服务器停止时自动从 ELB 中删除实例

2024-5-29 • tag-icon

当停止实例时，如何自动从其 LoadBalance（ELB）中删除实例？

我尝试创建一个关机脚本并将其放在 chkconfig 上，但是它不起作用：

#!/bin/bash
# loggly authorization 
#
# chkconfig: 2345 20 10
# description: add host logs to loggly
# Source function library.
. /etc/init.d/functions
. /etc/profile.d/aws-apitools-common.sh

LB=MyLB
OK="\033[60G\e[0;32mOK\e[0m"
EC2_INSTANCE_ID="`wget -q -O - http://169.254.169.254/latest/meta-data/instance-id || die \"wget instance-id has failed: $?\"`"
export JAVA_HOME=/usr/java/default

start() {
    echo "started service"
}

stop() {
        echo "removing $EC2_INSTANCE_ID from Load Balancer"
        elb-deregister-instances-from-lb $LB --instances=$EC2_INSTANCE_ID -I $AWS_ACCESS_KEY_ID -S $AWS_SECRET_ACCESS_KEY --quiet
        sleep 20
}


restart() {
        stop
        sleep 5
        start
}

case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        restart
        ;;
  *)
        echo $"Usage: $0 {start|stop|restart}"
        exit 1
esac

exit $?

答案1

必须有一个/var/lock/subsys/my_app文件

将 atouch /var/lock/subsys/my_app放在启动函数中，将 arm /var/lock/subsys/my_app放在停止函数中

答案1

相关内容