From a996fe849f669e5d1cafed18f299ed6ed4abec84 Mon Sep 17 00:00:00 2001
From: gnidorah <gnidorah@users.noreply.github.com>
Date: Tue, 30 May 2017 16:39:27 +0300
Subject: fstrim: Add service

---
 nixos/modules/module-list.nix          |  1 +
 nixos/modules/services/misc/fstrim.nix | 45 ++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 nixos/modules/services/misc/fstrim.nix

(limited to 'nixos/modules')

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 7afcb9051bd7..cae081aa73f0 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -283,6 +283,7 @@
   ./services/misc/etcd.nix
   ./services/misc/felix.nix
   ./services/misc/folding-at-home.nix
+  ./services/misc/fstrim.nix
   ./services/misc/gammu-smsd.nix
   ./services/misc/geoip-updater.nix
   #./services/misc/gitit.nix
diff --git a/nixos/modules/services/misc/fstrim.nix b/nixos/modules/services/misc/fstrim.nix
new file mode 100644
index 000000000000..e89366cbafed
--- /dev/null
+++ b/nixos/modules/services/misc/fstrim.nix
@@ -0,0 +1,45 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.fstrim;
+
+in {
+
+  options = {
+
+    services.fstrim = {
+      enable = mkEnableOption "periodic SSD TRIM of mounted partitions in background";
+
+      interval = mkOption {
+        type = types.string;
+        default = "weekly";
+        description = ''
+          How often we run fstrim. For most desktop and server systems
+          a sufficient trimming frequency is once a week.
+
+          The format is described in
+          <citerefentry><refentrytitle>systemd.time</refentrytitle>
+          <manvolnum>7</manvolnum></citerefentry>.
+        '';
+      };
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd.packages = [ pkgs.utillinux ];
+
+    systemd.timers.fstrim = {
+      timerConfig = {
+        OnCalendar = cfg.interval;
+      };
+      wantedBy = [ "timers.target" ];
+    };
+
+  };
+
+}
-- 
cgit 1.4.1