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Retrieve comma-delimited list of Private IP addresses for EC2 instances in the same Autoscalinggroup
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| 1. Describe tags for the instance itself and retrieve the autoscaling group name | |
| GROUP=$(ec2-describe-tags --filter "resource-type=instance" --filter "resource-id=$(curl http://169.254.169.254/latest/meta-data/instance-id)" --filter "key=aws:autoscaling:groupName" | cut -f5) | |
| 2. Grab all the EC2 instance IDs for that autoscaling group | |
| IDS=$(aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names $GROUP --query 'AutoScalingGroups[0].Instances[].InstanceId' --output text | sed 's/\t/ /g') | |
| 3. For each instance-id, grab the private IP address of the instance | |
| IPS=$(aws ec2 describe-instances --instance-ids $IDS --region us-east-1 --query Reservations[].Instances[].PrivateIpAddress --output text | sed 's/\t/,/g') |
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