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sid 2026-03-30 12:35:50 +02:00
parent ab45816418
commit 951182f6df
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55
modules/nixos/zfs/default.nix Normal file
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{
config,
pkgs,
lib,
...
}:
# Set `networking.hostId` to:
# $ head -c 8 /etc/machine-id
# Mark datasets to snapshot:
# $ sudo zfs set com.sun:auto-snapshot:daily=true dpool/data/backup
# Generate SSH key for replication (empty passphrase):
# $ sudo -i ssh-keygen -t rsa -b 4096 -f /root/.ssh/zfs-replication
let
cfg = config.services.zfs;
inherit (lib) mkDefault mkForce;
in
{
boot.supportedFilesystems = [ "zfs" ];
boot.loader.systemd-boot.enable = mkForce false;
boot.loader.grub.enable = mkForce true;
boot.loader.grub.zfsSupport = mkForce true;
services.zfs.trim = {
enable = mkDefault true;
interval = mkDefault "weekly";
};
services.zfs.scrub = {
enable = mkDefault true;
interval = mkDefault "monthly";
};
services.zfs.autoSnapshot = {
enable = mkDefault true;
flags = mkDefault "-k -p --utc";
frequent = mkDefault 0;
hourly = mkDefault 24;
daily = mkDefault 7;
weekly = mkDefault 4;
monthly = mkDefault 0;
};
services.zfs.autoReplication = {
username = mkDefault "root";
identityFilePath = mkDefault "/root/.ssh/zfs-replication";
followDelete = mkDefault true;
};
environment.systemPackages = with pkgs; [ lz4 ];
}