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Prometheus cheat sheet & developer notes

Prometheus cheat sheet and 1 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Prometheus

Prometheus Essentials

Prometheus Essentials. Prometheus is an open-source monitoring system built around a time-series database and a pull-based collection model. Instead of your services pushing metrics somewhere, Prometheus periodically scr…

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Kubernetesdevops

From Zero to Kubernetes Expert

This is my living study map. Not a course, not a tutorial series a structured path I'm actually following while working full-time. The rule: understand each layer before touching the next one. Each…

Apr 7, 2026
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Concepts to know for Prometheus

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Observability: Logs, Metrics and TracesWhat logs, metrics and traces each answer, why label cardinality breaks metrics, how a trace ID crosses services, and how SLOs turn signals into alerts.Intermediate·15 min

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