我本地的nginx.conf，配合proxifier可以做灰度测试。

nginx-proxy-cache.conf

worker_processes  1;

error_log  logs/error.log;

pid        logs/nginx.pid;

events {
    # use epoll;
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    #在日志格式中加入$upstream_cache_status
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                  '$status $body_bytes_sent "$http_referer" '
                  '"$http_user_agent" "$http_x_forwarded_for"'
                  '"$upstream_cache_status" $request_time';              
    access_log logs/access.log main;


    sendfile        on;

    keepalive_timeout  65;
    
    server_names_hash_bucket_size 64;

    # Have nginx do the compression.
    gzip  on;
    gzip_comp_level     1;
    gzip_disable        msie6;
    gzip_proxied        any;

    # text/html mime type is automatically included for gzip, have to add the rest
    gzip_types          text/plain text/css application/x-javascript text/xml application/xml application/rss+xml text/javascript;

    ## Begin Proxy Cache Config
    #keys_zone=cache1:100m 表示这个zone名称为cache1，分配的内存大小为100MB
    #/usr/local/nginx/proxy_cache_dir/cache1 表示cache1这个zone的文件要存放的目录
    #levels=1:2 表示缓存目录的第一级目录是1个字符，第二级目录是2个字符，即/usr/local/nginx/proxy_cache_dir/cache1/a/1b这种形式
    #inactive=1d 表示这个zone中的缓存文件如果在1天内都没有被访问，那么文件会被cache manager进程删除掉
    #max_size=10g 表示这个zone的硬盘容量为10GB
    proxy_cache_path  data/proxy_cache_dir/nantianmen  levels=1:2 keys_zone=nantianmen:100m inactive=1d max_size=2g;
    proxy_temp_path   data/proxy_temp_dir 1 2;

    #设置缓存的key
    # Putting the host name in the cache key allows different virtual hosts to share the same cache zone
    proxy_cache_key "$scheme://$host$request_uri";

    # Pass some client identification headers back to the backend_server  
    proxy_set_header   Host             $host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

    upstream backend_server { 
      server   127.0.0.1:8080 weight=1 max_fails=2 fail_timeout=30s; 
    }

    # Cache different return codes for different lengths of time 
    # We cached normal pages for 10 minutes
    proxy_cache_valid 200 302  10m;
    proxy_cache_valid 404      1m;

    # Virtual host definition 
    server {
        listen 80;
        server_name mbrowser.baidu.com;

        #$upstream_cache_status表示资源缓存的状态，有HIT MISS EXPIRED UPDATING STALE BYPASS几种状态
        add_header X-Nginx-Cache $upstream_cache_status;
        location ~ /cache {
            #设置资源缓存的zone
            proxy_cache nantianmen;

            # If it's not in the cache pass back to the backend-server 
            proxy_pass http://backend_server;
        }

        #
        # Proxy all remaining content to the backend-server
        #
        location / {
            proxy_pass  http://backend_server;
        }
    }

    #配置Purge
    location ~ /purge(/.*) {
        #允许的IP
        allow 127.0.0.1;
        #10网段的都可以访问
        allow 192.168.10.0/24;
        deny all;  #其他的禁止访问
        proxy_cache_purge cache1 $scheme://$host$request_uri;
    }

}

nginx.conf

worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;


    ## HTTPS server
    #server {
    #    listen       443;
    #    server_name  localhost;

    #    ssl                  on;
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_timeout  5m;

    #    ssl_protocols  SSLv2 SSLv3 TLSv1;
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers   on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

  server {
        listen       80;

        server_name     victor.qq.com weikeduo.qq.com wkd.qq.com;

        client_max_body_size 10M;

        if ( $host = victor.qq.com ) {
                rewrite ^/(.*)$   http://wkd.qq.com/$1 break;
        }

        if ( $host = weikeduo.qq.com ) {
                rewrite ^/(.*)$   http://wkd.qq.com/$1 break;
        }

        location ~ ^/mobile {
                proxy_pass http://10.149.21.223:9011;
        }

        location ~ ^/buyer {
                proxy_pass http://10.149.21.223:9010;
        }

        location  ~ /portal {
                proxy_pass http://10.6.206.48:8582;
        }

        location  / {
               # proxy_pass http://127.0.0.1:8080;
               # proxy_pass http://10.191.135.16:9006;
               proxy_pass http://10.191.134.158:9006;
        }
    }

    server {
        listen       80;

        server_name     fuwu.paipai.com;

        client_max_body_size 10M;

        location  / {
               # proxy_pass http://127.0.0.1:8080;
               #proxy_pass http://172.23.1.122:9008;
               #proxy_pass http://10.137.141.85:9008;
               #proxy_pass http://10.130.129.205:9008;
               proxy_pass http://172.27.28.177:9008;
        }
    }

    server {
        listen       80;

        server_name   api.paipai.com;

        client_max_body_size 10M;

        location  / {
               #proxy_pass http://172.23.1.122:9001;
               proxy_pass http://10.130.129.205:9001;
               
        }
    }

    server {
        listen       80;

        server_name   api.yixun.com apitest.yixun.com;

        client_max_body_size 10M;

        location  / {
               proxy_pass http://10.6.223.106:9008;
        }
    }

}