Playbooks¶
Playbooks are practical, opinionated operator guides for decisions that are bigger than day-to-day news. Use this section for topics like HA architecture, multi-cluster failover design, upgrade strategy, and production reliability patterns.
| Date | News | Summary |
|---|---|---|
| 2026-03-12 | Why Every Pod Gets a Real IP: The Kubernetes Flat Network Model, CNIs, and Ingress Controllers | Kubernetes enforces a simple rule: every Pod can reach every other Pod directly, without NAT. This single constraint drives the entire networking architecture - from CNI plugin selection to ingress controller design. |
| 2026-03-11 | How Traffic Actually Flows in Kubernetes: Services, kube-proxy, and Cloud Load Balancers | A Kubernetes Service is not a load balancer - it is a routing abstraction. Understanding the three layers that actually move traffic (node dataplane, cloud load balancer, application connections) explains most real-world… |
| 2026-03-10 | True HA in Kubernetes: Why Multi-Zone Alone Isn't Enough | Multi-zone clusters remove the zone-failure risk but create a false sense of security. Real high availability requires coordinating PDBs, topology spread constraints, affinity rules, probes, graceful shutdown, and… |
| 2026-03-10 | Why Kubernetes Scheduling Uses Requests, Not Limits | Kubernetes schedules Pods based on resource requests, not limits. Understanding this distinction explains noisy neighbor problems, unexpected autoscaling behavior, and wasted cluster capacity, and how to fix them. |