Fatal error: Uncaught PDOException: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /var/www/dxomark/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:27 Stack trace: #0 /var/www/dxomark/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(27): PDO->__construct('mysql:host=db;d...', 'dak-symfony', 'yhpczo44qN2bACe...', Array) #1 /var/www/dxomark/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(22): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=db;d...', 'dak-symfony', 'yhpczo44qN2bACe...', Array) #2 /var/www/dxomark/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(356): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'dak-symfony', 'yhpczo44qN2bACe...', Array) #3 /var/www/dxomark/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(889): Doctrine\DBAL\Connection->connect() #4 /var/www/dxomark/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Exec/SingleSelectExecutor.php(50): Doctrine\DBAL\Connection->exec in /var/www/dxomark/app/Resources/views/base.html.twig on line 42