package daemon import ( "io" "runtime" "github.com/docker/docker/image/tarexport" "github.com/docker/docker/pkg/system" ) // ExportImage exports a list of images to the given output stream. The // exported images are archived into a tar when written to the output // stream. All images with the given tag and all versions containing // the same tag are exported. names is the set of tags to export, and // outStream is the writer which the images are written to. func (daemon *Daemon) ExportImage(names []string, outStream io.Writer) error { // TODO @jhowardmsft LCOW. This will need revisiting later. platform := runtime.GOOS if system.LCOWSupported() { platform = "linux" } imageExporter := tarexport.NewTarExporter(daemon.stores[platform].imageStore, daemon.stores[platform].layerStore, daemon.referenceStore, daemon) return imageExporter.Save(names, outStream) } // LoadImage uploads a set of images into the repository. This is the // complement of ImageExport. The input stream is an uncompressed tar // ball containing images and metadata. func (daemon *Daemon) LoadImage(inTar io.ReadCloser, outStream io.Writer, quiet bool) error { // TODO @jhowardmsft LCOW. This will need revisiting later. platform := runtime.GOOS if system.LCOWSupported() { platform = "linux" } imageExporter := tarexport.NewTarExporter(daemon.stores[platform].imageStore, daemon.stores[platform].layerStore, daemon.referenceStore, daemon) return imageExporter.Load(inTar, outStream, quiet) }