Merge pull request #83 from NathanielRN/move-instrumentation-django

Move instrumentation django
This commit is contained in:
alrex
2020-10-22 21:59:36 -07:00
committed by GitHub
12 changed files with 1066 additions and 0 deletions

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# Changelog
## Unreleased
- Django instrumentation is now enabled by default but can be disabled by setting `OTEL_PYTHON_DJANGO_INSTRUMENT` to `False` ([#1239](https://github.com/open-telemetry/opentelemetry-python/pull/1239))
## Version 0.14b0
Released 2020-10-13
- Changed span name extraction from request to comply semantic convention ([#992](https://github.com/open-telemetry/opentelemetry-python/pull/992))
- Added support for `OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS` ([#1154](https://github.com/open-telemetry/opentelemetry-python/pull/1154))
- Added capture of http.route ([#1226](https://github.com/open-telemetry/opentelemetry-python/issues/1226))
- Add support for tracking http metrics
([#1230](https://github.com/open-telemetry/opentelemetry-python/pull/1230))
## Version 0.13b0
Released 2020-09-17
- Drop support for Python 3.4
([#1099](https://github.com/open-telemetry/opentelemetry-python/pull/1099))
## Version 0.12b0
Released 2020-08-14
- Change package name to opentelemetry-instrumentation-django
([#961](https://github.com/open-telemetry/opentelemetry-python/pull/961))
- Update environment variable names, prefix changed from `OPENTELEMETRY` to `OTEL` ([#904](https://github.com/open-telemetry/opentelemetry-python/pull/904))
## Version 0.11b0
Released 2020-07-28
- Use one general exclude list instead of two ([#872](https://github.com/open-telemetry/opentelemetry-python/pull/872))
## 0.8b0
Released 2020-05-27
- Add exclude list for paths and hosts to prevent from tracing
([#670](https://github.com/open-telemetry/opentelemetry-python/pull/670))
- Add support for django >= 1.10 (#717)
## 0.7b1
Released 2020-05-12
- Initial release

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graft src
graft tests
global-exclude *.pyc
global-exclude *.pyo
global-exclude __pycache__/*
include CHANGELOG.md
include MANIFEST.in
include README.rst
include LICENSE

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OpenTelemetry Django Tracing
============================
|pypi|
.. |pypi| image:: https://badge.fury.io/py/opentelemetry-instrumentation-django.svg
:target: https://pypi.org/project/opentelemetry-instrumentation-django/
This library allows tracing requests for Django applications.
Installation
------------
::
pip install opentelemetry-instrumentation-django
Configuration
-------------
Exclude lists
*************
To exclude certain URLs from being tracked, set the environment variable ``OTEL_PYTHON_DJANGO_EXCLUDED_URLS`` with comma delimited regexes representing which URLs to exclude.
For example,
::
export OTEL_PYTHON_DJANGO_EXCLUDED_URLS="client/.*/info,healthcheck"
will exclude requests such as ``https://site/client/123/info`` and ``https://site/xyz/healthcheck``.
Request attributes
********************
To extract certain attributes from Django's request object and use them as span attributes, set the environment variable ``OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS`` to a comma
delimited list of request attribute names.
For example,
::
export OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS='path_info,content_type'
will extract path_info and content_type attributes from every traced request and add them as span attritbues.
Django Request object reference: https://docs.djangoproject.com/en/3.1/ref/request-response/#attributes
References
----------
* `Django <https://www.djangoproject.com/>`_
* `OpenTelemetry Instrumentation for Django <https://opentelemetry-python.readthedocs.io/en/latest/instrumentation/django/django.html>`_
* `OpenTelemetry Project <https://opentelemetry.io/>`_

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# 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-instrumentation-django
description = OpenTelemetry Instrumentation for Django
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/instrumentation/opentelemetry-instrumentation-django
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 =
django >= 1.10
opentelemetry-instrumentation-wsgi == 0.15.dev0
opentelemetry-instrumentation == 0.15.dev0
opentelemetry-api == 0.15.dev0
[options.extras_require]
test =
opentelemetry-test == 0.15.dev0
[options.packages.find]
where = src
[options.entry_points]
opentelemetry_instrumentor =
django = opentelemetry.instrumentation.django:DjangoInstrumentor

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# 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.
from os.path import dirname, join
from setuptools import setup
PACKAGE_INFO = {}
with open(
join(
dirname(__file__),
"src",
"opentelemetry",
"instrumentation",
"django",
"version.py",
)
) as f:
exec(f.read(), PACKAGE_INFO)
setup(version=PACKAGE_INFO["__version__"])

