}

func (v *validator) validateFile(path string, istioNamespace *string, defaultNamespace string, reader io.Reader, writer io.Writer,
) (validation.Warning, error) {
	decoder := yaml.NewDecoder(reader)
	decoder.SetStrict(true)
	var errs error
	var warnings validation.Warning
	for {
		// YAML allows non-string keys and the produces generic keys for nested fields
		raw := make(map[any]any)
		err := decoder.Decode(&raw)

	rd, err := Open(configFile)
	if err != nil {
		return err
	}
	defer rd.Close()

	cf := &config.ServerConfig{}
	dec := yaml.NewDecoder(rd)
	dec.SetStrict(true)
	if err = dec.Decode(cf); err != nil {
		return err
	}
	if cf.Version != "v1" {
		return fmt.Errorf("unexpected version: %s", cf.Version)
	}

	ctxt.RootUser = cf.RootUser