mirror of
https://github.com/CHN-beta/nixos.git
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120 lines
3.7 KiB
Nix
120 lines
3.7 KiB
Nix
inputs:
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{
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options.nixos.fileSystems = let inherit (inputs.lib) mkOption types; in
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{
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mount =
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{
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# device = mountPoint;
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vfat = mkOption { type = types.attrsOf types.nonEmptyStr; };
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# device.subvol = mountPoint;
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btrfs = mkOption { type = types.attrsOf (types.attrsOf types.nonEmptyStr); };
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};
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decrypt.auto = mkOption { type = types.attrsOf (types.submodule { options =
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{
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mapper = mkOption { type = types.nonEmptyStr; };
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ssd = mkOption { type = types.bool; default = false; };
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}; }); };
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mdadm = mkOption { type = types.nullOr types.str; };
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swap = mkOption { type = types.listOf types.nonEmptyStr; };
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resume = mkOption { type = types.nullOr (types.str or (types.submodule { options =
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{ device = mkOption { type = types.nonEmptyStr; }; offset = mkOption { type = types.ints.unsigned; }; }; })); };
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# cleanRootfs = mkOption { type = types.nullOr
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# swap and resume
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# swap != resume.device if swap is a file
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# swap = mkOption { type = types.nullOr types.str; };
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# resume =
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# {
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# device = mkOption { type = types.nullOr types.str; };
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# # sudo btrfs fi mkswapfile --size 64g --uuid clear swap
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# # sudo btrfs inspect-internal map-swapfile -r swap
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# offset = mkOption { type = types.nullOr types.ints.unsigned; };
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# };
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};
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config =
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{
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fileSystems =
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(
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builtins.listToAttrs (builtins.map
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(device: { name = device.value; value = { device = device.name; fsType = "vfat"; }; })
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(inputs.localLib.attrsToList inputs.config.nixos.fileSystems.mount.vfat))
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)
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// (
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builtins.listToAttrs (builtins.concatLists (builtins.map
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(
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device: builtins.map
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(
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subvol:
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{
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name = subvol.value;
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value =
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{
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device = device.name;
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fsType = "btrfs";
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options = [ "compress-force=zstd:8" "subvol=${subvol.name}" ];
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};
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}
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)
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(inputs.localLib.attrsToList device.value)
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)
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(inputs.localLib.attrsToList inputs.config.nixos.fileSystems.mount.btrfs)))
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);
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swapDevices = builtins.map (device: { device = device; }) inputs.config.nixos.fileSystems.swap;
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boot =
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{
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initrd = {}
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// (
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if inputs.config.nixos.fileSystems.decrypt.auto != null then
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{
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luks.devices =
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(
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builtins.listToAttrs (builtins.map
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(
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device:
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{
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name = device.value.mapper;
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value =
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{
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device = device.name;
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allowDiscards = device.value.ssd;
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bypassWorkqueues = device.value.ssd;
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crypttabExtraOpts = [ "fido2-device=auto" ];
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};
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}
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)
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(inputs.localLib.attrsToList inputs.config.nixos.fileSystems.decrypt.auto))
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);
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}
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else {}
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)
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// (
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if inputs.config.nixos.fileSystems.mdadm != null then
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{ services.swraid = { enable = true; mdadmConf = inputs.config.nixos.fileSystems.mdadm; }; }
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else {}
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);
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}
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// (
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if inputs.config.nixos.fileSystems.resume != null then
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if builtins.typeOf inputs.config.nixos.fileSystems.resume == "string" then
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{ resumeDevice = inputs.config.nixos.fileSystems.resume; }
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else
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{
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resumeDevice = inputs.config.nixos.fileSystems.resume.device;
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kernelModules = [ "resume_offset=${inputs.config.nixos.fileSystems.resume.offset}" ];
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}
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else {}
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);
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};
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}
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# Disable CoW for VM image and database:
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# sudo chattr +C images
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# zstd:15 cause sound stuttering
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# From btrfs wiki: 1-3 are real-time, 4-8 slower with improved compression,
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# 9-15 try even harder though the resulting size may not be significantly improved.
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# https://btrfs.readthedocs.io/en/latest/Compression.html
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# sudo btrfs filesystem resize -50G /nix
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# sudo cryptsetup status root
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# sudo cryptsetup -b 3787456512 resize root
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# sudo cfdisk /dev/nvme1n1p3
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