Python 无法使用Nginx反向代理连接到Websocket服务器

我想用反向代理设置websocket服务器。为此，我创建了一个docker compose，其中包含一个简单的python websocket服务器和一个nginx反向代理

设置：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

docker compose.yml:

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

nginx.conf:

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

Websocket服务器：

Dockerfile:

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

server.py:

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

导入异步IO
导入WebSocket
导入操作系统
异步def回显（websocket，路径）：
websocket中消息的异步：
打印（信息）
等待websocket.send（消息）
asyncio.get_event_loop（）。运行_直到完成(
网匣。发球（回声，'0.0.0'，8765））
asyncio.get_event_loop（）.永远运行_（）

帮助运行测试的简单ws-client（我还使用了Chrome扩展）：

client.py:

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

导入异步IO
导入WebSocket
异步定义hello（uri）：
与websocket异步。作为websocket连接（uri）：
等待websocket。发送（“你好，世界！”）
resp=wait websocket.recv（）
打印（resp）
asyncio.get_event_loop（）。运行_直到完成(
您好（'ws://localhost:5000'））
#不带反向代理->ws://localhost:8765

问题：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

当我尝试连接（与客户端或使用Chrome扩展）时，出现以下错误：

WebSocket connection to 'ws://localhost:5000/' failed: Connection closed before receiving a handshake response

我的脚步有什么毛病吗

更多信息：

• 当我尝试在没有反向代理的情况下连接到websocket时，它会工作
• my nginx错误日志中未显示任何消息
• 所有配置均基于nginx文档：
• 我已经检查了以下线程：，和

---

谢谢

经过一些研究，我终于找到了问题所在：我将本地nginx配置映射到容器上的错误文件

所以为了修复它，我改变了docker-compose.yml中的卷

发件人：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

至：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

并从nginx.conf中删除了de http：

nginx.conf

 map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }

---

经过一些研究，我终于发现了问题所在：我将本地nginx配置映射到容器上的错误文件

所以为了修复它，我改变了docker-compose.yml中的卷

发件人：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

至：

version: '2.4'
services: 
    wsserver:
        restart: always
        ports: 
            - 8765:8765
        build: 
            context: ./server
            dockerfile: Dockerfile   
    ngproxy:
        image: nginx
        ports: 
            - 8020:80
            - 5000:5000
        restart: always
        depends_on:
            - wsserver
        volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

http {
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
}

FROM python:3
RUN pip install websockets
RUN pip install asyncio
COPY server.py /
CMD [ "python", "./server.py" ]

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.conf

volumes:
            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

并从nginx.conf中删除了de http：

nginx.conf

 map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
 
    upstream websocket {
        server  wsserver:8765;
    }
 
    server {
        listen 5000;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }