83 lines
2.9 KiB
Python
83 lines
2.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
#
|
|
# Copyright 2012 Pedro Navarro Perez
|
|
# Copyright 2013 Cloudbase Solutions Srl
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
"""
|
|
Helper methods for operations related to the management of volumes
|
|
and storage repositories on Windows Server 2012 and above
|
|
"""
|
|
import sys
|
|
import time
|
|
|
|
if sys.platform == 'win32':
|
|
import wmi
|
|
|
|
from oslo.config import cfg
|
|
|
|
from nova import utils
|
|
from nova.virt.hyperv import basevolumeutils
|
|
|
|
CONF = cfg.CONF
|
|
|
|
|
|
class VolumeUtilsV2(basevolumeutils.BaseVolumeUtils):
|
|
def __init__(self, host='.'):
|
|
super(VolumeUtilsV2, self).__init__(host)
|
|
|
|
storage_namespace = '//%s/root/microsoft/windows/storage' % host
|
|
if sys.platform == 'win32':
|
|
self._conn_storage = wmi.WMI(moniker=storage_namespace)
|
|
|
|
def login_storage_target(self, target_lun, target_iqn, target_portal):
|
|
"""Add target portal, list targets and logins to the target."""
|
|
(target_address,
|
|
target_port) = utils.parse_server_string(target_portal)
|
|
|
|
#Adding target portal to iscsi initiator. Sending targets
|
|
portal = self._conn_storage.MSFT_iSCSITargetPortal
|
|
portal.New(TargetPortalAddress=target_address,
|
|
TargetPortalPortNumber=target_port)
|
|
#Connecting to the target
|
|
target = self._conn_storage.MSFT_iSCSITarget
|
|
target.Connect(NodeAddress=target_iqn,
|
|
IsPersistent=True)
|
|
#Waiting the disk to be mounted.
|
|
#TODO(pnavarro): Check for the operation to end instead of
|
|
#relying on a timeout
|
|
time.sleep(CONF.hyperv.volume_attach_retry_interval)
|
|
|
|
def logout_storage_target(self, target_iqn):
|
|
"""Logs out storage target through its session id."""
|
|
targets = self._conn_storage.MSFT_iSCSITarget(NodeAddress=target_iqn)
|
|
if targets:
|
|
target = targets[0]
|
|
if target.IsConnected:
|
|
sessions = self._conn_storage.MSFT_iSCSISession(
|
|
TargetNodeAddress=target_iqn)
|
|
|
|
for session in sessions:
|
|
if session.IsPersistent:
|
|
session.Unregister()
|
|
|
|
target.Disconnect()
|
|
|
|
def execute_log_out(self, session_id):
|
|
sessions = self._conn_wmi.MSiSCSIInitiator_SessionClass(
|
|
SessionId=session_id)
|
|
if sessions:
|
|
self.logout_storage_target(sessions[0].TargetName)
|