Demo service

Overview

The demo service is a very simple spring boot service which exports several metrics - out-of-the-box (via micrometer) and custom. The service might be imported your favourite IDE and explored and/or started.

Interesting metrics

The following metrics are discussed and of interest:

demoservice_heart_beat_total{beat="beat1"}
demoservice_heart_beat_total{beat="beat2"}
demoservice_gauge

logback_events_total{level="error"}
logback_events_total{level="warn"}
logback_events_total{level="info"}
logback_events_total{level="debug"}
logback_events_total{level="trace"}

Endpoints

The demo service exposes several endpoints described below.

• Prometheus - the service metrics is exported here, prometheus collects this data.
• Error log - logs jprime in the error log.
• Warning log - logs jprime in the warning log.
• Echo - echoes everything which is POST-ed in the logs.