微服务集群环境零停机发布脚本_服务无停机 发布

#通知负载均衡haproxy器将我下线，负载均衡有3个管理端口，分别管理3个内核进程。
curl -u admin:123456 -d "s=app_198_1&action=drain&b=#12" -o /dev/null   "http://10.0.0.1:19100/admin_status"
curl -u admin:123456 -d "s=app_198_1&action=drain&b=#12" -o /dev/null   "http://10.0.0.1:19101/admin_status"
curl -u admin:123456 -d "s=app_198_1&action=drain&b=#12" -o /dev/null   "http://10.0.0.1:19102/admin_status"

#等待前端接口超时时间过去
echo "等待负载均衡排干请求 ......"
sleep 15s

#给JVM发送shutdown指令，触发优雅停机
SERVERPID1=`netstat -ntlp  | grep 15000 | awk -F [/]  '{print $1}'|awk -F ' '  '{print $NF}'`

if [ "$SERVERPID1" != "" ]
  then    kill $SERVERPID1
fi

#等待优雅停机结束,发现端口占用消失。
waitShutDownTimes=0
shutDownTimeOut=10
while true
do
 SERVERPID1=`netstat -ntlp  | grep 15000 | awk -F [/]  '{print $1}'|awk -F ' '  '{print $NF}'`
 if [ "$SERVERPID1" = "" ]
 then
   echo "端口占用进程消失....."
   break
 else
   if [ $waitShutDownTimes -gt $shutDownTimeOut  ]
   then
     kill -9 $SERVERPID1
     break
   fi
 fi
 echo "端口依然占用，等待ing......"
 sleep 1s
 waitShutDownTimes=$(($waitShutDownTimes+1))
 if [ $waitShutDownTimes -gt  $shutDownTimeOut  ]
 then
  echo "等待端口占用超时，未能正常结束进程，5s后将强制关闭进程，如不需要强制关闭，请Crtl+C中断脚本执行"
  sleep 5s
 fi
done
#运行同步程序命令

echo "开始进行程序同步。。。"
rsync -avzhP --delete ccsync@10.0.0.2::app1 /apps/app1/app-service/
echo "同步程序完毕...."

sleep 1s

#启动应用

nohup /usr/lib/jvm/java-1.8.0/bin/java -server -Xms4g -Xmx4g -Xmn3g -XX:SurvivorRatio=8 -Xss256K -Djava.awt.headless=true -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=256m -XX:CompressedClassSpaceSize=128m -XX:ReservedCodeCacheSize=128m -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseAdaptiveSizePolicy -XX:+CMSClassUnloadingEnabled -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=10 -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=75 -XX:CMSMaxAbortablePrecleanTime=5 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/apps/dumpfiles/app1 -jar /apps/app1/app-service/app1-0.0.1-SNAPSHOT.jar  > /apps/logs/app1.catalog 2>&1 &

#检测应用日志，是否启动完毕。

startUpCheckTimes=0
startUpCheckTimeOut=30
while true
do
  startUpFinished=`grep 'SpringBootApplication1:::main::::::started succ...::::' /apps/logs/app1.catalog`
   if [ "$startUpFinished" != "" ]
   then
      echo "检测到应用已经重启完毕....$startUpFinished"
      break
   else
      echo "未检测到启动成功标志，等待ing"
      sleep 2s
      startUpCheckTimes=$(($startUpCheckTimes+1))
      if [ $startUpCheckTimes -gt $startUpCheckTimeOut  ]
      then
         echo "检测应用启动超时.....检测停止，接下来将检测应用的接口是否正常。。。"
         break
      fi
   fi
done

sleep 2s

#检测应用本身状态
#check app
appStatus=`curl -o /dev/null -s -m 10 --connect-timeout 10 -w %{http_code}  http://10.0.0.3:15000/service/check`
if [ "$appStatus" = "200"  ]
then
   echo "应用状态正常..."
   #check db
   dbStatus=`curl -o /dev/null -s -m 10 --connect-timeout 10 -w %{http_code}  http://10.0.0.3:15000/service/check?db=db1`
   if [ "$dbStatus" = "200"  ]
   then
      echo "DB状态正常..."
      #通知上线
      sleep 1s
      curl -u admin:123456 -d "s=app_198_1&action=ready&b=#12" -o /dev/null   "http://10.0.0.1:19100/admin_status"
      curl -u admin:123456 -d "s=app_198_1&action=ready&b=#12" -o /dev/null   "http://10.0.0.1:19101/admin_status"
      curl -u admin:123456 -d "s=app_198_1&action=ready&b=#12" -o /dev/null   "http://10.0.0.1:19102/admin_status"
      echo "通知负载均衡上线成功....."
   else
      echo "DB状态异常..."
   fi
else
    echo "应用状态异常..."
fi

tail -f /apps/logs/app1.catalog