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|
{ lib, pkgs, ... }:
let
keyfile = pkgs.writeText "luks-keyfile" ''
MIGHAoGBAJ4rGTSo/ldyjQypd0kuS7k2OSsmQYzMH6TNj3nQ/vIUjDn7fqa3slt2
gV6EK3TmTbGc4tzC1v4SWx2m+2Bjdtn4Fs4wiBwn1lbRdC6i5ZYCqasTWIntWn+6
FllUkMD5oqjOR/YcboxG8Z3B5sJuvTP9llsF+gnuveWih9dpbBr7AgEC
'';
in
{
name = "systemd-initrd-luks-keyfile";
nodes.machine =
{ pkgs, ... }:
{
# Use systemd-boot
virtualisation = {
emptyDiskImages = [ 512 ];
useBootLoader = true;
# Necessary to boot off the encrypted disk because it requires a init script coming from the Nix store
mountHostNixStore = true;
useEFIBoot = true;
};
boot.loader.systemd-boot.enable = true;
environment.systemPackages = with pkgs; [ cryptsetup ];
boot.initrd.systemd = {
enable = true;
emergencyAccess = true;
};
specialisation.boot-luks.configuration = {
boot.initrd.luks.devices = lib.mkVMOverride {
cryptroot = {
device = "/dev/vdb";
keyFile = "/etc/cryptroot.key";
};
};
virtualisation.rootDevice = "/dev/mapper/cryptroot";
boot.initrd.secrets."/etc/cryptroot.key" = keyfile;
};
};
testScript =
{ nodes, ... }:
let
boot-luks = nodes.machine.specialisation.boot-luks.configuration.system.build.toplevel;
in
# python
''
# Create encrypted volume
machine.wait_for_unit("multi-user.target")
machine.succeed("cryptsetup luksFormat -q --iter-time=1 -d ${keyfile} /dev/vdb")
machine.succeed("cryptsetup luksOpen --key-file ${keyfile} /dev/vdb cryptroot")
machine.succeed("mkfs.ext4 /dev/mapper/cryptroot")
# Boot from the encrypted disk
machine.succeed("${boot-luks}/bin/switch-to-configuration boot")
machine.succeed("sync")
machine.crash()
# Boot and decrypt the disk
machine.wait_for_unit("multi-user.target")
assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
'';
}
|
