Support Kubernetes as VIM in Tacker

This patch add kubernetes_driver in vim nfvo and kubernetes_utils to support
CRUD Kubernetes cluster VIM (register, deregister, delete and update).

Partially Implements: blueprint kubernetes-as-vim

Change-Id: Ib1bf4d78ca4796c4e0297bca6fc7e9f004078242

doc/source/install/kubernetes_vim_installation.rst

@@ -143,8 +143,8 @@ kuryr-kubernetes to get more information [#third]_.
 
 5. Register Kubernetes VIM
 
-In vim_config.yaml, project_name is namespace in Kubernetes environment
-where user will deploy Pod, Deployment or Horizontal Pod Autoscaling, etc.
+In vim_config.yaml, project_name is fixed as "default", that will use to
+support multi tenant on Kubernetes in the future.
 
 * Create vim_config.yaml file for Kubernetes VIM as the following examples:
 
@@ -233,6 +233,7 @@ authentication.
   username: "admin"
   password: "admin"
   project_name: "default"
+  ssl_ca_cert: None
   type: "kubernetes"
 
 
@@ -250,4 +251,3 @@ References
 .. [#second] https://github.com/openstack/tacker/blob/master/devstack/local.conf.example
 .. [#third] https://github.com/openstack/kuryr-kubernetes/blob/master/doc/source/installation/testing_connectivity.rst
 .. [#fourth] https://kubernetes.io/docs/admin/authentication
-

releasenotes/notes/kubernetes-as-vim-56828fbe085ed279.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add support Kubernetes VIM, user can create, update or delete
+    Kubernetes VIM

requirements.txt

@@ -43,3 +43,6 @@ paramiko>=2.0.0 # LGPLv2.1+
 pyroute2>=0.4.21;sys_platform!='win32' # Apache-2.0 (+ dual licensed GPL2)
 python-mistralclient>=3.1.0 # Apache-2.0
 python-barbicanclient!=4.5.0,!=4.5.1,>=4.0.0 # Apache-2.0
+kubernetes>=1.0.0 # Apache-2.0
+setuptools>=16.0,!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0  # PSF/ZPL
+PyYAML>=3.10  # MIT

setup.cfg

@@ -47,6 +47,7 @@ tacker.service_plugins =
     commonservices = tacker.plugins.common_services.common_services_plugin:CommonServicesPlugin
 tacker.nfvo.vim.drivers =
     openstack = tacker.nfvo.drivers.vim.openstack_driver:OpenStack_Driver
+    kubernetes = tacker.nfvo.drivers.vim.kubernetes_driver:Kubernetes_Driver
 tacker.openstack.common.cache.backends =
     memory = tacker.openstack.common.cache._backends.memory:MemoryBackend
 tacker.tacker.vnfm.drivers =
@@ -71,6 +72,7 @@ oslo.config.opts =
     tacker.service = tacker.service:config_opts
     tacker.nfvo.nfvo_plugin = tacker.nfvo.nfvo_plugin:config_opts
     tacker.nfvo.drivers.vim.openstack_driver = tacker.nfvo.drivers.vim.openstack_driver:config_opts
+    tacker.nfvo.drivers.vim.kubernetes_driver = tacker.nfvo.drivers.vim.kubernetes_driver:config_opts
     tacker.keymgr = tacker.keymgr:config_opts
     tacker.vnfm.monitor = tacker.vnfm.monitor:config_opts
     tacker.vnfm.plugin = tacker.vnfm.plugin:config_opts

