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 <https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx->
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" ?

```
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingressname
  annotations:
    kubernetes.io/ingress.class: "nginx"
    nginx.ingress.kubernetes.io/proxy-body-size: "0"
    nginx.ingress.kubernetes.io/affinity: "cookie"
    nginx.ingress.kubernetes.io/session-cookie-name: "route"
    nginx.ingress.kubernetes.io/session-cookie-expires: "172800"
    nginx.ingress.kubernetes.io/session-cookie-max-age: "172800"
spec:
  tls:
  - hosts:
    - example.com
    secretName: sslcertificate
  rules:
  - host: example.com
    http:
      paths:
      - backend:
          serviceName: service
          servicePort: 80
        path: /

```