Observability
Metrics, logging, tracing, alerting
- 00 Observability — Roadmap Logs with journald, metrics with Prometheus and Grafana, traces with Jaeger and OpenTelemetry. beginner 3 min →
- 01 The Three Pillars of Observability Logs, metrics, and traces — what each tells you, where each falls short, and how they work together to answer 'what's broken and why.' beginner 8 min →
- 02 Structured Logging JSON logs, log levels, correlation IDs, log aggregation with Loki — building logs you can actually search in production. beginner 10 min →
- 03 Prometheus & Grafana Instrumenting applications, writing PromQL, building dashboards, and alerting on what actually matters. intermediate 12 min →
- 04 Distributed Tracing OpenTelemetry instrumentation, trace propagation across services, Jaeger, and using traces to find what logs and metrics can't. intermediate 11 min →
- 05 Alerting & On-Call Alerts that fire when users are impacted, not when metrics twitch — SLO-based alerting, runbooks, and on-call practices that don't burn people out. intermediate 9 min →