Merge pull request #1047 from RasaHQ/ENG-680-DEFAULT_KEEP_ALIVE_TIMEOUT

Fix connection to action server - [ENG 680]

rasa_sdk/constants.py

@@ -1,5 +1,6 @@
 DEFAULT_SERVER_PORT = 5055
 DEFAULT_SANIC_WORKERS = 1
+DEFAULT_KEEP_ALIVE_TIMEOUT = 120  # in seconds
 ENV_SANIC_WORKERS = "ACTION_SERVER_SANIC_WORKERS"
 DEFAULT_LOG_LEVEL_LIBRARIES = "ERROR"
 ENV_LOG_LEVEL_LIBRARIES = "LOG_LEVEL_LIBRARIES"

rasa_sdk/endpoint.py

@@ -15,7 +15,7 @@
 
 from rasa_sdk import utils
 from rasa_sdk.cli.arguments import add_endpoint_arguments
-from rasa_sdk.constants import DEFAULT_SERVER_PORT
+from rasa_sdk.constants import DEFAULT_KEEP_ALIVE_TIMEOUT, DEFAULT_SERVER_PORT
 from rasa_sdk.executor import ActionExecutor
 from rasa_sdk.interfaces import ActionExecutionRejection, ActionNotFoundException
 from rasa_sdk.plugin import plugin_manager
@@ -160,6 +160,7 @@ def run(
     ssl_password: Optional[Text] = None,
     auto_reload: bool = False,
     tracer_provider: Optional[TracerProvider] = None,
+    keep_alive_timeout: int = DEFAULT_KEEP_ALIVE_TIMEOUT,
 ) -> None:
     """Starts the action endpoint server with given config values."""
     logger.info("Starting action endpoint server...")
@@ -169,6 +170,7 @@ def run(
         auto_reload=auto_reload,
         tracer_provider=tracer_provider,
     )
+    app.config.KEEP_ALIVE_TIMEOUT = keep_alive_timeout
     ## Attach additional sanic extensions: listeners, middleware and routing
     logger.info("Starting plugins...")
     plugin_manager().hook.attach_sanic_app_extensions(app=app)