CORD-2858 adding xos-rest-api-test playbook

Change-Id: Ibff445f86e9d921e73a473e76794ac85c811b2dc
diff --git a/xos-api-test-playbook.yml b/xos-api-test-playbook.yml
new file mode 100644
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+++ b/xos-api-test-playbook.yml
@@ -0,0 +1,22 @@
+---
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+# xos-api-test-playbook.yml
+
+- name: Execute api tests
+  hosts: all
+  roles:
+   - xos-rest-api-test
+