Add memory limits & HPA setup using feature flag
Adding memory limits:
AKS node autoscaler uses memory limits to add nodes to cluster when HPA(Horizontal Pod Autoscaler) needs more capacity. Values were experimentally determined. Given implementation allows managing the list of envs where limits are enabled.
HPA setup using feature flag:
A feature flag should be used to control the release of HPA in different environments. Given implementation allows managing the HPA setup.