Imports github.com/Sirupsen/logrus github.com/docker/machine/libmachine/log github.com/rancher/go-rancher/client github.com/docker/machine/libmachine/cert Standard library imports bytes crypto/rand crypto/rsa crypto/tls crypto/x509 crypto/x509/pkix encoding/pem errors fmt io io/ioutil math/big math/rand net net/http net/url os os/exec path strings time