Google Associate Cloud Engineer
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You want 1% of users to see a new App Engine version. What feature should you use?
Simulated
Community
RRodrigo
A
Canary deployment on GKE
B
Traffic splitting by version
C
Separate test project
D
Cloud Run gradual rollout
Explanation:
Explanation
For App Engine, the correct feature to direct a small percentage of traffic (like 1%) to a new version is Traffic splitting by version. This is a built-in App Engine feature that allows you to split traffic between different versions of your application.
Why other options are incorrect:
- A) Canary deployment on GKE: This is for Google Kubernetes Engine deployments, not App Engine.
- C) Separate test project: While you could use a separate project for testing, this doesn't achieve the goal of having 1% of users see the new version in the same production environment.
- D) Cloud Run gradual rollout: This is specific to Cloud Run services, not App Engine.
How Traffic Splitting works in App Engine:
- Deploy your new version to App Engine
- Use the
gcloud app services set-trafficcommand or the Cloud Console - Specify the traffic percentage for each version
- For example:
gcloud app services set-traffic default --splits v2=0.01,v1=0.99
This allows you to gradually roll out new versions to a small percentage of users for testing before making it available to everyone.
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