65 lines
1.8 KiB
Nix
65 lines
1.8 KiB
Nix
{ pkgs
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, lib
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, config
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, ... }: with lib; let
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cfg = config.global.fs;
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in {
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imports = [
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./split.nix
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];
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# -o ashift=12
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# -O encryption=on -O keyformat=passphrase -O keylocation=prompt
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# -O compression=on -O mountpoint=none -O xattr=sa -O acltype=posixacl
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options.global.fs.zfs = {
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persist = mkOption {
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type = with types; str;
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default = cfg.store;
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description = ''
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pool for persist dataset
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defaults to nix store dataset
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'';
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};
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mountpoints = mkOption {
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type = with types; attrsOf str;
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description = "zfs dataset mountpoints";
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};
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externalStore = mkEnableOption "external nix store filesystem";
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split = {
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enable = mkEnableOption "zfs state with split nix store";
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mdProg = mkOption {
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type = with types; str;
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default = "/usr/bin/true";
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description = "mdadm PROGRAM config value";
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};
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secret = mkOption {
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type = with types; str;
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description = "UUID of secret filesystem";
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};
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};
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};
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config = mkIf (cfg.type == "zfs") {
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fileSystems = (mapAttrs (path: dataset: {
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device = "${cfg.zfs.persist}/${dataset}";
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fsType = "zfs";
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# required by impermanence
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neededForBoot = true;
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}) cfg.zfs.mountpoints) // {
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"/nix" = (if !cfg.zfs.externalStore then
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{ device = "${cfg.store}/nix";
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fsType = "zfs";
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} else
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{ inherit (cfg.external) device fsType options; });
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};
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global.fs.zfs.mountpoints."/nix/persist" = "persist";
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services.zfs.trim.enable = true;
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services.zfs.autoSnapshot.enable = true;
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services.zfs.autoScrub.enable = true;
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boot.zfs.devNodes = mkDefault "/dev/disk/by-partuuid";
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boot.kernelPackages = mkDefault config.boot.zfs.package.latestCompatibleLinuxPackages;
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};
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}
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