Login to Cyberpanel using domain and port

Hi there, I use DigitalOcean, and I installed Cyberpanel directly from DigitalOcean Marketplace. Eveything is fine, I can access my Cyberpanel with ip:8090.but I want to access my Cyberpanel with my domain and port because it’ll be on HTTPS which is secure. And I use Cloudflare free plan, and I want to use Cloudflare in future also. Please share all the proper steps to make it possible.