def get_disk_used_by(objstore, conn, path):
try:
with objstore as session:
try:
used_by = session.get("storagevolume", path)["used_by"]
except (KeyError, NotFoundError):
wok_log.info("Volume %s not found in obj store." % path)
used_by = []
# 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"]:
used_by.append(vm)
try:
session.store("storagevolume", path, {"used_by": used_by}, get_kimchi_version())
except Exception as e:
# Let the exception be raised. If we allow disks'
# used_by to be out of sync, data corruption could
# occour if a disk is added to two guests
# unknowingly.
wok_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 used_by
def get_disk_used_by(conn, path):
used_by = []
# 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']:
used_by.append(vm)
return used_by
def create(self, vm_name, params):
vol_model = None
# Path will never be blank due to API.json verification.
# There is no need to cover this case here.
if not ('vol' in params) ^ ('path' in params):
raise InvalidParameter("KCHVMSTOR0017E")
dom = VMModel.get_vm(vm_name, self.conn)
params['bus'] = _get_device_bus(params['type'], dom)
params['format'] = 'raw'
dev_list = [dev for dev, bus in get_vm_disks(dom).iteritems()
if bus == params['bus']]
dev_list.sort()
if len(dev_list) == 0:
params['index'] = 0
else:
char = dev_list.pop()[2]
params['index'] = string.ascii_lowercase.index(char) + 1
if (params['bus'] not in HOTPLUG_TYPE and
DOM_STATE_MAP[dom.info()[0]] != 'shutoff'):
raise InvalidOperation('KCHVMSTOR0011E')
if params.get('vol'):
try:
pool = params['pool']
vol_model = StorageVolumeModel(conn=self.conn,
objstore=self.objstore)
vol_info = vol_model.lookup(pool, params['vol'])
except KeyError:
raise InvalidParameter("KCHVMSTOR0012E")
except Exception as e:
raise InvalidParameter("KCHVMSTOR0015E", {'error': e})
if len(vol_info['used_by']) != 0:
raise InvalidParameter("KCHVMSTOR0016E")
valid_format = {
"disk": ["raw", "qcow", "qcow2", "qed", "vmdk", "vpc"],
"cdrom": "iso"}
if vol_info['type'] == 'file':
if (params['type'] == 'disk' and
vol_info['format'] in valid_format[params['type']]):
params['format'] = vol_info['format']
else:
raise InvalidParameter("KCHVMSTOR0018E",
{"format": vol_info['format'],
"type": params['type']})
if (params['format'] == 'raw' and not vol_info['isvalid']):
message = 'This is not a valid RAW disk image.'
raise OperationFailed('KCHVMSTOR0008E', {'error': message})
params['path'] = vol_info['path']
params['disk'] = vol_info['type']
params.update(self._get_available_bus_address(params['bus'], vm_name))
# Add device to VM
dev, xml = get_disk_xml(params)
try:
dom = VMModel.get_vm(vm_name, self.conn)
dom.attachDeviceFlags(xml, get_vm_config_flag(dom, 'all'))
except Exception as e:
raise OperationFailed("KCHVMSTOR0008E", {'error': e.message})
# Don't put a try-block here. Let the exception be raised. If we
# allow disks used_by to be out of sync, data corruption could
# occour if a disk is added to two guests unknowingly.
if params.get('vol'):
used_by = vol_info['used_by']
used_by.append(vm_name)
set_disk_used_by(self.objstore, params['path'], used_by)
return dev
def get_list(self, vm_name):
dom = VMModel.get_vm(vm_name, self.conn)
return get_vm_disks(dom).keys()
def create(self, vm_name, params):
vol_model = None
# Path will never be blank due to API.json verification.
# There is no need to cover this case here.
if not ('vol' in params) ^ ('path' in params):
raise InvalidParameter("KCHVMSTOR0017E")
dom = VMModel.get_vm(vm_name, self.conn)
params['bus'] = _get_device_bus(params['type'], dom)
params['format'] = 'raw'
dev_list = [dev for dev, bus in get_vm_disks(dom).iteritems()
if bus == params['bus']]
dev_list.sort()
if len(dev_list) == 0:
params['index'] = 0
else:
char = dev_list.pop()[2]
params['index'] = string.ascii_lowercase.index(char) + 1
if (params['bus'] not in HOTPLUG_TYPE and
DOM_STATE_MAP[dom.info()[0]] != 'shutoff'):
raise InvalidOperation('KCHVMSTOR0011E')
if params.get('vol'):
try:
pool = params['pool']
vol_model = StorageVolumeModel(conn=self.conn,
objstore=self.objstore)
vol_info = vol_model.lookup(pool, params['vol'])
except KeyError:
raise InvalidParameter("KCHVMSTOR0012E")
except Exception as e:
raise InvalidParameter("KCHVMSTOR0015E", {'error': e})
if len(vol_info['used_by']) != 0:
raise InvalidParameter("KCHVMSTOR0016E")
valid_format = {
"disk": ["raw", "bochs", "qcow", "qcow2", "qed", "vmdk"],
"cdrom": "iso"}
if vol_info['type'] == 'file':
if (params['type'] == 'disk' and
vol_info['format'] in valid_format[params['type']]):
params['format'] = vol_info['format']
else:
raise InvalidParameter("KCHVMSTOR0018E",
{"format": vol_info['format'],
"type": params['type']})
if (params['format'] == 'raw' and not vol_info['isvalid']):
message = 'This is not a valid RAW disk image.'