tacker/common/container/kubernetes_utils.py

@@ -0,0 +1,92 @@
+# All Rights Reserved.
+#
+#
+#    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.
+
+import os
+import re
+import six
+import tempfile
+
+from cryptography import fernet
+from kubernetes import client
+from kubernetes.client import api_client
+from oslo_config import cfg
+from oslo_log import log as logging
+
+LOG = logging.getLogger(__name__)
+CONF = cfg.CONF
+
+
+class KubernetesHTTPAPI(object):
+
+    def get_k8sClient(self, auth_plugin):
+        config = client.ConfigurationObject()
+        config.host = auth_plugin['auth_url']
+        if ('username' in auth_plugin) and ('password' in auth_plugin)\
+                and (auth_plugin['password'] is not None):
+            config.username = auth_plugin['username']
+            config.password = auth_plugin['password']
+            basic_token = config.get_basic_auth_token()
+            config.api_key['authorization'] = basic_token
+        if 'bearer_token' in auth_plugin:
+            config.api_key_prefix['authorization'] = 'Bearer'
+            config.api_key['authorization'] = auth_plugin['bearer_token']
+        ca_cert_file = auth_plugin.get('ca_cert_file')
+        if ca_cert_file is not None:
+            config.ssl_ca_cert = ca_cert_file
+            config.verify_ssl = True
+        else:
+            config.verify_ssl = False
+        k8s_client = api_client.ApiClient(config=config)
+        return k8s_client
+
+    def initialize_ExtensionApiClient(self, auth):
+        k8s_client = self.get_k8sClient(auth_plugin=auth)
+        return client.ExtensionsV1beta1Api(api_client=k8s_client)
+
+    def initialize_CoreApiV1Client(self, auth):
+        k8s_client = self.get_k8sClient(auth_plugin=auth)
+        return client.CoreV1Api(api_client=k8s_client)
+
+    def initialize_CoreApiClient(self, auth):
+        k8s_client = self.get_k8sClient(auth_plugin=auth)
+        return client.CoreApi(api_client=k8s_client)
+
+    @staticmethod
+    def create_ca_cert_tmp_file(ca_cert):
+        file_descriptor, file_path = tempfile.mkstemp()
+        ca_cert = re.sub(r'\s', '\n', ca_cert)
+        ca_cert = re.sub(r'BEGIN\nCERT', r'BEGIN CERT', ca_cert)
+        ca_cert = re.sub(r'END\nCERT', r'END CERT', ca_cert)
+        try:
+            with open(file_path, 'w') as f:
+                if six.PY2:
+                    f.write(ca_cert.decode('utf-8'))
+                else:
+                    f.write(ca_cert)
+                LOG.debug('ca cert temp file successfully stored in %s',
+                          file_path)
+        except IOError:
+            raise Exception('Failed to create %s file', file_path)
+        return file_descriptor, file_path
+
+    @staticmethod
+    def close_tmp_file(file_descriptor, file_path):
+        os.close(file_descriptor)
+        os.remove(file_path)
+
+    def create_fernet_key(self):
+        fernet_key = fernet.Fernet.generate_key()
+        fernet_obj = fernet.Fernet(fernet_key)
+        return fernet_key, fernet_obj

tacker/extensions/nfvo.py

@@ -59,6 +59,10 @@ class VimKeyNotFoundException(exceptions.TackerException):
     message = _("Unable to find key file for VIM %(vim_id)s")
 
 
+class VimEncryptKeyError(exceptions.TackerException):
+    message = _("Barbican must be enabled for VIM %(vim_id)s")
+
+
 class VimUnsupportedResourceTypeException(exceptions.TackerException):
     message = _("Resource type %(type)s is unsupported by VIM")
 

