nagios平台从apache迁移到nginx
nginx的性能远远优于apache,但由于nagios的web界面中包含php和c-cgi程序,因此需要两套fcgi管理工具(并非必须)和两套解释器(必须)。php用php-cgi跑就可以,c-cgi我选用fcgiwrap。下面介绍安装/配置步骤。
php-fpm:是为PHP打的一个FastCGI管理补丁,可以平滑变更php.ini配置而无需重启php-cgi
Spawn-fcgi:是lighttpd的一个分支项目,是一个cgi进程的管理器
● php 打php-fpm补丁,编译时启用--enable-fastcgi --enable-fpm 参数,使用php-fpm管理php-cgi。php安装详细步骤参见 张宴文章:http://blog.s135.com/nginx_php_v5/
● c-cgi 使用 Spawn-fcgi 管理 ,利用fcgiwrap驱动。fcgiwrap 介绍参见http://nginx.localdomain.pl/wiki/FcgiWrap
php-cgi 监听 127.0.0.1:9000
fcgiwrap 监听 127.0.0.1:10000
nagios 安装配置不是本文重点,略过。web 目录如下:
/usr/local/nagios/share
安装spawn-fcgi
wget http://download.lighttpd.net/spawn-fcgi/releases-1.6.x/spawn-fcgi-1.6.3.tar.gz tar xf spawn-fcgi-1.6.3.tar.gz cd /usr/local/src/spawn-fcgi-1.6.3 ./configure --prefix=/usr/local/spawn-fcgi make && make install
安装fcgi库
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/fcgi-2.4.0-10.el6.x86_64.rpm wget http://dl.fedoraproject.org/pub/epel/6/x86_64/fcgi-devel-2.4.0-10.el6.x86_64.rpm rpm -ivh fcgi-2.4.0-10.el6.x86_64.rpm rpm -ivh fcgi-devel-2.4.0-10.el6.x86_64.rpm
【注:以上fcgi软件的rpm为RHEL6对应版本的,如果是5系列请安装RHEL5对应版本的fcgi库,RHEL5软件下载地址如下:
fcgi: http://flexbox.sourceforge.net/centos/5/x86_64/fcgi-2.4.0-10.el5.x86_64.rpm
fcgi-devel:http://flexbox.sourceforge.net/centos/5/x86_64/fcgi-devel-2.4.0-10.el5.x86_64.rpm
】
安装fcgiwrap
fcgiwrap wiki --> http://nginx.localdomain.pl/wiki/FcgiWrap
最新版本为gnosek-fcgiwrap-1.1.0-0-g333ff99.tar.gz
cd gnosek-fcgiwrap-333ff99/ autoreconf -i ./configure --prefix=/usr/local/fcgiwrap make && make install
创建一个shell脚本来用spawn-fcgi 启动fcgiwrap实例
vi /usr/local/bin/c-fcgi.sh #!/bin/sh /usr/local/spawn-fcgi/bin/spawn-fcgi -f /usr/local/fcgiwrap/bin/fcgiwrap -a 127.0.0.1 -p 10000-F 3 -P /var/run/fastcgi-c.pid -u daemon -g daemon chmod +x /usr/local/bin/c-fcgi.sh
参数含义如下:
-f <fcgiapp> 指定调用FastCGI的进程的执行程序位置
-a <addr> 绑定到地址addr
-p <port> 绑定到端口port
-s <path> 绑定到unixsocket的路径path
-C < children> 指定产生的FastCGI的进程数(仅用于PHP)
-F <children> 指定产生的FastCGI的进程数
-P <path> 指定产生的进程的PID文件路径
-u和-g FastCGI使用什么身份(-u用户-g用户组)运行,这里使用nginx的用户和组daemon运行
创建一个系统启动进程,方便使用service 和chkconfig 命令管
vi /etc/init.d/c-fcgi #!/bin/bash # c-fcgi - this script starts and stops the fcgiwrap instance # # chkconfig: - 96 28 # description: c-fcgi # processname: c-fcgi C_SCRIPT=/usr/local/bin/c-fcgi.sh RETVAL=0 case "$1" in start) echo "Starting fastcgi" $C_SCRIPT RETVAL=$? ;; stop) echo "Stopping fastcgi" killall -9 fcgiwrap RETVAL=$? ;; restart) echo "Restarting fastcgi" killall -9 fcgiwrap $C_SCRIPT RETVAL=$? ;; *) echo "Usage: c-fastcgi {start|stop|restart}" exit 1 ;; esac exit $RETVAL # <span style="color: #0000ff;">chkconfig --add c-fcgi</span> # <span style="color: #0000ff;">chkconfig c-fcgi on</span> # <span style="color: #0000ff;">service c-fcgi start</span>
验证启动,是否提供了相应的端口
#netstat -tulnp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 32629/php-cgi tcp 0 0 127.0.0.1:10000 0.0.0.0:* LISTEN 20039/fcgiwrap
#ps -ef | grep fcgiwrap | grep -v grep daemon 20039 1 0 15:20 ? 00:00:00 /usr/local/bin/fcgiwrap daemon 20040 1 0 15:20 ? 00:00:00 /usr/local/bin/fcgiwrap daemon 20041 1 0 15:20 ? 00:00:00 /usr/local/bin/fcgiwr
#ps -ef | grep php-cgi | grep -v grep nginx 22046 1 0 Jul10 ? 00:00:00 /usr/bin/php-cgi nginx 22047 22046 0 Jul10 ? 00:00:00 /usr/bin/php-cgi nginx 22048 22046 0 Jul10 ? 00:00:00 /usr/bin/php-cgi nginx 22049 22046 0 Jul10 ? 00:00:00 /usr/bin/php-cgi nginx 22050 22046 0 Jul10 ? 00:00:00 /usr/bin/php-cgi nginx 22051 22046 0 Jul10 ? 00:00:00 /usr/bin/php-cgi
配置nginx相关nagios设置
server { listen 80; server_name nagios.icoffer.cn; root /usr/local/nagios/share; index index.php; auth_basic "Welcome to Jobkoo Nagios Monitor System!"; auth_basic_user_file ./htpasswd; location /nagios{ alias /usr/local/nagios/share/; } location ~ .*\.cgi?$ { root /usr/local/nagios/sbin; rewrite ^/nagios/cgi-bin/(.*)\.cgi /$1.cgi break; fastcgi_pass 127.0.0.1:10000; fastcgi_index index.cgi; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_read_timeout 500; include fastcgi_params; fastcgi_buffers 8 128k; } }
配置Nagios Nginxweb认证
htpasswd -c /etc/nginx/conf.d/htpasswd admin cat /etc/nginx/conf.d/htpasswd admin:QqbxsY3jdkOpQ
若没有htpasswd命令,请安装httpd-tools包
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