}

// DerivePartKey derives an unique 256 bit key from an ObjectKey and the part index.
func (key ObjectKey) DerivePartKey(id uint32) (partKey [32]byte) {
	var bin [4]byte
	binary.LittleEndian.PutUint32(bin[:], id)

	mac := hmac.New(sha256.New, key[:])
	mac.Write(bin[:])
	mac.Sum(partKey[:0])
	return partKey
}

// SealETag seals the etag using the object key.

	dataUsageObjNamePath   = bucketMetaPrefix + SlashSeparator + dataUsageObjName
	dataUsageBloomName     = ".bloomcycle.bin"
	dataUsageBloomNamePath = bucketMetaPrefix + SlashSeparator + dataUsageBloomName

	backgroundHealInfoPath = bucketMetaPrefix + SlashSeparator + ".background-heal.json"

	dataUsageCacheName = ".usage-cache.bin"
)

// storeDataUsageInBackend will store all objects sent on the dui channel until closed.

	cniNetworkConfig     = `{
  "cniVersion": "0.3.1",
  "type": "istio-cni",
  "log_level": "info",
  "kubernetes": {
      "kubeconfig": "__KUBECONFIG_FILEPATH__",
      "cni_bin_dir": "/opt/cni/bin",
      "exclude_namespaces": [ "istio-system" ]
  }
}
`
)

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	return fallback
}

	EnvCompressExtensions      = "MINIO_COMPRESSION_EXTENSIONS"
	EnvCompressMimeTypes       = "MINIO_COMPRESSION_MIME_TYPES"

	// Include-list for compression.
	DefaultExtensions = ".txt,.log,.csv,.json,.tar,.xml,.bin"
	DefaultMimeTypes  = "text/*,application/json,application/xml,binary/octet-stream"
)

// DefaultKVS - default KV config for compression settings
var (
	DefaultKVS = config.KVS{
		config.KV{
			Key:   config.Enable,

func (jd *tierDiskJournal) ReadOnlyPath() string {
	return filepath.Join(jd.diskPath, minioMetaBucket, "ilm", "deletion-journal.ro.bin")
}

func (jd *tierDiskJournal) JournalPath() string {
	return filepath.Join(jd.diskPath, minioMetaBucket, "ilm", "deletion-journal.bin")
}

func (jd *tierDiskJournal) WalkEntries(ctx context.Context, fn walkFn) {
	if err := jd.rotate(); err != nil {

}

func (z *erasureServerPools) rebalanceBuckets(ctx context.Context, poolIdx int) (err error) {
	doneCh := make(chan error, 1)
	defer xioutil.SafeClose(doneCh)

	// Save rebalance.bin periodically.
	go func() {
		// Update rebalance.bin periodically once every 5-10s, chosen randomly
		// to avoid multiple pool leaders herding to update around the same
		// time.
		r := rand.New(rand.NewSource(time.Now().UnixNano()))

				storageLogIf(ctx, fmt.Errorf("saving pool.bin for pool index %d failed with: %v", i, err))
			}
			return err
		}
	}
	return nil
}

const (
	poolMetaName      = "pool.bin"
	poolMetaFormat    = 1
	poolMetaVersionV1 = 1
	poolMetaVersion   = poolMetaVersionV1
)

// Init() initializes pools and saves additional information about them
// in 'pool.bin', this is eventually used for decommissioning the pool.

  "cniVersion": "0.3.1",
  "name": "istio-cni",
  "type": "istio-cni",
  "log_level": "__LOG_LEVEL__",
  "kubernetes": {
      "kubeconfig": "__KUBECONFIG_FILENAME__",
      "cni_bin_dir": "/path/cni/bin"
  }
}
`
)

func TestCreateCNIConfigFile(t *testing.T) {
	cases := []struct {
		name              string
		chainedCNIPlugin  bool
		specifiedConfName string

	}, ObjectOptions{
		VersionID: oi.VersionID,
		NoLock:    true,
	}); err != nil {
		return err
	}

	return nil
}

const (
	batchKeyRotationName               = "batch-rotate.bin"
	batchKeyRotationFormat             = 1
	batchKeyRotateVersionV1            = 1
	batchKeyRotateVersion              = batchKeyRotateVersionV1
	batchKeyRotateAPIVersion           = "v1"

		r := newReader()
		err := localDrive.CreateFile(ctx, "", minioMetaBucket, pathJoin(replicationMRFDir, globalLocalNodeNameHex+".bin"), -1, r)
		r.Close()
		if err == nil {
			break
		}
	}
}

// save mrf entries to nodenamehex.bin
func (p *ReplicationPool) saveMRFEntries(ctx context.Context, entries map[string]MRFReplicateEntry) {
	if !p.initialized() {
		return
	}