ALIYUN::SLB::MasterSlaveServerGroup is used to create a primary/secondary server group.

Notice A primary/secondary server group contains only two ECS instances: a primary server and a secondary server.

Syntax

{
  "Type": "ALIYUN::SLB::MasterSlaveServerGroup",
  "Properties": {
    "MasterSlaveServerGroupName": String,
    "MasterSlaveBackendServers": List,
    "LoadBalancerId": String
  }
}

Properties

Name Type Required Editable Description Validity
MasterSlaveServerGroupName String No No The name of the primary/secondary server group. None
MasterSlaveBackendServers List Yes No The list of backend servers in the primary/secondary server group. A primary/secondary server group can contain a maximum of two backend servers. If you do not specify this parameter, an empty primary/secondary server group is created.
LoadBalancerId String Yes No The ID of the SLB instance. None

MasterSlaveBackendServers syntax

"MasterSlaveBackendServers": [
  {
    "ServerId": String,
    "Port": Integer,
    "Weight": Integer,
    "ServerType": String
  }
]

MasterSlaveBackendServers properties

Name Type Required Editable Description Validity
ServerId String Yes No The ID of the ECS instance or Elastic Network Interface (ENI) to be added. None
ServerType String No No The type of the backend server.

Valid values: Master and Slave.

Default value: Master.
Port Integer Yes No The port used by the backend server. Valid values: 1 to 65535.
Weight Integer Yes No The weight of the backend server. Valid values: 0 to 100.

Response parameters

Fn::GetAtt

  • MasterSlaveServerGroupId: the ID of the primary/secondary server group.

Examples

{
  "ROSTemplateFormatVersion": "2015-09-01",
  "Resources": {
    "MasterSlaveServerGroup": {
      "Type": "ALIYUN::SLB::MasterSlaveServerGroup",
      "Properties": {
        "MasterSlaveServerGroupName": "Group1",
        "MasterSlaveBackendServers": [
          {
            "ServerId": "vm-233",
            "Port": "80",
            "Weight": "100",
            "ServerType": "Master"
          },
          {
            "ServerId": "vm-232",
            "Port": "90",
            "Weight": "100",
            "ServerType": "Slave"
          }
        ],
        "LoadBalancerId": "lb-bp1hv944r69al4j9jkmvx"
      }
    }
  },
  "Outputs": {
    "MasterSlaveServerGroupId": {
      "Value": {
        "Fn::GetAtt": [
          "MasterSlaveServerGroup",
          "MasterSlaveServerGroupId"
        ]
      }
    }
  }
}