di: do not wire core karapace

src/karapace/coordinator/master_coordinator.py

@@ -10,12 +10,10 @@
 from aiokafka.errors import KafkaConnectionError
 from aiokafka.helpers import create_ssl_context
 from aiokafka.protocol.commit import OffsetCommitRequest_v2 as OffsetCommitRequest
-from dependency_injector.wiring import inject, Provide
 from karapace.config import Config
 from karapace.coordinator.schema_coordinator import SchemaCoordinator, SchemaCoordinatorStatus
 from karapace.kafka.types import DEFAULT_REQUEST_TIMEOUT_MS
 from karapace.typing import SchemaReaderStoppper
-from schema_registry.telemetry.container import TelemetryContainer
 from schema_registry.telemetry.tracer import Tracer
 from threading import Thread
 from typing import Final
@@ -40,8 +38,7 @@ class MasterCoordinator:
     5 milliseconds.
     """
 
-    @inject
-    def __init__(self, config: Config, tracer: Tracer = Provide[TelemetryContainer.tracer]) -> None:
+    def __init__(self, config: Config) -> None:
         super().__init__()
         self._config: Final = config
         self._kafka_client: AIOKafkaClient | None = None
@@ -50,7 +47,7 @@ def __init__(self, config: Config, tracer: Tracer = Provide[TelemetryContainer.t
         self._thread: Thread = Thread(target=self._start_loop, daemon=True)
         self._loop: asyncio.AbstractEventLoop | None = None
         self._schema_reader_stopper: SchemaReaderStoppper | None = None
-        self.tracer = tracer
+        self.tracer = Tracer()
 
     def set_stoppper(self, schema_reader_stopper: SchemaReaderStoppper) -> None:
         self._schema_reader_stopper = schema_reader_stopper

src/karapace/kafka/admin.py

@@ -23,13 +23,24 @@
 from karapace.constants import TOPIC_CREATION_TIMEOUT_S
 from karapace.kafka.common import (
     _KafkaConfigMixin,
+    KafkaClientParams,
     raise_from_kafkaexception,
     single_futmap_result,
     UnknownTopicOrPartitionError,
 )
+from schema_registry.telemetry.tracer import Tracer
+from typing_extensions import Unpack
 
 
 class KafkaAdminClient(_KafkaConfigMixin, AdminClient):
+    def __init__(
+        self,
+        bootstrap_servers: Iterable[str] | str,
+        **params: Unpack[KafkaClientParams],
+    ) -> None:
+        self.tracer = Tracer()
+        super().__init__(bootstrap_servers, **params)
+
     def new_topic(
         self,
         name: str,

src/karapace/kafka/common.py

@@ -17,9 +17,6 @@
 from collections.abc import Callable, Iterable
 from concurrent.futures import Future
 from confluent_kafka.error import KafkaError, KafkaException
-from dependency_injector.wiring import inject, Provide
-from schema_registry.telemetry.container import TelemetryContainer
-from schema_registry.telemetry.tracer import Tracer
 from typing import Any, Literal, NoReturn, Protocol, TypedDict, TypeVar
 from typing_extensions import Unpack
 
@@ -125,17 +122,14 @@ class _KafkaConfigMixin:
     extract configuration, initialization and connection verification.
     """
 
-    @inject
     def __init__(
         self,
         bootstrap_servers: Iterable[str] | str,
         verify_connection: bool = True,
-        tracer: Tracer = Provide[TelemetryContainer.tracer],
         **params: Unpack[KafkaClientParams],
     ) -> None:
         self._errors: set[KafkaError] = set()
         self.log = logging.getLogger(f"{self.__module__}.{self.__class__.__qualname__}")
-        self.tracer = tracer
 
         super().__init__(self._get_config_from_params(bootstrap_servers, **params))  # type: ignore[call-arg]
         self._activate_callbacks()

src/karapace/offset_watcher.py

@@ -4,8 +4,7 @@
 Copyright (c) 2023 Aiven Ltd
 See LICENSE for details
 """
-from dependency_injector.wiring import inject, Provide
-from schema_registry.telemetry.container import TelemetryContainer
+
 from schema_registry.telemetry.tracer import Tracer
 from threading import Condition
 
@@ -17,13 +16,12 @@ class OffsetWatcher:
     correct as long as no unclean leader election is performed.
     """
 
-    @inject
-    def __init__(self, tracer: Tracer = Provide[TelemetryContainer.tracer]) -> None:
+    def __init__(self) -> None:
         # Condition used to protected _greatest_offset, any modifications to that object must
         # be performed with this condition acquired
         self._condition = Condition()
         self._greatest_offset = -1  # Would fail if initially this is 0 as it will be first offset ever.
-        self.tracer = tracer
+        self.tracer = Tracer()
 
     def greatest_offset(self) -> int:
         with self.tracer.get_tracer().start_as_current_span(

src/schema_registry/__main__.py

@@ -7,12 +7,8 @@
 from schema_registry.factory import create_karapace_application, karapace_schema_registry_lifespan
 from schema_registry.telemetry.container import TelemetryContainer
 
