Feature Request - Default value for OTEL_SERVICE_NAME

[amoscatelli]

When using otel registry, OTEL_SERVICE_NAME should fall back to application name, if not provided in any other means.

If I don't specify OTEL_SERVICE_NAME I see this in NewRelic :

Instead I think this should behave like described in opentelemetry quarkus integration :
https://quarkus.io/guides/opentelemetry

What do you think ?

[amoscatelli]

Here :

quarkus-micrometer-registry/micrometer-registry-otlp/runtime/src/main/java/io/quarkiverse/micrometer/registry/otlp/OtlpConfig.java

Line 73 in 53fa22d

* Defaults to empty. If not set it tries to use OTEL_RESOURCE_ATTRIBUTES and OTEL_SERVICE_NAME to automatically

But if OTEL_SERVICE_NAME is not set, it should fall back to ${quarkus.application.name}

[amoscatelli]

@ebullient if you agree I can make a PR about this ...

Let me know
Thank you

[ebullient]

PRs are always welcome. ;)