Golang Factory.PrintObject方法代码示例

func generateService(f *cmdutil.Factory, cmd *cobra.Command, args []string, serviceGenerator string, paramsIn map[string]interface{}, namespace string, out io.Writer) error {
	generator, found := f.Generator(serviceGenerator)
	if !found {
		return fmt.Errorf("missing service generator: %s", serviceGenerator)
	}
	names := generator.ParamNames()

	port := cmdutil.GetFlagInt(cmd, "port")
	if port < 1 {
		return fmt.Errorf("--port must be a positive integer when exposing a service")
	}

	params := map[string]interface{}{}
	for key, value := range paramsIn {
		_, isString := value.(string)
		if isString {
			params[key] = value
		}
	}

	name, found := params["name"]
	if !found || len(name.(string)) == 0 {
		return fmt.Errorf("name is a required parameter")
	}
	selector, found := params["labels"]
	if !found || len(selector.(string)) == 0 {
		selector = fmt.Sprintf("run=%s", name.(string))
	}
	params["selector"] = selector

	if defaultName, found := params["default-name"]; !found || len(defaultName.(string)) == 0 {
		params["default-name"] = name
	}

	obj, _, mapper, mapping, err := createGeneratedObject(f, cmd, generator, names, params, cmdutil.GetFlagString(cmd, "service-overrides"), namespace)
	if err != nil {
		return err
	}

	if cmdutil.GetFlagString(cmd, "output") != "" {
		return f.PrintObject(cmd, obj, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, mapping.Resource, args[0], "created")

	return nil
}

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

	// validate flags
	if err := validateFlags(cmd); err != nil {
		return err
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
		ContinueOnError().
		NamespaceParam(namespace).DefaultNamespace().
		FilenameParam(enforceNamespace, filenames...).
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	infos, err := r.Infos()
	if err != nil {
		return err
	}
	if len(infos) > 1 {
		return fmt.Errorf("multiple resources provided: %v", args)
	}
	info := infos[0]
	mapping := info.ResourceMapping()
	if err := f.CanBeAutoscaled(mapping.Kind); 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 := kubectl.MakeParams(cmd, names)
	name := info.Name
	params["default-name"] = name

	params["scaleRef-kind"] = mapping.Kind
	params["scaleRef-name"] = name
	params["scaleRef-apiVersion"] = mapping.APIVersion

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

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

	resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
	hpa, err := resourceMapper.InfoForObject(object)
	if err != nil {
		return err
	}
	// TODO: extract this flag to a central location, when such a location exists.
	if cmdutil.GetFlagBool(cmd, "dry-run") {
		return f.PrintObject(cmd, object, out)
	}

	// Serialize the configuration into an annotation.
	if err := kubectl.UpdateApplyAnnotation(hpa); err != nil {
		return err
	}

	object, err = resource.NewHelper(hpa.Client, hpa.Mapping).Create(namespace, false, object)
	if err != nil {
		return err
	}

	if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
		return f.PrintObject(cmd, object, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "autoscaled")
	return nil
}

//.........这里部分代码省略.........
	tty := cmdutil.GetFlagBool(cmd, "tty")
	if tty && !interactive {
		return cmdutil.UsageError(cmd, "-i/--stdin is required for containers with --tty=true")
	}
	replicas := cmdutil.GetFlagInt(cmd, "replicas")
	if interactive && replicas != 1 {
		return cmdutil.UsageError(cmd, fmt.Sprintf("-i/--stdin requires that replicas is 1, found %d", replicas))
	}

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

	restartPolicy, err := getRestartPolicy(cmd, interactive)
	if err != nil {
		return err
	}
	if restartPolicy != api.RestartPolicyAlways && replicas != 1 {
		return cmdutil.UsageError(cmd, fmt.Sprintf("--restart=%s requires that --replicas=1, found %d", restartPolicy, replicas))
	}

	generatorName := cmdutil.GetFlagString(cmd, "generator")
	if len(generatorName) == 0 {
		if restartPolicy == api.RestartPolicyAlways {
			generatorName = "run/v1"
		} else {
			generatorName = "run-pod/v1"
		}
	}
	generator, found := f.Generator(generatorName)
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("Generator: %s not found.", generatorName))
	}
	names := generator.ParamNames()
	params := kubectl.MakeParams(cmd, names)
	params["name"] = args[0]
	if len(args) > 1 {
		params["args"] = args[1:]
	}

