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AWS Using Bottlerocket Linux For Container Hosting

AWS has revealed that Bottlerocket Linux is the operating system (OS) it is using for container hosting....
AWS Using Bottlerocket Linux For Container Hosting
Written by Matt Milano
  • AWS has revealed that Bottlerocket Linux is the operating system (OS) it is using for container hosting.

    Containers are packages containing all the apps, code, libraries and dependencies necessary to run. Containers can be easily moved from one host to another, without worrying about the underlying OS and environment. Containers can also be managed to prevent any one app or process from hogging a system’s resources, making them the ideal way to scale cloud, hosting and IT systems.

    Bottlerocket is a new Linux distribution that AWS designed and optimized specifically to work with containers.

    “Bottlerocket reflects much of what we have learned over the years,” writes Jeff Barr, Chief Evangelist for AWS. “It includes only the packages that are needed to make it a great container host, and integrates with existing container orchestrators. It supports Docker image and images that conform to the Open Container Initiative (OCI) image format.

    “Instead of a package update system, Bottlerocket uses a simple, image-based model that allows for a rapid & complete rollback if necessary. This removes opportunities for conflicts and breakage, and makes it easier for you to apply fleet-wide updates with confidence using orchestrators such as EKS.

    “In addition to the minimal package set, Bottlerocket uses a file system that is primarily read-only, and that is integrity-checked at boot time via dm-verity. SSH access is discouraged, and is available only as part of a separate admin container that you can enable on an as-needed basis and then use for troubleshooting purposes.”

    AWS is launching a public preview of the OS and inviting others to try it.

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