def _qga_call_fsinfo(self, vm):
""" Get file system information and disk mapping """
disks = []
mapping = {}
ret = self.call_qga_command(vm, _QEMU_FSINFO_COMMAND)
if ret is None:
return {}
for fs in ret:
try:
fsinfo = guestagenthelpers.translate_fsinfo(fs)
except ValueError:
self.log.warning('Invalid message returned to call \'%s\': %r',
_QEMU_FSINFO_COMMAND, ret)
continue
# Skip stats with missing info. This is e.g. the case of System
# Reserved volumes on Windows.
if fsinfo['total'] != '' and fsinfo['used'] != '':
disks.append(fsinfo)
if _FS_DISK_FIELD not in fs:
continue
for d in fs[_FS_DISK_FIELD]:
if _FS_DISK_SERIAL_FIELD in d and \
_FS_DISK_DEVICE_FIELD in d:
dev = d[_FS_DISK_DEVICE_FIELD]
m = _DISK_DEVICE_RE.match(dev)
if m is not None:
dev = m.group(1)
self.log.debug('Stripping partition number: %s -> %s',
d[_FS_DISK_DEVICE_FIELD], dev)
mapping[d[_FS_DISK_SERIAL_FIELD]] = {'name': dev}
return {'disksUsage': disks, 'diskMapping': mapping}
def _libvirt_fsinfo(self, info, store_disk_mapping=True):
disks = []
mapping = {}
for i in range(info.get('fs.count', 0)):
prefix = 'fs.{:d}.'.format(i)
try:
fsinfo = guestagenthelpers.translate_fsinfo(info, i)
except ValueError:
self.log.warning(
'Invalid message returned to call \'%s\': %r',
_QEMU_FSINFO_COMMAND, info)
continue
# Skip stats with missing info. This is e.g. the case of System
# Reserved volumes on Windows.
if fsinfo['total'] != '' and fsinfo['used'] != '':
disks.append(fsinfo)
# Store disk mapping
if not store_disk_mapping:
continue
for di in range(info.get(prefix + 'disk.count')):
disk_prefix = '{}disk.{:d}.'.format(prefix, di)
if (disk_prefix + 'serial') in info and \
(disk_prefix + 'device') in info:
dev = info[disk_prefix + 'device']
m = _DISK_DEVICE_RE.match(dev)
if m is not None:
dev = m.group(1)
self.log.debug(
'Stripping partition number: %s -> %s',
info[disk_prefix + 'device'], dev)
mapping[info[disk_prefix + 'serial']] = {'name': dev}
if store_disk_mapping:
return {'disksUsage': disks, 'diskMapping': mapping}
else:
return {'disksUsage': disks}
def _execute(self):
disks = []
mapping = {}
ret = self._qga_poller.call_qga_command(self._vm, _QEMU_FSINFO_COMMAND)
if ret is None:
return
for fs in ret:
try:
fsinfo = guestagenthelpers.translate_fsinfo(fs)
except ValueError:
self._qga_poller.log.warning(
'Invalid message returned to call \'%s\': %r',
_QEMU_FSINFO_COMMAND, ret)
continue
# Skip stats with missing info. This is e.g. the case of System
# Reserved volumes on Windows.
if fsinfo['total'] != '' and fsinfo['used'] != '':
disks.append(fsinfo)
if _FS_DISK_FIELD not in fs:
continue
for d in fs[_FS_DISK_FIELD]:
if _FS_DISK_SERIAL_FIELD in d and \
_FS_DISK_DEVICE_FIELD in d:
mapping[d[_FS_DISK_SERIAL_FIELD]] = \
{'name': d[_FS_DISK_DEVICE_FIELD]}
self._qga_poller.update_guest_info(self._vm.id, {
'disksUsage': disks,
'diskMapping': mapping
})
def _execute(self):
disks = []
mapping = {}
ret = self._qga_poller.call_qga_command(
self._vm, _QEMU_FSINFO_COMMAND)
if ret is None:
return
for fs in ret:
try:
fsinfo = guestagenthelpers.translate_fsinfo(fs)
except ValueError:
self._qga_poller.log.warning(
'Invalid message returned to call \'%s\': %r',
_QEMU_FSINFO_COMMAND, ret)
continue
# Skip stats with missing info. This is e.g. the case of System
# Reserved volumes on Windows.
if fsinfo['total'] != '' and fsinfo['used'] != '':
disks.append(fsinfo)
if _FS_DISK_FIELD not in fs:
continue
for d in fs[_FS_DISK_FIELD]:
if _FS_DISK_SERIAL_FIELD in d and \
_FS_DISK_DEVICE_FIELD in d:
mapping[d[_FS_DISK_SERIAL_FIELD]] = \
{'name': d[_FS_DISK_DEVICE_FIELD]}
self._qga_poller.update_guest_info(
self._vm.id,
{'disksUsage': disks, 'diskMapping': mapping})
def test_translate_fsinfo(self):
assert guestagenthelpers.translate_fsinfo({
'name': 'dm-3',
'used-bytes': 123,
'total-bytes': 456,
'mountpoint': '/home',
'disk': [],
'type': 'ext4',
}) == {
'fs': 'ext4',
'path': '/home',
'total': '456',
'used': '123',
}
def test_translate_fsinfo(self):
self.assertEqual(
guestagenthelpers.translate_fsinfo({
'name': 'dm-3',
'used-bytes': 123,
'total-bytes': 456,
'mountpoint': '/home',
'disk': [],
'type': 'ext4',
}),
{
'fs': 'ext4',
'path': '/home',
'total': '456',
'used': '123',
}),
def _libvirt_fsinfo(self, info):
disks = []
mapping = {}
for i in range(info.get('fs.count', 0)):
prefix = 'fs.{:d}.'.format(i)
try:
fsinfo = guestagenthelpers.translate_fsinfo(info, i)
except ValueError:
self.log.warning('Invalid message returned to call \'%s\': %r',
_QEMU_FSINFO_COMMAND, info)
continue
# Skip stats with missing info. This is e.g. the case of System
# Reserved volumes on Windows.
if fsinfo['total'] != '' and fsinfo['used'] != '':
disks.append(fsinfo)
for di in range(info.get(prefix + 'disk.count')):
disk_prefix = '{}disk.{:d}.'.format(prefix, di)
if (disk_prefix + 'serial') in info and \
(disk_prefix + 'device') in info:
mapping[info[disk_prefix + 'serial']] = \
{'name': info[disk_prefix + 'device']}
return {'disksUsage': disks, 'diskMapping': mapping}
