Backup VMs XenServer/XCP

backup_vms.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
## Versao 0.3

### Colocar no Crontab
## Script para Backup do Citrix
## 15 03 * * * /usr/local/bin/backup_vms.py --backup --sendmail --clean=3


import os, sys, optparse, socket
import commands, time


#from smtplib import SMTP_SSL as SMTP       #secure SMTP protocol (port 465, uses SSL)
from smtplib import SMTP                    #standard SMTP protocol (port 25,587, no SSL)
from email.MIMEText import MIMEText


#---------------------------------------------------------------------------
## esses campos podem ser alterados
verbose    = False
message    = ''

hostname    = socket.gethostname()
backup_dir  = '/backups/vms'
log_file    = '/var/log/backup_vms.log'

l_hostname  = hostname + '.seudominio.com.br'
SMTPserver  = 'webmail.seudominio.com.br'
sender      = '[email protected]'
USERNAME    = '[email protected]'
PASSWORD    = 'xen0111'
destination = ['[email protected]']
des_ccc     = ['[email protected]']
skip        = ['d4b80e35-0dc7-bdfc-3806-d5b3cd746907']
#---------------------------------------------------------------------------



def get_backup_vms():
   result = []
   log("BACKUP FROM: %s" %(hostname) )
   cmd = "xe vm-list is-control-domain=false"
   output = commands.getoutput(cmd)

   for vm in output.split("\n\n\n"):
      lines = vm.split("\n")
      UUID = lines[0].split(":")[1][1:]
      NAME = lines[1].split(":")[1][1:]
      if UUID in skip:
         log('Skipping backup of: %s uuid: %s' %(NAME, UUID))
      else:
      	 uuid = lines[0].split(":")[1][1:]
         name = lines[1].split(":")[1][1:]
         result += [(uuid, name)]
           
   return result

def backup_vm(name, uuid, filename, timestamp):
   cmd = "xe vm-snapshot uuid=" + uuid + " new-name-label=" + name
   snapshot_uuid = commands.getoutput(cmd)
   log(snapshot_uuid)

   cmd = "xe template-param-set is-a-template=false ha-always-run=false uuid=" + snapshot_uuid
   cmd_result = commands.getoutput(cmd)
   log(cmd_result)

   filename = filename.replace(" ", "\ ")
   filename = filename.replace("(", "\(")
   filename = filename.replace(")", "\)")
   cmd = "xe vm-export compress=true vm=" + snapshot_uuid + " filename=" + filename
   cmd_result = commands.getoutput(cmd)
   log(cmd_result)

   cmd = "xe vm-uninstall uuid=" + snapshot_uuid + " force=true"
   cmd_result = commands.getoutput(cmd)
   log(cmd_result)


def clean_files(BackupDir, DaysToKeep):
    now = time.time()
    filelist = [ f for f in os.listdir(BackupDir) if f.endswith(".xva") ]
    for f in filelist:
        f = os.path.join(BackupDir, f)
        if os.stat(f).st_mtime < now - (DaysToKeep * 86400):
            if os.path.isfile(f):
                os.remove(f)
                log('APAGANDO O ARQUIVO: %s COM MAIS DE %s DIAS ...' %(f, DaysToKeep))



def exec_backup():
    for (uuid, name) in get_backup_vms():
        timestamp = time.strftime('%Y%m%d_%H%M')
        filename = ("%s/%s-%s.xva") %(backup_dir, name, timestamp)
        log("Backup name: %s filename: %s" %(name, filename))
        backup_vm(name, uuid, filename, timestamp)


def log(mes):
    global message
    str = ("%s - %s\n") %(time.strftime('%b %d %H:%M:%S'), mes)
    message += str

    if verbose: str = str.rstrip("\n"); print str


def send_mail(receiver, Subject):
    global message
    subject   = ("%s JOB: %s HOST: %s") %(Subject, sys.argv[0], hostname)
    receiver  = receiver
    text_subtype = 'plain'


    try:
        msg = MIMEText(message, text_subtype)
        msg['Subject']= subject
        msg['From']   = sender
        msg['To']     = ', '.join(receiver)
        receiver = receiver + des_ccc 

        conn = SMTP(SMTPserver,587,l_hostname)
        conn.set_debuglevel(False)
        conn.login(USERNAME, PASSWORD)
        try:
            conn.sendmail(sender, receiver, msg.as_string())
        finally:
            conn.close()

    except Exception, exc:
        log( "mail failed; %s" % str(exc) ) # give a error message


def main():
    global verbose, message
    usage = "usage: %prog --backup [options]"
    parser = optparse.OptionParser(usage)
    parser.add_option("--clean", action="store", type="int", dest="CLEAN", default=False, help="Para limpar os arquivos X dias")
    parser.add_option("--backup", action="store_true", dest="BACKUP", default=False, help="Para fazer Backup")
    parser.add_option("--debug", action="store_true", dest="DEBUG", default=False, help="Para habilitar Debug")
    parser.add_option("--sendmail", action="store_true", dest="SENDMAIL", default=False, help="Para enviar E-mail")
    options, args = parser.parse_args()
    

    if (options.DEBUG): verbose = True

    if (options.BACKUP):
    	log("[***JOB DE BACKUP XENSERVER****]")
    	exec_backup()
        if (options.CLEAN): clean_files(backup_dir, options.CLEAN)
        if (options.SENDMAIL): send_mail(destination, "LOG BACKUP XENSERVER")
        salve_log = open(log_file,"w"); salve_log.write(message); salve_log.close()


if __name__ == "__main__":
    main()