Read this tutorial on Signadot docs .

Sandboxes route a request to the right version of a service by its routing key , which travels in request headers. A Redis stream breaks that chain: nobody calls a consumer, it reads entries on its own. So the routing key has to travel inside each stream entry, and every consumer, baseline and sandboxed alike, has to decide whether an entry is meant for it.

This tutorial deploys a small Python app to your Kubernetes cluster. A producer appends messages to the Redis stream demo:messages , and a consumer reads the stream and calls a notifier.…