https://www.infoq.com/articles/prometheus-monitor-applications-at-scale/ https://lyz-code.github.io/blue-book/devops/prometheus/prometheus_architecture/
https://epsagon.com/tools/prometheus-and-grafana-the-perfect-combo/
https://www.youtube.com/watch?v=wGD_RPxmfu8&list=PLO90w93tDS4m7v6vckyn0Ukbej2Z31_N9