我用Django，Uvicorn，Nginx和Redis构建了一个Docker容器，并且正在使用django-channels，但是当我运行这个容器时，它说它无法连接到WebSocket，这在浏览器控制台中可以看到：
第一个月
当我使用Django的runserver命令进行开发时，它工作得很好，但是当我包含Nginx和Uvicorn时，它就坏了。
Entrypoint.sh:

gunicorn roomway.asgi:application --forwarded-allow-ips='*' --bind 0.0.0.0:8000 -k uvicorn.workers.UvicornWorker

字符串
Nginx配置：

upstream django {
    server app:8000;
}

map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}

server {
    listen 8080;

    location /static {
        alias /vol/static;
    }

    location /ws/ {
        proxy_pass http://0.0.0.0:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }

    location / {
        proxy_pass http://django;
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_redirect off;
        proxy_buffering off;
    }
}

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settings.py:

CHANNEL_LAYERS={
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            'hosts': [('redis', 6379)],  #Redis port
        }
    }
}

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处理套接字的JS文件：

var wsStart = "ws://"    
var webSocketEndpoint =  wsStart + window.location.host + '/ws/notifications/'
const notificationSocket = new WebSocket(webSocketEndpoint)

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asgi.py:

application = ProtocolTypeRouter({
    "http": django_asgi_app,
    "websocket": AuthMiddlewareStack(
        URLRouter([
            url(r'^ws/notifications/', NotificationConsumer.as_asgi()),
            path("ws/<str:room_name>/", ChatConsumer.as_asgi())            
        ])
    )
})

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Nginx抛出了上面代码的错误：

[error] 23#23: *4 connect() failed (111: Connection refused) while connecting to upstream, server: , request: "GET /ws/notifications/ HTTP/1.1", upstream: "http://0.0.0.0:8000/ws/notifications/", host: "127.0.0.1:8080"

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当我将proxy_pass改为http://django而不是0.0.0.0时，Nginx不再抛出该错误，但我在控制台上得到了相同的错误。这次Django也抛出了这些警告：

[WARNING] Unsupported upgrade request.       
[WARNING] No supported WebSocket library detected. Please use 'pip install uvicorn[standard]', or install 'websockets' or 'wsproto' manually.

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