def test_list_block_devices(self, mock_ureport, mock_breport, mock_ereport,
mock_isdisk, mock_get_devs):
# should run blockdev --report command
# in order to get a list of block devices
# should call report methods to get device info
# should call is_disk method to filter out
# those block devices which are not disks
mock_get_devs.return_value = ['/dev/fake', '/dev/fake1', '/dev/sr0']
def isdisk_side_effect(arg, uspec=None, bspec=None):
if arg == '/dev/fake':
return True
elif arg in ('/dev/fake1', '/dev/sr0'):
return False
mock_isdisk.side_effect = isdisk_side_effect
mock_ureport.return_value = {'key0': 'value0'}
mock_breport.return_value = {'key1': 'value1'}
mock_ereport.return_value = {'key2': 'value2'}
expected = [{
'device': '/dev/fake',
'uspec': {'key0': 'value0'},
'bspec': {'key1': 'value1'},
'espec': {'key2': 'value2'}
}]
self.assertEqual(hu.list_block_devices(), expected)
self.assertEqual(mock_ureport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
self.assertEqual(mock_breport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
self.assertEqual(mock_ereport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
def hu_disks(self):
"""Actual disks which are available on this node
it is a list of dicts which are formatted other way than
ks_spaces disks. To match both of those formats use
_match_device method.
"""
if not getattr(self, '_hu_disks', None):
self._hu_disks = hu.list_block_devices(disks=True)
return self._hu_disks
def hu_disks(self):
"""Actual disks which are available on this node
it is a list of dicts which are formatted other way than
ks_spaces disks. To match both of those formats use
_match_device method.
"""
if not getattr(self, '_hu_disks', None):
self._hu_disks = hu.list_block_devices(disks=True)
return self._hu_disks
def mdcreate(mdname, level, device, *args):
mds = mddisplay()
# check if md device already exists
if filter(lambda x: x['name'] == mdname, mds):
raise errors.MDAlreadyExistsError(
'Error while creating md: md %s already exists' % mdname)
# check if level argument is valid
supported_levels = ('0', '1', 'raid0', 'raid1', 'stripe', 'mirror')
if level not in supported_levels:
raise errors.MDWrongSpecError('Error while creating md device: '
'level must be one of: %s' %
', '.join(supported_levels))
devices = [device] + list(args)
# check if all necessary devices exist
if not set(devices).issubset(
set([bd['device'] for bd in hu.list_block_devices(disks=False)])):
raise errors.MDNotFoundError(
'Error while creating md: at least one of devices is not found')
# check if devices are not parts of some md array
if set(devices) & \
set(reduce(lambda x, y: x + y,
[md.get('devices', []) for md in mds], [])):
raise errors.MDDeviceDuplicationError(
'Error while creating md: at least one of devices is '
'already in belongs to some md')
#FIXME: mdadm will ask user to continue creating if any device appears to
# be a part of raid array. Superblock zeroing helps to avoid that.
map(mdclean, devices)
utils.execute('mdadm',
'--create',
'--force',
mdname,
'-e0.90',
'--level=%s' % level,
'--raid-devices=%s' % len(devices),
*devices,
check_exit_code=[0])
def test_list_block_devices(self, mock_exec, mock_ureport, mock_breport,
mock_ereport, mock_isdisk):
# should run blockdev --report command
# in order to get a list of block devices
# should call report methods to get device info
# should call is_disk method to filter out
# those block devices which are not disks
mock_exec.return_value = (
'RO RA SSZ BSZ StartSec Size Device\n'
'rw 256 512 4096 0 320072933376 /dev/fake\n'
'rw 256 512 4096 2048 7998537728 /dev/fake1\n'
'rw 256 512 512 0 1073741312 /dev/sr0\n',
''
)
def isdisk_side_effect(arg, uspec=None, bspec=None):
if arg == '/dev/fake':
return True
elif arg in ('/dev/fake1', '/dev/sr0'):
return False
mock_isdisk.side_effect = isdisk_side_effect
mock_ureport.return_value = {'key0': 'value0'}
mock_breport.return_value = {'key1': 'value1'}
mock_ereport.return_value = {'key2': 'value2'}
expected = [{
'device': '/dev/fake',
'startsec': '0',
'size': 320072933376,
'uspec': {'key0': 'value0'},
'bspec': {'key1': 'value1'},
'espec': {'key2': 'value2'}
}]
self.assertEqual(hu.list_block_devices(), expected)
mock_exec.assert_called_once_with('blockdev', '--report',
check_exit_code=[0])
self.assertEqual(mock_ureport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
self.assertEqual(mock_breport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
self.assertEqual(mock_ereport.call_args_list, [mock.call('/dev/fake'),
mock.call('/dev/fake1'), mock.call('/dev/sr0')])
def mdcreate(mdname, level, device, *args):
mds = mddisplay()
# check if md device already exists
if filter(lambda x: x['name'] == mdname, mds):
raise errors.MDAlreadyExistsError(
'Error while creating md: md %s already exists' % mdname)
# check if level argument is valid
supported_levels = ('0', '1', 'raid0', 'raid1', 'stripe', 'mirror')
if level not in supported_levels:
raise errors.MDWrongSpecError(
'Error while creating md device: '
'level must be one of: %s' % ', '.join(supported_levels))
devices = [device] + list(args)
# check if all necessary devices exist
if not set(devices).issubset(
set([bd['device'] for bd in hu.list_block_devices(disks=False)])):
raise errors.MDNotFoundError(
'Error while creating md: at least one of devices is not found')
# check if devices are not parts of some md array
if set(devices) & \
set(reduce(lambda x, y: x + y,
[md.get('devices', []) for md in mds], [])):
raise errors.MDDeviceDuplicationError(
'Error while creating md: at least one of devices is '
'already in belongs to some md')
#FIXME: mdadm will ask user to continue creating if any device appears to
# be a part of raid array. Superblock zeroing helps to avoid that.
map(mdclean, devices)
utils.execute('mdadm', '--create', '--force', mdname, '-e0.90',
'--level=%s' % level,
'--raid-devices=%s' % len(devices), *devices,
check_exit_code=[0])