Observability¶

Portal | Tag Cloud | 53 assets across 16 topics

Prometheus, Grafana, Loki, alerting, tracing, OpenTelemetry, SLOs

Core Skills (Tier 1)¶

Start here — these are the topics a mid-level engineer uses weekly.

Prometheus — Topic Pack ×7, Exercise Set, Lab, Drill ×3, Scenario ×2, Runbook ×2, Assessment ×2, Reference ×2, Case Study ×4
Grafana — Topic Pack ×3, Lab, Runbook, Assessment, Reference ×2
Monitoring Fundamentals — Topic Pack ×2
Monitoring Migration — Topic Pack
Synthetic Monitoring — Topic Pack

Asset	Topics	Level	Time	Status
Alerting Rules	Alerting Rules, Prometheus	L2	4h	solid
Capacity Planning	Prometheus	L2	4h	solid
Continuous Profiling	Continuous Profiling	L2	4h	solid
Linux Logging	Logging	L1	4h	solid
Log Pipelines	Log Pipelines, Logging, Loki	L2	5h	solid
Mental Models (Core Concepts)	Observability Deep Dive	L0	4h	solid
Monitoring Fundamentals	Grafana, Monitoring Fundamentals, Prometheus	L1	5h	solid
Monitoring Migration (Legacy to Modern)	Grafana, Monitoring Fundamentals, Monitoring Migration	L2	5h	solid
Observability Deep Dive	Grafana, Loki, Prometheus	L2	6h	solid
On-Call	Alerting Rules	L2	1h	stub
OpenTelemetry	OpenTelemetry, Prometheus, Tracing	L2	5h	solid
Prometheus Deep Dive	Prometheus, Prometheus Deep Dive	L2	5h	solid
SLO Tooling	SLO Tooling	L2	4h	solid
SRE Practices	Alerting Rules	L2	5h	solid
Synthetic Monitoring	Synthetic Monitoring	L1	3h	solid
Tracing	Tracing	L1	2h	solid
perf Profiling	Tracing	L2	2h	solid
strace	Tracing	L1	2h	solid

Asset	Topics	Level	Time	Status
Incident Simulator (18 scenarios) (CLI)	Loki, Prometheus	L2	4h	solid

Asset	Topics	Level	Time	Status
Lab: Loki No Logs (CLI)	Loki	L2	30m	solid
Lab: Prometheus Target Down (CLI)	Grafana, Prometheus	L2	30m	solid

Asset	Topics	Level	Time	Status
Alerting Rules Drills	Alerting Rules, Prometheus	L2	30m	solid
LogQL Drills	Loki	L2	30m	solid
Observability Drills	Loki, Prometheus	L2	30m	solid
PromQL Drills	Prometheus	L2	30m	solid

Asset	Topics	Level	Time	Status
Adversarial Interview Gauntlet (30 sequences)	Prometheus	L2	15h	solid
Interview: Loki Logs Disappeared	Loki	L2	15m	solid
Interview: Prometheus Target Down	Prometheus	L2	15m	solid

Asset	Topics	Level	Time	Status
Runbook: Alert Storm (Flapping / Too Many Alerts)	Alerting Rules, Prometheus	L2	15m	solid
Runbook: Grafana Dashboard Blank / No Data	Grafana	L1	15m	solid
Runbook: Log Pipeline Backpressure / Logs Not Appearing	Log Pipelines, Loki	L2	15m	solid
Runbook: Loki No Logs	Loki	L2	15m	solid
Runbook: Prometheus Target Down	Prometheus	L1	15m	solid
Runbook: Tempo No Traces	Tempo	L2	15m	solid

Asset	Topics	Level	Time	Status
Skillcheck: Alerting Rules	Alerting Rules, Prometheus	L2	30m	solid
Skillcheck: Observability	Grafana, Loki, Prometheus	L2	30m	solid

Asset	Topics	Level	Time	Status
Observability Architecture	Grafana, Loki, Prometheus	L2	30m	solid
Track: Observability	Grafana, Loki, Prometheus	L2	10h	solid

Asset	Topics	Level	Time	Status
Case Study: Alert Storm — Flapping Health Checks	Alerting Rules	L2	30m	solid
Case Study: Disk Full — Runaway Logs, Fix Is Loki Retention	Prometheus	L2	30m	solid
Case Study: Grafana Dashboard Empty — Prometheus Blocked by NetworkPolicy	Prometheus	L2	30m	solid
Ops Archaeology: The Alerts That Stopped Firing	Prometheus	L2	30m	solid
Ops Archaeology: The Slow Death Nobody Noticed	Prometheus	L2	30m	solid