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Red Hat Linux is discontinued for a pretty long time |
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| updatemodel =
| package manager =
| succeeded by = Fedora CoreOS<br>RHEL CoreOS<br>Flatcar Container Linux
| repo = {{URL|github.com/coreos}}
}}
'''Container Linux''',
| url = https://coreos.com/blog/tectonic-self-driving.html#coreos-linux-is-now-container-linux
| title = CoreOS Linux is now Container Linux
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| author = Brian Harrington | publisher = Rackspace
| website = youtube.com
}}</ref>{{rp|7:02}} CoreOS was developed primarily by [[Alex Polvi]], Brandon Philips, and Michael Marineau,<ref name="wired-201308" /> with its major features available as a [[stable release]].<ref>{{cite web
| url = https://coreos.com/blog/stable-release/
| title = CoreOS Stable Release
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}}</ref>
The CoreOS team announced the [[End-of-life (product)|end-of-life]] for Container Linux on May 26, 2020,<ref name=eol /> offering [[Fedora (operating system)#CoreOS|Fedora CoreOS]],<ref>{{Cite web|title=Fedora CoreOS Documentation :: Fedora Docs Site|url=https://docs.fedoraproject.org/en-US/fedora-coreos/|access-date=2020-08-16|website=docs.fedoraproject.org}}</ref> and
== {{Anchor|ROCKET|APPC|ACI|OCP|OCI|RKT}}Overview ==
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| date = March 10, 2014 | access-date = January 20, 2015
| website = docker.com
}}</ref> to the operating-system-level virtualization features of the Linux kernel, as well as providing a standardized format for containers that allows applications to run in different environments.<ref name="linux.com-737364" /><ref name="coreos-containers" /> In December 2014, CoreOS released and started to support '''rkt''' (initially released as ''Rocket'') as an alternative to Docker, providing through it another standardized format of the application-container images, the related definition of the container [[runtime environment]], and a [[Communications protocol|protocol]] for discovering and retrieving container images.<ref>{{Cite web
| url = https://www.linux.com/news/featured-blogs/200-libby-clark/806347-collaboration-summit-keynote-alex-polvi-coreos
| title = CoreOS Co-Founder Alex Polvi Talks Containers, Rocket vs. Docker, and More
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| quote = Announced at the DockerCon conference in San Francisco on Monday, the Open Container Project (OCP) will maintain and develop a common container runtime and image format based in part on code and specs donated by Docker.
}}
</ref> which was announced
| url = https://techcrunch.com/2015/06/22/docker-coreos-google-microsoft-amazon-and-others-agree-to-develop-common-container-standard/
| title = Docker, CoreOS, Google, Microsoft, Amazon and others come together to develop common container standard
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}}</ref> etcd is also used in [[Kubernetes]] software.
Container Linux also provides the {{Mono|fleet}} cluster manager, which controls Container Linux's separate systemd instances at the cluster level. As of 2017, "fleet" is no longer actively developed and is deprecated in favor of
| url = https://www.digitalocean.com/community/tutorials/how-to-use-fleet-and-fleetctl-to-manage-your-coreos-cluster
| title = How To Use Fleet and Fleetctl to Manage your CoreOS Cluster
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Container Linux can also be deployed through its commercial distribution called ''Tectonic'', which additionally integrates Google's [[Kubernetes]] as a cluster management utility. {{As of|2015|04}}, Tectonic is planned to be offered as [[beta software]] to select customers.<ref name="lwn-644089" /><ref>{{cite news
| url =
| title = CoreOS is bringing Google's Kubernetes to the enterprise
| date = April 6, 2015 | access-date = April 29, 2015
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{{Clear}}
== {{Anchor|Derivatives}}Derivatives ==
Following its acquisition of CoreOS, Inc.<ref>{{Cite web|url=https://www.cnbc.com/2018/01/30/red-hat-buys-coreos-for-250-mililon.html|title=Red Hat pays $250 million for CoreOS, a start-up that sells Google-developed technology|last=Rosoff|first=Matt|date=2018-01-30|website=CNBC|language=en|access-date=2019-06-06}}</ref> in January 2018, Red Hat announced<ref>{{Cite web|url=https://coreos.com/blog/fedora-coreos-red-hat-coreos-and-future-container-linux|title=Fedora CoreOS, Red Hat CoreOS, and the future of Container Linux {{!}} CoreOS|website=coreos.com|access-date=2019-06-06}}</ref> that it would be merging CoreOS Container Linux with Red Hat's Project Atomic to create a new operating system, Red Hat CoreOS, while aligning the upstream Fedora Project open source community around Fedora CoreOS, combining technologies from both predecessors.
On March 6, 2018, Kinvolk GmbH announced Flatcar Container Linux, a derivative of CoreOS Container Linux.<ref>{{Cite web|url=https://kinvolk.io/blog/2018/03/announcing-the-flatcar-linux-project/|title=Announcing the Flatcar Linux project {{!}} Kinvolk|website=kinvolk.io|date=March 6, 2018 |access-date=2019-06-06}}</ref>
== Reception ==
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== External links ==
{{Commons category|CoreOS}}
*
* {{DistroWatch|CoreOS|name=CoreOS}}
* [http://www.sebastien-han.fr/blog/2013/09/03/first-glimpse-at-coreos/ First glimpse at CoreOS], September 3, 2013, by Sébastien Han
* [
* [
* [
* [https://github.com/coreos/fleet/blob/master/Documentation/architecture.md CoreOS fleet architecture], August 26, 2014, by Brian Waldon et al.
* [
* [https://www.phoronix.com/scan.php?page=news_item&px=CoreOS-Btrfs-To-EXT4-OverlayFS CoreOS moves from Btrfs to Ext4 + OverlayFS], [[Phoronix]], January 18, 2015, by Michael Larabel
* [https://lwn.net/Articles/646054/ Containers and persistent data], [[LWN.net]], May 28, 2015, by Josh Berkus
* [https://www.flatcar-linux.org/ Flatcar Container Linux]
{{Linux distributions}}{{Virtualization software}}
{{Linux containers}}
[[Category:Linux distributions]]
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