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Do you mean the autoname suffix (<https://www.pulumi.com/docs/intro/concepts/resources/names/#autonaming>)?

If so you can always just set the resource name explicitly

<@U03KJEP6H1Q> you can retrieve the ASG from within the user data:

```# cloudformation stack name
STACK_NAME=$(aws ec2 describe-instances --instance-id $(curl -s <http://169.254.169.254/latest/dynamic/instance-identity/document> | jq .instanceId -r) --region eu-west-1 --query "Reservations[*].Instances[*].Tags[?Key=='aws:cloudformation:stack-name'].Value" --output text)
# aws region
REGION=$(curl -s <http://169.254.169.254/latest/dynamic/instance-identity/document> | jq .region -r)
# the name of the ASG this instance is in
ASG_NAME=$(aws ec2 describe-instances --instance-id $(curl -s <http://169.254.169.254/latest/dynamic/instance-identity/document> | jq .instanceId -r) --region eu-west-1 --query "Reservations[*].Instances[*].Tags[?Key=='aws:autoscaling:groupName'].Value" --output text)```

<@U02J3T6A8LB> thank you! as far as I could see, there is no option to do that on the autoscaling group (not on cluster.addAutoscalingGroup and cluster.createAutoScalingGroup)

<@UCWG26BH7> I think that will work!! thank you

you'll need to make sure it has an IAM role that allows it to read those values of course