Hey. It seems that zookeeper actually already contained a systemd unit in stretch (and still does so in the source package):
https://packages.debian.org/stretch/all/zookeeperd/filelist but apparently this got already lost in buster (and by the way not properly cleaned up, so there remain dead dangling symlinks in /etc/systemd/system). Cheers, Chris. __ This is the maintainer address of Debian's Java team <https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/pkg-java-maintainers>. Please use debian-j...@lists.debian.org for discussions and questions.