SIG Instrumentation Introduction and Deep Dive
Talkat KubeCon + CloudNativeCon Europe 2025 · on Wednesday, 2025-04-02· at 12:00· Level 3 | ICC Capital Suite 7-9·
summary
SIG Instrumentation enforces consistent signals across Kubernetes: metrics use the Prometheus metric format with stability annotations to avoid breaking renames, plus exemplars added to some API server metrics in 1.2. New human-readable Z pages land in 1.32 and expand to all control plane components in 1.33. Logging gains contextual structured output and an optional JSON mode via klog; tracing is deployed in apiserver and kubelet with GA targeted for 1.34. Subprojects include UMC (per-second high‑fidelity metrics, cgroupv2 support), KSM, and a near‑alpha resource state metrics that decouples CRDs.
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chapters (17)
- 0:00SIG Instrumentation overview
- 1:48SIG goals and processes
- 2:51Kubernetes metrics and Prometheus
- 4:15Metrics stability framework
- 5:39Key metrics for debugging
- 7:23Kubernetes Z pages
- 8:46Structured logging with Klog
- 10:33Contextual logging improvements
- 12:18Distributed tracing in Kubernetes
- 14:28Tracing with metrics and logs
- 16:38Tracing progress and plans
- 17:00Usage Metrics Collector
- 19:04Kube State Metrics
- 21:34Resource State Metrics and Auto SIM
- 24:22Extensible resolvers in RSM
- 25:24Contributing to SIG Instrumentation
- 27:10Resources and community
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