Hi folk, I've now also playing around with vagrant + docker, too. Just as Roman said that for ci builds we probably don't need vagrant being involved since builds are already running on linux environment. But for bigtop-deploy, I think vagrant comes with it's value which allows users to spin up a hadoop cluster on any kind of host like OS X and windows. With docker coming in now we can provision bigtop cluster on containers instead of VMs. This can speed up the whole provisioning process and reduce the unnecessary hypervisor overhead. I'm now trying to make some progress on provisioning bigtop cluster using vagrant + docker and will start to check in some jiras in my spare cycles.
BR, Evans Ye
