diff --git a/tests/charms/layers/simple/actions.yaml b/tests/charms/layers/simple/actions.yaml
index 6cd6f8c..d224b5d 100644
--- a/tests/charms/layers/simple/actions.yaml
+++ b/tests/charms/layers/simple/actions.yaml
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 touch:
     description: "Touch a file on the VNF."
     params:
diff --git a/tests/charms/layers/simple/config.yaml b/tests/charms/layers/simple/config.yaml
index 51f2ce4..8bde313 100644
--- a/tests/charms/layers/simple/config.yaml
+++ b/tests/charms/layers/simple/config.yaml
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 options:
   string-option:
     type: string
diff --git a/tests/charms/layers/simple/layer.yaml b/tests/charms/layers/simple/layer.yaml
index 3fed5e2..2ee67bf 100644
--- a/tests/charms/layers/simple/layer.yaml
+++ b/tests/charms/layers/simple/layer.yaml
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 includes: ['layer:basic', 'layer:vnfproxy']
 options:
         basic:
diff --git a/tests/charms/layers/simple/metadata.yaml b/tests/charms/layers/simple/metadata.yaml
index fd80d1a..1cb3de9 100644
--- a/tests/charms/layers/simple/metadata.yaml
+++ b/tests/charms/layers/simple/metadata.yaml
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 name: simple
 summary: A simple VNF proxy charm
 maintainer: Adam Israel <adam.israel@canonical.com>
diff --git a/tests/charms/layers/simple/metrics.yaml b/tests/charms/layers/simple/metrics.yaml
index 6ebb605..e610b99 100644
--- a/tests/charms/layers/simple/metrics.yaml
+++ b/tests/charms/layers/simple/metrics.yaml
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 metrics:
   uptime:
     type: gauge
diff --git a/tests/charms/layers/simple/reactive/simple.py b/tests/charms/layers/simple/reactive/simple.py
index af6644b..6e1300e 100644
--- a/tests/charms/layers/simple/reactive/simple.py
+++ b/tests/charms/layers/simple/reactive/simple.py
@@ -1,3 +1,17 @@
+# Copyright 2019 Canonical Ltd.
+#
+# 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.
+
 from charmhelpers.core.hookenv import (
     action_get,
     action_fail,