fix: SonarQube failed conditions on new code.

- Deleted `src/instana/util/gunicorn.py` since the code is duplicated in `running_in_gunicorn()` function from `src/instana/log.py`.
- Adapted code to import `running_in_gunicorn()` from `src/instana/log.py`.
- Add tests for `running_in_gunicorn()` to increase the coverage on new code.

Signed-off-by: Paulo Vital <paulo.vital@ibm.com>

Author: pvital

pyproject.toml

@@ -65,6 +65,7 @@ dev = [
     "pytest-mock",
     "pre-commit>=3.0.0",
     "ruff",
+    "gunicorn",
 ]
 
 [project.urls]

src/instana/instrumentation/fastapi.py

@@ -20,8 +20,7 @@
     from starlette.middleware import Middleware
 
     from instana.instrumentation.asgi import InstanaASGIMiddleware
-    from instana.log import logger
-    from instana.util.gunicorn import running_in_gunicorn
+    from instana.log import logger, running_in_gunicorn
     from instana.util.traceutils import get_tracer_tuple
 
     if TYPE_CHECKING:

src/instana/log.py

@@ -1,4 +1,4 @@
-# (c) Copyright IBM Corp. 2021
+# (c) Copyright IBM Corp. 2021, 2026
 # (c) Copyright Instana Inc. 2016
 
 from __future__ import print_function
@@ -10,7 +10,7 @@
 logger = None
 
 
-def get_standard_logger():
+def get_standard_logger() -> logging.Logger:
     """
     Retrieves and configures a standard logger for the Instana package
 
@@ -28,7 +28,7 @@ def get_standard_logger():
     return standard_logger
 
 
-def get_aws_lambda_logger():
+def get_aws_lambda_logger() -> logging.Logger:
     """
     Retrieves the preferred logger for AWS Lambda
 
@@ -39,7 +39,7 @@ def get_aws_lambda_logger():
     return aws_lambda_logger
 
 
-def glogging_available():
+def glogging_available() -> bool:
     """
     Determines if the gunicorn.glogging package is available
 
@@ -58,7 +58,7 @@ def glogging_available():
     return package_check
 
 
-def running_in_gunicorn():
+def running_in_gunicorn() -> bool:
     """
     Determines if we are running inside of a gunicorn process.
 
@@ -85,12 +85,11 @@ def running_in_gunicorn():
 
         return process_check
     except Exception:
-        logger.debug("Instana.log.running_in_gunicorn: ", exc_info=True)
         return False
 
 
-aws_env = os.environ.get("AWS_EXECUTION_ENV", "")
-env_is_aws_lambda = "AWS_Lambda_" in aws_env
+env_is_aws_lambda = "AWS_Lambda_" in os.environ.get("AWS_EXECUTION_ENV", "")
+
 
 if running_in_gunicorn() and glogging_available():
     logger = logging.getLogger("gunicorn.error")