452 lines
18 KiB
Python
452 lines
18 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2010 United States Government as represented by the
|
|
# Administrator of the National Aeronautics and Space Administration.
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
"""
|
|
Tests for Volume Code.
|
|
|
|
"""
|
|
|
|
import cStringIO
|
|
|
|
from nova import context
|
|
from nova import exception
|
|
from nova import db
|
|
from nova import flags
|
|
from nova import log as logging
|
|
from nova import rpc
|
|
from nova import test
|
|
from nova import utils
|
|
from nova import volume
|
|
|
|
FLAGS = flags.FLAGS
|
|
LOG = logging.getLogger('nova.tests.volume')
|
|
|
|
|
|
class VolumeTestCase(test.TestCase):
|
|
"""Test Case for volumes."""
|
|
|
|
def setUp(self):
|
|
super(VolumeTestCase, self).setUp()
|
|
self.compute = utils.import_object(FLAGS.compute_manager)
|
|
self.flags(connection_type='fake')
|
|
self.volume = utils.import_object(FLAGS.volume_manager)
|
|
self.context = context.get_admin_context()
|
|
self.instance_id = db.instance_create(self.context, {})['id']
|
|
|
|
def tearDown(self):
|
|
db.instance_destroy(self.context, self.instance_id)
|
|
super(VolumeTestCase, self).tearDown()
|
|
|
|
@staticmethod
|
|
def _create_volume(size='0', snapshot_id=None):
|
|
"""Create a volume object."""
|
|
vol = {}
|
|
vol['size'] = size
|
|
vol['snapshot_id'] = snapshot_id
|
|
vol['user_id'] = 'fake'
|
|
vol['project_id'] = 'fake'
|
|
vol['availability_zone'] = FLAGS.storage_availability_zone
|
|
vol['status'] = "creating"
|
|
vol['attach_status'] = "detached"
|
|
return db.volume_create(context.get_admin_context(), vol)['id']
|
|
|
|
def test_create_delete_volume(self):
|
|
"""Test volume can be created and deleted."""
|
|
volume_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_id)
|
|
self.assertEqual(volume_id, db.volume_get(context.get_admin_context(),
|
|
volume_id).id)
|
|
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
self.assertRaises(exception.NotFound,
|
|
db.volume_get,
|
|
self.context,
|
|
volume_id)
|
|
|
|
def test_create_volume_from_snapshot(self):
|
|
"""Test volume can be created from a snapshot."""
|
|
volume_src_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_src_id)
|
|
snapshot_id = self._create_snapshot(volume_src_id)
|
|
self.volume.create_snapshot(self.context, volume_src_id, snapshot_id)
|
|
volume_dst_id = self._create_volume(0, snapshot_id)
|
|
self.volume.create_volume(self.context, volume_dst_id, snapshot_id)
|
|
self.assertEqual(volume_dst_id, db.volume_get(
|
|
context.get_admin_context(),
|
|
volume_dst_id).id)
|
|
self.assertEqual(snapshot_id, db.volume_get(
|
|
context.get_admin_context(),
|
|
volume_dst_id).snapshot_id)
|
|
|
|
self.volume.delete_volume(self.context, volume_dst_id)
|
|
self.volume.delete_snapshot(self.context, snapshot_id)
|
|
self.volume.delete_volume(self.context, volume_src_id)
|
|
|
|
def test_too_big_volume(self):
|
|
"""Ensure failure if a too large of a volume is requested."""
|
|
# FIXME(vish): validation needs to move into the data layer in
|
|
# volume_create
|
|
return True
|
|
try:
|
|
volume_id = self._create_volume('1001')
|
|
self.volume.create_volume(self.context, volume_id)
|
|
self.fail("Should have thrown TypeError")
|
|
except TypeError:
|
|
pass
|
|
|
|
def test_too_many_volumes(self):
|
|
"""Ensure that NoMoreTargets is raised when we run out of volumes."""
|
|
vols = []
|
|
total_slots = FLAGS.iscsi_num_targets
|
|
for _index in xrange(total_slots):
|
|
volume_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_id)
|
|
vols.append(volume_id)
|
|
volume_id = self._create_volume()
|
|
self.assertRaises(db.NoMoreTargets,
|
|
self.volume.create_volume,
|
|
self.context,
|
|
volume_id)
|
|
db.volume_destroy(context.get_admin_context(), volume_id)
|
|
for volume_id in vols:
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
|
|
def test_run_attach_detach_volume(self):
|
|
"""Make sure volume can be attached and detached from instance."""
