交互式添加nagios主机和服务脚本

        搭建好nagios 服务器之后,剩下的工作其实就是将欲监控的主机和服务添加到配置文件中,这过程其实有很多重复性的工作,所以我写了个交互式脚本,可以一步到位。

 

脚本思路分析:

首先分析下主机和服务的配置:

主机:

define host{
        use     linux-server,hosts-pnp
        host_name     
  client
        alias                 client
        address         192.168.56.105
}

 

服务:

define service{
        use     generic-service,services-pnp
        host_name       
client
        service_description      check_load
        check_command           check_nrpe!check_load
        max_check_attempts 5
        normal_check_interval 1
}

 

注:上面红色部分为变化的部分,其余的都是固定的。也就是说需要将红色部分设置成变量。

接下来的问题就是配置服务的时候,如何一次性读入多个服务,实现一步到位。也就是说,我可以一次性添加多个服务,而无需重复性的运行脚本。下面我是通过数组来实现的。

 

脚本如下:

添加主机:

#!/bin/bash
echo "Please input the infomations of the server you want to set."
read -p "hostname:" HNAME
read -p "alias:" ALIAS
read -p "IP:" IP
cat << EOF > /usr/local/nagios/etc/hosts/${HNAME}.cfg
define host{
use     linux-server,hosts-pnp
host_name       ${HNAME}
alias                  ${ALIAS}
address            ${IP}
}
EOF
service nagios reload

 

 

添加服务:

#!/bin/bash
read -p "Please input your hostname :" HNAME
read -p "please input the number of the services you want to set :" n
echo "Please input the services' name :"
read -a SHELL
for ((i=0;i<=${n}-1;i++))
do
echo "${SHELL[$i]}" >> /tmp/name.txt
done
while read line
do
cat << EOF >> /usrl/local/nagios/etc/services/${HNAME}.cfg
define service{
use     generic-service,services-pnp
host_name       ${HNAME}
service_description     check_${line}
check_command           check_nrpe!check_${line}
max_check_attempts 5
normal_check_interval 1
}
EOF
echo "$line"
done < /tmp/name.txt
rm -rf /tmp/name.txt
service nagios reload

 

运行结果如下:(注意:下面蓝色部分为交互式输入部分)

添加主机:

[root@localhost nagios]# ./autochost.sh 
Please input the infomations of the server you want to set.
hostname:
slave3
alias:slave3
IP:192.168.56.110
Running configuration check...done.
Reloading nagios configuration...done


[root@localhost nagios]# cat etc/hosts/slave3.cfg 
define host{
        use     linux-server,hosts-pnp
        host_name       slave3
        alias           slave3
        address         192.168.56.110
}

 

 

添加服务:

[root@localhost nagios]# ./autocservice.sh 
Please input your hostname :
slave3
please input the number of the services you want to set :4
Please input the services' name :
http ssh mysql ftp

 

[root@localhost nagios]# cat etc/services/slave3.cfg 
define service{
 use     generic-service,services-pnp
        host_name      
 slave3
        service_description     check_http
        check_command           check_nrpe!check_http
        max_check_attempts 5
        normal_check_interval 1
 }
define service{
 use     generic-service,services-pnp
        host_name       
slave3
        service_description     check_ssh
        check_command           check_nrpe!check_ssh
        max_check_attempts 5
        normal_check_interval 1
 }
define service{
 use     generic-service,services-pnp
        host_name       
slave3
        service_description     check_mysql
        check_command           check_nrpe!check_mysql
        max_check_attempts 5
        normal_check_interval 1
 }
define service{
 use     generic-service,services-pnp
        host_name       
slave3
        service_description     check_ftp
        check_command           check_nrpe!check_ftp
        max_check_attempts 5
        normal_check_interval 1
 }

 

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