Encrypted AMIs on AWS

[Abhay Rana]

AWS just announced support for sharing of encrypted AMIs[0], and I was wondering if this could be setup for the upcoming CoreOS releases. Right now, the process for setting up encrypted root partitions on CoreOS+AWS involves a AMI copy across to our account, which can now be avoided.

[0]: https://aws.amazon.com/about-aws/whats-new/2019/05/share-encrypted-amis-across-accounts-to-launch-instances-in-a-single-step/