Imports github.com/docker/machine/libmachine/state github.com/docker/machine/libmachine/mcnutils github.com/docker/machine/libmachine/log github.com/docker/machine/libmachine/drivers github.com/docker/machine/libmachine/mcnflag github.com/docker/machine/libmachine/ssh Standard library imports bufio bytes errors fmt net os os/exec strings time