nixpkgs/nixos/tests/lxd/ui.nix

import ../make-test-python.nix (
  { pkgs, ... }:
  {
    name = "lxd-ui";

    nodes.machine =
      { lib, ... }:
      {
        virtualisation = {
          lxd.enable = true;
          lxd.ui.enable = true;
        };

        environment.systemPackages =
          let
            seleniumScript =
              pkgs.writers.writePython3Bin "selenium-script"
                {
                  libraries = with pkgs.python3Packages; [ selenium ];
                }
                ''
                  from selenium import webdriver
                  from selenium.webdriver.common.by import By
                  from selenium.webdriver.firefox.options import Options
                  from selenium.webdriver.support.ui import WebDriverWait

                  options = Options()
                  options.add_argument("--headless")
                  service = webdriver.FirefoxService(executable_path="${lib.getExe pkgs.geckodriver}")  # noqa: E501

                  driver = webdriver.Firefox(options=options, service=service)
                  driver.implicitly_wait(10)
                  driver.get("https://localhost:8443/ui")

                  wait = WebDriverWait(driver, 60)

                  assert len(driver.find_elements(By.CLASS_NAME, "l-application")) > 0
                  assert len(driver.find_elements(By.CLASS_NAME, "l-navigation__drawer")) > 0

                  driver.close()
                '';
          in
          with pkgs;
          [
            curl
            firefox-unwrapped
            geckodriver
            seleniumScript
          ];
      };

    testScript = ''
      machine.wait_for_unit("sockets.target")
      machine.wait_for_unit("lxd.service")
      machine.wait_for_file("/var/lib/lxd/unix.socket")

      # Wait for lxd to settle
      machine.succeed("lxd waitready")

      # Configure LXC listen address
      machine.succeed("lxc config set core.https_address :8443")
      machine.succeed("systemctl restart lxd")

      # Check that the LXD_UI environment variable is populated in the systemd unit
      machine.succeed("cat /etc/systemd/system/lxd.service | grep 'LXD_UI'")

      # Ensure the endpoint returns an HTML page with 'LXD UI' in the title
      machine.succeed("curl -kLs https://localhost:8443/ui | grep '<title>LXD UI</title>'")

      # Ensure the application is actually rendered by the Javascript
      machine.succeed("PYTHONUNBUFFERED=1 selenium-script")
    '';
  }
)