Symfony logs issue

Question

I am using Symfony "symfony/symfony": "2.6.*", .and Mono log to track all logs.

Log will write only when enabling true in app.php

$kernel = new AppKernel('prod',true);

My problem is if I enable to true then the user can see error exception.Can anyone help me how I can achieve to write log when enabling to false in App kernel.

Ref: Symfony doesn't create logs in production environment

Updated Config_prod

monolog:
    handlers:
        main:
            type: fingers_crossed
            action_level: error
            handler: nested
        nested:
            type: stream
            path: "php://stderr"
            level: debug

Answer 1

You should let new AppKernel('prod', false);

You are looking in the wrong folder. Your configuration is writing log in the general php error log

    path: "php://stderr"

Change your config_prod.yml to :

monolog:
    handlers:
        # [...]
        nested:
            type: stream
            path: %kernel.logs_dir%/%kernel.environment%.log
            level: debug

Don't forget to clear the cache with --env=prod