Provide a way to easily configure log location or configuration

Currently, log files are hard-coded to be in the same folder than the app.jar.

On the converter pod, by adding a configuration file in /arender/modules/conversion-service/config/logback-spring.xml we are able to override the location.
Unfortunately the other service do not include the config directory in their classpath, so it's not possible to do the same.

What is the way to configure either:

• a custom location for log file (the loggin.path property of Spring boot is not used
• a way to customize the log configuration.