fix(medcat-service) - Fix access log format not being set using uvicorn worker (#199)

Author: alhendrickson

medcat-service/medcat_service/log_config.py

@@ -0,0 +1,35 @@
+log_config = {
+    "version": 1,
+    "disable_existing_loggers": False,
+    "formatters": {
+        "access": {
+            "()": "uvicorn.logging.AccessFormatter",
+            "fmt": '%(asctime)s [ACCESS] - %(client_addr)s - "%(request_line)s" %(status_code)s',
+            "use_colors": True,
+        },
+        "default": {
+            "()": "uvicorn.logging.DefaultFormatter",
+            "fmt": "%(asctime)s [%(levelname)s] %(name)s: %(message)s",
+            "use_colors": True,
+        },
+    },
+    "handlers": {
+        "access": {
+            "class": "logging.StreamHandler",
+            "formatter": "access",
+        },
+        "default": {
+            "formatter": "default",
+            "class": "logging.StreamHandler",
+        },
+    },
+    "loggers": {
+        # "root": {
+        #     "handlers": ["default"],
+        #     "level": settings.app_log_level,
+        # },
+        "uvicorn": {"handlers": ["default"], "level": "DEBUG", "propagate": True},
+        "uvicorn.access": {"handlers": ["access"], "level": "INFO", "propagate": False},
+        "uvicorn.error": {"level": "INFO", "propagate": False},
+    },
+}

medcat-service/medcat_service/main.py

@@ -1,14 +1,20 @@
+import logging
+import logging.config
+
 import gradio as gr
 from fastapi import FastAPI, Request
 from fastapi.responses import JSONResponse
 
 from medcat_service.demo.gradio_demo import io
 from medcat_service.dependencies import get_settings
+from medcat_service.log_config import log_config
 from medcat_service.routers import admin, health, process
 from medcat_service.types import HealthCheckFailedException
 
 settings = get_settings()
 
+logging.config.dictConfig(log_config)
+
 app = FastAPI(
     title="MedCAT Service",
     summary="MedCAT Service",
@@ -40,4 +46,5 @@ async def healthcheck_failed_exception_handler(request: Request, exc: HealthChec
     # Only run this when directly executing `python main.py` for local dev.
     import os
     import uvicorn
+
     uvicorn.run("medcat_service.main:app", host="0.0.0.0", port=int(os.environ.get("SERVER_PORT", 8000)))

medcat-service/start_service_production.sh

@@ -33,7 +33,7 @@ if [ -z ${SERVER_WORKER_TIMEOUT+x} ]; then
   echo "SERVER_WORKER_TIMEOUT is unset -- setting to default (sec): $SERVER_WORKER_TIMEOUT";
 fi
 
-
+# Note - SERVER_ACCESS_LOG_FORMAT is unused when worker-class is set to UvicornWorker
 SERVER_ACCESS_LOG_FORMAT="%(t)s [ACCESS] %(h)s \"%(r)s\" %(s)s \"%(f)s\" \"%(a)s\""
 
 # start the server