Uvicorn logging settings (#531)

mlserver/logging.py

@@ -2,6 +2,7 @@
 import sys
 
 from logging import Formatter, StreamHandler
+import logging.config
 
 from .settings import Settings
 
@@ -15,6 +16,10 @@ def get_logger():
     return logger
 
 
+def apply_logging_file(logging_settings: str):
+    logging.config.fileConfig(fname=logging_settings, disable_existing_loggers=False)
+
+
 def configure_logger(settings: Settings = None):
     logger = get_logger()
 
@@ -30,4 +35,7 @@ def configure_logger(settings: Settings = None):
     if settings and settings.debug:
         logger.setLevel(logging.DEBUG)
 
+    if settings and settings.logging_settings:
+        apply_logging_file(settings.logging_settings)
+
     return logger

mlserver/rest/server.py

@@ -53,7 +53,10 @@ async def delete_custom_handlers(self, model: MLModel):
 
     async def start(self):
         cfg = uvicorn.Config(
-            self._app, host=self._settings.host, port=self._settings.http_port
+            self._app,
+            host=self._settings.host,
+            port=self._settings.http_port,
+            log_config=self._settings.logging_settings,
         )
         self._server = _NoSignalServer(cfg)
         await self._server.serve()

mlserver/settings.py

@@ -89,6 +89,10 @@ class Config:
     `None` to disable it
     """
 
+    # Logging settings
+    logging_settings: Optional[str] = None
+    """Path to logging config file"""
+
 
 class ModelParameters(BaseSettings):
     """