	params["env"] = cmdutil.GetFlagStringSlice(cmd, "env")

	if cmdutil.GetFlagBool(cmd, "expose") {
		serviceGenerator := cmdutil.GetFlagString(cmd, "service-generator")
		if len(serviceGenerator) == 0 {
			return cmdutil.UsageError(cmd, fmt.Sprintf("No service generator specified"))
		}
		if err := generateService(f, cmd, args, serviceGenerator, params, namespace, cmdOut); err != nil {
			return err
		}
	}

	obj, _, mapper, mapping, err := createGeneratedObject(f, cmd, generator, names, params, cmdutil.GetFlagString(cmd, "overrides"), namespace)
	if err != nil {
		return err
	}
	attachFlag := cmd.Flags().Lookup("attach")
	attach := cmdutil.GetFlagBool(cmd, "attach")

	if !attachFlag.Changed && interactive {
		attach = true
	}

	if attach {
		opts := &AttachOptions{
			In:    cmdIn,
			Out:   cmdOut,
			Err:   cmdErr,
			Stdin: interactive,
			TTY:   tty,

			Attach: &DefaultRemoteAttach{},
		}
		config, err := f.ClientConfig()
		if err != nil {
			return err
		}
		opts.Config = config

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

		attachablePod, err := f.AttachablePodForObject(obj)
		if err != nil {
			return err
		}
		return handleAttachPod(client, attachablePod, opts)
	}

	outputFormat := cmdutil.GetFlagString(cmd, "output")
	if outputFormat != "" {
		return f.PrintObject(cmd, obj, cmdOut)
	}
	cmdutil.PrintSuccess(mapper, false, cmdOut, mapping.Resource, args[0], "created")
	return nil
}

//.........这里部分代码省略.........
			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 && len(options.Filenames) == 0 {
		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, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	lbls, 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().
		FilenameParam(enforceNamespace, options.Filenames...).
		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, err error) error {
		if err != nil {
			return err
		}

		var outputObj runtime.Object
		if cmdutil.GetFlagBool(cmd, "dry-run") {
			err = labelFunc(info.Object, overwrite, resourceVersion, lbls, remove)
			if err != nil {
				return err
			}
			outputObj = info.Object
		} else {
			name, namespace, obj := info.Name, info.Namespace, info.Object
			oldData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			if err := labelFunc(obj, overwrite, resourceVersion, lbls, remove); err != nil {
				return err
			}
			newData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, obj)
			if err != nil {
				return err
			}

			mapping := info.ResourceMapping()
			client, err := f.RESTClient(mapping)
			if err != nil {
				return err
			}
			helper := resource.NewHelper(client, mapping)

			outputObj, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
			if err != nil {
				return err
			}
		}
		outputFormat := cmdutil.GetFlagString(cmd, "output")
		if outputFormat != "" {
			return f.PrintObject(cmd, outputObj, out)
		}
		cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "labeled")
		return nil
	})
}

//.........这里部分代码省略.........
		newName := findNewName(args, oldRc)
		if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
			return err
		}

		if newRc == nil {
			return cmdutil.UsageError(cmd, "Could not find %s to rollback.\n", newName)
		}
	}

	if oldName == newRc.Name {
		return cmdutil.UsageError(cmd, "%s cannot have the same name as the existing ReplicationController %s",
			filename, oldName)
	}

	updater := kubectl.NewRollingUpdater(newRc.Namespace, client)

