func (l *tarexporter) loadLayer(filename string, rootFS image.RootFS, id string, foreignSrc distribution.Descriptor, progressOutput progress.Output) (layer.Layer, error) {
// We use system.OpenSequential to use sequential file access on Windows, avoiding
// depleting the standby list. On Linux, this equates to a regular os.Open.
rawTar, err := system.OpenSequential(filename)
if err != nil {
logrus.Debugf("Error reading embedded tar: %v", err)
return nil, err
}
defer rawTar.Close()
var r io.Reader
if progressOutput != nil {
fileInfo, err := rawTar.Stat()
if err != nil {
logrus.Debugf("Error statting file: %v", err)
return nil, err
}
r = progress.NewProgressReader(rawTar, progressOutput, fileInfo.Size(), stringid.TruncateID(id), "Loading layer")
} else {
r = rawTar
}
inflatedLayerData, err := archive.DecompressStream(r)
if err != nil {
return nil, err
}
defer inflatedLayerData.Close()
if ds, ok := l.ls.(layer.DescribableStore); ok {
return ds.RegisterWithDescriptor(inflatedLayerData, rootFS.ChainID(), foreignSrc)
}
return l.ls.Register(inflatedLayerData, rootFS.ChainID())
}
func runSecretCreate(dockerCli *command.DockerCli, options createOptions) error {
client := dockerCli.Client()
ctx := context.Background()
var in io.Reader = dockerCli.In()
if options.file != "-" {
file, err := system.OpenSequential(options.file)
if err != nil {
return err
}
in = file
defer file.Close()
}
secretData, err := ioutil.ReadAll(in)
if err != nil {
return fmt.Errorf("Error reading content from %q: %v", options.file, err)
}
spec := swarm.SecretSpec{
Annotations: swarm.Annotations{
Name: options.name,
Labels: runconfigopts.ConvertKVStringsToMap(options.labels.GetAll()),
},
Data: secretData,
}
r, err := client.SecretCreate(ctx, spec)
if err != nil {
return err
}
fmt.Fprintln(dockerCli.Out(), r.ID)
return nil
}
func runLoad(dockerCli *command.DockerCli, opts loadOptions) error {
var input io.Reader = dockerCli.In()
if opts.input != "" {
// We use system.OpenSequential to use sequential file access on Windows, avoiding
// depleting the standby list un-necessarily. On Linux, this equates to a regular os.Open.
file, err := system.OpenSequential(opts.input)
if err != nil {
return err
}
defer file.Close()
input = file
}
// To avoid getting stuck, verify that a tar file is given either in
// the input flag or through stdin and if not display an error message and exit.
if opts.input == "" && dockerCli.In().IsTerminal() {
return fmt.Errorf("requested load from stdin, but stdin is empty")
}
if !dockerCli.Out().IsTerminal() {
opts.quiet = true
}
response, err := dockerCli.Client().ImageLoad(context.Background(), input, opts.quiet)
if err != nil {
return err
}
defer response.Body.Close()
if response.Body != nil && response.JSON {
return jsonmessage.DisplayJSONMessagesToStream(response.Body, dockerCli.Out(), nil)
}
_, err = io.Copy(dockerCli.Out(), response.Body)
return err
}