def get_disk_ref_cnt(objstore, conn, path):
try:
with objstore as session:
try:
ref_cnt = session.get('storagevolume', path)['ref_cnt']
except NotFoundError:
kimchi_log.info('Volume %s not found in obj store.' % path)
ref_cnt = 0
# try to find this volume in existing vm
vms_list = VMsModel.get_vms(conn)
for vm in vms_list:
dom = VMModel.get_vm(vm, conn)
storages = get_vm_disks(dom)
for disk in storages.keys():
d_info = get_vm_disk_info(dom, disk)
if path == d_info['path']:
ref_cnt = ref_cnt + 1
try:
session.store('storagevolume', path, {'ref_cnt': ref_cnt})
except Exception as e:
# Let the exception be raised. If we allow disks'
# ref_cnts to be out of sync, data corruption could
# occour if a disk is added to two guests
# unknowingly.
kimchi_log.error(
'Unable to store storage volume id in'
' objectstore due error: %s', e.message)
raise OperationFailed('KCHVOL0017E', {'err': e.message})
except Exception as e:
# This exception is going to catch errors returned by 'with',
# specially ones generated by 'session.store'. It is outside
# to avoid conflict with the __exit__ function of 'with'
raise OperationFailed('KCHVOL0017E', {'err': e.message})
return ref_cnt
def __exit__(self, type, value, tb):
self._lock.release()
if type is not None and issubclass(type, sqlite3.DatabaseError):
# Logs the error and return False, which makes __exit__ raise
# exception again
kimchi_log.error(traceback.format_exc())
return False
def start(self, params=None):
cmd = ['systemctl', 'start', 'sepctl']
output, error, rc = run_command(cmd)
if rc != 0:
kimchi_log.error('SEP service initialization error: %s - %s - %s'
% (cmd, rc, error))
raise OperationFailed('GINSEP0008E', {'error': error})
def parse_hdds(temperature_unit):
# hddtemp will strangely convert a non-number (see error case
# below) to 32 deg F. So just always ask for C and convert later.
out, error, rc = run_command(['hddtemp'])
if rc:
kimchi_log.error("Error retrieving HD temperatures: rc %s."
"output: %s" % (rc, error))
return None
hdds = OrderedDict()
for hdd in out.splitlines():
hdd_name = ''
hdd_temp = 0.0
try:
hdd_items = hdd.split(':')
hdd_name, hdd_temp = hdd_items[0], hdd_items[2]
hdd_temp = re.sub('°[C|F]', '', hdd_temp).strip()
except Exception as e:
kimchi_log.error('Sensors hdd parse error: %s' % e.message)
continue
try:
# Try to convert the number to a float. If it fails,
# don't add this disk to the list.
hdd_temp = float(hdd_temp)
if(temperature_unit == 'F'):
hdd_temp = 9.0/5.0 * hdd_temp + 32
hdds[hdd_name] = hdd_temp
except ValueError:
# If no sensor data, parse float will fail. For example:
# "/dev/sda: IBM IPR-10 5D831200: S.M.A.R.T. not available"
kimchi_log.warning("Sensors hdd: %s" % hdd)
hdds['unit'] = temperature_unit
return hdds
def stop(self, params=None):
cmd = ['systemctl', 'stop', 'sepctl']
output, error, rc = run_command(cmd)
if rc != 0:
kimchi_log.error('Error stopping SEP service: %s - %s - %s' % (cmd,
rc, error))
raise OperationFailed('GINSEP0009E', {'error': error})
def get_iommu_group(dev_info):
# Find out the iommu group of a given device.
# Child device belongs to the same iommu group as the parent device.
try:
return dev_info['iommuGroup']
except KeyError:
pass
parent = dev_info['parent']
while parent is not None:
try:
parent_info = dev_dict[parent]
except KeyError:
kimchi_log.error("Parent %s of device %s does not exist",
parent, dev_info['name'])
break
try:
iommuGroup = parent_info['iommuGroup']
except KeyError:
pass
else:
return iommuGroup
parent = parent_info['parent']
return None
def parse_hdds(temperature_unit):
# hddtemp will strangely convert a non-number (see error case
# below) to 32 deg F. So just always ask for C and convert later.
out, error, rc = run_command(['hddtemp'])
if rc:
kimchi_log.error("Error retrieving HD temperatures: rc %s."
