def test_011_migration2(self):
'''VM started with old code, stopped with new'''
config = {
'name': 'root',
'pool': self.pool.name,
'save_on_stop': True,
'rw': True,
'revisions_to_keep': 1,
'size': qubes.config.defaults['root_img_size'],
}
vm = qubes.tests.storage.TestVM(self)
volume = self.app.get_pool(self.pool.name).init_volume(vm, config)
# mock logging, to not interfere with time.time() mock
volume.log = unittest.mock.Mock()
# do not call volume.create(), do it manually to have old LV naming
revisions = ['', '-snap']
orig_uuids = {}
for rev in revisions:
cmd = [
'create', self.pool._pool_id,
volume.vid.split('/')[1] + rev,
str(config['size'])
]
qubes_lvm(cmd)
orig_uuids[rev] = self._get_lv_uuid(volume.vid + rev)
qubes.storage.lvm.reset_cache()
path_snap = '/dev/' + volume._vid_snap
self.assertTrue(os.path.exists(path_snap), path_snap)
expected_revisions = {}
self.assertEqual(volume.revisions, expected_revisions)
self.assertEqual(volume.path, '/dev/' + volume.vid)
self.assertTrue(volume.is_dirty())
path = volume.path
self.assertEqual(path, '/dev/' + volume.vid)
self.assertTrue(os.path.exists(path), path)
with unittest.mock.patch('time.time') as mock_time:
mock_time.side_effect = ('1521065906', '1521065907')
self.loop.run_until_complete(volume.stop())
revisions.extend(['-1521065906-back'])
expected_revisions = {
revisions[2].lstrip('-'): '2018-03-14T22:18:26',
}
self.assertEqual(volume.revisions, expected_revisions)
self.assertEqual(volume.path, '/dev/' + volume.vid)
path_snap = '/dev/' + volume._vid_snap
self.assertFalse(os.path.exists(path_snap), path_snap)
self.assertTrue(os.path.exists('/dev/' + volume.vid))
self.assertEqual(self._get_lv_uuid(volume.path), orig_uuids['-snap'])
prev_path = '/dev/' + volume.vid + revisions[2]
self.assertEqual(self._get_lv_uuid(prev_path), orig_uuids[''])
self.loop.run_until_complete(volume.remove())
for rev in revisions:
path = '/dev/' + volume.vid + rev
self.assertFalse(os.path.exists(path), path)
def test_009_interrupted_commit(self):
''' Test volume changes commit'''
config = {
'name': 'root',
'pool': self.pool.name,
'save_on_stop': True,
'rw': True,
'revisions_to_keep': 2,
'size': qubes.config.defaults['root_img_size'],
}
vm = qubes.tests.storage.TestVM(self)
volume = self.app.get_pool(self.pool.name).init_volume(vm, config)
# mock logging, to not interfere with time.time() mock
volume.log = unittest.mock.Mock()
# do not call volume.create(), do it manually to simulate
# interrupted commit
revisions = ['-1521065904-back', '-1521065905-back', '-snap']
orig_uuids = {}
for rev in revisions:
cmd = [
'create', self.pool._pool_id,
volume.vid.split('/')[1] + rev,
str(config['size'])
]
qubes_lvm(cmd)
orig_uuids[rev] = self._get_lv_uuid(volume.vid + rev)
qubes.storage.lvm.reset_cache()
path_snap = '/dev/' + volume._vid_snap
self.assertTrue(volume.is_dirty())
self.assertEqual(volume.path, '/dev/' + volume.vid + revisions[1])
expected_revisions = {
revisions[0].lstrip('-'): '2018-03-14T22:18:24',
revisions[1].lstrip('-'): '2018-03-14T22:18:25',
}
self.assertEqual(volume.revisions, expected_revisions)
self.loop.run_until_complete(volume.start())
self.assertEqual(volume.revisions, expected_revisions)
snap_uuid = self._get_lv_uuid(path_snap)
self.assertEqual(orig_uuids['-snap'], snap_uuid)
self.assertTrue(volume.is_dirty())
self.assertEqual(volume.path, '/dev/' + volume.vid + revisions[1])
with unittest.mock.patch('time.time') as mock_time:
mock_time.side_effect = [521065906]
self.loop.run_until_complete(volume.stop())
expected_revisions = {
revisions[0].lstrip('-'): '2018-03-14T22:18:24',
revisions[1].lstrip('-'): '2018-03-14T22:18:25',
}
self.assertFalse(volume.is_dirty())
self.assertEqual(volume.revisions, expected_revisions)
self.assertEqual(volume.path, '/dev/' + volume.vid)
self.assertEqual(snap_uuid, self._get_lv_uuid(volume.path))
self.assertFalse(os.path.exists(path_snap), path_snap)
self.loop.run_until_complete(volume.remove())
def test_012_migration3(self):
'''VM started with old code, started again with new, stopped with new'''
config = {
'name': 'root',
'pool': self.pool.name,
'save_on_stop': True,
'rw': True,
'revisions_to_keep': 1,
'size': qubes.config.defaults['root_img_size'],
}
vm = qubes.tests.storage.TestVM(self)
volume = self.app.get_pool(self.pool.name).init_volume(vm, config)
# mock logging, to not interfere with time.time() mock
volume.log = unittest.mock.Mock()
# do not call volume.create(), do it manually to have old LV naming
revisions = ['', '-snap']
orig_uuids = {}
for rev in revisions:
cmd = [
'create', self.pool._pool_id,
volume.vid.split('/')[1] + rev,
str(config['size'])
]
qubes_lvm(cmd)
orig_uuids[rev] = self._get_lv_uuid(volume.vid + rev)
qubes.storage.lvm.reset_cache()
path_snap = '/dev/' + volume._vid_snap
self.assertTrue(os.path.exists(path_snap), path_snap)
expected_revisions = {}
self.assertEqual(volume.revisions, expected_revisions)
self.assertTrue(volume.path, '/dev/' + volume.vid)
self.assertTrue(volume.is_dirty())
self.loop.run_until_complete(volume.start())
self.assertEqual(volume.revisions, expected_revisions)
self.assertEqual(volume.path, '/dev/' + volume.vid)
# -snap LV should be unchanged
self.assertEqual(self._get_lv_uuid(volume._vid_snap),
orig_uuids['-snap'])
self.loop.run_until_complete(volume.remove())
for rev in revisions:
path = '/dev/' + volume.vid + rev
self.assertFalse(os.path.exists(path), path)
