33 lines
711 B
Nix
33 lines
711 B
Nix
|
{ lib, config, ... }:
|
||
|
|
let
|
||
|
|
inherit (lib) mkOption types mkAfter mkIf;
|
||
|
|
robCfg = config.services.zfs.rollbackOnBoot;
|
||
|
|
in
|
||
|
|
{
|
||
|
|
options.services.zfs.rollbackOnBoot = {
|
||
|
|
enable = mkOption {
|
||
|
|
type = types.bool;
|
||
|
|
default = false;
|
||
|
|
};
|
||
|
|
snapshot = mkOption {
|
||
|
|
type = types.str;
|
||
|
|
default = "zpool/local/root@blank";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
config = {
|
||
|
|
boot.supportedFilesystems = [ "zfs" ];
|
||
|
|
boot.zfs.devNodes = "/dev/disk/by-partuuid";
|
||
|
|
services.zfs.autoScrub.enable = true;
|
||
|
|
services.zfs.autoSnapshot = {
|
||
|
|
enable = true;
|
||
|
|
monthly = 1;
|
||
|
|
};
|
||
|
|
|
||
|
|
boot.initrd.postDeviceCommands = mkIf robCfg.enable
|
||
|
|
mkAfter ''
|
||
|
|
zfs rollback -r ${robCfg.snapshot}
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
}
|