diff --git a/doc/source/configuring.rst b/doc/source/configuring.rst
index fcc713f7..63e05253 100644
--- a/doc/source/configuring.rst
+++ b/doc/source/configuring.rst
@@ -554,8 +554,7 @@ The cache middleware should be in your ``glance-api-paste.ini`` in a section
 titled ``[filter:cache]``. It should look like this::
 
   [filter:cache]
-  paste.filter_factory = glance.common.wsgi:filter_factory
-  glance.filter_factory = glance.api.middleware.cache:CacheFilter
+  paste.filter_factory = glance.api.middleware.cache:CacheFilter.factory
 
 A ready-made application pipeline including this filter is defined in
 the ``glance-api-paste.ini`` file, looking like so::
diff --git a/etc/glance-api-paste.ini b/etc/glance-api-paste.ini
index cfa172fe..672e8777 100644
--- a/etc/glance-api-paste.ini
+++ b/etc/glance-api-paste.ini
@@ -44,32 +44,25 @@ use = egg:Paste#urlmap
 paste.app_factory = glance.api.versions:create_resource
 
 [app:apiv1app]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.api.v1.router:API
+paste.app_factory = glance.api.v1.router:API.factory
 
 [app:apiv2app]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.api.v2.router:API
+paste.app_factory = glance.api.v2.router:API.factory
 
 [filter:versionnegotiation]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.api.middleware.version_negotiation:VersionNegotiationFilter
+paste.filter_factory = glance.api.middleware.version_negotiation:VersionNegotiationFilter.factory
 
 [filter:cache]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.api.middleware.cache:CacheFilter
+paste.filter_factory = glance.api.middleware.cache:CacheFilter.factory
 
 [filter:cachemanage]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.api.middleware.cache_manage:CacheManageFilter
+paste.filter_factory = glance.api.middleware.cache_manage:CacheManageFilter.factory
 
 [filter:context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:ContextMiddleware
+paste.filter_factory = glance.common.context:ContextMiddleware.factory
 
 [filter:unauthenticated-context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:UnauthenticatedContextMiddleware
+paste.filter_factory = glance.common.context:UnauthenticatedContextMiddleware.factory
 
 [filter:authtoken]
 paste.filter_factory = keystone.middleware.auth_token:filter_factory
diff --git a/etc/glance-cache-paste.ini b/etc/glance-cache-paste.ini
index 35ab3715..e89ee5ad 100644
--- a/etc/glance-cache-paste.ini
+++ b/etc/glance-cache-paste.ini
@@ -1,15 +1,11 @@
 [app:glance-pruner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.pruner:Pruner
+paste.app_factory = glance.image_cache.pruner:Pruner.factory
 
 [app:glance-prefetcher]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.prefetcher:Prefetcher
+paste.app_factory = glance.image_cache.prefetcher:Prefetcher.factory
 
 [app:glance-cleaner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.cleaner:Cleaner
+paste.app_factory = glance.image_cache.cleaner:Cleaner.factory
 
 [app:glance-queue-image]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.queue_image:Queuer
+paste.app_factory = glance.image_cache.queue_image:Queuer.factory
diff --git a/etc/glance-registry-paste.ini b/etc/glance-registry-paste.ini
index 9ec01c69..39541d0c 100644
--- a/etc/glance-registry-paste.ini
+++ b/etc/glance-registry-paste.ini
@@ -11,16 +11,13 @@ pipeline = unauthenticated-context registryapp
 pipeline = authtoken context registryapp
 
 [app:registryapp]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.registry.api.v1:API
+paste.app_factory = glance.registry.api.v1:API.factory
 
 [filter:context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:ContextMiddleware
+paste.filter_factory = glance.common.context:ContextMiddleware.factory
 
 [filter:unauthenticated-context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:UnauthenticatedContextMiddleware
+paste.filter_factory = glance.common.context:UnauthenticatedContextMiddleware.factory
 
