From Zero to Production: Architecture, Traces, Metrics, Logs, OTLP, Collector, Kubernetes, Sampling, Security, Scaling, Troubleshooting and Best Practices Technology: OpenTelemetry / OTelLevel: Beginner → Intermediate → Advanced → ProductionLast verified: September 15, 2026 OpenTelemetry, usually abbreviated OTel, is an open-source, vendor-neutral observability framework used to: instrument applications generate telemetry collect telemetry process telemetry correlate telemetry … [Read more…]