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nixos/tasks/lvm: add vdo support

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ajs124 2022-02-01 18:20:49 +01:00
parent 47240ce174
commit 397f065cb4
1 changed files with 30 additions and 2 deletions
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32
nixos/modules/tasks/lvm.nix
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@ -7,17 +7,18 @@ in {
options.services.lvm = {
package = mkOption {
type = types.package;
default = if cfg.dmeventd.enable then pkgs.lvm2_dmeventd else pkgs.lvm2;
default = pkgs.lvm2;
internal = true;
defaultText = literalExpression "pkgs.lvm2";
description = ''
This option allows you to override the LVM package that's used on the system
(udev rules, tmpfiles, systemd services).
Defaults to pkgs.lvm2, or pkgs.lvm2_dmeventd if dmeventd is enabled.
Defaults to pkgs.lvm2, pkgs.lvm2_dmeventd if dmeventd or pkgs.lvm2_vdo if vdo is enabled.
'';
};
dmeventd.enable = mkEnableOption "the LVM dmevent daemon";
boot.thin.enable = mkEnableOption "support for booting from ThinLVs";
boot.vdo.enable = mkEnableOption "support for booting from VDOLVs";
};
config = mkMerge [
@ -40,6 +41,7 @@ in {
environment.etc."lvm/lvm.conf".text = ''
dmeventd/executable = "${cfg.package}/bin/dmeventd"
'';
services.lvm.package = mkDefault pkgs.lvm2_dmeventd;
})
(mkIf cfg.boot.thin.enable {
boot.initrd = {
@ -61,6 +63,32 @@ in {
environment.etc."lvm/lvm.conf".text = concatMapStringsSep "\n"
(bin: "global/${bin}_executable = ${pkgs.thin-provisioning-tools}/bin/${bin}")
[ "thin_check" "thin_dump" "thin_repair" "cache_check" "cache_dump" "cache_repair" ];
environment.systemPackages = [ pkgs.thin-provisioning-tools ];
})
(mkIf cfg.boot.vdo.enable {
boot = {
initrd = {
kernelModules = [ "kvdo" ];
extraUtilsCommands = ''
for BIN in ${pkgs.vdo}/bin/*; do
copy_bin_and_libs $BIN
done
'';
extraUtilsCommandsTest = ''
ls ${pkgs.vdo}/bin/ | while read BIN; do
$out/bin/$(basename $BIN) --help > /dev/null
done
'';
};
extraModulePackages = [ config.boot.kernelPackages.kvdo ];
};
services.lvm.package = mkOverride 999 pkgs.lvm2_vdo; # this overrides mkDefault
environment.systemPackages = [ pkgs.vdo ];
})
(mkIf (cfg.dmeventd.enable || cfg.boot.thin.enable) {
boot.initrd.preLVMCommands = ''