AWS is a feature factory and they are breaking their own back. Today I had an issue where creating an AMI for an application feature set as a golden image (with a very modest price tag at t1.supersmall or whatever) does not scale into high end compute instances due to lack of support for ena. Never was the case before.

Rolled it back into KVM/QEMU in colo with a glue layer REST interface over virsh and will never look back.

Of course we don't use containers..they don't offer an overt benefit in HPC...and I don't think they ever will.