 [filter:authtoken]
 paste.filter_factory = keystone.middleware.auth_token:filter_factory
diff --git a/etc/glance-scrubber-paste.ini b/etc/glance-scrubber-paste.ini
index ac342f8f..8762aa14 100644
--- a/etc/glance-scrubber-paste.ini
+++ b/etc/glance-scrubber-paste.ini
@@ -1,3 +1,2 @@
 [app:glance-scrubber]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.store.scrubber:Scrubber
+paste.app_factory = glance.store.scrubber:Scrubber.factory
diff --git a/glance/api/middleware/cache.py b/glance/api/middleware/cache.py
index 00f52bb6..d52f51d9 100644
--- a/glance/api/middleware/cache.py
+++ b/glance/api/middleware/cache.py
@@ -43,7 +43,7 @@ get_images_re = re.compile(r'^(/v\d+)*/images/([^\/]+)$')
 
 class CacheFilter(wsgi.Middleware):
 
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         self.cache = image_cache.ImageCache()
         self.serializer = images.ImageSerializer()
         logger.info(_("Initialized image cache middleware"))
diff --git a/glance/api/middleware/cache_manage.py b/glance/api/middleware/cache_manage.py
index 6d0754bc..4210a4d7 100644
--- a/glance/api/middleware/cache_manage.py
+++ b/glance/api/middleware/cache_manage.py
@@ -30,7 +30,7 @@ logger = logging.getLogger(__name__)
 
 
 class CacheManageFilter(wsgi.Middleware):
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         mapper = routes.Mapper()
         resource = cached_images.create_resource()
 
diff --git a/glance/api/middleware/version_negotiation.py b/glance/api/middleware/version_negotiation.py
index 5cbaa071..d3d3e10b 100644
--- a/glance/api/middleware/version_negotiation.py
+++ b/glance/api/middleware/version_negotiation.py
@@ -31,7 +31,7 @@ logger = logging.getLogger('glance.api.middleware.version_negotiation')
 
 class VersionNegotiationFilter(wsgi.Middleware):
 
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         self.versions_app = versions.Controller()
         super(VersionNegotiationFilter, self).__init__(app)
 
diff --git a/glance/api/v1/router.py b/glance/api/v1/router.py
index 9e2697c8..0ee79295 100644
--- a/glance/api/v1/router.py
+++ b/glance/api/v1/router.py
@@ -30,9 +30,7 @@ class API(wsgi.Router):
 
     """WSGI router for Glance v1 API requests."""
 
-    def __init__(self, conf, **local_conf):
-        mapper = routes.Mapper()
-
+    def __init__(self, mapper):
         images_resource = images.create_resource()
 
         mapper.resource("image", "images", controller=images_resource,
diff --git a/glance/api/v2/router.py b/glance/api/v2/router.py
index df30f23f..872a5d0c 100644
--- a/glance/api/v2/router.py
+++ b/glance/api/v2/router.py
@@ -35,9 +35,7 @@ class API(wsgi.Router):
 
     """WSGI router for Glance v2 API requests."""
 
-    def __init__(self, conf, **local_conf):
-        mapper = routes.Mapper()
-
+    def __init__(self, mapper):
         schema_api = glance.schema.API()
         glance.schema.load_custom_schema_properties(schema_api)
 
diff --git a/glance/common/config.py b/glance/common/config.py
index 326f3be0..405d51ed 100644
--- a/glance/common/config.py
+++ b/glance/common/config.py
@@ -26,7 +26,8 @@ import logging.handlers
 import os
 import sys
 
-from glance.common import wsgi
+from paste import deploy
+
 from glance.openstack.common import cfg
 from glance import version
 
@@ -169,7 +170,7 @@ def load_paste_app(app_name=None, default_paste_file=None):
         logger.debug(_("Loading %(app_name)s from %(conf_file)s"),
                      {'conf_file': conf_file, 'app_name': app_name})
 
-        app = wsgi.paste_deploy_app(conf_file, app_name, CONF)
+        app = deploy.loadapp("config:%s" % conf_file, name=app_name)
 
         # Log the options used when starting if we're in debug mode...
         if CONF.debug:
diff --git a/glance/common/context.py b/glance/common/context.py
index 76a65d4d..d1469522 100644
--- a/glance/common/context.py
+++ b/glance/common/context.py
@@ -138,7 +138,7 @@ class RequestContext(object):
 
 class ContextMiddleware(wsgi.Middleware):
 
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         super(ContextMiddleware, self).__init__(app)
 
     def process_request(self, req):
@@ -193,7 +193,7 @@ class ContextMiddleware(wsgi.Middleware):
 
 class UnauthenticatedContextMiddleware(wsgi.Middleware):
 
