How would you answer an interview scenario involving certificate management in Ingress?

For an interview scenario involving certificate management, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. Certificate management automates issuing, renewing, and attaching TLS certificates to ingress endpoints. In this scenario, a certificate expires every ninety days. Explain how you would eliminate manual renewal work. For production, use an automated issuer, secure private keys, monitor renewal failures, and test certificate rotation. 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.