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Answer: Deploy the canary release to Google Kubernetes Engine with Anthos Service Mesh. Use traffic splitting to direct 10% of user traffic to the new version based on the user-agent header configured in the virtual service.
The question requires a solution that meets three acceptance criteria: (1) directing traffic from Android devices to an Android-specific microservice, (2) supporting arbitrary percentage-based traffic splitting, and (3) enabling continuous testing of multiple microservice versions. Option D is the best fit because: - **Google Kubernetes Engine (GKE) with Anthos Service Mesh** provides robust traffic management capabilities. Anthos Service Mesh (based on Istio) allows fine-grained control over traffic routing using headers like `user-agent`, which can identify Android devices and route them to a specific microservice, satisfying criterion 1. - Anthos Service Mesh supports **arbitrary percentage-based traffic splitting** (e.g., 10% to a canary release) through VirtualService configurations, meeting criterion 2. - The **canary deployment strategy** in GKE enables continuous testing of multiple microservice versions by gradually shifting traffic, fulfilling criterion 3. Option A fails criterion 1 because Cloud Run's traffic splitting relies on revision tags, not headers like `user-agent`, making it unable to target Android devices specifically. Option B uses App Engine with IP-based routing, which lacks header-based routing for Android and doesn't support arbitrary traffic splitting as effectively. Option C uses Compute Engine with Anthos Service Mesh but misses explicit header-based routing for Android; while ASM can configure headers, the option doesn't specify it, and Compute Engine is less optimal for container orchestration compared to GKE.
Author: LeetQuiz Editorial Team
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Which Google Cloud deployment strategy and platform should you choose for migrating an on-premises containerized web application, given the following requirements:
A
Deploy the canary release of the application to Cloud Run. Use traffic splitting to direct 10% of user traffic to the canary release based on the revision tag.
B
Deploy the canary release of the application to App Engine. Use traffic splitting to direct a subset of user traffic to the new version based on the IP address.
C
Deploy the canary release of the application to Compute Engine. Use Anthos Service Mesh with Compute Engine to direct 10% of user traffic to the canary release by configuring the virtual service.
D
Deploy the canary release to Google Kubernetes Engine with Anthos Service Mesh. Use traffic splitting to direct 10% of user traffic to the new version based on the user-agent header configured in the virtual service.