Problem Creating a cluster in an AWS VPC with CloudFormation and the default CoreOS cluster template

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It appears that CoreOS has a problem with its use of AutoScale when used to create a cluster in a VPC. The correct VpcId and SubnetId parameters for the VPC have been provided to CloudFormation create. It appears that the attributes CoreOSServerAutoScale uses doesn't work for a VPC. You may want to update your docs with an example of a template that works for a VPC cluster.

15:57:51 UTC-0800

CREATE_FAILED

AWS::AutoScaling::AutoScalingGroup

CoreOSServerAutoScale

The specified instance type can only be used in a VPC. A subnet ID or network interface ID is required to carry out the request. Launching EC2 instance failed.