开发脚本自动部署及监控-CFANZ编程社区

I、部署nginx反向代理三个web服务，调度算法使用加权轮询；

#!/bin/sh

 

ngxStatus=`ps aux | grep -v grep |grep -c nginx`

 

function ngxProxyInstall() {

if [ -e /usr/sbin/nginx ];then

    echo "nginx already installed"

    exit 110

else

    yum install epel-release -y -q

    yum install gcc-* glibc-* openssl openssl-devel pcre pcre-devel zlib zlib-devel -y -q

    yum install nginx -y -q

    echo "install nginx successful"

fi

if [ -f /etc/nginx/nginx.conf ];then

    /bin/cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak

    sed -ri '/^http/a\\t upstream luchuangao { \n\t server 192.168.152.135 weight=3;\n\t server 192.168.152.136;\n\t server 192.168.152.137;\n\t }' /etc/nginx/nginx.conf

    sed -ri '/^ *location \/ \{/a\\t\t proxy_pass http://luchuangao;' /etc/nginx/nginx.conf

    echo "Configuration successful"

fi

if [ $ngxStatus -lt 2 ];then

    systemctl start nginx

    echo "Start nginx successful"

fi

}

 

function nfsInstall() {

if [ -e /usr/sbin/rpcinfo ];then

    echo "nfs already installed"

    exit 111

else

    yum install rpcbind nfs-utils -y -q

    echo "install NFS successful"

fi

 

if [ ! -d /share ];then

    mkdir -p /share

    chmod -R o+w /share

fi

echo '/share 192.168.152.0/24(rw,sync,fsid=0)' > /etc/exports

systemctl enable rpcbind.service

systemctl enable nfs-server.service

systemctl start rpcbind.service

systemctl start nfs-server.service

echo "Start NFS successful"

}

 

ngxProxyInstall

nfsInstall

II、所有web服务使用共享存储nfs，保证所有web都对其有读写权限，保证数据一致性；

#!/bin/sh

ngxStatus=`ps aux | grep -v grep |grep -c nginx`

ipAddress="192.168.152.134"

function ngxWebInstall(){

if [ -e /usr/sbin/nginx ];then

    echo "nginx already installed"

    exit 110

else

    #yum install gcc-* glibc-* openssl openssl-devel pcre pcre-devel zlib zlib-devel -y -q

    yum install nginx -y -q

    echo "install nginx successful"

fi

if [ -f /etc/nginx/nginx.conf ];then

    /bin/cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak

    sed  -ri '/^ *location \/ \{/a\\t\t root /data/www/html;\n\t\t index index.html;' /etc/nginx/nginx.conf

    mkdir -p /data/www/html

    echo `hostname` > /data/www/html/index.html

    echo "Configuration successful"

fi

if [ $ngxStatus -lt 2 ];then

    systemctl start nginx

    echo "Start nginx successful"

fi

}

 

function nfsInstall(){

if [ ! -e /usr/sbin/rpcinfo ];then

    yum install rpcbind nfs-utils -y -q

    echo "install NFS successful"

fi

systemctl enable rpcbind.service

systemctl enable nfs-server.service

systemctl start rpcbind.service

systemctl start nfs-server.service

mount -t nfs $ipAddress:/share /data/www/html/

echo "welcome luchuangao" > /data/www/html/test.html

}

 

ngxWebInstall

nfsInstall

步骤一：准备发送邮件的工具2.编写监控脚本，监控集群内 Nginx、NFS 服务存活状态，内存、磁盘剩余率检测，异常则发送报警邮件

#!/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'] = '你是风儿我是沙，缠缠绵绵回我家'

    msg['From'] = 'python4_mail@163.com'

    msg['To'] = 'python4_recvmail@163.com'

    user = 'python4_mail'

    pwd = 'sbalex3714'

    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)

步骤三：然后新建监控脚本sysCheck.sh步骤二：将上述文件内容拷贝到/usr/bin/my_mail并chmod+x /usr/bin/my_mail

#!/bin/sh

 

function ngxMonitor(){  #监控nginx服务

ps aux | grep nginx| grep -v grep &>/dev/null

if [ $? -ne 0 ];then

    msg="TIME:$(date +%F_%T)

         HOSTNAME:$(hostname)

         IPADDR:$(/usr/sbin/ifconfig |awk 'NR==2{print $2}')

         MSG:Nginx program is crash, Waiting to restart"

    echo $msg

    /usr/bin/my_mail $msg

    systemctl restart nginx

fi

}

 

function nfsMonitor(){ #监控nfs服务

ps aux | grep nfs| grep -v grep &>/dev/null

if [ $? -ne 0 ];then

    msg="TIME:$(date +%F_%T)

         HOSTNAME:$(hostname)

         IPADDR:$(/usr/sbin/ifconfig |awk 'NR==2{print $2}')

         MSG:NFS program is crash, Waiting to restart"

    echo $msg

    /usr/bin/my_mail $msg

    systemctl restart nginx

fi

}

 

function memMonitor(){  #监控内存

mem_use=`free | awk 'NR==2{print $3}'`

mem_total=`free | awk 'NR==2{print $2}'`

mem_per=`echo "scale=2;$mem_use/$mem_total"|bc -l |cut -d . -f2`

 

if [ ! -e /usr/bin/bc ];then

    yum install bc -y -q

    echo "bc install successful"

fi

if (( $mem_per > 10 )); then

    msg="TIME:$(date +%F_%T)

         HOSTNAME:$(hostname)

         IPADDR:$(/usr/sbin/ifconfig |awk 'NR==2{print $2}')

         MSG:Memory usage exceeds the limit,current value is ${mem_per}%"

         echo $msg

         /usr/bin/my_mail $msg

fi

}

 

function diskMonitor(){  #监控磁盘

space_use=`df $disk |awk 'NR==2{print $5}'|cut -d% -f1`

 

if [ $space_use -gt 80 ];then

    msg="TIME:$(date +%F_%T)

         HOSTNAME:$(hostname)

         IPADDR:$(/usr/sbin/ifconfig |awk 'NR==2{print $2}')

         MSG:Disk space usage exceeds the limit,current value is ${space_use}%"

    echo $msg

    /usr/bin/my_mail $msg

fi

}

 

 

ngxMonitor  &>>/tmp/monitor.log

nfsMonitor  &>>/tmp/monitor.log

memMonitor  &>>/tmp/monitor.log

diskMonitor &>>/tmp/monitor.log

* * * * * /shell/sysCheck.sh3.编写计划任务，定时运行监控脚本，完成监控操作