nginx灰度环境

 1、nginx.conf

     split_clients "${remote_addr}AAA" $request_type {

         25% "abtest";

         * "online";

     }

 2、mobile.vipkid.com.cn.conf

     if ($request_type = "abtest") {

         set $group _abtest;

     }

                 proxy_pass http://mobile_vipkid_com_cn$group;

 upstream mobile_vipkid_com_cn_abtest {

         server 10.0.3.141:8080 weight=10 max_fails=3 fail_timeout=5s;

         server 10.0.4.141:8080 weight=10 max_fails=3 fail_timeout=5s;

    }

 upstream mobile_vipkid_com_cn {

         server 10.0.3.142:8080 weight=10 max_fails=3 fail_timeout=5s;

         server 10.0.4.142:8080 weight=10 max_fails=3 fail_timeout=5s;

    }