DRAFT: Add configuration of log level and formatting for Auto Instrumentation

CHANGELOG.md

@@ -17,6 +17,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#4094](https://github.com/open-telemetry/opentelemetry-python/pull/4094))
 - Implement events sdk
   ([#4176](https://github.com/open-telemetry/opentelemetry-python/pull/4176))
+- Enable configuration of logging format and level in auto-instrumentation
+  ([#4203](https://github.com/open-telemetry/opentelemetry-python/pull/4203))
 
 ## Version 1.27.0/0.48b0 (2024-08-28)
 

opentelemetry-sdk/src/opentelemetry/sdk/_configuration/__init__.py

@@ -43,6 +43,8 @@
     OTEL_EXPORTER_OTLP_TRACES_PROTOCOL,
     OTEL_TRACES_SAMPLER,
     OTEL_TRACES_SAMPLER_ARG,
+    OTEL_LOG_LEVEL,
+    OTEL_PYTHON_LOG_FORMAT,
 )
 from opentelemetry.sdk.metrics import MeterProvider
 from opentelemetry.sdk.metrics.export import (
@@ -238,6 +240,15 @@ def _init_logging(
     exporters: Dict[str, Type[LogExporter]],
     resource: Resource = None,
 ):
+    log_format = environ.get(OTEL_PYTHON_LOG_FORMAT, logging.BASIC_FORMAT)
+    levels = {
+        "debug": logging.DEBUG,
+        "info": logging.INFO,
+        "warning": logging.WARNING,
+        "error": logging.ERROR,
+    }
+    log_level = levels.get(environ.get(OTEL_LOG_LEVEL, "info").lower(), logging.INFO)
+
     provider = LoggerProvider(resource=resource)
     set_logger_provider(provider)
 
@@ -249,7 +260,11 @@ def _init_logging(
 
     handler = LoggingHandler(level=logging.NOTSET, logger_provider=provider)
 
-    logging.getLogger().addHandler(handler)
+    logging.basicConfig(
+        format=log_format,
+        level=log_level,
+        handlers=(handler,)
+    )
 
 
 def _import_exporters(
@@ -444,7 +459,8 @@ class _OTelSDKConfigurator(_BaseConfigurator):
 
     Initializes several crucial OTel SDK components (i.e. TracerProvider,
     MeterProvider, Processors...) according to a default implementation. Other
-    Configurators can subclass and slightly alter this initialization.
+    Configurators can subclass and slightly alter
+     this initialization.
 
     NOTE: This class should not be instantiated nor should it become an entry
     point on the `opentelemetry-sdk` package. Instead, distros should subclass

opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py

@@ -53,6 +53,10 @@
 The :envvar:`OTEL_LOG_LEVEL` environment variable sets the log level used by the SDK logger
 Default: "info"
 """
+# TODO: OTEL_LOG_LEVEL vs OTEL_PYTHON_LOG_LEVEL
+# TODO: add docstring
+OTEL_PYTHON_LOG_FORMAT = "OTEL_PYTHON_LOG_FORMAT"
+OTEL_PYTHON_LOG_LEVEL = "OTEL_PYTHON_LOG_LEVEL"
 
 OTEL_TRACES_SAMPLER = "OTEL_TRACES_SAMPLER"
 """