https://serverfault.com/questions/704806/how-to-get-autoscaling-group-instances-ip-adresses
#!/bin/bash for i in `aws autoscaling describe-auto-scaling-groups --auto-scaling-group-name ASGName | grep -i instanceid | awk '{ print $2}' | cut -d',' -f1| sed -e 's/"//g'` do aws ec2 describe-instances --instance-ids $i | grep -i PrivateIpAddress | awk '{ print $2 }' | head -1 | cut -d"," -f1 done;
aws autoscaling describe-auto-scaling-instances --region us-east-1 --output text \ --query "AutoScalingInstances[?AutoScalingGroupName=='ASG-GROUP-NAME'].InstanceId" \ | xargs -n1 aws ec2 describe-instances --instance-ids $ID --region us-east-1 \ --query "Reservations[].Instances[].PrivateIpAddress" --output text