Node Pool

Overview

UK8S introduces the concept of node pools, which makes grouping and managing nodes easier. This document will introduce the creation and management functions of node pools to help you better utilize the node pool feature to manage and optimize your Kubernetes cluster.

Default Node Pool

When creating a cluster, the default node pool is automatically created. All Master nodes and Node nodes enter the default node pool. Any node pools created manually are considered non-default.

The default node pool is unique and cannot be modified or deleted. The following types of nodes all enter the default node pool:

• All host additions that do not select a node pool, including adding new nodes and existing hosts
• Non-standard cloud hosts, such as physical cloud hosts and bare metal cloud hosts

Create a Node Pool

To create a node pool, follow these steps:

1. Log in to the UCloud Global console and navigate to the UK8S service.

2. On the Kubernetes service page, select the cluster for which you want to create a node pool.

3. On the cluster details page, select the “Node Pool” tab.

4. Click the “Add Node Pool” button.

5. On the Create Node Pool page, fill in the name of the node pool, node host information, specifications and other information.

6. Click the “Create” button and wait for the node pool to be created.

Manage Node Pools

Once a node pool is created, you can perform the following operations to manage it:

• Add nodes to the node pool: You can manually expand the pool to meet business requirements based on the load of your application.

  • Adding nodes through a node pool can be completed in a few steps, without the need to repeatedly select common host specifications

• Delete node pool: If a node pool is no longer needed, you can choose to delete it; please make sure that all nodes under the node pool have been removed before deleting, if nodes still exist, it cannot be deleted.

  • If there are nodes in the target node pool, the remove operation is prohibited

  • If there are no nodes in the target node pool, the remove operation is available.