CoreOS Container Linux will reach its end-of-life on May 26, 2020 and will no longer receive updates. Fedora CoreOS is the official successor to CoreOS Container Linux.
Fedora CoreOS is built for running containerized workloads securely and at scale and It combines the provisioning tools and automatic update model of Container Linux with the packaging technology, OCI support, and SELinux security of Atomic Host.
“The Linux ecosystem evolves quickly, and software updates can bring undesired behavior changes,” the developers behind the software wrote in a post last year. “Fedora CoreOS is built to be the secure and reliable host for your compute clusters. It’s designed specifically for running containerized workloads without regular maintenance, automatically updating itself with the latest OS improvements, bug fixes, and security updates.”
However, Fedora CoreOS cannot currently replace Container Linux for all use cases. For example, it does not yet include native support for Azure, DigitalOcean, GCE, Vagrant or the Container Linux community-supported platforms. Also, the rkt runtime is not included.
Effective immediately, the CoreOS Container Linux listing on AWS Marketplace will no longer be available to new subscribers and on May 26th, the final updates to CoreOS Container Linux will begin rolling out.