Using Prometheus as the metrics backend

Lightbend Telemetry can report metrics to Prometheus new tab using a backend plugin integrated with the Prometheus JVM client new tab .

The following is the core Cinnamon Prometheus dependency that you will need to add to your build tool configuration, together with the HTTP server exporter new tab :

Java

pom.xml

<!-- Cinnamon Prometheus core dependency -->
<dependency>
    <groupId>com.lightbend.cinnamon</groupId>
    <artifactId>cinnamon-prometheus</artifactId>
</dependency>
<!-- Cinnamon Prometheus HTTP server dependency -->
<dependency>
    <groupId>com.lightbend.cinnamon</groupId>
    <artifactId>cinnamon-prometheus-httpserver</artifactId>
</dependency>

Scala

build.sbt

libraryDependencies ++= Seq(
  Cinnamon.library.cinnamonPrometheus,
  Cinnamon.library.cinnamonPrometheusHttpServer)

After you have made that alteration, enable the HTTP server exporter using the following configuration:

src/main/resources/telemetry.conf

cinnamon.prometheus {
  exporters += http-server
}

Metrics from Prometheus will now be available at the configured server location. If you are using the defaults, the location is http://localhost:9001/metrics.

See the Full Telemetry documentation new tab for details and references regarding Prometheus configuration.