Your team detected a spike of errors in an application running on Cloud Run in your production project. The application is configured to read messages from Pub/Sub topic A, process the messages, and w

Question

Options

• ADeploy the Pub/Sub and Cloud Run emulators on your local machine. Deploy the application
• BUse the gcloud CLI to write mock messages to topic A. Change the logging level in the
• CDeploy the Pub/Sub emulator on your local machine. Point the production application to your local
• DUse the Google Cloud console to write mock messages to topic A. Change the logging level in

• A
  81% (39)
• B
  2% (1)
• C
  13% (6)
• D
  4% (2)

Explanation

To safely reproduce and diagnose errors without affecting the production environment, you should use local emulators. Deploying both the Pub/Sub emulator and the Cloud Run emulator locally and running the application against them creates a fully isolated test environment. This allows you to inject mock messages and observe behavior without any risk to production data or services. Option C is dangerous because it points the live production application to a local emulator, which could disrupt production processing. Options B and D write mock messages directly to the production topic A, which could corrupt or interfere with real production data and processing.

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