X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2FN2VC.git;a=blobdiff_plain;f=n2vc%2Ftests%2Funit%2Ftest_k8s_helm3_conn.py;fp=n2vc%2Ftests%2Funit%2Ftest_k8s_helm3_conn.py;h=e5af88161d91f705c2c8269ed6413e411a01647f;hp=0000000000000000000000000000000000000000;hb=1c83f2e4d061ad37ba898e114cb42e70fdee5145;hpb=e308c71201537413caf28f8814051470f0418504

diff --git a/n2vc/tests/unit/test_k8s_helm3_conn.py b/n2vc/tests/unit/test_k8s_helm3_conn.py
new file mode 100644
index 0000000..e5af881
--- /dev/null
+++ b/n2vc/tests/unit/test_k8s_helm3_conn.py
@@ -0,0 +1,506 @@
+##
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: alfonso.tiernosepulveda@telefonica.com
+##
+
+import asynctest
+import logging
+
+from asynctest.mock import Mock
+from osm_common.dbmemory import DbMemory
+from osm_common.fslocal import FsLocal
+from n2vc.k8s_helm3_conn import K8sHelm3Connector
+
+__author__ = "Isabel Lloret <illoret@indra.es>"
+
+
+class TestK8sHelm3Conn(asynctest.TestCase):
+    logging.basicConfig(level=logging.DEBUG)
+    logger = logging.getLogger(__name__)
+    logger.setLevel(logging.DEBUG)
+
+    async def setUp(self):
+        self.db = Mock(DbMemory())
+        self.fs = asynctest.Mock(FsLocal())
+        self.fs.path = "./tmp/"
+        self.namespace = "testk8s"
+        self.cluster_id = "helm3_cluster_id"
+        self.cluster_uuid = "{}:{}".format(self.namespace, self.cluster_id)
+        # pass fake kubectl and helm commands to make sure it does not call actual commands
+        K8sHelm3Connector._check_file_exists = asynctest.Mock(return_value=True)
+        cluster_dir = self.fs.path + self.cluster_id
+        self.env = {
+            "HELM_CACHE_HOME": "{}/.cache/helm".format(cluster_dir),
+            "HELM_CONFIG_HOME": "{}/.config/helm".format(cluster_dir),
+            "HELM_DATA_HOME": "{}/.local/share/helm".format(cluster_dir),
+            "KUBECONFIG": "{}/.kube/config".format(cluster_dir)
+        }
+        self.helm_conn = K8sHelm3Connector(self.fs, self.db,
+                                           log=self.logger)
+        self.logger.debug("Set up executed")
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_init_env(self):
+        k8s_creds = "false_credentials_string"
+        self.helm_conn._get_namespaces = asynctest.CoroutineMock(return_value=[])
+        self.helm_conn._create_namespace = asynctest.CoroutineMock()
+        self.helm_conn.repo_list = asynctest.CoroutineMock(return_value=[])
+        self.helm_conn.repo_add = asynctest.CoroutineMock()
+
+        k8scluster_uuid, installed = await self.helm_conn.init_env(
+            k8s_creds, namespace=self.namespace, reuse_cluster_uuid=self.cluster_id)
+
+        self.assertEqual(k8scluster_uuid, "{}:{}".format(self.namespace, self.cluster_id),
+                         "Check cluster_uuid format: <namespace>.<cluster_id>")
+        self.helm_conn._get_namespaces.assert_called_once_with(self.cluster_id)
+        self.helm_conn._create_namespace.assert_called_once_with(self.cluster_id, self.namespace)
+        self.helm_conn.repo_list.assert_called_once_with(k8scluster_uuid)
+        self.helm_conn.repo_add.assert_called_once_with(
+            k8scluster_uuid, "stable", "https://kubernetes-charts.storage.googleapis.com/")
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.logger.debug(f"cluster_uuid: {k8scluster_uuid}")
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_repo_add(self):
+        repo_name = "bitnami"
+        repo_url = "https://charts.bitnami.com/bitnami"
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        await self.helm_conn.repo_add(self.cluster_uuid, repo_name, repo_url)
+
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.assertEqual(self.helm_conn._local_async_exec.call_count, 2,
+                         "local_async_exec expected 2 calls, called {}".format(
+                             self.helm_conn._local_async_exec.call_count))
+
+        repo_update_command = "/usr/bin/helm3 repo update"
+        repo_add_command = "/usr/bin/helm3 repo add {} {}".format(repo_name, repo_url)
+        calls = self.helm_conn._local_async_exec.call_args_list
+        call0_kargs = calls[0][1]
+        self.assertEqual(call0_kargs.get("command"), repo_update_command,
+                         "Invalid repo update command: {}".format(call0_kargs.get("command")))
+        self.assertEqual(call0_kargs.get("env"), self.env,
+                         "Invalid env for update command: {}".format(call0_kargs.get("env")))
+        call1_kargs = calls[1][1]
+        self.assertEqual(call1_kargs.get("command"), repo_add_command,
+                         "Invalid repo add command: {}".format(call1_kargs.get("command")))
+        self.assertEqual(call1_kargs.get("env"), self.env,
