Releasing nodes from the compute cluster

If you need to release compute nodes, you can start with regular (non-management) nodes. When all of the regular compute nodes are released, you can proceed to remove the management nodes. The management nodes can only be released together. Their release destroys the compute cluster.

Limitations

The compute cluster must have at least three nodes, to allow self-service users to enable high availability for Kubernetes master nodes.

Prerequisites

A clear understanding of the limitations listed in High availability and the compute cluster.
If the node hosts virtual machines, they should be migrated to other nodes, as described in Migrating virtual machines.
To destroy the compute cluster, all virtual machines must be deleted.

To release nodes from the compute cluster

On the Compute > Nodes screen, do one of the following:
- Select the nodes, and then click Release nodes above the list.
- Click the ellipsis icon next to a node and select Release.
- Click a node to open its details, and then click Release node on the node right pane.
In the Release node window, confirm the action by clicking Release.

The selected nodes will disappear from the Nodes screen. If you selected all of the compute nodes, the compute cluster will be destroyed.