nagios 安装nagiosgraph图形化插件

1、前言

nagios是一款常用的监控软件，与此同时，nagios默认却不支持图形化功能，这对于运维管理人员来说有时候真的是非常不便的。幸好，nagios还可以通过安装nagiosgraph插件来实现图形化显示，下面我们就来看看如何安装实现nagios的图形化。

nagios的安装监控可参考：https://www.jianshu.com/p/bc04a9980edc

2、下载nagiosgraph插件

https://sourceforge.net/projects/nagiosgraph/

[root@nagios ~]# cd /usr/local/src/

[root@nagios src]# tar zxf nagiosgraph-1.5.2.tar.gz

[root@nagios src]# cd nagiosgraph-1.5.2

[root@nagios nagiosgraph-1.5.2]# ./install.pl --install

checking required PERL modules

  Carp...1.11

  CGI... ***FAIL***

  Data::Dumper...2.124

  Digest::MD5...2.39

  File::Basename...2.77

  File::Find...1.14

  MIME::Base64...3.08

  POSIX...1.17

  RRDs... ***FAIL***

  Time::HiRes... ***FAIL***

checking optional PERL modules

  GD... ***FAIL***

  Nagios::Config... ***FAIL***

........

3、修复报错

按照步骤2中出现的FAIL提示，修复安装的依赖关系

[root@nagios nagiosgraph-1.5.2]# yum install -y perl-CGI

[root@nagios nagiosgraph-1.5.2]# yum install perl-rrdtool -y

[root@nagios nagiosgraph-1.5.2]# yum install perl-GD -y

[root@nagios nagiosgraph-1.5.2]# yum install perl-Time-HiRes -y

最后一个Nagios::Config 的安装比较复杂，需要安装cpanm来进行安装。网上有很多解决方式，用cpanm安装的好处在于可以自动解决烦人的依赖关系。

[root@nagios nagiosgraph-1.5.2]# wget http://xrl.us/cpanm -O /usr/bin/cpanm; chmod +x /usr/bin/cpanm

[root@nagios nagiosgraph-1.5.2]# yum install perl-ExtUtils-MakeMaker -y        

[root@nagios nagiosgraph-1.5.2]# cpanm Module::Build

[root@nagios nagiosgraph-1.5.2]# cpanm Nagios::Config

4、完成安装

按照上述步骤修复完成后，再次执行nagiosgraph的安装：

[root@nagios nagiosgraph-1.5.2]# ./install.pl --install

checking required PERL modules

  Carp...1.11

  CGI...3.51

  Data::Dumper...2.124

  Digest::MD5...2.39

  File::Basename...2.77

  File::Find...1.14

  MIME::Base64...3.08

  POSIX...1.17

  RRDs...1.3008

  Time::HiRes...1.9721

checking optional PERL modules

  GD...2.44

  Nagios::Config...36

checking nagios installation

  found nagios exectuable at /usr/local/nagios/bin/nagios

  found nagios init script at /etc/init.d/nagios

checking web server installation

  found apache executable at /usr/sbin/httpd

  found apache init script at /etc/init.d/httpd

......            #后续安装一路按回车键即可

5、编辑nagios.cfg文件

#在该文件中添加下述配置

[root@nagios ~]# cd /usr/local/nagios/etc/

[root@nagios etc]# vim nagios.cfg

# process nagios performance data using nagiosgraph

process_performance_data=1

service_perfdata_file=/tmp/perfdata.log

service_perfdata_file_template=$LASTSERVICECHECK$||$HOSTNAME$||$SERVICEDESC$||$SERVICEOUTPUT$||$SERVICEPERFDATA$

service_perfdata_file_mode=a

service_perfdata_file_processing_interval=30

service_perfdata_file_processing_command=process-service-perfdata-for-nagiosgraph

6、编辑commands.cfg文件

#添加下述配置段

[root@nagios etc]# cd /usr/local/nagios/etc/objects/

[root@nagios objects]# vim commands.cfg 

define command {

  command_name process-service-perfdata-for-nagiosgraph

  command_line /usr/local/nagiosgraph/bin/insert.pl

}

7、编辑apache的httpd.conf文件

#添加下述配置段

[root@nagios objects]# cd /etc/httpd/conf/

[root@nagios conf]# vim httpd.conf 

Include /usr/local/nagiosgraph/etc/nagiosgraph-apache.conf

8、验证nagiosgraph的配置信息

在浏览器输入网址:http://IP//nagiosgraph/cgi-bin/showconfig.cgi 进行查看

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9、修改模板文件，定义动作URL

[root@nagios conf]# cd /usr/local/nagios/etc/objects/

[root@nagios objects]# vim templates.cfg 

define service {

        name nagiosgraph

        action_url /nagiosgraph/cgi-bin/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$

        register 0

}

10、修改服务配置文件

[root@nagios objects]# vim newlinux.cfg

define service{

    use generic-service,nagiosgraph            #在自定义的服务中调用此前定义的动作URL服务

    host_name newlinux

    service_description Load

    check_command check_nrpe!check_load

    }

11、重启httpd和nagios服务

[root@nagios conf]# service httpd restart

Stopping httpd: [ OK ]

Starting httpd: [ OK ]

[root@nagios conf]# service nagios restart

Running configuration check...

Stopping nagios: done.

Starting nagios: done.

每个主机的服务项在/usr/local/nagiosgraph/var/rrd 下都有对应的主机目录及rrd文件。

[root@nagios objects]# ll /usr/local/nagiosgraph/var/rrd/

localhost/ newlinux/  

[root@nagios objects]# ll /usr/local/nagiosgraph/var/rrd/newlinux/

total 456

-rw-r--r--. 1 nagios nagios 94768 Sep 20 17:58 CHECK%20USER___users.rrd

-rw-r--r--. 1 nagios nagios 94768 Sep 20 17:53 Load___load15.rrd

-rw-r--r--. 1 nagios nagios 94768 Sep 20 17:53 Load___load1.rrd

-rw-r--r--. 1 nagios nagios 94768 Sep 20 17:53 Load___load5.rrd

-rw-r--r--. 1 nagios nagios 24184 Sep 20 17:52 Total%20procs___procs.rrd

-rw-r--r--. 1 nagios nagios 24184 Sep 20 17:53 Zombie___procs.rrd

-rw-r--r--. 1 nagios nagios 24184 Sep 20 17:53 Zombie___zombies.rrd

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