Observability Engineering

A book-shaped table of contents for observability engineering: foundations through architecture, metrics, logging, tracing, profiling, OpenTelemetry, instrumentation, Kubernetes/cloud, data platforms, visualization, alerting, SRE integration, cost, security, platform engineering, AI-driven operations, and MAANG interview preparation — cross-linking existing prometheus/grafana-cloud/kubernetes/sre/platform-engineering notes instead of duplicating them.

1 — Dashboard Design

The three-question test for a vanity panel, why the same underlying data needs a different dashboard for different audiences, and the top-down layout that mirrors how an investigation actually drills down.

2 — SLOs & Error Budgets

SLI/SLO/SLA, the error budget as a spendable resource rather than a compliance number, burn rate as the mechanism connecting the two, and why multi-window multi-burn-rate alerting exists at all.

1 — Alerting & Alert Routing

Symptom-based vs. cause-based alerting, the noise-reduction problem (dedup, grouping, correlation), and routing/escalation — the design discipline standing between a real page and a bad one.

8 — On Call Engineering

Covers structuring on-call rotations, handoffs, and runbook discipline as an engineering practice, not just a schedule.