Search-based cluster service discovery

Yo,

Just wanted to ask what other people were doing - any different tools?
opscode-agent, rightlink, nanite? for service discovery across an
infrastructure.

This is the third time I’ve seen something pop up like

I’ve written a similar library for Sonian, Inc. It has been working
well and allowed us to pull off interesting cluster-separation
techniques like blue/green for test deployments & zero impact
migrations.

We’re all basically programming the same thing and ending up at the
same solution – a search-backed discovery implementation, centered
around time stamping (or optional sorting). Any Opscode thoughts on
the matter?

Regards,

AJ