A Guide to Observability for Your (Java) Apps in K8s
Talkat JCON Europe 2023 · on Tuesday, 2023-06-20· at 17:00· Cinema 9, Im Mediapark 1, 50670 Köln, Germany·
summary
Walks through three concrete levels: API/CLI inspection with K9s, Octant, Headlamp and live recon using kubectl debug to attach a tool container into distroless pods; network-level visibility with sidecar service meshes (Istio/Kiali) but with per-pod CPU/memory overhead and one forced pod restart versus node-based eBPF meshes like Cilium/Hubble that cut proxy hops; and application tracing via OpenTelemetry Java agent (inject in Dockerfile or instrument code), exporting to Jaeger/Grafana for span-level root cause analysis.
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chapters (8)
- 0:00Introduction and context
- 10:29Basic Kubernetes observability
- 15:49Debugging with kubectl debug
- 19:38Service mesh observability
- 25:40eBPF-based service meshes
- 31:52OpenTelemetry deep dive
- 40:16Open APM tool overview
- 42:00Summary and Q&A
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