expert★ EssentialNewGoogleRed HatDatadog

Walk me through what the kubelet does between PodScheduled and a running container. Why do nodes flap NotReady while pods keep serving?

The kubelet is a local reconcile loop with its own event stream, probe workers and eviction brain. Staff-level candidates can narrate it and explain why Ready status can reflect either reported health failure or missing heartbeats.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

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UP NEXT ON YOUR JOURNEY

Next in this trackEvery Kubernetes pod runs a pause container nobody deployed. Why does it exist?Next in this trackYour control plane pods were never scheduled by the scheduler. Explain static pods and why kubeadm leans on them.Next in this trackWe replaced Docker with containerd on every node. What did we actually gain, and what runs underneath now?

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