Get up to speed with Prometheus, the metrics-based monitoring system used in production by thousands of organizations. This updated edition provides site reliability engineers, Kubernetes administrators, and software developers with a hands-on introduction to the most important aspects of Prometheus, including dashboarding and alerting, direct code instrumentation, and metric collection from third-party systems with exporters. Prometheus server maintainer Julien Pivotto and core developer Brian Brazil demonstrate how to use the system for application and infrastructure monitoring. You'll learn the Prometheus setup, Node Exporter, and Alertmanager, and discover how to use these tools for application and infrastructure monitoring. You'll understand why this open source system has continued to gain popularity. Monitor your infrastructure with Node Exporter and use collectors for network, disks, and pressure metrics, Discover where and how much instrumentation to apply to your application code, Learn about Grafana, a popular tool for building dashboards, Gain views of your machines and services using discovery, including the new HTTP SD mechanism, Use Prometheus with Kubernetes and examine exporters you can use with containers, Explore Prometheus's improvements and features, including trigonometry functions, Learn how Prometheus supports security features including TLS and basic authentication