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         super(UnauthenticatedContextMiddleware, self).__init__(app)
 
     def process_request(self, req):
diff --git a/glance/common/wsgi.py b/glance/common/wsgi.py
index fe5f48cc..215b4d6c 100644
--- a/glance/common/wsgi.py
+++ b/glance/common/wsgi.py
@@ -34,7 +34,6 @@ import eventlet
 import eventlet.greenio
 from eventlet.green import socket, ssl
 import eventlet.wsgi
-from paste import deploy
 import routes
 import routes.middleware
 import webob.dec
@@ -43,7 +42,6 @@ import webob.exc
 from glance.common import exception
 from glance.common import utils
 from glance.openstack.common import cfg
-from glance.openstack.common import importutils
 
 
 bind_opts = [
@@ -273,6 +271,12 @@ class Middleware(object):
     def __init__(self, application):
         self.application = application
 
+    @classmethod
+    def factory(cls, global_conf, **local_conf):
+        def filter(app):
+            return cls(app)
+        return filter
+
     def process_request(self, req):
         """
         Called on each request.
@@ -367,6 +371,10 @@ class Router(object):
         self._router = routes.middleware.RoutesMiddleware(self._dispatch,
                                                           self.map)
 
+    @classmethod
+    def factory(cls, global_conf, **local_conf):
+        return cls(routes.Mapper())
+
     @webob.dec.wsgify
     def __call__(self, req):
         """
@@ -528,139 +536,3 @@ class Resource(object):
             pass
 
         return args
-
-
-class BasePasteFactory(object):
-
-    """A base class for paste app and filter factories.
-
-    Sub-classes must override the KEY class attribute and provide
-    a __call__ method.
-    """
-
-    KEY = None
-
-    def __init__(self, conf):
-        self.conf = conf
-
-    def __call__(self, global_conf, **local_conf):
-        raise NotImplementedError
-
-    def _import_factory(self, local_conf):
-        """Import an app/filter class.
-
-        Lookup the KEY from the PasteDeploy local conf and import the
-        class named therein. This class can then be used as an app or
-        filter factory.
-
-        Note we support the <module>:<class> format.
-
-        Note also that if you do e.g.
-
-          key =
-              value
-
-        then ConfigParser returns a value with a leading newline, so
-        we strip() the value before using it.
-        """
-        class_name = local_conf[self.KEY].replace(':', '.').strip()
-        return importutils.import_class(class_name)
-
-
-class AppFactory(BasePasteFactory):
-
-    """A Generic paste.deploy app factory.
-
-    This requires glance.app_factory to be set to a callable which returns a
-    WSGI app when invoked. The format of the name is <module>:<callable> e.g.
-
-      [app:apiv1app]
-      paste.app_factory = glance.common.wsgi:app_factory
-      glance.app_factory = glance.api.v1:API
-
-    The WSGI app constructor must accept a ConfigOpts object and a local config
-    dict as its two arguments.
-    """
-
-    KEY = 'glance.app_factory'
-
-    def __call__(self, global_conf, **local_conf):
-        """The actual paste.app_factory protocol method."""
-        factory = self._import_factory(local_conf)
-        return factory(self.conf, **local_conf)
-
-
-class FilterFactory(AppFactory):
-
-    """A Generic paste.deploy filter factory.
-
-    This requires glance.filter_factory to be set to a callable which returns a
-    WSGI filter when invoked. The format is <module>:<callable> e.g.
-
-      [filter:cache]
-      paste.filter_factory = glance.common.wsgi:filter_factory
-      glance.filter_factory = glance.api.middleware.cache:CacheFilter
-
-    The WSGI filter constructor must accept a WSGI app, a ConfigOpts object and
-    a local config dict as its three arguments.
-    """
-
-    KEY = 'glance.filter_factory'
-
-    def __call__(self, global_conf, **local_conf):
-        """The actual paste.filter_factory protocol method."""
-        factory = self._import_factory(local_conf)
-
-        def filter(app):
-            return factory(app, self.conf, **local_conf)
-
-        return filter
-
-
-def setup_paste_factories(conf):
-    """Set up the generic paste app and filter factories.
-
-    Set things up so that:
-
-      paste.app_factory = glance.common.wsgi:app_factory
-
-    and
-
-      paste.filter_factory = glance.common.wsgi:filter_factory
-
-    work correctly while loading PasteDeploy configuration.
-
-    The app factories are constructed at runtime to allow us to pass a
-    ConfigOpts object to the WSGI classes.
-
-    :param conf: a ConfigOpts object
-    """
-    global app_factory, filter_factory
-    app_factory = AppFactory(conf)
-    filter_factory = FilterFactory(conf)
-
-
-def teardown_paste_factories():
-    """Reverse the effect of setup_paste_factories()."""
-    global app_factory, filter_factory
-    del app_factory
-    del filter_factory
-
-
-def paste_deploy_app(paste_config_file, app_name, conf):
-    """Load a WSGI app from a PasteDeploy configuration.
-
-    Use deploy.loadapp() to load the app from the PasteDeploy configuration,
-    ensuring that the supplied ConfigOpts object is passed to the app and
-    filter constructors.
-
-    :param paste_config_file: a PasteDeploy config file
-    :param app_name: the name of the app/pipeline to load from the file
-    :param conf: a ConfigOpts object to supply to the app and its filters
-    :returns: the WSGI app
-    """
-    setup_paste_factories(conf)
-    try:
-        return deploy.loadapp("config:%s" % paste_config_file, name=app_name)
-    finally:
-        teardown_paste_factories()
diff --git a/glance/image_cache/base.py b/glance/image_cache/base.py
new file mode 100644
index 00000000..b0385c1b
--- /dev/null
+++ b/glance/image_cache/base.py
@@ -0,0 +1,27 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Red Hat, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from glance.image_cache import ImageCache
+
+
+class CacheApp(object):
+
+    def __init__(self):
+        self.cache = ImageCache()
+
+    @classmethod
+    def factory(cls, global_conf, **local_conf):
+        return cls()
diff --git a/glance/image_cache/cleaner.py b/glance/image_cache/cleaner.py
index eb8dd15d..1c364e9b 100644
--- a/glance/image_cache/cleaner.py
+++ b/glance/image_cache/cleaner.py
@@ -15,20 +15,15 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+
 """
 Cleans up any invalid cache entries
 """
 