"output: %s" % (rc, error))
return None
hdds = OrderedDict()
for hdd in out.splitlines():
hdd_name = ''
hdd_temp = 0.0
try:
hdd_items = hdd.split(':')
hdd_name, hdd_temp = hdd_items[0], hdd_items[2]
hdd_temp = re.sub('°[C|F]', '', hdd_temp).strip()
except Exception as e:
kimchi_log.error('Sensors hdd parse error: %s' % e.message)
continue
try:
# Try to convert the number to a float. If it fails,
# don't add this disk to the list.
hdd_temp = float(hdd_temp)
if (temperature_unit == 'F'):
hdd_temp = 9.0 / 5.0 * hdd_temp + 32
hdds[hdd_name] = hdd_temp
except ValueError:
# If no sensor data, parse float will fail. For example:
# "/dev/sda: IBM IPR-10 5D831200: S.M.A.R.T. not available"
kimchi_log.warning("Sensors hdd: %s" % hdd)
hdds['unit'] = temperature_unit
return hdds
def delete(self, name):
conn = self.conn.get()
dom = self.get_vm(name, self.conn)
self._vmscreenshot_delete(dom.UUIDString())
paths = self._vm_get_disk_paths(dom)
info = self.lookup(name)
if info['state'] == 'running':
self.poweroff(name)
try:
dom.undefine()
except libvirt.libvirtError as e:
raise OperationFailed("KCHVM0021E",
{'name': name, 'err': e.get_error_message()})
for path in paths:
vol = conn.storageVolLookupByPath(path)
pool = vol.storagePoolLookupByVolume()
xml = pool.XMLDesc(0)
pool_type = xpath_get_text(xml, "/pool/@type")[0]
if pool_type not in READONLY_POOL_TYPE:
vol.delete(0)
try:
with self.objstore as session:
session.delete('vm', dom.UUIDString(), ignore_missing=True)
except Exception as e:
# It is possible to delete vm without delete its database info
kimchi_log.error('Error deleting vm information from database: '
'%s', e.message)
vnc.remove_proxy_token(name)
def _default_network_check(self):
def create_defautl_network():
try:
subnet = self._get_available_address(knetwork.DefaultNetsPool)
params = {"name": "default", "connection": "nat",
"subnet": subnet}
self.create(params)
return conn.networkLookupByName("default")
except Exception as e:
kimchi_log.error("Fatal: Cannot create default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
conn = self.conn.get()
try:
net = conn.networkLookupByName("default")
except libvirt.libvirtError:
net = create_defautl_network()
if net.isActive() == 0:
try:
net.create()
except libvirt.libvirtError as e:
# FIXME we can not distinguish this error from other internal
# error by error code.
if ("network is already in use by interface"
in e.message.lower()):
# libvirt do not support update IP element, so delete the
# the network and create new one.
net.undefine()
create_defautl_network()
else:
kimchi_log.error("Fatal: Cannot activate default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
def _get_subscriber(self):
activation_info = []
entry = {}
cmd = ['/opt/ibm/seprovider/bin/getSubscriber']
output, error, rc = run_command(cmd)
# no subscriber: return empty
if rc == 1:
return activation_info
# error: report
if rc != 0:
kimchi_log.error('SEP execution error: %s - %s - %s' % (cmd, rc,
error))
raise OperationFailed('GINSEP0007E')
if len(output) > 1:
# iterate over lines and parse to dict
for line in output.splitlines():
if len(line) > 0:
entry = SUBSCRIBER.search(line).groupdict()
activation_info.append(entry["hostname"])
return activation_info
def get_dev_info(node_dev):
''' Parse the node device XML string into dict according to
http://libvirt.org/formatnode.html.
scsi_generic is not documented in libvirt official website. Try to
parse scsi_generic according to the following libvirt path series.
https://www.redhat.com/archives/libvir-list/2013-June/msg00014.html
scsi_target is not documented in libvirt official website. Try to
parse scsi_target according to the libvirt commit db19834a0a.
'''
xmlstr = node_dev.XMLDesc(0)
info = dictize(xmlstr)['device']
dev_type = info['capability'].pop('type')
info['device_type'] = dev_type
cap_dict = info.pop('capability')
info.update(cap_dict)
# parent device not found: set as None
info["parent"] = info.get("parent")
if dev_type in ('scsi', 'scsi_generic', 'scsi_target', 'system', 'usb'):
return info
if dev_type in ('net', 'pci', 'scsi_host', 'storage', 'usb_device'):
return globals()['_get_%s_dev_info' % dev_type](info)
kimchi_log.error("Unknown device type: %s", dev_type)
return info
def wrapper(*args, **kwargs):
try:
ret = f(*args, **kwargs)
if isinstance(ret, self.wrappables):
for name in dir(ret):
method = getattr(ret, name)
if callable(method) and not name.startswith('_'):
setattr(ret, name, wrapMethod(method))
return ret
except libvirt.libvirtError as e:
edom = e.get_error_domain()
ecode = e.get_error_code()
EDOMAINS = (libvirt.VIR_FROM_REMOTE,
libvirt.VIR_FROM_RPC)
ECODES = (libvirt.VIR_ERR_SYSTEM_ERROR,
libvirt.VIR_ERR_INTERNAL_ERROR,
libvirt.VIR_ERR_NO_CONNECT,
libvirt.VIR_ERR_INVALID_CONN)
if edom in EDOMAINS and ecode in ECODES:
kimchi_log.error('Connection to libvirt broken. '
'Recycling. ecode: %d edom: %d' %
(ecode, edom))
with self._connectionLock:
self._connections[conn_id] = None
raise
def lookup(self, subscription):
"""
Returns a dictionary with all SEP information.
