Explains how traffic reaches and moves between pods — Services (ClusterIP/NodePort/LoadBalancer), Ingress and controllers, cluster DNS, NetworkPolicy default-deny, and debugging selector mismatches or empty endpoints. Use this whenever the user asks why a Service has no endpoints, why a request 502s
Explains how traffic reaches and moves between pods — Services (ClusterIP/NodePort/LoadBalancer), Ingress and controllers, cluster DNS, NetworkPolicy default-deny, and debugging selector mismatches or empty endpoints. Use this whenever the user asks why a Service has no endpoints, why a request 502s inside the cluster, how to expose an app externally, or how to write a NetworkPolicy. For readiness