Adds octavia client integration

Change-Id: I8ebec7f260c4b7a8c7202f6161d2a5947463ac50

requirements.txt

@@ -14,6 +14,7 @@ pbr>=4.0.0                    # Apache-2.0
 python-heatclient>=1.5.0      # Apache-2.0
 python-neutronclient>=6.7.0   # Apache-2.0
 python-novaclient>=9.1.0      # Apache-2.0
+python-octaviaclient>=1.9.0   # Apache-2.0
 python-openstackclient>=3.0.0 # Apache-2.0
 stestr>=2.0                   # Apache-2.0
 six>=1.10.0                   # MIT

tobiko/openstack/octavia/__init__.py

@@ -0,0 +1,21 @@
+# Copyright 2019 Red Hat
+#
+#    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 __future__ import absolute_import
+
+from tobiko.openstack.octavia import _client
+
+
+octavia_client = _client.octavia_client
+get_octavia_client = _client.get_octavia_client
+OctaviaClientFixture = _client.OctaviaClientFixture

tobiko/openstack/octavia/_client.py

@@ -0,0 +1,62 @@
+# Copyright 2019 Red Hat
+#
+#    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 __future__ import absolute_import
+
+from octaviaclient.api.v2 import octavia
+
+import tobiko
+from tobiko.openstack import _client
+from tobiko.openstack import keystone
+
+
+class OctaviaClientFixture(_client.OpenstackClientFixture):
+
+    def init_client(self, session):
+        keystone_client = keystone.get_keystone_client(session=session)
+        endpoint = keystone.find_service_endpoint(name='octavia',
+                                                  client=keystone_client)
+        return octavia.OctaviaAPI(session=session, endpoint=endpoint.url)
+
+
+class OctaviaClientManatger(_client.OpenstackClientManager):
+
+    def create_client(self, session):
+        return OctaviaClientFixture(session=session)
+
+
+CLIENTS = OctaviaClientManatger()
+
+
+def octavia_client(obj):
+    if not obj:
+        return get_octavia_client()
+
+    if isinstance(obj, octavia.OctaviaAPI):
+        return obj
+
+    fixture = tobiko.setup_fixture(obj)
+    if isinstance(fixture, OctaviaClientFixture):
+        return fixture.client
+
+    message = "Object {!r} is not an OctaviaClientFixture".format(obj)
+    raise TypeError(message)
+
+
+def get_octavia_client(session=None, shared=True, init_client=None,
+                       manager=None):
+    manager = manager or CLIENTS
+    client = manager.get_client(session=session, shared=shared,
+                                init_client=init_client)
+    tobiko.setup_fixture(client)
+    return client.client

tobiko/tests/unit/openstack/octavia/test_client.py

@@ -0,0 +1,106 @@
+# Copyright 2019 Red Hat
+#
+#    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 __future__ import absolute_import
+
+import inspect
+
+from keystoneclient.v3 import endpoints
+from octaviaclient.api.v2 import octavia as octaviaclient
+
+from tobiko.openstack import keystone
+from tobiko.openstack import octavia
+from tobiko.tests import unit
+from tobiko.tests.unit import openstack
+from tobiko.tests.unit.openstack import test_client
+
+
+class KeystoneModulePatch(unit.PatchFixture):
+
+    client = object()
+    endpoint = endpoints.Endpoint(manager=None,
+                                  info={'url': 'http://some/endpoint'})
+    session = None
+    name = None
+
+    def setup_fixture(self):
+        module = inspect.getmodule(octavia.OctaviaClientFixture)
+        self.patch(module, 'keystone', self)
+
+    def get_keystone_client(self, session):
+        self.session = session
+        return self.client
+
+    def find_service_endpoint(self, name, client):
+        self.name = name
+        assert self.client is client
+        return self.endpoint
+
+
+class OctaviaClientFixtureTest(test_client.OpenstackClientFixtureTest):
+
+    def setUp(self):
+        super(OctaviaClientFixtureTest, self).setUp()
+        self.useFixture(KeystoneModulePatch())
+
+    def create_client(self, session=None):
+        return octavia.OctaviaClientFixture(session=session)
+
+
+class GetOctaviaClientTest(openstack.OpenstackTest):
+
+    def setUp(self):
+        super(GetOctaviaClientTest, self).setUp()
+        self.useFixture(KeystoneModulePatch())
+
+    def test_get_octavia_client(self, session=None, shared=True):
+        client1 = octavia.get_octavia_client(session=session, shared=shared)
+        client2 = octavia.get_octavia_client(session=session, shared=shared)
+        if shared:
+            self.assertIs(client1, client2)
+        else:
+            self.assertIsNot(client1, client2)
+        self.assertIsInstance(client1, octaviaclient.OctaviaAPI)
+        self.assertIsInstance(client2, octaviaclient.OctaviaAPI)
+
+    def test_get_octavia_client_with_not_shared(self):
+        self.test_get_octavia_client(shared=False)
+
+    def test_get_octavia_client_with_session(self):
+        session = keystone.get_keystone_session()
+        self.test_get_octavia_client(session=session)
+
+
+class OctaviaClientTest(openstack.OpenstackTest):
+
+    def setUp(self):
+        super(OctaviaClientTest, self).setUp()
+        self.useFixture(KeystoneModulePatch())
+
+    def test_octavia_client_with_none(self):
+        default_client = octavia.get_octavia_client()
+        client = octavia.octavia_client(None)
+        self.assertIsInstance(client, octaviaclient.OctaviaAPI)
+        self.assertIs(default_client, client)
+
+    def test_octavia_client_with_client(self):
+        default_client = octavia.get_octavia_client()
+        client = octavia.octavia_client(default_client)
+        self.assertIsInstance(client, octaviaclient.OctaviaAPI)
+        self.assertIs(default_client, client)
+
+    def test_octavia_client_with_fixture(self):
+        fixture = octavia.OctaviaClientFixture()
+        client = octavia.octavia_client(fixture)
+        self.assertIsInstance(client, octaviaclient.OctaviaAPI)
+        self.assertIs(client, fixture.client)