diff --git a/integration/remote/doc.go b/integration/remote/doc.go
index 9571cbc59..5b8260831 100644
--- a/integration/remote/doc.go
+++ b/integration/remote/doc.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/integration/remote/remote_image.go b/integration/remote/remote_image.go
index 7e68b0fbb..32d26342a 100644
--- a/integration/remote/remote_image.go
+++ b/integration/remote/remote_image.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/integration/remote/remote_runtime.go b/integration/remote/remote_runtime.go
index b8a2c28a4..9e1842c83 100644
--- a/integration/remote/remote_runtime.go
+++ b/integration/remote/remote_runtime.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/integration/remote/util/util_unix.go b/integration/remote/util/util_unix.go
index b8097ff57..cc3f85814 100644
--- a/integration/remote/util/util_unix.go
+++ b/integration/remote/util/util_unix.go
@@ -1,5 +1,21 @@
 // +build freebsd linux darwin
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/remote/util/util_unsupported.go b/integration/remote/util/util_unsupported.go
index dbf86a5a4..81f412172 100644
--- a/integration/remote/util/util_unsupported.go
+++ b/integration/remote/util/util_unsupported.go
@@ -1,5 +1,21 @@
 // +build !freebsd,!linux,!windows,!darwin
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/remote/util/util_windows.go b/integration/remote/util/util_windows.go
index bc62eaa36..979ebf2fc 100644
--- a/integration/remote/util/util_windows.go
+++ b/integration/remote/util/util_windows.go
@@ -1,5 +1,21 @@
 // +build windows
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/remote/utils.go b/integration/remote/utils.go
index ca2c165d8..a1390c57b 100644
--- a/integration/remote/utils.go
+++ b/integration/remote/utils.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/integration/util/boottime_util_darwin.go b/integration/util/boottime_util_darwin.go
index 09d3b8865..74abe9fb9 100644
--- a/integration/util/boottime_util_darwin.go
+++ b/integration/util/boottime_util_darwin.go
@@ -1,5 +1,21 @@
 // +build darwin
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2018 The Kubernetes Authors.
 
diff --git a/integration/util/boottime_util_linux.go b/integration/util/boottime_util_linux.go
index f00e7c06b..2699ae5fe 100644
--- a/integration/util/boottime_util_linux.go
+++ b/integration/util/boottime_util_linux.go
@@ -1,5 +1,21 @@
 // +build freebsd linux
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2018 The Kubernetes Authors.
 
diff --git a/integration/util/doc.go b/integration/util/doc.go
index 0f119d2f5..307fa03c2 100644
--- a/integration/util/doc.go
+++ b/integration/util/doc.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/integration/util/util.go b/integration/util/util.go
index ba52058a1..334cb8b24 100644
--- a/integration/util/util.go
+++ b/integration/util/util.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/util/util_unix.go b/integration/util/util_unix.go
index 0350e4387..713df4b63 100644
--- a/integration/util/util_unix.go
+++ b/integration/util/util_unix.go
@@ -1,5 +1,21 @@
 // +build freebsd linux darwin
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/util/util_unsupported.go b/integration/util/util_unsupported.go
index dbf86a5a4..81f412172 100644
--- a/integration/util/util_unsupported.go
+++ b/integration/util/util_unsupported.go
@@ -1,5 +1,21 @@
 // +build !freebsd,!linux,!windows,!darwin
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/integration/util/util_windows.go b/integration/util/util_windows.go
index b0aec540e..850a50f81 100644
--- a/integration/util/util_windows.go
+++ b/integration/util/util_windows.go
@@ -1,5 +1,21 @@
 // +build windows
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2017 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/doc.go b/pkg/server/bandwidth/doc.go
index 289b17fe2..1fd55229d 100644
--- a/pkg/server/bandwidth/doc.go
+++ b/pkg/server/bandwidth/doc.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/fake_shaper.go b/pkg/server/bandwidth/fake_shaper.go
index 78577185d..e987ceca6 100644
--- a/pkg/server/bandwidth/fake_shaper.go
+++ b/pkg/server/bandwidth/fake_shaper.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/interfaces.go b/pkg/server/bandwidth/interfaces.go
index ec29d5d10..9eb4bfb60 100644
--- a/pkg/server/bandwidth/interfaces.go
+++ b/pkg/server/bandwidth/interfaces.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/linux.go b/pkg/server/bandwidth/linux.go
index c105fdea5..e8d710825 100644
--- a/pkg/server/bandwidth/linux.go
+++ b/pkg/server/bandwidth/linux.go
@@ -1,5 +1,21 @@
 // +build linux
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/unsupported.go b/pkg/server/bandwidth/unsupported.go
index 929f5e058..12c5ad83b 100644
--- a/pkg/server/bandwidth/unsupported.go
+++ b/pkg/server/bandwidth/unsupported.go
@@ -1,5 +1,21 @@
 // +build !linux
 
