Add some systemd profiles.

apparmor.d/groups/systemd/hostnamectl

@@ -0,0 +1,20 @@
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2021 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+abi <abi/3.0>,
+
+include <tunables/global>
+
+@{exec_path} = /{usr/,}bin/hostnamectl
+profile hostnamectl @{exec_path} {
+  include <abstractions/base>
+
+  @{exec_path} mr,
+
+  /etc/machine-id r,
+
+  @{PROC}/sys/kernel/random/boot_id r,
+
+  include if exists <local/hostnamectl>
+}