API: Added access logs to gunicorn deployment.

Any future API logs will be also functional,
both in uvicorn only and with gunicorn.

Author: xsedla1o

dp3/api/internal/dp_logger.py

@@ -56,6 +56,7 @@ def setup_logger(self, name: str, log_file: str):
         logger = logging.getLogger(name)
         logger.addHandler(log_handler)
         logger.setLevel(logging.INFO)
+        logger.propagate = False
 
         return logger
 

dp3/api/main.py

@@ -1,4 +1,5 @@
 import json
+import logging
 
 from fastapi import FastAPI
 from fastapi.exception_handlers import request_validation_exception_handler
@@ -8,6 +9,16 @@
 from dp3.api.internal.config import CONFIG, DATAPOINTS_INGESTION_URL_PATH, DP_LOGGER, ROOT_PATH
 from dp3.api.routers import control, entity, root
 
+uvicorn_logger = logging.getLogger("uvicorn")
+uvicorn_access_logger = logging.getLogger("uvicorn.access")
+gunicorn_error_logger = logging.getLogger("gunicorn.error")
+
+if len(gunicorn_error_logger.handlers) > 0:  # We are running in gunicorn
+    logging.root.handlers = gunicorn_error_logger.handlers
+    uvicorn_access_logger.handlers = gunicorn_error_logger.handlers
+elif len(uvicorn_logger.handlers) > 0:  # We are running only in uvicorn
+    logging.root.handlers = uvicorn_logger.handlers
+
 # Create new FastAPI app
 app = FastAPI(root_path=ROOT_PATH)