	// To successfully pull off a rolling update the new and old rc have to differ
	// by at least one selector. Every new pod should have the selector and every
	// old pod should not have the selector.
	var hasLabel bool
	for key, oldValue := range oldRc.Spec.Selector {
		if newValue, ok := newRc.Spec.Selector[key]; ok && newValue != oldValue {
			hasLabel = true
			break
		}
	}
	if !hasLabel {
		return cmdutil.UsageError(cmd, "%s must specify a matching key with non-equal value in Selector for %s",
			filename, oldName)
	}
	// TODO: handle scales during rolling update
	if replicasDefaulted {
		newRc.Spec.Replicas = oldRc.Spec.Replicas
	}
	if dryrun {
		oldRcData := &bytes.Buffer{}
		newRcData := &bytes.Buffer{}
		if outputFormat == "" {
			oldRcData.WriteString(oldRc.Name)
			newRcData.WriteString(newRc.Name)
		} else {
			if err := f.PrintObject(cmd, oldRc, oldRcData); err != nil {
				return err
			}
			if err := f.PrintObject(cmd, newRc, newRcData); err != nil {
				return err
			}
		}
		fmt.Fprintf(out, "Rolling from:\n%s\nTo:\n%s\n", string(oldRcData.Bytes()), string(newRcData.Bytes()))
		return nil
	}
	updateCleanupPolicy := kubectl.DeleteRollingUpdateCleanupPolicy
	if keepOldName {
		updateCleanupPolicy = kubectl.RenameRollingUpdateCleanupPolicy
	}
	config := &kubectl.RollingUpdaterConfig{
		Out:            out,
		OldRc:          oldRc,
		NewRc:          newRc,
		UpdatePeriod:   period,
		Interval:       interval,
		Timeout:        timeout,
		CleanupPolicy:  updateCleanupPolicy,
		MaxUnavailable: util.NewIntOrStringFromInt(0),
		MaxSurge:       util.NewIntOrStringFromInt(1),
	}
	if rollback {
		err = kubectl.AbortRollingUpdate(config)
		if err != nil {
			return err
		}
		client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc)
	}
	err = updater.Update(config)
	if err != nil {
		return err
	}

	message := "rolling updated"
	if keepOldName {
		newRc.Name = oldName
	} else {
		message = fmt.Sprintf("rolling updated to %q", newRc.Name)
	}
	newRc, err = client.ReplicationControllers(cmdNamespace).Get(newRc.Name)
	if err != nil {
		return err
	}
	if outputFormat != "" {
		return f.PrintObject(cmd, newRc, out)
	}
	_, kind, err := api.Scheme.ObjectVersionAndKind(newRc)
	if err != nil {
		return err
	}
	_, res := meta.KindToResource(kind, false)
	cmdutil.PrintSuccess(mapper, false, out, res, oldName, message)
	return nil
}

//.........这里部分代码省略.........
	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 := kubectl.MakeParams(cmd, names)
	params["default-name"] = info.Name

	// For objects that need a pod selector, derive it from the exposed object in case a user
	// didn't explicitly specify one via --selector
	if s, found := params["selector"]; found && kubectl.IsZero(s) {
		s, err := f.PodSelectorForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find selectors via --selector flag or introspection: %s", err))
		}
		params["selector"] = s
	}

	if cmdutil.GetFlagInt(cmd, "port") < 1 {
		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 cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
			}
			switch len(ports) {
			case 0:
				return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
			case 1:
				params["port"] = ports[0]
			default:
				return cmdutil.UsageError(cmd, fmt.Sprintf("multiple ports to choose from: %v, please explicitly specify a port using the --port flag.", ports))
			}
		}
	}
	if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
		params["create-external-load-balancer"] = "true"
	}
	if kubectl.IsZero(params["labels"]) {
		labels, err := f.LabelsForObject(inputObject)
		if err != nil {
			return err
		}
		params["labels"] = kubectl.MakeLabels(labels)
	}
	if v := cmdutil.GetFlagString(cmd, "type"); v != "" {
		params["type"] = v
	}
	err = kubectl.ValidateParams(names, params)
	if err != nil {
		return err
	}

	// Expose new object
	object, err := generator.Generate(params)
	if err != nil {
		return err
	}

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

	resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
	info, err = resourceMapper.InfoForObject(object)
	if err != nil {
		return err
	}
	// TODO: extract this flag to a central location, when such a location exists.
	if cmdutil.GetFlagBool(cmd, "dry-run") {
		fmt.Fprintln(out, "running in dry-run mode...")
	} else {
		// Serialize the configuration into an annotation.
		if err := kubectl.UpdateApplyAnnotation(info); err != nil {
			return err
		}

		object, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, info.Object)
		if err != nil {
			return err
		}
	}
	outputFormat := cmdutil.GetFlagString(cmd, "output")
	if outputFormat != "" {
		return f.PrintObject(cmd, object, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "exposed")
	return nil
}

//.........这里部分代码省略.........
	// Get the input object
	inputObject, err := r.Object()
	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 := kubectl.MakeParams(cmd, names)
	name := info.Name
	if len(name) > validation.DNS952LabelMaxLength {
		name = name[:validation.DNS952LabelMaxLength]
	}
	params["default-name"] = name

