We'll have to test Chronograf against 3.0, but I think it should just work. Unfortunately, we don't have the resources to continue developing it, but it's all available under a permissive MIT license here: https://github.com/influxdata/chronograf
That is unfortunate. You guys need to stop chasing shiny objects and pick up the 1.x stack. You had a lot going and you’re about to make the same mistakes again.