Netconf driver certificate is present in the secret netconf-driver-tls. Get the certificate from the secret.
bash oc get secret netconf-driver-tls -o 'go-template={{index .data "tls.crt"}}' | base64 -d > netconf-tls.pem
Use the following command to onbaord Netconf driver into CP4NA environment called 'dev01'.
bash lmctl resourcedriver add --type netconf --url https://netconf-driver:7139 dev01 --certificate netconf-tls.pem