354 lines
14 KiB
Python
354 lines
14 KiB
Python
# Copyright 2012 OpenStack Foundation
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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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from mox3 import mox
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from oslo_concurrency import processutils
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from cinder.brick.local_dev import lvm as brick
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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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def create_configuration():
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configuration = mox.MockObject(conf.Configuration)
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configuration.append_config_values(mox.IgnoreArg())
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return configuration
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class BrickLvmTestCase(test.TestCase):
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def setUp(self):
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self.configuration = mox.MockObject(conf.Configuration)
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self.configuration.volume_group_name = 'fake-vg'
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super(BrickLvmTestCase, self).setUp()
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# Stub processutils.execute for static methods
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self.stubs.Set(processutils, 'execute',
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self.fake_execute)
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self.vg = brick.LVM(self.configuration.volume_group_name,
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'sudo',
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False, None,
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'default',
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self.fake_execute)
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def failed_fake_execute(obj, *cmd, **kwargs):
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return ("\n", "fake-error")
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def fake_pretend_lvm_version(obj, *cmd, **kwargs):
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return (" LVM version: 2.03.00 (2012-03-06)\n", "")
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def fake_old_lvm_version(obj, *cmd, **kwargs):
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# Does not support thin prov or snap activation
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return (" LVM version: 2.02.65(2) (2012-03-06)\n", "")
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def fake_customised_lvm_version(obj, *cmd, **kwargs):
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return (" LVM version: 2.02.100(2)-RHEL6 (2013-09-12)\n", "")
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def fake_execute(obj, *cmd, **kwargs):
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cmd_string = ', '.join(cmd)
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data = "\n"
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if ('env, LC_ALL=C, vgs, --noheadings, --unit=g, -o, name' ==
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cmd_string):
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data = " fake-vg\n"
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data += " some-other-vg\n"
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elif ('env, LC_ALL=C, vgs, --noheadings, -o, name, fake-vg' ==
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cmd_string):
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data = " fake-vg\n"
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elif 'env, LC_ALL=C, vgs, --version' in cmd_string:
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data = " LVM version: 2.02.95(2) (2012-03-06)\n"
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elif ('env, LC_ALL=C, vgs, --noheadings, -o, uuid, fake-vg' in
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cmd_string):
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data = " kVxztV-dKpG-Rz7E-xtKY-jeju-QsYU-SLG6Z1\n"
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elif 'env, LC_ALL=C, vgs, --noheadings, --unit=g, ' \
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'-o, name,size,free,lv_count,uuid, ' \
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'--separator, :, --nosuffix' in cmd_string:
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data = (" test-prov-cap-vg-unit:10.00:10.00:0:"
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"mXzbuX-dKpG-Rz7E-xtKY-jeju-QsYU-SLG8Z4\n")
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if 'test-prov-cap-vg-unit' in cmd_string:
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return (data, "")
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data = (" test-prov-cap-vg-no-unit:10.00:10.00:0:"
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"mXzbuX-dKpG-Rz7E-xtKY-jeju-QsYU-SLG8Z4\n")
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if 'test-prov-cap-vg-no-unit' in cmd_string:
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return (data, "")
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data = " fake-vg:10.00:10.00:0:"\
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"kVxztV-dKpG-Rz7E-xtKY-jeju-QsYU-SLG6Z1\n"
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if 'fake-vg' in cmd_string:
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return (data, "")
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data += " fake-vg-2:10.00:10.00:0:"\
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"lWyauW-dKpG-Rz7E-xtKY-jeju-QsYU-SLG7Z2\n"
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data += " fake-vg-3:10.00:10.00:0:"\
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"mXzbuX-dKpG-Rz7E-xtKY-jeju-QsYU-SLG8Z3\n"
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elif ('env, LC_ALL=C, lvs, --noheadings, '
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'--unit=g, -o, vg_name,name,size, --nosuffix, '
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'fake-vg/lv-nothere' in cmd_string):
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raise processutils.ProcessExecutionError(
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stderr="One or more specified logical volume(s) not found.")
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elif ('env, LC_ALL=C, lvs, --noheadings, '
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'--unit=g, -o, vg_name,name,size, --nosuffix, '
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'fake-vg/lv-newerror' in cmd_string):
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raise processutils.ProcessExecutionError(
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stderr="Failed to find logical volume \"fake-vg/lv-newerror\"")
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elif ('env, LC_ALL=C, lvs, --noheadings, '
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'--unit=g, -o, vg_name,name,size' in cmd_string):
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if 'fake-unknown' in cmd_string:
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raise processutils.ProcessExecutionError(
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stderr="One or more volume(s) not found."
