104 lines
3 KiB
Nix
104 lines
3 KiB
Nix
{
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lib,
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pkgs,
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inputs,
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namespace,
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system,
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target,
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format,
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virtual,
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systems,
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config,
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...
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}:
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with lib;
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with lib.${namespace}; let
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cfg = config.${namespace}.presets.disko.impermanenceBtrfsLuks;
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in {
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options.${namespace}.presets.disko.impermanenceBtrfsLuks = with types; {
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enable = mkBoolOpt false "Enable preset";
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device = mkOpt' str "/dev/nvme0n1";
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swapSize = mkOpt' (nullOr int) 32;
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};
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config = mkIf cfg.enable {
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${namespace}.impermanence = {
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enable = true;
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persistentStorage = "/persist";
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};
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disko.devices = {
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disk = {
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main = {
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type = "disk";
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inherit (cfg) device;
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content = {
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type = "gpt";
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partitions = {
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ESP = {
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label = "boot";
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name = "ESP";
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size = "512M";
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type = "EF00";
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content = {
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type = "filesystem";
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format = "vfat";
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mountpoint = "/boot";
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mountOptions = [
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"defaults"
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"umask=0077"
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];
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};
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};
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luks = {
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size = "100%";
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label = "luks";
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content = {
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type = "luks";
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name = "root_vg";
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extraOpenArgs = [
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"--allow-discards"
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"--perf-no_read_workqueue"
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"--perf-no_write_workqueue"
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];
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# https://0pointer.net/blog/unlocking-luks2-volumes-with-tpm2-fido2-pkcs11-security-hardware-on-systemd-248.html
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settings = {
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allowDiscards = true;
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crypttabExtraOpts = [
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"fido2-device=auto"
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"token-timeout=10"
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];
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};
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passwordFile = "/tmp/secret.key";
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content = {
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type = "btrfs";
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extraArgs = ["-L" "nixos" "-f"];
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subvolumes = {
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"/root" = {
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mountpoint = "/";
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mountOptions = ["subvol=root" "compress=zstd" "noatime"];
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};
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"/nix" = {
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mountpoint = "/nix";
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mountOptions = ["subvol=nix" "compress=zstd" "noatime"];
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};
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"/persist" = {
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mountpoint = "/persist";
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mountOptions = ["subvol=persist" "compress=zstd" "noatime"];
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};
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"/swap" = mkIf (cfg.swapSize != null) {
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mountpoint = "/swap";
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swap.swapfile.size = "${builtins.toString cfg.swapSize}G";
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};
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};
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};
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};
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};
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};
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};
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};
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};
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};
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fileSystems."/persist".neededForBoot = true;
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};
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}
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