Ignore errorcode=4 when executing cryptsetup remove
command
If an attached encrypted volume is failed to detach from the instance when deleting that instance, user can not delete that instance at all. This patch adds 4 in check_exit_code when executing `cryptsetup remove` command to eat that exception. PS: exit_code = 4 indicate ENODEV error which means no device(also includes the crypt device inactive). Closes-Bug: #1482066 Change-Id: I12e2a52068850528a4bd68486344b74eb9b82c88
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@ -78,7 +78,7 @@ class CryptsetupEncryptorTestCase(test_base.VolumeEncryptorTestCase):
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mock_execute.assert_has_calls([
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mock.call('cryptsetup', 'remove', self.dev_name,
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run_as_root=True, check_exit_code=True),
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run_as_root=True, check_exit_code=[0, 4]),
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])
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self.assertEqual(1, mock_execute.call_count)
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@ -88,7 +88,7 @@ class CryptsetupEncryptorTestCase(test_base.VolumeEncryptorTestCase):
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mock_execute.assert_has_calls([
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mock.call('cryptsetup', 'remove', self.dev_name,
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run_as_root=True, check_exit_code=True),
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run_as_root=True, check_exit_code=[0, 4]),
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])
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self.assertEqual(1, mock_execute.call_count)
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@ -103,8 +103,11 @@ class CryptsetupEncryptor(base.VolumeEncryptor):
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def _close_volume(self, **kwargs):
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"""Closes the device (effectively removes the dm-crypt mapping)."""
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LOG.debug("closing encrypted volume %s", self.dev_path)
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# cryptsetup returns 4 when attempting to destroy a non-active
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# dm-crypt device. We are going to ignore this error code to make
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# nova deleting that instance successfully.
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utils.execute('cryptsetup', 'remove', self.dev_name,
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run_as_root=True, check_exit_code=True)
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run_as_root=True, check_exit_code=[0, 4])
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def detach_volume(self, **kwargs):
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"""Removes the dm-crypt mapping for the device."""
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