top of page
Ara

AWS Amazon Machine Image (AWS AMI)

  • Yazarın fotoğrafı: bthngtmsbg
    bthngtmsbg
  • 20 Ara 2024
  • 2 dakikada okunur

AWS AMI (Amazon Machine Image)

When working on a project that requires virtual servers (EC2 instances), AWS AMI serves as a ready-made template for me. An AMI can be thought of as a package that includes everything a server needs: the operating system, software, configurations, and other essential components.


Analogy: an AWS AMI as a "mold." For example, imagine you're baking a cake and you have a cake mold. You decide what ingredients to put into the mold (operating system, software, configurations). Once you've prepared the mold, you can use it to make as many identical cakes (EC2 instances) as you want.


What is an AMI and Why Use It?

  • AMI contains everything necessary to launch a server on AWS: operating system, applications, disk configuration, and permissions.

  • It ensures repeatability. Once I prepare an AMI, I can reuse it to recreate the same system setup in the future.

  • It is highly useful for system backups. If something goes wrong, I can restart the system using the AMI to restore it to its original state.

Key Components of an AMI

  1. Operating System: This could be Linux (Amazon Linux, Ubuntu, etc.) or Windows Server.

  2. Software: Applications running on the server

  3. Storage Configuration: Information about disk types (SSD or HDD) and sizes.

  4. Permissions: Defines who can use or share the AMI.



What Can I Do with an AMI?

  • Launch New Servers: I can launch one or multiple EC2 instances from a single AMI.

  • Create My Own AMI: I can set up a customized system and save it as an AMI for future use.

  • Backup Purposes: I can store the system as a complete backup in AMI format to protect against failures.

Types of AMIs

  1. Public AMIs: Templates provided by AWS or shared by the community.

  2. Private AMIs: Custom templates created by me and accessible only within my account.

  3. Marketplace AMIs: AMIs available on the AWS Marketplace, often bundled with licensed software.

Things to Consider When Using AMIs

  • Region Restriction: AMIs are region-specific. If I want to use an AMI in a different region, I need to copy it to the new region.

  • Up-to-date Content: It’s important to ensure that the operating system and software in the AMI are up-to-date.






 
 
 

Comments

bottom of page