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How to use django with mod_wsgi
This is a very simple recipe to deploy a django application with mod_wsgi. This procedure has been tested on Windows but should work on any operating system supported by apache, mod_wsgi, and django.
Installation
The mod_wsgi package can be downloaded from http://code.google.com/p/modwsgi/. Ensure that you work through the mod_wsgi installation and configuration instructions before trying to setup Django. For links to Windows binaries and steps on setting up mod_wsgi Windows see its separate installation instructions but still refer to main installation instructions to work out if mod_wsgi was installed correctly.
Note that the mod_wsgi site provides its own documentation for integrating Django with mod_wsgi. Those instructions go into areas this document does not and in some respect should be seen as being a more definitive source of information. It is also a good idea to read through other documentation on the mod_wsgi site as well, especially in respect to installation, configuration or application issues. Reading the other documentation on the mod_wsgi site will save you a lot of time if you do have any issues as it is quite comprehensive.
Configuration of Apache and mod_wsgi
In this section I will take you through an example, the django application is called dj_survey. This application is part of a project called "dj_project".
The urls.py I used to serve the application with the Django built-in development server:
from django.conf.urls.defaults import * from django.contrib import databrowse import registration urlpatterns = patterns('', # Example: # (r'^dj_project/', include('dj_project.foo.urls')), # Uncomment this for admin: (r'^admin/', include('django.contrib.admin.urls')), (r'^dj_survey/', include('dj_project.dj_survey.urls')), (r'^databrowse/(.*)', databrowse.site.root), (r'^accounts/', include('registration.urls')), (r'^yui/(?P<path>.*)$', 'django.views.static.serve', {'document_root': '../../svn_views/yui/build','show_indexes': True}), (r'^site_media/(?P<path>.*)$', 'django.views.static.serve',{'document_root': './media','show_indexes': True}), )
In httpd.conf you should load the mod_wsgi and include the file containing the configuration of your django application. The trap there is all the path should use "/" and not "\".
httpd.conf
#This should be included somewhere at the top of this file LoadModule wsgi_module modules/mod_wsgi.so #somewhere at the bottom Include "<PATH TO YOUR DJANGO PROJECT>/apache/apache_django_wsgi.conf"
This suppose that you have created a folder named apache in your django project in this folder your should add the following files:
08/16/2007 04:12 PM 1,082 apache_django_wsgi.conf 08/16/2007 04:31 PM 557 dj_survey.wsgi 08/16/2007 04:31 PM 4,362 settings_production.py 08/16/2007 04:09 PM 712 urls_production.py 08/16/2007 04:33 PM 0 __init__.py
Note: There is a file called __init__.py in <PATH TO YOUR DJANGO PROJECT>/apache. In this case <PATH TO YOUR DJANGO PROJECT> is equal to c:\<LONG PATH>\workspace\dj_project
Like in the httpd.conf you should pay attention to the separator. You should use "/" and not "\"
apache_django_wsgi.conf
Alias /site_media/ "<PATH TO YOUR DJANGO PROJECT>/media/" <Directory "<PATH TO YOUR DJANGO PROJECT>/media"> Order allow,deny Options Indexes Allow from all IndexOptions FancyIndexing </Directory> Alias /yui/ "<PATH TO YOUR YUI>/build/" <Directory "<PATH TO YOUR YUI>/build"> Order allow,deny Options Indexes Allow from all IndexOptions FancyIndexing </Directory> Alias /media/ "<PATH TO YOUR DJANGO SRC>/trunk/django/contrib/admin/media/" <Directory "<PATH TO YOUR DJANGO SRC>/trunk/django/contrib/admin/media"> Order allow,deny Options Indexes Allow from all IndexOptions FancyIndexing </Directory> WSGIScriptAlias / "<PATH TO YOUR DJANGO PROJECT>/apache/dj_survey.wsgi" <Directory "<PATH TO YOUR DJANGO PROJECT>/apache"> Allow from all </Directory>
Now here it is the core of the wsgi application. The path there should use "
"as separator.
dj_survey.wsgi
import os, sys #Calculate the path based on the location of the WSGI script. apache_configuration= os.path.dirname(__file__) project = os.path.dirname(apache_configuration) workspace = os.path.dirname(project) sys.path.append(workspace) #Add the path to 3rd party django application and to django itself. sys.path.append('C:\\yml\\_myScript_\\dj_things\\web_development\\svn_views\\django_src\\trunk') sys.path.append('C:\\yml\\_myScript_\\dj_things\\web_development\\svn_views\\django-registration') os.environ['DJANGO_SETTINGS_MODULE'] = 'dj_project.apache.settings_production' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()
Note: If you need to write something in error.log located in the following folder <Your Apache Installation>\Apache2.2\logs you can insert the line below in your WSGI file. In our example this file is called dj_survey.wsgi. This method is very convenient to get the PYTHONPATH correct:
print >> sys.stderr, sys.path
In this file you are defining the settings that will be used by your Django application, in our example this file is called: dj_project.apache.settings_production (Note: ".py" is implicit and should not be added).
There is nothing special in that file except that I am pointing to a special urls.py which reflect the configuration I am using in production.
ROOT_URLCONF = 'dj_project.apache.urls_production'
urls_production.py
from django.conf.urls.defaults import * from django.contrib import databrowse import registration urlpatterns = patterns('', # Example: # (r'^dj_project/', include('dj_project.foo.urls')), # Uncomment this for admin: (r'^admin/', include('django.contrib.admin.urls')), (r'^dj_survey/', include('dj_project.dj_survey.urls')), (r'^databrowse/(.*)', databrowse.site.root), (r'^accounts/', include('registration.urls')), )
Test
Restart apache and now you should be able to enjoy your application served by Apache and mod_wsgi.