How do you handle failures in a DevOps environment?
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Quick Answer
Assume failure is normal: build in fast rollback and automated recovery, limit blast radius (canary, circuit breakers), practice chaos engineering, and run blameless postmortems to turn incidents into systemic improvements.
Detailed Answer
Resilience is designed, not hoped for: redundancy and health checks for automatic recovery, progressive delivery to contain bad releases, feature flags to disable misbehaving features instantly, and observability to detect fast. After the fact, blameless postmortems with tracked action items prevent recurrence and build a learning culture.
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Interview Tip
Combine prevention/containment (canary, flags, rollback) with learning (blameless postmortems) — both halves matter.
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