config/profiles/mounts/common-zfs.nix

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2023-12-10 06:03:49 +01:00
{ config, pkgs, lib, ... }:
{
# https://openzfs.github.io/openzfs-docs/Getting%20Started/NixOS/index.html
# https://nixos.org/manual/nixos/stable/#sec-linux-zfs
# https://nixos.wiki/wiki/ZFS
# https://search.nixos.org/options?query=services.zfs
boot.kernelPackages = lib.mkForce pkgs.zfs.latestCompatibleLinuxPackages;
boot.supportedFilesystems = [ "zfs" ];
boot.zfs.forceImportRoot = false;
# must be set per host
# head -c4 /dev/urandom | od -A none -t x4
# consider the one automatically generated by systemd:
# head -c 8 /etc/machine-id
#networking.hostId = "12345678";
services.zfs.autoSnapshot.enable = true; # simply runs zfstools
# default args, can be overriden per-dataset
services.zfs.autoSnapshot.frequent = 2; # 15 min
services.zfs.autoSnapshot.hourly = 3;
services.zfs.autoSnapshot.daily = 4;
services.zfs.autoSnapshot.weekly = 3;
services.zfs.autoSnapshot.monthly = 5;
#services.zfs.autoReplication.enable
#services.zfs.autoScrub.enable = true;
#services.zfs.trim.enable = true;
# config.services.nfs.server.enable will automatically export NFS dataset tagged as such
}