Hello and thank you again for your answer.
I indeed need to propagate the trace-ID across multiple NFs which seem impossible with header injection. Modifying the code could be a solution but I’d rather do it as a last resort because it seem like a lot of work to implement and maintain.
Im pretty sure another solution would be to use tracing tools like istio / envoy proxy that uses sidecars to add trace-id. Im currently trying to do it this way but I encounter some issues with kubernetes and that’s why I created another topic in the forum : Xxsslkey.log location with helm deployment
Thanks and have a nice day