def make_drive(log, dom, irs, index, conf, block_info):
cfg = utils.picklecopy(conf)
cfg['index'] = index
cfg['path'] = '/{iface}/{index}'.format(
iface=cfg['iface'], index=cfg['index']
)
add_uuids(index, cfg)
if 'diskReplicate' in cfg:
add_uuids(index + REPLICA_BASE_INDEX, cfg['diskReplicate'])
drive = Drive(log, **cfg)
dom.block_info[drive.path] = utils.picklecopy(block_info)
if (drive.format == "raw" and
block_info["physical"] != block_info["capacity"]):
raise RuntimeError(
"Invalid test data - "
"raw disk capacity != physical: %s" % block_info)
irs.set_drive_size(drive, block_info['physical'])
return drive
def getGuestInfo(self):
# This is rather hacky, but for now we want to prefer information from
# oVirt GA over QEMU-GA
info = {
'username': '******',
'session': 'Unknown',
'memUsage': 0,
'guestCPUCount': -1,
'appsList': (),
'guestIPs': '',
'guestFQDN': ''}
diskMapping = {}
qga = self._qgaGuestInfo()
if qga is not None:
if 'diskMapping' in qga:
diskMapping.update(qga['diskMapping'])
del qga['diskMapping']
info.update(qga)
if self.isResponsive():
info.update(self.guestInfo)
diskMapping.update(self.oVirtGuestDiskMapping)
else:
if len(self.guestInfo['appsList']) > 0:
info['appsList'] = self.guestInfo['appsList']
if len(self.guestInfo['guestIPs']) > 0:
info['guestIPs'] = self.guestInfo['guestIPs']
if len(self.guestInfo['guestFQDN']) > 0:
info['guestFQDN'] = self.guestInfo['guestFQDN']
self.guestDiskMapping = diskMapping
return utils.picklecopy(info)
def getGuestInfo(self):
# Prefer information from QEMU GA if available. Fall-back to oVirt GA
# only for info that is not availble in QEMU GA.
info = {
'username': '******',
'session': 'Unknown',
'memUsage': 0,
'guestCPUCount': -1,
'appsList': (),
'guestIPs': '',
'guestFQDN': ''}
diskMapping = {}
if self.isResponsive():
info.update(self.guestInfo)
diskMapping.update(self.oVirtGuestDiskMapping)
else:
if len(self.guestInfo['appsList']) > 0:
info['appsList'] = self.guestInfo['appsList']
if len(self.guestInfo['guestIPs']) > 0:
info['guestIPs'] = self.guestInfo['guestIPs']
if len(self.guestInfo['guestFQDN']) > 0:
info['guestFQDN'] = self.guestInfo['guestFQDN']
qga = self._qgaGuestInfo()
if qga is not None:
if 'diskMapping' in qga:
diskMapping.update(qga['diskMapping'])
del qga['diskMapping']
if len(info['appsList']) > 0 and 'appsList' in qga:
# This is an exception since the entry from QEMU GA is faked.
# Prefer oVirt GA info if available. Take fake QEMU GA info
# only if the other is not available.
del qga['appsList']
info.update(qga)
self.guestDiskMapping = diskMapping
return utils.picklecopy(info)
def io_tune_update_list(tunables, changes):
"""
This method updates elements in a list of VmDiskDeviceTuneLimits
:param tunables: List of VmDiskDeviceTuneLimits to be updated
:param changes: List of VmDiskDeviceTuneLimits with changes
"""
indexByPath = {}
indexByName = {}
for id, tune in enumerate(tunables):
if "path" in tune:
indexByPath[tune["path"]] = id
if "name" in tune:
indexByName[tune["name"]] = id
for change in changes:
old_id = None
if ("name" in change and
change["name"] in indexByName):
old_id = indexByName[change["name"]]
elif ("path" in change and
change["path"] in indexByPath):
old_id = indexByPath[change["path"]]
if old_id is None:
new_tune = utils.picklecopy(change)
tunables.append(new_tune)
else:
old_tune = tunables[old_id]
new_tune = io_tune_merge(old_tune, change)
tunables[old_id] = new_tune
def _dump_device(md_obj, data, node_name=_DEVICE):
elems = []
data = utils.picklecopy(data)
for key in _IGNORED_KEYS:
data.pop(key, None)
for key in _DEVICE_SUBKEYS:
value = data.pop(key, {})
if not value and key in _NONEMPTY_KEYS:
# empty elements make no sense
continue
if key == _PORT_MIRRORING:
elems.append(_dump_port_mirroring(md_obj, value))
elif key == _REPLICA:
elems.append(_dump_device(md_obj, value, _REPLICA))
elif key in _LAYERED_KEYS:
elems.append(
_dump_layered(md_obj, key, _LAYERED_KEYS[key], value)
)
elif key == _SPEC_PARAMS:
elems.append(_dump_device_spec_params(md_obj, value))
elif key == _PAYLOAD:
elems.append(_dump_payload(md_obj, _PAYLOAD, value))
else:
elems.append(md_obj.dump(key, **value))
dev_elem = md_obj.dump(node_name, **data)
for elem in elems:
vmxml.append_child(dev_elem, etree_child=elem)
return dev_elem
def io_tune_merge(old, new):
"""
Merge two VmDiskDeviceTuneLimits structures in their dictionary form
and return the new iotune setting.