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)
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if 'test-prov-cap-vg-unit' in cmd_string:
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data = " fake-vg test-prov-cap-pool-unit 9.50g\n"
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data += " fake-vg fake-volume-1 1.00g\n"
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data += " fake-vg fake-volume-2 2.00g\n"
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elif 'test-prov-cap-vg-no-unit' in cmd_string:
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data = " fake-vg test-prov-cap-pool-no-unit 9.50\n"
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data += " fake-vg fake-volume-1 1.00\n"
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data += " fake-vg fake-volume-2 2.00\n"
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elif 'test-found-lv-name' in cmd_string:
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data = " fake-vg test-found-lv-name 9.50\n"
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else:
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data = " fake-vg fake-1 1.00g\n"
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data += " fake-vg fake-2 1.00g\n"
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elif ('env, LC_ALL=C, lvdisplay, --noheading, -C, -o, Attr' in
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cmd_string):
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if 'test-volumes' in cmd_string:
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data = ' wi-a-'
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else:
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data = ' owi-a-'
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elif 'env, LC_ALL=C, pvs, --noheadings' in cmd_string:
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data = " fake-vg|/dev/sda|10.00|1.00\n"
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data += " fake-vg|/dev/sdb|10.00|1.00\n"
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data += " fake-vg|/dev/sdc|10.00|8.99\n"
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data += " fake-vg-2|/dev/sdd|10.00|9.99\n"
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elif 'env, LC_ALL=C, lvs, --noheadings, --unit=g' \
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', -o, size,data_percent, --separator, :' in cmd_string:
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if 'test-prov-cap-pool' in cmd_string:
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data = " 9.5:20\n"
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else:
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data = " 9:12\n"
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elif 'lvcreate, -T, -L, ' in cmd_string:
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pass
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elif 'lvcreate, -T, -V, ' in cmd_string:
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pass
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elif 'lvcreate, --name, ' in cmd_string:
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pass
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else:
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raise AssertionError('unexpected command called: %s' % cmd_string)
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return (data, "")
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def test_create_lv_snapshot(self):
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self.assertEqual(self.vg.create_lv_snapshot('snapshot-1', 'fake-1'),
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None)
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self.mox.StubOutWithMock(self.vg, 'get_volume')
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self.vg.get_volume('fake-non-existent').AndReturn(None)
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self.mox.ReplayAll()
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try:
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self.vg.create_lv_snapshot('snapshot-1', 'fake-non-existent')
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except exception.VolumeDeviceNotFound as e:
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self.assertEqual(e.kwargs['device'], 'fake-non-existent')
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else:
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self.fail("Exception not raised")
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def test_vg_exists(self):
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self.assertEqual(self.vg._vg_exists(), True)
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def test_get_vg_uuid(self):
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self.assertEqual(self.vg._get_vg_uuid()[0],
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'kVxztV-dKpG-Rz7E-xtKY-jeju-QsYU-SLG6Z1')
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def test_get_all_volumes(self):
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out = self.vg.get_volumes()
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self.assertEqual(out[0]['name'], 'fake-1')
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self.assertEqual(out[0]['size'], '1.00g')
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self.assertEqual(out[0]['vg'], 'fake-vg')
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def test_get_volume(self):
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self.assertEqual(self.vg.get_volume('fake-1')['name'], 'fake-1')
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def test_get_volume_none(self):
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self.assertEqual(self.vg.get_volume('fake-unknown'), None)
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def test_get_lv_info_notfound(self):
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# lv-nothere will raise lvm < 2.102.112 exception
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self.assertEqual(
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[],
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self.vg.get_lv_info(
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'sudo', vg_name='fake-vg', lv_name='lv-nothere')
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)
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# lv-newerror will raise lvm > 2.102.112 exception
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self.assertEqual(
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[],
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self.vg.get_lv_info(
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'sudo', vg_name='fake-vg', lv_name='lv-newerror')
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)
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def test_get_lv_info_found(self):
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lv_info = [{'size': '9.50', 'name': 'test-found-lv-name',
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'vg': 'fake-vg'}]
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self.assertEqual(
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lv_info,
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self.vg.get_lv_info(
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'sudo', vg_name='fake-vg',
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lv_name='test-found-lv-name')
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)
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def test_get_lv_info_no_lv_name(self):
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lv_info = [{'name': 'fake-1', 'size': '1.00g', 'vg': 'fake-vg'},
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{'name': 'fake-2', 'size': '1.00g', 'vg': 'fake-vg'}]
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self.assertEqual(
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lv_info,
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self.vg.get_lv_info(
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'sudo', vg_name='fake-vg')
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)
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def test_get_all_physical_volumes(self):
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# Filtered VG version
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pvs = self.vg.get_all_physical_volumes('sudo', 'fake-vg')
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self.assertEqual(len(pvs), 3)
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# Non-Filtered, all VG's
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pvs = self.vg.get_all_physical_volumes('sudo')
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self.assertEqual(len(pvs), 4)
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def test_get_physical_volumes(self):
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pvs = self.vg.get_physical_volumes()
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self.assertEqual(len(pvs), 3)
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def test_get_volume_groups(self):
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self.assertEqual(len(self.vg.get_all_volume_groups('sudo')), 3)
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self.assertEqual(len(self.vg.get_all_volume_groups('sudo',
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'fake-vg')), 1)
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def test_thin_support(self):
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# lvm.supports_thin() is a static method and doesn't
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# use the self._executor fake we pass in on init
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# so we need to stub processutils.execute appropriately
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self.stubs.Set(processutils, 'execute', self.fake_execute)
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self.assertTrue(self.vg.supports_thin_provisioning('sudo'))
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self.stubs.Set(processutils, 'execute', self.fake_pretend_lvm_version)
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self.assertTrue(self.vg.supports_thin_provisioning('sudo'))
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self.stubs.Set(processutils, 'execute', self.fake_old_lvm_version)
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self.assertFalse(self.vg.supports_thin_provisioning('sudo'))
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self.stubs.Set(processutils,
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'execute',
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self.fake_customised_lvm_version)
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self.assertTrue(self.vg.supports_thin_provisioning('sudo'))
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def test_snapshot_lv_activate_support(self):
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self.vg._supports_snapshot_lv_activation = None
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self.stubs.Set(processutils, 'execute', self.fake_execute)
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self.assertTrue(self.vg.supports_snapshot_lv_activation)
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self.vg._supports_snapshot_lv_activation = None
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self.stubs.Set(processutils, 'execute', self.fake_old_lvm_version)
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self.assertFalse(self.vg.supports_snapshot_lv_activation)
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self.vg._supports_snapshot_lv_activation = None
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def test_lvchange_ignskipact_support_yes(self):
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"""Tests if lvchange -K is available via a lvm2 version check."""
