
1) new snapshot module with code vss, lvm and part of backup.py - create_snapshot and remove_snapshot This module should contain all code related shadow, vss and any new snapshots. 2) new openstack module with code from osclient, restore and backup (BackupOS) This module should contain code related to cinder/nova backups 3) new utils module with code from utils, win_utils, bandwidth, config, exec_cmd, validator, streaming This module should containd code related to anything that cannot be extracted to its own module 4) new test modules - snapshot, utils, openstack and apiclient. Test scheduler daemon is now located in scheduler module. 5) Backup.py is deleted and code placed to openstack.backup (BackupOS) and to job.BackupJob Change-Id: I46194b40b3a65c15b6095cfb7388dcfd30d95997
158 lines
5.1 KiB
Python
158 lines
5.1 KiB
Python
# Copyright 2015 Hewlett-Packard
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import os
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import win32serviceutil
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from freezer.utils import utils
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from freezer.utils import winutils
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def setup_logging(log_file):
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class NoLogFilter(logging.Filter):
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def filter(self, record):
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return False
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def configure_logging(file_name):
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expanded_file_name = os.path.expanduser(file_name)
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expanded_dir_name = os.path.dirname(expanded_file_name)
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utils.create_dir(expanded_dir_name, do_log=False)
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logging.basicConfig(
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filename=expanded_file_name,
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level=logging.INFO,
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format=('%(asctime)s %(name)s %(levelname)s %(message)s'))
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# filter out some annoying messages
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# not the best position for this code
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log_filter = NoLogFilter()
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logging.getLogger("apscheduler.scheduler").\
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addFilter(log_filter)
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logging.getLogger("apscheduler.executors.default").\
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addFilter(log_filter)
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logging.getLogger("requests.packages.urllib3.connectionpool").\
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addFilter(log_filter)
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return expanded_file_name
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log_file_paths = [log_file] if log_file else [
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r'C:\.freezer\freezer-scheduler.log']
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for file_name in log_file_paths:
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try:
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return configure_logging(file_name)
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except IOError:
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pass
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raise Exception("Unable to write to log file")
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class Daemon(object):
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"""Daemon interface to start a windows service with a freezer-scheduler
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instance
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"""
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def __init__(self, daemonizable=None, interval=None, job_path=None,
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insecure=False):
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self.service_name = 'FreezerService'
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self.home = r'C:\.freezer'
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# this is only need it in order to have the same interface as in linux
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self.daemonizable = daemonizable
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self.interval = interval or 60
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self.job_path = job_path or r'C:\.freezer\scheduler\conf.d'
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self.insecure = insecure
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@utils.shield
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def start(self, log_file=None):
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"""Initialize freezer-scheduler instance inside a windows service
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"""
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setup_logging(log_file)
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utils.create_dir(self.home)
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if self.insecure:
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os.environ['SERVICE_INSECURE'] = 'True'
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# send arguments info to the windows service
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os.environ['SERVICE_JOB_PATH'] = self.job_path
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os.environ['SERVICE_INTERVAL'] = str(self.interval)
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winutils.save_environment(self.home)
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print('Freezer Service is starting')
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win32serviceutil.StartService(self.service_name)
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@utils.shield
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def reload(self):
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"""Reload the windows service
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"""
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win32serviceutil.RestartService(self.service_name)
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@utils.shield
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def stop(self):
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"""Stop the windows service by using sc queryex command, if we use
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win32serviceutil.StoptService(self.service_name) it never gets stopped
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becuase freezer_scheduler.start() blocks the windows service and
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prevents any new signal to reach the service.
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"""
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query = 'sc queryex {0}'.format(self.service_name)
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out = utils.create_subprocess(query)[0]
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pid = None
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for line in out.split('\n'):
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if 'PID' in line:
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pid = line.split(':')[1].strip()
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command = 'taskkill /f /pid {0}'.format(pid)
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utils.create_subprocess(command)
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print('Freezer Service has stopped')
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@utils.shield
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def status(self):
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"""Return running status of Freezer Service
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by querying win32serviceutil.QueryServiceStatus()
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possible running status:
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1 == stop
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4 == running
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"""
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if win32serviceutil.QueryServiceStatus(self.service_name)[1] == 4:
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print("{0} is running normally".format(self.service_name))
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else:
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print("{0} is *NOT* running".format(self.service_name))
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class NoDaemon(object):
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"""A class that share the same interface as the Daemon class but doesn't
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initialize a windows service to execute the scheduler, it runs in the
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foreground
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"""
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def __init__(self, daemonizable=None):
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# this is only need it in order to have the same interface as in linux
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self.daemonizable = daemonizable
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@utils.shield
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def stop(self):
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self.daemonizable.stop()
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def status(self):
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"""Need it to have the same interface as Daemon
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"""
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pass
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def reload(self):
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"""Need it to have the same interface as Daemon
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"""
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pass
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@utils.shield
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def start(self, log_file=None):
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self.daemonizable.start()
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