"""
cmd = ['/opt/ibm/seprovider/bin/getSubscriber']
output, error, rc = run_command(cmd)
# error: report
if rc != 0:
kimchi_log.error('SEP execution error: %s - %s - %s' % (cmd, rc,
error))
raise OperationFailed('GINSEP0005E', {'error': error})
if len(output) > 1:
# iterate over lines and parse to dict
for line in output.splitlines():
if len(line) > 0:
entry = SUBSCRIBER.search(line).groupdict()
# subscriber found
if entry["hostname"] == subscription:
return entry
raise NotFoundError("GINSEP0006E", {'hostname': subscription})
def _default_network_check(self):
def create_default_network():
try:
subnet = self._get_available_address(knetwork.DefaultNetsPool)
params = {"name": "default", "connection": "nat",
"subnet": subnet}
self.create(params)
return conn.networkLookupByName("default")
except Exception as e:
kimchi_log.error("Fatal: Cannot create default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
conn = self.conn.get()
try:
net = conn.networkLookupByName("default")
except libvirt.libvirtError:
net = create_default_network()
if net.isActive() == 0:
try:
net.create()
except libvirt.libvirtError as e:
# FIXME we can not distinguish this error from other internal
# error by error code.
if ("network is already in use by interface"
in e.message.lower()):
# libvirt do not support update IP element, so delete the
# the network and create new one.
net.undefine()
create_default_network()
else:
kimchi_log.error("Fatal: Cannot activate default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
def _update_lvm_disks(self, pool_name, disks):
# check if all the disks/partitions exists in the host
for disk in disks:
lsblk_cmd = ['lsblk', disk]
output, error, returncode = run_command(lsblk_cmd)
if returncode != 0:
kimchi_log.error(
'%s is not a valid disk/partition. Could not '
'add it to the pool %s.', disk, pool_name)
raise OperationFailed('KCHPOOL0027E', {
'disk': disk,
'pool': pool_name
})
# add disks to the lvm pool using vgextend + virsh refresh
vgextend_cmd = ["vgextend", pool_name]
vgextend_cmd += disks
output, error, returncode = run_command(vgextend_cmd)
if returncode != 0:
msg = "Could not add disks to pool %s, error: %s"
kimchi_log.error(msg, pool_name, error)
raise OperationFailed('KCHPOOL0028E', {
'pool': pool_name,
'err': error
})
# refreshing pool state
pool = self.get_storagepool(pool_name, self.conn)
if pool.isActive():
pool.refresh(0)
def update(self, name, params):
"""
Update/add a subscription machine at IBM SEP tool.
"""
# check if the hostname to update is the same of the current
# subscription and unsubscribe it if not - we are working with
# only one subscription at the moment.
if ((self._activation_info['hostname'] != '') and
(params['hostname'] != self._activation_info['hostname'])):
cmd = ['/opt/ibm/seprovider/bin/unsubscribe',
'-h', self._activation_info['hostname']]
output, error, rc = run_command(cmd)
if rc != 0:
kimchi_log.error('SEP execution error: %s - %s - %s' % (cmd,
rc, error))
raise OperationFailed('GINSEP0004E', {'cmd': cmd, 'rc': rc,
'error': error})
# update the current subscription info, or add a new one.
cmd = ['/opt/ibm/seprovider/bin/subscribe',
'-h', params['hostname'],
'-p', params['port'],
'-c', params['community']]
output, error, rc = run_command(cmd)
if rc != 0:
kimchi_log.error('SEP execution error: %s - %s - %s' % (cmd, rc,
error))
raise OperationFailed('GINSEP0004E', {'cmd': cmd, 'rc': rc,
'error': error})
self._sep_status = 'running'
def update(self, name, params):
if detect_live_vm():
kimchi_log.error('Cannot update system fw while running VMs.')
raise OperationFailed('GINFW0001E')
fw_path = params['path']
pow_ok = params.get('overwrite-perm-ok', True)
# First unpack the rpm to get the fw img file
# FIXME: When there's a .deb package available, add support for that
command = ['rpm', '-U', '--force', '--ignoreos', fw_path]
output, error, rc = run_command(command)
if rc:
# rpm returns num failed pkgs on failure or neg for unknown
raise OperationFailed('GINFW0002E', {'rc': rc, 'err': error})
# The image file should now be in /tmp/fwupdate/
# and match the rpm name.
image_file, ext = os.path.splitext(os.path.basename(fw_path))
if image_file is None:
kimchi_log.error('FW update failed: '
'No image file found in the package file.')
raise OperationFailed('GINFW0003E')
command = ['update_flash', '-f',
os.path.join('/tmp/fwupdate', '%s.img' % image_file)]
if not pow_ok:
command.insert(1, '-n')
kimchi_log.info('FW update: System will reboot to flash the firmware.')