-import logging
-
-from glance.image_cache import ImageCache
-
-logger = logging.getLogger(__name__)
+from glance.image_cache import base
 
 
-class Cleaner(object):
-    def __init__(self, conf, **local_conf):
-        self.cache = ImageCache()
+class Cleaner(base.CacheApp):
 
     def run(self):
         self.cache.clean()
diff --git a/glance/image_cache/prefetcher.py b/glance/image_cache/prefetcher.py
index ec6f3a3d..dc1b9409 100644
--- a/glance/image_cache/prefetcher.py
+++ b/glance/image_cache/prefetcher.py
@@ -25,7 +25,7 @@ import eventlet
 
 from glance.common import context
 from glance.common import exception
-from glance.image_cache import ImageCache
+from glance.image_cache import base
 from glance import registry
 import glance.store
 import glance.store.filesystem
@@ -39,11 +39,11 @@ from glance.store import get_from_backend
 logger = logging.getLogger(__name__)
 
 
-class Prefetcher(object):
+class Prefetcher(base.CacheApp):
 
-    def __init__(self, conf, **local_conf):
+    def __init__(self):
         glance.store.create_stores()
-        self.cache = ImageCache()
+        super(Prefetcher, self).__init__()
         registry.configure_registry_client()
         registry.configure_registry_admin_creds()
 
diff --git a/glance/image_cache/pruner.py b/glance/image_cache/pruner.py
index 366e14dc..26209362 100644
--- a/glance/image_cache/pruner.py
+++ b/glance/image_cache/pruner.py
@@ -21,14 +21,12 @@ Prunes the Image Cache
 
 import logging
 
-from glance.image_cache import ImageCache
+from glance.image_cache import base
 
 logger = logging.getLogger(__name__)
 
 
-class Pruner(object):
-    def __init__(self, conf, **local_conf):
-        self.cache = ImageCache()
+class Pruner(base.CacheApp):
 
     def run(self):
         self.cache.prune()
diff --git a/glance/image_cache/queue_image.py b/glance/image_cache/queue_image.py
index 2cedb1e0..11b3bb2e 100644
--- a/glance/image_cache/queue_image.py
+++ b/glance/image_cache/queue_image.py
@@ -25,17 +25,17 @@ import eventlet
 
 from glance.common import context
 from glance.common import exception
-from glance.image_cache import ImageCache
+from glance.image_cache import base
 from glance import registry
 
 
 logger = logging.getLogger(__name__)
 
