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Bottlerocket OS

Welcome to Bottlerocket!

Bottlerocket is a free and open-source Linux-based operating system meant for hosting containers.

If you’re ready to jump right in, read one of our setup guides for running Bottlerocket in Amazon EKS, Amazon ECS, or VMware. If you're interested in running Bottlerocket on bare metal servers, please refer to the provisioning guide to get started.

Bottlerocket focuses on security and maintainability, providing a reliable, consistent, and safe platform for container-based workloads. This is a reflection of what we've learned building operating systems and services at Amazon. You can read more about what drives us in our charter.

The base operating system has just what you need to run containers reliably, and is built with standard open-source components. Bottlerocket-specific additions focus on reliable updates and on the API. Instead of making configuration changes manually, you can change settings with an API call, and these changes are automatically migrated through updates.

Some notable features include:

• API access for configuring your system, with secure out-of-band access methods when you need them.
• Updates based on partition flips, for fast and reliable system updates.
• Modeled configuration that's automatically migrated through updates.
• Security as a top priority.

Participate in the Community

There are many ways to take part in the Bottlerocket community:

• Join on Meetup to hear about the latest Bottlerocket (virtual/in-person) events and community meetings. The next community meeting is August 24, 2022.
• Start or join a discussion if you have questions about Bottlerocket.
• If you're interested in contributing, thank you! Please see our contributor's guide.

Contact us

If you find a security issue, please contact our security team rather than opening an issue.

We use GitHub issues to track other bug reports and feature requests. You can look at existing issues to see whether your concern is already known.

If not, you can select from a few templates and get some guidance on the type of information that would be most helpful. Contact us with a new issue here.

We don't have other communication channels set up quite yet, but don't worry about making an issue or a discussion thread! You can let us know about things that seem difficult, or even ways you might like to help.

Variants

To start, we're focusing on the use of Bottlerocket as a host OS in AWS EKS Kubernetes clusters and Amazon ECS clusters. We’re excited to get early feedback and to continue working on more use cases!

Bottlerocket is architected such that different cloud environments and container orchestrators can be supported in the future. A build of Bottlerocket that supports different features or integration characteristics is known as a 'variant'. The artifacts of a build will include the architecture and variant name. For example, an x86_64 build of the aws-k8s-1.21 variant will produce an image named bottlerocket-aws-k8s-1.21-x86_64-<version>-<commit>.img.

The following variants support EKS, as described above:

• aws-k8s-1.20
• aws-k8s-1.21
• aws-k8s-1.22
• aws-k8s-1.23
• aws-k8s-1.21-nvidia
• aws-k8s-1.22-nvidia
• aws-k8s-1.23-nvidia

The following variants support ECS:

• aws-ecs-1
• aws-ecs-1-nvidia

We also have variants that are designed to be Kubernetes worker nodes in VMware:

• vmware-k8s-1.20
• vmware-k8s-1.21
• vmware-k8s-1.22
• vmware-k8s-1.23

The following variants are designed to be Kubernetes worker nodes on bare metal:

• metal-k8s-1.21
• metal-k8s-1.22
• metal-k8s-1.23

The following variants are no longer supported:

• aws-k8s-1.15
• aws-k8s-1.16
• aws-k8s-1.17
• aws-k8s-1.18
• aws-k8s-1.19

We recommend users replace nodes running these variants with the latest variant compatible with their cluster.

Architectures

Our supported architectures include x86_64 and aarch64 (written as arm64 in some contexts).

Setup