#user  nobody;
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 {
     #开启和关闭gzip模式
        gzip on;

        #gizp压缩起点，文件大于1k才进行压缩
        gzip_min_length 1k;
        # gzip 压缩级别，1-9，数字越大压缩的越好，也越占用CPU时间
        gzip_comp_level 9;

        # 进行压缩的文件类型。
        gzip_types text/plain application/json application/javascript application/x-javascript text/css application/xml text/xml text/javascript image/png image/gif image/jpeg;
        # 是否在http header中添加Vary: Accept-Encoding，建议开启
        gzip_vary on;
        # 设置压缩所需要的缓冲区大小，以4k为单位，如果文件为7k则申请2*4k的缓冲区
        gzip_buffers 4 16k;
        include       mime.types;
        default_type  application/octet-stream;
        sendfile        on;
        client_max_body_size 20m;
        underscores_in_headers on;

     # 定义上游服务器组
        upstream backend_8082 {
            server localhost:8082;
            server v5qy.te.baibaodun.com.cn backup;
            # 可选：设置重试次数和超时时间
            # retry 1; # 如果后端服务器返回错误，重试一次
            # keepalive 32;
        }

        upstream backend_8083 {
            server v5qy.te.baibaodun.com.cn;
            # 可选：设置重试次数和超时时间
            # retry 1;
            # keepalive 32;
        }
		# 使用 map 根据请求头设置 $backend 变量
		map $http_bcx_com_id $backend {
			"O7f4fVUf" backend_8082;
			default backend_8083;
		}

        server {
            listen 80;
            server_name localhost; # 替换为您的域名或IP

            location /dispatch {
                proxy_pass http://$backend;

				# 其他代理设置同上
				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 X-Forwarded-Proto $scheme;

				proxy_connect_timeout 5s;
				proxy_read_timeout 10s;
				proxy_send_timeout 10s;

				proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
				proxy_next_upstream_tries 2;
            }
        }
}