How does Cloudflare's WAF interact with the Nginx Ingress Controller's security?

Cloudflare's Web Application Firewall (WAF) protects your applications from common web exploits like SQL injection and cross-site scripting (XSS). It acts as a layer of defense *before* traffic reaches your Kubernetes cluster and Nginx Ingress Controller. Cloudflare's WAF rules can be configured to block malicious requests, improving the overall security posture of your application. The Nginx Ingress Controller can also have its own security measures (e.g., rate limiting, access control), providing a layered security approach.