disko/lib/types/mdadm.nix
2023-09-11 19:42:40 +00:00

82 lines
2.7 KiB
Nix

{ config, options, lib, diskoLib, ... }:
{
options = {
name = lib.mkOption {
type = lib.types.str;
default = config._module.args.name;
description = "Name";
};
type = lib.mkOption {
type = lib.types.enum [ "mdadm" ];
default = "mdadm";
internal = true;
description = "Type";
};
level = lib.mkOption {
type = lib.types.int;
default = 1;
description = "mdadm level";
};
metadata = lib.mkOption {
type = lib.types.enum [ "1" "1.0" "1.1" "1.2" "default" "ddf" "imsm" ];
default = "default";
description = "Metadata";
};
content = diskoLib.deviceType { parent = config; device = "/dev/md/${config.name}"; };
_meta = lib.mkOption {
internal = true;
readOnly = true;
type = diskoLib.jsonType;
default =
lib.optionalAttrs (config.content != null) (config.content._meta [ "mdadm" config.name ]);
description = "Metadata";
};
_create = diskoLib.mkCreateOption {
inherit config options;
default = ''
readarray -t disk_devices < <(cat "$disko_devices_dir"/raid_${config.name})
echo 'y' | mdadm --create /dev/md/${config.name} \
--level=${toString config.level} \
--raid-devices="$(wc -l "$disko_devices_dir"/raid_${config.name} | cut -f 1 -d " ")" \
--metadata=${config.metadata} \
--force \
--homehost=any \
"''${disk_devices[@]}"
udevadm trigger --subsystem-match=block
udevadm settle
partprobe
# for some reason mdadm devices spawn with an existing partition table, so we need to wipe it
sgdisk --zap-all /dev/md/${config.name}
${lib.optionalString (config.content != null) config.content._create}
'';
};
_mount = diskoLib.mkMountOption {
inherit config options;
default =
lib.optionalAttrs (config.content != null) config.content._mount;
# TODO we probably need to assemble the mdadm somehow
};
_config = lib.mkOption {
internal = true;
readOnly = true;
default =
[
(if lib.versionAtLeast (lib.versions.majorMinor lib.version) "23.11" then {
boot.swraid.enable = true;
} else {
boot.initrd.services.swraid.enable = true;
})
] ++
lib.optional (config.content != null) config.content._config;
description = "NixOS configuration";
};
_pkgs = lib.mkOption {
internal = true;
readOnly = true;
type = lib.types.functionTo (lib.types.listOf lib.types.package);
default = pkgs: (lib.optionals (config.content != null) (config.content._pkgs pkgs));
description = "Packages";
};
};
}