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Add initial library code
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.github/workflows/build.yml

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name: Python Build
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on:
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push:
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branches: [ main ]
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pull_request:
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branches: [ main ]
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.github/workflows/release.yml

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name: Publish to pypi.org
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on:
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workflow_dispatch:
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release:
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types: [published]
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jobs:
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publish:
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runs-on: ubuntu-latest
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steps:
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- uses: robinraju/release-downloader@v1.4
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with:
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tag: ${{ github.event.release.tag_name }}
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fileName: "*"
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tarBall: false
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zipBall: false
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out-file-path: "dist"
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token: ${{ secrets.GITHUB_TOKEN }}
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- name: Publish a Python distribution to PyPI
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uses: pypa/gh-action-pypi-publish@release/v1
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with:
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user: __token__
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password: ${{ secrets.PYPI_API_TOKEN }}

LICENSE

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README.md

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## Span profiles support for OpenTelemetry in Python
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This package enables applications that already rely on [OpenTelemetry](https://opentelemetry.io/docs/instrumentation/python/getting-started/) for distributed tracing and Pyroscope for continuous profiling to link the tracing and profiling data together.
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See https://grafana.com/docs/pyroscope/latest/configure-client/trace-span-profiles/ for more information.
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### Prerequisites
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- Your Python application is instrumented with [Pyroscope's profiler](https://grafana.com/docs/pyroscope/latest/configure-client/language-sdks/python/)
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- Your Python application is instrumented with [OpenTelemetry](https://opentelemetry.io/docs/instrumentation/python/getting-started/)
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### Integration
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Add the following package to your project:
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```shell
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pip install pyroscole-otel
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```
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Register the `PyroscopeSpanProcessor` in your OpenTelemetry integration:
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```python
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from opentelemetry import trace
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from opentelemetry.sdk.trace import TracerProvider
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from pyroscope-otel import PyroscopeSpanProcessor
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provider = TracerProvider()
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provider.add_span_processor(PyroscopeSpanProcessor())
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trace.set_tracer_provider(provider)
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```

pyproject.toml

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[build-system]
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requires = ["setuptools >= 61.0"]
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build-backend = "setuptools.build_meta"
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[project]
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name = "pyroscope-otel"
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description = "A library providing profiling functionalities related to OpenTelemetry"
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readme = "README.md"
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dynamic = ["version"]
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requires-python = ">= 3.8"
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dependencies = [
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"opentelemetry-api==1.24.0",
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"opentelemetry-sdk==1.24.0",
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"pyroscope-io==0.8.7"
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]
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license = {file = "LICENSE"}

src/pyroscope/otel/__init__.py

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import typing
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import threading
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from opentelemetry.sdk.trace import (
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Span,
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ReadableSpan,
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SpanProcessor,
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)
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from opentelemetry.context import Context
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import pyroscope
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PROFILE_ID_SPAN_ATTRIBUTE_KEY = 'pyroscope.profile.id'
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PROFILE_ID_PYROSCOPE_TAG_KEY = 'span_id'
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def _is_root_span(span: Span):
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return span.parent is None or span.parent.is_remote
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def _get_span_id(span: Span):
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return format(span.context.span_id, "016x")
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# A span processor that sets a common identifier in spans and profiling samples, so that they can be linked together.
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class PyroscopeSpanProcessor(SpanProcessor):
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def on_start(
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self, span: Span, parent_context: typing.Optional[Context] = None
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) -> None:
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if _is_root_span(span):
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span.set_attribute(PROFILE_ID_SPAN_ATTRIBUTE_KEY, format(span.context.span_id, "016x"))
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pyroscope.add_thread_tag(threading.get_ident(), PROFILE_ID_PYROSCOPE_TAG_KEY, _get_span_id(span))
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def on_end(self, span: ReadableSpan) -> None:
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if _is_root_span(span):
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pyroscope.remove_thread_tag(threading.get_ident(), PROFILE_ID_PYROSCOPE_TAG_KEY, _get_span_id(span))
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def shutdown(self) -> None:
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pass
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def force_flush(self, timeout_millis: int = 30000) -> bool:
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return True

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