Follow-up · depth 2
What metrics prove Artifact Promotion (Build Once) is healthy in prod?
What metrics prove Artifact Promotion (Build Once) is healthy in prod?
Answers use simple, clear English.
Audio N/AQuick interview answer
Prove Artifact Promotion (Build Once) is healthy with latency (p50/p95/p99), error/saturation rates, and queue/event-loop lag — not just CPU. Context: At Senior depth: start with the problem, then mechanism, then a short example. Build a versioned image/package once in CI; promote the same digest through staging→prod.
Detailed answer
Production health signals for Artifact Promotion (Build Once): • Latency: p50/p95/p99 of the critical path that uses Artifact Promotion (Build Once). • Errors: failure rate, timeouts, and retry storms. • Saturation: queue depth, event-loop delay, thread/pool utilization. • Business SLIs: request success and user-visible freshness where relevant. Trade-off lens: Pros: What you tested is what you ship. Cons: Needs good registry + digest pinning. Explain thresholds + alerts, then how you triage. Parent context: At Senior depth: start with the problem, then mechanism, then a short example. Build a versioned image/package once in CI; promote the same digest through staging→prod.
Full explanation
Good answers name measurable signals and what “bad” looks like for Artifact Promotion (Build Once). Build a versioned image/package once in CI; promote the same digest through staging→prod. Never rebuild for prod with different flags.
Follow-up questions
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Parent context — Artifact Promotion (Build Once)
At Senior depth: start with the problem, then mechanism, then a short example. Build a versioned image/package once in CI; promote the same digest through staging→prod.
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