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Windows: Don't attempt detach VHD for R/O layers

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Signed-off-by: John Howard <jhoward@microsoft.com>
(cherry picked from commit 293c74ba79)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
John Howard 2019-06-04 13:38:52 -07:00 committed by Sebastiaan van Stijn
parent 5fbc0a16e2
commit 31722d3f5a
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GPG key ID: 76698F39D527CE8C
1 changed files with 8 additions and 5 deletions
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13
daemon/graphdriver/windows/windows.go
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@ -338,11 +338,14 @@ func (d *Driver) Remove(id string) error {
// If permission denied, it's possible that the scratch is still mounted, an
// artifact after a hard daemon crash for example. Worth a shot to try detaching it
// before retrying the rename.
if detachErr := vhd.DetachVhd(filepath.Join(layerPath, "sandbox.vhdx")); detachErr != nil {
return errors.Wrapf(err, "failed to detach VHD: %s", detachErr)
}
if renameErr := os.Rename(layerPath, tmpLayerPath); renameErr != nil && !os.IsNotExist(renameErr) {
return errors.Wrapf(err, "second rename attempt following detach failed: %s", renameErr)
sandbox := filepath.Join(layerPath, "sandbox.vhdx")
if _, statErr := os.Stat(sandbox); statErr == nil {
if detachErr := vhd.DetachVhd(sandbox); detachErr != nil {
return errors.Wrapf(err, "failed to detach VHD: %s", detachErr)
}
if renameErr := os.Rename(layerPath, tmpLayerPath); renameErr != nil && !os.IsNotExist(renameErr) {
return errors.Wrapf(err, "second rename attempt following detach failed: %s", renameErr)
}
}
}
if err := hcsshim.DestroyLayer(d.info, tmpID); err != nil {