Expose gunicorn_worker_class via Config (#2084)

reflex/config.py

@@ -198,6 +198,9 @@ class Config(Base):
     # The username.
     username: Optional[str] = None
 
+    # The worker class used in production mode
+    gunicorn_worker_class: str = "uvicorn.workers.UvicornH11Worker"
+
     # Attributes that were explicitly set by the user.
     _non_default_attributes: Set[str] = pydantic.PrivateAttr(set())
 

reflex/config.pyi

@@ -69,6 +69,7 @@ class Config(Base):
     cp_backend_url: str
     cp_web_url: str
     username: Optional[str]
+    gunicorn_worker_class: str
 
     def __init__(
         self,
@@ -95,6 +96,7 @@ class Config(Base):
         cp_backend_url: Optional[str] = None,
         cp_web_url: Optional[str] = None,
         username: Optional[str] = None,
+        gunicorn_worker_class: Optional[str] = None,
         **kwargs
     ) -> None: ...
     @staticmethod

reflex/utils/exec.py

@@ -185,7 +185,7 @@ def run_backend_prod(
     """
     num_workers = processes.get_num_workers()
     config = get_config()
-    RUN_BACKEND_PROD = f"gunicorn --worker-class uvicorn.workers.UvicornH11Worker --preload --timeout {config.timeout} --log-level critical".split()
+    RUN_BACKEND_PROD = f"gunicorn --worker-class {config.gunicorn_worker_class} --preload --timeout {config.timeout} --log-level critical".split()
     RUN_BACKEND_PROD_WINDOWS = f"uvicorn --timeout-keep-alive {config.timeout}".split()
     app_module = f"{config.app_name}.{config.app_name}:{constants.CompileVars.APP}"
     command = (