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 root 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 root 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:
While usingFn::ImportValueto retrieve VPC and subnet values and utilizing CloudFormation StackSets is a valid approach, it does not leverage the nesting capability of CloudFormation effectively for modular infrastructure management. StackSets are more suited for managing stacks across multiple accounts and regions, which might not be necessary in this scenario focused on development environments. Additionally, there is no mention of using nested stacks to encapsulate shared resources.
Although this option uses nested stacks andFn::ImportValue, referencing the networking team’s template usingTemplateURLis not the most effective method.TemplateURLis typically used to point to external templates, which complicates the architecture. It also does not address the requirement for easily updating the deployed infrastructure as effectively as other options, particularly when managing the relationships between nested stacks.
This approach correctly utilizes nested stacks to define common infrastructure components, enhancing reusability and organization. UsingFn::ImportValuein the nested stacks allows direct access to VPC and subnet values, which promotes a cleaner design. The option also includes the use ofCreateChangeSetandExecuteChangeSet, facilitating controlled updates to existing environments, aligning perfectly with the requirement for scalability and manageability.
This option suggests usingFn::ImportValuein the Parameters section of the root template, which is not ideal since parameters are typically meant for user-defined inputs rather than importing values from other stacks. Furthermore, defining resources in a strict order in nested stacks can lead to rigid architecture, making it harder to manage and update environments as needed. This approach does not fully capitalize on the benefits of nested stacks and change sets.