+                         "Invalid env for add command: {}".format(call1_kargs.get("env")))
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_repo_list(self):
+
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        await self.helm_conn.repo_list(self.cluster_uuid)
+
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        command = "/usr/bin/helm3 repo list --output yaml"
+        self.helm_conn._local_async_exec.assert_called_with(command=command, env=self.env,
+                                                            raise_exception_on_error=False)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_repo_remove(self):
+
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        repo_name = "bitnami"
+        await self.helm_conn.repo_remove(self.cluster_uuid, repo_name)
+
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        command = "/usr/bin/helm3 repo remove {}".format(repo_name)
+        self.helm_conn._local_async_exec.assert_called_with(command=command, env=self.env,
+                                                            raise_exception_on_error=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_install(self):
+        kdu_model = "stable/openldap:1.2.2"
+        kdu_instance = "stable-openldap-0005399828"
+        db_dict = {}
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        self.helm_conn._status_kdu = asynctest.CoroutineMock(return_value=None)
+        self.helm_conn._store_status = asynctest.CoroutineMock()
+        self.helm_conn._generate_release_name = Mock(return_value="stable-openldap-0005399828")
+
+        kdu_instance = await self.helm_conn.install(self.cluster_uuid,
+                                                    kdu_model,
+                                                    atomic=True,
+                                                    namespace=self.namespace,
+                                                    db_dict=db_dict)
+
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn._generate_release_name.assert_called_once_with("stable/openldap")
+        self.helm_conn._status_kdu.assert_called_once_with(cluster_id=self.cluster_id,
+                                                           kdu_instance=kdu_instance,
+                                                           namespace=self.namespace,
+                                                           show_error_log=False)
+        self.helm_conn._store_status.assert_called_with(cluster_id=self.cluster_id,
+                                                        kdu_instance=kdu_instance,
+                                                        namespace=self.namespace,
+                                                        db_dict=db_dict,
+                                                        operation="install",
+                                                        run_once=True,
+                                                        check_every=0)
+        command = "/usr/bin/helm3 install stable-openldap-0005399828 --atomic --output yaml   " \
+                  "--timeout 300s --namespace testk8s stable/openldap --version 1.2.2"
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=False)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_upgrade(self):
+        kdu_model = "stable/openldap:1.2.3"
+        kdu_instance = "stable-openldap-0005399828"
+        db_dict = {}
+        instance_info = {
+            "chart": "openldap-1.2.2",
+            "name": kdu_instance,
+            "namespace": self.namespace,
+            "revision": 1,
+            "status": "DEPLOYED"
+        }
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        self.helm_conn._store_status = asynctest.CoroutineMock()
+        self.helm_conn.get_instance_info = asynctest.CoroutineMock(return_value=instance_info)
+
+        await self.helm_conn.upgrade(self.cluster_uuid,
+                                     kdu_instance,
+                                     kdu_model,
+                                     atomic=True,
+                                     db_dict=db_dict)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn._store_status.assert_called_with(cluster_id=self.cluster_id,
+                                                        kdu_instance=kdu_instance,
+                                                        namespace=self.namespace,
+                                                        db_dict=db_dict,
+                                                        operation="upgrade",
+                                                        run_once=True,
+                                                        check_every=0)
+        command = "/usr/bin/helm3 upgrade stable-openldap-0005399828 stable/openldap " \
