Correlation-Id and value in mdc with opentelemetry-java agent

[VinishKumar1]

We're using open-telemetry java agent for distributed tracing for our micro-services which adds the trace-id/span-id. Now we're trying to add a field(correlation-id) in mdc that needs to propagated to all the downstream services(using webclient and kafka) and that needs to be logged along with trace-id/span-id. Can someone help us who has worked with open-telemetry java agent to propagate the extra field(correlation-id) in the micro-services architecture with any suggestion !!!

Any code samples/examples for the same will be really helpful.

@trask @jkwatson