nixpkgs/nixos/tests/web-servers/ttyd.nix

{ lib, pkgs, ... }:
{
  name = "ttyd";
  meta.maintainers = with lib.maintainers; [ stunkymonkey ];

  nodes.readonly =
    { pkgs, ... }:
    {
      services.ttyd = {
        enable = true;
        entrypoint = [ (lib.getExe pkgs.htop) ];
        writeable = false;
      };
    };

  nodes.writeable =
    { pkgs, ... }:
    {
      services.ttyd = {
        enable = true;
        username = "foo";
        passwordFile = pkgs.writeText "password" "bar";
        writeable = true;
      };
    };

  testScript = ''
    for machine in [readonly, writeable]:
      machine.wait_for_unit("ttyd.service")
      machine.wait_for_open_port(7681)
      response = machine.succeed("curl -vvv -u foo:bar -s -H 'Host: ttyd' http://127.0.0.1:7681/")
      assert '<title>ttyd - Terminal</title>' in response, "Page didn't load successfully"
  '';
}