use ALIYUN::SLB::MasterSlaveServerGroup to create a primary/secondary server group - Resource Orchestration Service

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

Important

A primary/secondary server group contains only two Elastic Compute Service (ECS) instances. One instance serves as the primary server. The other ECS instance serves as the secondary server.

Syntax

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

Properties

Property	Type	Required	Editable	Description	Constraint
MasterSlaveServerGroupName	String	No	No	The name of the primary/secondary server group.	None.
MasterSlaveBackendServers	List	Yes	No	The backend servers in the primary/secondary server group.	A primary/secondary server group can contain up to two backend servers. If you do not specify this property, an empty primary/secondary server group is created.
LoadBalancerId	String	Yes	No	The ID of the Server Load Balancer (SLB) instance.	None.

MasterSlaveBackendServers syntax

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

MasterSlaveBackendServers properties

Property	Type	Required	Editable	Description	Constraint
ServerId	String	Yes	No	The ID of the ECS instance or elastic network interface (ENI) that you want to add to the primary/secondary server group.	None.
ServerType	String	No	No	The server type.	Valid values: Master (default): primary Slave: secondary
Port	Integer	Yes	No	The port number that is 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.
Type	String	No	No	The type of the instance that you want to use as the backend server.	Valid values: ecs: ECS instance eni: ENI
ServerIp	String	No	No	The IP address of the ECS instance or ENI.	None.

Return values

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****",
            "Port": "80",
            "Weight": "100",
            "ServerType": "Master"
          },
          {
            "ServerId": "vm****",
            "Port": "90",
            "Weight": "100",
            "ServerType": "Slave"
          }
        ],
        "LoadBalancerId": "lb-bp1hv944r69al4j9j****"
      }
    }
  },
  "Outputs": {
    "MasterSlaveServerGroupId": {
      "Value": {
        "Fn::GetAtt": [
          "MasterSlaveServerGroup",
          "MasterSlaveServerGroupId"
        ]
      }
    }
  }
}