Automatic deployment and monitoring of Linux development scripts

Automatic deployment and monitoring of Linux development scripts

Automated deployment and monitoring of development scripts
First, scripting automatic deployment of reverse proxy, web, NFS;
Requirements:
1, the deployment of Nginx reverse proxy three Web services, scheduling algorithm using weighted polling;

#!/bin/shNgxstatus= ' PS aux | Grep-v grep |grep-c nginx ' function Ngxproxyinstall () {if[-e/usr/sbin/Nginx];then Echo"Nginx already installed"Exit110ElseYum 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"fiif[-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 192.168.10.27 weight=3;\n\t Server 192.168.10.28;\n\t server 192.168.10 .29;\n\t}'/etc/nginx/nginx.conf sed-ri'/^ *location \ \{/a\\t\t proxy_pass Http://luchuangao;'/etc/nginx/nginx.conf Echo"Configuration Successful"fiif[$ngxStatus-lt 2];then systemctl start nginx echo"Start Nginx Successful"fi} function Nfsinstall () {if[-e/usr/sbin/rpcinfo];then Echo"NFS already installed"Exit111ElseYum Install rpcbind NFS-utils-y-Q Echo"Install NFS Successful"fiif[!-d/Share];then mkdir-P/share chmod-R o+w/Sharefiecho'/share 192.168.10.0/24 (rw,sync,fsid=0)'>/etc/Exportssystemctl enable Rpcbind.servicesystemctl enable NFS-server.servicesystemctl start Rpcbind.servicesystemctl start NFS-Server.serviceecho"Start NFS Successful"} ngxproxyinstallnfsinstall

Three Web Services weighted polling

2, all Web services use shared storage NFS, to ensure that all the web has read and write permissions to ensure data consistency;

#!/bin/shNgxstatus= ' PS aux | Grep-v grep |grep-c Nginx ' ipAddress="192.168.10.26"function Ngxwebinstall () {if[-e/usr/sbin/Nginx];then Echo"Nginx already installed"Exit110Else    #Yum install gcc-* glibc-* OpenSSL openssl-devel pcre pcre-devel zlib zlib-devel-y-QYum Install nginx-y-Q Echo"Install Nginx Successful"fiif[-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"fiif[$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"Fisystemctl enable Rpcbind.servicesystemctl enable NFS-server.servicesystemctl start Rpcbind.servicesystemctl start NFS-Server.servicemount-T NFS $ipAddress:/share/data/www/html/Echo"Welcome Luchuangao">/data/www/html/test.html} ngxwebinstallnfsinstall

shared NFS, consistent data

Second, write a monitoring script, monitor the cluster of all service survival status, memory, disk residual rate detection, abnormal send alarm mail

Step One: Prepare the tool for sending mail

#!/usr/bin/python#-*-coding:utf-8-*-ImportSYSImportSmtplibImportEmail.mime.multipartImportEmail.mime.text Server='smtp.163.com'Port=' -' defSendMail (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('Mail sent successfully e-Mail has been sent!')  if __name__=='__main__': Msg=Email.mime.multipart.MIMEMultipart () msg['Subject'] ='memory disk usage exceeds set standards, please hurry home and see'msg[' from'] ='[email protected]'msg[' to'] ='[email protected]'User='Python4_mail'pwd='sbalex3714'content='%s\n%s'%('\ n'. Join (Sys.argv[1:4]),' '. Join (Sys.argv[4:]))#format processing, specifically for our message formattxt= Email.mime.text.MIMEText (Content, _charset='Utf-8') Msg.attach (TXT)

Detecting Anomalies

Step two: Copy the above file contents to/usr/bin/my_mail

Chmod+x  /usr/bin/my_mail

Step three: Then create a new monitoring script

Vim syscheck.sh

#!/bin/shfunction Ngxmonitor () {#Monitoring Nginx ServicePS aux | grep nginx| Grep-v grep &>/dev/NULLif[ $? -NE 0];then msg="time:$ (date +%f_%t)hostname:$ (HOSTNAME) ipaddr:$ (/usr/sbin/ifconfig |awk'Nr==2{print $}') Msg:nginx Program isCrash, waiting to restart"Echo $msg/usr/bin/my_mail $msg systemctl Restart Nginxfi} function Nfsmonitor () {#Monitoring NFS ServicesPS aux | grep nfs| Grep-v grep &>/dev/NULLif[ $? -NE 0];then msg="time:$ (date +%f_%t)hostname:$ (HOSTNAME) ipaddr:$ (/usr/sbin/ifconfig |awk'Nr==2{print $}') Msg:nfs Program isCrash, waiting to restart"Echo $msg/usr/bin/my_mail $msg systemctl Restart Nginxfi} function Memmonitor () {#Monitoring MemoryMem_use= ' Free | Awk'Nr==2{print}'' Mem_total= ' Free | Awk'Nr==2{print $}'' 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"fiif(($mem _per > 10 )); Then msg="time:$ (date +%f_%t)hostname:$ (HOSTNAME) ipaddr:$ (/usr/sbin/ifconfig |awk'Nr==2{print $}') msg:memory usage exceeds the Limit,current value is${mem_per}%"Echo $msg/usr/bin/my_mail $msgfi} function Diskmonitor () {#Monitoring DiskSpace_use= ' DF $disk |awk'Nr==2{print}'|cut-d%-F1 'if[$space _USE-GT 80];then msg="time:$ (date +%f_%t)hostname:$ (HOSTNAME) ipaddr:$ (/usr/sbin/ifconfig |awk'Nr==2{print $}') Msg:disk space usage exceeds the Limit,current value is${space_use}%"Echo $msg/usr/bin/my_mail $msgfi} ngxmonitor&>>/tmp/Monitor.lognfsmonitor&>>/tmp/Monitor.logmemmonitor&>>/tmp/Monitor.logdiskmonitor&>>/tmp/monitor.log

syscheck.sh

Third, write the scheduled task, run the monitoring script regularly, complete the monitoring operation

* * * * * */shell/syscheck.sh

Automatic deployment and monitoring of Linux development scripts