tacker/nfvo/drivers/vim/kubernetes_driver.py

@@ -0,0 +1,227 @@
+# All Rights Reserved.
+#
+#
+#    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.
+
+from oslo_config import cfg
+from oslo_log import log as logging
+
+from tacker._i18n import _
+from tacker.common.container import kubernetes_utils
+from tacker.common import log
+from tacker.extensions import nfvo
+from tacker.keymgr import API as KEYMGR_API
+from tacker.nfvo.drivers.vim import abstract_vim_driver
+
+LOG = logging.getLogger(__name__)
+CONF = cfg.CONF
+
+KUBERNETES_OPTS = [
+    cfg.BoolOpt('use_barbican', default=True,
+                help=_('Use barbican to encrypt vim password if True'
+                       ', save vim credentials in local file system'
+                       'if False'))
+]
+cfg.CONF.register_opts(KUBERNETES_OPTS, 'k8s_vim')
+
+
+def config_opts():
+    return [('k8s_vim', KUBERNETES_OPTS)]
+
+
+class Kubernetes_Driver(abstract_vim_driver.VimAbstractDriver):
+    """Driver for Kubernetes VIM
+
+    """
+
+    def __init__(self):
+        self.kubernetes = kubernetes_utils.KubernetesHTTPAPI()
+
+    def get_type(self):
+        return 'kubernetes'
+
+    def get_name(self):
+        return 'Kubernetes VIM Driver'
+
+    def get_description(self):
+        return 'Kubernetes VIM Driver'
+
+    def authenticate_vim(self, vim_obj):
+        """Validate VIM auth attributes
+
+        """
+        auth_cred, file_descriptor = self._get_auth_creds(vim_obj)
+        self._validate_vim(auth_cred, file_descriptor)
+        self.clean_authenticate_vim(auth_cred, file_descriptor)
+
+    def _get_auth_creds(self, vim_obj):
+        auth_cred = vim_obj['auth_cred']
+        file_descriptor = self._create_ssl_ca_file(auth_cred)
+        auth_cred['auth_url'] = vim_obj['auth_url']
+        if ('username' not in auth_cred) and ('password' not in auth_cred):
+            auth_cred['username'] = 'None'
+            auth_cred['password'] = None
+        return auth_cred, file_descriptor
+
+    def _create_ssl_ca_file(self, auth_cred):
+        ca_cert = auth_cred['ssl_ca_cert']
+        if ca_cert is not None:
+            file_descriptor, file_path = \
+                self.kubernetes.create_ca_cert_tmp_file(ca_cert)
+            auth_cred['ca_cert_file'] = file_path
+            return file_descriptor
+        else:
+            return None
+
+    def _validate_vim(self, auth, file_descriptor):
+        # If Tacker can get k8s_info, Kubernetes authentication is valid
+        # if not, it is invalid
+        try:
+            auth_dict = dict(auth)
+            k8s_coreClient = \
+                self.kubernetes.initialize_CoreApiClient(auth_dict)
+            k8s_info = k8s_coreClient.get_api_versions()
+            LOG.info(k8s_info)
+        except Exception as e:
+            LOG.info('VIM Kubernetes authentication is wrong.')
+            # delete temp file
+            self.clean_authenticate_vim(auth_dict, file_descriptor)
+            raise nfvo.VimUnauthorizedException(message=str(e))
+
+    def _initialize_k8s_extensionClient(self, auth):
+        k8s_extensionClient =\
+            self.kubernetes.initialize_ExtensionApiClient(auth)
+        return k8s_extensionClient
+
+    def _initialize_k8s_coreV1Client(self, auth):
+        k8s_coreV1Client =\
+            self.kubernetes.initialize_CoreApiV1Client(auth)
+        return k8s_coreV1Client
+
+    def _find_regions(self, k8s_coreV1Client):
+        list_namespaces = k8s_coreV1Client.list_namespace()
+        namespaces = [namespace.metadata.name
+                      for namespace in list_namespaces.items]
+        return namespaces
+
+    def discover_placement_attr(self, vim_obj):
+        """Fetch VIM placement information
+
+        Attributes can include regions, AZ, namespaces.
+        """
+        # in Kubernetes environment, user can deploy resource
+        # on specific namespace
+        auth_cred, file_descriptor = self._get_auth_creds(vim_obj)
+        k8s_coreV1Client = \
+            self.kubernetes.initialize_CoreApiV1Client(auth_cred)
+        namespace_list = self._find_regions(k8s_coreV1Client)
+        self.clean_authenticate_vim(auth_cred, file_descriptor)
+        vim_obj['placement_attr'] = {'regions': namespace_list}
+        return vim_obj
+
+    def clean_authenticate_vim(self, vim_auth, file_descriptor):
+        # remove ca_cert_file from vim_obj if it exists
+        # close and delete temp ca_cert_file
+        if file_descriptor is not None:
+            file_path = vim_auth.pop('ca_cert_file')
+            self.kubernetes.close_tmp_file(file_descriptor, file_path)
+
+    @log.log
+    def register_vim(self, context, vim_obj):
+        """Validate Kubernetes VIM."""
+        if 'key_type' in vim_obj['auth_cred']:
+            vim_obj['auth_cred'].pop(u'key_type')
+        if 'secret_uuid' in vim_obj['auth_cred']:
+            vim_obj['auth_cred'].pop(u'secret_uuid')
+        self.authenticate_vim(vim_obj)
+        self.discover_placement_attr(vim_obj)
+        self.encode_vim_auth(context, vim_obj['id'],
+                             vim_obj['auth_cred'])
+        LOG.debug('VIM registration completed for %s', vim_obj)
+
+    @log.log
+    def deregister_vim(self, context, vim_obj):
+        """Deregister Kubernetes VIM from NFVO
+
+        Delete VIM keys from file system
+        """
+        self.delete_vim_auth(context, vim_obj['id'],
+                             vim_obj['auth_cred'])
+
+    @log.log
+    def delete_vim_auth(self, context, vim_id, auth):
+        """Delete kubernetes vim information
+
+        Delete vim key stored in file system
+        """
+        if 'secret_uuid' in auth:
+            # Delete secret id of barbican
+            LOG.debug('Attempting to delete key for vim id %s',
+                      vim_id)
+            if auth.get('key_type') == 'barbican_key':
+                try:
+                    keystone_conf = CONF.keystone_authtoken
+                    secret_uuid = auth['secret_uuid']
+                    keymgr_api = KEYMGR_API(keystone_conf.auth_url)
+                    keymgr_api.delete(context, secret_uuid)
+                    LOG.debug('VIM key deleted successfully for vim %s',
+                              vim_id)
+                except Exception as exception:
+                    LOG.warning('VIM key deletion failed for vim %s due to %s',
+                                vim_id,
+                                exception)
+                    raise
+            else:
+                raise nfvo.VimEncryptKeyError(vim_id=vim_id)
+
+    @log.log
+    def encode_vim_auth(self, context, vim_id, auth):
+        """Encode VIM credentials
+
+         Store VIM auth using fernet key encryption
+         """
+        fernet_key, fernet_obj = self.kubernetes.create_fernet_key()
+        if ('password' in auth) and (auth['password'] is not None):
+            encoded_auth = fernet_obj.encrypt(
+                auth['password'].encode('utf-8'))
+            auth['password'] = encoded_auth
+        if 'bearer_token' in auth:
+            encoded_auth = fernet_obj.encrypt(
+                auth['bearer_token'].encode('utf-8'))
+            auth['bearer_token'] = encoded_auth
+        if ('ssl_ca_cert' in auth) and (auth['ssl_ca_cert'] is not None):
+            encoded_auth = fernet_obj.encrypt(
+                auth['ssl_ca_cert'].encode('utf-8'))
+            auth['ssl_ca_cert'] = encoded_auth
+
+        if CONF.k8s_vim.use_barbican:
+            try:
+                keystone_conf = CONF.keystone_authtoken
+                keymgr_api = KEYMGR_API(keystone_conf.auth_url)
+                secret_uuid = keymgr_api.store(context, fernet_key)
+
+                auth['key_type'] = 'barbican_key'
+                auth['secret_uuid'] = secret_uuid
+                LOG.debug('VIM auth successfully stored for vim %s',
+                          vim_id)
+            except Exception as exception:
+                LOG.warning('VIM key creation failed for vim %s due to %s',
+                            vim_id,
+                            exception)
+                raise
+        else:
+            raise nfvo.VimEncryptKeyError(vim_id=vim_id)
+
+    def get_vim_resource_id(self):
+        # TODO(phuoc): will update which vim resource need to get
+        pass

