Format gunicorn startup logs (#993)

Author: JerrySentry

gunicorn.conf.py

@@ -1,8 +1,48 @@
+import logging
 import os
 
+from gunicorn.glogging import Logger
 from prometheus_client import multiprocess
 
 
 def child_exit(server, worker):
     if worker and worker.pid and "PROMETHEUS_MULTIPROC_DIR" in os.environ:
         multiprocess.mark_process_dead(worker.pid)
+
+
+class CustomGunicornLogger(Logger):
+    """
+    A custom class for logging gunicorn startup logs, these are for the logging that takes
+    place before the Django app starts and takes over with its own defined logging formats.
+    This class ensures the gunicorn minimum log level to be INFO instead of the default ERROR.
+    """
+
+    def setup(self, cfg):
+        super().setup(cfg)
+        custom_format = "[%(levelname)s] [%(process)d] [%(asctime)s] %(message)s "
+        date_format = "%Y-%m-%d %H:%M:%S %z"
+        formatter = logging.Formatter(fmt=custom_format, datefmt=date_format)
+
+        # Update handlers with the custom formatter
+        for handler in self.error_log.handlers:
+            handler.setFormatter(formatter)
+        for handler in self.access_log.handlers:
+            handler.setFormatter(formatter)
+
+
+logconfig_dict = {
+    "loggers": {
+        "gunicorn.error": {
+            "level": "INFO",
+            "handlers": ["console"],
+            "propagate": False,
+        },
+        "gunicorn.access": {
+            "level": "INFO",
+            "handlers": ["console"],
+            "propagate": False,
+        },
+    }
+}
+
+logger_class = CustomGunicornLogger