学python有一段时间了，花了两天时间写了个备份的脚本。可以将Linux vps上的网站目录及数据库全部导出一份到远程FTP服务器上，再配置crontab实现每天的自动备份。功能上跟imcat的这个备份脚本是一样的，但程序比imcat的健壮多了，加入了N多自动判断，不会导致程序轻易出错。
代码仅适于python2，不适用于python3。因为调用了压缩模块，还需要yum install zlib zlib-devel
最后，需要强调的，此段代码是个python菜鸟写出来的，还望路过的大侠指点一二，切莫贱笑！
python代码如下：
#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import sys
import zipfile
import socket
import commands
from datetime import date,datetime,timedelta
from ftplib import FTP
########你需要修改的地方开始#########
website_dir='/home/wwwroot' #你的网站目录
backup_dir='/home/backup' #本地的备份目录（即要把备份文件放在哪里）
MysqL_user='root' #MysqL用户名
MysqL_password='xxxxx' #MysqL密码
ftp_server='xx.xx.xx.xx' #远程FTP服务器地址
ftp_user='xxxxx' #远程FTP用户名
ftp_password='xxxxx' #远程FTP密码
ftp_backup_dir='backup' #远程FTP上要用于备份的目录
########你需要修改的地方结束#########
print(checking backup directory...)
try:
if os.path.isdir(backup_dir):
print(found backup directory + backup_dir + ,ready to process backup...)
else:
print(don't found backup directory + backup_dir + ,try to build one...)
os.mkdir(backup_dir)
except IOError,err:
print err
sys.exit()
newday = date.today() #获取今天的日期
oldday = date.today()-timedelta(5) #获得5天前的日期
newfile = backup_dir + '/' + 'backup_data_' + str(newday.year) + '.' + str(newday.month) + '.' + str(newday.day) + '.zip' #本次备份的文件名(绝对路径)
oldfile = backup_dir + '/' + 'backup_data_' + str(oldday.year) + '.' + str(oldday.month) + '.' + str(oldday.day) + '.zip' #5天前备份的文件名(绝对路径)
newdb = backup_dir + '/' + 'backup_db_' + str(newday.year) + '.' + str(newday.month) + '.' + str(newday.day) + '.sql.gz' #本次导出的数据库名
olddb = backup_dir + '/' + 'backup_db_' + str(oldday.year) + '.' + str(oldday.month) + '.' + str(oldday.day) + '.sql.gz' #5天前导出的数据库名
print(today is + str(newday.year) + . + str(newday.month) + . + str(newday.day))
print(delete old backup data...) #删除本机上5天前的备份文件
try:
if os.path.isfile(oldfile):
os.remove(oldfile)
print(found old data at local,deleted it.)
else:
print(doesn't found old data at local,jumped.)
if os.path.isfile(olddb):
os.remove(olddb)
print(found old db at local,deleted it.)
else:
print(doesn't found old db at local,jumped.)
except IOError,err:
print err
sys.exit()
print(compress your website directory...) #压缩网站目录
try:
f = zipfile.ZipFile(newfile,'w',zipfile.ZIP_DEFLATED)
for dirpath,dirnames,filenames in os.walk(website_dir):
for filename in filenames:
f.write(os.path.join(dirpath,filename))
f.close()
print(compressed webiste directory completely! file name is + newfile)
except IOError,err:
print err
sys.exit()
print(export your databases...) #导出数据库
try:
cmd1 = MysqLdump -u + MysqL_user + -p + MysqL_password + --all-databases | gzip > + newdb
h = commands.getstatusoutput(cmd1)
if h[0] == 0:
print(export databases successful,continue processing...)
else:
print(export databases Failed. please check your MysqL username or password,or check MysqL server status.)
sys.exit()
except IOError,error:
print error
sys.exit()
print(prepare upload your backup data to remote ftp server...)
def upload():
socket.setdefaulttimeout(60) #超时FTP时间设置为60秒
ftp = FTP(ftp_server)
print(login ftp...)
try:
ftp.login(ftp_user,ftp_password) #登陆FTP
print(ftp.getwelcome().decode(GB2312).encode(UTF-8)) #获得欢迎信息
try:
if ftp_backup_dir in ftp.nlst():
print(found backup folder in ftp server,upload processing.)
else:
print(doesn't found backup folder in ftp server,try to build it.)
ftp.mkd(ftp_backup_dir)
except:
print(the folder + ftp_backup_dir + doesn't exist and can't be create!)
sys.exit()
except:
print(ftp login Failed. exit.)
sys.exit()
ftp.cwd(ftp_backup_dir) #设置FTP路径
print(upload data...)
try:
ftp.storbinary('STOR ' + os.path.basename(newfile),open(newfile,'rb'),1024) #上传备份文件
ftp.storbinary('STOR ' + os.path.basename(newdb),open(newdb,1024) #上传导出的数据库
except:
print(upload Failed. check your permission.)
sys.exit()
print(delete old file...)
if os.path.basename(oldfile) in ftp.nlst():
ftp.delete(os.path.basename(oldfile)) #删除5天前的备份文件
print(found old data file at ftp server,deleted it.)
else:
print(doesn't found old file at ftp server,jumped.)
if os.path.basename(olddb) in ftp.nlst():
ftp.delete(os.path.basename(olddb))
print(found old db file at ftp server,deleted it.)
else:
print(doesn't found old db at ftp server,jumped.)
print(ftp upload successful. exit...)
ftp.quit()
if __name__== '__main__':
upload()
# 来自jb51.cc 
