What’s the difference between Ingress and LoadBalancer services in Kubernetes?

LoadBalancer creates a public IP for a single service, while Ingress uses smart routing to expose multiple services through a single entry point, making it more scalable.

How do you install an NGINX Ingress Controller in Kubernetes?

You can install the NGINX Ingress Controller using Helm charts by adding the ingress-nginx repository, deploying it into a namespace, and configuring external access through a LoadBalancer.

How do Ingress Controllers scale in Kubernetes?

Ingress Controllers scale horizontally using Kubernetes Horizontal Pod Autoscaler (HPA), LoadBalancer integration across zones, and smart connection draining to handle rolling updates smoothly.

What’s different about SIP traffic compared to HTTP traffic in Kubernetes?

SIP traffic involves real-time session negotiation, dynamic port usage, and persistent connections, making it incompatible with standard HTTP-focused Ingress Controllers without customization.

Can multiple Ingress Controllers run in the same Kubernetes cluster?

Yes. Kubernetes supports multiple Ingress Controllers using IngressClass, allowing different protocols (HTTP, SIP, WebSocket) to be routed separately for maximum traffic optimization.

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