88 lines
2.7 KiB
Python
Executable File
88 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# Copyright (c) 2012 OpenStack Foundation
|
|
#
|
|
# 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.
|
|
|
|
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
|
|
# which means the Nova xenapi plugins must use only Python 2.4 features
|
|
|
|
import logging
|
|
import os
|
|
import time
|
|
|
|
import pluginlib_nova as pluginlib
|
|
import utils
|
|
|
|
pluginlib.configure_logging("disk_utils")
|
|
_ = pluginlib._
|
|
|
|
|
|
def wait_for_dev(session, dev_path, max_seconds):
|
|
for i in range(0, max_seconds):
|
|
if os.path.exists(dev_path):
|
|
return dev_path
|
|
time.sleep(1)
|
|
|
|
return ""
|
|
|
|
|
|
def make_partition(session, dev, partition_start, partition_end):
|
|
dev_path = utils.make_dev_path(dev)
|
|
|
|
if partition_end != "-":
|
|
raise pluginlib.PluginError("Can only create unbounded partitions")
|
|
|
|
utils.run_command(['sfdisk', '-uS', dev_path],
|
|
'%s,;\n' % (partition_start))
|
|
|
|
|
|
def _mkfs(fs, path, label):
|
|
"""Format a file or block device
|
|
|
|
:param fs: Filesystem type (only 'swap', 'ext3' supported)
|
|
:param path: Path to file or block device to format
|
|
:param label: Volume label to use
|
|
"""
|
|
if fs == 'swap':
|
|
args = ['mkswap']
|
|
elif fs == 'ext3':
|
|
args = ['mkfs', '-t', fs]
|
|
# add -F to force no interactive execute on non-block device.
|
|
args.extend(['-F'])
|
|
if label:
|
|
args.extend(['-L', label])
|
|
else:
|
|
raise pluginlib.PluginError("Partition type %s not supported" % fs)
|
|
args.append(path)
|
|
utils.run_command(args)
|
|
|
|
|
|
def mkfs(session, dev, partnum, fs_type, fs_label):
|
|
dev_path = utils.make_dev_path(dev)
|
|
|
|
out = utils.run_command(['kpartx', '-avspp', dev_path])
|
|
try:
|
|
logging.info('kpartx output: %s' % out)
|
|
mapperdir = os.path.join('/dev', 'mapper')
|
|
dev_base = os.path.basename(dev)
|
|
partition_path = os.path.join(mapperdir, "%sp%s" % (dev_base, partnum))
|
|
_mkfs(fs_type, partition_path, fs_label)
|
|
finally:
|
|
# Always remove partitions otherwise we can't unplug the VBD
|
|
utils.run_command(['kpartx', '-dvspp', dev_path])
|
|
|
|
if __name__ == "__main__":
|
|
utils.register_plugin_calls(wait_for_dev,
|
|
make_partition,
|
|
mkfs)
|