nginx 日志切分

server {
        listen       80;
        server_name  localhost;
        #charset koi8-r;
        ##时间格式
        if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})") {
                        set $year $1;
                        set $month $2;
                        set $day $3;
           }                                                         
        #日志输出位置 按照时间生成日志文件
        access_log  logs/host.access-$year-$month-$day.log  main;
        location / {
            root   html;
            index  index.html index.htm;
        }