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aws-samples / amazon-ec2-nice-dcv-samples

AWS CloudFormation templates to provision Linux or Windows EC2 instances with GUI running NICE DCV remote display server. Includes option to install GPU drivers
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Stack creation fails with "Attribute: PublicIp was not found for resource" when assignStaticIP parameter is "No" #2

Closed elduds closed 1 year ago

elduds commented 1 year ago

https://github.com/aws-samples/amazon-ec2-nice-dcv-samples/blob/c0b9957144b7b1d5b477216742ed9c3f346a60b2/cfn/AmazonLinux2-NICE-DCV.yaml#L535

Suggest adding a condition to the output eg.

  DCVwebConsole:
    Condition: useElasticIP
    Description: DCV web console (login as ec2-user)
    Value: !Sub "https://${ec2Instance.PublicIp}:${listenPort}"
limmike commented 1 year ago

Thanks for the report.

Stack creation fails as your EC2 is not provisioned in a public subnet, i.e. it does not have a public IP. For EC2 in public subnet, assignStaticIP provides option to associate a static internet IP via Elastic IP.

As per EC2 instance in private subnet, you can either remove or comment out the last 3 lines in yaml file.

limmike commented 1 year ago

Add displayPublicIP CloudFormation parameter. Set this to No if EC2 has no public IP. Editing of template file is no longer required.