tacker/nfvo/nfvo_plugin.py

@@ -70,7 +70,7 @@ class NfvoPlugin(nfvo_db_plugin.NfvoPluginDb, vnffg_db.VnffgPluginDbMixin,
 
     OPTS = [
         cfg.ListOpt(
-            'vim_drivers', default=['openstack'],
+            'vim_drivers', default=['openstack', 'kubernetes'],
             help=_('VIM driver for launching VNFs')),
         cfg.IntOpt(
             'monitor_interval', default=30,
@@ -140,24 +140,44 @@ class NfvoPlugin(nfvo_db_plugin.NfvoPluginDb, vnffg_db.VnffgPluginDbMixin,
         old_auth_need_delete = False
         new_auth_created = False
         try:
-            # re-register the VIM only if there is a change in password.
+            # re-register the VIM only if there is a change in bearer_token,
+            # username, password or bearer_token.
             # auth_url of auth_cred is from vim object which
             # is not updatable. so no need to consider it
             if 'auth_cred' in update_args:
                 auth_cred = update_args['auth_cred']
-                if 'password' in auth_cred:
+                if ('username' in auth_cred) and ('password' in auth_cred)\
+                        and (auth_cred['password'] is not None):
+                    # update new username and password, remove bearer_token
+                    # if it exists in the old vim
+                    vim_obj['auth_cred']['username'] = auth_cred['username']
                     vim_obj['auth_cred']['password'] = auth_cred['password']
-                    # Notice: vim_obj may be updated in vim driver's
-                    self._vim_drivers.invoke(vim_type,
-                                             'register_vim',
-                                             context=context,
-                                             vim_obj=vim_obj)
-                    new_auth_created = True
+                    if 'bearer_token' in vim_obj['auth_cred']:
+                        vim_obj['auth_cred'].pop('bearer_token')
+                elif 'bearer_token' in auth_cred:
+                    # update bearer_token, remove username and password
+                    # if they exist in the old vim
+                    vim_obj['auth_cred']['bearer_token'] =\
+                        auth_cred['bearer_token']
+                    if ('username' in vim_obj['auth_cred']) and\
+                            ('password' in vim_obj['auth_cred']):
+                        vim_obj['auth_cred'].pop('username')
+                        vim_obj['auth_cred'].pop('password')
+                if 'ssl_ca_cert' in auth_cred:
+                    # update new ssl_ca_cert
+                    vim_obj['auth_cred']['ssl_ca_cert'] =\
+                        auth_cred['ssl_ca_cert']
+                # Notice: vim_obj may be updated in vim driver's
+                self._vim_drivers.invoke(vim_type,
+                                         'register_vim',
+                                         context=context,
+                                         vim_obj=vim_obj)
+                new_auth_created = True
 
