$ cat checkserver.py
#!/usr/bin/python
# -*- coding: utf-8 -*-

import os
import socket
import smtplib
from email.mime.text import MIMEText
from email.header import Header

mail_host = "smtp.exmail.qq.com"
mail_user = "[email protected]"
mail_pass = "yNE8dcsx"

sender = '[email protected]'
receivers = ['[email protected]']

def Checkserverdown():
    #三個引數：第一個為文字內容，第二個 plain 設定文字格式，第三個 utf-8 設定編碼
    message = MIMEText('192.168.71.200 nginx is down','plain','utf-8')
    message['From'] = Header("Nginx is down ", 'utf-8') # 傳送者
    message['To'] = Header("李鑫亮", 'utf-8')   # 接收者
    subject = '192.168.71.200 nginx is down'
    message['Subject'] = Header(subject,'utf-8')
    try:
        smtpobj = smtplib.SMTP()
        smtpobj.connect(mail_host,25)
        smtpobj.login(mail_user,mail_pass)
        smtpobj.sendmail(sender,receivers,message.as_string())
        print("郵件傳送成功")
    except smtplib.SMTPException:
        print("Error: 無法傳送郵件")

def Checkserverstilldown():
    #三個引數：第一個為文字內容，第二個 plain 設定文字格式，第三個 utf-8 設定編碼
    message = MIMEText('192.168.71.200 nginx is still down','plain','utf-8')
    message['From'] = Header("Nginx is still down ", 'utf-8') # 傳送者
    message['To'] = Header("李鑫亮", 'utf-8')   # 接收者
    subject = '192.168.71.200 nginx is still down'
    message['Subject'] = Header(subject,'utf-8')
    try:
        smtpobj = smtplib.SMTP()
        smtpobj.connect(mail_host,25)
        smtpobj.login(mail_user,mail_pass)
        smtpobj.sendmail(sender,receivers,message.as_string())
        print("郵件傳送成功")
    except smtplib.SMTPException:
        print("Error: 無法傳送郵件")

def Checkserverup():
    #三個引數：第一個為文字內容，第二個 plain 設定文字格式，第三個 utf-8 設定編碼
    message = MIMEText('192.168.71.200 nginx is  up','plain','utf-8')
    message['From'] = Header("Nginx is up ", 'utf-8') # 傳送者
    message['To'] = Header("李鑫亮", 'utf-8')   # 接收者
    subject = '192.168.71.200 nginx is up'
    message['Subject'] = Header(subject,'utf-8')
    try:
        smtpobj = smtplib.SMTP()
        smtpobj.connect(mail_host,25)
        smtpobj.login(mail_user,mail_pass)
        smtpobj.sendmail(sender,receivers,message.as_string())
        print("郵件傳送成功")
    except smtplib.SMTPException:
        print("Error: 無法傳送郵件")


# 判斷 nginx 程序輸出內容來確定是否要進行程序啟動
file = "/tmp/nginx.txt"
os.system("""ps -ef  |grep nginx  |grep -Ev "grep|vim" > %s""" % file)

print (os.path.getsize(file))
if os.path.getsize(file) == 0:
        Checkserverdown()
        os.system("/usr/sbin/nginx")
        print (os.path.getsize(file))
        os.system("""ps -ef  |grep nginx  |grep -Ev "grep|vim" > %s""" % file)
        if os.path.getsize(file) == 0:
                Checkserverstilldown()
                os.system("/usr/sbin/nginx")
        else:
                Checkserverup()