Imports github.com/gravitational/trace github.com/jonboulle/clockwork github.com/stretchr/testify/require github.com/zmb3/teleport/api/utils github.com/zmb3/teleport/lib/defaults github.com/zmb3/teleport/lib/tlsca Standard library imports crypto/rand crypto/rsa crypto/tls crypto/x509 crypto/x509/pkix encoding/pem fmt net os testing time