-import karapace.coordinator.master_coordinator
-import karapace.kafka.common
-import karapace.offset_watcher
 import schema_registry.controller
 import schema_registry.factory
-import schema_registry.reader
 import schema_registry.routers.compatibility
 import schema_registry.routers.config
 import schema_registry.routers.health
@@ -42,10 +38,6 @@
         modules=[
             schema_registry.telemetry.setup,
             schema_registry.telemetry.middleware,
-            schema_registry.reader,
-            karapace.offset_watcher,
-            karapace.coordinator.master_coordinator,
-            karapace.kafka.common,
         ]
     )
 

src/schema_registry/reader.py

@@ -24,7 +24,6 @@
 from collections.abc import Mapping, Sequence
 from confluent_kafka import Message, TopicCollection, TopicPartition
 from contextlib import closing, ExitStack
-from dependency_injector.wiring import inject, Provide
 from enum import Enum
 from jsonschema.validators import Draft7Validator
 from karapace import constants
@@ -46,7 +45,6 @@
 from karapace.statsd import StatsClient
 from karapace.typing import JsonObject, SchemaId, SchemaReaderStoppper, Subject, Version
 from karapace.utils import json_decode, JSONDecodeError, shutdown
-from schema_registry.telemetry.container import TelemetryContainer
 from schema_registry.telemetry.tracer import Tracer
 from threading import Event, Lock, Thread
 from typing import Final
@@ -133,15 +131,13 @@ def _create_admin_client_from_config(config: Config) -> KafkaAdminClient:
 
 
 class KafkaSchemaReader(Thread, SchemaReaderStoppper):
-    @inject
     def __init__(
         self,
         config: Config,
         offset_watcher: OffsetWatcher,
         key_formatter: KeyFormatter,
         database: KarapaceDatabase,
         master_coordinator: MasterCoordinator | None = None,
-        tracer: Tracer = Provide[TelemetryContainer.tracer],
     ) -> None:
         Thread.__init__(self, name="schema-reader")
         self.master_coordinator = master_coordinator
@@ -156,7 +152,7 @@ def __init__(
         self._offset_watcher = offset_watcher
         self.stats = StatsClient(config=config)
         self.kafka_error_handler: KafkaErrorHandler = KafkaErrorHandler(config=config)
-        self.tracer = tracer
+        self.tracer = Tracer()
 
         # Thread synchronization objects
         # - offset is used by the REST API to wait until this thread has

src/schema_registry/registry.py

@@ -26,12 +26,13 @@
 )
 from karapace.in_memory_database import InMemoryDatabase
 from karapace.key_format import KeyFormatter
-from karapace.messaging import KarapaceProducer
 from karapace.offset_watcher import OffsetWatcher
 from karapace.schema_models import ParsedTypedSchema, SchemaType, SchemaVersion, TypedSchema, ValidatedTypedSchema, Versioner
 from karapace.schema_references import LatestVersionReference, Reference
 from karapace.typing import JsonObject, Mode, SchemaId, Subject, Version
+from schema_registry.messaging import KarapaceProducer
 from schema_registry.reader import KafkaSchemaReader
+from schema_registry.telemetry.tracer import Tracer
 
 import asyncio
 import logging
@@ -43,6 +44,7 @@ class KarapaceSchemaRegistry:
     def __init__(self, config: Config) -> None:
         # TODO: compatibility was previously in mutable dict, fix the runtime config to be distinct from static config.
         self.config = config
+        self.tracer = Tracer()
         self._key_formatter = KeyFormatter()
 
         offset_watcher = OffsetWatcher()

tests/conftest.py

@@ -10,14 +10,10 @@
 from tempfile import mkstemp
 
 import json
-import karapace.coordinator.master_coordinator
-import karapace.kafka.common
-import karapace.offset_watcher
 import os
 import pytest
 import re
 import schema_registry.controller
-import schema_registry.reader
 import schema_registry.telemetry.middleware
 import schema_registry.telemetry.setup
 import schema_registry.telemetry.tracer
@@ -208,12 +204,8 @@ def fixture_telemetry_container() -> TelemetryContainer:
     telemetry_container = TelemetryContainer()
     telemetry_container.wire(
         modules=[
-            schema_registry.reader,
             schema_registry.telemetry.setup,
             schema_registry.telemetry.middleware,
-            karapace.offset_watcher,
-            karapace.coordinator.master_coordinator,
-            karapace.kafka.common,
         ]
     )
     return telemetry_container

tests/unit/schema_registry/test_controller.py

@@ -77,3 +77,7 @@ async def test_forward_when_not_ready(schema_registry_container: SchemaRegistryC
             user=None,
             authorizer=None,
         )
+        with pytest.raises(HTTPResponse):
+            # prevent `future exception was never retrieved` warning logs
+            # future: <Future finished exception=HTTPResponse(status=200 body={'mock': 'response'})>
+            await mock_forward_func_future