Perhaps someone has already written a unit file.
Here's a couple you could use as a starting point. You'll want to add an After= for the MySQL dependency.
<https://www.brokenbits.com.br/site/en/blog/2016/10/20/systemd-service-for-apache-ofbiz/> <https://gist.github.com/bagasme/1de1908c86303c83b7bd51d50a12e041>
