k8s lifecycle 之 preStop

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环境： 因容器里服务不能直接被kill -9 强制杀掉，切pid 不为1 ，因此需要在容器关掉之前进行服务关闭操作，用到k8s 功能 prestop   关闭服务脚本： $  cat stop.sh #!/bin/sh   echo "" echo "begin to shutdown..."   #根据端口号查一下pid PID=$(ps -ef   |grep java |grep -v "grep" |awk '{print $2}')   if [ ! -n "$PID" ];   then     echo ""     echo "pid is not exist"     exit 1 fi   #do not use "kill -9" for stoppint service kill $PID   #看看进程还在吗 UP_STATUS=$(ps -ef   |grep java |grep -v "grep" |awk '{print $2}' | wc -l)   if (($UP_STATUS <= 0));   then     echo "shutdown succesful..."   else     echo ""     echo "pid = $PID"     TIME_OUT=90     TIME_COUNT=0     while [ $TIME_COUNT -le $TIME_OUT ]     do       UP_STATUS=$(ps -ef   |grep java |grep -v "grep" |awk '{print $2}' | wc -l)       if (($UP_STATUS <= 0))       then         TIME_COUNT=999       else         TIME_COUNT=$(($TIME_COUNT+1))       fi       echo "waiting for shutdown ..."       sleep 1     done      if (($UP_STATUS <= 0))       then         echo ""         echo "shutdown successful..."       else         echo ""         ps -ef | grep "$PID" | grep -v grep | grep "$SERVER_NAME"         echo ""         echo "shutdown failed..."     fi      fi     用法： 在容器deployment 中添加：         lifecycle:           preStop:             exec:               command:               - /bin/sh               - /tmp/stop.sh     可解决此问题。