Amazon Linux

Definition

Amazon Linux is a Linux distribution maintained by Amazon Web Services and optimized for running on Amazon EC2 and other AWS compute services. It is built to integrate closely with AWS infrastructure, shipping with AWS command-line tools and drivers preconfigured, and is provided at no additional licensing cost to customers running it on AWS, with a security-patch and support lifecycle tied to AWS's own release cadence.

Overview

Amazon Linux exists primarily to give AWS customers a default operating system choice that is tuned specifically for the AWS environment rather than a general-purpose distribution adapted after the fact. The current major version, Amazon Linux 2023, moved to a more traditional cadence of periodic major releases with multi-year support windows, replacing the earlier continuous-release model of Amazon Linux 2, and draws package selection and tooling conventions from Fedora and Red Hat's ecosystem while remaining its own independently maintained distribution. Mechanically, Amazon Linux images come pre-integrated with AWS-specific components: the AWS Command Line Interface, cloud-init configuration for automatic instance bootstrapping, drivers for AWS's Nitro-based virtualization and Elastic Network Adapter, and package repositories mirrored within AWS's own network to reduce download latency and cost when launching instances. It uses RPM packages and dnf for package management, and each major version publishes a defined end-of-support date so customers can plan migrations in advance. AWS also ships an Amazon Linux 2023-based minimal container image for use as a base layer in Docker builds, giving teams a smaller, security-patched starting point than a full server install when they only need enough of the OS to run a single application inside a container. Amazon Linux occupies a niche similar to other cloud-vendor-optimized distributions, such as AWS's own Bottlerocket for containers, but Amazon Linux is a general-purpose server operating system rather than a minimal container host. Compared to running Ubuntu, Debian, or Red Hat Enterprise Linux on EC2, Amazon Linux offers tighter default integration with AWS services and no separate distribution licensing fee, at the cost of being less portable outside AWS and having a smaller ecosystem of third-party documentation than more widely used general-purpose distributions. Because Amazon Linux draws heavily on Fedora and Red Hat package conventions, administrators already familiar with RPM-based distributions typically find the transition straightforward, even though Amazon Linux itself is not a rebuild of Red Hat Enterprise Linux. In practice, teams choose Amazon Linux for EC2 fleets, AWS Lambda's underlying runtime environment, and container base images intended to run on Amazon ECS or EKS, particularly when minimizing operational overhead and staying closely aligned with AWS's own testing and support matrix matters more than distribution portability. The main limitation is lock-in: workloads built around Amazon Linux-specific tooling or expectations can be harder to migrate to other clouds or on-premises environments, and its smaller install base outside AWS means community troubleshooting resources are less abundant than for Ubuntu or Debian. Teams prioritizing multi-cloud portability often standardize on a widely used general-purpose distribution instead.

Key Features

• Pre-integrated AWS CLI, cloud-init, and Nitro virtualization drivers
• No additional distribution licensing cost when run on AWS
• RPM packaging with dnf, drawing conventions from the Fedora ecosystem
• Defined major-version support lifecycle with published end-of-life dates
• In-network package repositories that reduce latency for AWS-hosted instances
• Underlying runtime environment for AWS Lambda functions
• Optimized kernel tuning for EC2 instance types and networking

Use Cases

Alternatives

Frequently Asked Questions

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