69 lines
1.7 KiB
Nix
69 lines
1.7 KiB
Nix
{ config, lib, ... }:
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with lib;
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let
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cfg = config.boot.tmp;
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in
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{
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imports = [
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(mkRenamedOptionModule [ "boot" "cleanTmpDir" ] [ "boot" "tmp" "cleanOnBoot" ])
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(mkRenamedOptionModule [ "boot" "tmpOnTmpfs" ] [ "boot" "tmp" "useTmpfs" ])
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(mkRenamedOptionModule [ "boot" "tmpOnTmpfsSize" ] [ "boot" "tmp" "tmpfsSize" ])
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];
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options = {
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boot.tmp = {
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cleanOnBoot = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to delete all files in {file}`/tmp` during boot.
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'';
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};
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tmpfsSize = mkOption {
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type = types.oneOf [ types.str types.types.ints.positive ];
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default = "50%";
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description = ''
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Size of tmpfs in percentage.
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Percentage is defined by systemd.
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'';
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};
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useTmpfs = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to mount a tmpfs on {file}`/tmp` during boot.
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::: {.note}
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Large Nix builds can fail if the mounted tmpfs is not large enough.
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In such a case either increase the tmpfsSize or disable this option.
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:::
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'';
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};
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};
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};
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config = {
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# When changing remember to update /tmp mount in virtualisation/qemu-vm.nix
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systemd.mounts = mkIf cfg.useTmpfs [
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{
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what = "tmpfs";
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where = "/tmp";
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type = "tmpfs";
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mountConfig.Options = concatStringsSep "," [
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"mode=1777"
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"strictatime"
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"rw"
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"nosuid"
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"nodev"
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"size=${toString cfg.tmpfsSize}"
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];
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}
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];
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systemd.tmpfiles.rules = optional cfg.cleanOnBoot "D! /tmp 1777 root root";
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};
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}
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