[CORD-2378] Generating docker-compose.yml for services and executing them

Change-Id: Ic83d1701ee8537c32f761125cc51c532d18487e5
diff --git a/roles/xos-services-config/defaults/main.yml b/roles/xos-services-config/defaults/main.yml
new file mode 100644
index 0000000..8b6eff7
--- /dev/null
+++ b/roles/xos-services-config/defaults/main.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.
+
+build_cord_dir: '{{ playbook_dir ~ ''/../..'' }}'
+head_cord_profile_dir: '/opt/cord_profile'
+head_credentials_dir: '/opt/credentials'
+pull_docker_registry: ''
+pull_docker_tag: candidate
+xos_dynamic_services: []
+xos_docker_networks:
+- xos