diff --git a/_samples/advanced_index_actions.go b/_samples/advanced_index_actions.go
index aff9010aa..4bed616e6 100644
--- a/_samples/advanced_index_actions.go
+++ b/_samples/advanced_index_actions.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/bulk.go b/_samples/bulk.go
index 77763f6cd..251508ad1 100644
--- a/_samples/bulk.go
+++ b/_samples/bulk.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/data_stream.go b/_samples/data_stream.go
index 20b4acd74..ad1b96ad1 100644
--- a/_samples/data_stream.go
+++ b/_samples/data_stream.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/document_lifecycle.go b/_samples/document_lifecycle.go
index 2b88b7b39..374d7cb3a 100644
--- a/_samples/document_lifecycle.go
+++ b/_samples/document_lifecycle.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/index_lifecycle.go b/_samples/index_lifecycle.go
index f98b1be1b..d49617804 100644
--- a/_samples/index_lifecycle.go
+++ b/_samples/index_lifecycle.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/json.go b/_samples/json.go
index 4b785a1e6..79625ba7e 100644
--- a/_samples/json.go
+++ b/_samples/json.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (
diff --git a/_samples/search.go b/_samples/search.go
index b12e288d7..7235dc2ad 100644
--- a/_samples/search.go
+++ b/_samples/search.go
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// The OpenSearch Contributors require contributions made to
+// this file be licensed under the Apache-2.0 license or a
+// compatible open source license.
 package main
 
 import (