CloudFormation

Question 1

What are the 6 Cloudformation template components nd what do they do?

Answer 1

• Resources: The AWS resources you want
• Parameters: Dynamic inputs to your template
• Mappings: Static variables for your template
• Outputs: References to what has been created
• Conditionals: List of conditions to perform resource creation
• MetaData

Question 2

What are the 2 template helpers and what do they do?

Answer 2

• References: Link variables in your template

- Functions: Transform data in the template

Question 3

What form does the Resource type identifier come in?

Answer 3

AWS::aws-product-name::data-type-name
AWS::AutoScaling::ScalingPolicy

Question 4

What 2 properties must all Resources have?

Answer 4

• Type

- Parameters

Question 5

What 5 data types are permitted for Parameter Types?

Answer 5

• String
• Number
• CommaDelimtedList
• List
• AWS Parameter

Question 6

How can you reference parameters in the yaml template?

Answer 6

Use the Fn::Ref Function. In yaml it is “!Ref “

Question 7

What is a Psuedo Parameter?

Answer 7

It is a parameter provided by AWS for any Cloudformation template.

Question 8

What are the 6 Pseudo Parameters?

Answer 8

• AWS::AccountId
• AWS::NotificationARNs
• AWS::NoValue
• AWS::Region
• AWS::StackId
• AWS::StackName

Question 9

What are Cloudformation Mappings?

Answer 9

They are hardcoded fixed variables in the template

Question 10

How do you access Mapping Values?

Answer 10

Use the Fn::FindInMap Function. It takes 3 values:

“!FindInMap [MapName, TopLevelKeyName, SecondLevelKeyName]”

Question 11

What are CLoudformation Outputs?

Answer 11

Optional outputs we can export and then import into other stacks.

Question 12

How do you reference an output in a different stack?

Answer 12

Use the Fn::ImportValue function. !ImportValue

Question 13

What are the 5 logical functions available for conditionals?

Answer 13

• Fn::And
• Fn::Equals
• Fn::If
• Fn::Not
• Fn::Or