124 lines
3.5 KiB
Nix
124 lines
3.5 KiB
Nix
# ============================================================================
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# FS & Storage Configuration
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# ============================================================================
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# This module defines:
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# - Disko partition layout (EFI, swap, root)
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# - Filesystem options (device, swap size)
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#
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# Only applies to systems with physical disk management needs
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# (not containers, not WSL, not systems without a configured device)
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{ config, lib, ... }:
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let
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cfg = config.athenix.host.filesystem;
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# Only enable disk config if device is set and disko is enabled
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hasDiskConfig = cfg.device != null && config.disko.enableConfig;
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in
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{
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options.athenix = {
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host.filesystem = {
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device = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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default = null;
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description = ''
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The main disk device to use for automated partitioning and installation.
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When set, enables disko for declarative disk management with:
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- 1GB EFI boot partition
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- Optional swap partition (see swapSize)
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- Root partition using remaining space
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Leave null for systems that don't need disk partitioning (containers, WSL).
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'';
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example = "/dev/nvme0n1";
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};
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useSwap = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = ''
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Whether to create and use a swap partition.
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Disable for systems with ample RAM or SSDs where swap is undesirable.
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'';
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};
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swapSize = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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default = null;
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description = ''
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Size of the swap partition (e.g., "16G", "32G").
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Recommended sizes:
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- 8-16GB for desktops with 16GB+ RAM
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- 32GB for laptops (enables hibernation)
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- Match RAM size for systems <8GB RAM
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'';
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example = "32G";
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};
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};
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};
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config = lib.mkMerge [
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{
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# ========== Disk Partitioning (Disko) ==========
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disko.enableConfig = lib.mkDefault (cfg.device != null);
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}
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(lib.mkIf hasDiskConfig {
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disko.devices = {
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disk.main = {
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type = "disk";
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device = cfg.device;
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content = {
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type = "gpt";
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partitions = {
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# EFI System Partition
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ESP = {
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name = "ESP";
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label = "BOOT";
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size = "1G";
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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 = [ "umask=0077" ];
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extraArgs = [
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"-n"
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"BOOT"
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];
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};
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};
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# Swap Partition (size configurable per host)
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swap = lib.mkIf cfg.useSwap {
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name = "swap";
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label = "swap";
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size = cfg.swapSize;
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content = {
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type = "swap";
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};
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};
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# Root Partition (takes remaining space)
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root = {
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name = "root";
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label = "root";
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size = "100%";
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content = {
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type = "filesystem";
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format = "ext4";
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mountpoint = "/";
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extraArgs = [
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"-L"
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"ROOT"
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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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