tomcat logs a lot in production
# du -sch /var/lib/docker/volumes/*
0 /var/lib/docker/volumes/backingFsBlockDev
24K /var/lib/docker/volumes/metadata.db
52G /var/lib/docker/volumes/triplestore_rdf4j_data
115G /var/lib/docker/volumes/triplestore_rdf4j_logs
166G total
add logrotate or disable logging