openstack/os-brick
Code Issues Proposed changes

Merge "Make close on luks volumes idempotent"

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This commit is contained in:
Zuul 2017-11-21 16:22:25 +00:00 committed by Gerrit Code Review
commit 5fb632f96a
2 changed files with 10 additions and 5 deletions
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7
os_brick/encryptors/luks.py
View File

@ -181,7 +181,12 @@ class LuksEncryptor(cryptsetup.CryptsetupEncryptor):
def _close_volume(self, **kwargs):
"""Closes the device (effectively removes the dm-crypt mapping)."""
LOG.debug("closing encrypted volume %s", self.dev_path)
# NOTE(mdbooth): luksClose will return 4 (wrong device specified) if
# the device doesn't exist. We assume here that the caller hasn't
# specified the wrong device, and that it doesn't exist because it
# isn't open. We don't fail in this case in order to make this
# operation idempotent.
self._execute('cryptsetup', 'luksClose', self.dev_name,
run_as_root=True, check_exit_code=True,
run_as_root=True, check_exit_code=[0, 4],
root_helper=self._root_helper,
attempts=3)

8
os_brick/tests/encryptors/test_luks.py
View File

@ -169,7 +169,7 @@ class LuksEncryptorTestCase(test_cryptsetup.CryptsetupEncryptorTestCase):
mock_execute.assert_has_calls([
mock.call('cryptsetup', 'luksClose', self.dev_name,
root_helper=self.root_helper,
attempts=3, run_as_root=True, check_exit_code=True),
attempts=3, run_as_root=True, check_exit_code=[0, 4]),
])
@mock.patch('os_brick.executor.Executor._execute')
@ -179,7 +179,7 @@ class LuksEncryptorTestCase(test_cryptsetup.CryptsetupEncryptorTestCase):
mock_execute.assert_has_calls([
mock.call('cryptsetup', 'luksClose', self.dev_name,
root_helper=self.root_helper,
attempts=3, run_as_root=True, check_exit_code=True),
attempts=3, run_as_root=True, check_exit_code=[0, 4]),
])
def test_get_mangled_passphrase(self):
@ -224,7 +224,7 @@ class LuksEncryptorTestCase(test_cryptsetup.CryptsetupEncryptorTestCase):
check_exit_code=True),
mock.call('cryptsetup', 'luksClose', self.dev_name,
root_helper=self.root_helper, run_as_root=True,
check_exit_code=True, attempts=3),
check_exit_code=[0, 4], attempts=3),
mock.call('cryptsetup', 'luksAddKey', self.dev_path,
process_input=''.join([fake_key_mangled,
'\n', fake_key,
@ -237,7 +237,7 @@ class LuksEncryptorTestCase(test_cryptsetup.CryptsetupEncryptorTestCase):
check_exit_code=True),
mock.call('cryptsetup', 'luksClose', self.dev_name,
root_helper=self.root_helper, run_as_root=True,
check_exit_code=True, attempts=3),
check_exit_code=[0, 4], attempts=3),
mock.call('cryptsetup', 'luksRemoveKey', self.dev_path,
process_input=fake_key_mangled,
root_helper=self.root_helper, run_as_root=True,