swift: configure RPC service correctly

This fixes bug #1124121

Change-Id: I51d476a7cb4aa3f261249ccd62965c44ab8584ea
Signed-off-by: Julien Danjou <julien@danjou.info>

ceilometer/objectstore/swift_middleware.py

@@ -27,6 +27,7 @@ from ceilometer.openstack.common import cfg
 from ceilometer.openstack.common import context
 from ceilometer.openstack.common import timeutils
 from ceilometer import pipeline
+from ceilometer import service
 
 from swift.common.utils import split_path
 
@@ -51,7 +52,7 @@ class CeilometerMiddleware(object):
 
     def __init__(self, app, conf):
         self.app = app
-        cfg.CONF([], project='ceilometer')
+        service.prepare_service()
         publisher_manager = dispatch.NameDispatchExtensionManager(
             namespace=pipeline.PUBLISHER_NAMESPACE,
             check_func=lambda x: True,

tests/objectstore/test_swift_middleware.py

@@ -23,6 +23,7 @@ from webob import Request
 from ceilometer.tests import base
 from ceilometer.objectstore import swift_middleware
 from ceilometer import pipeline
+from ceilometer.openstack.common import cfg
 
 
 class FakeApp(object):
@@ -60,6 +61,10 @@ class TestSwiftMiddleware(base.TestCase):
     def start_response(*args):
             pass
 
+    def test_rpc_setup(self):
+        app = swift_middleware.CeilometerMiddleware(FakeApp(), {})
+        self.assertEqual(cfg.CONF.control_exchange, 'ceilometer')
+
     def test_get(self):
         app = swift_middleware.CeilometerMiddleware(FakeApp(), {})
         req = Request.blank('/1.0/account/container/obj',