本文整理匯總了Golang中github.com/docker/docker/image.Image.SetGraph方法的典型用法代碼示例。如果您正苦於以下問題：Golang Image.SetGraph方法的具體用法？Golang Image.SetGraph怎麽用？Golang Image.SetGraph使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/docker/docker/image.Image的用法示例。
在下文中一共展示了Image.SetGraph方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: Register
// Register imports a pre-existing image into the graph.
func (graph *Graph) Register(img *image.Image, layerData archive.ArchiveReader) (err error) {
if err := image.ValidateID(img.ID); err != nil {
return err
}
// We need this entire operation to be atomic within the engine. Note that
// this doesn't mean Register is fully safe yet.
graph.imageMutex.Lock(img.ID)
defer graph.imageMutex.Unlock(img.ID)
defer func() {
// If any error occurs, remove the new dir from the driver.
// Don't check for errors since the dir might not have been created.
// FIXME: this leaves a possible race condition.
if err != nil {
graph.driver.Remove(img.ID)
}
}()
// (This is a convenience to save time. Race conditions are taken care of by os.Rename)
if graph.Exists(img.ID) {
return fmt.Errorf("Image %s already exists", img.ID)
}
// Ensure that the image root does not exist on the filesystem
// when it is not registered in the graph.
// This is common when you switch from one graph driver to another
if err := os.RemoveAll(graph.ImageRoot(img.ID)); err != nil && !os.IsNotExist(err) {
return err
}
// If the driver has this ID but the graph doesn't, remove it from the driver to start fresh.
// (the graph is the source of truth).
// Ignore errors, since we don't know if the driver correctly returns ErrNotExist.
// (FIXME: make that mandatory for drivers).
graph.driver.Remove(img.ID)
tmp, err := graph.Mktemp("")
defer os.RemoveAll(tmp)
if err != nil {
return fmt.Errorf("Mktemp failed: %s", err)
}
// Create root filesystem in the driver
if err := graph.driver.Create(img.ID, img.Parent); err != nil {
return fmt.Errorf("Driver %s failed to create image rootfs %s: %s", graph.driver, img.ID, err)
}
// Apply the diff/layer
img.SetGraph(graph)
if err := image.StoreImage(img, layerData, tmp); err != nil {
return err
}
// Commit
if err := os.Rename(tmp, graph.ImageRoot(img.ID)); err != nil {
return err
}
graph.idIndex.Add(img.ID)
return nil
}