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Walk me through everything that happens between docker pull and the image being ready to run.

A registry stores repositories, which hold manifests, which point at content-addressed blobs. Candidates who can draw that hierarchy and the auth dance around it understand every pull failure they will ever meet.

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.

A registry stores repositories, which hold manifests, which point at content-addressed blobs. Candidates who can draw that hierarchy and the auth dance around it understand every pull failure they will ever meet.

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UP NEXT ON YOUR JOURNEY
Next in this trackA developer applies a PVC and nothing happens. Walk me through dynamic provisioning and the StorageClass decisions that shape it.Next in this trackTen teams share one cluster and one team's cron job ate every node. What enforces fairness mechanically?Next in this trackDesign a canary that promotes or rolls back itself based on metrics, with no human in the loop.
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