+                  "--namespace testk8s --atomic --output yaml  --timeout 300s  " \
+                  "--version 1.2.3"
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=False)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_rollback(self):
+        kdu_instance = "stable-openldap-0005399828"
+        db_dict = {}
+        instance_info = {
+            "chart": "openldap-1.2.3",
+            "name": kdu_instance,
+            "namespace": self.namespace,
+            "revision": 2,
+            "status": "DEPLOYED"
+        }
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        self.helm_conn._store_status = asynctest.CoroutineMock()
+        self.helm_conn.get_instance_info = asynctest.CoroutineMock(return_value=instance_info)
+
+        await self.helm_conn.rollback(self.cluster_uuid,
+                                      kdu_instance=kdu_instance,
+                                      revision=1,
+                                      db_dict=db_dict)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn._store_status.assert_called_with(cluster_id=self.cluster_id,
+                                                        kdu_instance=kdu_instance,
+                                                        namespace=self.namespace,
+                                                        db_dict=db_dict,
+                                                        operation="rollback",
+                                                        run_once=True,
+                                                        check_every=0)
+        command = "/usr/bin/helm3 rollback stable-openldap-0005399828 1 --namespace=testk8s --wait"
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=False)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_uninstall(self):
+        kdu_instance = "stable-openldap-0005399828"
+        instance_info = {
+            "chart": "openldap-1.2.2",
+            "name": kdu_instance,
+            "namespace": self.namespace,
+            "revision": 3,
+            "status": "DEPLOYED"
+        }
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        self.helm_conn._store_status = asynctest.CoroutineMock()
+        self.helm_conn.get_instance_info = asynctest.CoroutineMock(return_value=instance_info)
+
+        await self.helm_conn.uninstall(self.cluster_uuid, kdu_instance)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        command = "/usr/bin/helm3 uninstall {} --namespace={}".format(
+            kdu_instance, self.namespace)
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_get_services(self):
+        kdu_instance = "test_services_1"
+        service = {
+            "name": "testservice",
+            "type": "LoadBalancer"
+        }
+        self.helm_conn._local_async_exec_pipe = asynctest.CoroutineMock(return_value=("", 0))
+        self.helm_conn._parse_services = Mock(return_value=["testservice"])
+        self.helm_conn._get_service = asynctest.CoroutineMock(return_value=service)
+
+        services = await self.helm_conn.get_services(self.cluster_uuid, kdu_instance,
+                                                     self.namespace)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn._parse_services.assert_called_once()
+        command1 = "/usr/bin/helm3 get manifest {} --namespace=testk8s".format(kdu_instance)
+        command2 = "/usr/bin/kubectl get --namespace={} -f -".format(self.namespace)
+        self.helm_conn._local_async_exec_pipe.assert_called_once_with(command1, command2,
+                                                                      env=self.env,
+                                                                      raise_exception_on_error=True)
+        self.assertEqual(services, [service], "Invalid service returned from get_service")
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_get_service(self):
+        service_name = "service1"
+
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+        await self.helm_conn.get_service(self.cluster_uuid, service_name, self.namespace)
+
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        command = "/usr/bin/kubectl --kubeconfig=./tmp/helm3_cluster_id/.kube/config " \
+                  "--namespace=testk8s get service service1 -o=yaml"
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_inspect_kdu(self):
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        kdu_model = "stable/openldap:1.2.4"
+        repo_url = "https://kubernetes-charts.storage.googleapis.com/"
+        await self.helm_conn.inspect_kdu(kdu_model, repo_url)
+
+        command = "/usr/bin/helm3 show all openldap --repo " \
+                  "https://kubernetes-charts.storage.googleapis.com/ " \
