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Merge pull request #15708 from Microsoft/sjw/graphdriver_missing_parent

Windows: Graphdriver should reject create of layer w/o parent
This commit is contained in:
Jessie Frazelle 2015-08-21 16:34:03 -07:00
commit 90801ab939

View file

@ -137,25 +137,16 @@ func (d *Driver) Create(id, parent string) error {
}
}
if _, err := os.Lstat(d.dir(parent)); err == nil {
if _, err := os.Lstat(d.dir(parent)); err != nil {
if err2 := hcsshim.DestroyLayer(d.info, id); err2 != nil {
logrus.Warnf("Failed to DestroyLayer %s: %s", id, err2)
}
return fmt.Errorf("Cannot create layer with missing parent %s: %s", parent, err)
}
if err := d.setLayerChain(id, layerChain); err != nil {
if err2 := hcsshim.DestroyLayer(d.info, id); err2 != nil {
logrus.Warnf("Failed to DestroyLayer %s: %s", id, err)
}
return err
}
} else if os.IsNotExist(err) {
// If the parent doesn't exist, this must be a special creation for an image
// registered at an alternate location. Use the parent id as the alternate ID.
if err := d.setId(id, parent); err != nil {
if err2 := hcsshim.DestroyLayer(d.info, id); err2 != nil {
logrus.Warnf("Failed to DestroyLayer %s: %s", id, err)
}
return err
}
} else {
if err2 := hcsshim.DestroyLayer(d.info, id); err2 != nil {
logrus.Warnf("Failed to DestroyLayer %s: %s", id, err)
logrus.Warnf("Failed to DestroyLayer %s: %s", id, err2)
}
return err
}