hosts/containers/dhcp: make dhcp server authoritative

Make the dhcp server explicitly authoritative before importing
the configuration from the secrets submodule.

hosts/containers/dhcp/configuration.nix

@@ -31,7 +31,10 @@
   services.dhcpd4 = {
     enable = true;
     interfaces = [ "eth0" ];
-    extraConfig = builtins.readFile ../../../secrets/hosts/dhcp/config;
+    extraConfig = ''
+      authoritative;
+
+    '' + builtins.readFile ../../../secrets/hosts/dhcp/config;
   };
 
   # This value determines the NixOS release with which your system is to be

secrets

@@ -1 +1 @@
-Subproject commit 3ae294f84afa3a399a73fedf60418009cc330598
+Subproject commit bd190b8b1f925a7b781eea72e60c3a10fae83bcc