Network: process metering reports from Neutron

blueprint https://blueprints.launchpad.net/ceilometer/+spec/ceilometer-quantum-bw-metering

Change-Id: Idbcc5843e1840ff2659a58d991f4256f56c93a4d

ceilometer/network/notifications.py

@@ -140,3 +140,22 @@ class FloatingIP(NetworkNotificationBase):
     resource_name = 'floatingip'
     counter_name = 'ip.floating'
     unit = 'ip'
+
+
+class Bandwidth(NetworkNotificationBase):
+    """Listen for Neutron notifications in order to mediate with the
+    metering framework.
+
+    """
+    event_types = ['l3.meter']
+
+    def process_notification(self, message):
+        yield sample.Sample.from_notification(
+            name='bandwidth',
+            type=sample.TYPE_DELTA,
+            unit='B',
+            volume=message['payload']['bytes'],
+            user_id=None,
+            project_id=message['payload']['tenant_id'],
+            resource_id=message['payload']['label_id'],
+            message=message)

setup.cfg

@@ -49,6 +49,7 @@ ceilometer.collector =
     port = ceilometer.network.notifications:Port
     router = ceilometer.network.notifications:Router
     floatingip = ceilometer.network.notifications:FloatingIP
+    bandwidth = ceilometer.network.notifications:Bandwidth
     http.request = ceilometer.middleware:HTTPRequest
     http.response = ceilometer.middleware:HTTPResponse
 

tests/network/test_notifications.py

@@ -202,6 +202,29 @@ NOTIFICATION_FLOATINGIP_EXISTS = {
     u'publisher_id': u'network.ubuntu-VirtualBox',
     u'message_id': u'9e839576-cc47-4c60-a7d8-5743681213b1'}
 
+NOTIFICATION_L3_METER = {
+    u'_context_roles': [u'admin'],
+    u'_context_read_deleted': u'no',
+    u'event_type': u'l3.meter',
+    u'timestamp': u'2013-08-22 13:14:06.880304',
+    u'_context_tenant_id': None,
+    u'payload': {u'first_update': 1377176476,
+                 u'bytes': 0,
+                 u'label_id': u'383244a7-e99b-433a-b4a1-d37cf5b17d15',
+                 u'last_update': 1377177246,
+                 u'host': u'precise64',
+                 u'tenant_id': u'admin',
+                 u'time': 30,
+                 u'pkts': 0},
+    u'priority': u'INFO',
+    u'_context_is_admin': True,
+    u'_context_timestamp': u'2013-08-22 13:01:06.614635',
+    u'_context_user_id': None,
+    u'publisher_id': u'metering.precise64',
+    u'message_id': u'd7aee6e8-c7eb-4d47-9338-f60920d708e4',
+    u'_unique_id': u'd5a3bdacdcc24644b84e67a4c10e886a',
+    u'_context_project_id': None}
+
 
 class TestNotifications(base.TestCase):
     def test_network_create(self):
@@ -244,6 +267,12 @@ class TestNotifications(base.TestCase):
         self.assertEqual(len(samples), 1)
         self.assertEqual(samples[0].name, "ip.floating")
 
+    def test_metering_report(self):
+        v = notifications.Bandwidth()
+        samples = list(v.process_notification(NOTIFICATION_L3_METER))
+        self.assertEqual(len(samples), 1)
+        self.assertEqual(samples[0].name, "bandwidth")
+
 
 class TestEventTypes(base.TestCase):
 
@@ -267,3 +296,6 @@ class TestEventTypes(base.TestCase):
 
     def test_floatingip(self):
         self.assertTrue(notifications.FloatingIP().event_types)
+
+    def test_bandwidth(self):
+        self.assertTrue(notifications.Bandwidth().event_types)