ngx_pagespeed 是一个 Nginx 的扩展模块，可以加速你的网站，减少页面加载时间，它会自动将一些提升web性能的实践应用到网页和相关的资源（CSS、JS和图片）上，无需你修改内容和流程。

功能包括：
图片优化: stripping meta-data, dynamic resizing, recompression
CSS & JavaScript 压缩、合并等
小资源的内联
推迟图片和 JS 的加载
HTML 重写
延长缓存扩展

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

系统环境:  CentOS6.3 x64
NGINX:      nginx-1.4.1
pagespeed:  ngx_pagespeed-1.6.29.5

一.部署环境：
1.关闭iptables和SELINUX
# service iptables stop
# setenforce 0
# vi /etc/sysconfig/selinux
---------------
SELINUX=disabled
---------------

2.安装依赖包
# yum install gcc-c++ pcre-devel zlib-devel zip wget gcc-c++ ncurses ncurses-devel cmake make perl bison openssl openssl-devel gcc* libxml2 libxml2-devel curl-devel libjpeg* libpng* freetype*

3.同步时间
# ntpdate asia.pool.ntp.org

二.安装ngx_pagespeed
1.配置ngx_pagespeed
# wget https://github.com/pagespeed/ngx_pagespeed/archive/release-1.6.29.5-beta.zip
# unzip release-1.6.29.5-beta.zip 
# cd ngx_pagespeed-release-1.6.29.5-beta/

2.配置psol模块
# wget https://dl.google.com/dl/page-speed/psol/1.6.29.5.tar.gz
# tar -xzvf 1.6.29.5.tar.gz

三.安装nginx
1.安装前的配置
先添加nginx用户和用户组
# groupadd nginx
# useradd -g nginx -s /bin/false -M nginx

2.解压编译源码包，这里采用最新的源码包1.4.1
# wget http://nginx.org/download/nginx-1.4.1.tar.gz
# tar -xvzf nginx-1.4.1.tar.gz
# cd nginx-1.4.1/
# ./configure --prefix=/usr/local/nginx --pid-path=/var/run/nginx.pid --lock-path=/var/lock/nginx.lock  --user=nginx --group=nginx --with-http_ssl_module --with-http_dav_module --with-http_flv_module --with-http_realip_module --with-http_gzip_static_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-debug --http-client-body-temp-path=/var/tmp/nginx/client --http-proxy-temp-path=/var/tmp/nginx/proxy --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi --http-scgi-temp-path=/var/tmp/nginx/scgi --add-module=$HOME/ngx_pagespeed-release-1.6.29.5-beta

注：--add-module=$HOME/ngx_pagespeed-release-1.6.29.5-beta为编译时加载ngx_pagespeed模块
  这将使用二进制PageSpeed优化库，但它也有可能建立从源PSOL
  ngx_pagespeed目前不支持Windows或MacOS因为不底层PSOL库。

# make && make install

创建缓存目录
# mkdir -p /var/tmp/nginx/client

3.创建启动脚本
# vi /etc/init.d/nginx
-------------------------------
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemin
#
# chkconfig:  - 85 15
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#              proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:    /usr/local/nginx/logs/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
lockfile=/var/lock/subsys/nginx
start() {
  [ -x $nginx ] || exit 5
  [ -f $NGINX_CONF_FILE ] || exit 6
  echo -n $"Starting $prog: "
  daemon $nginx -c $NGINX_CONF_FILE
  retval=$?
  echo
  [ $retval -eq 0 ] && touch $lockfile
  return $retval
}
stop() {
  echo -n $"Stopping $prog: "
  killproc $prog -QUIT
  retval=$?
  echo
  [ $retval -eq 0 ] && rm -f $lockfile
  return $retval
}
restart() {
  configtest || return $?
  stop
  start
}
reload() {
  configtest || return $?
  echo -n $"Reloading $prog: "
  killproc $nginx -HUP
  RETVAL=$?
  echo
}
force_reload() {
  restart
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
  status $prog
}
rh_status_q() {
  rh_status >/dev/null 2>&1
}
case "$1" in
  start)
      rh_status_q && exit 0
      $1
      ;;
  stop)
      rh_status_q || exit 0
      $1
      ;;
  restart|configtest)
      $1
      ;;
  reload)
      rh_status_q || exit 7
      $1
      ;;
  force-reload)
      force_reload
      ;;
  status)
      rh_status
      ;;
  condrestart|try-restart)
      rh_status_q || exit 0
          ;;
  *)
      echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-
reload|configtest}"
      exit 2
esac
---------------------------
# chmod 755 /etc/init.d/nginx
# chkconfig --add nginx
# service nginx start
# chkconfig nginx on

四.配置nginx加载ngx_pagespeed模块
1.创建pagespeed缓存目录
# mkdir /tmp/ngx_pagespeed_cache
# chmod -R 777 /tmp/ngx_pagespeed_cache

2.配置nginx加载
1).配置nginx主配置文件
# vi /usr/local/nginx/conf/nginx.conf
在http层级末行添加:
-------------------------------------
# 缓存路径
pagespeed FileCachePath /tmp/ngx_pagespeed_cache;
# 加载模块
pagespeed on;
# 添加vhost配置文件
include "/usr/local/nginx/conf/vhosts/*.conf";
-------------------------------------

2).配置ngx_pagespeed.inc参数
# vi /usr/local/nginx/conf/ngx_pagespeed.inc
-----------------------------------
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" { add_header "" ""; }
location ~ "^/ngx_pagespeed_static/" { }
location ~ "^/ngx_pagespeed_beacon$" { }
location /ngx_pagespeed_statistics { allow 127.0.0.1; deny all; }
location /ngx_pagespeed_message { allow 127.0.0.1; deny all; }
location /pagespeed_console { allow 127.0.0.1; deny all; }
------------------------------------

3).配置vhost
# cd /usr/local/nginx/conf/
# mkdir vhosts
# vi /usr/local/nginx/conf/vhosts/default.conf
------------------------------
server {
    server_name www.abc.com;

    pagespeed on;
    include ngx_pagespeed.inc;

    location / {
    index index.html index.php;
    root /usr/local/nginx/html/www.abc.com;
    }
    location ~ \.php$ {
          root          html;
          fastcgi_pass  127.0.0.1:9000;
          fastcgi_index  index.php;
          fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html/www.abc.com$fastcgi_script_name;
          include        fastcgi_params;
    }
  }
------------------------------
重启服务
# service nginx restart

3.验证ngx_pagespeed模块是否加载
# curl -I localhost | grep X-Page-Speed

注:显示X-Page-Speed: 1.6.29.5-3346说明加载成功

浏览器访问首页，查看JS源文件对比模块是否加载

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