Imports github.com/docker/machine/libmachine/drivers github.com/docker/machine/libmachine/log github.com/docker/machine/libmachine/mcnflag github.com/docker/machine/libmachine/mcnutils github.com/docker/machine/libmachine/ssh github.com/docker/machine/libmachine/state Standard library imports bufio bytes fmt io/ioutil net os os/exec path/filepath strings time archive/tar