Add instrumentation for Celery

.pylintrc

@@ -226,7 +226,7 @@ dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
 
 # Argument names that match this expression will be ignored. Default to name
 # with leading underscore.
-ignored-argument-names=_.*|^ignored_|^unused_
+ignored-argument-names=_.*|^ignored_|^unused_|^kwargs|^args
 
 # Tells whether we should check for unused import in __init__ files.
 init-import=no

dev-requirements.txt

@@ -8,4 +8,4 @@ sphinx-rtd-theme~=0.4
 sphinx-autodoc-typehints~=1.10.2
 pytest!=5.2.3
 pytest-cov>=2.8
-readme-renderer~=24.0
+readme-renderer~=24.0

docs-requirements.txt

@@ -21,6 +21,7 @@ redis>=2.6
 sqlalchemy>=1.0
 thrift>=0.10.0
 wrapt>=1.0.0,<2.0.0
+celery>=4.0
 psutil~=5.7.0
 boto~=2.0
 google-cloud-trace >=0.23.0

docs/ext/celery/celery.rst

@@ -0,0 +1,7 @@
+OpenTelemetry Celery Instrumentation
+====================================
+
+.. automodule:: opentelemetry.ext.celery
+    :members:
+    :undoc-members:
+    :show-inheritance:

ext/opentelemetry-ext-celery/CHANGELOG.md

@@ -0,0 +1,5 @@
+# Changelog
+
+## Unreleased
+
+- Add instrumentation for Celery ([#780](https://github.com/open-telemetry/opentelemetry-python/pull/780))

ext/opentelemetry-ext-celery/LICENSE

@@ -0,0 +1,201 @@
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ext/opentelemetry-ext-celery/MANIFEST.in

@@ -0,0 +1,9 @@
+graft src
+graft tests
+global-exclude *.pyc
+global-exclude *.pyo
+global-exclude __pycache__/*
+include CHANGELOG.md
+include MANIFEST.in
+include README.rst
+include LICENSE

ext/opentelemetry-ext-celery/README.rst

@@ -0,0 +1,50 @@
+OpenTelemetry Celery Instrumentation
+====================================
+
+|pypi|
+
+.. |pypi| image:: https://badge.fury.io/py/opentelemetry-ext-celery.svg
+   :target: https://pypi.org/project/opentelemetry-ext-celery/
+
+Instrumentation for Celery.
+
+
+Installation
+------------
+
+::
+
+    pip install opentelemetry-ext-celery
+
+Usage
+-----
+
+* Start broker backend
+
+::
+    docker run -p 5672:5672 rabbitmq
+
+
+* Run instrumented task
+
+.. code-block:: python
+
+    from opentelemetry.ext.celery import CeleryInstrumentor
+
+    CeleryInstrumentor().instrument()
+
+    from celery import Celery
+
+    app = Celery("tasks", broker="amqp://localhost")
+
+    @app.task
+    def add(x, y):
+        return x + y
+
+    add.delay(42, 50)
+
+References
+----------
+* `OpenTelemetry Celery Instrumentation <https://opentelemetry-python.readthedocs.io/en/latest/ext/celery/celery.html>`_
+* `OpenTelemetry Project <https://opentelemetry.io/>`_
+

ext/opentelemetry-ext-celery/setup.cfg

@@ -0,0 +1,56 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+[metadata]
+name = opentelemetry-ext-celery
+description = OpenTelemetry Celery Instrumentation
+long_description = file: README.rst
+long_description_content_type = text/x-rst
+author = OpenTelemetry Authors
+author_email = cncf-opentelemetry-contributors@lists.cncf.io
+url = https://github.com/open-telemetry/opentelemetry-python/tree/master/ext/opentelemetry-ext-celery
+platforms = any
+license = Apache-2.0
+classifiers =
+    Development Status :: 4 - Beta
+    Intended Audience :: Developers
+    License :: OSI Approved :: Apache Software License
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+
+[options]
+python_requires = >=3.5
+package_dir=
+    =src
+packages=find_namespace:
+install_requires =
+    opentelemetry-api == 0.10.dev0
+    opentelemetry-instrumentation == 0.10.dev0
+    celery ~= 4.0
+
+[options.extras_require]
+test =
+    pytest
+    opentelemetry-test == 0.10.dev0
+
+[options.packages.find]
+where = src
+
+[options.entry_points]
+opentelemetry_instrumentor =
+    celery = opentelemetry.ext.celery:CeleryInstrumentor

ext/opentelemetry-ext-celery/setup.py

@@ -0,0 +1,26 @@
+# Copyright The OpenTelemetry Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import os
+
+import setuptools
+
+BASE_DIR = os.path.dirname(__file__)
+VERSION_FILENAME = os.path.join(
+    BASE_DIR, "src", "opentelemetry", "ext", "celery", "version.py"
+)
+PACKAGE_INFO = {}
+with open(VERSION_FILENAME) as f:
+    exec(f.read(), PACKAGE_INFO)
+
+setuptools.setup(version=PACKAGE_INFO["__version__"])