diff --git a/kafka/kafka_inter_container_library.go b/kafka/kafka_inter_container_library.go
index 9db57a0..00086e3 100644
--- a/kafka/kafka_inter_container_library.go
+++ b/kafka/kafka_inter_container_library.go
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2018-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.
+ */
 package kafka
 
 import (
diff --git a/kafka/kafka_inter_container_library_test.go b/kafka/kafka_inter_container_library_test.go
index 0fca49a..6a3bb37 100644
--- a/kafka/kafka_inter_container_library_test.go
+++ b/kafka/kafka_inter_container_library_test.go
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2018-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.
+ */
 package kafka
 
 import (
@@ -5,7 +20,6 @@
 	"testing"
 )
 
-
 func TestDefaultKafkaProxy(t *testing.T) {
 	actualResult, error := NewKafkaMessagingProxy()
 	assert.Equal(t, error, nil)
@@ -71,4 +85,3 @@
 	assert.Equal(t, actualResult.TargetInterface, m)
 	assert.Equal(t, actualResult.DefaultTopic.Name, "Adapter")
 }
-
diff --git a/kafka/messaging_interface.go b/kafka/messaging_interface.go
index 3511dc7..20784b5 100644
--- a/kafka/messaging_interface.go
+++ b/kafka/messaging_interface.go
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2018-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.
+ */
 package kafka
 
 import (