488 lines
17 KiB
Python
488 lines
17 KiB
Python
# Copyright 2014, 2015 StorPool
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import re
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import sys
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import mock
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from oslo_utils import units
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fakeStorPool = mock.Mock()
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fakeStorPool.spopenstack = mock.Mock()
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fakeStorPool.spapi = mock.Mock()
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fakeStorPool.spconfig = mock.Mock()
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fakeStorPool.sptypes = mock.Mock()
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sys.modules['storpool'] = fakeStorPool
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from cinder import exception
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from cinder import test
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from cinder.volume import configuration as conf
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from cinder.volume.drivers import storpool as driver
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volume_types = {
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1: {},
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2: {'storpool_template': 'ssd'},
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3: {'storpool_template': 'hdd'}
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}
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volumes = {}
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snapshots = {}
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def MockExtraSpecs(vtype):
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return volume_types[vtype]
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def mock_volume_types(f):
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def _types_inner_inner1(inst, *args, **kwargs):
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@mock.patch('cinder.volume.volume_types.get_volume_type_extra_specs',
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new=MockExtraSpecs)
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def _types_inner_inner2():
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return f(inst, *args, **kwargs)
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return _types_inner_inner2()
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return _types_inner_inner1
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def volumeName(vid):
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return 'os--volume--{id}'.format(id=vid)
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def snapshotName(vtype, vid):
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return 'os--snap--{t}--{id}'.format(t=vtype, id=vid)
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class MockDisk(object):
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def __init__(self, diskId):
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self.id = diskId
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self.generationLeft = -1
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self.agCount = 13
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self.agFree = 12
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self.agAllocated = 1
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class MockVolume(object):
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def __init__(self, v):
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self.name = v['name']
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class MockTemplate(object):
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def __init__(self, name):
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self.name = name
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class MockApiError(Exception):
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def __init__(self, msg):
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super(MockApiError, self).__init__(msg)
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class MockAPI(object):
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def __init__(self):
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self._disks = {diskId: MockDisk(diskId) for diskId in (1, 2, 3, 4)}
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self._disks[3].generationLeft = 42
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self._templates = [MockTemplate(name) for name in ('ssd', 'hdd')]
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def setlog(self, log):
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self._log = log
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def disksList(self):
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return self._disks
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def snapshotCreate(self, vname, snap):
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snapshots[snap['name']] = dict(volumes[vname])
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def snapshotDelete(self, name):
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del snapshots[name]
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def volumeCreate(self, v):
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if v['name'] in volumes:
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raise MockApiError('volume already exists')
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volumes[v['name']] = v
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def volumeDelete(self, name):
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del volumes[name]
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def volumesList(self):
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return [MockVolume(v[1]) for v in volumes.items()]
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def volumeTemplatesList(self):
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return self._templates
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def volumesReassign(self, json):
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pass
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def volumeUpdate(self, name, data):
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if 'size' in data:
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volumes[name]['size'] = data['size']
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if 'rename' in data and data['rename'] != name:
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volumes[data['rename']] = volumes[name]
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del volumes[name]
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class MockAttachDB(object):
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def __init__(self, log):
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self._api = MockAPI()
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def api(self):
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return self._api
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def volumeName(self, vid):
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return volumeName(vid)
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def snapshotName(self, vtype, vid):
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return snapshotName(vtype, vid)
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def MockVolumeUpdateDesc(size):
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return {'size': size}
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def MockSPConfig(section = 's01'):
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res = {}
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m = re.match('^s0*([A-Za-z0-9]+)$', section)
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if m:
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res['SP_OURID'] = m.group(1)
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return res
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fakeStorPool.spapi.ApiError = MockApiError
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fakeStorPool.spconfig.SPConfig = MockSPConfig
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fakeStorPool.spopenstack.AttachDB = MockAttachDB
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fakeStorPool.sptypes.VolumeUpdateDesc = MockVolumeUpdateDesc
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class StorPoolTestCase(test.TestCase):
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def setUp(self):
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super(StorPoolTestCase, self).setUp()
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self.cfg = mock.Mock(spec=conf.Configuration)
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self.cfg.volume_backend_name = 'storpool_test'
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self.cfg.storpool_template = None
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self.cfg.storpool_replication = 3
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mock_exec = mock.Mock()
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mock_exec.return_value = ('', '')
