This is a practical comparison based on real production use, not vendor marketing.
Quick Comparison
| Feature | Nginx Ingress | Traefik |
|---|---|---|
| Configuration | Annotations + ConfigMap | CRDs (IngressRoute) |
| Auto-discovery | No | Yes (K8s, Docker, Consul) |
| Let’s Encrypt | External (cert-manager) | Built-in ACME |
| Dashboard | No | Built-in web UI |
| Middleware | Via annotations | CRD-based (composable) |
| Performance | Excellent (battle-tested) | Very good |
| TCP/UDP | Supported | Supported |
| Gateway API | Supported | Supported |
When to Use Nginx Ingress
- Battle-tested: Most widely deployed Kubernetes ingress controller
- Performance: Handles very high traffic volumes with predictable latency
- Familiarity: If your team already knows Nginx configuration
- Annotations: Rich set of annotations for rate limiting, rewrites, SSL termination
When to Use Traefik
- Auto-discovery: Traefik automatically discovers services from Kubernetes, Docker, and more
- Built-in ACME: Automatic Let’s Encrypt certificates without cert-manager
- Middleware: Composable middleware for auth, rate limiting, compression via CRDs
- K3s default: Traefik is the default ingress for K3s/Rancher
- Dashboard: Built-in monitoring UI
My Recommendation
Use Nginx Ingress for large-scale, high-traffic production clusters where stability is paramount. Use Traefik for dynamic environments where auto-discovery and built-in TLS are valuable. Both are excellent. Also consider the Kubernetes Gateway API — both support it, and it is the future of ingress in Kubernetes. Book a consultation to architect your ingress layer.
