#!/bin/bash

# deregister instance from elb
INSTANCE_ID=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
REGION=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone | sed s'/.$//')
/usr/local/bin/aws elb deregister-instances-from-load-balancer --region ${REGION} --load-balancer-name ${DEPLOYMENT_GROUP_NAME} --instances ${INSTANCE_ID}

# stop application
systemctl stop ${APPLICATION_NAME}