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