Add Nova service test capability

Basing Nova work directly on the OpenStackSDK so that there are fewer
(direct) dependencies in this code. Glance is only modified so that the
import naming is more explicit.

We don't create a VM in order to reduce dependencies on external
services such as neutron or cinder.

Change-Id: I5385754d29d5008ab5ea16bf84f4192051c5c70a

bowling_ball/rolling_tests.py

@@ -24,10 +24,12 @@ from keystoneauth1 import session
 from keystoneclient.v3 import client as key_client
 import logging
 import os
+from openstack import connection
+from openstack import profile
 import signal
 import sys
 import time
-from glanceclient import Client
+import glanceclient
 import tempfile
 
 logger = logging.getLogger(__name__)
@@ -103,6 +105,23 @@ class ServiceTest(object):
     def get_keystone_client(self, session):
         return key_client.Client(session=session)
 
+    def get_connection(self):
+        """Get an OpenStackSDK connection"""
+        auth_url = os.environ['OS_AUTH_URL']
+        password = os.environ['OS_PASSWORD']
+
+        prof = profile.Profile()
+        prof.set_interface(profile.Profile.ALL, 'admin')
+
+        conn = connection.Connection(auth_url=auth_url,
+                                     username='admin',
+                                     password=password,
+                                     project_name='admin',
+                                     user_domain_id='default',
+                                     project_domain_id='default',
+                                     profile=prof)
+        return conn
+
 
 class KeystoneTest(ServiceTest):
     service_name = 'keystone'
@@ -140,7 +159,8 @@ class GlanceTest(ServiceTest):
         keystone = self.get_keystone_client(sess)
         endpoint = self.get_glance_endpoint(keystone)
 
-        glance = Client(version='2', endpoint=endpoint, session=sess)
+        glance = glanceclient.Client(version='2',
+                                     endpoint=endpoint, session=sess)
         image = glance.images.create(name="Rolling test",
                                      disk_format="raw",
                                      container_format="bare")
@@ -164,6 +184,25 @@ class GlanceTest(ServiceTest):
         return glance_endpoint.url
 
 
+class NovaTest(ServiceTest):
+    service_name = 'nova'
+    description = 'Query for a list of flavors'
+
+    def run(self):
+
+        conn = self.get_connection()
+
+        # Have to iterate over the generator returned to actually
+        # see the flavors
+        flavors = [flavor for flavor in conn.compute.flavors()]
+
+        msg = 'API reached, no flavors found'
+        if flavors:
+            msg = 'Flavor list received'
+
+        return msg
+
+
 class TestRunner(object):
     """Run a test in a loop, with the option to gracefully exit"""
     stop_now = False
@@ -254,6 +293,7 @@ class TestRunner(object):
 available_tests = {
     'keystone': KeystoneTest,
     'glance': GlanceTest,
+    'nova': NovaTest,
 }