Отключение кеширования при разработке и включение Twig Debug

Для отключения кеширования в Drupal и включения отладки нам нужно выполнить ряд шагов:
скопируем файл
sites/example.settings.local.php
в
sites/default/settings.local.php:

Подключение settings.local.php

Для подключения settings.local.php нужно раскомментировать строки в settings.php

/**
 * Load local development override configuration, if available.
 *
 * Create a settings.local.php file to override variables on secondary (staging,
 * development, etc.) installations of this site.
 *
 * Typical uses of settings.local.php include:
 * - Disabling caching.
 * - Disabling JavaScript/CSS compression.
 * - Rerouting outgoing emails.
 *
 * Keep this code block at the end of this file to take full effect.
 */

if (file_exists($app_root . '/' . $site_path . '/settings.local.php')) {
  include $app_root . '/' . $site_path . '/settings.local.php';
}

в settings.local.php раскомментировать настройки

$config['system.performance']['css']['preprocess'] = FALSE;
$config['system.performance']['js']['preprocess'] = FALSE;

$settings['cache']['bins']['render'] = 'cache.backend.null';
$settings['cache']['bins']['page'] = 'cache.backend.null';
$settings['cache']['bins']['dynamic_page_cache'] = 'cache.backend.null';

$settings['extension_discovery_scan_tests'] = FALSE;

Настройки в development.services.yml

# Local development services.
#
# The development.services.yml file allows the developer to override
# container parameters for debugging.
#
# To activate this feature, follow the instructions at the top of the
# 'example.settings.local.php' file, which sits next to this file.
#
# Be aware that in Drupal's configuration system, all the files that
# provide container definitions are merged using a shallow merge approach
# within \Drupal\Core\DependencyInjection\YamlFileLoader.
# This means that if you want to override any value of a parameter, the
# whole parameter array needs to be copied from
# sites/default/default.services.yml or from core/core.services.yml file.
parameters:
  http.response.debug_cacheability_headers: true
  twig.config:
    debug: true
    auto_reload: true
    cache: false
services:
  cache.backend.null:
    class: Drupal\Core\Cache\NullBackendFactory