As demand changes you can add or remove worker nodes without rebuilding the cluster.
Steps
- Open your cluster under Kubernetes.
- Choose the Resize or Update action.
- Set the new node count and confirm.
The cluster adds nodes (more capacity for your pods) or removes them (lower cost). When removing, Kubernetes drains the nodes first and reschedules their pods onto the remaining nodes, so running workloads move rather than disappear.
What changes
- Scaling nodes changes how many servers you run, so it changes what you pay.
- It does not change the size of each node. To make individual nodes bigger, create a new cluster (or node group) on a larger Server Plan.
- Making a single application handle more load is done inside Kubernetes with your deployment's replica count, not here.
Keep at least two worker nodes for anything you care about staying available while one is updated or replaced.