diff --git a/clowder/clowder_test.go b/clowder/clowder_test.go
index b4c226c..c68d619 100644
--- a/clowder/clowder_test.go
+++ b/clowder/clowder_test.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 clowder_test
 
 import (
diff --git a/clowder/export_test.go b/clowder/export_test.go
index 6dd3c81..8556f2d 100644
--- a/clowder/export_test.go
+++ b/clowder/export_test.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 clowder
 
 var (
diff --git a/clowder/kafka.go b/clowder/kafka.go
index 35b63d0..8a2bfe6 100644
--- a/clowder/kafka.go
+++ b/clowder/kafka.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 clowder
 
 import (
@@ -13,6 +27,8 @@ const (
 	noTopicMapping = "warning: no kafka mapping found for topic %s"
 )
 
+// UseBrokerConfig tries to replace parts of the BrokerConfiguration with the values
+// loaded by Clowder
 func UseBrokerConfig(brokerCfg *kafka.BrokerConfiguration, loadedConfig *api.AppConfig) {
 	// make sure broker(s) are configured in Clowder
 	if loadedConfig.Kafka != nil && len(loadedConfig.Kafka.Brokers) > 0 {
@@ -46,6 +62,9 @@ func UseBrokerConfig(brokerCfg *kafka.BrokerConfiguration, loadedConfig *api.App
 		fmt.Println(noBrokerConfig)
 	}
 }
+
+// UseClowderTopics tries to replace the configured topic with the corresponding
+// topic loaded by Clowder
 func UseClowderTopics(configuration *kafka.BrokerConfiguration, kafkaTopics map[string]api.TopicConfig) {
 	// Get the correct topic name from clowder mapping if available
 	if clowderTopic, ok := kafkaTopics[configuration.Topic]; ok {
diff --git a/clowder/storage.go b/clowder/storage.go
index 2c543cc..ec35738 100644
--- a/clowder/storage.go
+++ b/clowder/storage.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 clowder
 
 import (
@@ -5,6 +19,8 @@ import (
 	api "github.com/redhatinsights/app-common-go/pkg/api/v1"
 )
 
+// UseDBConfig tries to replace the StorageConfiguration parameters with the
+// values loaded by Clowder
 func UseDBConfig(storageCfg *postgres.StorageConfiguration, loadedConfig *api.AppConfig) {
 	storageCfg.PGDBName = loadedConfig.Database.Name
 	storageCfg.PGHost = loadedConfig.Database.Hostname
diff --git a/kafka/scram_client.go b/kafka/scram_client.go
index b135069..dc3755f 100644
--- a/kafka/scram_client.go
+++ b/kafka/scram_client.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 "github.com/xdg/scram"
diff --git a/postgres/config.go b/postgres/config.go
index 5dbf956..14bfd3d 100644
--- a/postgres/config.go
+++ b/postgres/config.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Red Hat, Inc
+//
+// 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 postgres
 
 // StorageConfiguration represents common configuration of data storage