Discover service.version attribute from Spring Boot's build-info.properties file

[philsttr]

Is your feature request related to a problem? Please describe.

Not really a "problem", but just a minor annoyance that I have to find some alternative way to specify the service.version attribute, even though the metadata is available in the application's jar.

Describe the solution you'd like

The Spring Boot maven/gradle plugins provide a way to generate a build information for Spring Boot applications. The plugins generate a file named META-INF/build-info.properties. For example, the generated file might look like the following:

build.artifact=example-app
build.group=com.example
build.name=example-app
build.time=2023-08-24T12\:04\:36.605Z
build.version=1.0.0

Notice the build.version property.

It would be great if the spring-boot-resources instrumentation defined a ResourceProvider that would set the service.version resource attribute from the build.version property found in the META-INF/build-info.properties file.

This would make version discovery automatic for Spring Boot applications that already include build info.

Describe alternatives you've considered

alternative 1:
Manually set the service.version resource attribute.

alternative 2:
A more-generic ResourceProvider could be created that takes the name of a class as input, and then retrieves its version information via clazz.getPackage().getImplementationVersion(), which pulls info from its jar's META-INF/MANIFEST.MF.

This alternative is not as "automatic" as using the Spring Boot build-info.properties file, since it requires additional input. But it would support any Java application (assuming the metadata is in its manifest). Not just Spring Boot apps.

Additional context

No response

[mateuszrzeszutek]

It would be great if the spring-boot-resources instrumentation defined a ResourceProvider that would set the service.version resource attribute from the build.version property found in the META-INF/build-info.properties file.

That's a great idea 👍
We would welcome a contribution that implements that.

[Hayanesh]

Hi @mateuszrzeszutek, Please find the Pull Request for this issue.