ALIYUN::POLARDB::DBNodes is used to add nodes to an ApsaraDB for POLARDB cluster.

Syntax

{
  "Type": "ALIYUN::POLARDB::DBNodes",
  "Properties": {
    "DBClusterId": String,
    "Amount": Integer
  }
}

Properties

Property Type Required Editable Description Constraint
DBClusterId String Yes No The ID of the cluster. None.
Amount Integer Yes Yes The number of nodes to be added to the cluster. None.

Response parameters

Fn::GetAtt

  • DBNodeIds: the IDs of the nodes added to the cluster.
  • OrderIds: the order IDs of added cluster nodes.

Examples

JSON format 

{
  "ROSTemplateFormatVersion": "2015-09-01",
  "Resources": {
    "DBNodes": {
      "Type": "ALIYUN::POLARDB::DBNodes",
      "Properties": {
        "DBClusterId": {
          "Ref": "DBClusterId"
        },
        "Amount": {
          "Ref": "Amount"
        }
      }
    }
  },
  "Parameters": {
    "DBClusterId": {
      "Type": "String",
      "Description": "The ID of the ApsaraDB for POLARDB cluster to be added nodes to."
    },
    "Amount": {
      "Type": "Number",
      "Description": "Number of nodes to be added to cluster.",
      "MaxValue": 16,
      "MinValue": 1
    }
  },
  "Outputs": {
    "DBNodeIds ":{
      "Description": "The ID list of added cluster nodes.",
      "Value": {
        "Fn::GetAtt": [
          "DBNodes",
          "DBNodeIds"
        ]
      }
    },
    "OrderIds": {
      "Description": "The order ID list of added cluster nodes.",
      "Value": {
        "Fn::GetAtt": [
          "DBNodes",
          "OrderIds"
        ]
      }
    }
  }
}

YAML format 

ROSTemplateFormatVersion: '2015-09-01'
Resources:
  DBNodes:
    Type: ALIYUN::POLARDB::DBNodes
    Properties:
      DBClusterId:
        Ref: DBClusterId
      Amount:
        Ref: Amount
Parameters:
  DBClusterId:
    Type: String
    Description: The ID of the ApsaraDB for POLARDB cluster to be added nodes to.
  Amount:
    Type: Number
    Description: Number of nodes to be added to cluster.
    MaxValue: 16
    MinValue: 1
Outputs:
  DBNodeIds:
    Description: The ID list of added cluster nodes.
    Value:
      Fn::GetAtt:
      - DBNodes
      - DBNodeIds
  OrderIds:
    Description: The order ID list of added cluster nodes.
    Value:
      Fn::GetAtt:
      - DBNodes
      - OrderIds