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Clone VM's volume into the same pool, unless overridden specifically

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When cloning VM, create it in the same pool as the source one.
Previously it always used default pool, which means for example renaming
a VM in non-default pool moved it back to the default one.

Fixes QubesOS/qubes-issues#4145
Fixes QubesOS/qubes-issues#4523
This commit is contained in:
Marek Marczykowski-Górecki 2018-12-07 22:20:01 +01:00
parent 1c82441781
commit e827e47926
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GPG Key ID: 063938BA42CFA724
2 changed files with 107 additions and 49 deletions
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15
qubesadmin/app.py
View File

@ -329,6 +329,21 @@ class QubesBase(qubesadmin.base.PropertyHolder):
label = src_vm.label
if pool is None and pools is None:
# use the same pools as the source - check if non default is used
for volume in sorted(src_vm.volumes.values()):
if not volume.save_on_stop:
# clone only persistent volumes
continue
if ignore_volumes and volume.name in ignore_volumes:
continue
default_pool = getattr(self.app, 'default_pool_' + volume.name,
volume.pool)
if default_pool != volume.pool:
if pools is None:
pools = {}
pools[volume.name] = volume.pool
method_prefix = 'admin.vm.Create.'
payload = 'name={} label={}'.format(new_name, label)
if pool:

141
qubesadmin/tests/app.py
View File

@ -298,61 +298,62 @@ class TC_10_QubesBase(qubesadmin.tests.QubesTestCase):
b'0\x00'
# storage
self.app.expected_calls[
(dst, 'admin.vm.volume.List', None, None)] = \
b'0\x00root\nprivate\nvolatile\nkernel\n'
self.app.expected_calls[
(dst, 'admin.vm.volume.Info', 'root', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-test-vm/root\n' \
b'size=10737418240\n' \
b'usage=2147483648\n' \
b'rw=False\n' \
b'internal=True\n' \
b'source=vm-test-template/root\n' \
b'save_on_stop=False\n' \
b'snap_on_start=True\n'
self.app.expected_calls[
(dst, 'admin.vm.volume.Info', 'private', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-test-vm/private\n' \
b'size=2147483648\n' \
b'usage=214748364\n' \
b'rw=True\n' \
b'internal=True\n' \
b'save_on_stop=True\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(dst, 'admin.vm.volume.Info', 'volatile', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-test-vm/volatile\n' \
b'size=10737418240\n' \
b'usage=0\n' \
b'rw=True\n' \
b'internal=True\n' \
b'source=None\n' \
b'save_on_stop=False\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(dst, 'admin.vm.volume.Info', 'kernel', None)] = \
b'0\x00pool=linux-kernel\n' \
b'vid=\n' \
b'size=0\n' \
b'usage=0\n' \
b'rw=False\n' \
b'internal=True\n' \
b'source=None\n' \
b'save_on_stop=False\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(src, 'admin.vm.volume.List', None, None)] = \
b'0\x00root\nprivate\nvolatile\nkernel\n'
for vm in (src, dst):
self.app.expected_calls[
(vm, 'admin.vm.volume.Info', 'root', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-' + vm.encode() + b'/root\n' \
b'size=10737418240\n' \
b'usage=2147483648\n' \
b'rw=False\n' \
b'internal=True\n' \
b'source=vm-test-template/root\n' \
b'save_on_stop=False\n' \
b'snap_on_start=True\n'
self.app.expected_calls[
(vm, 'admin.vm.volume.Info', 'private', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-' + vm.encode() + b'/private\n' \
b'size=2147483648\n' \
b'usage=214748364\n' \
b'rw=True\n' \
b'internal=True\n' \
b'save_on_stop=True\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(vm, 'admin.vm.volume.Info', 'volatile', None)] = \
b'0\x00pool=lvm\n' \
