[CentOS] Whether to use systemd to start services

Tue Sep 6 20:03:01 UTC 2016
Stalker, Tim <Tim.Stalker at ucdenver.edu>

I'm wondering if it's normally required to start services with systemd as opposed to sysv? I currently load a few services using the old init.d/service funtionality, which still works fine. Is this ok or is sysv going to be fully discontinued in the future? The service I load is celeryd via init.d but so far finding few pointers as to how to do this with a celery.service file. I can load the service with this line execStart=/etc/init.d/celeryd