feat: ask-password as shell

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

hosts/hyp-01/modules/networking.nix

@@ -1,4 +1,9 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 {
   options = {
     networking.hyp-01.ipv4.address = lib.mkOption {
@@ -44,6 +49,18 @@
     boot.initrd = {
       availableKernelModules = [ "e1000e" ];
 
+      systemd =
+        let
+          askPass = pkgs.writeShellScriptBin "zfs-askpass" ''
+            systemd-tty-ask-password-agent --watch
+          '';
+        in
+        {
+          enable = true;
+          storePaths = [ "${askPass}/bin/zfs-askpass" ];
+          users.root.shell = "${askPass}/bin/zfs-askpass";
+        };
+
       network = {
         enable = true;