output, error, rc = run_command(command)
if rc:
raise OperationFailed('GINFW0004E', {'rc': rc})
def update(self, name, params):
if detect_live_vm():
kimchi_log.error('Cannot update system fw while running VMs.')
raise OperationFailed('GINFW0001E')
fw_path = params['path']
pow_ok = params.get('overwrite-perm-ok', True)
# First unpack the rpm to get the fw img file
# FIXME: When there's a .deb package available, add support for that
command = ['rpm', '-U', '--force', '--ignoreos', fw_path]
output, error, rc = run_command(command)
if rc:
# rpm returns num failed pkgs on failure or neg for unknown
raise OperationFailed('GINFW0002E', {'rc': rc, 'err': error})
# The image file should now be in /tmp/fwupdate/
# and match the rpm name.
image_file, ext = os.path.splitext(os.path.basename(fw_path))
if image_file is None:
kimchi_log.error('FW update failed: '
'No image file found in the package file.')
raise OperationFailed('GINFW0003E')
command = [
'update_flash', '-f',
os.path.join('/tmp/fwupdate', '%s.img' % image_file)
]
if not pow_ok:
command.insert(1, '-n')
kimchi_log.info('FW update: System will reboot to flash the firmware.')
output, error, rc = run_command(command)
if rc:
raise OperationFailed('GINFW0004E', {'rc': rc})
def delete(self, name):
conn = self.conn.get()
dom = self.get_vm(name, self.conn)
self._vmscreenshot_delete(dom.UUIDString())
paths = self._vm_get_disk_paths(dom)
info = self.lookup(name)
if info['state'] == 'running':
self.poweroff(name)
try:
dom.undefine()
except libvirt.libvirtError as e:
raise OperationFailed("KCHVM0021E", {
'name': name,
'err': e.get_error_message()
})
for path in paths:
vol = conn.storageVolLookupByPath(path)
pool = vol.storagePoolLookupByVolume()
xml = pool.XMLDesc(0)
pool_type = xmlutils.xpath_get_text(xml, "/pool/@type")[0]
if pool_type not in READONLY_POOL_TYPE:
vol.delete(0)
try:
with self.objstore as session:
session.delete('vm', dom.UUIDString(), ignore_missing=True)
except Exception as e:
# It is possible to delete vm without delete its database info
kimchi_log.error(
'Error deleting vm information from database: '
'%s', e.message)
vnc.remove_proxy_token(name)
def delete(self, vm_name, dev_name):
try:
bus_type = self.lookup(vm_name, dev_name)['bus']
dom = VMModel.get_vm(vm_name, self.conn)
except NotFoundError:
raise
if (bus_type not in HOTPLUG_TYPE and
DOM_STATE_MAP[dom.info()[0]] != 'shutoff'):
raise InvalidOperation('KCHVMSTOR0011E')
try:
disk = get_device_node(dom, dev_name)
path = get_vm_disk_info(dom, dev_name)['path']
if path is None or len(path) < 1:
path = self.lookup(vm_name, dev_name)['path']
# This has to be done before it's detached. If it wasn't
# in the obj store, its ref count would have been updated
# by get_disk_used_by()
if path is not None:
used_by = get_disk_used_by(self.objstore, self.conn, path)
else:
kimchi_log.error("Unable to decrement volume used_by on"
" delete because no path could be found.")
dom.detachDeviceFlags(etree.tostring(disk),
get_vm_config_flag(dom, 'all'))
except Exception as e:
raise OperationFailed("KCHVMSTOR0010E", {'error': e.message})
if used_by is not None and vm_name in used_by:
used_by.remove(vm_name)
set_disk_used_by(self.objstore, path, used_by)
else:
kimchi_log.error("Unable to update %s:%s used_by on delete."
% (vm_name, dev_name))
def __exit__(self, type, value, tb):
self._lock.release()
if type is not None and issubclass(type, sqlite3.DatabaseError):
# Logs the error and return False, which makes __exit__ raise
# exception again
kimchi_log.error(traceback.format_exc())
return False
def _peer_deregister(self):
cmd = ["slptool", "deregister",
"service:kimchid://%s" % self.url]
out, error, ret = run_command(cmd)
if out and len(out) != 0:
kimchi_log.error("Unable to deregister server on openSLP."
