From 9c37ce946826258711e15cd55ee221fa8fe02256 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Sat, 19 Feb 2022 15:51:23 +0100
Subject: zfssnap: ...
---
hosts/surtr/zfs.nix | 59 ++---------------------------------------------------
1 file changed, 2 insertions(+), 57 deletions(-)
(limited to 'hosts')
diff --git a/hosts/surtr/zfs.nix b/hosts/surtr/zfs.nix
index 3e42ef3e..3a69fd96 100644
--- a/hosts/surtr/zfs.nix
+++ b/hosts/surtr/zfs.nix
@@ -1,32 +1,5 @@
{ pkgs, config, ... }:
-let
- snapshotNames = ["frequent" "hourly" "daily" "monthly" "yearly"];
- snapshotCount = {
- frequent = 24;
- hourly = 24;
- daily = 30;
- monthly = 12;
- yearly = 5;
- };
- snapshotTimerConfig = {
- frequent = { OnCalendar = "*:0/5 UTC"; Persistent = true; };
- hourly = { OnCalendar = "hourly UTC"; Persistent = true; };
- daily = { OnCalendar = "daily UTC"; Persistent = true; };
- monthly = { OnCalendar = "monthly UTC"; Persistent = true; };
- yearly = { OnCalendar = "yearly UTC"; Persistent = true; };
- };
- snapshotDescr = {
- frequent = "few minutes";
- hourly = "hour";
- daily = "day";
- monthly = "month";
- yearly = "year";
- };
-
- zfs = config.boot.zfs.package;
-
- autosnapPackage = pkgs.zfstools.override { inherit zfs; };
-in {
+{
config = {
fileSystems = {
"/nix" =
@@ -69,35 +42,7 @@ in {
};
};
- systemd.services =
- let mkSnapService = snapName: {
- name = "zfs-snapshot-${snapName}";
- value = {
- description = "ZFS auto-snapshot every ${snapshotDescr.${snapName}}";
- after = [ "zfs-import.target" ];
- serviceConfig = {
- Type = "oneshot";
- ExecStart = "${autosnapPackage}/bin/zfs-auto-snapshot -k -p -u ${snapName} ${toString snapshotCount.${snapName}}";
- };
- restartIfChanged = false;
-
- preStart = ''
- ${zfs}/bin/zfs set com.sun:auto-snapshot=true surtr/safe
- '';
- };
- };
- in builtins.listToAttrs (map mkSnapService snapshotNames);
-
- systemd.timers =
- let mkSnapTimer = snapName: {
- name = "zfs-snapshot-${snapName}";
- value = {
- wantedBy = [ "timers.target" ];
- timerConfig = snapshotTimerConfig.${snapName};
- };
- };
- in builtins.listToAttrs (map mkSnapTimer snapshotNames);
-
+ services.zfssnap.enable = true;
services.zfs.trim.enable = false;
services.zfs.autoScrub = {
enable = true;
--
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