Workers: Scaling
There are two easy ways to add worker nodes to a cluster:
- Add entries to
worker_pools. - Increase the
sizeof aworker_poolsentry.
Worker pools can be added and removed, their size and boot volume size can be updated. After each change, run terraform apply.
Scaling changes to the number and size of pools are immediate after changing the parameters and running terraform apply. The changes to boot volume size will only be effective in newly created nodes after the change is completed.
Autoscaling
See Extensions/Cluster Autoscaler.