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# 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.
from logging import getLogger
from django.conf import settings
from opentelemetry.configuration import Configuration
from opentelemetry.instrumentation.django.middleware import _DjangoMiddleware
from opentelemetry.instrumentation.django.version import __version__
from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
from opentelemetry.instrumentation.metric import (
HTTPMetricRecorder,
HTTPMetricType,
MetricMixin,
)
_logger = getLogger(__name__)
class DjangoInstrumentor(BaseInstrumentor, MetricMixin):
"""An instrumentor for Django
See `BaseInstrumentor`
"""
_opentelemetry_middleware = ".".join(
[_DjangoMiddleware.__module__, _DjangoMiddleware.__qualname__]
)
def _instrument(self, **kwargs):
# FIXME this is probably a pattern that will show up in the rest of the
# ext. Find a better way of implementing this.
# FIXME Probably the evaluation of strings into boolean values can be
# built inside the Configuration class itself with the magic method
# __bool__
if Configuration().DJANGO_INSTRUMENT is False:
return
# This can not be solved, but is an inherent problem of this approach:
# the order of middleware entries matters, and here you have no control
# on that:
# https://docs.djangoproject.com/en/3.0/topics/http/middleware/#activating-middleware
# https://docs.djangoproject.com/en/3.0/ref/middleware/#middleware-ordering
settings_middleware = getattr(settings, "MIDDLEWARE", [])
# Django allows to specify middlewares as a tuple, so we convert this tuple to a
# list, otherwise we wouldn't be able to call append/remove
if isinstance(settings_middleware, tuple):
settings_middleware = list(settings_middleware)
settings_middleware.insert(0, self._opentelemetry_middleware)
self.init_metrics(
__name__, __version__,
)
metric_recorder = HTTPMetricRecorder(self.meter, HTTPMetricType.SERVER)
setattr(settings, "OTEL_METRIC_RECORDER", metric_recorder)
setattr(settings, "MIDDLEWARE", settings_middleware)
def _uninstrument(self, **kwargs):
settings_middleware = getattr(settings, "MIDDLEWARE", None)
# FIXME This is starting to smell like trouble. We have 2 mechanisms
# that may make this condition be True, one implemented in
# BaseInstrumentor and another one implemented in _instrument. Both
# stop _instrument from running and thus, settings_middleware not being
# set.
if settings_middleware is None or (
self._opentelemetry_middleware not in settings_middleware
):
return
settings_middleware.remove(self._opentelemetry_middleware)
setattr(settings, "MIDDLEWARE", settings_middleware)

