[RHOSP][NetApp] URLError: SSL: CERTIFICATE_VERIFY_FAILED

Issue

• Cinder fails to create volume on NetApp storage. The following error occurs in cinder-volume.log:

  2019-03-05 08:40:53.573 107 ERROR cinder.volume.drivers.netapp.dataontap.client.api URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:618)>
  

• TLS/SSL errors are generated by cinder's netapp plugin.