Resource Orchestration Service:Create a stack by using a change set

Scenario

If you want to manage a large number of cloud resources and preview the creation effect of the resources before a stack that contains the resources is created, you can create the stack by using a change set. You must use this feature together with the resource import feature. For more information, see Import an existing resource to create a stack. You can use the resource import feature to import cloud resources to create a stack. Then, you can use a change set to preview the creation effect of the resources before the stack takes effect. A stack can manage cloud resources as expected only after you successfully execute the change set on the stack. Before you execute a change set, you can check and modify the stack template to meet your business requirements.

Supported methods

• ROS console: You can use a change set to create a stack for resource management in the ROS console.

  For more information, see Import an existing resource to create a stack.

• ROS API operation: You can use a change set to create a stack by calling a specific ROS API operation.

  For more information, see CreateChangeSet.

• Alibaba Cloud CLI: You can use a change set to create a stack by using Alibaba Cloud CLI.

  For more information, see the "Create a stack by using Alibaba Cloud CLI" section of this topic.

Create a stack by using Alibaba Cloud CLI

1. Install Alibaba Cloud CLI.

   For more information, see Windows.

2. Configure an Alibaba Cloud credential.

   For more information, see Configure a credential in interactive mode (fast).

3. Create a stack by using a change set. You can use one of the following methods:

Create a stack by creating a change set

Run the aliyun ros CreateChangeSet command to create a stack by creating a change set.

You must set the ChangeSetType parameter to CREATE and configure the StackName, RegionId, TemplateBody, and ChangeSetName parameters. For more information, see CreateChangeSet.

aliyun ros CreateChangeSet --ChangeSetType CREATE --StackName <Name of the stack to be created by using the change set> --RegionId <Region ID of the change set> --TemplateBody <Structure that contains the template body> --ChangeSetName <Change set name> 

Create a stack by importing resources

Run the aliyun ros CreateChangeSet command to create a stack by importing resources.

You must set the ChangeSetType parameter to IMPORT and configure the StackName, RegionId, TemplateBody, ResourcesToImport, and ChangeSetName parameters. For more information, see CreateChangeSet.

Note

• In the value of the TemplateBody parameter, you must specify the deletion policy for resources.

• To import resources, you must specify the ResourcesToImport parameter.

aliyun ros CreateChangeSet --ChangeSetType IMPORT --StackName <Name of the stack to be created by using the change set> --RegionId <Region ID of the change set> --TemplateBody <Structure that contains the template body> --ChangeSetName <Change set name> --ResourcesToImport <Resources to be imported>

4. Run the aliyun ros ExecuteChangeSet command to execute the change set.

   aliyun ros ExecuteChangeSet --ChangeSetId <Change set +ID>

What to do next

• You can view the impacts of a change set on a stack and check the stack template. For more information, see View a change set and Data structures.

• After you execute a change set on a stack, ROS automatically deletes other change sets that are associated with the stack. For more information, see Execute a change set.

• If a change set cannot meet your business requirements on a stack update, you can delete the change set. For more information, see Delete a change set.