You could write one pretty simply on top of something like Ringpop: https://github.com/uber/ringpop https://github.com/uber/ringpop There's also a Go implemen

You could write one pretty simply on top of something like Ringpop: https://github.com/uber/ringpop https://github.com/uber/ringpop There's also a Go implementation of Ringpop coming right around the corner too.