raise OperationFailed('KCHVMSTOR0008E', {'error': message})
params['path'] = vol_info['path']
params['disk'] = vol_info['type']
params.update(self._get_available_bus_address(params['bus'], vm_name))
# Add device to VM
dev, xml = get_disk_xml(params)
try:
dom = VMModel.get_vm(vm_name, self.conn)
dom.attachDeviceFlags(xml, get_vm_config_flag(dom, 'all'))
except Exception as e:
raise OperationFailed("KCHVMSTOR0008E", {'error': e.message})
# Don't put a try-block here. Let the exception be raised. If we
# allow disks used_by to be out of sync, data corruption could
# occour if a disk is added to two guests unknowingly.
if params.get('vol'):
used_by = vol_info['used_by']
used_by.append(vm_name)
set_disk_used_by(self.objstore, params['path'], used_by)
return dev
def get_list(self, vm_name):
dom = VMModel.get_vm(vm_name, self.conn)
return get_vm_disks(dom).keys()
def create(self, vm_name, params):
# Path will never be blank due to API.json verification.
# There is no need to cover this case here.
if not ('vol' in params) ^ ('path' in params):
if not is_s390x():
raise InvalidParameter('KCHVMSTOR0017E')
if 'dir_path' not in params:
raise InvalidParameter('KCHVMSTOR0019E')
dom = VMModel.get_vm(vm_name, self.conn)
params['bus'] = _get_device_bus(params['type'], dom)
if is_s390x() and params['type'] == 'disk' and 'dir_path' in params:
if 'format' not in params:
raise InvalidParameter('KCHVMSTOR0020E')
size = params['size']
name = params['name']
dir_path = params.get('dir_path')
params['path'] = dir_path + '/' + name
if os.path.exists(params['path']):
raise InvalidParameter('KCHVMSTOR0021E',
{'disk_path': params['path']})
create_disk_image(format_type=params['format'],
path=params['path'],
capacity=size)
else:
params['format'] = 'raw'
dev_list = [
dev for dev, bus in get_vm_disks(dom).items()
if bus == params['bus']
]
dev_list.sort()
if len(dev_list) == 0:
params['index'] = 0
else:
char = dev_list.pop()[2]
params['index'] = string.ascii_lowercase.index(char) + 1
if (params['bus'] not in HOTPLUG_TYPE
and DOM_STATE_MAP[dom.info()[0]] != 'shutoff'):
raise InvalidOperation('KCHVMSTOR0011E')
if params.get('vol'):
vol_info = self._get_vol_info(params)
params['path'] = vol_info['path']
params['disk'] = vol_info['type']
params.update(self._get_available_bus_address(params['bus'], vm_name))
# Add device to VM
dev, xml = get_disk_xml(params)
try:
dom = VMModel.get_vm(vm_name, self.conn)
dom.attachDeviceFlags(xml, get_vm_config_flag(dom, 'all'))
except Exception as e:
raise OperationFailed('KCHVMSTOR0008E', {'error': str(e)})
# Don't put a try-block here. Let the exception be raised. If we
# allow disks used_by to be out of sync, data corruption could
# occur if a disk is added to two guests unknowingly.
if params.get('vol'):
used_by = vol_info['used_by']
used_by.append(vm_name)
return dev
def create(self, vm_name, params):
# Path will never be blank due to API.json verification.
# There is no need to cover this case here.
if not ('vol' in params) ^ ('path' in params):
if not is_s390x():
raise InvalidParameter('KCHVMSTOR0017E')
if 'dir_path' not in params:
raise InvalidParameter('KCHVMSTOR0019E')
dom = VMModel.get_vm(vm_name, self.conn)
params['bus'] = _get_device_bus(params['type'], dom)
if is_s390x() and params['type'] == 'disk' and 'dir_path' in params:
if 'format' not in params:
raise InvalidParameter('KCHVMSTOR0020E')
size = params['size']
name = params['name']
dir_path = params.get('dir_path')
params['path'] = dir_path + '/' + name
if os.path.exists(params['path']):
raise InvalidParameter(
'KCHVMSTOR0021E', {'disk_path': params['path']})
create_disk_image(
format_type=params['format'], path=params['path'], capacity=size
)
else:
params['format'] = 'raw'
dev_list = [
dev for dev, bus in get_vm_disks(dom).items() if bus == params['bus']
]
dev_list.sort()
if len(dev_list) == 0:
params['index'] = 0
else:
char = dev_list.pop()[2]
params['index'] = string.ascii_lowercase.index(char) + 1
if (
params['bus'] not in HOTPLUG_TYPE and
DOM_STATE_MAP[dom.info()[0]] != 'shutoff'
):
raise InvalidOperation('KCHVMSTOR0011E')
if params.get('vol'):
vol_info = self._get_vol_info(params)
params['path'] = vol_info['path']
params['disk'] = vol_info['type']
params.update(self._get_available_bus_address(params['bus'], vm_name))
# Add device to VM
dev, xml = get_disk_xml(params)
try:
dom = VMModel.get_vm(vm_name, self.conn)
dom.attachDeviceFlags(xml, get_vm_config_flag(dom, 'all'))
except Exception as e:
raise OperationFailed('KCHVMSTOR0008E', {'error': str(e)})
# Don't put a try-block here. Let the exception be raised. If we
# allow disks used_by to be out of sync, data corruption could
# occur if a disk is added to two guests unknowingly.
if params.get('vol'):
used_by = vol_info['used_by']
used_by.append(vm_name)
return dev
