Dashboards and Alerts
Build the everyday dashboard with one row per golden signal, add an alert on api ERROR log lines, and trigger it on purpose to watch it fire.
Build the everyday dashboard with one row per golden signal, add an alert on api ERROR log lines, and trigger it on purpose to watch it fire.
Watching systems every day and during a load test, with Grafana, Alloy, Prometheus and Loki against the Pizza Playground.
Walk through the Alloy config block by block, start Alloy with the right mounts, and check that container metrics and logs reach Prometheus and Loki.
Start Grafana on port 3001, log in, connect the Prometheus and Loki data sources, and check both in Explore.
Start Loki in Docker on the playground network and check that it is ready to receive container logs.
The four tools used here (Alloy, Prometheus, Loki, Grafana), what each one does, how data moves between them and what we can see without changing the app.