Question

我有一个奇怪的烧瓶问题。我有一个运行在VM上的端口5000上的简单应用程序。我有一个config.py文件，它正在设置侦听端口和IP。这是我的配置：

class BaseConfig(object):
    DEBUG = False
    TESTING = False
    SECRET_KEY = 'my_secret_key_which_is_not_so_secret'
    SERVER_NAME = '0.0.0.0:5000'

class DevConfig(BaseConfig):
    DEBUG = True
    TESTING = True

class TestConfig(BaseConfig):
    DEBUG = False
    TESTING = True

我还在__init__.py文件中添加了以下行：app.config.from_object('config.DevConfig')。当我启动应用程序时，这是日志：

$ python app.py
 * Serving Flask app "webapp" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: XXX-XXX-XXX
/home/ubuntu/programming/lib/python3.6/site-packages/flask/sessions.py:217: UserWarning: The session cookie domain is an IP address. This may not work as intended in some browsers. Add an entry to your hosts file, for example "localhost.localdomain", and use that instead.
  'The session cookie domain is an IP address. This may not work'
my.ip.add.ress - - [04/Dec/2018 10:09:16] "GET / HTTP/1.1" 404 -
my.ip.add.ress - - [04/Dec/2018 10:09:17] "GET /favicon.ico HTTP/1.1" 404 -
127.0.0.1 - - [04/Dec/2018 10:15:31] "GET / HTTP/1.1" 404 -
127.0.0.1 - - [04/Dec/2018 10:16:28] "GET /netemulator HTTerror 404 -

因此，当我尝试从PC上访问它时，会得到404错误，这与尝试使用elinks内部访问它时遇到的错误相同。如果删除SERVER_NAME中的config.py行，我可以使用elinks从VM内访问它，并且可以看到它已正确加载，但无法从PC上访问它。。

$ python app.py
 * Serving Flask app "webapp" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: XXX-XXX-XXX
127.0.0.1 - - [04/Dec/2018 10:18:34] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [04/Dec/2018 10:18:36] "GET /netemulator HTTP/1.1" 200 -

无法从外部访问在VM上运行的烧瓶

0 个答案: