diff --git a/cmd/flux/check_test.go b/cmd/flux/check_test.go
index 464200a6..c70d6b09 100644
--- a/cmd/flux/check_test.go
+++ b/cmd/flux/check_test.go
@@ -1,5 +1,21 @@
 // +build e2e
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/create_source_git_test.go b/cmd/flux/create_source_git_test.go
index 5558ff1f..943cbff3 100644
--- a/cmd/flux/create_source_git_test.go
+++ b/cmd/flux/create_source_git_test.go
@@ -1,5 +1,21 @@
 // +build unit
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/helmrelease_test.go b/cmd/flux/helmrelease_test.go
index 56b59778..64f5c164 100644
--- a/cmd/flux/helmrelease_test.go
+++ b/cmd/flux/helmrelease_test.go
@@ -1,5 +1,21 @@
 // +build e2e
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import "testing"
diff --git a/cmd/flux/kustomization_test.go b/cmd/flux/kustomization_test.go
index 275a061d..e997e451 100644
--- a/cmd/flux/kustomization_test.go
+++ b/cmd/flux/kustomization_test.go
@@ -1,5 +1,21 @@
 // +build e2e
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import "testing"
diff --git a/cmd/flux/logs_test.go b/cmd/flux/logs_test.go
index d6821410..213e789f 100644
--- a/cmd/flux/logs_test.go
+++ b/cmd/flux/logs_test.go
@@ -1,5 +1,21 @@
 // +build unit
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/main_e2e_test.go b/cmd/flux/main_e2e_test.go
index 2a7f1e8a..1e2c775e 100644
--- a/cmd/flux/main_e2e_test.go
+++ b/cmd/flux/main_e2e_test.go
@@ -1,5 +1,21 @@
 // +build e2e
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/main_test.go b/cmd/flux/main_test.go
index f8e13165..00ae4951 100644
--- a/cmd/flux/main_test.go
+++ b/cmd/flux/main_test.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/main_unit_test.go b/cmd/flux/main_unit_test.go
index 31de6b24..2b992cce 100644
--- a/cmd/flux/main_unit_test.go
+++ b/cmd/flux/main_unit_test.go
@@ -1,5 +1,21 @@
 // +build unit
 
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/cmd/flux/manifests.embed.go b/cmd/flux/manifests.embed.go
index 3e5142ea..e8229fcb 100644
--- a/cmd/flux/manifests.embed.go
+++ b/cmd/flux/manifests.embed.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 main
 
 import (
diff --git a/internal/utils/apply.go b/internal/utils/apply.go
index bc458863..db90d572 100644
--- a/internal/utils/apply.go
+++ b/internal/utils/apply.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 utils
 
 import (
diff --git a/pkg/log/log.go b/pkg/log/log.go
index 63b99a49..384aa370 100644
--- a/pkg/log/log.go
+++ b/pkg/log/log.go
@@ -13,6 +13,7 @@ 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 log
 
 type Logger interface {
diff --git a/tests/azure/azure_test.go b/tests/azure/azure_test.go
index d29a569e..b264b418 100644
--- a/tests/azure/azure_test.go
+++ b/tests/azure/azure_test.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 test
 
 import (
diff --git a/tests/azure/terraform.go b/tests/azure/terraform.go
index 1667e12c..ee6cd156 100644
--- a/tests/azure/terraform.go
+++ b/tests/azure/terraform.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 test
 
 import (
diff --git a/tests/azure/util_test.go b/tests/azure/util_test.go
index 769d4c4e..2eb76188 100644
--- a/tests/azure/util_test.go
+++ b/tests/azure/util_test.go
@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Flux authors
+
+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 test
 
 import (