buck2_events: Add OpenTelemetry EventSink#1370
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This adds a new `OtelEventSink` which sends `InvocationRecord` wide events to an OpenTelemetry collector, if configured. This respects the following environment variables: - `$OTEL_EXPORTER_OTLP_*` - `$OTEL_SDK_DISABLED` - `$OTEL_SERVICE_NAME` - `$OTEL_RESOURCE_ATTRIBUTES` - `$TRACEPARENT` - `TRACESTATE`
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This adds a new
OtelEventSinkwhich sendsInvocationRecordwide events to an OpenTelemetry collector, if configured.This respects the following environment variables:
$OTEL_EXPORTER_OTLP_*$OTEL_SDK_DISABLED$OTEL_SERVICE_NAME$OTEL_RESOURCE_ATTRIBUTES$TRACEPARENT$TRACESTATEWe've been running this patch internally and it works well.
Most of the diff is in
app/buck2_events/src/sink/otel_record.rswhich is an essentially mechanical translation fromInvocationRecords to a set of Otel attributes.