Add post_test_hook script that will run tests on the gate

Added post_test_hook.sh script that will run run_tests.sh
script in the Jenkins pythonclient gate.

Partially implements: blueprint mistral-making-dsvm-gates-voting

Change-Id: I87c8b80e30720515e2282b9ed6b54c56e30a283f

functionaltests/post_test_hook.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# 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.
+
+# This script is executed inside post_test_hook function in devstack gate.
+
+RETVAL=0
+
+sudo chmod -R a+rw /opt/stack/new/
+cd /opt/stack/new/python-mistralclient
+
+echo "Running CLI python-mistralclient tests"
+./functionaltests/run_tests.sh
+RETVAL=$?
+
+exit $RETVAL