CoreOS (now part of redhat) offered "fleet" which was multi-computer container orchestration, and used systemd style fleet files and raft protocol to do leader election etc (back when raft was still a novel concept). We ran it in production for about a year (2015) before it became abundantly clear (2016) the future was Kubernetes. I think the last security update Fleet got was Feb 2017 so it's pretty much dead for new adoption, if anyone is still using it.

But TL;DR we've already done systemd style container orchestration, and it was ok.