treewide: add license header and enable haslicense linter
Change-Id: I873a8d4082d75e8f813d8a726a41187eea7a065e
Reviewed-on: https://review.monogon.dev/c/monogon/+/3825
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/metropolis/node/core/rpc/client.go b/metropolis/node/core/rpc/client.go
index 72122b7..f364c5a 100644
--- a/metropolis/node/core/rpc/client.go
+++ b/metropolis/node/core/rpc/client.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/methodinfo.go b/metropolis/node/core/rpc/methodinfo.go
index 0a597fa..e294feb 100644
--- a/metropolis/node/core/rpc/methodinfo.go
+++ b/metropolis/node/core/rpc/methodinfo.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/peerinfo.go b/metropolis/node/core/rpc/peerinfo.go
index 55f949c..775623c 100644
--- a/metropolis/node/core/rpc/peerinfo.go
+++ b/metropolis/node/core/rpc/peerinfo.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/resolver/processor.go b/metropolis/node/core/rpc/resolver/processor.go
index ad29021..fc581a2 100644
--- a/metropolis/node/core/rpc/resolver/processor.go
+++ b/metropolis/node/core/rpc/resolver/processor.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package resolver
import (
diff --git a/metropolis/node/core/rpc/resolver/resolver.go b/metropolis/node/core/rpc/resolver/resolver.go
index c06911b..51b9cdf 100644
--- a/metropolis/node/core/rpc/resolver/resolver.go
+++ b/metropolis/node/core/rpc/resolver/resolver.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package resolver
import (
diff --git a/metropolis/node/core/rpc/resolver/resolver_test.go b/metropolis/node/core/rpc/resolver/resolver_test.go
index 075fd09..72da280 100644
--- a/metropolis/node/core/rpc/resolver/resolver_test.go
+++ b/metropolis/node/core/rpc/resolver/resolver_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package resolver
import (
diff --git a/metropolis/node/core/rpc/resolver/watcher.go b/metropolis/node/core/rpc/resolver/watcher.go
index c9fe47e..cb8f318 100644
--- a/metropolis/node/core/rpc/resolver/watcher.go
+++ b/metropolis/node/core/rpc/resolver/watcher.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package resolver
import (
diff --git a/metropolis/node/core/rpc/server.go b/metropolis/node/core/rpc/server.go
index 3522822..ed8471a 100644
--- a/metropolis/node/core/rpc/server.go
+++ b/metropolis/node/core/rpc/server.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/server_authentication.go b/metropolis/node/core/rpc/server_authentication.go
index 37c8fad..03d5a96 100644
--- a/metropolis/node/core/rpc/server_authentication.go
+++ b/metropolis/node/core/rpc/server_authentication.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/server_authentication_test.go b/metropolis/node/core/rpc/server_authentication_test.go
index 8a869bd..a30ee86 100644
--- a/metropolis/node/core/rpc/server_authentication_test.go
+++ b/metropolis/node/core/rpc/server_authentication_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/trace.go b/metropolis/node/core/rpc/trace.go
index f27a311..9f3c22d 100644
--- a/metropolis/node/core/rpc/trace.go
+++ b/metropolis/node/core/rpc/trace.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (
diff --git a/metropolis/node/core/rpc/trace_test.go b/metropolis/node/core/rpc/trace_test.go
index 9bed935..50ba35e 100644
--- a/metropolis/node/core/rpc/trace_test.go
+++ b/metropolis/node/core/rpc/trace_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
package rpc
import (