Hi,
not sure what your exact question is here. By default docker containers will be running with INFO logging. Are you missing (debug) log statements in the code?
Are you looking for a way to run the containers with an increased log level?
To answer the last one;
docker run --name flowable-idm -p:8080:8080 -e logging.level.org.flowable=DEBUG flowable/flowable-idm
(or any package you would like to target)
Hope this helps
Yvo