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it sure does, just use string interpolation in your language of choice

you may have to do some manipulation (ie use an apply) if you're using an output in the string

Thanks <@UCWG26BH7>!

I should be able to get the region from `pulumi.Config()`, but I’m not sure how to grab the CloudFormation StackName from an AutoScalingGroup b/c it needs to be interpolated in `userData` , which gets passed to the AutoScalingGroup constructor.
```const userData = 
`#!/bin/bash
/usr/local/bin/cfn-signal --stack ${output of autoScalingGroup.stack.name...}`

const autoScalingGroup = new awsx.autoscaling.AutoScalingGroup("name", { userData });```
This feels like a circular reference and I’m not sure how to accomplish it.

this is how I've done it previously
```let userData = Buffer.from(`#!/bin/bash
STACK_NAME=$(aws ec2 describe-instances --instance-id $(curl -s <http://169.254.169.254/latest/dynamic/instance-identity/document> | jq .instanceId -r) --region eu-west-1 --query 'Reservations[*].Instances[*].Tags[?Key==\`aws:cloudformation:stack-name\`].Value' --output text)
REGION=$(curl -s <http://169.254.169.254/latest/dynamic/instance-identity/document> | jq .region -r)
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)
echo "sending cfn-signal"
/opt/aws/bin/cfn-signal --resource \${ASG_NAME} --stack \${STACK_NAME} --region \${REGION}`).toString('base64');```

i just grabbed the cloudformation stack name from the ec2 metadata, seemed easier

Cool, thanks. what’s the IP address in this example?

it's the instance metadata ip address: <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html>

oh gotcha, thanks again, really appreciate it