 
-class Queuer(object):
+class Queuer(base.CacheApp):
 
-    def __init__(self, conf, **local_conf):
-        self.cache = ImageCache()
+    def __init__(self):
+        super(Queuer, self).__init__()
         registry.configure_registry_client()
         registry.configure_registry_admin_creds()
 
diff --git a/glance/registry/api/v1/__init__.py b/glance/registry/api/v1/__init__.py
index af687c8f..043dec6b 100644
--- a/glance/registry/api/v1/__init__.py
+++ b/glance/registry/api/v1/__init__.py
@@ -25,7 +25,7 @@ from glance.registry.api.v1 import members
 class API(wsgi.Router):
     """WSGI entry point for all Registry requests."""
 
-    def __init__(self, conf, **local_conf):
+    def __init__(self, mapper):
         mapper = routes.Mapper()
 
         images_resource = images.create_resource()
diff --git a/glance/store/scrubber.py b/glance/store/scrubber.py
index fdb6eea6..6f52faad 100644
--- a/glance/store/scrubber.py
+++ b/glance/store/scrubber.py
@@ -70,7 +70,7 @@ class Daemon(object):
 class Scrubber(object):
     CLEANUP_FILE = ".cleanup"
 
-    def __init__(self, conf, **local_conf):
+    def __init__(self):
         self.datadir = CONF.scrubber_datadir
         self.cleanup = CONF.cleanup_scrubber
         self.cleanup_time = CONF.cleanup_scrubber_time
@@ -88,6 +88,10 @@ class Scrubber(object):
 
         store.create_stores()
 
+    @classmethod
+    def factory(cls, global_conf, **local_conf):
+        return cls()
+
     def run(self, pool, event=None):
         now = time.time()
 
diff --git a/glance/tests/functional/__init__.py b/glance/tests/functional/__init__.py
index 545803c3..e926ac16 100644
--- a/glance/tests/functional/__init__.py
+++ b/glance/tests/functional/__init__.py
@@ -289,37 +289,31 @@ use = egg:Paste#urlmap
 paste.app_factory = glance.api.versions:create_resource
 
 [app:apiv1app]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.api.v1.router:API
+paste.app_factory = glance.api.v1.router:API.factory
 
 [app:apiv2app]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.api.v2.router:API
+paste.app_factory = glance.api.v2.router:API.factory
 
 [filter:versionnegotiation]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory =
- glance.api.middleware.version_negotiation:VersionNegotiationFilter
+paste.filter_factory =
+ glance.api.middleware.version_negotiation:VersionNegotiationFilter.factory
 
 [filter:cache]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.api.middleware.cache:CacheFilter
+paste.filter_factory = glance.api.middleware.cache:CacheFilter.factory
 
 [filter:cache_manage]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.api.middleware.cache_manage:CacheManageFilter
+paste.filter_factory =
+ glance.api.middleware.cache_manage:CacheManageFilter.factory
 
 [filter:context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:ContextMiddleware
+paste.filter_factory = glance.common.context:ContextMiddleware.factory
 
 [filter:unauthenticated-context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:UnauthenticatedContextMiddleware
+paste.filter_factory =
+ glance.common.context:UnauthenticatedContextMiddleware.factory
 
 [filter:fakeauth]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.tests.utils:FakeAuthMiddleware
+paste.filter_factory = glance.tests.utils:FakeAuthMiddleware.factory
 """
 
 
@@ -365,20 +359,17 @@ pipeline = unauthenticated-context registryapp
 pipeline = fakeauth context registryapp
 
 [app:registryapp]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.registry.api.v1:API
+paste.app_factory = glance.registry.api.v1:API.factory
 
 [filter:context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:ContextMiddleware
+paste.filter_factory = glance.common.context:ContextMiddleware.factory
 
 [filter:unauthenticated-context]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.common.context:UnauthenticatedContextMiddleware
+paste.filter_factory =
+ glance.common.context:UnauthenticatedContextMiddleware.factory
 
 [filter:fakeauth]
-paste.filter_factory = glance.common.wsgi:filter_factory
-glance.filter_factory = glance.tests.utils:FakeAuthMiddleware
+paste.filter_factory = glance.tests.utils:FakeAuthMiddleware.factory
 """
 
