Test Azure App Service reliability with Gremlin Failure Flags. Inject latency and errors into your application to validate dependency handling.
Azure App Service has been around long enough to accumulate a particular kind of workload: applications deployed years ago that still work and haven't been meaningfully reviewed since. The platform's stability is what allowed that, and it's what makes the situation risky.
These applications usually predate the team now responsible for them. Their dependency handling reflects whenever they were written, which often means no timeouts, synchronous calls throughout, and retry logic that assumes failures are brief. None of it has been tested, because the application has never given anyone a reason to look.
Add Failure Flags to your application code and inject latency or errors against a specific dependency. The results function as documentation your team can actually rely on: this is what happens when the database is slow, and this is how long recovery takes.
Inheriting an application you didn't write is common. Inheriting one whose failure behavior nobody has ever observed is a choice.
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 - Azure
Automatically monitor your Azure 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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