Observability and Troubleshooting
Signals that Matter: Practical Cluster Telemetry
Curate metrics, logs, and traces so on-call stays readable—without building another unused dashboard graveyard.
- Duration
- 3 weeks
- Format
- Cohort live online
- Tuition (informational)
- 980,000 KRW
We pair RED metrics with Kubernetes-native signals, teach cardinality discipline, and practice alert design tied to operator actions. Students leave with a compact observability backlog they can defend to leadership.
What is included
- Metric selection workshops with cardinality budgets
- Log pipeline hygiene for noisy workloads
- Trace sampling strategies that survive cost reviews
- Alert text templates that state impact and next steps
- kube-state-metrics interpretation drills
- Node exporter signals vs application SLO bridges
- Incident note structure aligned with post-incident learning
Outcomes
- Draft an alert set mapped to operator runbooks
- Identify three high-noise metrics to retire or relabel
- Explain telemetry gaps to engineering managers without jargon pile-ons
Lead instructor
Noah Park
Spent years trimming observability debt for multi-tenant SaaS operators.
Participant notes
-
“Cardinality session saved us from another metrics explosion.”
— Ivy
Common questions
Vendor stack?
Examples stay Prometheus-compatible; vendor-specific agents are out of scope.
What is not promised?
We do not ship production-ready Helm charts for your stack—only patterns and references.
Time per week?
Expect six to eight hours including labs and short async readings.
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