" Details: %s" % out)
def _generate_thumbnail(self):
thumbnail = os.path.join(config.get_screenshot_path(), '%s-%s.png' %
(self.vm_uuid, str(uuid.uuid4())))
self._get_test_result()
if stream_test_result is None:
self._watch_stream_creation(thumbnail)
elif stream_test_result:
try:
self._generate_scratch(thumbnail)
except:
kimchi_log.error("screenshot_creation: Unable to create "
"screenshot image %s." % thumbnail)
else:
self._create_black_image(thumbnail)
if os.path.getsize(thumbnail) == 0:
self._create_black_image(thumbnail)
else:
im = Image.open(thumbnail)
try:
# Prevent Image lib from lazy load,
# work around pic truncate validation in thumbnail generation
im.thumbnail(self.THUMBNAIL_SIZE)
except Exception as e:
kimchi_log.warning("Image load with warning: %s." % e)
im.save(thumbnail, "PNG")
self.info['thumbnail'] = thumbnail
def _generate_thumbnail(self):
thumbnail = os.path.join(
config.get_screenshot_path(),
'%s-%s.png' % (self.vm_uuid, str(uuid.uuid4())))
self._get_test_result()
if stream_test_result is None:
self._watch_stream_creation(thumbnail)
elif stream_test_result:
try:
self._generate_scratch(thumbnail)
except:
kimchi_log.error("screenshot_creation: Unable to create "
"screenshot image %s." % thumbnail)
else:
self._create_black_image(thumbnail)
if os.path.getsize(thumbnail) == 0:
self._create_black_image(thumbnail)
else:
im = Image.open(thumbnail)
try:
# Prevent Image lib from lazy load,
# work around pic truncate validation in thumbnail generation
im.thumbnail(self.THUMBNAIL_SIZE)
except Exception as e:
kimchi_log.warning("Image load with warning: %s." % e)
im.save(thumbnail, "PNG")
self.info['thumbnail'] = thumbnail
def sosreport_generate(cb, name):
try:
command = ['sosreport', '--batch', '--name=%s' % name]
output, error, retcode = run_command(command)
if retcode < 0:
raise OperationFailed("KCHDR0003E", {'name': name,
'err': retcode})
elif retcode > 0:
raise OperationFailed("KCHDR0003E", {'name': name,
'err': retcode})
# SOSREPORT might create file in /tmp or /var/tmp
# FIXME: The right way should be passing the tar.xz file directory
# though the parameter '--tmp-dir', but it is failing in Fedora 20
patterns = ['/tmp/sosreport-%s-*', '/var/tmp/sosreport-%s-*']
reports = []
reportFile = None
for p in patterns:
reports = reports + [f for f in glob.glob(p % name)]
for f in reports:
if not fnmatch.fnmatch(f, '*.md5'):
reportFile = f
break
# Some error in sosreport happened
if reportFile is None:
kimchi_log.error('Debug report file not found. See sosreport '
'output for detail:\n%s', output)
fname = (patterns[0] % name).split('/')[-1]
raise OperationFailed('KCHDR0004E', {'name': fname})
md5_report_file = reportFile + '.md5'
report_file_extension = '.' + reportFile.split('.', 1)[1]
path = config.get_debugreports_path()
target = os.path.join(path, name + report_file_extension)
# Moving report
msg = 'Moving debug report file "%s" to "%s"' % (reportFile,
target)
kimchi_log.info(msg)
shutil.move(reportFile, target)
# Deleting md5
msg = 'Deleting report md5 file: "%s"' % (md5_report_file)
kimchi_log.info(msg)
md5 = open(md5_report_file).read().strip()
kimchi_log.info('Md5 file content: "%s"', md5)
os.remove(md5_report_file)
cb('OK', True)
return
except OSError:
raise
except Exception, e:
# No need to call cb to update the task status here.
# The task object will catch the exception rasied here
# and update the task status there
log = logging.getLogger('Model')
log.warning('Exception in generating debug file: %s', e)
raise OperationFailed("KCHDR0005E", {'name': name, 'err': e})
def _attach_pci_device(self, vmid, dev_info):
self._validate_pci_passthrough_env()
dom = VMModel.get_vm(vmid, self.conn)
# Due to libvirt limitation, we don't support live assigne device to
# vfio driver.
driver = ('vfio' if DOM_STATE_MAP[dom.info()[0]] == "shutoff"
and self.caps.kernel_vfio else 'kvm')
# on powerkvm systems it must be vfio driver.
distro, _, _ = platform.linux_distribution()
if distro == 'IBM_PowerKVM':
driver = 'vfio'
# Attach all PCI devices in the same IOMMU group
dev_model = DeviceModel(conn=self.conn)
devs_model = DevicesModel(conn=self.conn)
affected_names = devs_model.get_list(
_passthrough_affected_by=dev_info['name'])
passthrough_names = devs_model.get_list(_cap='pci',
_passthrough='true')
group_names = list(set(affected_names) & set(passthrough_names))
pci_infos = [dev_model.lookup(dev_name) for dev_name in group_names]
pci_infos.append(dev_info)
# all devices in the group that is going to be attached to the vm
# must be detached from the host first
with RollbackContext() as rollback:
for pci_info in pci_infos:
try:
dev = self.conn.get().nodeDeviceLookupByName(
pci_info['name'])
dev.dettach()
except Exception:
raise OperationFailed('KCHVMHDEV0005E',
{'name': pci_info['name']})
else:
rollback.prependDefer(dev.reAttach)
rollback.commitAll()
device_flags = get_vm_config_flag(dom, mode='all')
with RollbackContext() as rollback:
for pci_info in pci_infos:
pci_info['detach_driver'] = driver
xmlstr = self._get_pci_device_xml(pci_info)
try:
dom.attachDeviceFlags(xmlstr, device_flags)
except libvirt.libvirtError:
kimchi_log.error(
'Failed to attach host device %s to VM %s: \n%s',
pci_info['name'], vmid, xmlstr)
raise
rollback.prependDefer(dom.detachDeviceFlags, xmlstr,
device_flags)
rollback.commitAll()
return dev_info['name']
def _attach_pci_device(self, vmid, dev_info):
self._validate_pci_passthrough_env()
dom = VMModel.get_vm(vmid, self.conn)