+                  "--version 1.2.4"
+        self.helm_conn._local_async_exec.assert_called_with(command=command, encode_utf8=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_help_kdu(self):
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        kdu_model = "stable/openldap:1.2.4"
+        repo_url = "https://kubernetes-charts.storage.googleapis.com/"
+        await self.helm_conn.help_kdu(kdu_model, repo_url)
+
+        command = "/usr/bin/helm3 show readme openldap --repo " \
+                  "https://kubernetes-charts.storage.googleapis.com/ " \
+                  "--version 1.2.4"
+        self.helm_conn._local_async_exec.assert_called_with(command=command, encode_utf8=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_values_kdu(self):
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        kdu_model = "stable/openldap:1.2.4"
+        repo_url = "https://kubernetes-charts.storage.googleapis.com/"
+        await self.helm_conn.values_kdu(kdu_model, repo_url)
+
+        command = "/usr/bin/helm3 show values openldap --repo " \
+                  "https://kubernetes-charts.storage.googleapis.com/ " \
+                  "--version 1.2.4"
+        self.helm_conn._local_async_exec.assert_called_with(command=command, encode_utf8=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_instances_list(self):
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        await self.helm_conn.instances_list(self.cluster_uuid)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.reverse_sync.assert_called_once_with(from_path=self.cluster_id)
+        command = "/usr/bin/helm3 list --all-namespaces  --output yaml"
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=True)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_status_kdu(self):
+        kdu_instance = "stable-openldap-0005399828"
+        self.helm_conn._local_async_exec = asynctest.CoroutineMock(return_value=("", 0))
+
+        await self.helm_conn._status_kdu(self.cluster_id, kdu_instance,
+                                         self.namespace, return_text=True)
+        command = "/usr/bin/helm3 status {} --namespace={} --output yaml".format(
+            kdu_instance, self.namespace
+        )
+        self.helm_conn._local_async_exec.assert_called_once_with(command=command,
+                                                                 env=self.env,
+                                                                 raise_exception_on_error=True,
+                                                                 show_error_log=False)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_store_status(self):
+        kdu_instance = "stable-openldap-0005399828"
+        db_dict = {}
+        status = {
+            "info": {
+                "description": "Install complete",
+                "status": {
+                    "code": "1",
+                    "notes": "The openldap helm chart has been installed"
+                }
+            }
+        }
+        self.helm_conn._status_kdu = asynctest.CoroutineMock(return_value=status)
+        self.helm_conn.write_app_status_to_db = asynctest.CoroutineMock(return_value=status)
+
+        await self.helm_conn._store_status(cluster_id=self.cluster_id,
+                                           kdu_instance=kdu_instance,
+                                           namespace=self.namespace,
+                                           db_dict=db_dict,
+                                           operation="install",
+                                           run_once=True,
+                                           check_every=0)
+        self.helm_conn._status_kdu.assert_called_once_with(cluster_id=self.cluster_id,
+                                                           kdu_instance=kdu_instance,
+                                                           namespace=self.namespace,
+                                                           return_text=False)
+        self.helm_conn.write_app_status_to_db.assert_called_once_with(db_dict=db_dict,
+                                                                      status="Install complete",
+                                                                      detailed_status=str(status),
+                                                                      operation="install")
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_reset_uninstall_false(self):
+        self.helm_conn._uninstall_sw = asynctest.CoroutineMock()
+
+        await self.helm_conn.reset(self.cluster_uuid, force=False, uninstall_sw=False)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.file_delete.assert_called_once_with(self.cluster_id,
+                                                              ignore_non_exist=True)