:param old: VmDiskDeviceTuneLimits in dict form
:param new: VmDiskDeviceTuneLimits in dict form
:return: old + new (in this order) in the dict form
"""
result = utils.picklecopy(old)
if "name" in new:
result["name"] = new["name"]
if "path" in new:
result["path"] = new["path"]
result.setdefault("maximum", {})
if "maximum" in new:
result["maximum"].update(new["maximum"])
result.setdefault("guaranteed", {})
if "guaranteed" in new:
result["guaranteed"].update(new["guaranteed"])
return result
def _collect(self, vm):
data = vm.status()
data['startTime'] = vm.start_time
if vm.lastStatus != vmstatus.DOWN:
guestInfo = vm.guestAgent.getGuestInfo()
data['username'] = guestInfo['username']
data['guestIPs'] = guestInfo['guestIPs']
data['guestFQDN'] = guestInfo['guestFQDN']
else:
data['username'] = ""
data['guestIPs'] = ""
data['guestFQDN'] = ""
if 'sysprepInf' in data:
del data['sysprepInf']
if 'floppy' in data:
del data['floppy']
for drive in data.get('drives', []):
for d in vm.getDiskDevices():
if isVdsmImage(d) and drive.get('volumeID') == d.volumeID:
drive['truesize'] = str(d.truesize)
drive['apparentsize'] = str(d.apparentsize)
data['_blockJobs'] = utils.picklecopy(
vm.conf.get('_blockJobs', {}))
return data
def _cmd_send(self, dispatcher, frame):
destination = frame.headers.get(stomp.Headers.DESTINATION, None)
if destination in self.request_queues:
# default subscription
self._handle_internal(dispatcher,
frame.headers.get(stomp.Headers.REPLY_TO),
frame.body)
return
else:
try:
subs = self._sub_dests[destination]
except KeyError:
self._send_error("Subscription not available",
dispatcher.connection)
return
if not subs:
self._send_error("Subscription not available",
dispatcher.connection)
return
for subscription in subs:
headers = utils.picklecopy(frame.headers)
headers = {stomp.Headers.SUBSCRIPTION: subscription.id}
headers.update(frame.headers)
res = stomp.Frame(
stomp.Command.MESSAGE,
headers,
frame.body
)
subscription.client.send_raw(res)
def device(self, **kwargs):
"""
Helper context manager to get and update the metadata of
a given device.
Any change performed to the device metadata is not committed
to the underlying libvirt.Domain until dump() is called.
:param dom: domain to access
:type dom: libvirt.Domain
kwargs: attributes to match to identify the device;
values are expected to be strings.
Example:
let's start with
dom.metadata() ->
<vm>
<device id="dev0">
<foo>bar</foo>
</device>
<device id="dev1">
<number type="int">42</number>
</device>
</vm>
let's run this code
md_desc = Descriptor('vm')
md_desc.load(dom)
with md_desc.device(id='dev0') as vm:
print(vm)
will emit
{
'foo': 'bar'
}
"""
dev_data = self._find_device(kwargs)
if dev_data is None:
dev_data = self._add_device(kwargs)
self._log.debug('device metadata: %s', dev_data)
data = utils.picklecopy(dev_data)
yield data
dev_data.clear()
dev_data.update(utils.picklecopy(data))
self._log.debug('device metadata updated: %s', dev_data)
def config(self):
"""
Return dictionary of constructor kwargs or None.
This is used to make a legacy device configuration for this instance.
Return None in case `update_device_info` already adds the legacy
configuration.
"""
return compat.device_config(utils.picklecopy(self._conf))
def _update_meta_params(params, meta):
for key in METADATA_KEYS:
if key in meta:
params[key] = meta[key]
for key in METADATA_NESTED_KEYS:
if key in meta:
params[key] = utils.picklecopy(meta[key])
core.update_device_params_from_meta(params, meta)
def getGuestInfo(self):
if self.isResponsive():
return utils.picklecopy(self.guestInfo)
else:
return {
'username': '******',
'session': 'Unknown',
'memUsage': 0,
'guestCPUCount': -1,
'appsList': self.guestInfo['appsList'],
'guestIPs': self.guestInfo['guestIPs'],
'guestFQDN': self.guestInfo['guestFQDN']}
def test_caps(self):
"""
Make sure the capabilities are stored properly and the returned
capabilities are stable.
"""
c1 = {
"version": "1.0",
"commands": ["foo", "bar"],
}
c2 = utils.picklecopy(c1)
c2["commands"].append("baz")
self.qga_poller.update_caps(self.vm.id, c1)
c3 = self.qga_poller.get_caps(self.vm.id)
self.qga_poller.update_caps(self.vm.id, c2)
self.assertEqual(c1, c3)
self.assertNotEqual(c2, c3)
def all_devices(self, **kwargs):
"""
Return all the devices which match the given attributes.
kwargs: each argument corresponds to a <device> attribute
name and the value (string) to the attribute value;
only devices having all the given values are returned.
