TISbackup/libtisbackup/backup_xcp_metadata.py

109 lines
4.5 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------
# This file is part of TISBackup
#
# TISBackup is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# TISBackup is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with TISBackup. If not, see <http://www.gnu.org/licenses/>.
#
# -----------------------------------------------------------------------
import sys
import shutil
import datetime
import base64
import os
from common import *
class backup_xcp_metadata(backup_generic):
"""Backup metatdata of a xcp pool using xe pool-dump-database"""
type = 'xcp-dump-metadata'
required_params = ['type','server_name','password_file','backup_name']
def do_backup(self,stats):
self.logger.debug('[%s] Connecting to %s with user root and key %s',self.backup_name,self.server_name,self.private_key)
if os.path.isfile('/opt/xensource/bin/xe') == False:
raise Exception('Aborting, /opt/xensource/bin/xe binary not present"')
t = datetime.datetime.now()
backup_start_date = t.strftime('%Y%m%d-%Hh%Mm%S')
# dump pool medatadata
localpath = os.path.join(self.backup_dir , 'xcp_metadata-' + backup_start_date + '.dump.gz')
temppath = '/tmp/xcp_metadata-' + backup_start_date + '.dump'
stats['status']='Dumping'
if not self.dry_run:
cmd = "/opt/xensource/bin/xe -s %s -pwf %s pool-dump-database file-name=%s" %(self.server_name,self.password_file,temppath)
self.logger.debug('[%s] Dump XCP Metadata : %s',self.backup_name,cmd)
call_external_process(cmd)
# zip the file
stats['status']='Zipping'
cmd = 'gzip %s ' %temppath
self.logger.debug('[%s] Compress backup : %s',self.backup_name,cmd)
if not self.dry_run:
call_external_process(cmd)
# get the file
stats['status']='move to backup directory'
self.logger.debug('[%s] Moving temp backup file %s to backup new path %s',self.backup_name,self.server_name,localpath)
if not self.dry_run:
shutil.move (temppath + '.gz' ,localpath)
if not self.dry_run:
stats['total_files_count']=1
stats['written_files_count']=1
stats['total_bytes']=os.stat(localpath).st_size
stats['written_bytes']=os.stat(localpath).st_size
stats['log']='gzip dump of DB %s:%s (%d bytes) to %s' % (self.server_name,'xcp metadata dump', stats['written_bytes'], localpath)
stats['backup_location'] = localpath
stats['status']='OK'
def register_existingbackups(self):
"""scan metatdata backup files and insert stats in database"""
registered = [b['backup_location'] for b in self.dbstat.query('select distinct backup_location from stats where backup_name=?',(self.backup_name,))]
filelist = os.listdir(self.backup_dir)
filelist.sort()
p = re.compile('^%s-(?P<date>\d{8,8}-\d{2,2}h\d{2,2}m\d{2,2}).dump.gz$' % self.server_name)
for item in filelist:
sr = p.match(item)
if sr:
file_name = os.path.join(self.backup_dir,item)
start = datetime.datetime.strptime(sr.groups()[0],'%Y%m%d-%Hh%Mm%S').isoformat()
if not file_name in registered:
self.logger.info('Registering %s from %s',file_name,fileisodate(file_name))
size_bytes = int(os.popen('du -sb "%s"' % file_name).read().split('\t')[0])
self.logger.debug(' Size in bytes : %i',size_bytes)
if not self.dry_run:
self.dbstat.add(self.backup_name,self.server_name,'',\
backup_start=start,backup_end=fileisodate(file_name),status='OK',total_bytes=size_bytes,backup_location=file_name)
else:
self.logger.info('Skipping %s from %s, already registered',file_name,fileisodate(file_name))
register_driver(backup_xcp_metadata)