centos 7 keepalived故障邮件通知实战(附Python邮件发送脚本)

##################### sendmail.py begin #####################
#!/usr/bin/python -W
# -*- coding: UTF-8 -*-

from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.utils import COMMASPACE,formatdate
from email import encoders

import os

#server['name'], server['user'], server['passwd']
def send_mail(server, fro, to, subject, text, files=[]):
assert type(server) == dict
assert type(to) == list
assert type(files) == list

msg = MIMEMultipart()
msg['From'] = fro
msg['Subject'] = subject
msg['To'] = COMMASPACE.join(to) #COMMASPACE==', '
msg['Date'] = formatdate(localtime=True)
msg.attach(MIMEText(text))

for file in files:
part = MIMEBase('application', 'octet-stream') #'octet-stream': binary data
part.set_payload(open(file, 'rb'.read()))
encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(file))
msg.attach(part)

import smtplib
smtp = smtplib.SMTP(server['name'])
smtp.login(server['user'], server['passwd'])
smtp.sendmail(fro, to, msg.as_string())
smtp.close()

send_mail({'name':'smtp.163.com','user':'erp2','passwd':'xxxxxxxxxx'}, 'erp2@163.com', ['99923309@qq.com'], '服务器故障转移', 'keepalived故障转移通知',[])

##################### sendmail.py end #####################

linux centos7.2实际测试可用，放在：/etc/keepalived/sendmail.py

keepalived配置如下：
在 /etc/keepalived/keepalived.conf 中增加:

vrrp_sync_group VG_1 {
group {
VI_1
}
notify_master /etc/keepalived/sendmail.py
}

重启keepalived服务即可