nginx 负载均衡设置

upstream lucky5{
    server 127.0.0.1:3000  weight=10;
    server 127.0.0.1:3001 weight=5;
}
server{
    location /
    {
        proxy_pass http://test;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header REMOTE-HOST $remote_addr;

        add_header my-backendIP $upstream_addr; # 后端转发的代理服务器
        add_header my-backendCode $upstream_status; # 响应状态

        add_header X-Cache $upstream_cache_status; # 命中缓存

        add_header Cache-Control no-cache; 不缓存

        #Set Nginx Cache
        # proxy_ignore_headers Set-Cookie Cache-Control expires;
        # proxy_cache cache_one;
        # proxy_cache_key $host$uri$is_args$args;
        # proxy_cache_valid 200 304 301 302 1m;
        # expires 12h;
    }
}

https://blog.csdn.net/caijunsen/article/details/83002219

http://nginx.org/en/docs/http/ngx_http_upstream_module.html#upstream