為nagios裝上pnp4nagios功能

nagios的安裝不再贅述，直接在nagios服務端進行安裝pnp4nagios軟件

安裝展示圖形頁面pnpnagios（rrdtool工具用來存儲數據并畫圖，pnpnagios用來展示圖形數據）

參考：http://docs.pnp4nagios.org/pnp-0.6/install

http://docs.pnp4nagios.org/pnp-0.6

tar xf pnp4nagios-0.6.25.tar.gz

cd pnp4nagios-0.6.25

yum install rrdtool rrdtool-perl -y

./configure

編譯報錯:

checking for Perl Module Time::HiRes... no

configure: error: Perl Module Time::HiRes not available

解決辦法：

yum -y install perl-Time-HiRes

再次編譯

./configure

make all

make install

make install-webconf

make install-config

make install-init

make fullinstall

安裝后出現如下輸出：

*** Configuration summary for pnp4nagios-0.6.25 03-01-2015 ***

  General Options:

  -------------------------         -------------------

  Nagios user/group:                nagios nagios

  Install directory:                /usr/local/pnp4nagios

  HTML Dir:                         /usr/local/pnp4nagios/share

  Config Dir:                       /usr/local/pnp4nagios/etc

  Location of rrdtool binary:       /usr/bin/rrdtool Version 1.3.8

  RRDs Perl Modules:                FOUND (Version 1.3008)

  RRD Files stored in:              /usr/local/pnp4nagios/var/perfdata

  process_perfdata.pl Logfile:      /usr/local/pnp4nagios/var/perfdata.log

  Perfdata files (NPCD) stored in:  /usr/local/pnp4nagios/var/spool

  Web Interface Options:

  -------------------------         -------------------

  HTML URL:                         http://localhost/pnp4nagios

  Apache Config File:               /etc/httpd/conf.d/pnp4nagios.conf

  Review the options above for accuracy.  If they look okay,

  type 'make all' to compile.

由于nagios采用的是4.1.1，pnp4nagios采用的是0.6.25

在官方文檔有好幾種配置pnp4nagios的模式，但是采用sync的模式會一直收集不到數據，而報錯，于是改用了Bulk Mode with NPCD，成功出圖，這里分析配置過程：

參考：http://www.aboutmonitoring.com/installing-nagios-core-4-pnp4nagios-check_mk-nagvis-centos-7-redhat-7/

1、編輯nagios.cfg文件，修改

process_performance_data=0將這個值改為1

##### Values: 1 = process performance data, 0 = do not process performance data

enable_environment_macros=1

2、然后去掉下面兩個注釋，使之啟用：

#host_perfdata_command=process-host-perfdata

#service_perfdata_command=process-service-perfdata

然后在nagios.cfg配置文件中加入以下：

# service performance data

#

service_perfdata_file=/usr/local/pnp4nagios/var/service-perfdata

service_perfdata_file_template=DATATYPE::SERVICEPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tSERVICEDESC::$SERVICEDESC$\tSERVICEPERFDATA::$SERVICEPERFDATA$\tSERVICECHECKCOMMAND::$SERVICECHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$\tSERVICESTATE::$SERVICESTATE$\tSERVICESTATETYPE::$SERVICESTATETYPE$

service_perfdata_file_mode=a

service_perfdata_file_processing_interval=15

service_perfdata_file_processing_command=process-service-perfdata-file

#

# host performance data starting with Nagios 3.0

# 

host_perfdata_file=/usr/local/pnp4nagios/var/host-perfdata

host_perfdata_file_template=DATATYPE::HOSTPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tHOSTPERFDATA::$HOSTPERFDATA$\tHOSTCHECKCOMMAND::$HOSTCHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$

host_perfdata_file_mode=a

host_perfdata_file_processing_interval=15

host_perfdata_file_processing_command=process-host-perfdata-file

各個文件的使用可以查看官方說明

3、修改commands.cfg

define command{

       command_name    process-service-perfdata-file

       command_line    /bin/mv /usr/local/pnp4nagios/var/service-perfdata /usr/local/pnp4nagios/var/spool/service-perfdata.$TIMET$

}

define command{

       command_name    process-host-perfdata-file

       command_line    /bin/mv /usr/local/pnp4nagios/var/host-perfdata /usr/local/pnp4nagios/var/spool/host-perfdata.$TIMET$

}

然后開啟npcd服務：

/usr/local/pnp4nagios/bin/npcd -d -f /usr/local/pnp4nagios/etc/npcd.cfg

4、

[root@RS1 libexec]# /etc/init.d/nagios checkconfig

Running configuration check...

 OK.

[root@RS1 libexec]# service httpd restart

停止 httpd：                                               [確定]

正在啟動 httpd：

[root@RS1 libexec]# /etc/init.d/nagios reload

Running configuration check...

Reloading nagios configuration...

done

5、瀏覽器訪問

http://192.168.1.155/pnp4nagios/

出現報錯：PHP GD extensionPHP GD extension not available

解決：

yum -y install php-gd

[root@RS1 libexec]# /etc/init.d/nagios checkconfig

Running configuration check...

 OK.

[root@RS1 libexec]# service httpd restart

停止 httpd：                                               [確定]

正在啟動 httpd：

[root@RS1 libexec]# /etc/init.d/nagios reload

Running configuration check...

Reloading nagios configuration...

done

再看觀察瀏覽器報錯：

Your environment passed all requirements. Remove or rename the /usr/local/pnp4nagios/share/install.php file now.

解決辦法：

mv /usr/local/pnp4nagios/share/install.php /usr/local/pnp4nagios/share/install.php.ignore

以上只是解決了收集數據的功能，還必須在每一個host、service上展示相應的圖形

設置如下：

編輯templates.cfg模板文件，創建host和service支持pnp4nagios功能：

define host {

   name       host-pnp

   action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_

   register   0

}

define service {

   name       srv-pnp

   action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$

   register   0

}

定義完成之后，最后只需在定義的hosts、services配置文件中加入下操作：

define host{

        use                     linux-server,host-pnp    ; Name of host templates to use

                                                         ; This host definition will inherit all variables that are defined

                                                         ; in (or inherited by) the linux-server host template definition.

        host_name               localhost

        alias                   localhost

        address                 127.0.0.1

        }

define service{

        use                     local-service,srv-pnp   ; Name of service template to use

        host_name               localhost

        service_description     PING

        check_command           check_ping!100.0,20%!500.0,60%

        }

于是整個配置工作完成，訪問瀏覽器出圖如下

至此結合圖形展示成功

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