Review: AWS Bottlerocket vs. Google Container-Optimized OS

Container-Optimized OS offers tremendous advantages for container workloads on Google Cloud Platform, but Bottlerocket is a better choice everywhere else

Review: AWS Bottlerocket vs. Google Container-Optimized OS
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At a Glance

Running large numbers of containers to deploy an application requires a rethink of the role of the operating system. Google’s Container-Optimized OS and AWS’s Bottlerocket take the traditional virtualization paradigm and apply it to the operating system, with containers the virtual OS and a minimal Linux fulfilling the role of the hypervisor.

Various flavors of Linux optimized for containers have been around for a few years and have evolved ever smaller footprints as the management and user-land utilities moved to the  cluster management layer or to containers. These container-optimized operating systems are ideal when you need to run applications in Kubernetes with minimal setup and do not want to worry about security or updates, or want OS support from your cloud provider.

Container OSs solve several issues commonly encountered when running large container clusters, such as keeping up with OS vulnerabilities and patching potentially hundreds of instances, updating packages while dealing with potentially conflicting dependencies, degraded performance from a large dependency tree, and other OS headaches. The job is challenging enough with a few racks of servers and nearly impossible without infrastructure support when managing thousands.

AWS Bottlerocket 

Bottlerocket is purpose-built for hosting containers in Amazon infrastructure. It runs natively in Amazon Elastic Kubernetes Service (EKS), AWS Fargate, and Amazon Elastic Container Service (ECS).

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