b9b6da793d
- Removes references to '(currently rawhide)' on several pages. - Updates the rpm names when using versioned rpms to create a cluster.
63 lines
3.8 KiB
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63 lines
3.8 KiB
Text
= Using Kubernetes on Fedora
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Bradley G Smith,
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:revnumber: F37,F38,F39,F40,rawhide
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:revdate: 2024-07-27
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:category: Installation
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:tags: How-to, kubernetes, dnf, rpm, containers
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// Optional free form useful additional information as comment
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//include::{partialsdir}/3rdparty-message.adoc[]
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include::partial$3rdparty-message.adoc[]
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[[sect-overview]]
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== Overview
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This guide provides useful information about link:https://kubernetes.io[Kubernetes] and the Kubernetes rpms available from Fedora.
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Starting with Fedora 41 the packaging standard for Kubernetes changed from one version of Kubernetes for each Fedora release (_non-versioned_ rpms) to all versions of Kubernetes available for each release of Fedora (_versioned_ rpms - with availability subject to a link:https://go.dev[Golang] language constraint).
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These changes are documented here, including what changed, and how installation of these rpms has been affected.
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A short guide on creating a Kubernetes cluster using ```kubeadm``` is included, as a short introduction to Kubernetes for those new to this technology stack.
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The guide also touches on an alternative source for Kubernetes rpms available in link:https://copr.fedorainfracloud.org[COPR] and potential benefits.
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[[sect-what-is-kubernetes]]
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=== What is Kubernetes?
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link:https:/kubernetes.io[Kubernetes] is an "open-source system for automating deployment, scaling, and management of containerized applications" on one or more machines.
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Kubernetes automates many of the tasks necessary to deploy, manage, and scale applications that are running as a container.
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This automation is vital when managing applications in data center or cloud environment where there are 100's or 1000's of machines and a corresponding complexity in numbers of applications.Fedora provides several technologies, in addition to Kubernetes, that run containers such as link:https://docker.com[Docker] or link:https://podman.io[Podman].
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Kubernetes is now at the center of a vast ecosystem of products and services (link:https://cncf.io/[Cloud Native Computing Foundation]) that help organizations create, install, run, manage and secure container-based applications and services at any possible scale.
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Kubernetes can be used in a home lab on a single machine, a small cluster for home or business automation, edge-based services and applications in remote offices or enterprise scale production workloads in the cloud.
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This guide is narrowly focused on the Kubernetes rpms available from Fedora and using `dnf` and the command line to install these rpms on Fedora and create a basic cluster using `kubeadm`.
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Please visit the xref:virtualization-an-overview.adoc[Fedora Quick Docs Virtualization Guide] to learn more about containers and other virtualization technologies and their availability in Fedora.
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[[sect-content-guide]]
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== Content guide
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[cols="1,1"]
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|===
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|xref:using-kubernetes-basics.adoc[Basics]
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|A brief overview of Kubernetes for those new to the technology along with a terminology table.
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|xref:using-kubernetes-non-versioned.adoc[Non-versioned rpms - Fedora 40 and older]
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|The guide to the legacy, non-versioned rpm format for Kubernetes in Fedora 41, 40, and 39.
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|xref:using-kubernetes-versioned.adoc[Versioned rpms - Fedora 41 and newer]
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|The guide to the versioned rpm format for Kubernetes in Fedora 41 and newer.
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|xref:using-kubernetes-kubelet.adoc[Resilient ```kubelet``` configuration]
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| A brief guide to ```kubelet``` configuration methods.
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|xref:using-kubernetes-kubeadm.adoc[Create a cluster]
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|The guide to using ```kubeadm``` to instantiate a Kubernetes cluster on a single Fedora machine for exploration, testing, and development.
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|xref:using-kubernetes-cri-o.adoc[CRI-O and CRI-Tools]
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|The guide to the new versions of link:https://cri-o.io[CRI-O] and link:https://github.com/kuberbetes/cri-tools[CRI-Tools] available in Fedora 41 and newer.
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|===
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