Files
clan-core/clanModules/machine-id/default.nix
2024-09-13 12:17:49 +02:00

46 lines
997 B
Nix

{
config,
pkgs,
lib,
...
}:
let
var = config.clan.core.vars.generators.machine-id.files.machineId or { };
in
{
config = lib.mkMerge [
(lib.mkIf ((var.machineId.value or null) != null) {
assertions = [
{
assertion = lib.stringLength var.machineId.value == 32;
message = "machineId must be exactly 32 characters long.";
}
];
boot.kernelParams = [
''systemd.machine_id=${var.machineId.value}''
];
environment.etc."machine-id" = {
text = var.machineId.value;
};
})
{
clan.core.vars.generators.machine-id = {
files.machineId.secret = false;
runtimeInputs = [
pkgs.coreutils
pkgs.bash
];
script = ''
uuid=$(bash ${../uuid4.sh})
# Remove the hyphens from the UUID
uuid_no_hyphens=$(echo -n "$uuid" | tr -d '-')
echo -n "$uuid_no_hyphens" > "$out/machineId"
'';
};
}
];
}