enable backups for rackserv

sys/machines/rackserv/backups.nix

@@ -0,0 +1,18 @@
+{config, ...}: {
+  services.restic.backups.rackserv = {
+    initialize = true;
+    inhibitsSleep = true;
+    repository = "rest:http://nixdesk:8000/rackserv";
+    passwordFile = config.sops.secrets.restic-password.path;
+    timerConfig = {
+      OnCalendar = "18:00";
+      Persistent = true;
+      RandomizedDelaySec = "1h";
+    };
+    pruneOpts = [
+      "--keep-daily 7"
+      "--keep-weekly 5"
+      "--keep-monthly 3"
+    ];
+  };
+}

sys/machines/rackserv/default.nix

@@ -11,6 +11,7 @@
       ./disk-config.nix
       ./fail2ban.nix
       ./wireguard-server.nix
+      ./backups.nix
     ]
     ++ (map (x: systemProfiles + x) [
       /secrets/default.nix