CloudFormation in AWS

knowledge domain: cloud infrastructure

• a service that helps you define and manage your infrastructure as code
• a tool to model & automate infrastructure on AWS
  • using declarative templates
    • wirtten in YAML or JSON
• instead of:
  • manually creating & configuring AWS resources
• you will:
  • write a template
    • that describes the resources & their configurations
• CloudFormation takes care of:
  • provisioning &
  • managing them

AWS resources / AWS core services

1. EC2 Instances
   • Elastic Compute Cloud
     • a virtual server in the cloud that you can use just like a physical computer
     • Think of EC2 as your cloud-based computer that runs your code or hosts your website.
   • instance:
     • a single virtual server that you run in the cloud
     • to describe a running copy of something
     • a running instance of a server
     • You choose a type (like t2.micro or m5.large), and AWS launches a new instance based on that
2. S3 Buckets
   • Simple Storage Service
     • a cloud storage service used to store & retrieve any amount of data
       (files, images, backups, etc)
     • Think of an S3 bucket as a folder in the cloud where you can store and retrieve files from anywhere.
   • Object storage (a feature):
     • Stores files (called objects) in containers called buckets
     • i.e.,
       • objects: files
       • buckets: container to store files
3. VPCs
   • Virtual Private Cloud
     • A virtual network where you launch and isolate your AWS resources (like EC2 or databases).
     • Think of a VPC as your own private data center in the AWS cloud, with full control over networking and security.