'How can i retrieve the instance id of an instance that is part of an auto scaling group?

I have this bash script that is trying to return the stopped instance Ids of an autoscaling group.

aws ec2 describe-instances --filter "Name=tag:aws:autoscaling:groupName,Values=devASG-123" --query "Reservations[].Instances[?State.Name==stopped].InstanceId" --output text --profile dev

This keeps returning a blank value even though I have instances that are stopped

How can i fix this?

Solution 1:^[1]

Try this:

aws --profile dev ec2 describe-instances --filters \
  "Name=tag:aws:autoscaling:groupName,Values=devASG-123" \
  "Name=instance-state-name,Values=stopped" \
  --query "Reservations[*].Instances[*].InstanceId

or use regex

aws --profile dev ec2 describe-instances --filters \
  "Name=tag:aws:autoscaling:groupName,Values=devASG-123" \
  "Name=instance-state-name,Values=stopped" | \
  grep -o '\"i-[0-9a-f]\\+\"' | grep -o '[^\"]\\+'

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Solution 1

'How can i retrieve the instance id of an instance that is part of an auto scaling group?

Solution 1:[1]

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Solution 1:^[1]