Part 2. Prometheus Architecture
A deeper look at what Prometheus offers and how it works: the data model, PromQL, pull-based scraping, Pushgateway, exporters and Alertmanager.
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Part 1. Prometheus and the Story of the Trident
Three sides of Prometheus worth exploring: a time series database, monitoring and alerting, and a query language with Grafana — like the three prongs of a trident.