def test_deleted_subvolumes(self):
subvol = os.path.join(self.mountpoint, 'subvol')
btrfsutil.create_subvolume(subvol + '1')
btrfsutil.delete_subvolume(subvol + '1')
for arg in self.path_or_fd(self.mountpoint):
with self.subTest(type=type(arg)):
self.assertEqual(btrfsutil.deleted_subvolumes(arg), [256])
def test_deleted_subvolumes(self):
subvol = os.path.join(self.mountpoint, 'subvol')
btrfsutil.create_subvolume(subvol + '1')
btrfsutil.delete_subvolume(subvol + '1')
for arg in self.path_or_fd(self.mountpoint):
with self.subTest(type=type(arg)):
self.assertEqual(btrfsutil.deleted_subvolumes(arg), [256])
def delete_snapshot(self, snapshot: Subvolume) -> None:
logger = self._logger
filesystem_path = snapshot.filesystem_path
logical_path = snapshot.logical_path
try:
filesystem_path_str = str(filesystem_path)
is_subvolume = filesystem_path.exists() and btrfsutil.is_subvolume(
filesystem_path_str)
if is_subvolume:
root_dir_str = str(constants.ROOT_DIR)
num_id = snapshot.num_id
deleted_subvolumes = checked_cast(
list[int], btrfsutil.deleted_subvolumes(root_dir_str))
if num_id not in deleted_subvolumes:
logger.info(f"Deleting the '{logical_path}' snapshot.")
btrfsutil.delete_subvolume(filesystem_path_str)
else:
logger.warning(
f"The '{logical_path}' snapshot has already "
"been deleted but not yet cleaned up.")
else:
logger.warning(
f"The '{filesystem_path}' directory is not a subvolume.")
except btrfsutil.BtrfsUtilError as e:
logger.exception("btrfsutil call failed!")
raise SubvolumeError(
f"Could not delete the '{logical_path}' snapshot!") from e
def _create_and_delete_subvolume(i):
dir_name = f'dir{i}'
subvol_name = dir_name + '/subvol'
while True:
os.mkdir(dir_name)
btrfsutil.create_subvolume(subvol_name)
btrfsutil.delete_subvolume(subvol_name)
os.rmdir(dir_name)
def purge_old_snapshots(directory: Path, keep: int):
if keep < 1:
raise globalstuff.Bug('Argument "keep" must be an integer >= 1')
snapshots = snapshotkit2.snapshot_dict(
snapshotkit2.scan_dir(directory, bnames.filter), bnames.parse_path)
keys = list(snapshots)
if len(keys) > keep:
keys.sort(reverse=True)
for r in range(keep):
logger.debug(f'Keeping subvolume "{str(snapshots[keys[r]])}"')
del snapshots[keys[r]]
for v in snapshots.values():
logger.debug(f'Deleting subvolume "{str(v)}"')
btrfsutil.delete_subvolume(v)
def mocker_rmi(uuid1):
'''+
rmi <image_id> - удаляет
ранее созданный образ из локального хранилища.
'''
if uuid1[0:4] == "img_":
if mocker_check(uuid1) == 1:
print('No image named ' + str(uuid1))
return
btrfsutil.delete_subvolume(btrfs_path + '/' + str(uuid1))
cg = Cgroup(uuid1)
cg.delete()
print('Removed ' + str(uuid1))
else:
print('This is not image')
def mocker_rm(uuid1):
'''+
rm <container_id> - удаляет ранее
созданный контейнер
'''
if uuid1[0:3] == "ps_":
if mocker_check(uuid1) == 1:
print('No container named ' + str(uuid1))
return
btrfsutil.delete_subvolume(btrfs_path + '/' + str(uuid1))
cg = Cgroup(uuid1)
cg.delete()
netns_name = 'netns_' + str(uuid1)
netns.remove(netns_name)
print('Removed ' + str(uuid1))
else:
print('This is not container')
def mocker_rmi(uuid1):
'''+
rmi <image_id> - удаляет
ранее созданный образ из локального хранилища.
'''
'''
[[ "$(bocker_check "$1")" == 1 ]] && echo "No container named '$1' exists" && exit 1
btrfs subvolume delete "$btrfs_path/$1" > /dev/null
cgdelete -g "$cgroups:/$1" &> /dev/null || true
echo "Removed: $1"
'''
if mocker_check(uuid1) == 1:
print('No container named ' + str(uuid1))
return
btrfsutil.delete_subvolume(btrfs_path + '/' + str(uuid1))
cg = Cgroup(uuid1)
cg.remove(uuid1)
print('Removed ' + str(uuid1))
# Cgroup.remove(uuid)
pass
def test_delete_subvolume(self):
subvol = os.path.join(self.mountpoint, 'subvol')
btrfsutil.create_subvolume(subvol + '1')
self.assertTrue(os.path.exists(subvol + '1'))
btrfsutil.create_subvolume(subvol + '2')
self.assertTrue(os.path.exists(subvol + '2'))
btrfsutil.create_subvolume(subvol + '3')
self.assertTrue(os.path.exists(subvol + '3'))
btrfsutil.delete_subvolume(subvol + '1')
self.assertFalse(os.path.exists(subvol + '1'))
btrfsutil.delete_subvolume((subvol + '2').encode())
self.assertFalse(os.path.exists(subvol + '2'))
if HAVE_PATH_LIKE:
btrfsutil.delete_subvolume(PurePath(subvol + '3'))
self.assertFalse(os.path.exists(subvol + '3'))
