This topic describes how to increase the number of nodes in the cluster. For API descriptions, see Scale out or in a cluster.

API request and response

Request format

aliyun cs  PUT /clusters/<cluster_id> --header "Content-Type=application/json" --body "$(cat scale.json)"

Parameter descriptions:

  • --header: Specify Content-Type as application/json.
  • --body: This is the body content to be sent to the server. The content can be read from a local file and must be in JSON format. The content of scale.json is as follows:
Kubernetes cluster
{ "disable_rollback": "indicates whether to roll back the cluster if cluster expansion fails",
"timeout_mins": "timeout period for creating a cluster",

"worker_instance_type": "Worker instance type",
"login_password": "password used to log on to the node by using SSH", 
"num_of_nodes": "number of Worker nodes"
}

Response result

{
    "cluster_id": "c61cf530524474386a7ab5a1c192a0d57",
    "request_id": "348D4C9C-9105-4A1B-A86E-B58F0F875575",
    "task_id": "T-5ad724ab94a2b109e8000004"
}