Explore the evolution of metric monitoring and alerting in this 31-minute conference talk from KubeCon + CloudNativeCon Europe 2021. Dive into the world of Prometheus, the leading observability tool in the CNCF ecosystem, and discover its latest features and improvements. Learn about the expanding Prometheus Ecosystem, including Alertmanager, exporters, standards, client libraries, and long-term storage projects. Gain insights into reliable monitoring and alerting with metrics through actionable examples, and explore advanced usage patterns for experienced users. Understand the inspiration behind Prometheus and its naming, and discover how to upgrade your monitoring capabilities for modern cloud environments.