At Banco Itaú in Brazil, 1.3 billion Prometheus metrics are ingested daily. To make sense of this amount of data, Itaú’s 12,000 engineers use Grafana every day. In this session, Ana Paula Genari Martin from Itaú’s SRE team will share how they use Grafana to observe all of the organization’s AWS services, building traffic lights and alerts to easily see the health of its infrastructure – and even let AWS know that they might have a problem.