// Whether this container should allocate a buffer for stdin in the container runtime. If this
  // is not set, reads from stdin in the container will always result in EOF.
  // Default is false.
  // +optional
  optional bool stdin = 16;

  // Whether the container runtime should close the stdin channel after it has been opened by
  // a single attach. When stdin is true the stdin stream will remain open across multiple attach

	var errs error
	var reader io.ReadCloser
	warningsByFilename := map[string]validation.Warning{}

	processFile := func(path string) {
		var err error
		if path == "-" {
			reader = io.NopCloser(os.Stdin)
		} else {
			reader, err = os.Open(path)
			if err != nil {
				errs = multierror.Append(errs, fmt.Errorf("cannot read file %q: %v", path, err))
				return
			}
		}

	"istio.io/istio/istioctl/pkg/writer/pilot"
	pilotxds "istio.io/istio/pilot/pkg/xds"
	"istio.io/istio/pkg/log"
)

var configDumpFile string

func readConfigFile(filename string) ([]byte, error) {
	file := os.Stdin
	if filename != "-" {
		var err error
		file, err = os.Open(filename)
		if err != nil {
			return nil, err
		}
	}
	defer func() {
		if err := file.Close(); err != nil {

`,
		RunE: func(c *cobra.Command, _ []string) (err error) {
			if err = validateFlags(); err != nil {
				return err
			}
			var reader io.Reader

			if inFilename == "-" {
				reader = os.Stdin
			} else {
				var in *os.File
				if in, err = os.Open(inFilename); err != nil {
					return err
				}
				reader = in
				defer func() {
					if errClose := in.Close(); errClose != nil {

	if err != nil {
		return nil, err
	}
	return setupConfigdumpEnvoyConfigWriter(debug, out)
}

func readFile(filename string) ([]byte, error) {
	file := os.Stdin
	if filename != "-" {
		var err error
		file, err = os.Open(filename)
		if err != nil {
			return nil, err
		}
	}
	defer func() {
		if err := file.Close(); err != nil {

	if err != nil {
		return nil, err
	}
	return setupConfigdumpZtunnelConfigWriter(debug, out)
}

func readFile(filename string) ([]byte, error) {
	file := os.Stdin
	if filename != "-" {
		var err error
		file, err = os.Open(filename)
		if err != nil {
			return nil, err
		}
	}
	defer func() {
		if err := file.Close(); err != nil {

	K8S_POD_INFRA_CONTAINER_ID types.UnmarshallableString // nolint: revive, stylecheck
}

// parseConfig parses the supplied configuration (and prevResult) from stdin.
func parseConfig(stdin []byte) (*Config, error) {
	conf := Config{}

	if err := json.Unmarshal(stdin, &conf); err != nil {
		return nil, fmt.Errorf("failed to parse network configuration: %v", err)
	}

	log.Debugf("istio-cni: Config is: %+v", conf)

	var readers []local.ReaderSource
	for _, f := range args {
		var r *os.File

		// Handle "-" as stdin as a special case.
		if f == "-" {
			if isatty.IsTerminal(os.Stdin.Fd()) && !isJSONorYAMLOutputFormat() {
				fmt.Fprint(cmd.OutOrStdout(), "Reading from stdin:\n")
			}
			r = os.Stdin
			readers = append(readers, local.ReaderSource{Name: f, Reader: r})
			continue
		}

		fi, err := os.Stat(f)