Google Professional Cloud DevOps Engineer Question 74
Single answerGoogle Cloud PlatformYour company is deploying a critical update to a customer-facing application hosted on Google Kubernetes Engine (GKE). You want to minimize the risk of introducing a faulty version into production while ensuring that a subset of users can test the new version. Which deployment strategy should you choose?
- A
Blue/Green deployment
- B
Canary deployment
- C
Rolling deployment
- D
Recreate deployment
Show answer and explanation
Correct answer: B
Explanation
Canary deployment is the best fit for this scenario as it allows you to gradually expose a subset of users to the new version while monitoring its behavior. This approach minimizes risk and provides an opportunity to detect and address issues before fully rolling out the update to all users.
- A. Incorrect.
Blue/Green deployment involves running two separate environments side by side (e.g., blue for the current version and green for the new version). While this minimizes downtime, it does not allow for gradual exposure to the new version.
- B. Correct.
Canary deployment allows exposing a small percentage of users to the new version while the majority of users continue to use the stable version. This minimizes risk and enables testing with real users in production.
- C. Incorrect.
Rolling deployment gradually replaces instances of the old version with the new version, but it does not allow control over which users get exposed to the new version.
- D. Incorrect.
Recreate deployment involves shutting down all instances of the old version and deploying the new version all at once. This approach does not minimize risk or allow for gradual testing.