If the certificate that you used to configure HTTPS during installation is near expiration, follow these steps to replace the certificate.
Type the following command to get the name of the TLS secret, for example, cloudbees-core-example-com-tls:
kubectl describe ing cjoc -n cloudbees-core
Type the following command to remove the expired certificate:
kubectl delete secret cloudbees-core-example-com-tls -n cloudbees-core
Type the following command to recreate the secret with the new certificate:
kubectl create secret tls cloudbees-core-example-com-tls --key [your-new-key] --cert [your-new-cert] -n cloudbees-core