Ingress Controller Setup
The ingress controller is how external traffic enters your Kubernetes cluster. We deploy and configure ingress controllers with proper TLS termination, routing rules, rate limiting, and observability — the networking layer your applications depend on but shouldn't have to think about.
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Controller Selection
Nginx Ingress Controller for standard HTTP routing with broad community support. Traefik for auto-discovery and middleware chains. Istio Gateway for service mesh integration and advanced traffic management. AWS ALB Ingress Controller for native AWS integration. We deploy the controller that matches your traffic patterns — high-throughput APIs need different tuning than web application frontends.
TLS & Certificate Management
cert-manager automates certificate issuance from Let's Encrypt, Vault, or your internal CA. Certificates get provisioned automatically when Ingress resources are created. Wildcard certificates reduce issuance frequency for multi-subdomain deployments. TLS secrets get rotated before expiry without manual intervention. The ingress controller reloads certificates without dropping connections.
Routing & Traffic Management
Ingress resources define routing rules: host-based, path-based, and header-based routing to backend services. Annotations configure timeouts, body size limits, and redirect rules per route. Canary annotations or traffic splitting CRDs enable progressive rollouts. External-DNS automatically creates DNS records for new Ingress resources — deploy a service, get a DNS name.
Observability & Scaling
The ingress controller exports Prometheus metrics: request rate, latency, error rate, and active connections per upstream. Grafana dashboards show traffic patterns and error rates per service. Access logs feed into your log aggregation system for debugging. HPA scales the ingress controller based on active connections or request rate — no single-pod bottleneck during traffic spikes.
Why Anubiz Engineering
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