diff --git a/vars/kolla.yaml b/vars/kolla.yaml
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+---
+# ============LICENSE_START=======================================================
+#  Copyright (C) 2019 The Nordix 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+
+# -------------------------------------------------------------------------------
+# Please note that changing versions of components to anything other than what
+# is pinned in this file might not work as expected so you can attempt that as
+# you wish but it is not officially supported by the Engine as the version bumps
+# are done in a controlled manner and tested in Nordix CI/CD.
+#
+# If you want to try it, you should always check with Nordix Infra and upstream
+# projects to ensure the support for the versions you intend to use are compatible
+# with each other.
+# -------------------------------------------------------------------------------
+
+# -------------------------------------------------------------------------------
+# OpenDev: kolla-ansible and openstack versions
+# -------------------------------------------------------------------------------
+# kolla-ansible for stable/train as of 08.04.2020
+kolla_ansible_version: "{{ lookup('env', 'KOLLA_ANSIBLE_VERSION') | default('779b1caa114a43e63f04aa431caf7524dc3e31a9', true) }}"
+# openstack version that is supported by the pinned kolla-ansibe version
+openstack_version: "{{ lookup('env', 'OPENSTACK_VERSION') | default('train', true) }}"
+
+# vim: set ts=2 sw=2 expandtab: