Kubernetes Ingress Controller Selection and Configuration
Overview Kubernetes Service provides Layer 4 load balancing, but in production, most web applications need Layer 7 routing capabilities: domain-based virtual hosting, path-based routing, TLS termination, and canary deployments. Ingress is K8s’s abstraction for Layer 7 routing, and the Ingress Controller is the concrete implementation of this abstraction. Choosing an Ingress Controller is not a small decision—it sits at the entry point of all external traffic. A wrong choice or misconfiguration can impact the availability of the entire cluster’s services....