function(ContainerInterface $container) { return new Monolog\Logger('migrations', [ (new Monolog\Handler\RotatingFileHandler('/logs/migrations.log')) ->setFormatter(new Monolog\Formatter\LineFormatter(null, null, false, false, true)) ], [ $container->get(Monolog\Processor\IntrospectionProcessor::class), $container->get(Monolog\Processor\MemoryUsageProcessor::class), $container->get(Monolog\Processor\MemoryPeakUsageProcessor::class), $container->get(Monolog\Processor\PsrLogMessageProcessor::class) ]); } ];