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Level Up · Part 3 · Bilik Kawalan

Monitoring & Observability map

The control room. Counters, a diary and one order followed end to end.

Every world is open. O1 needs no tools. O2 and O3 use Prometheus 3.

Tip: best after Kubernetes, World K5. Not a lock. Start any time.

World O1

The Control Room

Why we watch, what to watch, and how to be on call kindly.

8 lessons · 0 of 8 done

8 lessons
  1. Why watch at all?3 min
  2. Metrics, logs and traces4 min
  3. The four golden signals4 min
  4. RED and USE4 min
  5. SLIs, SLOs and error budgets5 min
  6. Dashboards or alerts?3 min
  7. On call, kindly3 min
  8. Prometheus, Grafana, OpenTelemetry: who does what4 min
  9. Boss challenge: Pick the signals

World O2

Counters

Prometheus collects the numbers. PromQL asks questions about them.

9 lessons · 0 of 9 done

9 lessons
  1. Scraping and targets4 min
  2. Exporters: node and blackbox4 min
  3. Counter, gauge, histogram, summary5 min
  4. Labels and cardinality4 min
  5. Instant and range vectors4 min
  6. rate() and increase()5 min
  7. Add them up: sum by4 min
  8. Histograms and histogram_quantile5 min
  9. Recording rules3 min
  10. Boss challenge: Count the orders

World O3

Alarms & Screens

Alerts that matter and dashboards people read.

8 lessons · 0 of 8 done

8 lessons
  1. Alert rules: for, labels, annotations5 min
  2. Alertmanager: route, group, silence5 min
  3. Alert on symptoms, not causes3 min
  4. Grafana dashboards and panels4 min
  5. Variables and templating4 min
  6. SLO burn-rate alerts5 min
  7. Runbooks3 min
  8. Alert fatigue3 min
  9. Boss challenge: Quiet the pager

World O4

The Diary & One Order

Logs tell the story. Traces follow one order across services.

8 lessons · 0 of 9 done

8 lessons
  1. Structured logs4 min
  2. Loki and LogQL basics5 min
  3. OpenTelemetry: SDK, collector, OTLP5 min
  4. Traces and spans4 min
  5. Follow one order across services5 min
  6. Exemplars and correlation4 min
  7. Incidents: who does what4 min
  8. Blameless postmortems3 min
  9. Capstone mission 9: Watch Kedai KancilMission 95 min
  10. Boss challenge: Find the slow step