Add config for scraping Trino metrics

[breedx-splk]

Component(s)

jmx-scraper

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

Trino publishes a set of JMX metrics: https://trino.io/docs/current/admin/jmx.html

We could incorporate a configuration that would allow users to scrape these with the jmx-scraper.

Describe the solution you'd like

It would be awesome if the jmx-scraper had out-of-the-box support for scraping the Trino metrics. https://trino.io/docs/current/admin/jmx.html

[SylvainJuge]

I would suggest to only add new supported systems directly in instrumentation as we can now reuse them directly with jmx-scraper thanks to open-telemetry/opentelemetry-java-contrib#1782.

However, most of the code to test new systems is in #13392 which is not merged yet due to lack of ability to filter negative values.

In practice this does not prevent starting the fun part which is to create a yaml file and define metrics by putting it in the right location in classpath (see tests in open-telemetry/opentelemetry-java-contrib#1782).

[breedx-splk]

Thanks @SylvainJuge you make a good point about adding to instrumentation first. What do you think about us moving this issue then over to the instrumentation repo?

[SylvainJuge]

Yes, moving the issue to instrumentation would make sense here. It's probably a good idea to start working on this only once we have merged the JVM metrics PR as it provides the test infrastructure.

[SylvainJuge]

The "test infrastructure" code I war referring to in my previous comment has been merged with #13597, which means you should be able to reuse it and it should be a matter of adding a new yaml file and implementing the tests for it.