# Test deleting subvolumes under '/' in a chroot.
pid = os.fork()
if pid == 0:
try:
os.chroot(self.mountpoint)
os.chdir('/')
btrfsutil.create_subvolume('/subvol4')
self.assertTrue(os.path.exists('/subvol4'))
btrfsutil.delete_subvolume('/subvol4')
self.assertFalse(os.path.exists('/subvol4'))
with self.assertRaises(btrfsutil.BtrfsUtilError):
btrfsutil.delete_subvolume('/')
os._exit(0)
except Exception:
traceback.print_exc()
os._exit(1)
wstatus = os.waitpid(pid, 0)[1]
self.assertTrue(os.WIFEXITED(wstatus))
self.assertEqual(os.WEXITSTATUS(wstatus), 0)
btrfsutil.create_subvolume(subvol + '5')
btrfsutil.create_subvolume(subvol + '5/foo')
btrfsutil.create_subvolume(subvol + '5/bar')
btrfsutil.create_subvolume(subvol + '5/bar/baz')
btrfsutil.create_subvolume(subvol + '5/bar/qux')
btrfsutil.create_subvolume(subvol + '5/quux')
with self.assertRaises(btrfsutil.BtrfsUtilError):
btrfsutil.delete_subvolume(subvol + '5')
btrfsutil.delete_subvolume(subvol + '5', recursive=True)
self.assertFalse(os.path.exists(subvol + '5'))
def test_delete_subvolume(self):
subvol = os.path.join(self.mountpoint, 'subvol')
btrfsutil.create_subvolume(subvol + '1')
self.assertTrue(os.path.exists(subvol + '1'))
btrfsutil.create_subvolume(subvol + '2')
self.assertTrue(os.path.exists(subvol + '2'))
btrfsutil.create_subvolume(subvol + '3')
self.assertTrue(os.path.exists(subvol + '3'))
btrfsutil.delete_subvolume(subvol + '1')
self.assertFalse(os.path.exists(subvol + '1'))
btrfsutil.delete_subvolume((subvol + '2').encode())
self.assertFalse(os.path.exists(subvol + '2'))
if HAVE_PATH_LIKE:
btrfsutil.delete_subvolume(PurePath(subvol + '3'))
self.assertFalse(os.path.exists(subvol + '3'))
# Test deleting subvolumes under '/' in a chroot.
pid = os.fork()
if pid == 0:
try:
os.chroot(self.mountpoint)
os.chdir('/')
btrfsutil.create_subvolume('/subvol4')
self.assertTrue(os.path.exists('/subvol4'))
btrfsutil.delete_subvolume('/subvol4')
self.assertFalse(os.path.exists('/subvol4'))
with self.assertRaises(btrfsutil.BtrfsUtilError):
btrfsutil.delete_subvolume('/')
os._exit(0)
except Exception:
traceback.print_exc()
os._exit(1)
wstatus = os.waitpid(pid, 0)[1]
self.assertTrue(os.WIFEXITED(wstatus))
self.assertEqual(os.WEXITSTATUS(wstatus), 0)
btrfsutil.create_subvolume(subvol + '5')
btrfsutil.create_subvolume(subvol + '5/foo')
btrfsutil.create_subvolume(subvol + '5/bar')
btrfsutil.create_subvolume(subvol + '5/bar/baz')
btrfsutil.create_subvolume(subvol + '5/bar/qux')
btrfsutil.create_subvolume(subvol + '5/quux')
with self.assertRaises(btrfsutil.BtrfsUtilError):
btrfsutil.delete_subvolume(subvol + '5')
btrfsutil.delete_subvolume(subvol + '5', recursive=True)
self.assertFalse(os.path.exists(subvol + '5'))
def rollback(self):
for v in self._snapshots.values():
btrfsutil.delete_subvolume(v)
logger.debug('Rollback: Removed snapshot "%s"', v)
self._state = State.UNDONE
def delete(volume):
if not volume.exists():
raise VolumeNotFoundError(volume.name())
btfrs.delete_subvolume(str(volume.path()))
print('Deleted: ' + volume.name())