	// For objects that need a pod selector, derive it from the exposed object in case a user
	// didn't explicitly specify one via --selector
	if s, found := params["selector"]; found && kubectl.IsZero(s) {
		s, err := f.PodSelectorForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find selectors via --selector flag or introspection: %s", err))
		}
		params["selector"] = s
	}

	// For objects that need a port, derive it from the exposed object in case a user
	// didn't explicitly specify one via --port
	if port, found := params["port"]; found && kubectl.IsZero(port) {
		ports, err := f.PortsForObject(inputObject)
		if err != nil {
			return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
		}
		switch len(ports) {
		case 0:
			return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
		case 1:
			params["port"] = ports[0]
		default:
			params["ports"] = strings.Join(ports, ",")
		}
	}
	if kubectl.IsZero(params["labels"]) {
		labels, err := f.LabelsForObject(inputObject)
		if err != nil {
			return err
		}
		params["labels"] = kubectl.MakeLabels(labels)
	}
	if err = kubectl.ValidateParams(names, params); err != nil {
		return err
	}

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

	if inline := cmdutil.GetFlagString(cmd, "overrides"); len(inline) > 0 {
		object, err = cmdutil.Merge(object, inline, mapping.Kind)
		if err != nil {
			return err
		}
	}

	resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
	info, err = resourceMapper.InfoForObject(object)
	if err != nil {
		return err
	}
	// TODO: extract this flag to a central location, when such a location exists.
	if cmdutil.GetFlagBool(cmd, "dry-run") {
		return f.PrintObject(cmd, object, out)
	}
	// Serialize the configuration into an annotation.
	if err := kubectl.UpdateApplyAnnotation(info); err != nil {
		return err
	}

	// Serialize the object with the annotation applied.
	data, err := info.Mapping.Codec.Encode(object)
	if err != nil {
		return err
	}
	object, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, data)
	if err != nil {
		return err
	}

	if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
		return f.PrintObject(cmd, object, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "exposed")
	return nil
}

//.........这里部分代码省略.........
	params["env"] = cmdutil.GetFlagStringSlice(cmd, "env")

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

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

	mapper, typer := f.Object()
	version, kind, err := typer.ObjectVersionAndKind(obj)
	if err != nil {
		return err
	}

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

	mapping, err := mapper.RESTMapping(kind, version)
	if err != nil {
		return err
	}
	client, err := f.RESTClient(mapping)
	if err != nil {
		return err
	}

	// TODO: extract this flag to a central location, when such a location exists.
	if !cmdutil.GetFlagBool(cmd, "dry-run") {
		resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
		info, err := resourceMapper.InfoForObject(obj)
		if err != nil {
			return err
		}

		// Serialize the configuration into an annotation.
		if err := kubectl.UpdateApplyAnnotation(info); err != nil {
			return err
		}

		obj, err = resource.NewHelper(client, mapping).Create(namespace, false, info.Object)
		if err != nil {
			return err
		}
	}

	attachFlag := cmd.Flags().Lookup("attach")
	attach := cmdutil.GetFlagBool(cmd, "attach")

	if !attachFlag.Changed && interactive {
		attach = true
	}

	if attach {
		opts := &AttachOptions{
			In:    cmdIn,
			Out:   cmdOut,
			Err:   cmdErr,
			Stdin: interactive,
			TTY:   tty,

			Attach: &DefaultRemoteAttach{},
		}
		config, err := f.ClientConfig()
		if err != nil {
			return err
		}
		opts.Config = config

		client, err := f.Client()
		if err != nil {
			return err
		}
		opts.Client = client
		// TODO: this should be abstracted into Factory to support other types
		switch t := obj.(type) {
		case *api.ReplicationController:
			return handleAttachReplicationController(client, t, opts)
		case *api.Pod:
			return handleAttachPod(client, t, opts)
		default:
			return fmt.Errorf("cannot attach to %s: not implemented", kind)
		}
	}

	outputFormat := cmdutil.GetFlagString(cmd, "output")
	if outputFormat != "" {
		return f.PrintObject(cmd, obj, cmdOut)
	}
	cmdutil.PrintSuccess(mapper, false, cmdOut, mapping.Resource, args[0], "created")
	return nil
}