Nginx简易配置文件(三)（文件缓存）

server {
    listen 80;
    listen 443 ssl;
    server_name user.17.net userapi.17.net;
    access_log logs/user/access.log main;
    error_log logs/user/error.log;

    ssl_certificate /usr/local/nginx/ssl/17track.crt;
    ssl_certificate_key /usr/local/nginx/ssl/17track.key;
    ssl_session_cache    shared:SSL:10m;
    ssl_session_timeout 10m;
    ssl_protocols SSLv3 TLSv1.2;
    ssl_ciphers ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH:!AESGCM;
    ssl_prefer_server_ciphers on;

    location / {

		#	if ( $scheme ~* ^http$ ) {
		#	    rewrite ^(/.*)$  https://$host$1 break;
		#	}

        if ( $host ~* ^user. ) {
            proxy_pass http://cluster_user;
        }

        if ( $host  ~* ^userapi. ) {
            proxy_pass http://cluster_userapi;
        }
		
        set $no_cache '';
        set $cache_key '';

        access_by_lua "
        ngx.var.no_cache = '0'
        ngx.var.cache_key=ngx.var.host ..ngx.var.uri

        if string.find(ngx.var.uri, '^/res/') then
                local newargs=ngx.var.args
             if not newargs then
               newargs=''
             end
           ngx.var.cache_key=ngx.var.host ..ngx.var.uri ..ngx.var.is_args ..newargs
        end

       if ngx.var.http_accept_encoding == nil then

                local newargs1=ngx.var.args
                local newargs2='/ungzip'
                ngx.var.cache_key=ngx.var.host ..ngx.var.uri ..newargs2
          if string.find(ngx.var.uri, '^/res/') then
             if not newargs1 then
               newargs1=''
             end
                 ngx.var.cache_key=ngx.var.host ..ngx.var.uri ..ngx.var.is_args ..newargs1 ..newargs2
          end
        end

        ";

        header_filter_by_lua "
        if ngx.status ~= 200 then
                ngx.var.no_cache = '1'
        end
        ";

        proxy_cache_key $cache_key;
        proxy_cache_bypass $no_cache;
        proxy_no_cache $no_cache;

        proxy_cache cache_one;
        proxy_cache_valid 200 304 10m;
        proxy_cache_valid 301 302 1m;
        proxy_cache_valid any 1m;

        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
        add_header Nginx-Cache $upstream_cache_status;

    }   

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
            root   html;
    }
	
}