Prometheus

A book-shaped table of contents for Prometheus: monitoring foundations through architecture, data model, instrumentation, service discovery, PromQL, alerting, production operation, PCA certification, and MAANG interview prep — cross-linking existing notes instead of duplicating them.

3 — Deep Dive Discussions

Interview-framed answers to the 'why' questions candidates get asked about Prometheus — why pull, why not SQL, why labels — honestly scoped to what this book actually has source material for.

1 — Prometheus System Design

Designing Prometheus-based monitoring at scale — multi-region topology, HA design, cost optimization, and capacity planning as a system-design interview prompt.

4 — Real Production Architectures

Worked case studies of real Prometheus deployment shapes — Kubernetes-native, multi-cluster, hybrid-cloud, multi-tenant, large-enterprise, and SaaS monitoring platform architectures.

3 — Prometheus in the Observability Ecosystem

Where Prometheus sits in the CNCF landscape — its pull-based cloud-native origins, its companion projects, and where this book does (and doesn't yet) connect it to the wider stack.