Symfony 2: Channel Entry Recorder / Service Handler

Question

I am working on a Symfony 2 web application and I would like to introduce a Monolog logger using a dedicated channel for the service:

Configuration:

monolog: handlers: main: type: stream path: %kernel.root_dir%/%kernel.environment%.log level: error #channels: [!alert] alert: type: stream path: %kernel.root_dir%/%kernel.environment%.alert.log level: info channels: [alert] 

Service Config:

 services: some_service: class: Some\Service arguments: [@logger] tags: - { name: monolog.logger, channel: alert } 

Service:

 class SomeService { protected $logger; public function __construct($logger) { $this->logger = $logger; $this->logger->info('Log this!'); } 

Prod.log file:

[2016-03-28 11:25:47] alert.INFO: Register!

Problem:. Although I specifically add a registrar using the alert channel, the message is processed by the main handler. Thus, messages are written to the prod.log file instead of the prod.alert.log file.

When I leave the line channels: [!alert] as a comment, the message is logged on prod.log . When I activate this line by deleting the comment, the message is not logged at all (the main handler correctly ignores the channel).

What do I need to use a specific handler to target a specific log file, email program, etc.? Messages in the alert channel must be handled by the alert handler, while all other handlers are ignored.

Answer 1

Use the special service created for the Monolog handler:

 services: some_service: class: Namespace\Some\Service arguments: ["@monolog.logger.alert"]