Which approach will meet these requirements and quickly provide consistent AWS environments for Developers?
Use Fn::ImportValue intrinsic functions in the Resources section of the template to retrieve Virtual Private Cloud (VPC) and subnet values. Use CloudFormation StackSets for the development environments, using the Count input parameter to indicate the number of environments needed. use the UpdateStackSet command to update existing development environments.
Use nested stacks to define common infrastructure components. To access the exported values, use TemplateURL to reference the Networking team’s template. To retrieve Virtual Private Cloud (VPC) and subnet values, use Fn::ImportValue intrinsic functions in the Parameters section of the master template. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.
Use nested stacks to define common infrastructure components. Use Fn::ImportValue intrinsic functions with the resources of the nested stack to retrieve Virtual Private Cloud (VPC) and subnet values. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.
Use Fn::ImportValue intrinsic functions in the Parameters section of the master template to retrieve Virtual Private Cloud (VPC) and subnet values. Define the development resources in the order they need to be created in the CloudFormation nested stacks. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.
Explanations:
StackSets are used for deploying CloudFormation templates across multiple accounts and regions, but it doesn’t address the management of updating environments or retrieving VPC/subnet values properly. The solution doesn’t include nested stacks or the correct method of updating environments with ChangeSets.
While nested stacks can help manage reusable infrastructure components, using TemplateURL in this context doesn’t solve the issue of managing VPC and subnet values or updating environments efficiently. The CreateChangeSet and ExecuteChangeSet commands are appropriate, but the approach for accessing VPC/subnet values is not fully correct.
Using nested stacks to define common components and Fn::ImportValue in nested stacks is the best approach for maintaining modular templates. It allows efficient retrieval of VPC/subnet values and provides a systematic way of updating development environments through ChangeSets. This method is scalable and automated.
While Fn::ImportValue can be used correctly to retrieve VPC and subnet values, this approach doesn’t utilize nested stacks efficiently for modularity. Defining the resources in a single order without nested stacks could lead to less flexibility and reusability, which makes it less ideal for scaling and automating the creation of development environments.
I sort that the answer is:
Use nested stacks to define common infrastructure components. Use Fn::ImportValue intrinsic functions with the resources of the nested stack to retrieve Virtual Private Cloud (VPC) and subnet values. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.