chore: import upstream snapshot with attribution

python/ray/util/tracing/setup_tempo_tracing.py

@@ -0,0 +1,24 @@
+# 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())
+    )