Explanation:
The correct answer is C because the image can be directly updated using the kubectl command, and Kubernetes Engine performs a rolling update. This method allows for updating the application with minimal downtime.
For more details, refer to the GCP documentation on Kubernetes Engine Rolling updates.
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You have an application deployed on Kubernetes Engine using a Deployment named echo-deployment. The deployment is exposed using a Service called echo-service. You need to perform an update to the application with minimal downtime to the application. What should you do?
A
Update the service yaml file with the new container image. Use kubectl delete service/echoservice and kubectl create –f
B
Use the rolling update functionality of the Instance Group behind the Kubernetes cluster
C
Use kubectl set image deployment/echo-deployment
D
Update the deployment yaml file with the new container image. Use kubectl delete deployment/echo-deployment and kubectl create –f