Parameterise restic

machines/nunotaba/configuration.nix

@@ -6,7 +6,6 @@
       ./hardware-configuration.nix
       ../../modules/cpu/intel.nix
       ../../modules/gpu/intel.nix
-      ../../modules/restic.nix
       ../../modules/ssd.nix
       ../../modules/libvirt.nix
       ../../modules
@@ -16,6 +15,7 @@
 
   sbruder = {
     gui = true;
+    restic.enable = true;
   };
 
   boot.loader.grub.device = "/dev/disk/by-id/ata-INTEL_SSDSC2KB480G7_PHYS749202D6480BGN";

machines/sayuri/configuration.nix

@@ -7,7 +7,6 @@
       ../../modules/cpu/intel.nix
       ../../modules/gpu/amd.nix
       ../../modules/libvirt.nix
-      ../../modules/restic.nix
       ../../modules/ssd.nix
       ../../modules
       ../../profiles/dev.nix
@@ -16,6 +15,7 @@
 
   sbruder = {
     gui = true;
+    restic.enable = true;
   };
 
   boot.loader.grub.device = "/dev/disk/by-id/ata-MTFDDAK256TBN-1AR15ABHA_UFZMQ01ZR50NMM";

modules/default.nix

@@ -21,6 +21,7 @@
     ./office.nix
     ./prometheus/node_exporter.nix
     ./pulseaudio.nix
+    ./restic.nix
     ./ssh.nix
     ./sway.nix
     ./tools.nix

modules/restic.nix

@@ -1,5 +1,7 @@
-{ pkgs, config, lib, ... }:
+{ pkgs, config, lib, options, ... }:
 let
+  cfg = config.sbruder.restic;
+
   name = "${config.networking.hostName}-system";
   excludes = [
     # General
@@ -44,6 +46,28 @@ let
   maybePath = path: (lib.optional (builtins.pathExists path) (toString path));
 in
 {
+  options.sbruder.restic = {
+    enable = lib.mkEnableOption "restic";
+    timerConfig =
+      lib.recursiveUpdate
+        (
+          (builtins.elemAt
+            (builtins.elemAt
+              options.services.restic.backups.type.getSubModules
+              0
+            ).imports
+            0)
+            { name = ""; }
+        ).options.timerConfig
+        {
+          default = {
+            OnCalendar = "20:00";
+            RandomizedDelaySec = "2h";
+          };
+        };
+  };
+
+  config = lib.mkIf cfg.enable {
     services.restic.backups."${name}" = {
       passwordFile = toString (../secrets/restic_password);
       s3CredentialsFile = toString ../secrets/s3_credentials;
@@ -61,10 +85,7 @@ in
         "--exclude-file=${excludesFile}"
         "--verbose"
       ];
-    timerConfig = {
+      timerConfig = cfg.timerConfig;
-      OnCalendar = "20:00";
-      RandomizedDelaySec = "2h";
-    };
     };
 
     systemd.services."restic-backups-${name}".serviceConfig = {
@@ -72,4 +93,5 @@ in
       "IOSchedulingClass" = "best-effort";
       "IOSchedulingPriority" = 7;
     };
+  };
 }