|
|
inst = {}
|
|
inst['image_id'] = 1
|
|
inst['reservation_id'] = 'r-fakeres'
|
|
inst['launch_time'] = '10'
|
|
inst['user_id'] = 'fake'
|
|
inst['project_id'] = 'fake'
|
|
inst['instance_type_id'] = '2' # m1.tiny
|
|
inst['ami_launch_index'] = 0
|
|
instance_id = db.instance_create(self.context, inst)['id']
|
|
mountpoint = "/dev/sdf"
|
|
volume_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_id)
|
|
if FLAGS.fake_tests:
|
|
db.volume_attached(self.context, volume_id, instance_id,
|
|
mountpoint)
|
|
else:
|
|
self.compute.attach_volume(self.context,
|
|
instance_id,
|
|
volume_id,
|
|
mountpoint)
|
|
vol = db.volume_get(context.get_admin_context(), volume_id)
|
|
self.assertEqual(vol['status'], "in-use")
|
|
self.assertEqual(vol['attach_status'], "attached")
|
|
self.assertEqual(vol['mountpoint'], mountpoint)
|
|
instance_ref = db.volume_get_instance(self.context, volume_id)
|
|
self.assertEqual(instance_ref['id'], instance_id)
|
|
|
|
self.assertRaises(exception.Error,
|
|
self.volume.delete_volume,
|
|
self.context,
|
|
volume_id)
|
|
if FLAGS.fake_tests:
|
|
db.volume_detached(self.context, volume_id)
|
|
else:
|
|
self.compute.detach_volume(self.context,
|
|
instance_id,
|
|
volume_id)
|
|
vol = db.volume_get(self.context, volume_id)
|
|
self.assertEqual(vol['status'], "available")
|
|
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
self.assertRaises(exception.VolumeNotFound,
|
|
db.volume_get,
|
|
self.context,
|
|
volume_id)
|
|
db.instance_destroy(self.context, instance_id)
|
|
|
|
def test_concurrent_volumes_get_different_targets(self):
|
|
"""Ensure multiple concurrent volumes get different targets."""
|
|
volume_ids = []
|
|
targets = []
|
|
|
|
def _check(volume_id):
|
|
"""Make sure targets aren't duplicated."""
|
|
volume_ids.append(volume_id)
|
|
admin_context = context.get_admin_context()
|
|
iscsi_target = db.volume_get_iscsi_target_num(admin_context,
|
|
volume_id)
|
|
self.assert_(iscsi_target not in targets)
|
|
targets.append(iscsi_target)
|
|
LOG.debug(_("Target %s allocated"), iscsi_target)
|
|
total_slots = FLAGS.iscsi_num_targets
|
|
for _index in xrange(total_slots):
|
|
volume_id = self._create_volume()
|
|
d = self.volume.create_volume(self.context, volume_id)
|
|
_check(d)
|
|
for volume_id in volume_ids:
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
|
|
def test_multi_node(self):
|
|
# TODO(termie): Figure out how to test with two nodes,
|
|
# each of them having a different FLAG for storage_node
|
|
# This will allow us to test cross-node interactions
|
|
pass
|
|
|
|
@staticmethod
|
|
def _create_snapshot(volume_id, size='0'):
|
|
"""Create a snapshot object."""
|
|
snap = {}
|
|
snap['volume_size'] = size
|
|
snap['user_id'] = 'fake'
|
|
snap['project_id'] = 'fake'
|
|
snap['volume_id'] = volume_id
|
|
snap['status'] = "creating"
|
|
return db.snapshot_create(context.get_admin_context(), snap)['id']
|
|
|
|
def test_create_delete_snapshot(self):
|
|
"""Test snapshot can be created and deleted."""
|
|
volume_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_id)
|
|
snapshot_id = self._create_snapshot(volume_id)
|
|
self.volume.create_snapshot(self.context, volume_id, snapshot_id)
|
|
self.assertEqual(snapshot_id,
|
|
db.snapshot_get(context.get_admin_context(),
|
|
snapshot_id).id)
|
|
|
|
self.volume.delete_snapshot(self.context, snapshot_id)
|
|
self.assertRaises(exception.NotFound,
|
|
db.snapshot_get,
|
|
self.context,
|
|
snapshot_id)
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
|
|
def test_create_snapshot_force(self):
|
|
"""Test snapshot in use can be created forcibly."""
