Fatal error: Uncaught PDOException: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:43 Stack trace: #0 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(43): PDO->__construct('mysql:host=mysq...', 'root', 'root', Array) #1 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(44): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=mysq...', 'root', 'root', Array) #2 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(360): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'root', 'root', Array) #3 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): Doctrine\DBAL\Connection->connect() #4 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\DBAL\Connection->getDatabasePlatformVersion() #5 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\DBAL\C in /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 103