Designing CloudFormation Templates for Regional Resource Provisioning
Question
You are in charge of creating a Cloudformation template that will be used to spin our resources on demand for your DevOps team.
The requirement is that this cloudformation template should be able to spin up resources in different regions.
Which of the following aspects of Cloudformation templates can help you design the template to spin up resources based on the region?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - A.
The AWS Documentation mentions.
The optional Mappings section matches a key to a corresponding set of named values.
For example, if you want to set values based on a region, you can create a mapping that uses the region name as a key and contains the values you want to specify for each specific region.
You use the Fn:: FindInMap intrinsic function to retrieve values in a map.
For more information on mappings, please refer to the below link:
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/mappings-section-structure.htmlTo design a CloudFormation template that can spin up resources in different regions, you need to use the appropriate CloudFormation features that allow you to specify region-specific information. Here are the options you have:
A. Use the mappings section in the CloudFormation template The mappings section in the CloudFormation template allows you to define a map of key-value pairs that can be used to retrieve values based on a specific key. You can use this feature to define mappings between the AWS region and the resources that need to be created in each region. For example, you can define a mapping between the "us-east-1" region and an EC2 instance configuration, and a mapping between the "us-west-2" region and an S3 bucket configuration. Then, in your CloudFormation template, you can use the region-specific mappings to create the appropriate resources for each region.
B. Use the outputs section in the CloudFormation template The outputs section in the CloudFormation template allows you to specify the output values that are generated when the stack is created. You can use this feature to output region-specific information, such as the DNS name or IP address of a resource that was created in a specific region. This information can then be used by other resources in the stack to interact with the region-specific resources.
C. Use the parameters section in the CloudFormation template The parameters section in the CloudFormation template allows you to define input values that are used when the stack is created. You can use this feature to specify region-specific parameters that can be used to configure resources differently in different regions. For example, you can define a parameter for the region-specific S3 bucket name, and use it to create a different S3 bucket in each region.
D. Use the metadata section in the CloudFormation template The metadata section in the CloudFormation template allows you to specify additional information about the stack or its resources. This information can be in the form of key-value pairs, and can be used to store region-specific information, such as the description of a resource that was created in a specific region. However, this section is not designed to allow you to specify region-specific resources directly.
In summary, to create a CloudFormation template that can spin up resources in different regions, you can use the mappings, outputs, and parameters sections in the CloudFormation template. The choice of which section to use depends on the specific requirements of the stack you are creating, and the type of region-specific information you need to specify.
