Magento 2 Cloud Multistore where store set by url /{{store_code}}

gistfile1.txt

Two steps:
1. Setup Multistore at the admin where each store url are the same
2. Create pub/{{store_code}}/index.php
 
<?php

require realpath(__DIR__) . '/../../app/bootstrap.php';
$params = $_SERVER;
$params[\Magento\Store\Model\StoreManager::PARAM_RUN_CODE] = '{{store_code}}';
$params[\Magento\Store\Model\StoreManager::PARAM_RUN_TYPE] = 'website';
$bootstrap = \Magento\Framework\App\Bootstrap::create(BP, $params);

$app = $bootstrap->createApplication('Magento\Framework\App\Http');
$bootstrap->run($app);

?>