Question
A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance types.
How can the developer incorporate the list of approved instance types in the CloudFormation template?
- A. Create a separate CloudFormation template for each EC2 instance type in the list.
- B. In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list.
- C. In the CloudFormation template, create a separate parameter for each EC2 instance type in the list.
- D. In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues. Correct
Explanation
According to AWS documentation, to restrict input values for a parameter to a specific set of options, you can use the 'AllowedValues' property within the parameter definition in a CloudFormation template. This allows specifying a list of approved EC2 instance types from which users can choose.
