Test Cloud Functions (1st gen) reliability with Gremlin Failure Flags. Inject latency and errors to validate timeouts and retry logic.
First-generation Cloud Functions has been running long enough that it's considered legacy. Functions deployed on it work, cost almost nothing, and it's likely nobody has touched the code in years. That combination is exactly why it deserves attention.
These functions handle one narrow job each: process an upload, transform a record, call a partner API, etc. If they have error-handling, it was likely implemented quickly and hasn't been touched since. This often means no timeout on outbound calls, and no tolerance for dependencies that respond slowly rather than failoutright. But because these functions is small and have always worked, failure modes have never been a concern.
Gremlin gives you a way to check without touching the code's behavior in production. Add the Failure Flags sidecar, inject latency or errors on demand, and ensure your functions can recover. You'll learn whether these functions fail fast or hang until the platform kills them, and whether anything downstream notices when they stop running. Keep your first-generation Cloud Functions running reliably with Gremlin.
Dependencies: Failure Test
Simulate a failed dependency by dropping all network traffic to the dependency.
Dependencies: Latency Test
Recreate poor network conditions by delaying all network traffic to a dependency by 100ms.
Unreliable Networks - Dependencies
Simulate unreliable network conditions when communicating with dependencies by adding latency to API calls. Test whether your users are affected when dependency response times degrade.
* Failure Flags works wherever you can add the SDK to your application and run the Gremlin sidecar. Not every language and platform combination has been individually tested, and not all are officially supported. Check our compatibility documentation for what's verified, or get in touch if you don't see your runtime.
Intelligent Health Checks - GCP
Automatically monitor your Google Cloud services during testing in one-click with Intelligent Health Checks.
Avoid downtime. Use Gremlin to turn failure into resilience.
Gremlin empowers you to proactively root out failure before it causes downtime. See how you can harness chaos to build resilient systems by requesting a demo of Gremlin.
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