Unlocking Observability in WebAssembly with OpenTelemetry
summary
Shows that OpenTelemetry actually wires into WebAssembly runtimes: demo uses Spin with an OpenTelemetry collector and Jaeger and first demo emits 4 spans via runtime auto‑instrumentation then a second demo using a WASI processor (called WASI OTel / Wiotel) produces 6 spans with proper parentage so host KV operations appear as children. Work is experimental, Rust support exists and Spin has the prototype branch, broader language and runtime support is planned.
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chapters (14)
- 0:00Introduction
- 1:02Observability in WebAssembly
- 2:47OpenTelemetry signals
- 5:54OpenTelemetry collector
- 6:38Telemetry in WebAssembly
- 7:20Auto-instrumentation in Spin
- 10:52Inter-guest telemetry
- 13:42Tracing with OpenTelemetry
- 16:55Traces from components
- 20:26Wiotel proposal
- 22:54Wiotel tracing in Spin
- 25:01Wasi-Observe to Wiotel
- 26:24Wiotel next steps
- 27:50Q&A
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