Lithium用Nginx做前端代理后端Apache处理请求

最近项目里用到了一个php框架 Lithium  http://lithify.me/  官方只给了Apache的配置，在部署的时候发现用Nginx + PHP-fpm 总是有问题，折腾了一整天都没办法解决，

网上搜了半天，可能是php-fpm这类fcgi在处理一些参数时候的问题，比如说这个 php bug#55208   实在不行，只能换成Nginx做代理，缓存静态文件，其余的丢给后端apache去处理去。

nginx里的配置主要参考了 http://my.oschina.net/u/234530/blog/54310  的例子，做了一些修改，最重要的是try_files

server {
        listen   [::]:80; ## listen for ipv4
        #listen   [::]:80 default ipv6only=on; ## listen for ipv6
        server_name  do.it;
        access_log  off;
        error_log  /var/log/nginx/doit.error.log;
        location / {
                root /opt/web/app/webroot;
                index index.php index.html;
                # Nginx找不到文件时，转发请求给后端Apache
                try_files $uri $uri/ @proxy;
                # css, js 静态文件设置有效期1天
                location ~ ..(js|css)$ {
                        access_log off;
                        expires      1d;
                }
                # 图片设置有效期3天
                location ~ ..(gif|jpg|jpeg|png|bmp|swf)$ {
                        access_log off;
                        expires      3d;
                }
        }
        # 动态文件.php请求转发给后端Apache
        location ~ .php$ {
                # 传递真实IP到后端
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_pass   http://127.0.0.1:8989;
        }
        location @proxy {
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_pass http://127.0.0.1:8989;
        }
        location ~ /.ht {
                deny all;
        }
}

<VirtualHost *:8989>
    ServerAdmin my@localhost
    DocumentRoot /opt/web/app/webroot
    <Directory /opt/web/app/webroot>
            RewriteEngine On
        RewriteCond %{REQUEST_FILENAME} !-d
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteCond %{REQUEST_FILENAME} !favicon.ico$
            RewriteRule ^ index.php [QSA,L]
    </Directory>
    ErrorLog ${APACHE_LOG_DIR}/error.log
    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>