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 {
	generators := f.Generators("expose")
	generator, found := generators[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, mapper, obj, out)
	}
	cmdutil.PrintSuccess(mapper, false, out, mapping.Resource, args[0], "created")

	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, mapper, oldRc, oldRcData); err != nil {
				return err
			}
			if err := f.PrintObject(cmd, mapper, 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: intstr.FromInt(0),
		MaxSurge:       intstr.FromInt(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, mapper, newRc, out)
	}
	kinds, _, err := api.Scheme.ObjectKinds(newRc)
	if err != nil {
		return err
	}
	_, res := meta.KindToResource(kinds[0])
	cmdutil.PrintSuccess(mapper, false, out, res.Resource, oldName, message)
	return nil
}

//.........这里部分代码省略.........
		return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q 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")

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

	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
		}
	}

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

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

	remove := cmdutil.GetFlagBool(cmd, "rm")
	if !attach && remove {
		return cmdutil.UsageError(cmd, "--rm should only be used for attached containers")
	}

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

			CommandName: cmd.Parent().CommandPath() + " attach",

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

		if remove {
			namespace, err = mapping.MetadataAccessor.Namespace(obj)
			if err != nil {
				return err
			}
			var name string
			name, err = mapping.MetadataAccessor.Name(obj)
			if err != nil {
				return err
			}
			_, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd))
			r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
				ContinueOnError().
				NamespaceParam(namespace).DefaultNamespace().
				ResourceNames(mapping.Resource, name).
				Flatten().
				Do()
			return ReapResult(r, f, cmdOut, true, true, 0, -1, false, mapper)
		}
		return nil
	}

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