kubernetes_utils: avoid 404 error code in delete_service()

JIRA: YARDSTICK-1321

Change-Id: Id0f3a5d93f11674fd3908a7f5cf7214afcfa3600
Signed-off-by: Mytnyk, Volodymyr <volodymyrx.mytnyk@intel.com>

4 files changed, 42 insertions, 7 deletions

diff --git a/yardstick/common/kubernetes_utils.py b/yardstick/common/kubernetes_utils.py
index 35e590f2b..4bc1ac27f 100644
--- a/yardstick/common/kubernetes_utils.py
+++ b/yardstick/common/kubernetes_utils.py
@@ -75,15 +75,18 @@ def create_service(template,
         raise
 
 
-def delete_service(name,
-                   namespace='default',
-                   **kwargs):       # pragma: no cover
+def delete_service(name, namespace='default', skip_codes=None, **kwargs):
+    skip_codes = [] if not skip_codes else skip_codes
     core_v1_api = get_core_api()
     try:
         body = client.V1DeleteOptions()
         core_v1_api.delete_namespaced_service(name, namespace, body, **kwargs)
-    except ApiException:
-        LOG.exception('Delete Service failed')
+    except ApiException as e:
+        if e.status in skip_codes:
+            LOG.info(e.reason)
+        else:
+            raise exceptions.KubernetesApiException(
+                action='delete', resource='Service')
 
 
 def get_service_list(namespace='default', **kwargs):
diff --git a/yardstick/orchestrator/kubernetes.py b/yardstick/orchestrator/kubernetes.py
index 98832908c..bf7aa9c1b 100644
--- a/yardstick/orchestrator/kubernetes.py
+++ b/yardstick/orchestrator/kubernetes.py
@@ -274,7 +274,7 @@ class ServiceNodePortObject(object):
         k8s_utils.create_service(self.template)
 
     def delete(self):
-        k8s_utils.delete_service(self._name)
+        k8s_utils.delete_service(self._name, skip_codes=[404])
 
 
 class CustomResourceDefinitionObject(object):
diff --git a/yardstick/tests/unit/common/test_kubernetes_utils.py b/yardstick/tests/unit/common/test_kubernetes_utils.py
index bdc2c12d5..637424f48 100644
--- a/yardstick/tests/unit/common/test_kubernetes_utils.py
+++ b/yardstick/tests/unit/common/test_kubernetes_utils.py
@@ -250,3 +250,34 @@ class DeletePodTestCase(base.BaseUnitTestCase):
 
         mock_get_api.return_value = mock_api
         kubernetes_utils.delete_pod(mock.ANY, skip_codes=[404])
+
+
+class DeleteServiceTestCase(base.BaseUnitTestCase):
+    @mock.patch.object(client, "V1DeleteOptions")
+    @mock.patch.object(kubernetes_utils, 'get_core_api')
+    def test_execute_correct(self, mock_get_api, mock_options):
+        mock_api = mock.Mock()
+        mock_get_api.return_value = mock_api
+        mock_options.return_value = None
+        kubernetes_utils.delete_service("name", "default", None)
+        mock_api.delete_namespaced_service.assert_called_once_with(
+            "name", 'default', None)
+
+    @mock.patch.object(kubernetes_utils, 'get_core_api')
+    def test_execute_exception(self, mock_get_api):
+        mock_api = mock.Mock()
+        mock_api.delete_namespaced_service.side_effect = rest.ApiException(status=200)
+
+        mock_get_api.return_value = mock_api
+        with self.assertRaises(exceptions.KubernetesApiException):
+            kubernetes_utils.delete_service(mock.ANY, skip_codes=[404])
+
+    @mock.patch.object(kubernetes_utils, 'get_core_api')
+    @mock.patch.object(kubernetes_utils, 'LOG')
+    def test_execute_skip_exception(self, mock_log, mock_get_api):
+        mock_api = mock.Mock()
+        mock_api.delete_namespaced_service.side_effect = rest.ApiException(status=404)
+
+        mock_get_api.return_value = mock_api
+        kubernetes_utils.delete_service(mock.ANY, skip_codes=[404])
+        mock_log.info.assert_called_once()
diff --git a/yardstick/tests/unit/orchestrator/test_kubernetes.py b/yardstick/tests/unit/orchestrator/test_kubernetes.py
index 8d351e419..0c6fd0adf 100644
--- a/yardstick/tests/unit/orchestrator/test_kubernetes.py
+++ b/yardstick/tests/unit/orchestrator/test_kubernetes.py
@@ -545,7 +545,8 @@ class ServiceNodePortObjectTestCase(base.BaseUnitTestCase):
     def test_delete(self, mock_delete_service):
         nodeport_object = kubernetes.ServiceNodePortObject('fake_name')
         nodeport_object.delete()
-        mock_delete_service.assert_called_once_with('fake_name-service')
+        mock_delete_service.assert_called_once_with('fake_name-service',
+                                                    skip_codes=[404])
 
 
 class KubernetesTemplate(base.BaseUnitTestCase):