you can do `bin packing` with k8s as well. Allowing you to have a best of both worlds.
From k8s webpage (https://kubernetes.io/): "Automatically places containers based on their resource requirements and other constraints, while not sacrificing availability. Mix critical and best-effort workloads in order to drive up utilization and save even more resources."
Bin packing is the actual academic term for this class of problems so the intended snark in using quotes is a bit misplaced.
Furthermore, running k8s to pack containers into AWS instances that are are themselves actually full blown VMs running on a hypervisor is of course one way to do computing. It is perhaps worth considering that there are others, more direct ways that can be achieved more economically.
From k8s webpage (https://kubernetes.io/): "Automatically places containers based on their resource requirements and other constraints, while not sacrificing availability. Mix critical and best-effort workloads in order to drive up utilization and save even more resources."