41 lines
No EOL
1,022 B
Nix
41 lines
No EOL
1,022 B
Nix
# SPDX-FileCopyrightText: 2020 Luke Granger-Brown <depot@lukegb.com>
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#
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# SPDX-License-Identifier: Apache-2.0
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{ lib, config, ... }:
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let
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inherit (lib) mkOption types mkAfter mkIf;
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robCfg = config.services.zfs.rollbackOnBoot;
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in
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{
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options.services.zfs.rollbackOnBoot = {
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enable = mkOption {
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type = types.bool;
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default = false;
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};
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snapshot = mkOption {
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type = types.str;
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default = "zpool/local/root@blank";
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};
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keepPaths = mkOption {
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type = types.listOf types.str;
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default = [ ];
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};
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};
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config = {
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boot.supportedFilesystems = [ "zfs" ];
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boot.zfs.devNodes = "/dev/disk/by-partuuid";
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services.zfs.autoScrub.enable = true;
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services.zfs.autoSnapshot = {
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enable = true;
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monthly = 1;
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};
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systemd.tmpfiles.rules = lib.mkAfter (builtins.map (x: "L ${x} - - - - /persist{x}") robCfg.keepPaths);
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boot.initrd.postDeviceCommands = mkIf robCfg.enable
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(mkAfter ''
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zfs rollback -r ${robCfg.snapshot}
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'');
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};
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} |