Python 错误502：websocket握手期间出错

我有一个django应用程序，它在django频道中制作，使用Gunicorn、Nginx和Daphne在AWS上托管。WebSocket在localhost上运行得非常好，但是在部署之后，我得到了

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到“ws://www.searchopal.com/ws/chat/z68qxzn1/”的WebSocket连接失败：WebSocket握手期间出错：意外响应代码：502

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日志如下所示：`

 HTTP/1.1", upstream: "http://127.0.0.1:8001/ws/chat/z68qxzn1/", host: "www.searchopal.com"
2020/11/25 10:03:52 [error] 1051#1051: *311 connect() failed (111: Connection refused) while connecting to upstream, client: 103.116.251.158, server: ***********, request: "GET /ws/chat/z68qxzn1/ HTTP/1.1", upstream: "http://127.0.0.1:8001/ws/chat/z68qxzn1/", host: "www.searchopal.com"
2020/11/25 10:04:18 [error] 1051#1051: *313 connect() failed (111: Connection refused) while connecting to upstream, client: 103.116.251.158, server: ***********,  request: "GET /ws/chat/z68qxzn1/ HTTP/1.1", upstream: "http://127.0.0.1:8001/ws/chat/z68qxzn1/", host: "www.searchopal.com"
2020/11/25 10:04:18 [error] 1051#1051: *315 connect() failed (111: Connection refused) while connecting to upstream, client: 103.116.251.158, server: ***********, request: "GET /ws/chat/z68qxzn1/ HTTP/1.1", upstream: "http://127.0.0.1:8001/ws/chat/z68qxzn1/", host: "www.searchopal.com"

Settings.py具有以下功能：

CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            'hosts': [('127.0.0.1', 6379)],
        },
    },
}

我应该在通道层中添加我的AWS实例IP还是我的域？