Enable tempest tests for sahara

Change-Id: I1bde4186335cb6638d2c90f5eeee1cf7944e1415

tests/roles/bootstrap-host/tasks/prepare_aio_config.yml

@@ -191,6 +191,9 @@
     - src: user_variables_hardening.yml.j2
       dest: user_variables_hardening.yml
       condition: "{{ 'hardening' in bootstrap_host_scenarios_expanded }}"
+    - src: user_variables_sahara.yml.j2
+      dest: user_variables_sahara.yml
+      condition: "{{ 'sahara' in bootstrap_host_scenarios_expanded }}"
 
 - name: Copy modified cinder-volume env.d file for ceph scenario
   copy:

tests/roles/bootstrap-host/templates/user_variables_sahara.yml.j2

@@ -0,0 +1,14 @@
+# 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.
+
+tempest_test_includelist:
+  - sahara_tempest_plugin.tests.api