Halodoc cut EC2 costs and shaved latency by leaning into two Kubernetes tricks:
In-place pod resizing (v1.33) lets them dial pod resources up or down on the fly, especially handy during off-peak hours.
Zone-aware routing via topology-aware hints keeps inter-service traffic close to home (same AZ), skipping extra hops.
A custom scheduler keeps those resource tweaks sticky, even when pods restart.
