Beispiel #1
0
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
Beispiel #2
0
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
Beispiel #3
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    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
Beispiel #4
0
 def get_list(self, vm_name):
     dom = VMModel.get_vm(vm_name, self.conn)
     return get_vm_disks(dom).keys()
Beispiel #5
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    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
Beispiel #6
0
 def get_list(self, vm_name):
     dom = VMModel.get_vm(vm_name, self.conn)
     return get_vm_disks(dom).keys()
Beispiel #7
0
    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
Beispiel #8
0
    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