|
|
|
|
CGI
|
|
|
|
|
===
|
|
|
|
|
|
|
|
|
|
If all other deployment methods do not work, CGI will work for sure.
|
|
|
|
|
CGI is supported by all major servers but usually has a sub-optimal
|
|
|
|
|
performance.
|
|
|
|
|
|
|
|
|
|
This is also the way you can use a Flask application on Google's `App
|
|
|
|
|
Engine`_, where execution happens in a CGI-like environment.
|
|
|
|
|
|
|
|
|
|
.. admonition:: Watch Out
|
|
|
|
|
|
|
|
|
|
Please make sure in advance that any ``app.run()`` calls you might
|
|
|
|
|
have in your application file are inside an ``if __name__ ==
|
|
|
|
|
'__main__':`` block or moved to a separate file. Just make sure it's
|
|
|
|
|
not called because this will always start a local WSGI server which
|
|
|
|
|
we do not want if we deploy that application to CGI / app engine.
|
|
|
|
|
|
|
|
|
|
Creating a `.cgi` file
|
|
|
|
|
----------------------
|
|
|
|
|
|
|
|
|
|
First you need to create the CGI application file. Let's call it
|
|
|
|
|
`yourapplication.cgi`::
|
|
|
|
|
|
|
|
|
|
#!/usr/bin/python
|
|
|
|
|
from wsgiref.handlers import CGIHandler
|
|
|
|
|
from yourapplication import app
|
|
|
|
|
|
|
|
|
|
CGIHandler().run(app)
|
|
|
|
|
|
|
|
|
|
Server Setup
|
|
|
|
|
------------
|
|
|
|
|
|
|
|
|
|
Usually there are two ways to configure the server. Either just copy the
|
|
|
|
|
`.cgi` into a `cgi-bin` (and use `mod_rewrite` or something similar to
|
|
|
|
|
rewrite the URL) or let the server point to the file directly.
|
|
|
|
|
|
|
|
|
|
In Apache for example you can put a like like this into the config:
|
|
|
|
|
|
|
|
|
|
.. sourcecode:: apache
|
|
|
|
|
|
|
|
|
|
ScriptAlias /app /path/to/the/application.cgi
|
|
|
|
|
|
|
|
|
|
For more information consult the documentation of your webserver.
|
|
|
|
|
|
|
|
|
|
.. _App Engine: http://code.google.com/appengine/
|