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# 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 time
from logging import getLogger
from django.conf import settings
from opentelemetry.configuration import Configuration
from opentelemetry.context import attach, detach
from opentelemetry.instrumentation.django.version import __version__
from opentelemetry.instrumentation.utils import extract_attributes_from_object
from opentelemetry.instrumentation.wsgi import (
add_response_attributes,
collect_request_attributes,
get_header_from_environ,
)
from opentelemetry.propagators import extract
from opentelemetry.trace import SpanKind, get_tracer
from opentelemetry.util import ExcludeList
try:
from django.core.urlresolvers import ( # pylint: disable=no-name-in-module
resolve,
Resolver404,
)
except ImportError:
from django.urls import resolve, Resolver404
try:
from django.utils.deprecation import MiddlewareMixin
except ImportError:
MiddlewareMixin = object
_logger = getLogger(__name__)
_attributes_by_preference = [
["http.scheme", "http.host", "http.target"],
["http.scheme", "http.server_name", "net.host.port", "http.target"],
["http.scheme", "net.host.name", "net.host.port", "http.target"],
["http.url"],
]
class _DjangoMiddleware(MiddlewareMixin):
"""Django Middleware for OpenTelemetry"""
_environ_activation_key = (
"opentelemetry-instrumentor-django.activation_key"
)
_environ_token = "opentelemetry-instrumentor-django.token"
_environ_span_key = "opentelemetry-instrumentor-django.span_key"
_environ_exception_key = "opentelemetry-instrumentor-django.exception_key"
_excluded_urls = Configuration().DJANGO_EXCLUDED_URLS or []
if _excluded_urls:
_excluded_urls = ExcludeList(str.split(_excluded_urls, ","))
else:
_excluded_urls = ExcludeList(_excluded_urls)
_traced_request_attrs = [
attr.strip()
for attr in (Configuration().DJANGO_TRACED_REQUEST_ATTRS or "").split(
","
)
]
@staticmethod
def _get_span_name(request):
try:
if getattr(request, "resolver_match"):
match = request.resolver_match
else:
match = resolve(request.get_full_path())
if hasattr(match, "route"):
return match.route
# Instead of using `view_name`, better to use `_func_name` as some applications can use similar
# view names in different modules
if hasattr(match, "_func_name"):
return match._func_name # pylint: disable=protected-access
# Fallback for safety as `_func_name` private field
return match.view_name
except Resolver404:
return "HTTP {}".format(request.method)
@staticmethod
def _get_metric_labels_from_attributes(attributes):
labels = {}
labels["http.method"] = attributes.get("http.method", "")
for attrs in _attributes_by_preference:
labels_from_attributes = {
attr: attributes.get(attr, None) for attr in attrs
}
if set(attrs).issubset(attributes.keys()):
labels.update(labels_from_attributes)
break
if attributes.get("http.flavor"):
labels["http.flavor"] = attributes.get("http.flavor")
return labels
def process_request(self, request):
# request.META is a dictionary containing all available HTTP headers
# Read more about request.META here:
# https://docs.djangoproject.com/en/3.0/ref/request-response/#django.http.HttpRequest.META
if self._excluded_urls.url_disabled(request.build_absolute_uri("?")):
return
# pylint:disable=W0212
request._otel_start_time = time.time()
environ = request.META
token = attach(extract(get_header_from_environ, environ))
tracer = get_tracer(__name__, __version__)
span = tracer.start_span(
self._get_span_name(request),
kind=SpanKind.SERVER,
start_time=environ.get(
"opentelemetry-instrumentor-django.starttime_key"
),
)
attributes = collect_request_attributes(environ)
# pylint:disable=W0212
request._otel_labels = self._get_metric_labels_from_attributes(
attributes
)
if span.is_recording():
attributes = extract_attributes_from_object(
request, self._traced_request_attrs, attributes
)
for key, value in attributes.items():
span.set_attribute(key, value)
activation = tracer.use_span(span, end_on_exit=True)
activation.__enter__()
request.META[self._environ_activation_key] = activation
request.META[self._environ_span_key] = span
request.META[self._environ_token] = token
# pylint: disable=unused-argument
def process_view(self, request, view_func, *args, **kwargs):
# Process view is executed before the view function, here we get the
# route template from request.resolver_match. It is not set yet in process_request
if self._excluded_urls.url_disabled(request.build_absolute_uri("?")):
return
if (
self._environ_activation_key in request.META.keys()
and self._environ_span_key in request.META.keys()
):
span = request.META[self._environ_span_key]
if span.is_recording():
match = getattr(request, "resolver_match")
if match:
route = getattr(match, "route")
if route:
span.set_attribute("http.route", route)
def process_exception(self, request, exception):
if self._excluded_urls.url_disabled(request.build_absolute_uri("?")):
return
if self._environ_activation_key in request.META.keys():
request.META[self._environ_exception_key] = exception
def process_response(self, request, response):
if self._excluded_urls.url_disabled(request.build_absolute_uri("?")):
return response
if (
self._environ_activation_key in request.META.keys()
and self._environ_span_key in request.META.keys()
):
add_response_attributes(
request.META[self._environ_span_key],
"{} {}".format(response.status_code, response.reason_phrase),
response,
)
# pylint:disable=W0212
request._otel_labels["http.status_code"] = str(
response.status_code
)
request.META.pop(self._environ_span_key)
exception = request.META.pop(self._environ_exception_key, None)
if exception:
request.META[self._environ_activation_key].__exit__(
type(exception),
exception,
getattr(exception, "__traceback__", None),
)
else:
request.META[self._environ_activation_key].__exit__(
None, None, None
)
request.META.pop(self._environ_activation_key)
if self._environ_token in request.META.keys():
detach(request.environ.get(self._environ_token))
request.META.pop(self._environ_token)
try:
metric_recorder = getattr(settings, "OTEL_METRIC_RECORDER", None)
if metric_recorder is not None:
# pylint:disable=W0212
metric_recorder.record_server_duration_range(
request._otel_start_time, time.time(), request._otel_labels
)
except Exception as ex: # pylint: disable=W0703
_logger.warning("Error recording duration metrics: %s", ex)
return response

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# 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.
__version__ = "0.15.dev0"

