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Golang Factory.MapBasedSelectorForObject方法代碼示例

本文整理匯總了Golang中k8s/io/kubernetes/pkg/kubectl/cmd/util.Factory.MapBasedSelectorForObject方法的典型用法代碼示例。如果您正苦於以下問題:Golang Factory.MapBasedSelectorForObject方法的具體用法?Golang Factory.MapBasedSelectorForObject怎麽用?Golang Factory.MapBasedSelectorForObject使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在k8s/io/kubernetes/pkg/kubectl/cmd/util.Factory的用法示例。


在下文中一共展示了Factory.MapBasedSelectorForObject方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: RunExpose

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

	mapper, typer := f.Object(false)
	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(namespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Recursive, options.Filenames...).
		ResourceTypeOrNameArgs(false, args...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	// Get the generator, setup and validate all required parameters
	generatorName := cmdutil.GetFlagString(cmd, "generator")
	generators := f.Generators("expose")
	generator, found := generators[generatorName]
	if !found {
		return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
	}
	names := generator.ParamNames()

	err = r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		mapping := info.ResourceMapping()
		if err := f.CanBeExposed(mapping.GroupVersionKind.GroupKind()); err != nil {
			return err
		}

		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.MapBasedSelectorForObject(info.Object)
			if err != nil {
				return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't retrieve 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(info.Object)
			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, ",")
			}
		}

		// Always try to derive protocols from the exposed object, may use
		// different protocols for different ports.
		if _, found := params["protocol"]; found {
			protocolsMap, err := f.ProtocolsForObject(info.Object)
			if err != nil {
				return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find protocol via introspection: %s", err))
			}
			if protocols := kubectl.MakeProtocols(protocolsMap); !kubectl.IsZero(protocols) {
				params["protocols"] = protocols
			}
		}

		if kubectl.IsZero(params["labels"]) {
			labels, err := f.LabelsForObject(info.Object)
			if err != nil {
				return err
			}
			params["labels"] = kubectl.MakeLabels(labels)
		}
		if err = kubectl.ValidateParams(names, params); err != nil {
			return err
		}
		// Check for invalid flags used against the present generator.
		if err := kubectl.EnsureFlagsValid(cmd, generators, generatorName); err != nil {
			return err
		}

		// Generate new object
//.........這裏部分代碼省略.........
開發者ID:FlyWings,項目名稱:kubernetes,代碼行數:101,代碼來源:expose.go


注:本文中的k8s/io/kubernetes/pkg/kubectl/cmd/util.Factory.MapBasedSelectorForObject方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。