// importLayer adds a new layer to the tag and graph store based on the given data. func (d *Driver) importLayer(id string, layerData archive.Reader, parentLayerPaths []string) (size int64, err error) { layerFolder := d.dir(id) tempFolder := layerFolder + "-" + strconv.FormatUint(uint64(random.Rand.Uint32()), 10) if err = os.MkdirAll(tempFolder, 0755); err != nil { logrus.Errorf("Could not create %s %s", tempFolder, err) return } defer func() { _, folderName := filepath.Split(tempFolder) if err2 := hcsshim.DestroyLayer(d.info, folderName); err2 != nil { logrus.Warnf("Couldn't clean-up tempFolder: %s %s", tempFolder, err2) } }() start := time.Now().UTC() logrus.Debugf("Start untar layer") if size, err = chrootarchive.ApplyLayer(tempFolder, layerData); err != nil { return } logrus.Debugf("Untar time: %vs", time.Now().UTC().Sub(start).Seconds()) if err = hcsshim.ImportLayer(d.info, id, tempFolder, parentLayerPaths); err != nil { return } return }
func (d *WindowsGraphDriver) Import(id string, layerData archive.Reader, parentLayerPaths []string) (size int64, err error) { layerFs, err := d.Get(id, "") if err != nil { return } defer func() { if err != nil { d.Put(id) } }() tempFolder := layerFs + "-temp" if err = os.MkdirAll(tempFolder, 0755); err != nil { logrus.Errorf("Could not create %s %s", tempFolder, err) return } defer func() { if err2 := os.RemoveAll(tempFolder); err2 != nil { logrus.Warnf("Couldn't clean-up tempFolder: %s %s", tempFolder, err2) } }() start := time.Now().UTC() logrus.Debugf("Start untar layer") if size, err = chrootarchive.ApplyLayer(tempFolder, layerData); err != nil { return } logrus.Debugf("Untar time: %vs", time.Now().UTC().Sub(start).Seconds()) if err = hcsshim.ImportLayer(d.info, id, tempFolder, parentLayerPaths); err != nil { return } return }
// importLayer adds a new layer to the tag and graph store based on the given data. func (d *Driver) importLayer(id string, layerData archive.Reader, parentLayerPaths []string) (size int64, err error) { if hcsshim.IsTP4() { // Import from TP4 format to maintain compatibility with existing images. var tempFolder string tempFolder, err = ioutil.TempDir("", "hcs") if err != nil { return } defer os.RemoveAll(tempFolder) if size, err = chrootarchive.ApplyLayer(tempFolder, layerData); err != nil { return } if err = hcsshim.ImportLayer(d.info, id, tempFolder, parentLayerPaths); err != nil { return } return } var w hcsshim.LayerWriter w, err = hcsshim.NewLayerWriter(d.info, id, parentLayerPaths) if err != nil { return } size, err = writeLayerFromTar(layerData, w) if err != nil { w.Close() return } err = w.Close() if err != nil { return } return }