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/server/bandwidth/utils.go b/pkg/server/bandwidth/utils.go
index b29825bdf..f90718b6b 100644
--- a/pkg/server/bandwidth/utils.go
+++ b/pkg/server/bandwidth/utils.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/streaming/errors.go b/pkg/streaming/errors.go
index 5cbe9d505..874064054 100644
--- a/pkg/streaming/errors.go
+++ b/pkg/streaming/errors.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/portforward/constants.go b/pkg/streaming/portforward/constants.go
index 62b14f205..217a0b114 100644
--- a/pkg/streaming/portforward/constants.go
+++ b/pkg/streaming/portforward/constants.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2015 The Kubernetes Authors.
 
diff --git a/pkg/streaming/portforward/httpstream.go b/pkg/streaming/portforward/httpstream.go
index 419113054..4054d5619 100644
--- a/pkg/streaming/portforward/httpstream.go
+++ b/pkg/streaming/portforward/httpstream.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/portforward/portforward.go b/pkg/streaming/portforward/portforward.go
index 905fc8a78..89a39ea66 100644
--- a/pkg/streaming/portforward/portforward.go
+++ b/pkg/streaming/portforward/portforward.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/portforward/websocket.go b/pkg/streaming/portforward/websocket.go
index 8b5428cb6..1b1c0151a 100644
--- a/pkg/streaming/portforward/websocket.go
+++ b/pkg/streaming/portforward/websocket.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/remotecommand/attach.go b/pkg/streaming/remotecommand/attach.go
index e266f34fe..2b127bdf9 100644
--- a/pkg/streaming/remotecommand/attach.go
+++ b/pkg/streaming/remotecommand/attach.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/remotecommand/doc.go b/pkg/streaming/remotecommand/doc.go
index bf0d010b9..6034cdc8e 100644
--- a/pkg/streaming/remotecommand/doc.go
+++ b/pkg/streaming/remotecommand/doc.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/remotecommand/exec.go b/pkg/streaming/remotecommand/exec.go
index 8eaf82a6f..5111521ba 100644
--- a/pkg/streaming/remotecommand/exec.go
+++ b/pkg/streaming/remotecommand/exec.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/remotecommand/httpstream.go b/pkg/streaming/remotecommand/httpstream.go
index 9be6c4345..0417a1a9e 100644
--- a/pkg/streaming/remotecommand/httpstream.go
+++ b/pkg/streaming/remotecommand/httpstream.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/remotecommand/websocket.go b/pkg/streaming/remotecommand/websocket.go
index 4a6be372d..99c0af7c3 100644
--- a/pkg/streaming/remotecommand/websocket.go
+++ b/pkg/streaming/remotecommand/websocket.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/request_cache.go b/pkg/streaming/request_cache.go
index 32f9bf58f..36d6921f6 100644
--- a/pkg/streaming/request_cache.go
+++ b/pkg/streaming/request_cache.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
diff --git a/pkg/streaming/server.go b/pkg/streaming/server.go
index 8cdb0fda5..589c9a8ca 100644
--- a/pkg/streaming/server.go
+++ b/pkg/streaming/server.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd 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.
+*/
+
 /*
 Copyright 2016 The Kubernetes Authors.