Docker + django_extensions + jupyter: OSError: [Errno 99] Cannot assign requested address

Question

我正在尝试在包含 Django 应用程序的容器中设置 jupyter。我正在使用 django-extensions 以利用 shell_plus 命令。但是，当我运行它时：

docker-compose exec app python manage.py shell_plus --notebook

我收到以下错误：

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.8/site-packages/django_extensions/management/commands/shell_plus.py", line 125, in run_from_argv
    return super(Command, self).run_from_argv(argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 328, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 369, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python3.8/site-packages/django_extensions/management/utils.py", line 62, in inner
    ret = func(self, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django_extensions/management/commands/shell_plus.py", line 517, in handle
    shell()
  File "/usr/local/lib/python3.8/site-packages/django_extensions/management/commands/shell_plus.py", line 253, in run_notebook
    app.initialize(notebook_arguments)
  File "<decorator-gen-117>", line 2, in initialize
  File "/usr/local/lib/python3.8/site-packages/traitlets/config/application.py", line 87, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/notebook/notebookapp.py", line 1769, in initialize
    self.init_webapp()
  File "/usr/local/lib/python3.8/site-packages/notebook/notebookapp.py", line 1490, in init_webapp
    self.http_server.listen(port, self.ip)
  File "/usr/local/lib/python3.8/site-packages/tornado/tcpserver.py", line 151, in listen
    sockets = bind_sockets(port, address=address)
  File "/usr/local/lib/python3.8/site-packages/tornado/netutil.py", line 174, in bind_sockets
    sock.bind(sockaddr)
OSError: [Errno 99] Cannot assign requested address

Answer 1

我想通了。需要使用 NOTEBOOK_KERNEL_SPEC_NAMES:

为 django-extensions 传递一些 additional notebook arguments

NOTEBOOK_ARGUMENTS = [
    "--ip", "0.0.0.0",
    "--port", "8888",
    "--allow-root"
]

您还需要将 DJANGO_ALLOW_ASYNC_UNSAFE 添加到值为 True 的环境变量中。否则，您将在尝试使用 Django ORM 执行查询时遇到错误。

另外，一定要在容器中暴露端口。就我而言，我使用的是 docker-compose.yml，因此它将是：

ports:
  - 8000:8000
  - 8888:8888 # this is the port at which notebook runs

设置之后，运行下面的命令将非常有效：

docker-compose exec app python manage.py shell_plus --notebook

Answer 2

我在使用需求 tornado==5.1.1 and django-extensions==2.2.3 时遇到了同样的错误。有一个循环强制 port 8888 绑定两次。第二次失败了，因为第一次绑定了。我想，这应该作为一个错误进入 django-extensions。其他需求。这是在使用 django 2.2 的 ubuntu 机器上。

Docker + django_extensions + jupyter: OSError: [Errno 99] Cannot assign requested address

Docker + django_extensions + jupyter: OSError: [Errno 99] Cannot assign requested address

django

docker

jupyter-notebook

django-extensions