Test AKS Virtual Nodes reliability with Gremlin Failure Flags. Inject latency and errors into pods to validate application-layer resilience.
Virtual nodes give Azure Kubernetes Service elastic burst capacity, and teams reach for them exactly when traffic is highest. That timing is what makes them worth testing.
The workloads landing on virtual nodes are running during your busiest periods, on infrastructure that behaves differently from the rest of your cluster, with no node available to test against. Discovering that difference during a peak is an expensive way to learn it.
Gremlin tests these pods where they actually live: in the application. Add the Failure Flags SDK to your container and you can inject latency and errors into a pod running on a virtual node, confirming it degrades the same way its counterparts on standard node pools do. If burst capacity handles a failing dependency differently, you want that answer during a quiet afternoon rather than a product launch.
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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