Puma as a service
/tools/jungle/upstart for Ubuntu's upstart scripts.
Deprecatation Warning :
init.d was replaced by
systemd since Debian 8 and Ubuntu 16.04, you should look into /docs/systemd unless you are on an older OS.
/tools/jungle/init.d for tools to use with init.d and start-stop-daemon.
/tools/jungle/rc.d for FreeBSD's rc.d scripts