websocket反向代理

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
    }
    server {
        location /socket/ {
            proxy_pass  http://172.26.1.80:9988/;
            proxy_read_timeout 300s;
            proxy_send_timeout 300s;
            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_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }
}