docker_practice/coreos/intro.md

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# Fedora CoreOS
[Fedora CoreOS](https://getfedora.org/coreos/) 是一个自动更新的,最小的,整体的,以容器为中心的操作系统,不仅适用于集群,而且可独立运行,并针对运行 Kubernetes 进行了优化。它旨在结合 CoreOS Container Linux 和 Fedora Atomic Host 的优点,将 Container Linux 中的 [Ignition](https://github.com/coreos/ignition) 与 [rpm-ostree](https://github.com/coreos/rpm-ostree) 和 Project Atomic 中的 SELinux 强化等技术相集成。其目标是提供最佳的容器主机,以安全,大规模地运行容器化的工作负载。
## FCOS
###
FCOS Linux 40% RAM 114M PXE iPXE
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Ignition JSON FCOS systemd
Ignition initramfs Ignition systemd systemd
###
FCOS 使 rpm-ostree yum rpm-ostree OS OS 使
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FCOS **Docker CLI****podman CLI** **skopeo CLI** 使 **crictl CLI** CRI-O
##
* [](https://docs.fedoraproject.org/en-US/fedora-coreos/)
* [openshift ](https://docs.openshift.com/container-platform/4.3/architecture/architecture-rhcos.html)