|
|
|
|
def fake_cast(ctxt, topic, msg):
|
|
pass
|
|
self.stubs.Set(rpc, 'cast', fake_cast)
|
|
|
|
volume_id = self._create_volume()
|
|
self.volume.create_volume(self.context, volume_id)
|
|
db.volume_attached(self.context, volume_id, self.instance_id,
|
|
'/dev/sda1')
|
|
|
|
volume_api = volume.api.API()
|
|
self.assertRaises(exception.ApiError,
|
|
volume_api.create_snapshot,
|
|
self.context, volume_id,
|
|
'fake_name', 'fake_description')
|
|
snapshot_ref = volume_api.create_snapshot_force(self.context,
|
|
volume_id,
|
|
'fake_name',
|
|
'fake_description')
|
|
db.snapshot_destroy(self.context, snapshot_ref['id'])
|
|
db.volume_destroy(self.context, volume_id)
|
|
|
|
|
|
class DriverTestCase(test.TestCase):
|
|
"""Base Test class for Drivers."""
|
|
driver_name = "nova.volume.driver.FakeAOEDriver"
|
|
|
|
def setUp(self):
|
|
super(DriverTestCase, self).setUp()
|
|
self.flags(volume_driver=self.driver_name,
|
|
logging_default_format_string="%(message)s")
|
|
self.volume = utils.import_object(FLAGS.volume_manager)
|
|
self.context = context.get_admin_context()
|
|
self.output = ""
|
|
|
|
def _fake_execute(_command, *_args, **_kwargs):
|
|
"""Fake _execute."""
|
|
return self.output, None
|
|
self.volume.driver._execute = _fake_execute
|
|
self.volume.driver._sync_execute = _fake_execute
|
|
|
|
log = logging.getLogger()
|
|
self.stream = cStringIO.StringIO()
|
|
log.addHandler(logging.StreamHandler(self.stream))
|
|
|
|
inst = {}
|
|
self.instance_id = db.instance_create(self.context, inst)['id']
|
|
|
|
def tearDown(self):
|
|
super(DriverTestCase, self).tearDown()
|
|
|
|
def _attach_volume(self):
|
|
"""Attach volumes to an instance. This function also sets
|
|
a fake log message."""
|
|
return []
|
|
|
|
def _detach_volume(self, volume_id_list):
|
|
"""Detach volumes from an instance."""
|
|
for volume_id in volume_id_list:
|
|
db.volume_detached(self.context, volume_id)
|
|
self.volume.delete_volume(self.context, volume_id)
|
|
|
|
|
|
class AOETestCase(DriverTestCase):
|
|
"""Test Case for AOEDriver"""
|
|
driver_name = "nova.volume.driver.AOEDriver"
|
|
|
|
def setUp(self):
|
|
super(AOETestCase, self).setUp()
|
|
|
|
def tearDown(self):
|
|
super(AOETestCase, self).tearDown()
|
|
|
|
def _attach_volume(self):
|
|
"""Attach volumes to an instance. This function also sets
|
|
a fake log message."""
|
|
volume_id_list = []
|
|
for index in xrange(3):
|
|
vol = {}
|
|
vol['size'] = 0
|
|
volume_id = db.volume_create(self.context,
|
|
vol)['id']
|
|
self.volume.create_volume(self.context, volume_id)
|
|
|
|
# each volume has a different mountpoint
|
|
mountpoint = "/dev/sd" + chr((ord('b') + index))
|
|
db.volume_attached(self.context, volume_id, self.instance_id,
|
|
mountpoint)
|
|
|
|
(shelf_id, blade_id) = db.volume_get_shelf_and_blade(self.context,
|
|
volume_id)
|
|
self.output += "%s %s eth0 /dev/nova-volumes/vol-foo auto run\n" \
|
|
% (shelf_id, blade_id)
|
|
|
|
volume_id_list.append(volume_id)
|
|
|
|
return volume_id_list
|
|
|
|
def test_check_for_export_with_no_volume(self):
|
|
"""No log message when no volume is attached to an instance."""
|
|
self.stream.truncate(0)
|
|
self.volume.check_for_export(self.context, self.instance_id)
|
|
self.assertEqual(self.stream.getvalue(), '')
|
|
|
|
def test_check_for_export_with_all_vblade_processes(self):
|
|
"""No log message when all the vblade processes are running."""
|
|
volume_id_list = self._attach_volume()
|
|
|
|
self.stream.truncate(0)
|
|
self.volume.check_for_export(self.context, self.instance_id)
|
|
self.assertEqual(self.stream.getvalue(), '')
|
|
|
|
self._detach_volume(volume_id_list)
|
|
|
|
def test_check_for_export_with_vblade_process_missing(self):
|
|
"""Output a warning message when some vblade processes aren't
|
|
running."""
