Google Cloud Professional Cloud Security Engineer Practice Exam

What is the recommended process to update running containers in Google Kubernetes Engine?

1. Stop and restart the whole cluster

2. Update application code, build a new image, and redeploy

3. Make minor changes and apply them directly

4. Only update images if critical changes are made

The correct answer is: Update application code, build a new image, and redeploy

The recommended process to update running containers in Google Kubernetes Engine involves updating the application code, building a new image, and redeploying the updated image. This approach aligns with best practices in container orchestration and ensures that changes are properly versioned and managed. When you update the application code and build a new image, you ensure that the changes are integrated into a coherent and tested version of the application. Redeploying the new image allows Kubernetes to manage the rollout process, which includes updating the pods to use the latest version of the image. This minimizes downtime and leverages Kubernetes' capabilities to perform rolling updates, ensuring that the application remains available while updates are deployed. This method also provides traceability and control over versioning, making it easier to roll back to a previous version if necessary. By following this structured update process, you maintain a clear separation between code changes and deployment, which is vital for maintaining application stability and reliability in a production environment.