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ssamson-tis
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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 os
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import datetime
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from common import *
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import XenAPI
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import time
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import logging
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import re
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import os.path
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import os
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import datetime
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import select
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import urllib2
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import base64
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import socket
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from stat import *
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class copy_vm_xcp(backup_generic):
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"""Backup a VM running on a XCP server on a second SR (requires xe tools and XenAPI)"""
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type = 'copy-vm-xcp'
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required_params = backup_generic.required_params + ['server_name','storage_name','password_file','vm_name','network_name']
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optional_params = backup_generic.optional_params + ['start_vm','max_copies']
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start_vm = "no"
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max_copies = 1
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def read_config(self,iniconf):
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assert(isinstance(iniconf,ConfigParser))
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backup_generic.read_config(self,iniconf)
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if self.start_vm in 'no' and iniconf.has_option('global','start_vm'):
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self.start_vm = iniconf.get('global','start_vm')
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if self.max_copies == 1 and iniconf.has_option('global','max_copies'):
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self.max_copies = iniconf.getint('global','max_copies')
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def copy_vm_to_sr(self, vm_name, storage_name, dry_run):
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user_xen, password_xen, null = open(self.password_file).read().split('\n')
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session = XenAPI.Session('https://'+self.server_name)
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try:
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session.login_with_password(user_xen,password_xen)
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except XenAPI.Failure, error:
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msg,ip = error.details
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if msg == 'HOST_IS_SLAVE':
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server_name = ip
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session = XenAPI.Session('https://'+server_name)
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session.login_with_password(user_xen,password_xen)
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self.logger.debug("[%s] VM (%s) to backup in storage: %s",self.backup_name,vm_name,storage_name)
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now = datetime.datetime.now()
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#get storage opaqueRef
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try:
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storage = session.xenapi.SR.get_by_name_label(storage_name)[0]
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except IndexError,error:
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return("error get storage opaqueref %s"%(error))
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#get vm to copy opaqueRef
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try:
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vm = session.xenapi.VM.get_by_name_label(vm_name)[0]
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except IndexError,error:
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return("error get VM opaqueref %s"%(error))
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#do the snapshot
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self.logger.debug("[%s] Snapshot in progress",self.backup_name)
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try:
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snapshot = session.xenapi.VM.snapshot(vm,"tisbackup-%s"%(vm_name))
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except XenAPI.Failure, error:
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return("error when snapshot %s"%(error))
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#get snapshot opaqueRef
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snapshot = session.xenapi.VM.get_by_name_label("tisbackup-%s"%(vm_name))[0]
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session.xenapi.VM.set_name_description(snapshot,"snapshot created by tisbackup on : %s"%(now.strftime("%Y-%m-%d %H:%M")))
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vm_backup_name = "zzz-%s-"%(vm_name)
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#Check if old backup exit
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list_backups = []
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for vm_ref in session.xenapi.VM.get_all():
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name_lablel = session.xenapi.VM.get_name_label(vm_ref)
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if vm_backup_name in name_lablel:
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list_backups.append(name_lablel)
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list_backups.sort()
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if len(list_backups) >= 1:
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# Shutting last backup if started
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last_backup_vm = session.xenapi.VM.get_by_name_label(list_backups[-1])[0]
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if not "Halted" in session.xenapi.VM.get_power_state(last_backup_vm):
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self.logger.debug("[%s] Shutting down last backup vm : %s", self.backup_name, list_backups[-1] )
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session.xenapi.VM.hard_shutdown(last_backup_vm)
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# Delete oldest backup if exist
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if len(list_backups) >= int(self.max_copies):
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for i in range(len(list_backups)-int(self.max_copies)+1):
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oldest_backup_vm = session.xenapi.VM.get_by_name_label(list_backups[i])[0]
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if not "Halted" in session.xenapi.VM.get_power_state(oldest_backup_vm):
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self.logger.debug("[%s] Shutting down old vm : %s", self.backup_name, list_backups[i] )
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session.xenapi.VM.hard_shutdown(oldest_backup_vm)
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try:
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self.logger.debug("[%s] Deleting old vm : %s", self.backup_name, list_backups[i])
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for vbd in session.xenapi.VM.get_VBDs(oldest_backup_vm):
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vdi = session.xenapi.VBD.get_VDI(vbd)
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if not 'NULL' in vdi:
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session.xenapi.VDI.destroy(vdi)
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session.xenapi.VM.destroy(oldest_backup_vm)
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except XenAPI.Failure, error:
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return("error when destroy old backup vm %s"%(error))
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self.logger.debug("[%s] Copy %s in progress on %s",self.backup_name,vm_name,storage_name)
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try:
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backup_vm = session.xenapi.VM.copy(snapshot,vm_backup_name+now.strftime("%Y-%m-%d %H:%M"),storage)
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except XenAPI.Failure, error:
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return("error when copy %s"%(error))
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# define VM as a template
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session.xenapi.VM.set_is_a_template(backup_vm,False)
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#change the network of the new VM
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try:
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vifDestroy = session.xenapi.VM.get_VIFs(backup_vm)
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except IndexError,error:
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return("error get VIF opaqueref %s"%(error))
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for i in vifDestroy:
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vifRecord = session.xenapi.VIF.get_record(i)
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session.xenapi.VIF.destroy(i)
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networkRef = session.xenapi.network.get_by_name_label(self.network_name)[0]
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data = {'MAC': vifRecord['MAC'],
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'MAC_autogenerated': False,
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'MTU': vifRecord['MTU'],
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'VM': backup_vm,
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'current_operations': vifRecord['current_operations'],
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'currently_attached': vifRecord['currently_attached'],
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'device': vifRecord['device'],
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'ipv4_allowed': vifRecord['ipv4_allowed'],
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'ipv6_allowed': vifRecord['ipv6_allowed'],
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'locking_mode': vifRecord['locking_mode'],
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'network': networkRef,
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'other_config': vifRecord['other_config'],
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'qos_algorithm_params': vifRecord['qos_algorithm_params'],
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'qos_algorithm_type': vifRecord['qos_algorithm_type'],
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'qos_supported_algorithms': vifRecord['qos_supported_algorithms'],
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'runtime_properties': vifRecord['runtime_properties'],
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'status_code': vifRecord['status_code'],
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'status_detail': vifRecord['status_detail']
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}
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try:
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session.xenapi.VIF.create(data)
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except Exception, error:
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return(error)
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if self.start_vm in ['true', '1', 't', 'y', 'yes', 'oui']:
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session.xenapi.VM.start(backup_vm,False,True)
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session.xenapi.VM.set_name_description(backup_vm,"snapshot created by tisbackup on : %s"%(now.strftime("%Y-%m-%d %H:%M")))
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#delete the snapshot
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try:
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session.xenapi.VM.destroy(snapshot)
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except XenAPI.Failure, error:
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return("error when destroy snapshot %s"%(error))
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return(0)
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def do_backup(self,stats):
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try:
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timestamp = int(time.time())
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cmd = self.copy_vm_to_sr(self.vm_name, self.storage_name, self.dry_run)
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if cmd == 0:
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timeExec = int(time.time()) - timestamp
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stats['log']='copy of %s to an other storage OK' % (self.backup_name)
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stats['status']='OK'
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stats['total_files_count'] = 1
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stats['backup_location'] = self.storage_name
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else:
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stats['status']='ERROR'
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stats['log']=cmd
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except BaseException,e:
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stats['status']='ERROR'
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stats['log']=str(e)
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raise
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register_driver(copy_vm_xcp)
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