From: aktas Date: Sun, 21 Feb 2021 16:36:20 +0000 (+0300) Subject: Fixes for scaling proxy and native charm X-Git-Tag: branch-sol006v331-start~13 X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=refs%2Fchanges%2F64%2F10364%2F5;p=osm%2FN2VC.git Fixes for scaling proxy and native charm With changes in here, it can remove application while scaling in and it can add application existed k8s proxy charm model. Change-Id: If4fd378fdafd925fa1750ce4769506b44adc233c Signed-off-by: aktas --- diff --git a/n2vc/n2vc_juju_conn.py b/n2vc/n2vc_juju_conn.py index 6e78c47..7714d4e 100644 --- a/n2vc/n2vc_juju_conn.py +++ b/n2vc/n2vc_juju_conn.py @@ -543,13 +543,14 @@ class N2VCJujuConnector(N2VCConnector): _, ns_id, _, _, _ = self._get_namespace_components(namespace=namespace) model_name = '{}-k8s'.format(ns_id) - cloud = cloud_name or self.k8s_cloud - credential = credential_name or cloud_name if cloud_name else self.k8s_cloud - await self.libjuju.add_model( - model_name, - cloud_name=cloud, - credential_name=credential - ) + if not await self.libjuju.model_exists(model_name): + cloud = cloud_name or self.k8s_cloud + credential = credential_name or cloud_name if cloud_name else self.k8s_cloud + await self.libjuju.add_model( + model_name, + cloud_name=cloud, + credential_name=credential + ) application_name = self._get_application_name(namespace) try: @@ -762,7 +763,8 @@ class N2VCJujuConnector(N2VCConnector): self.log.info("Namespace {} deleted".format(namespace)) async def delete_execution_environment( - self, ee_id: str, db_dict: dict = None, total_timeout: float = None + self, ee_id: str, db_dict: dict = None, total_timeout: float = None, + scaling_in: bool = False ): self.log.info("Deleting execution environment ee_id={}".format(ee_id)) @@ -775,12 +777,20 @@ class N2VCJujuConnector(N2VCConnector): model_name, application_name, _machine_id = self._get_ee_id_components( ee_id=ee_id ) - - # destroy the application try: - await self.libjuju.destroy_model( - model_name=model_name, total_timeout=total_timeout - ) + if not scaling_in: + # destroy the model + # TODO: should this be removed? + await self.libjuju.destroy_model( + model_name=model_name, total_timeout=total_timeout + ) + else: + # get juju model and observer + controller = await self.libjuju.get_controller() + model = await self.libjuju.get_model(controller, model_name) + # destroy the application + await self.libjuju.destroy_application( + model=model, application_name=application_name) except Exception as e: raise N2VCException( message=( diff --git a/n2vc/tests/unit/test_n2vc_juju_conn.py b/n2vc/tests/unit/test_n2vc_juju_conn.py index bad5fc3..64b93cc 100644 --- a/n2vc/tests/unit/test_n2vc_juju_conn.py +++ b/n2vc/tests/unit/test_n2vc_juju_conn.py @@ -81,6 +81,7 @@ class GetMetricssTest(N2VCJujuConnTestCase): mock_get_metrics.assert_called_once() +@asynctest.mock.patch("n2vc.libjuju.Libjuju.model_exists") @asynctest.mock.patch("osm_common.fslocal.FsLocal.file_exists") @asynctest.mock.patch( "osm_common.fslocal.FsLocal.path", new_callable=asynctest.PropertyMock, create=True @@ -92,8 +93,9 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): super(K8sProxyCharmsTest, self).setUp() def test_success( - self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, + self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists ): + mock_model_exists.return_value = None mock_file_exists.return_value = True mock_path.return_value = "/path" ee_id = self.loop.run_until_complete( @@ -131,6 +133,7 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): mock_deploy_charm, mock_path, mock_file_exists, + mock_model_exists, ): mock_k8s_cloud.return_value = None with self.assertRaises(JujuK8sProxycharmNotSupported): @@ -142,7 +145,7 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): self.assertIsNone(ee_id) def test_no_artifact_path( - self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, + self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists, ): with self.assertRaises(N2VCBadArgumentsException): ee_id = self.loop.run_until_complete( @@ -153,7 +156,7 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): self.assertIsNone(ee_id) def test_no_db( - self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, + self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists, ): with self.assertRaises(N2VCBadArgumentsException): ee_id = self.loop.run_until_complete( @@ -164,7 +167,7 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): self.assertIsNone(ee_id) def test_file_not_exists( - self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, + self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists, ): mock_file_exists.return_value = False with self.assertRaises(N2VCBadArgumentsException): @@ -176,8 +179,9 @@ class K8sProxyCharmsTest(N2VCJujuConnTestCase): self.assertIsNone(ee_id) def test_exception( - self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, + self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists, ): + mock_model_exists.return_value = None mock_file_exists.return_value = True mock_path.return_value = "/path" mock_deploy_charm.side_effect = Exception()