Create monolog channel Symfony

https://symfony.com/doc/current/logging/channels_handlers.html

php bin/console debug:container monolog

OR

 docker/ctrl exec "bin/console debug:container monolog"

monolog-bundle/Configuration.php at master · symfony/monolog-bundleGitHub

Пример конфига с новым каналом colors:

monolog:
    channels: ['colors']
    handlers:
        main:
            type: stream
            path: "%kernel.logs_dir%/%kernel.environment%.log"
            level: debug
            channels: ["!event", "!doctrine"]
        doctrine:
            type:     stream
            path:     "%kernel.logs_dir%/doctrine.log"
            channels: [doctrine]
        colors:
            type:     stream
            path:     "%kernel.logs_dir%/colors.log"
            channels: [colors]

Потом привязываем сервис лога для каждого класса отдельно в services.yaml:

App\Components\Modules\Capsules\SelectionByColors\SelectionByColorsService:
    arguments:
        $logger: '@monolog.logger.colors'