-                    # Check whether old vim's auth need to be deleted
-                    old_key_type = old_vim_obj['auth_cred'].get('key_type')
-                    if old_key_type == 'barbican_key':
-                        old_auth_need_delete = True
+                # Check whether old vim's auth need to be deleted
+                old_key_type = old_vim_obj['auth_cred'].get('key_type')
+                if old_key_type == 'barbican_key':
+                    old_auth_need_delete = True
 
             vim_obj = super(NfvoPlugin, self).update_vim(
                 context, vim_id, vim_obj)

tacker/nfvo/workflows/vim_monitor/vim_monitor_utils.py

@@ -62,7 +62,11 @@ def delete_workflow(mistral_client, vim_id):
 def monitor_vim(auth_dict, vim_obj):
     mc = get_mistral_client(auth_dict)
     auth_url = vim_obj["auth_url"]
-    vim_ip = auth_url.split("//")[-1].split(":")[0].split("/")[0]
+    vim_type = vim_obj['type']
+    if vim_type == 'openstack':
+        vim_ip = auth_url.split("//")[-1].split(":")[0].split("/")[0]
+    elif vim_type == 'kubernetes':
+        vim_ip = auth_url.split("//")[-1].split(":")[0]
     workflow_input_dict = {
         'vim_id': vim_obj['id'],
         'count': cfg.CONF.vim_monitor.count,

