image-match/python/py/Lib/site-packages/ray/util/tracing/setup_tempo_tracing.py

# This file is intended for examples exporting traces to a local OTLP listener
from opentelemetry import trace
from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import (
    OTLPSpanExporter,
)  # noqa
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import (
    ConsoleSpanExporter,
    SimpleSpanProcessor,
)


def setup_tracing() -> None:
    # Sets the tracer_provider. This is only allowed once per execution
    # context and will log a warning if attempted multiple times.
    trace.set_tracer_provider(TracerProvider())
    trace.get_tracer_provider().add_span_processor(
        SimpleSpanProcessor(
            OTLPSpanExporter(endpoint="http://localhost:4317", insecure=True)
        )
    )
    trace.get_tracer_provider().add_span_processor(
        SimpleSpanProcessor(ConsoleSpanExporter())
    )