Enable plugin list feature and add gate job to merge patches

This commit enables to run `tempest list-plugins` and `tox -e py37`
successfully. This makes the tempest plugin sanity job pass, too. And
this commit also fixes README.rst tiny errors to pass the gate check.

Also add the gate job, this can make merge patches.

Co-Authored-By: zhurong <aaronzhu1121@gmail.com>
Change-Id: I116c662f1a6f5489fe06841b6a3c7a7ecccfc848

.stestr.conf

@@ -1,3 +1,3 @@
 [DEFAULT]
-test_path=./cyborg-tempest-plugin/tests
+test_path=./cyborg_tempest_plugin/tests
 top_dir=./

.zuul.yaml

@@ -0,0 +1,6 @@
+- project:
+    templates:
+      - check-requirements
+      - tempest-plugin-jobs
+    gate:
+      queue: cyborg

README.rst

@@ -11,7 +11,10 @@ Note that this is a hard requirement.
 
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/cyborg-tempest-plugin/latest
-* Source: https://git.openstack.org/cgit/cyborg/cyborg-tempest-plugin* Bugs: https://storyboard.openstack.org/#!/project/968Features
+* Source: https://git.openstack.org/cgit/cyborg/cyborg-tempest-plugin
+* Bugs: https://storyboard.openstack.org/#!/project/968
+
+Features
 --------
 
 * TODO

cyborg_tempest_plugin/config.py

@@ -13,3 +13,4 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+pass

cyborg_tempest_plugin/plugin.py

@@ -16,17 +16,14 @@
 
 import os
 
-from tempest import config
 from tempest.test_discover import plugins
 
-from cyborg-tempest-plugin_tempest_plugin import config as project_config
-
 
 class CyborgTempestPlugin(plugins.TempestPlugin):
     def load_tests(self):
         base_path = os.path.split(os.path.dirname(
             os.path.abspath(__file__)))[0]
-        test_dir = "cyborg-tempest-plugin_tempest_plugin/tests"
+        test_dir = "cyborg_tempest_plugin/tests"
         full_test_dir = os.path.join(base_path, test_dir)
         return full_test_dir, base_path
 

cyborg_tempest_plugin/tests/test_dummy.py

@@ -0,0 +1,22 @@
+# Copyright 2018 Rackspace US Inc.  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 test
+
+
+class DummyTest(test.BaseTestCase):
+    """Dummy tests."""
+
+    def test_dummy(self):
+        pass

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = cyborg-tempest-plugin
-summary = OpenStack Acceleration Tempest Plugin 
+summary = OpenStack Acceleration Tempest Plugin
 description-file =
     README.rst
 author = OpenStack
@@ -28,7 +28,7 @@ packages =
 
 [entry_points]
 tempest.test_plugins =
-    plugin_name = cyborg_tempest_plugin.plugin:CyborgTempestPlugin
+    cyborg_tempest_plugin = cyborg_tempest_plugin.plugin:CyborgTempestPlugin
 
 [global]
 setup-hooks =

tox.ini

@@ -5,7 +5,7 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt} {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning