from one box deployment to rolling deployment, the approach is what i would call Progressive Delivery. #reInvent2020
from boxes to regions to availability zones. but for speed deploy in "waves" through availability zones, so you can have a lot of changes being deployed at the same time. "we're never touching more than one availability zone with any one change".
"at amazon we let the monitoring watch the pipelines, so individual developers don't have to. set metrics thresholds, that will automatically roll back a change" virtual.awsevents.com/media/1_fl6gjk…