Cloud Formation

• Consider creating the following architecture

• Options are

  • AWS Console
  • AWS CLI

• Lets assume i preferred console and created the architure using UI.

• Next day i got a request to recreate the same architecture, now what should be approach

• Mostly automation and i have two possibilites

  • Write a shell script/powershell script using AWS CLI
  • Write a cloud formation template

• Lets stick to shell scripts, problems here

  • Difficult to change
  • when the script runs it is not guranteed to get th same result

• Cloud formation template is

  • a json/yaml file
  • It is IAC with idempotentance.

• Cloudformation template is a json/yaml based declarative way of creating infrastructure

Lab Setup

• Git For Windows

choco install git -y

• AWS CLI

choco install awscli -y

• Visual Studio Code

choco install vscode -y

• Cloud formation Extension to visual studio code

Basic Cloudformation Structure

• Create a json file in a folder
• For basic structure of the template Refer Here