You have been requested to use CloudFormation to maintain version control and achieve automation for the applications in your organization.
How can you best use CloudFormation to keep everything agile and maintain multiple environments while keeping costs down?
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - A.
As your infrastructure grows, common patterns can emerge in which you declare the same components in each of your templates.
You can separate out these common components and create dedicated templates for them.
That way, you can mix and match different templates but use nested stacks to create a single, unified stack.
Nested stacks are stacks that create other stacks.
To create nested stacks, use the AWS::CloudFormation::Stackresource in your template to reference other templates.
For more information on Cloudformation best practices, please refer to the below link:
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/best-practices.htmlCloudFormation is a service offered by AWS that helps in creating and managing AWS infrastructure resources using code. It allows users to provision and manage a collection of related AWS resources, provision them in an orderly and predictable fashion, and create templates to reuse and version control infrastructure resources.
To maintain version control and achieve automation for the applications in an organization, it is best to use CloudFormation. Using CloudFormation can help achieve agility and maintain multiple environments while keeping costs down.
Out of the given options, the best approach is to create separate templates based on functionality and create nested stacks with CloudFormation (Option A). This approach allows for the creation of a modular and reusable infrastructure, which can be easily maintained and updated. Using nested stacks can help manage dependencies between resources and minimize the risk of errors during stack creation or update.
Option B, using CloudFormation custom resources to handle dependencies between stacks, can be used to handle complex dependencies between stacks that cannot be managed with nested stacks. However, it can add complexity to the template and increase the time required to create or update stacks.
Option C, creating multiple templates in one CloudFormation stack, can be used to create multiple resources and environment configurations in a single stack. However, it can make the stack creation or update process more complex and error-prone, and it can be challenging to maintain version control and reuse resources across stacks.
Option D, combining all resources into one template for version control and automation, is not recommended as it can make the template too complex and difficult to manage. It can also increase the time required for stack creation or update, and make it challenging to maintain version control and reuse resources across stacks.
In summary, the best approach to maintaining version control and achieving automation with CloudFormation is to create separate templates based on functionality and use nested stacks to manage dependencies between resources. This approach allows for a modular and reusable infrastructure, which can be easily maintained and updated.