wehub-resource-sync
60e0ffc959
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60 lines
1.9 KiB
Python
Executable File
60 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python
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"""Run a FastMCP server with OpenTelemetry tracing enabled.
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Usage:
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uv run examples/run_with_tracing.py examples/echo.py --transport sse --port 8001
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All arguments after the script name are passed to `fastmcp run`.
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Traces are exported via OTLP to localhost:4317.
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To view traces, run otel-desktop-viewer in another terminal:
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otel-desktop-viewer
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# Trace UI at http://localhost:8000, OTLP receiver on :4317
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Install otel-desktop-viewer:
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brew install nico-barbas/brew/otel-desktop-viewer
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"""
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import os
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import sys
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def main() -> None:
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if len(sys.argv) < 2:
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print(__doc__)
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sys.exit(1)
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# Configure OTEL SDK before importing fastmcp
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from opentelemetry import trace
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from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import OTLPSpanExporter
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from opentelemetry.sdk.resources import Resource
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from opentelemetry.sdk.trace import TracerProvider
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from opentelemetry.sdk.trace.export import BatchSpanProcessor
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endpoint = os.environ.get("OTEL_EXPORTER_OTLP_ENDPOINT", "http://localhost:4317")
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service_name = os.environ.get(
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"OTEL_SERVICE_NAME",
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f"fastmcp-{os.path.basename(sys.argv[1]).replace('.py', '')}",
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)
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# Set up tracer provider with OTLP exporter
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resource = Resource.create({"service.name": service_name})
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provider = TracerProvider(resource=resource)
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exporter = OTLPSpanExporter(endpoint=endpoint, insecure=True)
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provider.add_span_processor(BatchSpanProcessor(exporter))
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trace.set_tracer_provider(provider)
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print(f"Tracing enabled → OTLP {endpoint}", flush=True)
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print(f"Service: {service_name}", flush=True)
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print("View traces: otel-desktop-viewer (http://localhost:8000)\n", flush=True)
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# Now run fastmcp CLI
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from fastmcp.cli.cli import app
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sys.argv = ["fastmcp", "run", *sys.argv[1:]]
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app()
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if __name__ == "__main__":
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main()
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