Scale a service

A service’s capacity is controlled in two places: Autoscaling, which scales the number of replicas, and Resources, which sets the CPU and memory each replica gets.

Configure autoscaling

1. Open a service and go to Settings → Autoscaling.
2. Turn on Enable Autoscaling.
3. Set Minimum Replicas and Maximum Replicas (1–10 each).
4. Set the CPU Threshold (10%–90%) — the average CPU usage across replicas that triggers scaling up.
5. Click Save.

With autoscaling enabled, the service scales up toward the maximum when average CPU usage exceeds the threshold, and back down toward the minimum when usage drops.

Configure resource allocation

1. Open a service and go to Settings → Resources.
2. Under Application size, pick a preset — Nano, Micro, Small, Medium, Large, or WordPress — or choose Custom to set your own limits.
3. If you chose Custom, set Memory (250–8000 MB) and CPU (0.25–4 vCPU) with the sliders.
4. Click Save.

Preset	CPU	Memory
Nano	0.25 vCPU	256 MB
Micro	0.5 vCPU	512 MB
Small	1 vCPU	1000 MB
Medium	2 vCPU	2000 MB
Large	4 vCPU	4000 MB
WordPress	1 vCPU	1500 MB

Note

Resource changes apply to every replica. If autoscaling is enabled, each replica — from the minimum up to the maximum — runs with the resources configured here.