Example #1
0
// Create prepares the dataset and filesystem for the ZFS driver for the given id under the parent.
func (d *Driver) Create(id string, parent string, mountLabel string, storageOpt map[string]string) error {
	if len(storageOpt) != 0 {
		return fmt.Errorf("--storage-opt is not supported for zfs")
	}

	err := d.create(id, parent)
	if err == nil {
		return nil
	}
	if zfsError, ok := err.(*zfs.Error); ok {
		if !strings.HasSuffix(zfsError.Stderr, "dataset already exists\n") {
			return err
		}
		// aborted build -> cleanup
	} else {
		return err
	}

	dataset := zfs.Dataset{Name: d.zfsPath(id)}
	if err := dataset.Destroy(zfs.DestroyRecursiveClones); err != nil {
		return err
	}

	// retry
	return d.create(id, parent)
}
Example #2
0
File: zfs.go Project: harche/docker
// Create prepares the dataset and filesystem for the ZFS driver for the given id under the parent.
func (d *Driver) Create(id, parent string, opts *graphdriver.CreateOpts) error {
	var storageOpt map[string]string
	if opts != nil {
		storageOpt = opts.StorageOpt
	}

	err := d.create(id, parent, storageOpt)
	if err == nil {
		return nil
	}
	if zfsError, ok := err.(*zfs.Error); ok {
		if !strings.HasSuffix(zfsError.Stderr, "dataset already exists\n") {
			return err
		}
		// aborted build -> cleanup
	} else {
		return err
	}

	dataset := zfs.Dataset{Name: d.zfsPath(id)}
	if err := dataset.Destroy(zfs.DestroyRecursiveClones); err != nil {
		return err
	}

	// retry
	return d.create(id, parent, storageOpt)
}
Example #3
0
// Remove deletes the dataset, filesystem and the cache for the given id.
func (d *Driver) Remove(id string) error {
	name := d.zfsPath(id)
	dataset := zfs.Dataset{Name: name}
	err := dataset.Destroy(zfs.DestroyRecursive)
	if err == nil {
		d.Lock()
		delete(d.filesystemsCache, name)
		d.Unlock()
	}
	return err
}
Example #4
0
func (d *Driver) cloneFilesystem(name, parentName string) error {
	snapshotName := fmt.Sprintf("%d", time.Now().Nanosecond())
	parentDataset := zfs.Dataset{Name: parentName}
	snapshot, err := parentDataset.Snapshot(snapshotName /*recursive */, false)
	if err != nil {
		return err
	}

	_, err = snapshot.Clone(name, map[string]string{"mountpoint": "legacy"})
	if err == nil {
		d.Lock()
		d.filesystemsCache[name] = true
		d.Unlock()
	}

	if err != nil {
		snapshot.Destroy(zfs.DestroyDeferDeletion)
		return err
	}
	return snapshot.Destroy(zfs.DestroyDeferDeletion)
}
Example #5
0
// Create prepares the dataset and filesystem for the ZFS driver for the given id under the parent.
func (d *Driver) Create(id string, parent string) error {
	err := d.create(id, parent)
	if err == nil {
		return nil
	}
	if zfsError, ok := err.(*zfs.Error); ok {
		if !strings.HasSuffix(zfsError.Stderr, "dataset already exists\n") {
			return err
		}
		// aborted build -> cleanup
	} else {
		return err
	}

	dataset := zfs.Dataset{Name: d.ZfsPath(id)}
	if err := dataset.Destroy(zfs.DestroyRecursiveClones); err != nil {
		return err
	}

	// retry
	return d.create(id, parent)
}