Add confluent kafka docs (#1668)

* add elasticsearch to docs

* add confluent kafka to docs

* tox generate fix

* tox docs fix

---------

Co-authored-by: Srikanth Chekuri <srikanth.chekuri92@gmail.com>

docs-requirements.txt

@@ -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

docs/conf.py

@@ -126,25 +126,14 @@ def getlistcfg(strval):
     ]
 
 
-if "class_references" in mcfg:
+ignore_categories = ["py-class", "py-func", "py-exc", "any"]
-    class_references = getlistcfg(mcfg["class_references"])
+
-    for class_reference in class_references:
+for category in ignore_categories:
-        nitpick_ignore.append(
+    if category in mcfg:
-            (
+        items = getlistcfg(mcfg[category])
-                "py:class",
+        for item in items:
-                class_reference,
+            nitpick_ignore.append((category.replace("-", ":"), item))
-            )
-        )
 
-if "anys" in mcfg:
-    anys = getlistcfg(mcfg["anys"])
-    for _any in anys:
-        nitpick_ignore.append(
-            (
-                "any",
-                _any,
-            )
-        )
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]

docs/instrumentation/confluent_kafka/confluent_kafka.rst

@@ -0,0 +1,7 @@
+.. include:: ../../../instrumentation/opentelemetry-instrumentation-confluent-kafka/README.rst
+
+.. automodule:: opentelemetry.instrumentation.confluent_kafka
+    :members:
+    :undoc-members:
+    :show-inheritance:
+    :noindex:

docs/nitpick-exceptions.ini

@@ -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
@@ -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
@@ -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
@@ -44,3 +54,12 @@ anys=
     ; - instrumentation.*
     Setter
     httpx
+;
+py-func=
+    poll
+    flush
+    Message.error
+
+py-exc=
+    KafkaException
+    KafkaError

instrumentation/opentelemetry-instrumentation-confluent-kafka/src/opentelemetry/instrumentation/confluent_kafka/__init__.py

@@ -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
@@ -30,12 +30,10 @@ Usage
     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)
@@ -43,11 +41,10 @@ Usage
             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:
@@ -57,19 +54,26 @@ Usage
             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()
@@ -85,15 +89,12 @@ for example:
     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