Here’s the Deal
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When comparing Flatcar Container Linux vs SmartOS, the Slant community recommends SmartOS for most people. In the question“What are the best host OSes for Docker?” SmartOS is ranked 7th while Flatcar Container Linux is ranked 11th. The most important reason people chose SmartOS is:
SmartOS Zones provides excellent security through isolation on bare metal.
Specs
Based OnCoreOS Container Linux
Documentationhttps://kinvolk.io/docs/
Hardware Architecturearm64, amd64
Latest Stable 2605.8.0
PublisherKinvolk GmbH
Release DateNov 19, 2020
Release Noteshttps://www.flatcar-linux.org/releases/
Supported platformsCloud Providers ( EC2 , Azure , GCE , Packet ), Virtualization Platforms ( Vagrant , VMware , VirtualBox, QEMU/KVM / libVirt) and Bare Metal Servers (PXE , iPXE , ISO , Installer)
No specs yet!
Ranked in these QuestionsQuestion Ranking
Common Questions
Pros
Pro Minimal changes required and a mature update tool in "Nabraska" with active GitHub commits
Nabraska can be configure to provide an update service in an air-gapped installation.
Pro Minimal changes required and a mature update tool in "Nabraska" with active GitHub commits
Nabraska can be configure to provide an update service in an air-gapped installation.
Pro Great container isolation
SmartOS Zones provides excellent security through isolation on bare metal.
Pro Easy networking
Each container gets it's own IP and net stack.
Pro ZFS
Pro Bare metal containers
Pro dtrace
Cons
No cons yet!
Con Not linux
Many users prefer the familiarity of Linux. (SmartOS comes from Open Solaris)