nixpkgs/nixos/tests/systemd-initrd-luks-password.nix

import ./make-test-python.nix ({ lib, pkgs, ... }: {
  name = "systemd-initrd-luks-password";

  nodes.machine = { pkgs, ... }: {
    # Use systemd-boot
    virtualisation = {
      emptyDiskImages = [ 512 512 ];
      useBootLoader = 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 {
        # We have two disks and only type one password - key reuse is in place
        cryptroot.device = "/dev/vdc";
        cryptroot2.device = "/dev/vdd";
      };
      virtualisation.bootDevice = "/dev/mapper/cryptroot";
      # test mounting device unlocked in initrd after switching root
      virtualisation.fileSystems."/cryptroot2".device = "/dev/mapper/cryptroot2";
    };
  };

  testScript = ''
    # Create encrypted volume
    machine.wait_for_unit("multi-user.target")
    machine.succeed("echo -n supersecret | cryptsetup luksFormat -q --iter-time=1 /dev/vdc -")
    machine.succeed("echo -n supersecret | cryptsetup luksFormat -q --iter-time=1 /dev/vdd -")
    machine.succeed("echo -n supersecret | cryptsetup luksOpen   -q               /dev/vdd cryptroot2")
    machine.succeed("mkfs.ext4 /dev/mapper/cryptroot2")

    # Boot from the encrypted disk
    machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-luks.conf")
    machine.succeed("sync")
    machine.crash()

    # Boot and decrypt the disk
    machine.start()
    machine.wait_for_console_text("Please enter passphrase for disk cryptroot")
    machine.send_console("supersecret\n")
    machine.wait_for_unit("multi-user.target")

    assert "/dev/mapper/cryptroot on / type ext4" in machine.succeed("mount")
    assert "/dev/mapper/cryptroot2 on /cryptroot2 type ext4" in machine.succeed("mount")
  '';
})