This topic describes how to use the Container Service console to scale out a Kubernetes cluster. Specifically, this task adds new Worker nodes to the cluster.

Limits

No Master node can be added to any existing Kubernetes cluster.

Procedure

  1. Log on to the Container Service console.
  2. In the left-side navigation pane under Container Service-Kubernetes, choose Clusters > Clusters.
  3. Find the target cluster. Then, in the Action column, click Expand.

  4. Set the number of Worker nodes that you want to add to the cluster.


  5. Set the parameters of the Worker nodes.
    • Instance Type: Indicates the ECS instance type. You can select multiple ECS instance types. For more information, see Instance type families.
    • System Disk: Indicates the type and capacity of the system disk. Available system disks are SSD disks and Ultra disks.
    • Attach Data Disk: Indicates the type and capacity of the data disk. Available data disks are SSD disks, Ultra disks, and basic disks.


  6. Set the logon type for the Worker nodes.
    • Set the key pair.
      1. Click Create a new key pair.
        Note You must use the ECS console to create a key pair. For more information, see Create an SSH key pair.
      2. Select the key pair that you created from the Key Pair Name drop-down list.


    • Set the password.
      • Logon Password: Set the node logon password.
      • Confirm Password: Confirm your node logon password.
  7. Add an RDS instance to the RDS whitelist.

  8. Attach tags to the cluster.

    Enter a key and its value, and click Add.



  9. Click Submit.

What to do next

Follow these steps after you complete the procedure to verify results:
  1. In the left-side navigation pane under Container Service-Kubernetes, choose Clusters > Nodes.
  2. Select the target Kubernetes cluster from the Clusters drop-down list to verify that the number of Worker nodes is changed.