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# 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.
from sys import modules
from unittest.mock import Mock, patch
from django import VERSION
from django.conf import settings
from django.conf.urls import url
from django.test import Client
from django.test.utils import setup_test_environment, teardown_test_environment
from opentelemetry.configuration import Configuration
from opentelemetry.instrumentation.django import DjangoInstrumentor
from opentelemetry.sdk.util import get_dict_as_key
from opentelemetry.test.test_base import TestBase
from opentelemetry.test.wsgitestutil import WsgiTestBase
from opentelemetry.trace import SpanKind
from opentelemetry.trace.status import StatusCanonicalCode
from opentelemetry.util import ExcludeList
# pylint: disable=import-error
from .views import (
error,
excluded,
excluded_noarg,
excluded_noarg2,
route_span_name,
traced,
traced_template,
)
DJANGO_2_2 = VERSION >= (2, 2)
urlpatterns = [
url(r"^traced/", traced),
url(r"^route/(?P<year>[0-9]{4})/template/$", traced_template),
url(r"^error/", error),
url(r"^excluded_arg/", excluded),
url(r"^excluded_noarg/", excluded_noarg),
url(r"^excluded_noarg2/", excluded_noarg2),
url(r"^span_name/([0-9]{4})/$", route_span_name),
]
_django_instrumentor = DjangoInstrumentor()
class TestMiddleware(TestBase, WsgiTestBase):
@classmethod
def setUpClass(cls):
super().setUpClass()
settings.configure(ROOT_URLCONF=modules[__name__])
def setUp(self):
super().setUp()
setup_test_environment()
_django_instrumentor.instrument()
Configuration._reset() # pylint: disable=protected-access
def tearDown(self):
super().tearDown()
teardown_test_environment()
_django_instrumentor.uninstrument()
def test_templated_route_get(self):
Client().get("/route/2020/template/")
spans = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans), 1)
span = spans[0]
self.assertEqual(
span.name,
"^route/(?P<year>[0-9]{4})/template/$"
if DJANGO_2_2
else "tests.views.traced",
)
self.assertEqual(span.kind, SpanKind.SERVER)
self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK)
self.assertEqual(span.attributes["http.method"], "GET")
self.assertEqual(
span.attributes["http.url"],
"http://testserver/route/2020/template/",
)
self.assertEqual(
span.attributes["http.route"],
"^route/(?P<year>[0-9]{4})/template/$",
)
self.assertEqual(span.attributes["http.scheme"], "http")
self.assertEqual(span.attributes["http.status_code"], 200)
self.assertEqual(span.attributes["http.status_text"], "OK")
def test_traced_get(self):
Client().get("/traced/")
spans = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans), 1)
span = spans[0]
self.assertEqual(
span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced"
)
self.assertEqual(span.kind, SpanKind.SERVER)
self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK)
self.assertEqual(span.attributes["http.method"], "GET")
self.assertEqual(
span.attributes["http.url"], "http://testserver/traced/"
)
self.assertEqual(span.attributes["http.route"], "^traced/")
self.assertEqual(span.attributes["http.scheme"], "http")
self.assertEqual(span.attributes["http.status_code"], 200)
self.assertEqual(span.attributes["http.status_text"], "OK")
self.assertIsNotNone(_django_instrumentor.meter)
self.assertEqual(len(_django_instrumentor.meter.metrics), 1)
recorder = _django_instrumentor.meter.metrics.pop()
match_key = get_dict_as_key(
{
"http.flavor": "1.1",
"http.method": "GET",
"http.status_code": "200",
"http.url": "http://testserver/traced/",
}
)
for key in recorder.bound_instruments.keys():
self.assertEqual(key, match_key)
# pylint: disable=protected-access
bound = recorder.bound_instruments.get(key)
for view_data in bound.view_datas:
self.assertEqual(view_data.labels, key)
self.assertEqual(view_data.aggregator.current.count, 1)
self.assertGreaterEqual(view_data.aggregator.current.sum, 0)
def test_not_recording(self):
mock_tracer = Mock()
mock_span = Mock()
mock_span.is_recording.return_value = False
mock_tracer.start_span.return_value = mock_span
mock_tracer.use_span.return_value.__enter__ = mock_span
mock_tracer.use_span.return_value.__exit__ = True
with patch("opentelemetry.trace.get_tracer") as tracer:
tracer.return_value = mock_tracer
Client().get("/traced/")
self.assertFalse(mock_span.is_recording())
self.assertTrue(mock_span.is_recording.called)
self.assertFalse(mock_span.set_attribute.called)
self.assertFalse(mock_span.set_status.called)
def test_traced_post(self):
Client().post("/traced/")
