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Visualize Prometheus metrics

Requirements

Run the docker-compose of the Controller.
Run the docker-compose of prometheus.

Check the metrics

To check the raw metrics hit this url in your browser: http://:1880/api/actuator/prometheus
To check the metrics though GUI, with some graphs, hit: http://:9090

Visualize metrics in Grafana

Access grafana in: http://:3000/
Give the default username and password: "admin" (for both).
Specify the new password.
Then, add a "Prometheus" datasource.
Specify the prometheus url: http://:9090
Save the datasource.
Go to "dashboards", click "import", add the number "12900" in the input and click "load" and "next".
Then select the "prometheus" datasource and click "import".
Enjoy the graphs.