nova/tools/xenserver/destroy_cached_images.py
Huan Xie 062065ca9e XenAPI Use os-xenapi lib for nova
XenServer has released os-xenapi lib on pypi, this patch is to
use os-xenapi in nova project. In this patch, we only change
the usage of XenAPI to os-xenapi and fix unit tests. In the next
patch, we will delete those unused files.

Partially-Implements: blueprint add-os-xenapi-library

Depends-On: Ic327135b893a77672fd42af919f47f181e932773

Change-Id: I424dfcd507c4b7fbeea5245cc1c234dec01d5781
2017-01-10 17:26:23 -08:00

82 lines
2.5 KiB
Python

# 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.
"""
destroy_cached_images.py
This script is used to clean up Glance images that are cached in the SR. By
default, this script will only cleanup unused cached images.
Options:
--dry_run - Don't actually destroy the VDIs
--all_cached - Destroy all cached images instead of just unused cached
images.
"""
import eventlet
eventlet.monkey_patch()
import os
import sys
from os_xenapi.client import session
from oslo_config import cfg
# If ../nova/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
POSSIBLE_TOPDIR = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir,
os.pardir))
if os.path.exists(os.path.join(POSSIBLE_TOPDIR, 'nova', '__init__.py')):
sys.path.insert(0, POSSIBLE_TOPDIR)
import nova.conf
from nova import config
from nova import utils
from nova.virt.xenapi import vm_utils
destroy_opts = [
cfg.BoolOpt('all_cached',
default=False,
help='Destroy all cached images instead of just unused cached'
' images.'),
cfg.BoolOpt('dry_run',
default=False,
help='Don\'t actually delete the VDIs.')
]
CONF = nova.conf.CONF
CONF.register_cli_opts(destroy_opts)
def main():
config.parse_args(sys.argv)
utils.monkey_patch()
_session = session.XenAPISession(CONF.xenserver.connection_url,
CONF.xenserver.connection_username,
CONF.xenserver.connection_password)
sr_ref = vm_utils.safe_find_sr(_session)
destroyed = vm_utils.destroy_cached_images(
_session, sr_ref, all_cached=CONF.all_cached,
dry_run=CONF.dry_run)
if '--verbose' in sys.argv:
print('\n'.join(destroyed))
print("Destroyed %d cached VDIs" % len(destroyed))
if __name__ == "__main__":
main()