# Due to libvirt limitation, we don't support live assigne device to
# vfio driver.
driver = ('vfio' if DOM_STATE_MAP[dom.info()[0]] == "shutoff" and
self.caps.kernel_vfio else 'kvm')
# on powerkvm systems it must be vfio driver.
distro, _, _ = platform.linux_distribution()
if distro == 'IBM_PowerKVM':
driver = 'vfio'
# Attach all PCI devices in the same IOMMU group
dev_model = DeviceModel(conn=self.conn)
devs_model = DevicesModel(conn=self.conn)
affected_names = devs_model.get_list(
_passthrough_affected_by=dev_info['name'])
passthrough_names = devs_model.get_list(
_cap='pci', _passthrough='true')
group_names = list(set(affected_names) & set(passthrough_names))
pci_infos = [dev_model.lookup(dev_name) for dev_name in group_names]
pci_infos.append(dev_info)
# all devices in the group that is going to be attached to the vm
# must be detached from the host first
with RollbackContext() as rollback:
for pci_info in pci_infos:
try:
dev = self.conn.get().nodeDeviceLookupByName(
pci_info['name'])
dev.dettach()
except Exception:
raise OperationFailed('KCHVMHDEV0005E',
{'name': pci_info['name']})
else:
rollback.prependDefer(dev.reAttach)
rollback.commitAll()
device_flags = get_vm_config_flag(dom, mode='all')
with RollbackContext() as rollback:
for pci_info in pci_infos:
pci_info['detach_driver'] = driver
xmlstr = self._get_pci_device_xml(pci_info)
try:
dom.attachDeviceFlags(xmlstr, device_flags)
except libvirt.libvirtError:
kimchi_log.error(
'Failed to attach host device %s to VM %s: \n%s',
pci_info['name'], vmid, xmlstr)
raise
rollback.prependDefer(dom.detachDeviceFlags,
xmlstr, device_flags)
rollback.commitAll()
return dev_info['name']
def lookup(self, params=None):
output, error, rc = run_command('lsmcode')
if rc:
kimchi_log.error('Unable to retreive firmware level.')
return {'level': 'Unknown'}
# Cut out the chatter from the command output
levels = output.split()[5:]
levels = " ".join(levels)
return {'level': levels}
def stop(self, params=None):
cmd = ['/opt/ibm/seprovider/bin/sepcli', 'stop']
output, error, rc = run_command(cmd)
if rc != 10:
kimchi_log.error('SEP execution error: %s - %s - %s' % (cmd, rc,
error))
raise OperationFailed('GINSEP0004E', {'cmd': cmd, 'rc': rc,
'error': error})
self._sep_status = 'not running'
def lookup(self, params=None):
output, error, rc = run_command('lsmcode')
if rc:
kimchi_log.error('Unable to retreive firmware level.')
return {'level': 'Unknown'}
# Cut out the chatter from the command output
levels = output.split()[5:]
levels = " ".join(levels)
return {'level': levels}
def _create_archive_dir(cls):
try:
os.makedirs(cls._archive_dir)
except OSError as e:
# It's OK if archive_dir already exists
if e.errno != errno.EEXIST:
kimchi_log.error('Error creating archive dir %s: %s',
cls._archive_dir, e)
raise OperationFailed('GINHBK0003E', {'dir': cls._archive_dir})
def _create_archive_dir(cls):
try:
os.makedirs(cls._archive_dir)
except OSError as e:
# It's OK if archive_dir already exists
if e.errno != errno.EEXIST:
kimchi_log.error('Error creating archive dir %s: %s',
cls._archive_dir, e)
raise OperationFailed('GINHBK0003E',
{'dir': cls._archive_dir})
def create_defautl_network():
try:
subnet = self._get_available_address(knetwork.DefaultNetsPool)
params = {"name": "default", "connection": "nat",
"subnet": subnet}
self.create(params)
return conn.networkLookupByName("default")
except Exception as e:
kimchi_log.error("Fatal: Cannot create default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
def _add_user_to_sudoers(self, user):
try:
# Creates the file in /etc/sudoers.d with proper user permission
with open(SUDOERS_FILE % user, 'w') as f:
f.write(SUDOERS_LINE % user)
os.chmod(SUDOERS_FILE % user, 0440)
except Exception as e:
UserModel().delete(user)
kimchi_log.error('Could not add user %s to sudoers: %s',
user, e.message)
raise OperationFailed('GINUSER0007E', {'user': user})
def wait_task(task_lookup, taskid, timeout=10):
for i in range(0, timeout):
task_info = task_lookup(taskid)
if task_info['status'] == "running":
kimchi_log.info("Waiting task %s, message: %s", taskid,
task_info['message'])
time.sleep(1)
else:
return
kimchi_log.error("Timeout while process long-run task, "
"try to increase timeout value.")
