diff --git a/installers/charm/ro/config.yaml b/installers/charm/ro/config.yaml
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+# Copyright 2020 Canonical Ltd.
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+options:
+  enable_ng_ro:
+    description: Enable NG-RO
+    type: boolean
+    default: true
+  database_commonkey:
+    description: Database COMMON KEY
+    type: string
+    default: osm
+  log_level:
+    description: "Log Level"
+    type: string
+    default: "INFO"
+  vim_database:
+    type: string
+    description: "The database name."
+    default: "mano_vim_db"
+  ro_database:
+    type: string
+    description: "The database name."
+    default: "mano_db"
+  openmano_tenant:
+    type: string
+    description: "Openmano Tenant"
+    default: "osm"