[SOLVED] Using Metrics with Wildfly 28 and Prometheus and Jakarta EE Application

Using Metrics with Wildfly 28 and Prometheus and Jakarta EE Application

I'm searching a way to provide simple metrics like the "old way" with http://localhost:9990/metrics but in Wildfly 29.

With Wildfly 28 they removed the MicroProfile Metrics support and added micrometer and MicroProfile Telemetry. But both of the new subsystems seems to work as a push-principle.

I do not have a opentelemetry-collector in my stack and would like to keep it that way.

So my question:

Is there any way to create custom metrics with Wildfly 28 and prometheus?

Solution

Unfortunately, it is not currently possible to do that. If the feature is super important to you, please file an RFE on the WildFly tracker at https://issues.redhat.com. We don't have concrete plans on how to evolve that subsystem, so having requests like this is important for planning our work. If you're super-ambitious, pull requests are always welcome, and if you choose to go this route, come find me on the WildFly Zulip (https://wildfly.zulipchat.com) and I'd be happy to help you however you need through the process.