 
@@ -409,8 +400,7 @@ registry_host = 0.0.0.0
 registry_port = %(registry_port)s
 """
         self.paste_conf_base = """[app:glance-scrubber]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.store.scrubber:Scrubber
+paste.app_factory = glance.store.scrubber:Scrubber.factory
 """
 
 
diff --git a/glance/tests/functional/v1/test_bin_glance_cache_manage.py b/glance/tests/functional/v1/test_bin_glance_cache_manage.py
index 2bf51545..d795628c 100644
--- a/glance/tests/functional/v1/test_bin_glance_cache_manage.py
+++ b/glance/tests/functional/v1/test_bin_glance_cache_manage.py
@@ -209,20 +209,16 @@ log_file = %(log_file)s
         with open(cache_config_filepath.replace(".conf", "-paste.ini"),
                   'w') as paste_file:
             paste_file.write("""[app:glance-pruner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.pruner:Pruner
+paste.app_factory = glance.image_cache.pruner:Pruner.factory
 
 [app:glance-prefetcher]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.prefetcher:Prefetcher
+paste.app_factory = glance.image_cache.prefetcher:Prefetcher.factory
 
 [app:glance-cleaner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.cleaner:Cleaner
+paste.app_factory = glance.image_cache.cleaner:Cleaner.factory
 
 [app:glance-queue-image]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.queue_image:Queuer
+paste.app_factory = glance.image_cache.queue_image:Queuer.factory
 """)
 
         cmd = ("bin/glance-cache-prefetcher --config-file %s" %
diff --git a/glance/tests/functional/v1/test_cache_middleware.py b/glance/tests/functional/v1/test_cache_middleware.py
index 7532b670..7cf8b81f 100644
--- a/glance/tests/functional/v1/test_cache_middleware.py
+++ b/glance/tests/functional/v1/test_cache_middleware.py
@@ -460,20 +460,16 @@ log_file = %(log_file)s
         with open(cache_config_filepath.replace(".conf", "-paste.ini"),
                   'w') as paste_file:
             paste_file.write("""[app:glance-pruner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.pruner:Pruner
+paste.app_factory = glance.image_cache.pruner:Pruner.factory
 
 [app:glance-prefetcher]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.prefetcher:Prefetcher
+paste.app_factory = glance.image_cache.prefetcher:Prefetcher.factory
 
 [app:glance-cleaner]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.cleaner:Cleaner
+paste.app_factory = glance.image_cache.cleaner:Cleaner.factory
 
 [app:glance-queue-image]
-paste.app_factory = glance.common.wsgi:app_factory
-glance.app_factory = glance.image_cache.queue_image:Queuer
+paste.app_factory = glance.image_cache.queue_image:Queuer.factory
 """)
 
         self.verify_no_images()
diff --git a/glance/tests/stubs.py b/glance/tests/stubs.py
index d8c82179..928910c0 100644
--- a/glance/tests/stubs.py
+++ b/glance/tests/stubs.py
@@ -25,6 +25,7 @@ try:
 except ImportError:
     SENDFILE_SUPPORTED = False
 
+import routes
 import webob
 
 from glance.api.v1 import router
@@ -65,8 +66,8 @@ def stub_out_registry_and_store_server(stubs, base_dir):
                 self.req.body = body
 
         def getresponse(self):
-            api = context.UnauthenticatedContextMiddleware(rserver.API(None),
-                                                           None)
+            mapper = routes.Mapper()
+            api = context.UnauthenticatedContextMiddleware(rserver.API(mapper))
             res = self.req.get_response(api)
 
             # httplib.Response has a read() method...fake it out
@@ -143,8 +144,8 @@ def stub_out_registry_and_store_server(stubs, base_dir):
                 self.req.body = body
 
         def getresponse(self):
-            api = context.UnauthenticatedContextMiddleware(router.API(None),
-                                                           None)
+            mapper = routes.Mapper()
+            api = context.UnauthenticatedContextMiddleware(router.API(mapper))
             res = self.req.get_response(api)
 
             # httplib.Response has a read() method...fake it out
@@ -218,8 +219,8 @@ def stub_out_registry_server(stubs, **kwargs):
                 self.req.body = body
 
         def getresponse(self):
-            api = context.UnauthenticatedContextMiddleware(rserver.API(None),
-                                                           None)
+            mapper = routes.Mapper()
+            api = context.UnauthenticatedContextMiddleware(rserver.API(mapper))
             res = self.req.get_response(api)
 
