {
				return err
			}
			switch len(ports) {
			case 0:
				return cmdutil.UsageError(cmd, "couldn't find a suitable port via --port flag or introspection")
			case 1:
				params["port"] = ports[0]
			default:
				return cmdutil.UsageError(cmd, "more than one port to choose from, please explicitly specify a port using the --port flag.")
			}
		}
	}
	if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
		params["create-external-load-balancer"] = "true"
	}
	if len(params["labels"]) == 0 {
		labels, err := f.LabelsForObject(inputObject)
		if err != nil {
			return err
		}
		params["labels"] = qingctl.MakeLabels(labels)
	}
	if v := cmdutil.GetFlagString(cmd, "type"); v != "" {
		params["type"] = v
	}
	err = qingctl.ValidateParams(names, params)
	if err != nil {
		return err
	}

	// Expose new object
	object, err := generator.Generate(params)
	if err != nil {
//.........这里部分代码省略.........

func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	resources, labelArgs := []string{}, []string{}
	first := true
	for _, s := range args {
		isLabel := strings.Contains(s, "=") || strings.HasSuffix(s, "-")
		switch {
		case first && isLabel:
			first = false
			fallthrough
		case !first && isLabel:
			labelArgs = append(labelArgs, s)
		case first && !isLabel:
			resources = append(resources, s)
		case !first && !isLabel:
			return cmdutil.UsageError(cmd, "all resources must be specified before label changes: %s", s)
		}
	}
	if len(resources) < 1 {
		return cmdutil.UsageError(cmd, "one or more resources must be specified as <resource> <name> or <resource>/<name>")
	}
	if len(labelArgs) < 1 {
		return cmdutil.UsageError(cmd, "at least one label update is required")
	}

	selector := cmdutil.GetFlagString(cmd, "selector")
	all := cmdutil.GetFlagBool(cmd, "all")
	overwrite := cmdutil.GetFlagBool(cmd, "overwrite")
	resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")

	cmdNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	labels, remove, err := parseLabels(labelArgs)
	if err != nil {
		return cmdutil.UsageError(cmd, err.Error())
	}

	mapper, typer := f.Object()
	b := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		SelectorParam(selector).
		ResourceTypeOrNameArgs(all, resources...).
		Flatten().
		Latest()

	one := false
	r := b.Do().IntoSingular(&one)
	if err := r.Err(); err != nil {
		return err
	}
	// only apply resource version locking on a single resource
	if !one && len(resourceVersion) > 0 {
		return cmdutil.UsageError(cmd, "--resource-version may only be used with a single resource")
	}

	// TODO: support bulk generic output a la Get
	return r.Visit(func(info *resource.Info) error {
		obj, err := updateObject(info, func(obj runtime.Object) (runtime.Object, error) {
			outObj, err := labelFunc(obj, overwrite, resourceVersion, labels, remove)
			if err != nil {
				return nil, err
			}
			return outObj, nil
		})
		if err != nil {
			return err
		}

		printer, err := f.PrinterForMapping(cmd, info.Mapping, false)
		if err != nil {
			return err
		}
		return printer.PrintObj(obj, out)
	})
}

// RunLog retrieves a pod log
func RunLog(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
	if len(os.Args) > 1 && os.Args[1] == "log" {
		printDeprecationWarning("logs", "log")
	}

	if len(args) == 0 {
		return cmdutil.UsageError(cmd, "POD is required for log")
	}

	if len(args) > 2 {
		return cmdutil.UsageError(cmd, "log POD [CONTAINER]")
	}

	namespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	client, err := f.Client()
	if err != nil {
		return err
	}

	podID := args[0]

	pod, err := client.Pods(namespace).Get(podID)
	if err != nil {
		return err
	}

	var container string
	if len(args) == 1 {
		if len(pod.Spec.Containers) != 1 {
			return fmt.Errorf("POD %s has more than one container; please specify the container to print logs for", pod.ObjectMeta.Name)
		}
		container = pod.Spec.Containers[0].Name
	} else {
		container = args[1]
	}

	follow := false
	if cmdutil.GetFlagBool(cmd, "follow") {
		follow = true
	}

	previous := false
	if cmdutil.GetFlagBool(cmd, "previous") {
		previous = true
	}

	readCloser, err := client.RESTClient.Get().
		Namespace(namespace).
		Name(podID).
		Resource("pods").
		SubResource("log").
		Param("follow", strconv.FormatBool(follow)).
		Param("container", container).
		Param("previous", strconv.FormatBool(previous)).
		Stream()
	if err != nil {
		return err
	}

	defer readCloser.Close()
	_, err = io.Copy(out, readCloser)
	return err
}

func RunExec(f *cmdutil.Factory, cmd *cobra.Command, cmdIn io.Reader, cmdOut, cmdErr io.Writer, p *execParams, argsIn []string, re remoteExecutor) error {
	podName, containerName, args, err := extractPodAndContainer(cmd, argsIn, p)
	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 %s is not running. Current status=%v", podName, pod.Status.Phase)
	}

	if len(containerName) == 0 {
		glog.V(4).Infof("defaulting container name to %s", pod.Spec.Containers[0].Name)
		containerName = pod.Spec.Containers[0].Name
	}

	var stdin io.Reader
	tty := p.tty
	if p.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().
		Resource("pods").
		Name(pod.Name).
		Namespace(namespace).
		SubResource("exec").
		Param("container", containerName)

	return re.Execute(req, config, args, stdin, cmdOut, cmdErr, tty)
}