|
|
volume_id_list = self._attach_volume()
|
|
|
|
# the first vblade process isn't running
|
|
self.output = self.output.replace("run", "down", 1)
|
|
(shelf_id, blade_id) = db.volume_get_shelf_and_blade(self.context,
|
|
volume_id_list[0])
|
|
|
|
msg_is_match = False
|
|
self.stream.truncate(0)
|
|
try:
|
|
self.volume.check_for_export(self.context, self.instance_id)
|
|
except exception.ProcessExecutionError, e:
|
|
volume_id = volume_id_list[0]
|
|
msg = _("Cannot confirm exported volume id:%(volume_id)s. "
|
|
"vblade process for e%(shelf_id)s.%(blade_id)s "
|
|
"isn't running.") % locals()
|
|
|
|
msg_is_match = (0 <= e.message.find(msg))
|
|
|
|
self.assertTrue(msg_is_match)
|
|
self._detach_volume(volume_id_list)
|
|
|
|
|
|
class ISCSITestCase(DriverTestCase):
|
|
"""Test Case for ISCSIDriver"""
|
|
driver_name = "nova.volume.driver.ISCSIDriver"
|
|
|
|
def setUp(self):
|
|
super(ISCSITestCase, self).setUp()
|
|
|
|
def tearDown(self):
|
|
super(ISCSITestCase, self).tearDown()
|
|
|
|
def _attach_volume(self):
|
|
"""Attach volumes to an instance. This function also sets
|
|
a fake log message."""
|
|
volume_id_list = []
|
|
for index in xrange(3):
|
|
vol = {}
|
|
vol['size'] = 0
|
|
vol_ref = db.volume_create(self.context, vol)
|
|
self.volume.create_volume(self.context, vol_ref['id'])
|
|
vol_ref = db.volume_get(self.context, vol_ref['id'])
|
|
|
|
# each volume has a different mountpoint
|
|
mountpoint = "/dev/sd" + chr((ord('b') + index))
|
|
db.volume_attached(self.context, vol_ref['id'], self.instance_id,
|
|
mountpoint)
|
|
volume_id_list.append(vol_ref['id'])
|
|
|
|
return volume_id_list
|
|
|
|
def test_check_for_export_with_no_volume(self):
|
|
"""No log message when no volume is attached to an instance."""
|
|
self.stream.truncate(0)
|
|
self.volume.check_for_export(self.context, self.instance_id)
|
|
self.assertEqual(self.stream.getvalue(), '')
|
|
|
|
def test_check_for_export_with_all_volume_exported(self):
|
|
"""No log message when all the vblade processes are running."""
|
|
volume_id_list = self._attach_volume()
|
|
|
|
self.mox.StubOutWithMock(self.volume.driver, '_execute')
|
|
for i in volume_id_list:
|
|
tid = db.volume_get_iscsi_target_num(self.context, i)
|
|
self.volume.driver._execute("ietadm", "--op", "show",
|
|
"--tid=%(tid)d" % locals(),
|
|
run_as_root=True)
|
|
|
|
self.stream.truncate(0)
|
|
self.mox.ReplayAll()
|
|
self.volume.check_for_export(self.context, self.instance_id)
|
|
self.assertEqual(self.stream.getvalue(), '')
|
|
self.mox.UnsetStubs()
|
|
|
|
self._detach_volume(volume_id_list)
|
|
|
|
def test_check_for_export_with_some_volume_missing(self):
|
|
"""Output a warning message when some volumes are not recognied
|
|
by ietd."""
|
|
volume_id_list = self._attach_volume()
|
|
|
|
# the first vblade process isn't running
|
|
tid = db.volume_get_iscsi_target_num(self.context, volume_id_list[0])
|
|
self.mox.StubOutWithMock(self.volume.driver, '_execute')
|
|
self.volume.driver._execute("ietadm", "--op", "show",
|
|
"--tid=%(tid)d" % locals(),
|
|
run_as_root=True).AndRaise(
|
|
exception.ProcessExecutionError())
|
|
|
|
self.mox.ReplayAll()
|
|
self.assertRaises(exception.ProcessExecutionError,
|
|
self.volume.check_for_export,
|
|
self.context,
|
|
self.instance_id)
|
|
msg = _("Cannot confirm exported volume id:%s.") % volume_id_list[0]
|
|
self.assertTrue(0 <= self.stream.getvalue().find(msg))
|
|
self.mox.UnsetStubs()
|
|
|
|
self._detach_volume(volume_id_list)
|