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self.vg._supports_lvchange_ignoreskipactivation = None
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self.stubs.Set(processutils, 'execute', self.fake_pretend_lvm_version)
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self.assertTrue(self.vg.supports_lvchange_ignoreskipactivation)
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self.vg._supports_lvchange_ignoreskipactivation = None
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self.stubs.Set(processutils, 'execute', self.fake_old_lvm_version)
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self.assertFalse(self.vg.supports_lvchange_ignoreskipactivation)
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self.vg._supports_lvchange_ignoreskipactivation = None
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def test_thin_pool_creation(self):
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# The size of fake-vg volume group is 10g, so the calculated thin
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# pool size should be 9.5g (95% of 10g).
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self.assertEqual("9.5g", self.vg.create_thin_pool())
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# Passing a size parameter should result in a thin pool of that exact
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# size.
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for size in ("1g", "1.2g", "1.75g"):
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self.assertEqual(size, self.vg.create_thin_pool(size_str=size))
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def test_thin_pool_provisioned_capacity(self):
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self.vg.vg_thin_pool = "test-prov-cap-pool-unit"
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self.vg.vg_name = 'test-prov-cap-vg-unit'
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self.assertEqual(
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"9.5g",
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self.vg.create_thin_pool(name=self.vg.vg_thin_pool))
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self.assertEqual("9.50", self.vg.vg_thin_pool_size)
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self.assertEqual(7.6, self.vg.vg_thin_pool_free_space)
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self.assertEqual(3.0, self.vg.vg_provisioned_capacity)
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self.vg.vg_thin_pool = "test-prov-cap-pool-no-unit"
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self.vg.vg_name = 'test-prov-cap-vg-no-unit'
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self.assertEqual(
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"9.5g",
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self.vg.create_thin_pool(name=self.vg.vg_thin_pool))
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self.assertEqual("9.50", self.vg.vg_thin_pool_size)
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self.assertEqual(7.6, self.vg.vg_thin_pool_free_space)
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self.assertEqual(3.0, self.vg.vg_provisioned_capacity)
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def test_thin_pool_free_space(self):
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# The size of fake-vg-pool is 9g and the allocated data sums up to
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# 12% so the calculated free space should be 7.92
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self.assertEqual(float("7.92"),
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self.vg._get_thin_pool_free_space("fake-vg",
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"fake-vg-pool"))
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def test_volume_create_after_thin_creation(self):
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"""Test self.vg.vg_thin_pool is set to pool_name
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See bug #1220286 for more info.
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"""
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vg_name = "vg-name"
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pool_name = vg_name + "-pool"
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pool_path = "%s/%s" % (vg_name, pool_name)
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def executor(obj, *cmd, **kwargs):
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self.assertEqual(pool_path, cmd[-1])
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self.vg._executor = executor
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self.vg.create_thin_pool(pool_name, "1G")
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self.vg.create_volume("test", "1G", lv_type='thin')
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self.assertEqual(self.vg.vg_thin_pool, pool_name)
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def test_lv_has_snapshot(self):
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self.assertTrue(self.vg.lv_has_snapshot('fake-vg'))
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self.assertFalse(self.vg.lv_has_snapshot('test-volumes'))
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def test_activate_lv(self):
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self.mox.StubOutWithMock(self.vg, '_execute')
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self.vg._supports_lvchange_ignoreskipactivation = True
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self.vg._execute('lvchange', '-a', 'y', '--yes', '-K',
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'fake-vg/my-lv',
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root_helper='sudo', run_as_root=True)
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self.mox.ReplayAll()
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self.vg.activate_lv('my-lv')
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self.mox.VerifyAll()
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def test_get_mirrored_available_capacity(self):
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self.assertEqual(self.vg.vg_mirror_free_space(1), 2.0)
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