Introduction

• Infrastructure as Code service in AWS Platform
• Manual Creation and Custom Scripts are not flexible for manipulating the resources

Why Cloud Formation

• What if more than one service is to be used in AWS Platform ?
• Easy to automate the infrastructure orchestration process

How Cloud Formation works?

Terminologies

• Template
• Stack

Anatomy of Template in YAML

AWSTemplateFormatVersion:

Description: (optional)

Parameters: (Optional) (Input Custom Values to the template)

Mappings: (Optional)(By using one value to map the needy V)

Resources: (Important)

Outputs:(Optional)

Template Example

Resources:

MyInstance :

Type: AWS::EC2::Instance (Resource Type)

Properties :

AvailabilityZone : us-east-1a

ImageId: ami-a4c7edb2

InstanceType : t2.micro

Intrinsic Functions

Cloud Formation has many built-in operations for many operations.

EXAMPLE:

Fn::FindInMap

Fn::Ref

Fn::Join

( Fn:: can also be denoted as !)