I'd love to hear how you're handling the ECS part of this. From the experimentation I've done, it's not just a matter of telling ECS to update the service unless you're running 2x the number of container instances you need -- it won't pull resources out from the existing service revision in order to spin up the new ones.
Certainly can be worked around, but it's a little annoying.
Certainly can be worked around, but it's a little annoying.