b'vid=vm-' + vm.encode() + b'/volatile\n' \
b'size=10737418240\n' \
b'usage=0\n' \
b'rw=True\n' \
b'internal=True\n' \
b'source=None\n' \
b'save_on_stop=False\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(vm, 'admin.vm.volume.Info', 'kernel', None)] = \
b'0\x00pool=linux-kernel\n' \
b'vid=\n' \
b'size=0\n' \
b'usage=0\n' \
b'rw=False\n' \
b'internal=True\n' \
b'source=None\n' \
b'save_on_stop=False\n' \
b'snap_on_start=False\n'
self.app.expected_calls[
(vm, 'admin.vm.volume.List', None, None)] = \
b'0\x00root\nprivate\nvolatile\nkernel\n'
self.app.expected_calls[
(src, 'admin.vm.volume.CloneFrom', 'private', None)] = \
b'0\x00token-private'
self.app.expected_calls[
(dst, 'admin.vm.volume.CloneTo', 'private', b'token-private')] = \
b'0\x00'
self.app.expected_calls[
('dom0', 'admin.property.Get', 'default_pool_private', None)] = \
b'0\0default=True type=str lvm'
def test_030_clone(self):
self.clone_setup_common_calls('test-vm', 'new-name')
@ -387,6 +388,11 @@ class TC_10_QubesBase(qubesadmin.tests.QubesTestCase):
def test_032_clone_pool(self):
self.clone_setup_common_calls('test-vm', 'new-name')
for volume in ('root', 'private', 'volatile', 'kernel'):
del self.app.expected_calls[
'test-vm', 'admin.vm.volume.Info', volume, None]
del self.app.expected_calls[
'dom0', 'admin.property.Get', 'default_pool_private', None]
self.app.expected_calls[('dom0', 'admin.vm.CreateInPool.AppVM',
'test-template',
b'name=new-name label=red pool=some-pool')] = b'0\x00'
@ -401,6 +407,11 @@ class TC_10_QubesBase(qubesadmin.tests.QubesTestCase):
def test_033_clone_pools(self):
self.clone_setup_common_calls('test-vm', 'new-name')
for volume in ('root', 'private', 'volatile', 'kernel'):
del self.app.expected_calls[
'test-vm', 'admin.vm.volume.Info', volume, None]
del self.app.expected_calls[
'dom0', 'admin.property.Get', 'default_pool_private', None]
self.app.expected_calls[('dom0', 'admin.vm.CreateInPool.AppVM',
'test-template',
b'name=new-name label=red pool:private=some-pool '
@ -451,6 +462,10 @@ class TC_10_QubesBase(qubesadmin.tests.QubesTestCase):
self.app.expected_calls[
('test-vm', 'admin.vm.property.List', None, None)] = \
b'0\0qid\nname\ntemplate\nlabel\nmemory\n'
# simplify it a little, shouldn't get this far anyway
self.app.expected_calls[
('test-vm', 'admin.vm.volume.List', None, None)] = \
b'0\x00'
self.app.expected_calls[
('test-vm', 'admin.vm.property.Get', 'label', None)] = \
b'0\0default=False type=label red'
@ -587,6 +602,34 @@ class TC_10_QubesBase(qubesadmin.tests.QubesTestCase):
self.app.clone_vm('test-vm', 'new-name')
self.assertAllCalled()
def test_042_clone_nondefault_pool(self):
self.clone_setup_common_calls('test-vm', 'new-name')
self.app.expected_calls[
('test-vm', 'admin.vm.volume.Info', 'private', None)] = \
b'0\x00pool=another\n' \
b'vid=vm-test-vm/private\n' \
b'size=2147483648\n' \
b'usage=214748364\n' \
b'rw=True\n' \
b'internal=True\n' \
b'save_on_stop=True\n' \
b'snap_on_start=False\n'
self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
b'0\x00new-name class=AppVM state=Halted\n' \
b'test-vm class=AppVM state=Halted\n' \
b'test-template class=TemplateVM state=Halted\n' \
b'test-net class=AppVM state=Halted\n'
self.app.expected_calls[('dom0', 'admin.vm.CreateInPool.AppVM',
'test-template', b'name=new-name label=red pool:private=another')]\
= b'0\x00'
new_vm = self.app.clone_vm('test-vm', 'new-name')
self.assertEqual(new_vm.name, 'new-name')
self.check_output_mock.assert_called_once_with(
['qvm-appmenus', '--init', '--update',
'--source', 'test-vm', 'new-name'],
stderr=subprocess.STDOUT
)
self.assertAllCalled()
class TC_20_QubesLocal(unittest.TestCase):