aboutsummaryrefslogtreecommitdiffstats
path: root/system/fileSystemLayouts
diff options
context:
space:
mode:
Diffstat (limited to 'system/fileSystemLayouts')
-rw-r--r--system/fileSystemLayouts/default.nix155
1 files changed, 0 insertions, 155 deletions
diff --git a/system/fileSystemLayouts/default.nix b/system/fileSystemLayouts/default.nix
deleted file mode 100644
index 40855714..00000000
--- a/system/fileSystemLayouts/default.nix
+++ /dev/null
@@ -1,155 +0,0 @@
-# vim: ts=2
-{
- config,
- lib,
- pkgs,
- ...
-}: let
- cfg = config.system.fileSystemLayouts;
- defaultMountOptions = [
- "compress-force=zstd:15" # This saves disk space, at a performance cost
- "noatime" # should have some performance upsides, and I don't use it anyways
- "lazytime" # make time changes in memory
- ];
-in {
- options.system.fileSystemLayouts = {
- enable = lib.mkEnableOption (lib.mdDoc "fileSystemLayout");
- mainDisk = lib.mkOption {
- type = lib.types.path;
- example = lib.literalExpression "/dev/disk/by-uuid/0442cb6d-f13a-4635-b487-fa76189774c5";
- description = lib.mdDoc "Path to the main disk";
- };
- efiDisk = lib.mkOption {
- type = lib.types.path;
- example = lib.literalExpression "/dev/disk/by-uuid/5143-6136";
- description = lib.mdDoc "Path to the main disk";
- };
- ssd = lib.mkOption {
- type = lib.types.bool;
- example = lib.literalExpression "true";
- default = false;
- description = lib.mdDoc "Enable ssd specific improvements?";
- };
- swap = {
- uuid = lib.mkOption {
- type = lib.types.str;
- example = lib.literalExpression "d1d20ae7-3d8a-44da-86da-677dbbb10c89";
- description = lib.mdDoc "The uuid of the swapfile";
- };
- resumeOffset = lib.mkOption {
- type = lib.types.str;
- example = lib.literalExpression "134324224";
- description = lib.mdDoc "The resume offset of the swapfile";
- };
- };
- };
-
- config = lib.mkIf cfg.enable {
- systemd = {
- services = {
- hibernate-preparation = {
- # TODO check if they work
- wantedBy = ["systemd-hibernate.service"];
- unitConfig = {
- Description = "Enable swap file and disable zram before hibernate";
- Before = "systemd-hibernate.service";
- };
- serviceConfig = {
- Type = "oneshot";
- User = "root";
- ExecStart = "${pkgs.dash}/bin/dash -c \"${pkgs.util-linux}/bin/swapon /swap/swapfile && ${pkgs.util-linux}/bin/swapoff /dev/zram0\"";
- };
- };
- hibernate-resume = {
- wantedBy = ["hibernate.target"];
- unitConfig = {
- Description = "Disable swap after resuming from hibernation";
- After = "hibernate.target";
- };
- serviceConfig = {
- Type = "oneshot";
- User = "root";
- ExecStart = "${pkgs.util-linux}/bin/swapoff /swap/swapfile";
- };
- };
- systemd-hibernate.serviceConfig.Environment = "SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1";
- systemd-logind.serviceConfig.Environment = "SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1";
- };
- timers.fstrim = lib.mkIf cfg.ssd {
- wantedBy = ["timers.target"];
- wants = ["fstrim.service"];
- unitConfig = {
- Description = "Discard unused blocks once a week";
- Documentation = "man:fstrim";
- ConditionVirtualization = "!container";
- ConditionPathExists = "!/etc/initrd-release";
- };
- timerConfig = {
- OnCalendar = "weekly";
- AccuracySec = "1h";
- Persistent = "true";
- RandomizedDelaySec = "6000";
- };
- };
- services.fstrim = lib.mkIf cfg.ssd {
- wantedBy = lib.mkForce [];
- unitConfig = {
- Description = "Discard unused blocks on filesystems from /etc/fstab";
- Documentation = "man:fstrim(8)";
- ConditionVirtualization = "!container";
- };
- serviceConfig = {
- Type = "oneshot";
- ExecStart = "${pkgs.util-linux}/bin/fstrim --listed-in /etc/fstab:/proc/self/mountinfo --verbose --quiet-unsupported";
- PrivateDevices = "no";
- PrivateNetwork = "yes";
- PrivateUsers = "no";
- ProtectKernelTunables = "yes";
- ProtectKernelModules = "yes";
- ProtectControlGroups = "yes";
- MemoryDenyWriteExecute = "yes";
- SystemCallFilter = "@default @file-system @basic-io @system-service";
- };
- };
- };
-
- fileSystems = {
- "/" = {
- device = "none";
- fsType = "tmpfs";
- options = ["defaults" "size=4G" "mode=755"];
- };
- "/nix" = {
- device = cfg.mainDisk;
- fsType = "btrfs";
- options = ["subvol=nix-store"] ++ defaultMountOptions;
- };
- "/srv" = {
- device = cfg.mainDisk;
- fsType = "btrfs";
- neededForBoot = true;
- options = ["subvol=persistent-storage"] ++ defaultMountOptions;
- };
- "/swap" = {
- device = cfg.mainDisk;
- fsType = "btrfs";
- neededForBoot = true;
- options = ["subvol=swap"] ++ defaultMountOptions;
- };
- "/boot" = {
- device = cfg.efiDisk;
- fsType = "vfat";
- };
- };
- swapDevices = [];
- zramSwap = {
- enable = true;
- priority = 10; # needs to be higher than harware-swap
- };
- boot.kernelParams = [
- "resume=UUID=${cfg.swap.uuid}"
- "resume_offset=${cfg.swap.resumeOffset}"
- "zswap.enabled=0" # zswap and zram are not really compatible
- ];
- };
-}