diff --git a/cloud/shepherd/manager/control_loop.go b/cloud/shepherd/manager/control_loop.go
index 3e5c832..138b6cb 100644
--- a/cloud/shepherd/manager/control_loop.go
+++ b/cloud/shepherd/manager/control_loop.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/fake_ssh_client.go b/cloud/shepherd/manager/fake_ssh_client.go
index cc8c42a..d932210 100644
--- a/cloud/shepherd/manager/fake_ssh_client.go
+++ b/cloud/shepherd/manager/fake_ssh_client.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/initializer.go b/cloud/shepherd/manager/initializer.go
index 1961fe2..f4495e8 100644
--- a/cloud/shepherd/manager/initializer.go
+++ b/cloud/shepherd/manager/initializer.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/initializer_test.go b/cloud/shepherd/manager/initializer_test.go
index 9545b5f..3c95527 100644
--- a/cloud/shepherd/manager/initializer_test.go
+++ b/cloud/shepherd/manager/initializer_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/manager.go b/cloud/shepherd/manager/manager.go
index 3ae7854..ae8115e 100644
--- a/cloud/shepherd/manager/manager.go
+++ b/cloud/shepherd/manager/manager.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 // Package manager, itself a part of BMaaS project, provides implementation
 // governing Equinix bare metal server lifecycle according to conditions set by
 // Bare Metal Database (BMDB).
diff --git a/cloud/shepherd/manager/provider_test.go b/cloud/shepherd/manager/provider_test.go
index 3f6b139..003fd5e 100644
--- a/cloud/shepherd/manager/provider_test.go
+++ b/cloud/shepherd/manager/provider_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/provisioner.go b/cloud/shepherd/manager/provisioner.go
index e777e23..e13c63e 100644
--- a/cloud/shepherd/manager/provisioner.go
+++ b/cloud/shepherd/manager/provisioner.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/provisioner_test.go b/cloud/shepherd/manager/provisioner_test.go
index aea7717..eba178c 100644
--- a/cloud/shepherd/manager/provisioner_test.go
+++ b/cloud/shepherd/manager/provisioner_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/recoverer.go b/cloud/shepherd/manager/recoverer.go
index a94700a..8925f17 100644
--- a/cloud/shepherd/manager/recoverer.go
+++ b/cloud/shepherd/manager/recoverer.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/ssh_key_signer.go b/cloud/shepherd/manager/ssh_key_signer.go
index 7a8d08a..b28b0b5 100644
--- a/cloud/shepherd/manager/ssh_key_signer.go
+++ b/cloud/shepherd/manager/ssh_key_signer.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (
diff --git a/cloud/shepherd/manager/test_agent/main.go b/cloud/shepherd/manager/test_agent/main.go
index 8f29c30..98daf1b 100644
--- a/cloud/shepherd/manager/test_agent/main.go
+++ b/cloud/shepherd/manager/test_agent/main.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 // test_agent is used by the Equinix Metal Manager test code. Its only role
 // is to ensure successful delivery of the BMaaS agent executable to the test
 // hosts, together with its subsequent execution.
diff --git a/cloud/shepherd/mini/main.go b/cloud/shepherd/mini/main.go
index a5fb799..75a5005 100644
--- a/cloud/shepherd/mini/main.go
+++ b/cloud/shepherd/mini/main.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/mini/provider.go b/cloud/shepherd/mini/provider.go
index eb6fc08..1ee55c4 100644
--- a/cloud/shepherd/mini/provider.go
+++ b/cloud/shepherd/mini/provider.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/mini/ssh.go b/cloud/shepherd/mini/ssh.go
index bf2e996..dceafc4 100644
--- a/cloud/shepherd/mini/ssh.go
+++ b/cloud/shepherd/mini/ssh.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/fakequinix_test.go b/cloud/shepherd/provider/equinix/fakequinix_test.go
index 62892cc..aa0b234 100644
--- a/cloud/shepherd/provider/equinix/fakequinix_test.go
+++ b/cloud/shepherd/provider/equinix/fakequinix_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/initializer_test.go b/cloud/shepherd/provider/equinix/initializer_test.go
index 767ee29..587b70a 100644
--- a/cloud/shepherd/provider/equinix/initializer_test.go
+++ b/cloud/shepherd/provider/equinix/initializer_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/main.go b/cloud/shepherd/provider/equinix/main.go
index b47c454..1322039 100644
--- a/cloud/shepherd/provider/equinix/main.go
+++ b/cloud/shepherd/provider/equinix/main.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/provider.go b/cloud/shepherd/provider/equinix/provider.go
index 1752349..16dedf0 100644
--- a/cloud/shepherd/provider/equinix/provider.go
+++ b/cloud/shepherd/provider/equinix/provider.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/provider_config.go b/cloud/shepherd/provider/equinix/provider_config.go
index b54488f..146b010 100644
--- a/cloud/shepherd/provider/equinix/provider_config.go
+++ b/cloud/shepherd/provider/equinix/provider_config.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/provisioner_test.go b/cloud/shepherd/provider/equinix/provisioner_test.go
index b57546a..6a5b0c6 100644
--- a/cloud/shepherd/provider/equinix/provisioner_test.go
+++ b/cloud/shepherd/provider/equinix/provisioner_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/recoverer_test.go b/cloud/shepherd/provider/equinix/recoverer_test.go
index 109c375..6d1447f 100644
--- a/cloud/shepherd/provider/equinix/recoverer_test.go
+++ b/cloud/shepherd/provider/equinix/recoverer_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/updater.go b/cloud/shepherd/provider/equinix/updater.go
index 15b218b..5b6e089 100644
--- a/cloud/shepherd/provider/equinix/updater.go
+++ b/cloud/shepherd/provider/equinix/updater.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/provider/equinix/updater_test.go b/cloud/shepherd/provider/equinix/updater_test.go
index e400690..ed3da7a 100644
--- a/cloud/shepherd/provider/equinix/updater_test.go
+++ b/cloud/shepherd/provider/equinix/updater_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/shepherd/shepherd.go b/cloud/shepherd/shepherd.go
index 2c2a655..aeaab46 100644
--- a/cloud/shepherd/shepherd.go
+++ b/cloud/shepherd/shepherd.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package shepherd
 
 import (