Prometheus Has a Free Open-Source Monitoring System

Prometheus is a free, open-source systems monitoring and alerting toolkit. It is the standard for cloud-native monitoring. What Is Prometheus? Prometheus collects metrics from your services and stores them as time series data. Combined with Grafana, it creates a powerful monitoring stack. Key features: Pull-based metrics collection PromQL query language Multi-dimensional data model Built-in alerting (Alertmanager) Service discovery No external dependencies CNCF graduated project Thousands of exporters available Quick Start docker run -d -p 9090:9090 \ -v prometheus-data:/prometheus \ prom/prometheus Dashboard at http://localhost:9090 . Monitor Anything Exporters available for: Node (Linux/system metrics) MySQL, PostgreSQL, MongoDB, Redis Nginx, Apache, Traefik Docker, Kubernetes AWS, GCP, Azure Custom apps (client libraries for every language) PromQL # CPU usage rate rate(node_cpu_seconds_total{mode!="idle"}[5m]) # HTTP request rate rate(http_requests_total[1m]) # 95th percentile laten