configs := handleAndGetXdsConfigs(clientConfig)
	for _, config := range configs {
		cfgType := config.GetTypeUrl()
		switch cfgType {
		case xdsresource.ListenerType:
			lds = formatStatus(config)
		case xdsresource.ClusterType:
			cds = formatStatus(config)
		case xdsresource.RouteType:
			rds = formatStatus(config)
		case xdsresource.EndpointType:

	for _, resp := range istiodResponses {
		if len(resp.Resources) > 0 {
			c.istiod = &configdump.Wrapper{
				ConfigDump: &admin.ConfigDump{
					Configs: resp.Resources,
				},
			}
			break
		}
	}
	if c.istiod == nil {
		return nil, fmt.Errorf("unable to find config dump in Istiod responses")
	}
	envoyDump := &configdump.Wrapper{}
	err := json.Unmarshal(envoyResponse, envoyDump)
	if err != nil {
		return nil, err

			internalLogIf(GlobalContext, errors.New("Detected older 'fifo' quota config, 'fifo' feature is removed and not supported anymore. Please clear your quota configs using 'mc admin bucket quota alias/bucket --clear' and use 'mc ilm add' for expiration of objects"), logger.WarningKind)
			return quotaCfg, fmt.Errorf("invalid quota type 'fifo'")
		}
		return quotaCfg, fmt.Errorf("Invalid quota config %#v", quotaCfg)
	}
	return
}

		// timestamp of last successful refresh
		config.lastRefreshedAt = UTCNow()
		return nil
	default:
		return err
	}

	// Reset drivercache built using current config
	for k := range config.drivercache {
		delete(config.drivercache, k)
	}
	// Remove existing tier configs
	for k := range config.Tiers {
		delete(config.Tiers, k)
	}
	// Copy over the new tier configs
	for tier, cfg := range newConfig.Tiers {

			}
			if errors.Is(err, errConfigNotFound) {
				// legacy file config not found, proceed to look for new metadata.
				continue
			}

			return nil, err
		}
		configs[legacyFile] = configData
		b.Created = info.ModTime
	}

	return configs, nil
}

func (b *BucketMetadata) convertLegacyConfigs(ctx context.Context, objectAPI ObjectLayer, configs map[string][]byte) error {

type ServerSystemConfig struct {
	NEndpoints int
	CmdLines   []string
	MinioEnv   map[string]string
}

// Diff - returns error on first difference found in two configs.
func (s1 *ServerSystemConfig) Diff(s2 *ServerSystemConfig) error {
	ns1 := s1.NEndpoints
	ns2 := s2.NEndpoints
	if ns1 != ns2 {
		return fmt.Errorf("Expected number of endpoints %d, seen %d", ns1, ns2)
	}

// and rootNamespaces configs, caller should be responsible for controlling configs passed
// in.
func findMatchedConfigs(podsLabels klabels.Set, configs []*config.Config) []*config.Config {
	var cfgs []*config.Config

	for _, cfg := range configs {
		cfg := cfg
		labels := cfg.Spec.(Workloader).GetSelector().GetMatchLabels()
		selector := klabels.SelectorFromSet(labels)
		if selector.Matches(podsLabels) {

}

// loadFormatErasureAll - load all format config from all input disks in parallel.
func loadFormatErasureAll(storageDisks []StorageAPI, heal bool) ([]*formatErasureV3, []error) {
	// Initialize list of errors.
	g := errgroup.WithNErrs(len(storageDisks))

	// Initialize format configs.
	formats := make([]*formatErasureV3, len(storageDisks))

	// Load format from each disk in parallel

	revision, injectorAddress string,
) (*ExternalInjector, *meshconfig.MeshConfig, error) {
	var err error
	// Get configs from IOP files firstly, and if not exists, get configs from files and configmaps.
	values, meshConfig, err := getIOPConfigs()
	if err != nil {
		return nil, nil, err
	}
	if meshConfig == nil {
		if meshConfigFile != "" {

			case bucketVersioningConfig:
				config, _, err := globalBucketMetadataSys.GetVersioningConfig(bucket)
				if err != nil {
					writeErrorResponse(ctx, w, exportError(ctx, err, cfgFile, bucket), r.URL)
					return
				}
				// ignore empty versioning configs
				if config.Status != versioning.Enabled && config.Status != versioning.Suspended {
					continue
				}