Câu hỏi phỏng vấn DevOps
Câu hỏi

How have you handled failed deployments?

Câu trả lời

Here is a suggested answer to the DevOps interview question "How have you handled failed deployments?":

Handling Failed Deployments

When a deployment fails, it's critical to act quickly to identify the root cause, mitigate any issues, and get the system back online as soon as possible. Here are the key steps I follow when handling a failed deployment:

1. Assess the Situation

  • Determine the scope of the failure - is it impacting the entire system or just certain components?
  • Identify any error messages or logs that provide clues about what went wrong.
  • Assess the business impact and urgency of restoring service.

2. Rollback or Rollforward

  • If the failure is isolated and the previous version is stable, perform an immediate rollback to restore service.
  • If the failure is more complex, consider rolling forward with a fix. But only if you are highly confident it will resolve the issue.

3. Investigate the Root Cause

  • Dive into the deployment logs, application logs, and monitoring data to pinpoint the root cause.
  • Reproduce the failure in a test environment if possible.
  • Determine if the issue was caused by the code, infrastructure, config...
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