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Add confluent kafka docs (#1668)
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* add elasticsearch to docs

* add confluent kafka to docs

* tox generate fix

* tox docs fix

---------

Co-authored-by: Srikanth Chekuri <srikanth.chekuri92@gmail.com>
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nemoshlag and srikanthccv committed Feb 15, 2023
1 parent 5e4766e commit 1e89854
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Showing 5 changed files with 59 additions and 42 deletions.
1 change: 1 addition & 0 deletions docs-requirements.txt
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ asyncpg>=0.12.0
boto~=2.0
botocore~=1.0
celery>=4.0
confluent-kafka>= 1.8.2,< 2.0.0
elasticsearch>=2.0,<9.0
flask~=2.0
falcon~=2.0
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27 changes: 8 additions & 19 deletions docs/conf.py
Original file line number Diff line number Diff line change
Expand Up @@ -126,25 +126,14 @@ def getlistcfg(strval):
]


if "class_references" in mcfg:
class_references = getlistcfg(mcfg["class_references"])
for class_reference in class_references:
nitpick_ignore.append(
(
"py:class",
class_reference,
)
)

if "anys" in mcfg:
anys = getlistcfg(mcfg["anys"])
for _any in anys:
nitpick_ignore.append(
(
"any",
_any,
)
)
ignore_categories = ["py-class", "py-func", "py-exc", "any"]

for category in ignore_categories:
if category in mcfg:
items = getlistcfg(mcfg[category])
for item in items:
nitpick_ignore.append((category.replace("-", ":"), item))


# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]
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7 changes: 7 additions & 0 deletions docs/instrumentation/confluent_kafka/confluent_kafka.rst
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
.. include:: ../../../instrumentation/opentelemetry-instrumentation-confluent-kafka/README.rst

.. automodule:: opentelemetry.instrumentation.confluent_kafka
:members:
:undoc-members:
:show-inheritance:
:noindex:
23 changes: 21 additions & 2 deletions docs/nitpick-exceptions.ini
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
[default]
class_references=
py-class=
; TODO: Understand why sphinx is not able to find this local class
opentelemetry.propagators.textmap.CarrierT
opentelemetry.propagators.textmap.Setter
Expand All @@ -11,6 +11,8 @@ class_references=
opentelemetry.propagators.textmap.Getter
; - AWSXRayPropagator
opentelemetry.sdk.trace.id_generator.IdGenerator
opentelemetry.instrumentation.confluent_kafka.ProxiedProducer
opentelemetry.instrumentation.confluent_kafka.ProxiedConsumer
; - AwsXRayIdGenerator
TextMapPropagator
CarrierT
Expand All @@ -26,8 +28,16 @@ class_references=
httpx.AsyncByteStream
httpx.Response
yarl.URL
cimpl.Producer
cimpl.Consumer
func
Message
TopicPartition
callable
Consumer
confluent_kafka.Message

anys=
any=
; API
opentelemetry.propagators.textmap.TextMapPropagator.fields
; - AWSXRayPropagator
Expand All @@ -44,3 +54,12 @@ anys=
; - instrumentation.*
Setter
httpx
;
py-func=
poll
flush
Message.error

py-exc=
KafkaException
KafkaError
Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,12 @@
# limitations under the License.

"""
Instrument `confluent-kafka-python` to report instrumentation-confluent-kafka produced and consumed messages
Instrument confluent-kafka-python to report instrumentation-confluent-kafka produced and consumed messages
Usage
-----
..code:: python
.. code-block:: python
from opentelemetry.instrumentation.confluent_kafka import ConfluentKafkaInstrumentor
from confluent_kafka import Producer, Consumer
Expand All @@ -30,24 +30,21 @@
conf1 = {'bootstrap.servers': "localhost:9092"}
producer = Producer(conf1)
producer.produce('my-topic',b'raw_bytes')
conf2 = {'bootstrap.servers': "localhost:9092",
'group.id': "foo",
'auto.offset.reset': 'smallest'}
conf2 = {'bootstrap.servers': "localhost:9092", 'group.id': "foo", 'auto.offset.reset': 'smallest'}
# report a span of type consumer with the default settings
consumer = Consumer(conf2)
def basic_consume_loop(consumer, topics):
try:
consumer.subscribe(topics)
running = True
while running:
msg = consumer.poll(timeout=1.0)
if msg is None: continue
if msg.error():
if msg.error().code() == KafkaError._PARTITION_EOF:
# End of partition event
sys.stderr.write(f"{msg.topic()} [{msg.partition()}] reached end at offset {msg.offset()}}\n")
sys.stderr.write(f"{msg.topic() [{msg.partition()}] reached end at offset {msg.offset()}}")
elif msg.error():
raise KafkaException(msg.error())
else:
Expand All @@ -57,19 +54,26 @@ def basic_consume_loop(consumer, topics):
consumer.close()
basic_consume_loop(consumer, "my-topic")
---
The _instrument method accepts the following keyword args:
tracer_provider (TracerProvider) - an optional tracer provider
instrument_producer (Callable) - a function with extra user-defined logic to be performed before sending the message
this function signature is:
def instrument_producer(producer: Producer, tracer_provider=None)
instrument_consumer (Callable) - a function with extra user-defined logic to be performed after consuming a message
this function signature is:
def instrument_consumer(consumer: Consumer, tracer_provider=None)
for example:
.. code:: python
The `_instrument` method accepts the following keyword args:
tracer_provider (TracerProvider) - an optional tracer provider
instrument_producer (Callable) - a function with extra user-defined logic to be performed before sending the message
this function signature is:
def instrument_producer(producer: Producer, tracer_provider=None)
instrument_consumer (Callable) - a function with extra user-defined logic to be performed after consuming a message
this function signature is:
def instrument_consumer(consumer: Consumer, tracer_provider=None)
for example:
.. code: python
from opentelemetry.instrumentation.confluent_kafka import ConfluentKafkaInstrumentor
from confluent_kafka import Producer, Consumer
inst = ConfluentKafkaInstrumentor()
Expand All @@ -85,15 +89,12 @@ def instrument_consumer(consumer: Consumer, tracer_provider=None)
p = inst.instrument_producer(p, tracer_provider)
c = inst.instrument_consumer(c, tracer_provider=tracer_provider)
# Using kafka as normal now will automatically generate spans,
# including user custom attributes added from the hooks
conf = {'bootstrap.servers': "localhost:9092"}
p.produce('my-topic',b'raw_bytes')
msg = c.poll()
API
___
"""
from typing import Collection
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