Resource Orchestration Service:Create a Terraform template

Scenario

If you want to create and manage resources of a third-party cloud platform such as AWS or Microsoft Azure on Alibaba Cloud, you can define the third-party resources and configure dependency relationships for the resources in a Terraform template. This helps you manage resources across cloud platforms in a convenient manner.

Procedure

1. Log on to the ROS console.

2. In the left-side navigation pane, choose Templates > My Templates.

3. On the My Templates page, click Create Template.

4. From the ROS drop-down list, select Terraform.

5. Create a Terraform template.

   The following section provides an example on how to create a Terraform template. In this example, a vSwitch is created in a virtual private cloud (VPC).

   1. Create a file named main.tf in the modules/vpc/ directory and enter the file content to create a VPC.

      1. In the upper-right corner of the Directory section, click the + icon and select Create Folder.

         

      2. In the Create Folder dialog box, enter modules and click OK. A folder named modules is created in the Directory section.

      3. Move the pointer over the modules folder, click the + icon on the right side, and then select Create Folder.

      4. In the Create Folder dialog box, enter vpc and click OK. A folder named vpc is created in the modules folder.

      5. Move the pointer over the vpc folder, click the + icon on the right side, and then select Create File.

      6. In the Create File dialog box, enter main.tf and click OK. A file named main.tf is created in the vpc folder.

      7. Click the main.tf file and enter the following code in the right-side code editor to create a VPC:

         resource "alicloud_vpc" "vpc" {
           name       = "tf_test"
           cidr_block = "172.16.0.0/12"
         }
         output "vpc_id" {
           value = "${alicloud_vpc.vpc.id}"
         }

         

   2. Edit the main.tf file in the root directory to create a vSwitch in the VPC.

      1. Click the main.tf file in the root directory.

      2. In the right-side code editor, enter the following code to create a vSwitch:

         module "my_vpc" {
           source      = "./modules/vpc"
         }
         resource "alicloud_vswitch" "vsw" {
           vpc_id            = "${module.my_vpc.vpc_id}"
           cidr_block        = "172.16.0.0/21"
           availability_zone = "cn-shanghai-b"
         }
         output "vsw_id" {
           value = "${alicloud_vswitch.vsw.id}"
         }

         

6. In the upper-right corner of the Create Template page, choose Save Template > Save as My Template.

7. In the Save as My Template dialog box, configure the Template Name, Template Description, Resource Group, and Tag parameters.

8. Click OK.

References

• Features and resources supported by Terraform in ROS

• Methods and suggestions for Terraform code development

• Examples of Terraform templates

• Use Outputs to display Chinese descriptions and sort parameters