简单备份文件并发送到指定邮箱

1 背景

一哥们发了个诉求,总觉得自己的服务器不安全,想搞个定时备份文件并发送到自己的邮箱

2 实现代码如下

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# -*- coding: utf-8 -*-

from __future__ import absolute_import, unicode_literals

import os
import datetime
import logging
import logging.config

from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.header import Header
from email.mime.application import MIMEApplication
import smtplib

name = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
base_path = '/root/xxxx/temp'
zip_path = '/root/xxxx/backup/{}.tar.bz2'.format(name)


def set_logging():
""""""

log_dir, log_file = '/root/xxxx/logs', '/root/xxxx/logs/backup.log'

if not os.path.exists(log_dir):
os.mkdir(log_dir)

if not os.path.exists(log_file):
open(log_file, 'w')

DEFAULT_LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'formatters': {
'formatone': {
'format': '[%(asctime)s] %(levelname)s : %(message)s',
}
},
'handlers': {
'file': {
'level': 'DEBUG',
'filename': '/root/xxxx/logs/backup.log',
'formatter': 'formatone',
'class': 'logging.handlers.RotatingFileHandler',
'maxBytes': 100 * 1024 * 1024,
'backupCount': 10,
},
},
'loggers': {
'backup': {
'handlers': ['file'],
'level': 'INFO',
},
}
}

logging.config.dictConfig(DEFAULT_LOGGING)


def zip_files():
"""zip files"""
os.system('tar -cjf {} -C {} data'.format(zip_path, base_path))


def sendmail():
"""send mail"""
set_logging()
zip_files()

logger = logging.getLogger('backup')

mail_from, password = 'xxxxxxx@aliyun.com', 'xxxxxxx'
mail_to = 'xxxxx@qq.com'
smtp_server = 'smtp.aliyun.com'

msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = 'send backup files {}'.format(name)
msgRoot['From'] = '{}<{}>'.format(Header('backup', 'utf-8'), mail_from)
msgRoot['To'] = mail_to

msgText = MIMEText('backup files', 'plain', 'utf-8')
msgRoot.attach(msgText)

zip_con = MIMEApplication(open(zip_path,'rb').read())
zip_con.add_header('Content-Disposition', 'attachment',
filename='{}.tar.bz2'.format(name))
msgRoot.attach(zip_con)

try:
server = smtplib.SMTP_SSL(smtp_server)
server.login(mail_from, password)
server.sendmail(mail_from, mail_to, msgRoot.as_string())
server.quit()
logger.info('send {} backup files success'.format(name))
except Exception, e:
logger.error('send {} failed {}'.format(name, e))
sendmail()


if __name__ == '__main__':
sendmail()

3 简单说明

3.1 打包文件

这个实现比较初级,直接用 shell 命令进行打包

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def zip_files():
"""zip files"""
os.system('tar -cjf {} -C {} data'.format(zip_path, base_path))

3.2 发送邮件

这个就不说了,现成的模块直接拿来用

3.3 日志记录

加上日志,可以很清楚的让我知道发送情况如下,示例如下:

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[2017-04-14 00:00:03,251] INFO : send 20170414000001 backup files success
[2017-04-14 03:00:02,620] INFO : send 20170414030001 backup files success
[2017-04-14 06:00:02,406] INFO : send 20170414060001 backup files success
[2017-04-14 09:00:02,349] INFO : send 20170414090001 backup files success
[2017-04-14 12:00:02,299] INFO : send 20170414120001 backup files success
[2017-04-14 15:01:04,696] ERROR : send 20170414150001 failed [Errno 110] Connection timed out
[2017-04-14 15:01:05,401] INFO : send 20170414150001 backup files success

3.4 定时处理

定时这个处理,直接使用 crontab 命令,创建个 backup_cron 文件,写入

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0 */3 * * *  python /root/xxxxx/backup.py

4 简单小结

业务比较简单,实现也比较简单,没啥可说的

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