spans = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans), 1)
span = spans[0]
self.assertEqual(
span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced"
)
self.assertEqual(span.kind, SpanKind.SERVER)
self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK)
self.assertEqual(span.attributes["http.method"], "POST")
self.assertEqual(
span.attributes["http.url"], "http://testserver/traced/"
)
self.assertEqual(span.attributes["http.route"], "^traced/")
self.assertEqual(span.attributes["http.scheme"], "http")
self.assertEqual(span.attributes["http.status_code"], 200)
self.assertEqual(span.attributes["http.status_text"], "OK")
def test_error(self):
with self.assertRaises(ValueError):
Client().get("/error/")
spans = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans), 1)
span = spans[0]
self.assertEqual(
span.name, "^error/" if DJANGO_2_2 else "tests.views.error"
)
self.assertEqual(span.kind, SpanKind.SERVER)
self.assertEqual(
span.status.canonical_code, StatusCanonicalCode.INTERNAL
)
self.assertEqual(span.attributes["http.method"], "GET")
self.assertEqual(
span.attributes["http.url"], "http://testserver/error/"
)
self.assertEqual(span.attributes["http.route"], "^error/")
self.assertEqual(span.attributes["http.scheme"], "http")
self.assertEqual(span.attributes["http.status_code"], 500)
self.assertIsNotNone(_django_instrumentor.meter)
self.assertEqual(len(_django_instrumentor.meter.metrics), 1)
self.assertEqual(len(span.events), 1)
event = span.events[0]
self.assertEqual(event.name, "exception")
self.assertEqual(event.attributes["exception.type"], "ValueError")
self.assertEqual(event.attributes["exception.message"], "error")
recorder = _django_instrumentor.meter.metrics.pop()
match_key = get_dict_as_key(
{
"http.flavor": "1.1",
"http.method": "GET",
"http.status_code": "500",
"http.url": "http://testserver/error/",
}
)
for key in recorder.bound_instruments.keys():
self.assertEqual(key, match_key)
# pylint: disable=protected-access
bound = recorder.bound_instruments.get(key)
for view_data in bound.view_datas:
self.assertEqual(view_data.labels, key)
self.assertEqual(view_data.aggregator.current.count, 1)
@patch(
"opentelemetry.instrumentation.django.middleware._DjangoMiddleware._excluded_urls",
ExcludeList(["http://testserver/excluded_arg/123", "excluded_noarg"]),
)
def test_exclude_lists(self):
client = Client()
client.get("/excluded_arg/123")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 0)
client.get("/excluded_arg/125")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
client.get("/excluded_noarg/")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
client.get("/excluded_noarg2/")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
def test_span_name(self):
Client().get("/span_name/1234/")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
span = span_list[0]
self.assertEqual(
span.name,
"^span_name/([0-9]{4})/$"
if DJANGO_2_2
else "tests.views.route_span_name",
)
def test_span_name_404(self):
Client().get("/span_name/1234567890/")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
span = span_list[0]
self.assertEqual(span.name, "HTTP GET")
def test_traced_request_attrs(self):
with patch(
"opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
[],
):
Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
span = span_list[0]
self.assertNotIn("path_info", span.attributes)
self.assertNotIn("content_type", span.attributes)
self.memory_exporter.clear()
with patch(
"opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
["path_info", "content_type", "non_existing_variable"],
):
Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
span = span_list[0]
self.assertEqual(span.attributes["path_info"], "/span_name/1234/")
self.assertEqual(span.attributes["content_type"], "test/ct")
self.assertNotIn("non_existing_variable", span.attributes)

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@ -0,0 +1,31 @@
from django.http import HttpResponse
def traced(request): # pylint: disable=unused-argument
return HttpResponse()
def traced_template(request, year): # pylint: disable=unused-argument
return HttpResponse()
def error(request): # pylint: disable=unused-argument
raise ValueError("error")
def excluded(request): # pylint: disable=unused-argument
return HttpResponse()
def excluded_noarg(request): # pylint: disable=unused-argument
return HttpResponse()
def excluded_noarg2(request): # pylint: disable=unused-argument
return HttpResponse()
def route_span_name(
request, *args, **kwargs
): # pylint: disable=unused-argument
return HttpResponse()