DrupalKernel::$defaultBootstrapContainerDefinition

protected $defaultBootstrapContainerDefinition = [
  'parameters' => [],
  'services' => [
    'database' => [
      'class' => 'Drupal\Core\Database\Connection',
      'factory' => 'Drupal\Core\Database\Database::getConnection',
      'arguments' => ['default'],
    ],
    'cache.container' => [
      'class' => 'Drupal\Core\Cache\DatabaseBackend',
      'arguments' => ['@database', '@cache_tags_provider.container', 'container'],
    ],
    'cache_tags_provider.container' => [
      'class' => 'Drupal\Core\Cache\DatabaseCacheTagsChecksum',
      'arguments' => ['@database'],
    ],
  ],
];