从接收后开始python文件

Question

我有这个接收后挂钩

#!/bin/bash
while read oldrev newrev ref
do
    # only checking out the master (or whatever branch you would like to deploy)
    if [[ $ref =~ .*/master$ ]];
    then
        echo "Master ref received.  Deploying master branch to production..."
        git --work-tree=/home/prod/app --git-dir=/home/prod/chat.git/ checkout -f
        killall python3 &
        python3 /home/prod/app/server/server.py &
    else
        echo "Ref $ref successfully received.  Doing nothing: only the master branch may be deployed on this server."
    fi
done

运行并签出正常，但是server.py进程未启动或此后仍未运行。有什么办法可以从钩子启动python脚本，并使它保持运行状态？