             # httplib.Response has a read() method...fake it out
diff --git a/glance/tests/unit/test_config.py b/glance/tests/unit/test_config.py
index bdfd48c8..911731b4 100644
--- a/glance/tests/unit/test_config.py
+++ b/glance/tests/unit/test_config.py
@@ -112,8 +112,8 @@ class TestPasteApp(test_utils.BaseTestCase):
         config.parse_cache_args([])
 
         self.stubs.Set(config, 'setup_logging', lambda *a: None)
-        self.stubs.Set(pruner, 'Pruner', lambda conf, **lc: 'pruner')
+        self.stubs.Set(pruner.Pruner, '__init__', lambda p: None)
 
         app = config.load_paste_app('glance-pruner')
 
-        self.assertEquals('pruner', app)
+        self.assertTrue(isinstance(app, pruner.Pruner))
diff --git a/glance/tests/unit/test_context_middleware.py b/glance/tests/unit/test_context_middleware.py
index b81b9f10..4a053e7d 100644
--- a/glance/tests/unit/test_context_middleware.py
+++ b/glance/tests/unit/test_context_middleware.py
@@ -18,7 +18,7 @@ class TestContextMiddleware(base.IsolatedUnitTest):
         return req
 
     def _build_middleware(self):
-        return context.ContextMiddleware(None, None)
+        return context.ContextMiddleware(None)
 
     def test_header_parsing(self):
         req = self._build_request()
@@ -66,7 +66,7 @@ class TestContextMiddleware(base.IsolatedUnitTest):
 
 class TestUnauthenticatedContextMiddleware(base.IsolatedUnitTest):
     def test_request(self):
-        middleware = context.UnauthenticatedContextMiddleware(None, None)
+        middleware = context.UnauthenticatedContextMiddleware(None)
         req = webob.Request.blank('/')
         middleware.process_request(req)
         self.assertEqual(req.context.auth_tok, None)
diff --git a/glance/tests/unit/v1/test_api.py b/glance/tests/unit/v1/test_api.py
index 19c373a4..d73d84f1 100644
--- a/glance/tests/unit/v1/test_api.py
+++ b/glance/tests/unit/v1/test_api.py
@@ -20,6 +20,7 @@ import hashlib
 import httplib
 import json
 
+import routes
 import stubout
 import webob
 
@@ -72,7 +73,7 @@ class TestRegistryDb(test_utils.BaseTestCase):
 
         self.stubs.Set(db_api.logger, 'error', fake_log_error)
         try:
-            api_obj = rserver.API(None)
+            api_obj = rserver.API(routes.Mapper())
         except exc.ArgumentError:
             exc_raised = True
         except ImportError:
@@ -92,8 +93,9 @@ class TestRegistryAPI(base.IsolatedUnitTest):
     def setUp(self):
         """Establish a clean test environment"""
         super(TestRegistryAPI, self).setUp()
-        self.api = context.UnauthenticatedContextMiddleware(rserver.API(None),
-                                                            None)
+        mapper = routes.Mapper()
+        self.api = (
+            context.UnauthenticatedContextMiddleware(rserver.API(mapper)))
         self.FIXTURES = [
             {'id': UUID1,
              'name': 'fake image #1',
@@ -1961,8 +1963,8 @@ class TestGlanceAPI(base.IsolatedUnitTest):
     def setUp(self):
         """Establish a clean test environment"""
         super(TestGlanceAPI, self).setUp()
-        self.api = context.UnauthenticatedContextMiddleware(router.API(None),
-                                                            None)
+        mapper = routes.Mapper()
+        self.api = context.UnauthenticatedContextMiddleware(router.API(mapper))
         self.FIXTURES = [
             {'id': UUID1,
              'name': 'fake image #1',
diff --git a/glance/tests/utils.py b/glance/tests/utils.py
index af80784d..ea693945 100644
--- a/glance/tests/utils.py
+++ b/glance/tests/utils.py
@@ -351,7 +351,7 @@ def minimal_add_command(port, name, suffix='', public=True):
 
 class FakeAuthMiddleware(wsgi.Middleware):
 
-    def __init__(self, app, conf, **local_conf):
+    def __init__(self, app):
         super(FakeAuthMiddleware, self).__init__(app)
 
     def process_request(self, req):