Refactored Neutron tempest plugin directory structure

* switch from neutron.tests.tempest to neutron_tempest_plugin
* Cleaned up README.rst and setup.cfg
* Use neutron_tempest_plugin as a tempest plugin package
* Fixed gitreview
* Keeping flake8 Ignores in tox.ini as tempest plugin is
  imported from neutron codebase.

Change-Id: I42d389836e72813fdeebc797a577f4a8ac2ee603
diff --git a/neutron_tempest_plugin/api/clients.py b/neutron_tempest_plugin/api/clients.py
new file mode 100644
index 0000000..272f5be
--- /dev/null
+++ b/neutron_tempest_plugin/api/clients.py
@@ -0,0 +1,91 @@
+# Copyright 2012 OpenStack Foundation
+# 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.lib.services.compute import keypairs_client
+from tempest.lib.services.compute import servers_client
+from tempest.lib.services.identity.v2 import tenants_client
+from tempest.lib.services.identity.v3 import projects_client
+from tempest import manager
+
+from neutron_tempest_plugin import config
+from neutron_tempest_plugin.services.network.json import network_client
+
+CONF = config.CONF
+
+
+class Manager(manager.Manager):
+    """
+    Top level manager for OpenStack tempest clients
+    """
+    default_params = {
+        'disable_ssl_certificate_validation':
+            CONF.identity.disable_ssl_certificate_validation,
+        'ca_certs': CONF.identity.ca_certificates_file,
+        'trace_requests': CONF.debug.trace_requests
+    }
+
+    # NOTE: Tempest uses timeout values of compute API if project specific
+    # timeout values don't exist.
+    default_params_with_timeout_values = {
+        'build_interval': CONF.compute.build_interval,
+        'build_timeout': CONF.compute.build_timeout
+    }
+    default_params_with_timeout_values.update(default_params)
+
+    def __init__(self, credentials=None, service=None):
+        super(Manager, self).__init__(credentials=credentials)
+
+        self._set_identity_clients()
+
+        self.network_client = network_client.NetworkClientJSON(
+            self.auth_provider,
+            CONF.network.catalog_type,
+            CONF.network.region or CONF.identity.region,
+            endpoint_type=CONF.network.endpoint_type,
+            build_interval=CONF.network.build_interval,
+            build_timeout=CONF.network.build_timeout,
+            **self.default_params)
+
+        params = {
+            'service': CONF.compute.catalog_type,
+            'region': CONF.compute.region or CONF.identity.region,
+            'endpoint_type': CONF.compute.endpoint_type,
+            'build_interval': CONF.compute.build_interval,
+            'build_timeout': CONF.compute.build_timeout
+        }
+        params.update(self.default_params)
+
+        self.servers_client = servers_client.ServersClient(
+            self.auth_provider,
+            enable_instance_password=CONF.compute_feature_enabled
+                .enable_instance_password,
+            **params)
+        self.keypairs_client = keypairs_client.KeyPairsClient(
+            self.auth_provider, **params)
+
+    def _set_identity_clients(self):
+        params = {
+            'service': CONF.identity.catalog_type,
+            'region': CONF.identity.region
+        }
+        params.update(self.default_params_with_timeout_values)
+        params_v2_admin = params.copy()
+        params_v2_admin['endpoint_type'] = CONF.identity.v2_admin_endpoint_type
+        # Client uses admin endpoint type of Keystone API v2
+        self.tenants_client = tenants_client.TenantsClient(self.auth_provider,
+                                                           **params_v2_admin)
+        # Client uses admin endpoint type of Keystone API v3
+        self.projects_client = projects_client.ProjectsClient(
+            self.auth_provider, **params_v2_admin)