Add property to control export of OTLP logs

[andrzej-man]

In Spring Boot 3.4.0-M3, OtlpLoggingConfigurations.otlpHttpLogRecordExporter is a created if OtlpLoggingConnectionDetails is created, the latter is a conditionally created if the property management.otlp.logging.endpoint is defined. It looks like the only option to disable this to not define the endpoint key.

However, it makes it a bit difficult if we have already defined the endpoint and want to disable it.

Is it possible to define an enabled toggle in a similar manner that we have for e.g. management.otlp.metrics.export? In general, it would be nice to be able to disable signal exporters in a consistent way -- thus something similar to OnEnabledTracingCondition and OnMetricsExportEnabledCondition?

[mhalbritter]

We have management.*.metrics.export.enabled, management.*.tracing.export.enabled and I think for consistency we should also add something like management.otlp.logging.export.enabled.

[nosan]

You should be able to disable the otlpHttpLogRecordExporter by setting management.otlp.logging.transport=none

[nosan]

But this property does not exist in additional-spring-configuration-metadata.json 🥲

[nosan]

Apologies @mhalbritter and @andrzej-fisglobal for the confusion. I overlooked the fact that this property maps to enum values. My apologies for the oversight.

[mhalbritter]

Don't worry, no harm done :)

[andrzej-man]

Thanks for your comment. That makes it indeed a bit easier, but still, it would be nice to have consistency among those -- what Moritz proposed.