Howto configure Apache WSGI for multiple separate Django instances?

Question

I have an apache instance where I have the following

WSGIPythonPath /production/somelocation/django12/lib/python2.4/site-packages/
<VirtualHost 192.168.1.1:443>
        WSGIScriptAlias / /opt/project.wsgi
        .....

My Django 1.5 app apache config looks like,

WSGIPythonPath /production/somelocation/django15/lib/python2.7/site-packages/
<VirtualHost 192.168.1.2:443>
        ....
        WSGIScriptAlias / /opt/project2.wsgi

My /opt/project.wsgi looks like

import os
import sys

# django1.2 virtualenv
import site
site.addsitedir("/production/somelocation/django12/lib/python2.4/site-packages")
.....

However when I go to the site I still get my default django (1.5) instance. What am I missing ?

Bouke · Accepted Answer · 2013-07-29 11:50:27Z

8

+50

The other answers mention setting the python path, however using WSGIPythonPath or WSGIPythonHome are not correct. The WSGIPythonPath / WSGIPythonHome can only be set server-wide, so no different paths per virtualhost.

You would want to use the WSGIDaemonProcess python-path and home arguments to set the python path and your apps home directory per virtualhost.

Also, within your code there is no need to adjust python paths; just make sure your virtualhost config is correct.

answered Jul 29, 2013 at 11:50

Bouke

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6 Comments

DevLounge Over a year ago

I was talking about python-path, as you just said. See my second answer, since I couldn't access my httpd-vhost file until now.

felix001 Over a year ago

Thanks, Ive used the WSGIDaemonProcess and this works however, Im not setting a user or group and then using "WSGIApplicationGroup %{GLOBAL}".So Im not sure if this is a security concern ?

Bouke Over a year ago

You should not do this when hosting multiple sites on the same machine. You can use user and group arguments to set the user/group as which the WSGI should be executed.

DevLounge Over a year ago

Could you please decide who gave you the proper answer? Thanks.

felix001 Over a year ago

Ok thanks, so you would you use user1/group1 for site A and user2/group2 for site B ? Thanks for all your help....

|

Mp0int · Accepted Answer · 2013-07-29 08:07:17Z

1

You may need to set WSGIPythonHome since you have different Django installations.

WSGIPythonPath is used to define additional directories, but this option do not set default python installation. So probably, your default python directory also includes django (1.5) and recognize this version as the default django version. I do not know your python and django installation and configuration but this might be the reason.

Additional info for WSGIPythonHome

answered Jul 29, 2013 at 8:07

Mp0int

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Comments

DevLounge · Accepted Answer · 2013-07-29 12:05:17Z

1

This is how I do with Pyramid:

<VirtualHost *:80>
    Servername hackintosh
    DocumentRoot "/Library/WebServer/Documents"
</VirtualHost>


<VirtualHost *:80>
    ServerName modwebsocket.local
    ErrorLog "/PythonProjects/MOD_WEBSOCKET/logs/error_log"
    CustomLog "/PythonProjects/MOD_WEBSOCKET/logs/access_log" common

    WSGIDaemonProcess pyramid-modwebsocket user=apero group=staff threads=4 python-path=/PythonProjects/MOD_WEBSOCKET/lib/python2.7/site-packages
    WSGIProcessGroup pyramid-modwebsocket

    WSGIScriptAlias /  /PythonProjects/MOD_WEBSOCKET/wsgi/pyramid.wsgi

    <Directory "/PythonProjects/MOD_WEBSOCKET/wsgi">
        WSGIProcessGroup pyramid-modwebsocket
        Order allow,deny
        Allow from all
    </Directory>

</VirtualHost>

<VirtualHost *:80>
    ServerName ai.local
    ErrorLog "/PythonProjects/AI/logs/error_log"
    CustomLog "/PythonProjects/AI/logs/access_log" common

    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    WSGIDaemonProcess pyramid-ai user=apero group=staff threads=4 python-path=/PythonProjects/AI/lib/python2.7/site-packages
    WSGIProcessGroup pyramid-wizard

    WSGIScriptAlias /  /PythonProjects/AI/wsgi/pyramid.wsgi

    <Directory "/PythonProjects/AI/wsgi">
        WSGIProcessGroup pyramid-ai
        Order allow,deny
        Allow from all
    </Directory>

</VirtualHost>

answered Jul 29, 2013 at 12:05

DevLounge

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1 Comment

DevLounge Over a year ago

So, did this and my initial abswer, solve your issue? If yes thanks for giving points.

Graham Dumpleton · Accepted Answer · 2013-08-02 02:08:43Z

1

This topic and the typical causes are detailed in:

http://blog.dscpl.com.au/2012/10/requests-running-in-wrong-django.html

There is not enough information in your question to properly evaluate which of the problems you are encountering.

answered Aug 2, 2013 at 2:08

Graham Dumpleton

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