Development program implementation of NGINX agent node status check and Web interface display

Introduction to Implementing Features:

Using shell programs and HTTP services to implement a smart monitoring Nginx agent node status check, and then through the Web interface real-time refresh display results, is not a little surprised by such a tall program? Then take a look at it!
To the employer: this course can reflect the students shell programming skills, as well as the Nginx Proxy Enterprise actual combat and the ability to harness.

Different students of the three ways to share the implementation, you crossing, you see which classmate better, please comment.

The first implementation of the script: Youjinyi video download See address : http://down.51cto.com/data/1914201

#!/bin/shport=80conf_path= "/application/nginx/conf" conf_file= "nginx.conf" html_path= "/application/nginx/html" Html_file= "Monitor.html" rs= ($ (grep web-a  "$conf _path/$conf _file" |grep -v  ' # ' |awk -F "[  :]+ "  ' {print $2} ')) Function proxy_delrs () {   local ip=$1 sed  -i  '/' $ip '/s/\ (. *\),/\1 down;/g '   $conf _path/$conf _file " &> /dev/null  [ $? -eq 0 ] && return 0 | |  return 1}function proxy_addrs () { local ip=$1 sed -i  '/' $ip '/s/\ (. *\) Down;/\1;/g '   "$conf _path/$conf _file" &NBSP;&AMP;&GT;&NBSP;/DEV/NULL&NBSP;[&NBSP;$?&NBSP;-EQ&NBSP;0&NBSP;]  && return 0 | |  return 1}function proxy_getwebservertype () { local ip=$1 local srvtype=$ ( curl -i -s  $ip |awk  '/^server/{print $2} ' |cut -b1-5)  if [  "$ Srvtype " ==  "Apach"  ];then  return 1 elif [  "$srvType"  ==  "Nginx"  ];then  return 0 else  return 2 fi}function proxy_ Getrsstatus () { local ip=$1 if cat  $conf _path/$conf _file|grep  "$ip: $port \ (. *\) Down; "  &>/dev/null;then  return 0 else  return 1 fi}function  proxy_checkrshealth () { local ip=$1 if [  "$ (nmap  $ip  -p  $port |awk   '/80/{print $2} ') '  ==  ' open '  ];then  return 0 else    return 1 fi}function proxy_checkhtml () {  if [ ! -f  "$html _ path/$html _file " ];then  proxy_htmlinit fi}function proxy_sendstattohtml () {  local rs=$1 local string=$2 if [  $string  ==  "Good"  ];then   sed -i /' &LT;TD&NBSp;id= ' ${rs} ' _stat '/s#.*# '     <td id= ' $rs ' _stat align= ' center '  bgcolor= ' Green ' > Good </td> ' #g   $html _path/$html _file  &>/dev/null else   sed -i /' <td id= ' ${rs} ' _stat '/s#.*# '     <td id= ' $rs ' _stat align= "center"  bgcolor= "Red" > Bad </td> ' #g   $html _path/$html _file  &>/dev/null fi  proxy_getWebServerType  $rs  case $? in 0)    sed -i /' <td id= ' ${rs} ' _type '/s#.*# '     <td id= ' ${rs} ' _ type align= "center" > Nginx </td> ' #g   $html _path/$html _file  &>/ dev/null ;;  1)   sed -i /' <td id= ' ${rs} ' _type '/s#.*# '     <td  Id= ' ${rs} ' _type align= "center" > Apache </td> ' #g   $html _path/$html _file   &>/dev/null ;;  2)   sed -i /' <td id= ' ${rs} ' _type '/s#.*# '     <td  Id= ' ${rs} ' _type align= "center" > Unknow </td> ' #g   $html _path/$html _file   &>/dev/null ;;  *)  ;;  esac}function proxy_htmlinit () { echo   ' 
  Second classmate Implementation script: Wang Shuo download to see the video address : http://down.51cto.com/data/1914011 
 
#!/bin/bash#author: stanley wang#mail:  #Version:  1.0#description: this is a  script for nginx proxy health check.### #def  vars######### #RS = (   172.16.1.191  172.16.1.192) port=80html_file= "/var/html/www/index.html" declare -a RSTATUS## #main ############# #function  checkrs () {  local i=0  for  (i=0;i<${#RS [*] };i++))   do    rstatus[$I]= ' nmap ${rs[$I]} -p  $PORT |grep  " Open "|wc -l '   done}function output () {    if [ ${rstatus[0]}  -eq 0 ];then       #echo   "${rs[$i]} is down!"       sed -i  ' 22 s/.*/<td align= ' Center " bgcolor=" Red "><font size=" >down!<\/font><\/td>/g   $html _file     Elif [ ${rstatus[0]} -eq 1 ];then       #echo   "${rs[$i]} is ok!"       sed -i  ' 22 s/.*/<td align= ' Center " bgcolor=" Green "><font size=" >ok!<\/font><\/td>/g   $html _file     fi    if [ ${rstatus[1]} -eq 0 ];then        #echo   "${rs[$i]} is down!"       sed -i  ' 28 s/.*/<td align= ' Center " bgcolor=" Red "><font size=" >down!<\/font><\/td>/g   $html _file     elif [ ${rstatus[1]} -eq 1 ];then       #echo   "${RS [$i]}  is ok! "       sed -i  ' 28 s/.*/<td align= ' Center " bgcolor=" Green "><font size=" >ok!<\/font>&Lt;\/td>/g '   $html _file    fi}while truedo  checkrs   Outputsleep 2done
  Third Implementation script: Liu Lei download watch video tutorial : http://down.51cto.com/data/1914011 
 
#!/bin/bashrs_arr= (     10.0.0.11    10.0.0.22     10.0.0.33    ) file_location=/var/html/test.htmlfunction web_result {     rs= ' curl -i -s $1|awk  ' nr==1{print $2} '      return  $rs}function new_row {cat >>  $file _location <<eof<tr> <td bgcolor= "$4" >$1</td><td bgcolor= "$4" >$2</td><td bgcolor= "$4" > $3</td></tr>eof}function auto_html {    web_result $2     rs=$?    if [  $rs  -eq 200 ]     then new_row $1 $2 up green    else new_row $1  $2 down red    fi}main () {while truedocat >>  $file _ Location <<eof< h4>he status of rs :
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Development program implementation of NGINX agent node status check and Web interface display