Django 频道和 docker-compose 错误

Question

通过 docker 和 docker-compose 运行 runserver 时，出现此错误，无法连接到 django：

django_1            | 2017-01-09 08:24:44,328 - INFO - worker - Listening on channels http.request, websocket.connect, websocket.disconnect, websocket.receive
django_1            | 2017-01-09 08:24:44,329 - INFO - worker - Listening on channels http.request, websocket.connect, websocket.disconnect, websocket.receive
django_1            | 2017-01-09 08:24:44,331 - INFO - worker - Listening on channels http.request, websocket.connect, websocket.disconnect, websocket.receive
django_1            | 2017-01-09 08:24:44,331 - INFO - worker - Listening on channels http.request, websocket.connect, websocket.disconnect, websocket.receive
django_1            | Unhandled exception in thread started by <function wrapper at 0x7ff06bee5d70>
django_1            | Traceback (most recent call last):
django_1            |   File "/usr/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
django_1            |     fn(*args, **kwargs)
django_1            |   File "/usr/local/lib/python2.7/site-packages/channels/management/commands/runserver.py", line 84, in inner_run
django_1            | Performing system checks...
django_1            | 
django_1            | System check identified no issues (0 silenced).
django_1            | January 09, 2017 - 08:24:44
django_1            | Django version 1.10.4, using settings 'backend.settings'
django_1            | Starting Channels development server at http://0.0.0.0:8000/
django_1            | Channel layer default (asgi_redis.core.RedisChannelLayer)
django_1            | Quit the server with CONTROL-C.
django_1            |     ws_protocols=getattr(settings, 'CHANNELS_WS_PROTOCOLS', None),
django_1            |   File "/usr/local/lib/python2.7/site-packages/daphne/server.py", line 41, in __init__
django_1            |     ''' % self.__class__.__name__)
django_1            | DeprecationWarning: 
django_1            |                 The host/port/unix_socket/file_descriptor keyword arguments to Server are deprecated.
django_1            |             

在本地运行时，一切正常。 这是我的 requirements.txt：

Django==1.10.4 psycopg2==2.6.2 频道==0.17.3 asgi-redis==1.0.0

这是我的 docker-compose 文件：

version: '2' 
  services:
    redis:
      image: redis:3.0-alpine
    postgres:
        image: postgres
    django:
        build: ../backend
        command:  python backend/manage.py runserver 0.0.0.0:8000
        volumes:
            - ../backend:/backend
        ports:
            - "8000:8000"
        depends_on:
            - postgres
            - redis
            - django-migration
    django-migration:
        build: ../backend
        command: python backend/manage.py migrate
        volumes:
          - ../backend:/backend
        depends_on:
          - postgres
    client:
        image: node
        command: bash -c "cd src && npm start"
        ports:
            - "3000:3000"

有什么想法吗？

Answer 1

您的容器之间没有链接。尝试将他们团结到网络中。

version: '2' 
  services:
    redis:
      image: redis:3.0-alpine
      networks:
       - django-network

    postgres:
        image: postgres
        networks:
         - django-network

    django:
        build: ../backend
        command:  python backend/manage.py runserver 0.0.0.0:8000
        volumes:
            - ../backend:/backend
        ports:
            - "8000:8000"
        depends_on:
            - postgres
            - redis
            - django-migration
        networks:
         - django-network

    django-migration:
        build: ../backend
        command: python backend/manage.py migrate
        volumes:
          - ../backend:/backend
        depends_on:
          - postgres
        networks:
         - django-network

    client:
        image: node
        command: bash -c "cd src && npm start"
        ports:
            - "3000:3000"
        networks:
         - django-network

     networks:
       tele-cluster-network:
         driver: bridge

Answer 2

原来我使用的是 1.0.0 版本的 daphne，同时我使用的是旧版本的 django 频道，它们不兼容。更新两者都修复了错误。