AWS Certified Cloud Practitioner / EC2 Instance Storage

EC2 Image Builder Overview

πŸ”Ή What Is EC2 Image Builder?

A service that automates building, testing, and distributing AMIs.

πŸ‘‰ In simple terms: it builds and manages AMIs for you β€” no manual work needed.

βš™οΈ What It Does (Exam Focus)

  • πŸ› οΈ Creates AMIs automatically

  • πŸ”„ Keeps them updated

  • βœ… Tests and validates them

  • 🌍 Distributes them across regions


πŸ”„ How It Works β€” Step by Step

1. Launches a Builder Instance A temporary EC2 instance used just for setup.

2. Customizes It Installs whatever you've defined β€” software, CLI tools, patches, firewalls, etc.

3. Creates the AMI Packages everything installed into a new Amazon Machine Image.

4. Tests It πŸ§ͺ (optional but recommended) Launches a separate test instance to check:

  • Is the system working?

  • Is the app running?

  • Is it secure?

5. Distributes It 🌍 Copies the finished AMI to other regions/environments for global deployment.


πŸ” Automation & Scheduling

Can run:

  • On a schedule (e.g., weekly)

  • When packages update

  • Manually, on demand


πŸ’° Pricing

  • βœ… The service itself is free

  • ❗ You pay for the resources it uses:

    • EC2 instances (builder + test)

    • AMI storage (EBS snapshots)

    • Cross-region distribution