Use OTLP log exporter by default in otel-distro (open-telemetry#3042)

* Use OTLP log exporter by default in otel-distro

* changelog

* sort imports

Author: Liudmila Molkova

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- `opentelemetry-distro` default to OTLP log exporter.
+  ([#3042](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3042))
 - `opentelemetry-instrumentation-sqlalchemy` Update unit tests to run with SQLALchemy 2
   ([#2976](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2976))
 - Add `opentelemetry-instrumentation-openai-v2` to `opentelemetry-bootstrap`

opentelemetry-distro/src/opentelemetry/distro/__init__.py

@@ -15,6 +15,7 @@
 import os
 
 from opentelemetry.environment_variables import (
+    OTEL_LOGS_EXPORTER,
     OTEL_METRICS_EXPORTER,
     OTEL_TRACES_EXPORTER,
 )
@@ -37,4 +38,5 @@ class OpenTelemetryDistro(BaseDistro):
     def _configure(self, **kwargs):
         os.environ.setdefault(OTEL_TRACES_EXPORTER, "otlp")
         os.environ.setdefault(OTEL_METRICS_EXPORTER, "otlp")
+        os.environ.setdefault(OTEL_LOGS_EXPORTER, "otlp")
         os.environ.setdefault(OTEL_EXPORTER_OTLP_PROTOCOL, "grpc")