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krishicks 17171cd933 refactor(otel): unify compute driver tracing (#2995)
Centralize compute-driver RPC descriptors, stream instrumentation, provider
routing, and standalone installation in openshell-otel. Use typed RPC
constants so gateway and in-process driver paths cannot panic on unknown
operation strings or repeat runtime method parsing.

Emit semantic-convention rpc.service and rpc.method attributes, preserve
trace context and resource identity across deployment modes, and route both
RPC boundary and backend crate spans to each selected driver provider. Leave
consumer-dropped watch spans unset while recording observed terminal status,
and avoid reboxing untraced external-driver streams.

Derive each driver tracing identity from Cargo package and crate metadata and
attach its descriptor to the compute-driver registration, keeping provider
selection and target routing tied to the registered implementation. Share
tracing setup and round-trip test support across Docker, Podman, Kubernetes,
and VM, and update the gateway tracing documentation.

Signed-off-by: Kris Hicks <khicks@nvidia.com>
2026-09-03 15:26:14 +00:00
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