:rtype: dict
Example:
let's start with
dom.metadata() ->
<vm>
<device kind="blah" id="dev0">
<foo>bar</foo>
</device>
<device kind="blah" id="dev1">
<number type="int">42</number>
</device>
</vm>
let's run this code
md_desc = Descriptor('vm')
md_desc.load(dom)
print [dev for dev in md_desc.all_devices(kind="blah")]
will emit
[{'foo': 'bar'}, {'number': 42}]
"""
for data in self._matching_devices(kwargs):
# A shallow copy ({}.copy) would have been enough.
# We need to support complex storage devices, hence
# we use picklecopy.
yield utils.picklecopy(data)
def wrapper(*args, **kwargs):
try:
logLevel = logging.DEBUG
suppress_logging = f.__name__ in ('getAllVmStats',)
# TODO: This password protection code is fragile and ugly. Password
# protection should be done in the wrapped methods, and logging
# shold be done in the next layers, similar to storage logs.
displayArgs = args
if f.__name__ == 'vmDesktopLogin':
if 'password' in kwargs:
raise TypeError("Got an unexpected keyword argument: "
"'password'")
if len(args) > 3:
displayArgs = args[:3] + ('****',) + args[4:]
elif f.__name__ == 'getExternalVMs':
if len(args) >= 3:
displayArgs = args[:2] + ('****',) + args[3:]
elif f.__name__ == 'getExternalVMNames':
if len(args) == 3:
displayArgs = args[:2] + ('****',)
elif f.__name__ == 'convertExternalVm':
if len(args) > 3:
displayArgs = args[:2] + ('****',) + args[3:]
elif f.__name__ == 'registerSecrets':
secrets = protect_passwords(utils.picklecopy(args[0]))
displayArgs = (secrets,) + args[1:]
elif f.__name__ == 'vmUpdateDevice':
if len(args) >= 2 and args[1].get(
'deviceType', '') == 'graphics':
params = protect_passwords(utils.picklecopy(args[1]))
displayArgs = (args[0],) + (params,) + args[2:]
# Logging current call
logStr = 'client [%s]::call %s with %s %s' % \
(getattr(f.__self__.cif.threadLocal, 'client', ''),
f.__name__, displayArgs, kwargs)
# if flowID exists
if getattr(f.__self__.cif.threadLocal, 'flowID', None) is not None:
logStr += " flowID [%s]" % f.__self__.cif.threadLocal.flowID
# Ready to show the log into vdsm.log
f.__self__.log.log(logLevel, logStr)
if f.__self__.cif.ready:
res = f(*args, **kwargs)
else:
res = errCode['recovery']
log_res = "(suppressed)" if suppress_logging else res
f.__self__.cif.log.log(logLevel, 'return %s with %s',
f.__name__, log_res)
return res
except libvirt.libvirtError as e:
f.__self__.cif.log.error("libvirt error", exc_info=True)
if e.get_error_code() == libvirt.VIR_ERR_NO_DOMAIN:
return errCode['noVM']
else:
return errCode['unexpected']
except VdsmException as e:
f.__self__.cif.log.error("vdsm exception occured", exc_info=True)
return e.response()
except:
f.__self__.cif.log.error("unexpected error", exc_info=True)
return errCode['unexpected']
def get_types(self):
return utils.picklecopy(self._types)
def get_methods(self):
return utils.picklecopy(self._methods)
def get_caps(self, vm_id):
with self._capabilities_lock:
# Return a copy so the caller has a stable representation
return utils.picklecopy(self._capabilities.get(vm_id, None))
def test_picklecopy_exact(self):
self.assertEqual(utils.picklecopy(VM_STATUS_DUMP),
copy.deepcopy(VM_STATUS_DUMP))
def get_guest_info(self, vm_id):
with self._guest_info_lock:
# Return a copy so the caller has a stable representation
return utils.picklecopy(self._guest_info.get(vm_id, None))
def get_guest_info(self, vm_id):
with self._guest_info_lock:
# Return a copy so the caller has a stable representation
return utils.picklecopy(self._guest_info.get(vm_id, None))
def update_metadata_from_object(data, dev_obj, keys):
for key in keys:
value = getattr(dev_obj, key, None)
if value is not None:
data[key] = utils.picklecopy(value)
def get_caps(self, vm_id):
with self._capabilities_lock:
# Return a copy so the caller has a stable representation
return utils.picklecopy(self._capabilities.get(vm_id, None))
def get_types(self):
return utils.picklecopy(self._types)
def update_metadata_from_object(data, dev_obj, keys):
for key in keys:
value = getattr(dev_obj, key, None)
if value is not None:
data[key] = utils.picklecopy(value)
def test_picklecopy_exact(self):
self.assertEqual(utils.picklecopy(VM_STATUS_DUMP),
copy.deepcopy(VM_STATUS_DUMP))
def get_methods(self):
return utils.picklecopy(self._methods)
