You can use a node pool to manage multiple nodes in a Container Service for Kubernetes (ACK) cluster as a group. For example, you can centrally manage the labels and taints of the nodes in a node pool. This topic describes how to create Windows nodes by using the node pool feature of ACK.


  • A Windows node pool supports only Flannel as the network plug-in and does not support Terway.

  • By default, you can deploy up to 100 nodes in an ACK cluster. To increase the quota, Submit a ticket.
  • Before you add an existing Elastic Compute Service (ECS) instance that is deployed in a virtual private cloud (VPC), make sure that an elastic IP address (EIP) is associated with the ECS instance, or a NAT gateway is created for the VPC. In addition, you must make sure that the node can access the Internet. Otherwise, you may fail to add the ECS instance.

  • A Windows node pool supports the following operating systems: Windows Server 2019 and Windows Server Core, 1909.


  1. Log on to the ACK console.
  2. In the left-side navigation pane, click Clusters.
  3. On the Clusters page, find the cluster that you want to manage and click the name of the cluster or click Details in the Actions column. The details page of the cluster appears.
  4. In the left-side navigation pane of the details page, click Node Pools.
  5. In the upper-right corner of the Node Pools page, click Create Node Pool.
    In the upper-right corner of the Node Pools page, you can also click Create Managed Node Pool to create a managed node pool, or click Configure Auto Scaling to create an auto-scaling node pool.
  6. In the Create Node Pool dialog box, configure the node pool.
    For more information about the parameters, see Create a managed Kubernetes cluster. The following list describes some of the parameters:
    • Quantity: Specify the initial number of nodes in the node pool. If you do not want to add nodes to the pool, set this parameter to 0.
    • Operating System: Select a Windows operating system.
    • Node Label: Add labels to the nodes in the node pool.
    • ECS Label: Add labels to the Elastic Compute Service (ECS) instances.
  7. Click Confirm Order.
    On the Node Pools page, if the state of the node pool is Initializing, it indicates that the node pool is being created. After the node pool is created, the state of the node pool changes to Active. nodepool