Comment réutiliser les ports dans nginx

# docker exec -it nginx nginx -V
nginx version: nginx/1.15.10
built by gcc 8.2.0 (Alpine 8.2.0)
built with OpenSSL 1.1.1b  26 Feb 2019
...<省略若干行>...

 # tree ./nginx-with-L4-reuse/./nginx-with-L4-reuse/
├── config│   └── nginx
│       ├── conf.d
│       │   └── default.conf
│       ├── fastcgi.conf
│       ├── fastcgi_params
│       ├── mime.types
│       └── nginx.conf
└── docker-compose.yaml

3 directories, 6 files

# docker-compose.yaml
version: "2.4"
services:
  nginx:
    container_name: nginx
    image: nginx:alpine
    network_mode: host
    volumes:
      - ./config/nginx:/etc/nginx/:ro
    ports:
      - "443:443"
    restart: always

user  nginx;
worker_processes  2;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}

stream {
    log_format stream '{"@access_time":"$time_iso8601",'
        '"clientip":"$remote_addr",'
        '"pid":$pid,'
        '"pro":"$protocol",'
        '"ssl_pro": "$ssl_preread_protocol"',
        '"pro":"$protocol",'
        '"stus":$status,'
        '"sent":$bytes_sent,'
        '"recv":$bytes_received,'
        '"sess_time":$session_time,'
        '"up_addr":"$upstream_addr",'
        '"up_sent":$upstream_bytes_sent,'
        '"up_recv":$upstream_bytes_received,'
        '"up_conn_time":$upstream_connect_time,'
        '"up_resp_time":"$upstream_first_byte_time",'
        '"up_sess_time":$upstream_session_time}';

    upstream ssh {
        server 192.168.50.212:22;
    }

    upstream web {
        server 192.168.50.215:443;
    }

    map $ssl_preread_protocol $upstream {
        default ssh;
        "TLSv1.2" web;
        "TLSv1.3" web;
    }

    # SSH and SSL on the same port
    server {
        listen 443;

        proxy_pass $upstream;
        ssl_preread on;
        access_log /var/log/nginx/stream_443.log stream;
    }
}