Prometheus Monitoring and Alerting

Overview

Prometheus is a powerful open-source monitoring and alerting system designed for reliability and scalability in cloud-native environments. Built for multi-dimensional time-series data with flexible querying via PromQL.

Architecture Components

• Prometheus Server: Core component that scrapes and stores time-series data with local TSDB
• Alertmanager: Handles alerts, deduplication, grouping, routing, and notifications to receivers
• Pushgateway: Allows ephemeral jobs to push metrics (use sparingly - prefer pull model)
• Exporters: Convert metrics from third-party systems to Prometheus format (node, blackbox, etc.)
• Client Libraries: Instrument application code (Go, Java, Python, Rust, etc.)
• Prometheus Operator: Kubernetes-native deployment and management via CRDs
• Remote Storage: Long-term storage via Thanos, Cortex, Mimir for multi-cluster federation

Data Model