Our team wants to use Istio’s content-based routing and wonders how to neatly propagate the “contents” needed for routing in our code. (For example, ‘end-user’ HTTP header in bookinfo example.)
In my guess, it could be done by something similar to propagating the headers needed for OpenTracing.
We use HTTP for all requests and our services will be written in Java or Node.
Thanks in advance for your answers