DEIS no public IP's
By default, the provision scripts don't assign public IP addresses because the assumption is that the VPC you're provisioning into is internal to your network and that you have other means of access (like VPN).
However, you can easily provision your instances with public IPs by changing this line to True and redeploying.
We know this is confusing, and we're working to rewrite our EC2 provisioning scripts. Thanks for sticking with us!
You need to get your computer connected into the VPC somehow, try this and see if you can VPN into your VPC using it.