Any simple and safe way to start services on CentOS7 / systemd?

It seems systemd is finally working reliably in docker, see:

docker run -it \
   --name=tmp \
   --cap-add=SYS_ADMIN \
   -e "container=docker" \
   -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
   --tmpfs /run \
   --tmpfs /run/lock \
   ubuntu:16.04 /sbin/init
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