1 files changed, 25 insertions, 0 deletions
diff --git a/ops/modules/btrfs-auto-scrub.nix b/ops/modules/btrfs-auto-scrub.nix
new file mode 100644
index 0000000000..748bb75c5f
--- /dev/null
+++ b/ops/modules/btrfs-auto-scrub.nix
@@ -0,0 +1,25 @@
+# Automatically performs a scrub on all btrfs filesystems configured in
+# `config.fileSystems` on a daily schedule (by default). Activated by importing.
+{ config, lib, ... }:
+
+{
+  config = {
+    services = {
+      btrfs.autoScrub = {
+        enable = true;
+        interval = lib.mkDefault "*-*-* 03:30:00";
+        # gather all btrfs fileSystems, extra ones can be added via the NixOS
+        # module merging mechanism, of course.
+        fileSystems = lib.concatLists (
+          lib.mapAttrsToList
+            (
+              _:
+              { fsType, mountPoint, ... }:
+              if fsType == "btrfs" then [ mountPoint ] else [ ]
+            )
+            config.fileSystems
+        );
+      };
+    };
+  };
+}