private function _installCraft()
{
$options = ['username' => getenv('CRAFT_USERNAME'), 'email' => getenv('CRAFT_EMAIL'), 'password' => getenv('CRAFT_PASSWORD'), 'siteName' => getenv('CRAFT_SITENAME'), 'siteUrl' => getenv('CRAFT_SITEURL'), 'locale' => getenv('CRAFT_LOCALE')];
Craft::app()->install->run($options);
}