Docker: rsyslog & logrotate

/etc/rsyslog.d/drupal_default.conf

if $syslogtag == 'drupal_default:' then /var/log/drupal_default.log
&~ 

/etc/logrotate.d/drupal.conf

/var/log/drupal*.log
{
        daily
        rotate 365
        missingok
        notifempty
        compress
        delaycompress
        copytruncate
        dateext
    }

https://www.drupal.org/project/drupal/issues/1252820

https://www.drupal.org/project/log_stdout

https://www.drupal.org/project/monolog