Tech › Kubernetes
5 posts
What the three AccessModes really mean, the Deployment + RWO PVC trap, the PV lifecycle and Reclaim Policy — the problems you actually run into when operating PV/PVC.
From the Kubernetes volume concept and Volume types like emptyDir and hostPath, to the PV/PVC architecture that decouples storage from the Pod lifecycle — the first post in the storage series.
From kubectl apply to a running container — tracing step by step how the API Server, Controller Manager, Scheduler, and kubelet each play their part in placing and running a Pod.
Who assigns Pod IPs, and how do Pods talk to each other? Following the packet flow through CNI, veth pairs, the Linux bridge, cross-node routing, and CoreDNS service discovery.
Tracing the full path of an external HTTP request through LB → Ingress Controller → Service → Pod — covering kube-proxy and iptables, conntrack, and troubleshooting commands for every hop.