How to inject trace baggage/tags into MDC

[moreirajo]

Hi,

I have a spring boot app using spring cloud sleuth otel version 1.1.0-M6 and I want to add the trace baggage to MDC so my logs (sl4j) can print that key.
It is worth noting that my app is reactive (webflux).

I tried:

@Autowired private org.springframework.cloud.sleuth.Tracer tracer;
...
tracer.createBaggage("my-key", "some-value");

application.yaml:

spring:
  sleuth:
    baggage:
      correlation-fields:
      - my-key

It works when I create the baggage for a couple of logs but then stop working.

Am I missing something?

[mateuszrzeszutek]

Hey @moreirajo ,
Have you tried opening an issue in the Sleuth repo?

[moreirajo]

Hi, yes I did. Please anyone with input on this answer in spring-projects-experimental/spring-cloud-sleuth-otel#116. Thanks.

[moreirajo]

This is more related with Sleuth.
Please anyone with input on this answer in spring-projects-experimental/spring-cloud-sleuth-otel#116.
Thanks.