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Our managed cluster hits end of support in six weeks. Walk me through how you would upgrade it without an incident.

Upgrades look like rolling restarts right up to the morning the CNI stops talking to the new kubelet. The scored answer is ordering, skew policy, and addon sequencing, not courage under pressure.

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.

Upgrades look like rolling restarts right up to the morning the CNI stops talking to the new kubelet. The scored answer is ordering, skew policy, and addon sequencing, not courage under pressure.

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UP NEXT ON YOUR JOURNEY

Next in this trackA bad helm delete wiped half our objects. You keep telling me we have backups: what comes back, and what doesn't?Next in this trackFive teams share our platform and two are regulated. Where do you draw the tenancy line: namespaces, separate clusters, or vclusters?Next in this trackEvery pod carries a credential to our API server. How does service account authentication actually work, and how would you lock it down?

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