问我怎样才能更新码头撰写服务中的芹菜工人，却又能让长期运行的任务在他们完成之前保持活动状态？

EN

docker-compose up -d --no-deps --scale $SERVICE_NAME=2 --no-recreate $SERVICE_NAME

startup () {
  SERVICE_NAME=${1?"Usage: docker_update <SERVICE_NAME> <COMMAND>"}
  COMMAND=${2?"Usage: docker_update <SERVICE_NAME> <COMMAND>"}
  docker run \
         -d \
         --name $SERVICE_NAME \
         SOME_DOCKER_IMAGE \
         $COMMAND
}

update () {
  SERVICE_NAME=${1?"Usage: docker_update <SERVICE_NAME> <COMMAND>"}
  COMMAND=${2?"Usage: docker_update <SERVICE_NAME> <COMMAND>"}
  echo "[INFO] Updating docker service $SERVICE_NAME"
  OLD_CONTAINER_ID=$(docker ps --format "table {{.ID}}  {{.Names}}  {{.CreatedAt}}" | grep $SERVICE_NAME | tail -n 1 | awk -F  "  " '{print $1}')
  OLD_CONTAINER_NAME=$(docker ps --format "table {{.ID}}  {{.Names}}  {{.CreatedAt}}" | grep $SERVICE_NAME | tail -n 1 | awk -F  "  " '{print $2}')

  TEMP_UUID=`uuidgen`
  TEMP_CONTAINER_NAME="celery_worker_${TEMP_UUID}"

  echo "[INFO] rename $OLD_CONTAINER_NAME to $TEMP_CONTAINER_NAME"
  docker rename $OLD_CONTAINER_NAME $TEMP_CONTAINER_NAME

  echo "[INFO] start new/updated celery queue"
  startup $SERVICE_NAME $COMMAND

  echo "[INFO] send SIGTERM to $TEMP_CONTAINER_NAME for warm shutdown"
  docker kill --signal=SIGTERM $TEMP_CONTAINER_NAME

#  Optional waiting for the container to finish
  echo "[INIT] waiting for old docker container to finish"
  docker wait $TEMP_CONTAINER_NAME
}

SERVICE_NAME=${1?"Usage: docker_update <SERVICE_NAME>"}
COMMAND=${2?"Usage: docker_update <SERVICE_NAME> <COMMAND>"}
echo "[INFO] checking if this service already runs"
docker ps --format "table {{.ID}}  {{.Names}}  {{.CreatedAt}}" | grep $SERVICE_NAME

if [ $? -eq 0 ]
then
  echo "[INFO] CONTAINER with name $SERVICE_NAME is online -> update"
  update $SERVICE_NAME $COMMAND
else
  echo "[INFO] CONTAINER with name $SERVICE_NAME is **not** online -> starting"
  startup $SERVICE_NAME $COMMAND
fi