Cloud Infrastructure & DevOps

Prometheus

Open-source metrics and alerting toolkit — CNCF graduated standard for pull-based infrastructure monitoring.

Free
Pricing Tier
Medium
Learning Curve
1–2 weeks for Kubernetes cluster
Implementation
small, medium, large, enterprise
Best For
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Use when

Any Kubernetes-heavy environment wanting cloud-native metrics without a SaaS lock-in; the lingua franca of modern infra monitoring.

Avoid when

Teams without capacity to run Prometheus-at-scale — long retention and HA require meaningful ops effort or a managed service.

What is Prometheus?

Prometheus is the CNCF graduated metrics system that became the de facto standard for Kubernetes monitoring. Pull-based scraping, a powerful query language (PromQL), and built-in Alertmanager make it the baseline observability tool in most cloud-native stacks. Long-term storage and global views require companion projects: Thanos, Cortex, or Mimir. Pairs naturally with Grafana for dashboards.

Key features

Pull-based scraping model
PromQL query language
Exporters for every common system
Alertmanager for routing and silencing
Service discovery integrations

Integrations

KubernetesGrafanaAlertmanagerPagerDuty
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