def _add_user_to_kvm_group(self, adm, user):
# Add new user to KVM group
kvmgrp = adm.lookupGroupByName('kvm')
kvmgrp.add('gr_mem', user)
ret = adm.modifyGroup(kvmgrp)
if ret != 1:
UserModel().delete(user)
msg = ('Could not add user %s to kvm group. Operation failed.'
% user)
kimchi_log.error(msg)
raise OperationFailed('GINUSER0006E', {'user': user})
def _create_task(self, cb, params):
"""
params: A dict with the following values:
- vm_uuid: The UUID of the VM being created
- template: The template being used to create the VM
- name: The name for the new VM
"""
vm_uuid = str(uuid.uuid4())
t = params['template']
name = params['name']
conn = self.conn.get()
cb('Storing VM icon')
# Store the icon for displaying later
icon = t.info.get('icon')
if icon:
try:
with self.objstore as session:
session.store('vm', vm_uuid, {'icon': icon})
except Exception as e:
# It is possible to continue Kimchi executions without store
# vm icon info
kimchi_log.error('Error trying to update database with guest '
'icon information due error: %s', e.message)
# If storagepool is SCSI, volumes will be LUNs and must be passed by
# the user from UI or manually.
cb('Provisioning storage for new VM')
vol_list = []
if t._get_storage_type() not in ["iscsi", "scsi"]:
vol_list = t.fork_vm_storage(vm_uuid)
graphics = params.get('graphics', {})
stream_protocols = self.caps.libvirt_stream_protocols
xml = t.to_vm_xml(name, vm_uuid,
libvirt_stream_protocols=stream_protocols,
graphics=graphics,
volumes=vol_list)
cb('Defining new VM')
try:
conn.defineXML(xml.encode('utf-8'))
except libvirt.libvirtError as e:
if t._get_storage_type() not in READONLY_POOL_TYPE:
for v in vol_list:
vol = conn.storageVolLookupByPath(v['path'])
vol.delete(0)
raise OperationFailed("KCHVM0007E", {'name': name,
'err': e.get_error_message()})
cb('Updating VM metadata')
VMModel.vm_update_os_metadata(VMModel.get_vm(name, self.conn), t.info,
self.caps.metadata_support)
cb('OK', True)
def update(self, profile, params):
if params['active'] and self.active_powerprofile != profile:
self.active_powerprofile = profile
tuned_cmd = ["tuned-adm", "profile", profile]
output, error, returncode = run_command(tuned_cmd)
if returncode != 0:
kimchi_log.error('Could not activate power profile %s, '
'error: %s', powerprofile, error)
raise OperationFailed('Error while activating power '
'saving profile %s.', powerprofile)
return profile
def libvirt_supports_iso_stream(conn, protocol):
domain_type = 'test' if conn.getType().lower() == 'test' else 'kvm'
xml = ISO_STREAM_XML % {'domain': domain_type, 'protocol': protocol}
try:
FeatureTests.disable_libvirt_error_logging()
dom = conn.defineXML(xml)
dom.undefine()
return True
except libvirt.libvirtError, e:
kimchi_log.error(e.message)
return False
def create_default_network():
try:
subnet = self._get_available_address(knetwork.DefaultNetsPool)
params = {"name": "default", "connection": "nat",
"subnet": subnet}
self.create(params)
return conn.networkLookupByName("default")
except Exception as e:
kimchi_log.error("Fatal: Cannot create default network "
"because of %s, exit kimchid", e.message)
sys.exit(1)
def _add_user_to_sudoers(self, user):
try:
# Creates the file in /etc/sudoers.d with proper user permission
with open(SUDOERS_FILE % user, 'w') as f:
f.write(SUDOERS_LINE % user)
os.chmod(SUDOERS_FILE % user, 0440)
except Exception as e:
UserModel().delete(user)
kimchi_log.error('Could not add user %s to sudoers: %s',
user, e.message)
raise OperationFailed('GINUSER0007E', {'user': user})
def _add_user_to_kvm_group(self, adm, user):
# Add new user to KVM group
kvmgrp = adm.lookupGroupByName('kvm')
kvmgrp.add('gr_mem', user)
ret = adm.modifyGroup(kvmgrp)
if ret != 1:
UserModel().delete(user)
msg = ('Could not add user %s to kvm group. Operation failed.' %
user)
kimchi_log.error(msg)
raise OperationFailed('GINUSER0006E', {'user': user})
def _qemu_support_spice(self):
qemu_path = find_qemu_binary(find_emulator=True)
out, err, rc = run_command(['ldd', qemu_path])
if rc != 0:
kimchi_log.error('Failed to find qemu binary dependencies: %s',
err)
return False
for line in out.split('\n'):
if line.lstrip().startswith('libspice-server.so'):
return True
return False
def wait_task(task_lookup, taskid, timeout=10):
for i in range(0, timeout):
task_info = task_lookup(taskid)
if task_info['status'] == "running":
kimchi_log.info("Waiting task %s, message: %s",
taskid, task_info['message'])
time.sleep(1)
else:
return
kimchi_log.error("Timeout while process long-run task, "
"try to increase timeout value.")
