1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
# Copyright 2012 OpenStack Foundation
# 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.
import tempfile
import fixtures
from oslo.concurrency import processutils
from nova import test
from nova import utils
from nova.virt.disk import api
from nova.virt.disk.mount import api as mount
class FakeMount(object):
device = None
@staticmethod
def instance_for_format(imgfile, mountdir, partition, imgfmt):
return FakeMount()
def get_dev(self):
pass
def unget_dev(self):
pass
class APITestCase(test.NoDBTestCase):
def test_can_resize_need_fs_type_specified(self):
# NOTE(mikal): Bug 1094373 saw a regression where we failed to
# treat a failure to mount as a failure to be able to resize the
# filesystem
def _fake_get_disk_size(path):
return 10
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.disk.api.get_disk_size', _fake_get_disk_size))
def fake_trycmd(*args, **kwargs):
return '', 'broken'
self.useFixture(fixtures.MonkeyPatch('nova.utils.trycmd', fake_trycmd))
def fake_returns_true(*args, **kwargs):
return True
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.disk.mount.nbd.NbdMount.get_dev',
fake_returns_true))
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.disk.mount.nbd.NbdMount.map_dev',
fake_returns_true))
# Force the use of localfs, which is what was used during the failure
# reported in the bug
def fake_import_fails(*args, **kwargs):
raise Exception('Failed')
self.useFixture(fixtures.MonkeyPatch(
'oslo.utils.import_module',
fake_import_fails))
imgfile = tempfile.NamedTemporaryFile()
self.addCleanup(imgfile.close)
self.assertFalse(api.is_image_partitionless(imgfile, use_cow=True))
def test_resize2fs_success(self):
imgfile = tempfile.NamedTemporaryFile()
self.mox.StubOutWithMock(utils, 'execute')
utils.execute('e2fsck',
'-fp',
imgfile,
check_exit_code=[0, 1, 2],
run_as_root=False)
utils.execute('resize2fs',
imgfile,
check_exit_code=False,
run_as_root=False)
self.mox.ReplayAll()
api.resize2fs(imgfile)
def test_resize2fs_e2fsck_fails(self):
imgfile = tempfile.NamedTemporaryFile()
self.mox.StubOutWithMock(utils, 'execute')
utils.execute('e2fsck',
'-fp',
imgfile,
check_exit_code=[0, 1, 2],
run_as_root=False).AndRaise(
processutils.ProcessExecutionError("fs error"))
self.mox.ReplayAll()
api.resize2fs(imgfile)
def test_extend_qcow_success(self):
imgfile = tempfile.NamedTemporaryFile()
imgsize = 10
device = "/dev/sdh"
use_cow = True
self.flags(resize_fs_using_block_device=True)
mounter = FakeMount.instance_for_format(
imgfile, None, None, 'qcow2')
mounter.device = device
self.mox.StubOutWithMock(api, 'can_resize_image')
self.mox.StubOutWithMock(utils, 'execute')
self.mox.StubOutWithMock(api, 'is_image_partitionless')
self.mox.StubOutWithMock(mounter, 'get_dev')
self.mox.StubOutWithMock(mounter, 'unget_dev')
self.mox.StubOutWithMock(api, 'resize2fs')
self.mox.StubOutWithMock(mount.Mount, 'instance_for_format')
api.can_resize_image(imgfile, imgsize).AndReturn(True)
utils.execute('qemu-img', 'resize', imgfile, imgsize)
api.is_image_partitionless(imgfile, use_cow).AndReturn(True)
mount.Mount.instance_for_format(
imgfile, None, None, 'qcow2').AndReturn(mounter)
mounter.get_dev().AndReturn(True)
api.resize2fs(mounter.device, run_as_root=True, check_exit_code=[0])
mounter.unget_dev()
self.mox.ReplayAll()
api.extend(imgfile, imgsize, use_cow=use_cow)
def test_extend_raw_success(self):
imgfile = tempfile.NamedTemporaryFile()
imgsize = 10
use_cow = False
self.mox.StubOutWithMock(api, 'can_resize_image')
self.mox.StubOutWithMock(utils, 'execute')
self.mox.StubOutWithMock(api, 'is_image_partitionless')
self.mox.StubOutWithMock(api, 'resize2fs')
api.can_resize_image(imgfile, imgsize).AndReturn(True)
utils.execute('qemu-img', 'resize', imgfile, imgsize)
api.is_image_partitionless(imgfile, use_cow).AndReturn(True)
api.resize2fs(imgfile, run_as_root=False, check_exit_code=[0])
self.mox.ReplayAll()
api.extend(imgfile, imgsize, use_cow=use_cow)
|
