centos8 nginx1.16启用stream功能tcp转发

默认dnf安装是不能使用steam功能的，会提示stream 模块无法识别。

dnf install nginx-mod-stream

steam 配置实例：
nginx.conf 顶层和http模块同级

##add by chunk
stream {

    server {
        listen     18088;
        #TCP traffic will be forwarded to the "stream_backend" upstream group
        proxy_pass 172.19.201.xxx:18088;
    }
    }

http {
    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  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   600;
    types_hash_max_size 2048;
    client_max_body_size 100M;
    fastcgi_connect_timeout 600;
    fastcgi_send_timeout 600;
    fastcgi_read_timeout 600;
    send_timeout 600; 
}