Resources section in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the Resources section in an AWS CloudFormation template?

The Resources section defines all the AWS resources that you want to create and manage with the template, such as EC2 instances, S3 buckets, or IAM roles.

beginner

How do you specify a resource type in the Resources section?

You specify a resource type using the 'Type' property, for example, 'AWS::S3::Bucket' to create an S3 bucket.

beginner

What is the role of the 'Properties' field inside a resource in the Resources section?

The 'Properties' field defines the settings and configuration details for the resource, like the bucket name for an S3 bucket or the instance type for an EC2 instance.

intermediate

Can the Resources section reference other resources within the same template?

Yes, resources can reference each other using intrinsic functions like !Ref or !GetAtt to connect or configure resources together.

beginner

Why is it important to define resources properly in the Resources section?

Proper definition ensures AWS creates and manages the resources correctly, avoids errors, and helps maintain infrastructure as code for easy updates and replication.

What does the 'Resources' section in a CloudFormation template contain?

A User access policies

B Output values only

C Definitions of AWS resources to create

D Template metadata

The Resources section lists all AWS resources that the template will create and manage.

Which property specifies the type of AWS resource in the Resources section?

A Type

B Name

C Properties

D ResourceId

The 'Type' property defines the AWS resource type, like AWS::EC2::Instance.

How do you configure settings for a resource in the Resources section?

A Using the Settings field

B Using the Properties field

C Using the Config field

D Using the Parameters section

The 'Properties' field contains configuration details for the resource.

Which intrinsic function is commonly used to reference another resource in the same template?

A !Ref

B !Join

C !Sub

D !FindInMap

!Ref returns the value of a resource or parameter, allowing references between resources.

What happens if a resource is not properly defined in the Resources section?

A AWS ignores the resource

B The resource is created but not managed

C The resource is created with default settings

D The stack creation fails with errors

Improper resource definitions cause stack creation or update failures.

Explain the structure and purpose of the Resources section in an AWS CloudFormation template.

Think about how you tell AWS what to build and how to set it up.

Describe how resources in the Resources section can interact or connect with each other.

Consider how one resource might need information from another.