Fixes to pass license check

Change-Id: If9a17321030490c70d9a8fdd49adfe8b912c6fe7
diff --git a/install/ansible/roles/docker-registry/tasks/main.yml b/install/ansible/roles/docker-registry/tasks/main.yml
index 788401f..0d28596 100644
--- a/install/ansible/roles/docker-registry/tasks/main.yml
+++ b/install/ansible/roles/docker-registry/tasks/main.yml
@@ -1,3 +1,16 @@
+# 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.
 - name: The insecure docker registry is started
   command: docker run --restart=always -d -p 5000:5000 --name registry registry:2
   register: result