How to add attributes for all (custom and autogenerated) metrics which are auto generated by Java agent and exported by Prometheus exporter.

[lokeshmavale]

Hi Team,
I have requirement to send metrics in OTLP & Prometheus format. While sending metric I want to enrich the attributes for all the metrics (custom and autogenerated).

With Auto Configure SPI, I was able to override metrics using autoConfiguration.addMetricExporterCustomizer(this::configureSdkMetricExporterProvider);

I have observed that, this exporter only has access to OTLP (push based) exporter.
How can I override Prometheus exporter without creating all new Prometheus server and registering it with auto agent using autoConfiguration.addMeterProviderCustomizer(). ?

Do we support pull based model exporter override via auto configuration?

Thanks,
Lokesh

[mateuszrzeszutek]

Hey @lokeshmavale ,

AFAIK currently there's no feature like that in the SDK. You can use the collector's attributes processor to modify the attributes though.

[lokeshmavale]

Thanks for quick response @mateuszrzeszutek, as collector's codebase is externally owned and maintained, I think that's the only above option.