Shell (4) Alarm system-Main script, configuration file, monitoring project

Alarm System

First, the alarm system main script

(Script storage Address:/usr/local/sbin/)

1. Create a script to store the directory: mkdir /usr/local/sbin/mon/

1.1 creating directories for each functional module---storing scripts

CD    /usr/local/sbin/mon/

mkdir bin conf shares log

/bin/storing the main script

/conf/Storing the configuration file

/shares Storing individual monitoring scripts

/log/Storing logs

The main script is the gateway to the entire system, which The script is placed in the /usr/local/sbin/mon/bin/directory

2. Main script content:

main.sh Content

#!/bin/bash

#Written by Aming.

# whether to send mail switch, when the system maintenance, this switch is very useful to prevent the alarm when the alarm also send mail

Export send=1

# filter IP address, specifically which machine alarm

Export addr= '/sbin/ifconfig |grep-a1 ' ens33: ' |awk '/inet/{print $} '

Dir= ' pwd '

# requires only the last level of directory name

Last_dir= ' echo $dir |awk-f '/' {print $NF} '

# The purpose of this is to ensure that we are in the bin directory when the script is executed, otherwise the monitoring scripts, mails, and logs may not be found

if [$last _dir = = "Bin"] | | [$last _dir = = "bin/"]; Then

Conf_file= ". /conf/mon.conf "

Else

echo "You shoud cd bin dir"

Exit

Fi

exec 1>>. /log/mon.log 2>> /log/err.log

echo "' Date +"%F%T "' Load average '

/bin/bash. /shares/load.sh

#先检查配置文件中是否需要监控502, whether this monitoring 502 is defined in the configuration file script

If Grep-q ' to_mon_502=1 ' $conf _file; Then

Export log= ' grep ' logfile= ' $conf _file |awk-f ' = ' {print $} ' |sed ' s///g '

/bin/bash. /shares/502.sh

Fi

2.1: Where the script is Dir=pwd, is to get the path of the current file; Last_dir= ' echo $dir |awk-f '/' {print $NF} ' is the last level of directory under the current file path

2.2 conf_file= ". /conf/mon.conf "is the definition of the configuration file path

second, alarm system configuration file

Configuration file Contents: (actually very big content is each use)

The contents and values in the configuration file are based on your actual situation.

mon.conf Content

# to config-the options if to monitor

# # Defines the server address, port, and user, password for MySQL

To_mon_cdb=0 # #0 or 1, default 0,0 not monitor, 1 monitor

db_ip=10.20.3.13

db_port=3315

Db_user=username

db_pass=passwd

# # HTTPD If 1 is monitored, 0 not monitored

To_mon_httpd=0

# # PHP If it is 1 monitor, 0 not monitor

To_mon_php_socket=0

# # http_code_502 need to define the path to the access log

To_mon_502=1

Logfile=/data/log/xxx.xxx.com/access.log

# # Request_count defines the log path and domain name, which are based on your own monitoring content

To_mon_request_count=0

Req_log=/data/log/www.discuz.net/access.log

Domainname=www.discuz.net

The meaning of these to_mon_xxx=0/1 defined here is to determine whether or not to monitor in the master file.

third, alarm system monitoring Project

1.load.sh Content

#! /bin/bash

# #Writen by # #

load= ' uptime |awk-f ' average: ' {print $} ' |cut-d ', '-f1|sed ' s///g ' |cut-d.-f1 '

If [$load-gt] && [$send-eq "1"]

Then

echo "$addr ' date +%t ' load is $load" ... /log/load.tmp

/bin/bash. /mail/mail.sh [email protected] "$addr \_load: $load" ' Cat. /log/load.tmp '

# #发送邮件的主题内容

Fi

Fi

echo "' Date +%t ' load is $load" # #输出当前负载值

2. Monitoring Project 502.sh content

#! /bin/bash

# #获得一分钟前时间戳, in order to get 502 times in a minute

D= ' date-d '-1 min "+%h:%m"

C_502= ' grep: $d: $log |grep ' 502 ' |wc-l '

If [$c _502-gt] && [$send = = 1]; Then

echo "$addr $d 502 count is $c _502" ... /log/502.tmp

/bin/bash. /mail/mail.sh $addr \_502 $c _502. /log/502.tmp

Fi

echo "' Date +%t ' 502 $c _502"

3. The monitoring item obtains the disk usage condition:

disk.sh Content

#! /bin/bash

# #Writen by aming##

Rm-f. /log/disk.tmp

For R in ' Df-h |awk-f ' [%]+ ' {print $} ' |grep-v use '

Do

If [$r-gt] && [$send-eq "1"]//set to meet the conditions

Then

echo "$addr ' date +%t ' disk useage is $r" >> /log/disk.tmp

Fi

If [-F. /LOG/DISK.TMP]

Then

Df-h >>. /log/disk.tmp

/bin/bash. /mail/mail.sh $addr \_disk $r. /log/disk.tmp

echo "' Date +%t ' disk useage is Nook"

Else

echo "' Date +%t ' disk useage is OK"

Fi

which

Df-h |awk-f ' [%]+ ' {print $} ' |grep-v use to get Current disk usage (grep-v use is used for the English language (lang=en) in the current system )

Awk-f ' [%]+ ' here is a regular statement, with one or more spaces or% as delimiters, more precise separation, convenient to intercept the required fields (from the content can be found that there is a lot of space characters)

Shell (4) Alarm system-Main script, configuration file, monitoring project