closeRespFn:      closeRespFn,
	}

	seenClientIDs := set.NewStringSet()

	deprecatedKeys := []string{JwksURL}

	// remove this since we have removed support for this already.
	for k := range s[config.IdentityOpenIDSubSys] {
		for _, dk := range deprecatedKeys {
			kvs := s[config.IdentityOpenIDSubSys][k]
			kvs.Delete(dk)
			s[config.IdentityOpenIDSubSys][k] = kvs
		}
	}

	}
	return json.Unmarshal(data, &aux)
}

// LookupConfig - lookup api config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	deprecatedKeys := []string{
		apiReadyDeadline,
		apiRequestsDeadline,
		"extend_list_cache_life",
		apiReplicationWorkers,
		apiReplicationFailedWorkers,
		"expiry_workers",
	}

func LookupConfig(kvs config.KVS, setDriveCount int) (cfg Config, err error) {
	cfg = Config{}

	deprecatedKeys := []string{
		"dma",
	}

	if err = config.CheckValidKeys(config.StorageClassSubSys, kvs, DefaultKVS, deprecatedKeys...); err != nil {
		return Config{}, err
	}

	ssc := env.Get(StandardEnv, kvs.Get(ClassStandard))
	rrsc := env.Get(RRSEnv, kvs.Get(ClassRRS))

func CheckValidKeys(subSys string, kv KVS, validKVS KVS, deprecatedKeys ...string) error {
	nkv := KVS{}
	for _, kv := range kv {
		// Comment is a valid key, its also fully optional
		// ignore it since it is a valid key for all
		// sub-systems.
		if kv.Key == Comment {
			continue
		}
		var skip bool
		for _, deprecatedKey := range deprecatedKeys {
			if kv.Key == deprecatedKey {
				skip = true
				break
			}
		}