Use cert-manager certificate for rancher UI

Hi there,

i try to setup rancher on a rancherOS single Node with letsencrypt certificate. The Host is not available from outside. I installed rancher with the “DEFAULT SELF-SIGNED CERTIFICATE” ssl variant. Then I configured cert-manager as described in the documentation for dns-validation. I then requested a certificate and got it.
My question is now how to export this certificate to the rancher container to the /etc/rancher/ssl/{cert,key}.pem path so that it is used by rancher WebUI.

Thanks in advance