+        self.helm_conn._uninstall_sw.assert_not_called()
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_reset_uninstall(self):
+        kdu_instance = 'stable-openldap-0021099429'
+        instances = [
+            {
+                'app_version': '2.4.48',
+                'chart': 'openldap-1.2.3',
+                'name': kdu_instance,
+                'namespace': self.namespace,
+                'revision': '1',
+                'status': 'deployed',
+                'updated': '2020-10-30 11:11:20.376744191 +0000 UTC'
+            }
+        ]
+        self.helm_conn._uninstall_sw = asynctest.CoroutineMock()
+        self.helm_conn.instances_list = asynctest.CoroutineMock(return_value=instances)
+        self.helm_conn.uninstall = asynctest.CoroutineMock()
+
+        await self.helm_conn.reset(self.cluster_uuid, force=True, uninstall_sw=True)
+        self.helm_conn.fs.sync.assert_called_once_with(from_path=self.cluster_id)
+        self.helm_conn.fs.file_delete.assert_called_once_with(self.cluster_id,
+                                                              ignore_non_exist=True)
+        self.helm_conn.instances_list.assert_called_once_with(cluster_uuid=self.cluster_uuid)
+        self.helm_conn.uninstall.assert_called_once_with(cluster_uuid=self.cluster_uuid,
+                                                         kdu_instance=kdu_instance)
+        self.helm_conn._uninstall_sw.assert_called_once_with(self.cluster_id, self.namespace)
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_sync_repos_add(self):
+        repo_list = [
+            {
+                "name": "stable",
+                "url": "https://kubernetes-charts.storage.googleapis.com/"
+            }
+        ]
+        self.helm_conn.repo_list = asynctest.CoroutineMock(return_value=repo_list)
+
+        def get_one_result(*args, **kwargs):
+            if args[0] == "k8sclusters":
+                return {
+                    "_admin": {
+                        "helm_chart_repos" : [
+                            "4b5550a9-990d-4d95-8a48-1f4614d6ac9c"
+                        ]
+                    }
+                }
+            elif args[0] == "k8srepos":
+                return {
+                    "_id": "4b5550a9-990d-4d95-8a48-1f4614d6ac9c",
+                    "type": "helm-chart",
+                    "name": "bitnami",
+                    "url": "https://charts.bitnami.com/bitnami"
+                }
+        self.helm_conn.db.get_one = asynctest.Mock()
+        self.helm_conn.db.get_one.side_effect = get_one_result
+
+        self.helm_conn.repo_add = asynctest.CoroutineMock()
+        self.helm_conn.repo_remove = asynctest.CoroutineMock()
+
+        deleted_repo_list, added_repo_dict = await self.helm_conn.synchronize_repos(
+            self.cluster_uuid)
+        self.helm_conn.repo_remove.assert_not_called()
+        self.helm_conn.repo_add.assert_called_once_with(self.cluster_uuid, "bitnami",
+                                                        "https://charts.bitnami.com/bitnami")
+        self.assertEqual(deleted_repo_list, [], "Deleted repo list should be empty")
+        self.assertEqual(added_repo_dict,
+                         {"4b5550a9-990d-4d95-8a48-1f4614d6ac9c": "bitnami"},
+                         "Repos added should include only one bitnami")
+
+    @asynctest.fail_on(active_handles=True)
+    async def test_sync_repos_delete(self):
+        repo_list = [
+            {
+                "name": "stable",
+                "url": "https://kubernetes-charts.storage.googleapis.com/"
+            },
+            {
+                "name": "bitnami",
+                "url": "https://charts.bitnami.com/bitnami"
+            }
+        ]
+        self.helm_conn.repo_list = asynctest.CoroutineMock(return_value=repo_list)
+
+        def get_one_result(*args, **kwargs):
+            if args[0] == "k8sclusters":
+                return {
+                    "_admin": {
+                        "helm_chart_repos": []
+                    }
+                }
+
+        self.helm_conn.db.get_one = asynctest.Mock()
+        self.helm_conn.db.get_one.side_effect = get_one_result
+
+        self.helm_conn.repo_add = asynctest.CoroutineMock()
+        self.helm_conn.repo_remove = asynctest.CoroutineMock()
+
+        deleted_repo_list, added_repo_dict = await self.helm_conn.synchronize_repos(
+            self.cluster_uuid)
+        self.helm_conn.repo_add.assert_not_called()
+        self.helm_conn.repo_remove.assert_called_once_with(self.cluster_uuid, "bitnami")
+        self.assertEqual(deleted_repo_list, ["bitnami"], "Deleted repo list should be bitnami")
+        self.assertEqual(added_repo_dict, {}, "No repos should be added")