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self.driver = driver.StorPoolDriver(execute=mock_exec,
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configuration=self.cfg)
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self.driver.check_for_setup_error()
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def test_initialized(self):
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self.assertRaises(TypeError,
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self.driver.validate_connector,
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5)
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self.assertRaises(KeyError,
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self.driver.validate_connector,
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{'no-host': None})
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self.assertRaises(exception.StorPoolConfigurationMissing,
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self.driver.validate_connector,
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{'host': 'none'})
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self.assertRaises(exception.StorPoolConfigurationInvalid,
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self.driver.validate_connector,
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{'host': 'sbad'})
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self.assertTrue(self.driver.validate_connector({'host': 's01'}))
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self.assertRaises(TypeError,
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self.driver.initialize_connection,
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None, 5)
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self.assertRaises(KeyError,
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self.driver.initialize_connection,
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None, {'no-host': None})
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self.assertRaises(exception.StorPoolConfigurationMissing,
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self.driver.initialize_connection,
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None, {'host': 'none'})
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self.assertRaises(exception.StorPoolConfigurationInvalid,
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self.driver.initialize_connection,
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None, {'host': 'sbad'})
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c = self.driver.initialize_connection({'id': '42'}, {'host': 's01'})
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self.assertEqual('storpool', c['driver_volume_type'])
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self.assertDictEqual({'client_id': 1, 'volume': '42'}, c['data'])
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c = self.driver.initialize_connection({'id': '616'}, {'host': 's02'})
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self.assertEqual('storpool', c['driver_volume_type'])
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self.assertDictEqual({'client_id': 2, 'volume': '616'}, c['data'])
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self.driver.terminate_connection(None, None)
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self.driver.create_export(None, None)
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self.driver.remove_export(None, None)
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def test_stats(self):
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stats = self.driver.get_volume_stats(refresh=True)
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self.assertEqual('StorPool', stats['vendor_name'])
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self.assertEqual('storpool', stats['storage_protocol'])
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self.assertListEqual(['default', 'template_hdd', 'template_ssd'],
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sorted([p['pool_name'] for p in stats['pools']]))
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r = re.compile('^template_([A-Za-z0-9_]+)$')
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for pool in stats['pools']:
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self.assertEqual(19, pool['total_capacity_gb'])
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self.assertEqual(5, pool['free_capacity_gb'])
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if pool['pool_name'] != 'default':
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m = r.match(pool['pool_name'])
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self.assertIsNotNone(m)
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self.assertIsNotNone(m.group(1))
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self.assertEqual(m.group(1), pool['storpool_template'])
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def assertVolumeNames(self, names):
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self.assertListEqual(sorted([volumeName(n) for n in names]),
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sorted(volumes.keys()))
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@mock_volume_types
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def test_create_delete_volume(self):
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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self.driver.create_volume({'id': '1', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertListEqual([volumeName('1')], volumes.keys())
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self.assertVolumeNames(('1',))
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v = volumes[volumeName('1')]
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self.assertEqual(1 * units.Gi, v['size'])
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self.assertNotIn('template', v.keys())
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self.assertEqual(3, v['replication'])
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caught = False
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try:
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self.driver.create_volume({'id': '1', 'name': 'v1', 'size': 0,
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'volume_type': None})
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except exception.VolumeBackendAPIException:
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caught = True
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self.assertTrue(caught)
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self.driver.delete_volume({'id': '1'})
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.driver.create_volume({'id': '1', 'name': 'v1', 'size': 2,
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'volume_type': None})
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self.assertVolumeNames(('1',))
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v = volumes[volumeName('1')]
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self.assertEqual(2 * units.Gi, v['size'])
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self.assertNotIn('template', v.keys())
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self.assertEqual(3, v['replication'])
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self.driver.create_volume({'id': '2', 'name': 'v2', 'size': 3,
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'volume_type': {'id': 1}})
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self.assertVolumeNames(('1', '2'))
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v = volumes[volumeName('2')]
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self.assertEqual(3 * units.Gi, v['size'])
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self.assertNotIn('template', v.keys())
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self.assertEqual(3, v['replication'])
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self.driver.create_volume({'id': '3', 'name': 'v2', 'size': 4,
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'volume_type': {'id': 2}})
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self.assertVolumeNames(('1', '2', '3'))
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v = volumes[volumeName('3')]
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self.assertEqual(4 * units.Gi, v['size'])
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self.assertEqual('ssd', v['template'])
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self.assertNotIn('replication', v.keys())
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self.driver.create_volume({'id': '4', 'name': 'v2', 'size': 5,
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'volume_type': {'id': 3}})
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self.assertVolumeNames(('1', '2', '3', '4'))
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v = volumes[volumeName('4')]
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self.assertEqual(5 * units.Gi, v['size'])
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self.assertEqual('hdd', v['template'])
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self.assertNotIn('replication', v.keys())
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# Make sure the dictionary is not corrupted somehow...
