To expand an edge cluster, you can add edge nodes to the cluster in the console. In earlier versions, if you want to expand a cluster, you must purchase edge nodes, and then add existing nodes to the cluster. You can now purchase and add edge nodes on the cluster expansion page. This topic describes how to expand an edge cluster by adding edge nodes of Alibaba Cloud Edge Node Service (ENS) or by adding Elastic Compute Service (ECS) nodes.



  1. Log on to the ACK console.
  2. In the left-side navigation pane, click Clusters.
  3. On the Clusters page, find the target managed edge ACK cluster, click Expand on the right side of the page.
    Expand an edge cluster
  4. On the Expand page, take the following steps to expand the edge cluster.
    To expand the edge cluster, you can add ENS nodes or add ECS nodes in the ACK console.
    • Add ENS nodes

      To expand an edge cluster, you can add edge nodes to the cluster in the console. Click the Add ENS Node tab, and then configure the edge nodes to be added.

      Parameter Description
      Cluster Name The name of the managed edge ACK cluster.
      Region Select the region where the edge nodes are deployed.
      Instance Type Select the instance types of the edge nodes. You can select multiple instance types.
      Existing Worker Nodes The number of existing worker nodes in the cluster.
      Nodes to Add Select the number of worker nodes to be added.
      System Disk Select the system disk for the nodes. The minimum size is 20 GiB. The default disk type is basic disk.
      Image The default operating system for the image is centos_7_04_64_20G_alibase_20171211.
      Internet Bandwidth Billing Method

      ENS is billed based on the fourth peak bandwidth of each month by default. If your monthly bandwidth usage is higher than 10 Gbit/s, we recommend that you contact the business manager to request the monthly 95th percentile billing method.

      Password Enter the password for the nodes.
      Confirm Password Enter the password again.
      Billing Method Only the subscription billing method is supported.
      Duration Select the subscription duration. You can select 1, 2, 3, 6, or 12 months.
      Auto Renewal Specify whether to automatically renew the subscription of the nodes. Select the Enable check box to enable auto renewal.
    • Add ECS nodes

      To expand an edge cluster, you can also add ECS nodes to the cluster in the ACK console. Click the Add ECS Node tab, and configure the ECS nodes to be added. For more information about how to add ECS nodes, see Parameters for cluster expansion.

  5. On the Expand page, click Submit on the right side of the page.
  6. On the Confirm page, select the terms of service check box after you have read it, and then click OK.


Go to the Clusters page, you can find that the Cluster Status column displays Scaling. This means that the expansion is in progress. When the Cluster Status displays Running, the expansion is complete.scale