def update(self, powerprofile, params):
if params['active'] and self.active_powerprofile != powerprofile:
self.active_powerprofile = powerprofile
tuned_cmd = ["tuned-adm", "profile", powerprofile]
output, error, returncode = run_command(tuned_cmd)
if returncode != 0:
kimchi_log.error('Could not activate power profile %s, '
'error: %s', powerprofile, error)
raise OperationFailed("GINPOWER004E",
{'profile': powerprofile})
return powerprofile
def delete_user(username):
adm = libuser.admin()
user_obj = adm.lookupUserByName(username)
if user_obj is None:
kimchi_log.error('User "%s" does not exist', username)
raise OperationFailed('GINUSER0011E', {'user': username})
try:
adm.deleteUser(user_obj, True, True)
except Exception as e:
kimchi_log.error('Could not delete user %s: %s', username, e)
raise OperationFailed('GINUSER0010E', {'user': username})
def update(self, powerprofile, params):
if params['active'] and self.active_powerprofile != powerprofile:
self.active_powerprofile = powerprofile
tuned_cmd = ["tuned-adm", "profile", powerprofile]
output, error, returncode = run_command(tuned_cmd)
if returncode != 0:
kimchi_log.error(
'Could not activate power profile %s, '
'error: %s', powerprofile, error)
raise OperationFailed("GINPOWER004E",
{'profile': powerprofile})
return powerprofile
def lookup(self, user):
try:
user_info = pwd.getpwnam(user)
except Exception:
kimchi_log.error('User "%s" does not exist', user)
raise OperationFailed('GINUSER0011E', {'user': user})
return {"name": user,
"uid": user_info.pw_uid,
"gid": user_info.pw_gid,
"group": grp.getgrgid(user_info.pw_gid).gr_name,
"profile": self._get_user_profile(user)}
def libvirt_supports_iso_stream(protocol):
xml = ISO_STREAM_XML % {'protocol': protocol}
conn = None
try:
FeatureTests.disable_screen_error_logging()
conn = libvirt.open('qemu:///system')
dom = conn.defineXML(xml)
dom.undefine()
return True
except libvirt.libvirtError, e:
kimchi_log.error(e.message)
return False
def _vmscreenshot_delete(self, vm_uuid):
screenshot = VMScreenshotModel.get_screenshot(vm_uuid, self.objstore,
self.conn)
screenshot.delete()
try:
with self.objstore as session:
session.delete('screenshot', vm_uuid)
except Exception as e:
# It is possible to continue Kimchi executions without delete
# screenshots
kimchi_log.error('Error trying to delete vm screenshot from '
'database due error: %s', e.message)
def _is_dev_leaf(devNodePath):
try:
# By default, lsblk prints a device information followed by children
# device information
childrenCount = len(_get_lsblk_devs(["NAME"], [devNodePath])) - 1
except OperationFailed as e:
# lsblk is known to fail on multipath devices
# Assume these devices contain children
kimchi_log.error("Error getting device info for %s: %s", devNodePath,
e)
return False
return childrenCount == 0
def update(self, powerprofile, params):
if params['active'] and self.active_powerprofile != powerprofile:
self.active_powerprofile = powerprofile
tuned_cmd = ["tuned-adm", "profile", powerprofile]
output, error, returncode = run_command(tuned_cmd)
if returncode != 0:
kimchi_log.error(
'Could not activate power profile %s, '
'error: %s', powerprofile, error)
raise OperationFailed(
'Error while activating power '
'saving profile %s.', powerprofile)
return powerprofile
def get_list(self):
if self.error is not None:
kimchi_log.error(self.error)
raise OperationFailed(self.error)
profiles = []
tuned_cmd = ["tuned-adm", "list"]
output, error, returncode = run_command(tuned_cmd)
lines_output = output.rstrip("\n").split("\n")
for line in lines_output:
if line.startswith('-'):
line = line.strip("- ")
profiles.append(line)
return profiles