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v = volumes[volumeName('1')]
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self.assertEqual(2 * units.Gi, v['size'])
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self.assertNotIn('template', v.keys())
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self.assertEqual(3, v['replication'])
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for vid in ('1', '2', '3', '4'):
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self.driver.delete_volume({'id': vid})
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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@mock_volume_types
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def test_update_migrated_volume(self):
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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# Create two volumes
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self.driver.create_volume({'id': '1', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.driver.create_volume({'id': '2', 'name': 'v2', 'size': 1,
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'volume_type': None})
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self.assertListEqual([volumeName('1'), volumeName('2')],
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volumes.keys())
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self.assertVolumeNames(('1', '2',))
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# Failure: the "migrated" volume does not even exist
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res = self.driver.update_migrated_volume(None, {'id': '1'},
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{'id': '3', '_name_id': '1'},
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'available')
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self.assertDictEqual({'_name_id': '1'}, res)
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# Failure: a volume with the original volume's name already exists
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res = self.driver.update_migrated_volume(None, {'id': '1'},
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{'id': '2', '_name_id': '1'},
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'available')
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self.assertDictEqual({'_name_id': '1'}, res)
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# Success: rename the migrated volume to match the original
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res = self.driver.update_migrated_volume(None, {'id': '3'},
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{'id': '2', '_name_id': '3'},
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'available')
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self.assertDictEqual({'_name_id': None}, res)
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self.assertListEqual([volumeName('1'), volumeName('3')],
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volumes.keys())
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self.assertVolumeNames(('1', '3',))
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for vid in ('1', '3'):
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self.driver.delete_volume({'id': vid})
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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def test_clone_extend_volume(self):
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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self.driver.create_volume({'id': '1', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertVolumeNames(('1',))
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self.driver.extend_volume({'id': '1'}, 2)
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self.assertEqual(2 * units.Gi, volumes[volumeName('1')]['size'])
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self.driver.create_cloned_volume({'id': '2', 'name': 'clo', 'size': 3},
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{'id': 1})
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self.assertVolumeNames(('1', '2'))
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self.assertDictEqual({}, snapshots)
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# Note: this would not be true in a real environment (the snapshot will
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# have been deleted, the volume would have no parent), but with this
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# fake implementation it helps us make sure that the second volume was
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# created with the proper options.
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self.assertEqual(volumes[volumeName('2')]['parent'],
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snapshotName('clone', '2'))
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self.driver.delete_volume({'id': 1})
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self.driver.delete_volume({'id': 2})
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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@mock_volume_types
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def test_config_replication(self):
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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save_repl = self.driver.configuration.storpool_replication
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self.driver.configuration.storpool_replication = 3
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stats = self.driver.get_volume_stats(refresh=True)
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pool = stats['pools'][0]
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self.assertEqual(19, pool['total_capacity_gb'])
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self.assertEqual(5, pool['free_capacity_gb'])
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self.driver.create_volume({'id': 'cfgrepl1', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertVolumeNames(('cfgrepl1',))
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v = volumes[volumeName('cfgrepl1')]
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self.assertEqual(3, v['replication'])
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self.assertNotIn('template', v)
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self.driver.delete_volume({'id': 'cfgrepl1'})
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self.driver.configuration.storpool_replication = 2
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stats = self.driver.get_volume_stats(refresh=True)
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pool = stats['pools'][0]
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self.assertEqual(19, pool['total_capacity_gb'])
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self.assertEqual(8, pool['free_capacity_gb'])
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self.driver.create_volume({'id': 'cfgrepl2', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertVolumeNames(('cfgrepl2',))
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v = volumes[volumeName('cfgrepl2')]
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self.assertEqual(2, v['replication'])
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self.assertNotIn('template', v)
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self.driver.delete_volume({'id': 'cfgrepl2'})
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self.driver.create_volume({'id': 'cfgrepl3', 'name': 'v1', 'size': 1,
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'volume_type': {'id': 2}})
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self.assertVolumeNames(('cfgrepl3',))
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v = volumes[volumeName('cfgrepl3')]
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self.assertNotIn('replication', v)
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self.assertEqual('ssd', v['template'])
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self.driver.delete_volume({'id': 'cfgrepl3'})
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self.driver.configuration.storpool_replication = save_repl
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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@mock_volume_types
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def test_config_template(self):
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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save_template = self.driver.configuration.storpool_template
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self.driver.configuration.storpool_template = None
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self.driver.create_volume({'id': 'cfgtempl1', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertVolumeNames(('cfgtempl1',))
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v = volumes[volumeName('cfgtempl1')]
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self.assertEqual(3, v['replication'])
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self.assertNotIn('template', v)
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self.driver.delete_volume({'id': 'cfgtempl1'})
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self.driver.create_volume({'id': 'cfgtempl2', 'name': 'v1', 'size': 1,
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'volume_type': {'id': 2}})
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self.assertVolumeNames(('cfgtempl2',))
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v = volumes[volumeName('cfgtempl2')]
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self.assertNotIn('replication', v)
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self.assertEqual('ssd', v['template'])
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self.driver.delete_volume({'id': 'cfgtempl2'})
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self.driver.configuration.storpool_template = 'hdd'
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self.driver.create_volume({'id': 'cfgtempl3', 'name': 'v1', 'size': 1,
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'volume_type': None})
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self.assertVolumeNames(('cfgtempl3',))
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v = volumes[volumeName('cfgtempl3')]
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self.assertNotIn('replication', v)
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self.assertEqual('hdd', v['template'])
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self.driver.delete_volume({'id': 'cfgtempl3'})
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self.driver.create_volume({'id': 'cfgtempl4', 'name': 'v1', 'size': 1,
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'volume_type': {'id': 2}})
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self.assertVolumeNames(('cfgtempl4',))
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v = volumes[volumeName('cfgtempl4')]
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self.assertNotIn('replication', v)
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self.assertEqual('ssd', v['template'])
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self.driver.delete_volume({'id': 'cfgtempl4'})
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self.driver.configuration.storpool_template = save_template
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self.assertVolumeNames([])
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self.assertDictEqual({}, volumes)
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self.assertDictEqual({}, snapshots)
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