Re: [Hawkular-dev] hawkular-agent, prometheus, openshift
> OK, I'll look more into the Prometheus protocol. That's
the part I was
> missing. It sounds like essentially we are going to be pulling metrics
> directly from the components emitting the data (rather than pulling metrics
> from the Prometheus server itself which is what I originally thought). Now
> that I think about it, really this sounds just like JMX/Jolokia endpoints
> or
> WildFly's remote DMR interface). I just have to learn more about what these
> Prometheus endpoints look like and what the data looks like over that
> protocol.
Yep, exactly. Its all about taking things from one protocol (jolokia,
prometheus, etc) and being able to send the data contained within that
protocol into Hawkular Metrics.
OK, this looks very easy to do. I just wrote up a quick PoC that shows we can have a
Prometheus protocol endpoint scraper that can pull metrics from any prom protocol
endpoint:
https://github.com/hawkular/hawkular-agent/blob/mazz/hwkagent-66-promethe...
this doesn't do much - just pulls metrics over HTTP from a prometheus protocol
endpoint URL and parses the binary data using a prometheus java client. But it shows me
it's easy (given any URL to a prometheus endpoint) to pull metrics data. We'd just
push it out to hawkular-metrics (it would work just like our JMX and DMR integrations).
So my task for next week will be to take this and integrate it into
hawkular-wildfly-agent.