Add Spring Cloud Task support

[marcingrzejszczak]

Root span would start and be reported at the point of the TaskExecutorListener. The name of the span would be spring.application.name.

Each of the CommanLineRunner or ApplicationRunner executions would be a span. The name of the span would be the bean name.

cc @mminella

[cppwfs]

We can add this as a feature in 2.4. Thoughts @mminella .

[marcingrzejszczak]

We can add it in Sleuth that's not a problem (I think we even have to do it cause otherwise we could have a release cycle Task depending on Sleuth that depends on a lot of other things). Or we would have to push Task after Sleuth if Task is not used by any other projects.

I've created this issue after talking to @mminella and we're gathering all feedback here.

[cppwfs]

That makes sense

[marcingrzejszczak]

Done via 2fca60a

[abccbaandy]

ok, so ApplicationRunner or CommandLineRunner will support in spring cloud 2021.0.0, and spring boot 2.6.X will support spring cloud 2021.0.0, right?

[marcingrzejszczak]

that's the plan.