My FS has been filled by my docker container (docker pull dependencytrack/apiserver). It seems it has duplicated itself in many subfolders.

find /var/lib/docker/overlay2/ -name alpine-1.10.2.jar | wc -l
1550 

(answer should be closer to 1, I guess).

They all reside in /var/lib/docker/overlay2/[diff|merged]/<random_number1>/tmp/jetty-0_0_0_0-8080-dependency-track-apiserver_jar-dtrack-api-any-<random_number2>/webapp/WEB-INF/lib/

where random_number1 is fixed and random_number2 has many differents values.

Is this problem related to my image, or is it docker ? I don't really know how to proceed from here.