Gilbert Pellegrom compares local development with Vagrant versus Docker. He concludes that while Docker is interesting, Vagrant is a bit easier to get going, and I quite agree. There are also more mature and well developed tools for WordPress with Vagrant. And, one of the nice features of Docker is not needing a VM, except that you do need one unless you’re on Linux already. I’m still interested in Docker, but I don’t think it’s ready for most of us that just want an easy and reliable local install.