$enroot import docker://ubuntu
[INFO] Querying registry for permission grant
curl: (60) SSL certificate problem: self signed certificate in certificate chain
More details here: https://curl.haxx.se/docs/sslcerts.html
curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.
Check that your certificates are up to date, and that you're not using a proxy that has untrusted certificates. In the latter case, you have to configure your system or Enroot to trust those.
unable to import image enroot version : 3.1.1