Selecting the Best Linux Base AMI for AWS EC2

When setting up a new instance on AWS EC2, selecting the right Linux AMI (Amazon Machine Image) is an important step towards achieving optimal performance and stability. In this article, we'll explore the top choices and provide guidance on choosing the best Linux base AMI for your AWS environment.

Introduction to Linux Base AMIs

A base AMI is the foundation upon which you will build your AWS EC2 instances. These AMIs come pre-installed with the necessary software and libraries that are compatible with a particular version of the Linux operating system. The choice of AMI can significantly affect the performance, security, and ease of maintenance of your applications.

Popular AMIs for AWS EC2

Amazon Linux 2 AMI

Amazon Linux 2 is one of the most popular base AMI options for AWS EC2. It is optimized for use on AWS, and the long-term support makes it a reliable choice for various applications. This AMI provides a minimal and performant environment, with regular security updates and patches to keep your system up-to-date.

Ubuntu Server

Ubuntu Server is another widely-used option, especially for its ease of use and community support. The latest LTS (Long Term Support) release is recommended for stability and security, such as Ubuntu 20.04 LTS or 22.04 LTS. The community around Ubuntu is extensive, making it easier to find tutorials and resources for installation and development.

Debian

Debian is known for its stability and reliability. Users can choose the latest stable version available in the AWS Marketplace. Debian is a great choice for those who prioritize stability and do not require the latest features.

CentOS

CentOS is a popular choice for its compatibility with Red Hat Enterprise Linux (RHEL). However, it's important to note that CentOS 8 has transitioned to CentOS Stream, which is more rolling-release oriented. CentOS 7 is still widely used and is a good option for those who require a more stable and supported environment.

Fedora

Fedora is ideal for those who prefer a more cutting-edge experience. It provides the latest software and features, but with a shorter support cycle, making it less suitable for production environments that require long-term stability.

How to Find the Right AMI

To find the appropriate AMI, you can search through the AWS Management Console using the EC2 launch instance wizard or the AWS Marketplace. Each AMI has a unique identifier that can be used to launch an instance directly. Below are some specific AMI IDs for your reference:

Amazon Linux 2 AMI: US East (N. Virginia) ami-0c948550eEXAMPLE Ubuntu Server 20.04 LTS (HVM), SSD Volume Type: US East (N. Virginia) ami-0b4982ebEXAMPLE Debian 11 (Bullseye) (HVM), SSD Volume Type: US East (N. Virginia) ami-01f8e3bEXAMPLE CentOS 8 (HVM), SSD Volume Type: US East (N. Virginia) ami-041cEXAMPLE Fedora 34 (HVM), SSD Volume Type: US East (N. Virginia) ami-0d9cEXAMPLE

My Personal Preference: Ubuntu Server

Personally, I prefer Ubuntu Server due to its ease of setup and managed package installation. Ubuntu offers a robust package management system that simplifies the installation and updating process, making it a popular choice among developers and sysadmins.

Alternative Options: SCALR

If you are new to AWS and want to create your own images with an image builder, SCALR is an excellent tool. SCALR is a cloud management software that offers pre-made images, such as:

Ubuntu 10.04 and Ubuntu 12.04 LTS CentOS 5.7

Ubuntu 12.04 LTS is a great distribution due to its large community and extensive tutorial support. This makes it easier to handle installation and development tasks.

Direct Access to AMIs

For those looking for the latest servers and long-term support versions, you can obtain Ubuntu AMIs directly from the source. Alestic offers AMI IDs for the latest Ubuntu releases from Canonical. Eric's site is an invaluable resource for AWS users, providing detailed and up-to-date information.

Conclusion

Selecting the right base AMI is crucial to setting up a stable and efficient AWS environment. Whether you opt for Amazon Linux 2, Ubuntu Server, Debian, CentOS, or Fedora, it's essential to consider your specific requirements and select a source that ensures reliability and support. By following the guidelines and best practices discussed in this article, you can choose the ideal AMI for your AWS EC2 instance.