LINUX学习：Linux基础之-利用shell脚本实现自动监控系统服务

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import sys
import smtplib
import email.mime.multipart
import email.mime.text
server = 'smtp.163.com'
port = '25'
def sendmail(server,port,user,pwd,msg):
    smtp = smtplib.SMTP()
    smtp.connect(server,port)
    smtp.login(user, pwd)
    smtp.sendmail(msg['from'], msg['to'], msg.as_string())
    smtp.quit()
    print('邮件发送成功email has send out !')
if __name__ == '__main__':
    msg = email.mime.multipart.MIMEMultipart()
    msg['Subject'] = 'check your service of nginx and nfs'
    msg['From'] = 'python4_mail@163.com'
    msg['To'] = 'python4_recvmail@163.com'
    user = 'python4_mail'
    pwd = '123456789'
    content='%s\n%s' %('\n'.join(sys.argv[1:4]),' '.join(sys.argv[4:])) #格式处理,专门针对我们的邮件格式

    txt = email.mime.text.MIMEText(content, _charset='utf-8')
    msg.attach(txt)
    sendmail(server,port,user,pwd,msg)

#! /bin/bash
#nginx及nfs服务监控脚本,如果非常,将发送邮件通知
function monitor_nfc() {
systemctl status nginx
nginx=$?
systemctl status nfs
nfs=$?
clear
if [ $nginx -eq 0 ] && [ $nfs -eq 0 ]
        then
        msg="TIME:$(date +%F_%T)
            HOSTNAME:$(hostname)
            IPADDR:$(ifconfig |awk 'NR==2{print $2}')
            MSG:nginx.service and nfs.service is both running"
         echo msg
#        /usr/bin/mail $msg    #服务运行正常,不发送邮件通知
elif [ $nginx -ne 0 ] && [ $nfs -eq 0 ]
        then
        msg="TIME:$(date +%F_%T)
             HOSTNAME:$(hostname)
             IPADDR:$(ifconfig |awk 'NR==2{print $2}')
             MSG:nginx.service is dead,nfs.service is running"
        echo $msg
        /usr/bin/mail $msg
elif [ $nginx -ne 0 ] && [ $nfs -ne 0 ]
        then
        msg="TIME:$(date +%F_%T)
             HOSTNAME:$(hostname)
             IPADDR:$(ifconfig |awk 'NR==2{print $2}')
             MSG:nginx.service and nfs.service is both dead"
        echo $msg
        /usr/bin/mail $msg
elif [ $nginx -eq 0 ] && [ $nfs -ne 0 ]
        then
        msg="TIME:$(date +%F_%T)
             HOSTNAME:$(hostname)
             IPADDR:$(ifconfig |awk 'NR==2{print $2}')
             MSG:nginx.service is running,nfs.service is dead"
        echo $msg
        /usr/bin/mail $msg
fi
}
monitor_nfc &>> /tmp/monitor.log

#! /bin/bash
#首先执行主机的nfc.sh服务监控脚本
/root/nfc.sh
#然后将主机的服务监控脚本nfc.sh和发送邮件文件上传至web机器
for i in {134,135,136}
do
scp /root/nfc.sh 192.168.47.$i:/share/            #将主机的服务监控脚本nfc.sh上传至web机器
scp /usr/bin/mail 192.168.47.$i:/usr/bin/        #将发送邮件文件上传至web机器
ssh root@192.168.47.$i chmod +x /share/nfc.sh        #增加nfc脚本文件的执行权限
ssh root@192.168.47.$i chmod +x /usr/bin/mail        #增加发送邮件文件的执行权限
ssh root@192.168.47.$i /share/nfc.sh            #执行nfc脚本监控功效
done
ssh 192.168.47.133           #最终回到主机终端