Enforce that channels defined in the config are public loggers

Channels can be created for 2 reasons:
- because a service requests to use it through the monolog.logger tag, in
  which case a private channel is fine (as it is injected using the DIC)
- because the bundle config asks to create it. In this case, the channel
  should be a public service, as the use case is to be able to use this
  channel through public access (otherwise, the previous way would have been
  used).

Author: stof

DependencyInjection/Compiler/LoggerChannelPass.php

@@ -68,6 +68,7 @@ public function process(ContainerBuilder $container)
         foreach ($container->getParameter('monolog.additional_channels') as $chan) {
             $loggerId = sprintf('monolog.logger.%s', $chan);
             $this->createLogger($chan, $loggerId, $container);
+            $container->getDefinition($loggerId)->setPublic(true);
         }
         $container->getParameterBag()->remove('monolog.additional_channels');