Getting all monolog file paths during deployment in symfony 4

Question

I use monolog in symfony 4.4 with apache http server. Logging is working fine. But I've got a problem.

There are created following log files in prod environment:

• File prod.log with file rights 770, user permission "user1" and group permission "www-data"
• File prod_deprecations.log with file rights 644, user permission "www-data" and group permission "www-data"
• File prod_errors.log with file rights 666, user permission "www-data" and group permission "www-data"

As you can see, the file rights, user permissions and group permissions from log files are different.

And I want to achieve that all three log files have the same file permissions like prod.log.

I am using a self written deploy script in a symfony command. During the deployment the prod.log is created also. But not the other two files.

Now my idea is that i generate all log files during deployment. Therefore i need all monolog file paths during deployment.

Is there a symfony mechanism to get ALL monolog log file paths (for e.g. prod-environment)? How can i achieve this? Thanks for your help in advance.

Here is a excerpt from the monolog config file (monolog.yaml):

monolog:
    handlers:
        nested:
            type: stream
            path: "%kernel.logs_dir%/%kernel.environment%.log"
            level: debug
        deprecation:
            type: stream
            path: "%kernel.logs_dir%/%kernel.environment%_deprecations.log"

        error:
            type:  stream
            path:  "%kernel.logs_dir%/%kernel.environment%_errors.log"
            level: error
            max_files: 10
            action_level: error

Answer 1

This is the way i solved it on my own.

namespace App\Service;

// ...

use Symfony\Component\Yaml\Yaml;
use Symfony\Component\DependencyInjection\ParameterBag\ContainerBagInterface;

class LogFilesGenerator
{
    private $params;

    public function __construct(ContainerBagInterface $params)
    {
        $this->params = $params;
    }

    public function createEmptyLogFiles($output)
    {
        $appEnv = $this->params->get('kernel.environment');
        $kernelLogsDir = $this->params->get('kernel.logs_dir');
        $kernelProjectDir = $this->params->get('kernel.project_dir');

        $filePath = realpath($kernelProjectDir.'/config/packages/'.$appEnv.'/monolog.yaml');

        $monologFileContent = Yaml::parseFile($filePath);
        $monologFileHandlers = $monologFileContent['monolog']['handlers'];


        array_walk_recursive($monologFileHandlers, function($value, $key) use ($appEnv, $kernelLogsDir) {
            if($key === 'path') {
                $path = $value;
                $path = str_replace('%kernel.environment%', $appEnv, $path);
                $path = str_replace('%kernel.logs_dir%', $kernelLogsDir, $path);
                // next step create empty files with $path 
                ...
            }
        });
    }
}