Add in-tree tempest tests

To give more flexibility for tempest test coverage, use the tempest plugin
interface to add tempest tests to the Cinder repo.

Just the plumbing for now. A temporary tempest test was added just for
validation. This test should be removed once additional tests are added.

Third party CIs should change their command line from:

    tox -e all -- volume

To something like:

    tox -e all-plugin -- volume

Change-Id: I679b1cee6dc9187fd2b11c47a14be9f7acdad938
Implements: blueprint add-intree-tempest-tests

setup.cfg

@@ -73,6 +73,9 @@ oslo_middleware =
 
 cinder.database.migration_backend =
     sqlalchemy = oslo_db.sqlalchemy.migration
+# In-tree Tempest test entry point
+tempest.test_plugins =
+    cinder_tests = tempest_tests.plugin:CinderTempestPlugin
 
 [build_sphinx]
 all_files = 1

tempest_tests/README.rst

@@ -0,0 +1,62 @@
+===============================================
+Tempest Integration for Cinder
+===============================================
+
+This directory contains additional Cinder tempest tests.
+
+See the tempest plugin docs for information on using it:
+http://docs.openstack.org/developer/tempest/plugin.html#using-plugins
+
+To run all tests from this plugin, install cinder into your environment. Then
+from the tempest directory run::
+
+    $ tox -e all-plugin -- volume
+
+
+It is expected that Cinder third party CI's use the all-plugin tox environment
+above for all test runs. Developers can also use this locally to perform more
+extensive testing.
+
+Any typical devstack instance should be able to run all Cinder plugin tests.
+For completeness, here is an example of a devstack local.conf that should
+work. Update backend information to fit your environment.
+
+::
+
+    [[local|localrc]]
+    VIRT_DRIVER=libvirt
+    ADMIN_PASSWORD=secret
+    SERVICE_TOKEN=$ADMIN_PASSWORD
+    MYSQL_PASSWORD=$ADMIN_PASSWORD
+    RABBIT_PASSWORD=$ADMIN_PASSWORD
+    SERVICE_PASSWORD=$ADMIN_PASSWORD
+    SCREEN_LOGDIR=/opt/stack/screen-logs
+    LOGFILE=$DEST/logs/stack.sh.log
+    LOGDAYS=2
+    SYSLOG=False
+    LOG_COLOR=False
+    RECLONE=yes
+    ENABLED_SERVICES=c-api,c-sch,c-vol,cinder,dstat,g-api,g-reg,key,mysql,
+                     n-api,n-cond,n-cpu,n-crt,n-net,n-sch,rabbit,tempest
+    CINDER_ENABLED_BACKENDS=lvmdriver-1
+    CINDER_DEFAULT_VOLUME_TYPE=lvmdriver-1
+    CINDER_SECURE_DELETE=False
+    TEMPEST_ENABLED_BACKENDS=lvmdriver-1
+    TEMPEST_VOLUME_DRIVER=lvmdriver-1
+    TEMPEST_VOLUME_VENDOR="Open Source"
+    TEMPEST_STORAGE_PROTOCOL=iSCSI
+    LIBVIRT_FIREWALL_DRIVER=nova.virt.firewall.NoopFirewallDriver
+    VIRT_DRIVER=libvirt
+    ACTIVE_TIMEOUT=120
+    BOOT_TIMEOUT=120
+    ASSOCIATE_TIMEOUT=120
+    TERMINATE_TIMEOUT=120
+
+
+    [[post-config|$CINDER_CONF]]
+    [DEFAULT]
+    [lvmdriver-1]
+    volume_driver=cinder.volume.drivers.lvm.LVMISCSIDriver
+    volume_group=stack-volumes-1
+    volume_backend_name=lvmdriver-1``
+

tempest_tests/config.py

@@ -0,0 +1,26 @@
+# Copyright 2016
+# 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
+
+service_available_group = cfg.OptGroup(name="service_available",
+                                       title="Available OpenStack Services")
+
+
+ServiceAvailableGroup = [
+    cfg.BoolOpt("cinder",
+                default=True,
+                help="Whether or not cinder is expected to be available"),
+]

tempest_tests/plugin.py

@@ -0,0 +1,39 @@
+# Copyright 2015
+# 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
+
+from tempest import config
+from tempest.test_discover import plugins
+
+from tempest_tests import config as project_config
+
+
+class CinderTempestPlugin(plugins.TempestPlugin):
+    def load_tests(self):
+        base_path = os.path.split(os.path.dirname(
+            os.path.abspath(__file__)))[0]
+        test_dir = "tempest_tests/tests"
+        full_test_dir = os.path.join(base_path, test_dir)
+        return full_test_dir, base_path
+
+    def register_opts(self, conf):
+        config.register_opt_group(
+            conf, project_config.service_available_group,
+            project_config.ServiceAvailableGroup)
+
+    def get_opt_lists(self):
+        pass

tempest_tests/tests/api/volume/test_volume_placeholder.py

@@ -0,0 +1,28 @@
+# Copyright 2015
+# 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 tempest import config
+from tempest.tests import base
+
+CONF = config.CONF
+
+
+class CinderPlaceholderTest(base.TestCase):
+    """Placeholder test for adding in-tree Cinder tempest tests."""
+    # TODO(smcginnis) Remove once real tests are added
+
+    def test_placeholder(self):
+        expected = 'This test is temporary and should be removed!'
+        self.assertEqual(expected, expected)