Added static file serving WSGI app, fixes #507.

Author: mboersma

Procfile

@@ -1 +1 @@
-web: gunicorn_django -c gconfig.py
+web: gunicorn deis.wsgi -b 0.0.0.0:8000 -w 8 -n deis --log-level debug

deis/wsgi.py

@@ -6,29 +6,33 @@
 named ``application``. Django's ``runserver`` and ``runfcgi`` commands discover
 this application via the ``WSGI_APPLICATION`` setting.
 
-Usually you will have the standard Django WSGI application here, but it also
-might make sense to replace the whole Django WSGI application with a custom one
-that later delegates to the Django one. For example, you could introduce WSGI
-middleware here, or combine a Django application with an application of another
-framework.
-
 """
 
 from __future__ import unicode_literals
 import os
 
-# We defer to a DJANGO_SETTINGS_MODULE already in the environment. This breaks
-# if running multiple sites in the same mod_wsgi process. To fix this, use
-# mod_wsgi daemon mode with each site in its own daemon process, or use
-# os.environ["DJANGO_SETTINGS_MODULE"] = "deis.settings"
+from django.core.wsgi import get_wsgi_application
+import static
+
+
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "deis.settings")
 
-# This application object is used by any WSGI server configured to use this
-# file. This includes Django's development server, if the WSGI_APPLICATION
-# setting points here.
-from django.core.wsgi import get_wsgi_application
-application = get_wsgi_application()
 
-# Apply WSGI middleware here.
-# from helloworld.wsgi import HelloWorldApplication
-# application = HelloWorldApplication(application)
+class Dispatcher(object):
+    """
+    Dispatches requests between two WSGI apps, a static file server and a
+    Django server.
+    """
+
+    def __init__(self):
+        self.django_handler = get_wsgi_application()
+        self.static_handler = static.Cling(os.path.dirname(os.path.dirname(__file__)))
+
+    def __call__(self, environ, start_response):
+        if environ['PATH_INFO'].startswith('/static'):
+            return self.static_handler(environ, start_response)
+        else:
+            return self.django_handler(environ, start_response)
+
+
+application = Dispatcher()

dev_requirements.txt

@@ -17,6 +17,7 @@ python-etcd==0.3.0
 pyrax==1.6.2
 PyYAML==3.10
 redis==2.8.0
+static==1.0.2
 South==0.8.4
 
 # Deis client requirements

gconfig.py

@@ -17,4 +17,5 @@ python-etcd==0.3.0
 pyrax==1.6.2
 PyYAML==3.10
 redis==2.8.0
+static==1.0.2
 South==0.8.4