Ejemplo n.º 1
0
// Mount sets container.BaseFS
// (is it not set coming in? why is it unset?)
func (daemon *Daemon) Mount(container *container.Container) error {
	var layerID layer.ChainID
	if container.ImageID != "" {
		img, err := daemon.imageStore.Get(container.ImageID)
		if err != nil {
			return err
		}
		layerID = img.RootFS.ChainID()
	}
	rwlayer, err := daemon.layerStore.Mount(container.ID, layerID, container.GetMountLabel(), daemon.setupInitLayer)
	if err != nil {
		return err
	}
	dir, err := rwlayer.Path()
	if err != nil {
		return err
	}
	logrus.Debugf("container mounted via layerStore: %v", dir)

	if container.BaseFS != dir {
		// The mount path reported by the graph driver should always be trusted on Windows, since the
		// volume path for a given mounted layer may change over time.  This should only be an error
		// on non-Windows operating systems.
		if container.BaseFS != "" && runtime.GOOS != "windows" {
			daemon.Unmount(container)
			return fmt.Errorf("Error: driver %s is returning inconsistent paths for container %s ('%s' then '%s')",
				daemon.driver, container.ID, container.BaseFS, dir)
		}
	}
	container.BaseFS = dir // TODO: combine these fields
	container.RWLayer = rwlayer
	return nil
}
Ejemplo n.º 2
0
// Mount sets container.BaseFS
// (is it not set coming in? why is it unset?)
func (daemon *Daemon) Mount(container *container.Container) error {
	dir, err := container.RWLayer.Mount(container.GetMountLabel())
	if err != nil {
		return err
	}
	logrus.Debugf("container mounted via layerStore: %v", dir)

	if container.BaseFS != dir {
		// The mount path reported by the graph driver should always be trusted on Windows, since the
		// volume path for a given mounted layer may change over time.  This should only be an error
		// on non-Windows operating systems.
		if container.BaseFS != "" && runtime.GOOS != "windows" {
			daemon.Unmount(container)
			return fmt.Errorf("Error: driver %s is returning inconsistent paths for container %s ('%s' then '%s')",
				daemon.GraphDriverName(), container.ID, container.BaseFS, dir)
		}
	}
	container.BaseFS = dir // TODO: combine these fields
	return nil
}