创建(hyper)
docker-machine create -d hyperv --hyperv-virtual-switch "Virtual Switch(Main)" manager1
创建(virbox)
docker-machine create --driver virtualbox test
错误处理
failure getting a version tag from the Github API response (are you getting rate limited by Github?)
curl -Lo ~/.docker/machine/cache/boot2docker.iso https://github.com/boot2docker/boot2docker/releases/download/v1.9.1/boot2docker.iso