Nginx Proxy Manager Get Cloudflare Real Client True IP

Issue:
透過Nginx Proxy Manager LoadBalance 到其他的Container, 但要取得Client 真實的IP.
CLIENT(RealIP) → CLOUDFLARE → NginxProxyManager → Container

Resolve:
Nginx Proxy Manager → Edit Proxy Host → Advanced

Add Custom Nginx Configuration

real_ip_header CF-Connecting-IP;