diff --git a/.dockerignore b/.dockerignore
index 243f81a508..6c32b59d59 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 # More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
 # Ignore all files which are not go type
 !**/*.go
diff --git a/.github/workflows/sanity.yml b/.github/workflows/sanity.yml
index 3ed124a98b..ae71712c53 100644
--- a/.github/workflows/sanity.yml
+++ b/.github/workflows/sanity.yml
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 ---
 # yamllint disable rule:line-length
 
diff --git a/.gitignore b/.gitignore
index f1274dbab9..79fee131e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
 
 # Binaries for programs and plugins
 *.exe
diff --git a/Dockerfile b/Dockerfile
index 91321c06ac..088d65c0c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 # Build the manager binary
 FROM golang:1.18 as builder
 
diff --git a/Makefile b/Makefile
index a469864d2a..6140a20994 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 # Enable GOPROXY. This speeds up a lot of vendoring operations.
 export GOPROXY=https://proxy.golang.org
 
diff --git a/PROJECT b/PROJECT
index aa93413609..244ca9d70e 100644
--- a/PROJECT
+++ b/PROJECT
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 domain: openshift.io
 layout:
 - go.kubebuilder.io/v3
diff --git a/go.mod b/go.mod
index 80ab86cdb9..7c04fa0217 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: The RamenDR authors
+// SPDX-License-Identifier: Apache-2.0
+
 module github.com/ramendr/ramen
 
 go 1.18
diff --git a/go.sum.license b/go.sum.license
new file mode 100644
index 0000000000..7d48ce5575
--- /dev/null
+++ b/go.sum.license
@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: The RamenDR authors
+SPDX-License-Identifier: Apache-2.0
diff --git a/hack/mdl-style.rb b/hack/mdl-style.rb
index 1a9954dce4..e969d02650 100644
--- a/hack/mdl-style.rb
+++ b/hack/mdl-style.rb
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 all
 
 #Refer below url for more information about the markdown rules.
diff --git a/hack/yamlconfig.yaml b/hack/yamlconfig.yaml
index baae962c82..e765a26375 100644
--- a/hack/yamlconfig.yaml
+++ b/hack/yamlconfig.yaml
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
 ---
 # https://yamllint.readthedocs.io/en/stable/configuration.html