How do I scrape springboot actuator health?

[govardha]

Hello,

The micro services I deploy in my k8s cluster have the spring boot actuators that expose prom metrics + health(live Ness/readiness etc).

Scraping Prometheus metric seems straight forward enough(I haven’t tried it yet, but I suspect I will get it done), but is there a way to probe health. The results comes back as a json payload {status: “UP”, key=value}.

Or am I going about this the wrong way and I should instrument the micro service to directly inform the otel agent about its status?

Thank you!
G

[atoulme]

You would do this in the collector by setting up the prometheus receiver. See https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/prometheusreceiver for reference.

[govardha]

I got this working and it works like beautifully. There is a helm option in the agent section where you enable prometheus.scraping(it is set to false by default). This introduces a receiver_creator which looks for annotations that indicate whether prometheus scraping is available and the port & end point to scrape.

I introduced these annotations and then tweaked the pipeline to drop certain metrics which were not useful and the otelcol starts scraping this perfectly and ships it over to the Splunk IDX.