ALIYUN::VPC::EIPAssociation is used to associate an elastic IP address (EIP) with a cloud service instance.

Syntax

{
  "Type": "ALIYUN::VPC::EIPAssociation",
  "Properties": {
    "AllocationId": String,
    "InstanceId": String,
    "PrivateIpAddress": String,
    "Mode": String
  }
}

Properties

Property Type Required Editable Description Constraint
AllocationId String Yes Yes The ID of the EIP. None
InstanceId String Yes Yes The ID of the cloud service instance. The following instance types are supported:
  • VPC-type ECS instances
  • VPC-type SLB instances
  • NAT gateways
  • High-Availability Virtual IP Address (HAVIP)
  • Elastic network interfaces (ENIs)
PrivateIpAddress String No Yes The private IP address in the CIDR block of the vSwitch. If you do not set this parameter, the system allocates a private IP address based on the VPC ID and vSwitch ID.
Mode String No Yes The association mode. Default value: NAT. Valid values:
  • NAT: the standard NAT mode
  • MULTI_BINDED: the Multi-EIP to ENI mode
  • BINDED: the cut-through mode

Response parameters

Fn::GetAtt

  • EipAddress: the allocated EIP.
  • AllocationId: the ID of the instance to which the EIP is allocated.

Examples

JSON format 

{
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "PrivateIpAddress": {
      "Type": "String",
      "Description": "An IP address in the CIDR block of the VSwitch.\nIf you leave the option empty, the system allocates a private IP address according to the VPC ID and VSwitch ID."
    },
    "InstanceId": {
      "Type": "String",
      "Description": "ECS/SLB/NAT/HaVip/ENI instance id to bid the EIP."
    },
    "AllocationId": {
      "Type": "String",
      "Description": "EIP instance id to bind."
    },
    "Mode": {
      "Type": "String",
      "Description": "The mode of association. Valid values:\nNAT(Default): NAT mode.\nBINDED: Cut-through mode.\nMULTI_BINDED: Multi-EIP to ENI mode.\nThis is required only when the value of InstanceType is NetworkInterface.",
      "AllowedValues": [
        "NAT",
        "MULTI_BINDED",
        "BINDED"
      ]
    }
  },
  "Resources": {
    "ElasticIpAssociation": {
      "Type": "ALIYUN::VPC::EIPAssociation",
      "Properties": {
        "PrivateIpAddress": {
          "Ref": "PrivateIpAddress"
        },
        "InstanceId": {
          "Ref": "InstanceId"
        },
        "AllocationId": {
          "Ref": "AllocationId"
        },
        "Mode": {
          "Ref": "Mode"
        }
      }
    }
  },
  "Outputs": {
    "AllocationId": {
      "Description": "ID that Aliyun assigns to represent the allocation of the address for use with VPC. Returned only for VPC elastic IP addresses.",
      "Value": {
        "Fn::GetAtt": [
          "ElasticIpAssociation",
          "AllocationId"
        ]
      }
    },
    "EipAddress": {
      "Description": "IP address of created EIP.",
      "Value": {
        "Fn::GetAtt": [
          "ElasticIpAssociation",
          "EipAddress"
        ]
      }
    }
  }
}

YAML format 

ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  PrivateIpAddress:
    Type: String
    Description: >-
      An IP address in the CIDR block of the VSwitch.

      If you leave the option empty, the system allocates a private IP address
      according to the VPC ID and VSwitch ID.
  InstanceId:
    Type: String
    Description: ECS/SLB/NAT/HaVip/ENI instance id to bid the EIP.
  AllocationId:
    Type: String
    Description: EIP instance id to bind.
  Mode:
    Type: String
    Description: |-
      The mode of association. Valid values:
      NAT(Default): NAT mode.
      BINDED: Cut-through mode.
      MULTI_BINDED: Multi-EIP to ENI mode.
      This is required only when the value of InstanceType is NetworkInterface.
    AllowedValues:
      - NAT
      - MULTI_BINDED
      - BINDED
Resources:
  ElasticIpAssociation:
    Type: 'ALIYUN::VPC::EIPAssociation'
    Properties:
      PrivateIpAddress:
        Ref: PrivateIpAddress
      InstanceId:
        Ref: InstanceId
      AllocationId:
        Ref: AllocationId
      Mode:
        Ref: Mode
Outputs:
  AllocationId:
    Description: >-
      ID that Aliyun assigns to represent the allocation of the address for use
      with VPC. Returned only for VPC elastic IP addresses.
    Value:
      'Fn::GetAtt':
        - ElasticIpAssociation
        - AllocationId
  EipAddress:
    Description: IP address of created EIP.
    Value:
      'Fn::GetAtt':
        - ElasticIpAssociation
        - EipAddress