Platform.sh routes for local dev environment

settings.local.php

$routes = array(
    'https://www.domain.local/' => (object) array(
      'upstream' => 'drupal',
      'original_url' => 'https://www.{default}/',
    ),
    'http://blog.domain.local/' => (object) array(
      'upstream' => 'drupal',
      'original_url' => 'http://blog.{default}/',
    ),
    'http://pro.domain.local/' => (object) array(
      'upstream' => 'drupal',
      'original_url' => 'http://pro.{default}/',
    ),
  );
  putenv('PLATFORM_ROUTES=' . base64_encode(json_encode($routes)));