Using Redis as a Cache in Laravel - Honeybadger Developer Blog

'redis' => [

  'client' => env('REDIS_CLIENT', 'predis'),

  'options' => [
      'cluster' => env('REDIS_CLUSTER', 'redis'),
      'prefix' => env('REDIS_PREFIX', Str::slug(env('APP_NAME', 'laravel'), '_').'_database_'),
  ],

  'default' => [
      'url' => env('REDIS_URL'),
      'host' => env('REDIS_HOST', '127.0.0.1'),
      'password' => env('REDIS_PASSWORD', null),
      'port' => env('REDIS_PORT', '6379'),
      'database' => env('REDIS_DB', '0'),
  ],

],