Ajout du support des bases Oracle
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ssamson-tis
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141
libtisbackup/backup_oracle.py
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141
libtisbackup/backup_oracle.py
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# -----------------------------------------------------------------------
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# This file is part of TISBackup
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#
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# TISBackup is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# TISBackup is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with TISBackup. If not, see <http://www.gnu.org/licenses/>.
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#
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# -----------------------------------------------------------------------
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import sys
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try:
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sys.stderr = open('/dev/null') # Silence silly warnings from paramiko
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import paramiko
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except ImportError,e:
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print "Error : can not load paramiko library %s" % e
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raise
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sys.stderr = sys.__stderr__
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import datetime
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import base64
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import os
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from common import *
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class backup_oracle(backup_generic):
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"""Backup a oracle database as zipped file through ssh"""
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type = 'oracle+ssh'
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required_params = backup_generic.required_params + ['db_name','private_key']
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optional_params = ['username', 'remote_backup_dir']
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db_name=''
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username='oracle'
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remote_backup_dir = r'/home/oracle/backup'
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def do_backup(self,stats):
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self.logger.debug('[%s] Connecting to %s with user root and key %s',self.backup_name,self.server_name,self.private_key)
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try:
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mykey = paramiko.RSAKey.from_private_key_file(self.private_key)
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except paramiko.SSHException:
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mykey = paramiko.DSSKey.from_private_key_file(self.private_key)
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ssh = paramiko.SSHClient()
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ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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ssh.connect(self.server_name,username=self.username,pkey = mykey,port=self.ssh_port)
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t = datetime.datetime.now()
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backup_start_date = t.strftime('%Y%m%d-%Hh%Mm%S')
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# dump db
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stats['status']='Dumping'
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cmd = 'expdp / full=Y compression=all directory=' + self.remote_backup_dir +' dumpfile=' + self.db_name + '_' + backup_start_date+'.dmp logfile=expd_' + self.db_name + '_' + backup_start_date +'.log'
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self.logger.debug('[%s] Dump DB : %s',self.backup_name,cmd)
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if not self.dry_run:
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(error_code,output) = ssh_exec(cmd,ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s",self.backup_name,cmd,output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code,cmd))
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# zip the file
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stats['status']='Zipping'
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cmd = '/usr/bin/pigz --best --verbose --rsyncable ' + self.remote_backup_dir + '/'+ self.db_name + '_' + backup_start_date+'.dmp'
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self.logger.debug('[%s] Compress backup : %s',self.backup_name,cmd)
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if not self.dry_run:
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(error_code,output) = ssh_exec(cmd,ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s",self.backup_name,cmd,output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code,cmd))
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# get the file
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stats['status']='SFTP'
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filepath = self.remote_backup_dir + '/'+ self.db_name + '_' + backup_start_date+'.dmp.gz'
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localpath = os.path.join(self.backup_dir , self.db_name + '-' + backup_start_date + '.dmp.gz')
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self.logger.debug('[%s] Get gz backup with sftp on %s from %s to %s',self.backup_name,self.server_name,filepath,localpath)
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if not self.dry_run:
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transport = ssh.get_transport()
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sftp = paramiko.SFTPClient.from_transport(transport)
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sftp.get(filepath, localpath)
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sftp.close()
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if not self.dry_run:
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stats['total_files_count']=1
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stats['written_files_count']=1
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stats['total_bytes']=os.stat(localpath).st_size
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stats['written_bytes']=os.stat(localpath).st_size
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stats['log']='gzip dump of DB %s:%s (%d bytes) to %s' % (self.server_name,self.db_name, stats['written_bytes'], localpath)
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stats['backup_location'] = localpath
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stats['status']='RMTemp'
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cmd = 'rm -f '+self.remote_backup_dir + '/' +self.db_name + '_' + backup_start_date+'.dmp.gz'
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self.logger.debug('[%s] Remove temp gzip : %s',self.backup_name,cmd)
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if not self.dry_run:
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(error_code,output) = ssh_exec(cmd,ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s",self.backup_name,cmd,output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code,cmd))
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cmd = 'rm -f '+self.remote_backup_dir + '/' + self.db_name + '_' + backup_start_date+'.dmp'
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self.logger.debug('[%s] Remove temp dump : %s',self.backup_name,cmd)
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if not self.dry_run:
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(error_code,output) = ssh_exec(cmd,ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s",self.backup_name,cmd,output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code,cmd))
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stats['status']='OK'
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def register_existingbackups(self):
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"""scan backup dir and insert stats in database"""
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registered = [b['backup_location'] for b in self.dbstat.query('select distinct backup_location from stats where backup_name=?',(self.backup_name,))]
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filelist = os.listdir(self.backup_dir)
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filelist.sort()
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p = re.compile('^%s-(?P<date>\d{8,8}-\d{2,2}h\d{2,2}m\d{2,2}).sql.gz$' % self.db_name)
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for item in filelist:
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sr = p.match(item)
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if sr:
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file_name = os.path.join(self.backup_dir,item)
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start = datetime.datetime.strptime(sr.groups()[0],'%Y%m%d-%Hh%Mm%S').isoformat()
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if not file_name in registered:
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self.logger.info('Registering %s from %s',file_name,fileisodate(file_name))
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size_bytes = int(os.popen('du -sb "%s"' % file_name).read().split('\t')[0])
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self.logger.debug(' Size in bytes : %i',size_bytes)
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if not self.dry_run:
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self.dbstat.add(self.backup_name,self.server_name,'',\
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backup_start=start,backup_end=fileisodate(file_name),status='OK',total_bytes=size_bytes,backup_location=file_name)
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else:
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self.logger.info('Skipping %s from %s, already registered',file_name,fileisodate(file_name))
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register_driver(backup_oracle)
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