add gunicorn keepalive setting

api/docker/entrypoint.sh

@@ -35,6 +35,7 @@ else
       --worker-class ${SERVER_WORKER_CLASS:-gevent} \
       --worker-connections ${SERVER_WORKER_CONNECTIONS:-10} \
       --timeout ${GUNICORN_TIMEOUT:-200} \
+      --keep-alive ${GUNICORN_KEEP_ALIVE:-2} \
       app:app
   fi
 fi

docker/.env.example

@@ -142,6 +142,9 @@ CELERY_WORKER_CLASS=
 # it is recommended to set it to 360 to support a longer sse connection time.
 GUNICORN_TIMEOUT=360
 
+# Request keep-alive connection timeout. The default is 2.
+GUNICORN_KEEP_ALIVE=2
+
 # The number of Celery workers. The default is 1, and can be set as needed.
 CELERY_WORKER_AMOUNT=
 

docker/docker-compose.yaml

@@ -37,6 +37,7 @@ x-shared-env: &shared-api-worker-env
   SERVER_WORKER_CONNECTIONS: ${SERVER_WORKER_CONNECTIONS:-10}
   CELERY_WORKER_CLASS: ${CELERY_WORKER_CLASS:-}
   GUNICORN_TIMEOUT: ${GUNICORN_TIMEOUT:-360}
+  GUNICORN_KEEP_ALIVE: ${GUNICORN_KEEP_ALIVE:-2}
   CELERY_WORKER_AMOUNT: ${CELERY_WORKER_AMOUNT:-}
   CELERY_AUTO_SCALE: ${CELERY_AUTO_SCALE:-false}
   CELERY_MAX_WORKERS: ${CELERY_MAX_WORKERS:-}