tacker/tests/unit/nfvo/drivers/vim/test_kubernetes_driver.py

@@ -0,0 +1,146 @@
+# All Rights Reserved.
+#
+# 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.
+
+from collections import namedtuple
+import mock
+from tacker.nfvo.drivers.vim import kubernetes_driver
+from tacker.tests.unit import base
+
+
+class FakeKubernetesAPI(mock.Mock):
+    pass
+
+
+class FakeKeymgrAPI(mock.Mock):
+    pass
+
+
+class mock_dict(dict):
+    def __getattr__(self, item):
+        return self.get(item)
+    __setattr__ = dict.__setitem__
+    __delattr__ = dict.__delitem__
+
+
+class TestKubernetes_Driver(base.TestCase):
+    def setUp(self):
+        super(TestKubernetes_Driver, self).setUp()
+        self._mock_kubernetes()
+        self.config_fixture.config(group='k8s_vim', use_barbican=True)
+        self.kubernetes_driver = kubernetes_driver.Kubernetes_Driver()
+        self.vim_obj = self.get_vim_obj()
+        self.addCleanup(mock.patch.stopall)
+        self._mock_keymgr()
+
+    def _mock_kubernetes(self):
+        self.kubernetes_api = mock.Mock(wraps=FakeKubernetesAPI())
+        fake_kubernetes_api = mock.Mock()
+        fake_kubernetes_api.return_value = self.kubernetes_api
+        self._mock('tacker.common.container.kubernetes_utils.'
+                   'KubernetesHTTPAPI', fake_kubernetes_api)
+
+    def _mock_keymgr(self):
+        self.keymgr = mock.Mock(wraps=FakeKeymgrAPI())
+        fake_keymgr = mock.Mock()
+        fake_keymgr.return_value = self.keymgr
+        self._mock(
+            'tacker.keymgr.barbican_key_manager.BarbicanKeyManager',
+            fake_keymgr)
+
+    def get_vim_obj(self):
+        return {'id': '647a91c3-d436-43e6-a1e8-71118dde84ce',
+                'type': 'kubernetes',
+                'auth_url': 'https://localhost:6443',
+                'auth_cred': {'username': 'test_user',
+                              'password': 'test_password',
+                              'ssl_ca_cert': None},
+                'name': 'vim-kubernetes',
+                'vim_project': {'name': 'default'}}
+
+    def get_vim_obj_barbican(self):
+        return {'id': '647a91c3-d436-43e6-a1e8-71118dde84ce',
+                'type': 'kubernetes',
+                'auth_url': 'https://localhost:6443',
+                'auth_cred': {'username': 'test_user',
+                              'password': 'test_password',
+                              'ssl_ca_cert': 'abcxyz',
+                              'key_type': 'barbican_key',
+                              'secret_uuid': 'fake-secret-uuid'},
+                'name': 'vim-kubernetes',
+                'vim_project': {'name': 'default'}}
+
+    def test_register_k8sclient(self):
+        dict = {'name': 'default'}
+        name = namedtuple("name", dict.keys())(*dict.values())
+        dict = {'metadata': name}
+        metadata = namedtuple("metadata", dict.keys())(*dict.values())
+        dict = {'items': [metadata]}
+        namespaces = namedtuple("namespace", dict.keys())(*dict.values())
+        attrs = {'list_namespace.return_value': namespaces}
+        mock_k8s_client = mock.Mock()
+        mock_k8s_coreV1Client = mock.Mock(**attrs)
+        auth_obj = {'username': 'test_user',
+                    'password': 'test_password',
+                    'ssl_ca_cert': None,
+                    'auth_url': 'https://localhost:6443'}
+        self._test_register_vim(self.vim_obj, mock_k8s_client,
+                                mock_k8s_coreV1Client)
+        mock_k8s_coreV1Client.list_namespace.assert_called_once_with()
+        self.kubernetes_api.\
+            initialize_CoreApiClient.assert_called_once_with(auth_obj)
+
+    def _test_register_vim(self, vim_obj, mock_k8s_client,
+                           mock_k8s_coreV1Client):
+        self.kubernetes_api.\
+            initialize_CoreApiClient.return_value = mock_k8s_client
+        self.kubernetes_api.\
+            initialize_CoreApiV1Client.return_value = mock_k8s_coreV1Client
+        fernet_attrs = {'encrypt.return_value': 'encrypted_password'}
+        mock_fernet_obj = mock.Mock(**fernet_attrs)
+        mock_fernet_key = 'test_fernet_key'
+        self.kubernetes_api.create_fernet_key.return_value = (mock_fernet_key,
+                                                              mock_fernet_obj)
+        self.kubernetes_api.create_ca_cert_tmp_file.\
+            return_value = ('file_descriptor', 'file_path')
+        self.kubernetes_driver.register_vim(None, vim_obj)
+        mock_fernet_obj.encrypt.assert_called_once_with(mock.ANY)
+
+    def test_deregister_vim_barbican(self):
+        self.keymgr.delete.return_value = None
+        vim_obj = self.get_vim_obj_barbican()
+        self.kubernetes_driver.deregister_vim(None, vim_obj)
+        self.keymgr.delete.assert_called_once_with(
+            None, 'fake-secret-uuid')
+
+    def test_encode_vim_auth_barbican(self):
+        self.config_fixture.config(group='k8s_vim',
+                                   use_barbican=True)
+        fernet_attrs = {'encrypt.return_value': 'encrypted_password'}
+        mock_fernet_obj = mock.Mock(**fernet_attrs)
+        mock_fernet_key = 'test_fernet_key'
+        self.keymgr.store.return_value = 'fake-secret-uuid'
+        self.kubernetes_api.create_fernet_key.return_value = (mock_fernet_key,
+                                                              mock_fernet_obj)
+
+        vim_obj = self.get_vim_obj()
+        self.kubernetes_driver.encode_vim_auth(
+            None, vim_obj['id'], vim_obj['auth_cred'])
+
+        self.keymgr.store.assert_called_once_with(
+            None, 'test_fernet_key')
+        mock_fernet_obj.encrypt.assert_called_once_with(mock.ANY)
+        self.assertEqual(vim_obj['auth_cred']['key_type'],
+                         'barbican_key')
+        self.assertEqual(vim_obj['auth_cred']['secret_uuid'],
+                         'fake-secret-uuid')