The document provides an overview of the AWS CloudFormation Designer Interface. It describes how to use the Designer to create a VPC with public and private subnets for an EKS cluster. The Designer has four panes - a canvas pane to view resources and relationships, a resources types pane to drag resources onto the canvas, an editor pane to specify template details, and a messages pane to view validation results. Templates can be saved locally or to S3.

5. AWS CLOUDFORMATION DESIGNER INTERFACE OVERVIEW
TO CREATE YOUR CLUSTER VPC WITH PUBLIC AND PRIVATE SUBNETS
1. Open the AWS CloudFormation console at https://console.aws.amazon.com/cloudformation.
2. From the navigation bar, select a Region that supports Amazon EKS.
3. Choose Create stack.
4. For Choose a template, select Specify an Amazon S3 template URL.
5. Paste the following URL into the text area and choose Next:

6. https://amazon-eks.s3.us-west-2.amazonaws.com/cloudformation/2020-03-23/amazon-eks-vpc-private-
subnets.yaml
On the Specify Details page, fill out the parameters accordingly, and then choose Next.
Designer has four panes. The canvas pane shows a diagram of your template resources so that you can see them and their
relationships at a glance. To add resources to your template, you drag them from the Resources types pane onto the canvas pane.
Use the Integrated JSON and YAML editor pane to specify template details, such as resource properties or template parameters.
After you've modified the template, you can save it to a local file or to an Amazon S3 bucket. When you convert a valid template
from JSON to YAML or vice-versa, the Messages pane displays a success or failure message. When you open or validate an invalid
template, the Messages pane displays validation errors.
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