How would you answer an interview scenario involving releases and rollback in Helm?

For an interview scenario involving releases and rollback, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. A Helm release is an installed chart instance whose revision history can support upgrades and rollback. In this scenario, a deployment introduces an incompatible database change and then fails. Explain why a simple Helm rollback may not be enough. For production, design backward-compatible application and schema changes, test rollback, and treat database recovery separately from manifest rollback. I would then explain the main alternatives and tradeoffs, identify likely failure modes, and describe how I would validate the solution through testing, observability, security controls, and recovery or rollback planning.