Attached patches implement LWCA renewal support
(
https://fedorahosted.org/pki/ticket/2327).
It includes REST API
POST /ca/rest/authorities/<id>/renew
But not implemented in CLI tool yet. If we decide to make it a
first-class CLI feature (cf certmonger, IPA, etc managing the
renewal) then I'll file the ticket and implement it at that time.
Cheers,
Fraser