Initial layout of Designate tempest plugin

See https://review.openstack.org/283511 for history.

Change-Id: I7733e8786d6b525a7c9a8d4f12add329cd030d9d
Partially-Implements: blueprint designate-tempest-plugin
diff --git a/designate_tempest_plugin/plugin.py b/designate_tempest_plugin/plugin.py
new file mode 100644
index 0000000..20f19c1
--- /dev/null
+++ b/designate_tempest_plugin/plugin.py
@@ -0,0 +1,66 @@
+# Copyright 2016 NEC Corporation.  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 designate_tempest_plugin import config as project_config
+
+
+class DesignateTempestPlugin(plugins.TempestPlugin):
+    """
+    A DesignateTempestPlugin class provides the basic hooks for an external
+    plugin to provide tempest the necessary information to run the plugin.
+    """
+    def load_tests(self):
+        """
+        Method to return the information necessary to load the tests in the
+        plugin.
+
+        :return: a tuple with the first value being the test_dir and the second
+                 being the top_level
+        :return type: tuple
+        """
+        base_path = os.path.split(os.path.dirname(
+            os.path.abspath(__file__)))[0]
+        test_dir = "designate_tempest_plugin/tests"
+        full_test_dir = os.path.join(base_path, test_dir)
+        return full_test_dir, base_path
+
+    def register_opts(self, conf):
+        """
+        Add additional configuration options to tempest.
+
+        This method will be run for the plugin during the register_opts()
+        function in tempest.config
+
+        Parameters:
+        conf (ConfigOpts): The conf object that can be used to register
+        additional options on.
+        """
+        config.register_opt_group(conf, project_config.dns_group,
+                                  project_config.DnsGroup)
+
+    def get_opt_lists(self):
+        """
+        Get a list of options for sample config generation
+
+        Return option_list: A list of tuples with the group name
+                            and options in that group.
+        Return type: list
+        """
+        return [(project_config.dns_group.name,
+                 project_config.DnsGroup)]