How to restore original client IP from Cloudflare with NGINX ingress controller

I’m using Cloudflare as CDN and it’s hiding the real IP address for the clients I’m using an NGINX ingress controller as a loadbalancer running in Google Kubernetes engine So I’m trying to restore the original IP address and trying to follow this link How can I implement this in the configmap for my Nginx ingress since I need multiple value for the same key “set-real-ip-from” ?