Move a resource between stacks - Resource Orchestration Service

This topic describes how to move a resource from one stack to another. An Elastic IP Address (EIP) resource is used in the example.

Background information

In this example, an EIP resource named EIP2 is moved from Stack A to Stack B.

Procedure

Remove EIP2 from Stack A.

For more information, see Remove a resource from a stack.

Before you remove EIP2, it is contained in the template of Stack A. The following code shows a sample template before EIP2 is removed from Stack A:

ROSTemplateFormatVersion: '2015-09-01'
Resources:
  Eip:
    Type: ALIYUN::VPC::EIP
    Properties:
      Bandwidth: 5
  Eip2:
    Type: ALIYUN::VPC::EIP
    DeletionPolicy: Retain
    Properties:
      Bandwidth: 5
Outputs:
  EipAddress:
    Value:
      Fn::GetAtt:
        - Eip
        - EipAddress
  AllocationId:
    Value:
      Fn::GetAtt:
        - Eip
        - AllocationId
  EipAddress2:
    Value:
      Fn::GetAtt:
        - Eip2
        - EipAddress
  AllocationId2:
    Value:
      Fn::GetAtt:
        - Eip2
        - AllocationId

Note The DeletionPolicy parameter is set to Retain, which indicates that the resource is retained when it is removed from a stack. To prevent resources from being unexpectedly deleted, we recommend that you set the DeletionPolicy parameter to Retain.

After you remove EIP2, it is no longer contained in the template of Stack A. The following code shows a sample template after EIP2 is removed from Stack A:

ROSTemplateFormatVersion: '2015-09-01'
Resources:
  Eip:
    Type: ALIYUN::VPC::EIP
    Properties:
      Bandwidth: 5
Outputs:
  EipAddress:
    Value:
      Fn::GetAtt:
        - Eip
        - EipAddress
  AllocationId:
    Value:
      Fn::GetAtt:
        - Eip
        - AllocationId

Import EIP2 to Stack B.
For more information, see Import an existing resource to a stack.
Before you import EIP2, it is not contained in the template of Stack B. The following code shows a sample template before EIP2 is imported to Stack B:
```
ROSTemplateFormatVersion: '2015-09-01'
```
After you import EIP2, it is contained in the template of Stack B. The following code shows a sample template after EIP2 is imported to Stack B:
```
ROSTemplateFormatVersion: '2015-09-01'
Resources:
  Eip2:
    Type: ALIYUN::VPC::EIP
    DeletionPolicy: Retain
    Properties:
      Bandwidth: 5
Outputs:
  EipAddress2:
    Value:
      Fn::GetAtt:
        - Eip2
        - EipAddress
  AllocationId2:
    Value:
      Fn::GetAtt:
        - Eip2
        - AllocationId
```

Result

After the preceding operations, EIP2 is moved from Stack A to Stack B. You can view information about the imported EIP2 resource on the Resources tab of the stack management page of Stack B.