What should the company do to meet this new requirement with the LEAST effort?
Create a new AWS Cloud Development Kit (AWS CDK) stack that strictly provisions the existing VPC resources and configuration. Use AWS CDK to import the VPC into the stack and to manage the VPC.
Create a CloudFormation stack set that creates the VPC. Use the stack set to import the VPC into the stack.
Create a new CloudFormation template that strictly provisions the existing VPC resources and configuration. From the CloudFormation console, create a new stack by importing the existing resources.
Create a new CloudFormation template that creates the VPC. Use the AWS Serverless Application Model (AWS SAM) CLI to import the VPC.
Explanations:
AWS CDK is a software development framework for defining cloud infrastructure using programming languages. However, it is not the best fit for managing existing resources in a VPC, especially if the VPC is already manually created. It would require more effort to import and manage the VPC configuration, and it does not strictly meet the requirement of using CloudFormation for infrastructure management.
CloudFormation StackSets are designed to deploy CloudFormation stacks across multiple accounts and regions. This option does not address the requirement of importing an existing manually created VPC into CloudFormation for management. StackSets would not automatically import resources.
This option involves creating a CloudFormation template that defines the existing VPC resources. CloudFormation allows importing existing resources into a stack, so the VPC can be managed with minimal effort. This solution directly addresses the requirement to manage infrastructure with CloudFormation.
AWS SAM is specifically designed for serverless applications, not for managing existing VPCs. It cannot be used to import VPC resources, and using it would require additional effort outside the scope of the requirement to manage infrastructure with CloudFormation.
From what I’ve heard, the answer is:
Create a new CloudFormation template that strictly provisions the existing VPC resources and configuration. From the CloudFormation console, create a new stack by importing the existing resources.