k3d-io / k3d

Little helper to run CNCF's k3s in Docker

Home Page:https://k3d.io/

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k3d

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k3s is the lightweight Kubernetes distribution by Rancher: k3s-io/k3s

k3d creates containerized k3s clusters. This means, that you can spin up a multi-node k3s cluster on a single machine using docker.

asciicast

Note: k3d is a community-driven project but it's not an official Rancher (SUSE) product. Sponsoring: To spend any significant amount of time improving k3d, we rely on sponsorships:

Learning

Requirements

  • docker
    • Note: k3d v5.x.x requires at least Docker v20.10.5 (runc >= v1.0.0-rc93) to work properly (see #807)

Releases

  • May 2020: v1.7.x -> v3.0.0 (rewrite)
  • January 2021: v3.x.x -> v4.0.0 (breaking changes)
  • September 2021: v4.4.8 -> v5.0.0 (breaking changes)
Platform Stage Version Release Date Downloads so far
GitHub Releases stable GitHub release (latest by date) GitHub Release Date GitHub Release Downloads
GitHub Releases latest GitHub release (latest by date including pre-releases) GitHub (Pre-)Release Date GitHub Release Downloads (incl. Pre-Releases)
Homebrew stable homebrew - -
Chocolatey stable chocolatey - -
Scoop stable scoop - -

Get

You have several options there:

  • use the install script to grab the latest release:

    • wget: wget -q -O - https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | bash
    • curl: curl -s https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | bash
  • use the install script to grab a specific release (via TAG environment variable):

    • wget: wget -q -O - https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | TAG=v5.0.0 bash
    • curl: curl -s https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | TAG=v5.0.0 bash
  • use Homebrew: brew install k3d (Homebrew is available for MacOS and Linux)

  • install via MacPorts: sudo port selfupdate && sudo port install k3d (MacPorts is available for MacOS)

  • install via AUR package rancher-k3d-bin: yay -S rancher-k3d-bin

  • grab a release from the release tab and install it yourself.

  • install via go: go install github.com/k3d-io/k3d/v5@latest (Note: this will give you unreleased/bleeding-edge changes)

  • use Chocolatey: choco install k3d (Chocolatey package manager is available for Windows)

  • use Scoop: scoop install k3d (Scoop package manager is available for Windows)

or...

Build

  1. Clone this repo, e.g. via git clone git@github.com:k3d-io/k3d.git or go get github.com/k3d-io/k3d/v5@main
  2. Inside the repo run
    • 'make install-tools' to make sure required go packages are installed
  3. Inside the repo run one of the following commands
    • make build to build for your current system
    • go install to install it to your GOPATH (Note: this will give you unreleased/bleeding-edge changes)
    • make build-cross to build for all systems

Usage

Check out what you can do via k3d help or check the docs @ k3d.io

Example Workflow: Create a new cluster and use it with kubectl

  1. k3d cluster create CLUSTER_NAME to create a new single-node cluster (= 1 container running k3s + 1 loadbalancer container)
  2. [Optional, included in cluster create] k3d kubeconfig merge CLUSTER_NAME --kubeconfig-switch-context to update your default kubeconfig and switch the current-context to the new one
  3. execute some commands like kubectl get pods --all-namespaces
  4. k3d cluster delete CLUSTER_NAME to delete the default cluster

Connect

  1. Join the Rancher community on slack via slack.rancher.io
  2. Go to rancher-users.slack.com and join our channel #k3d
  3. Start chatting

History

This repository is based on @zeerorg's zeerorg/k3s-in-docker, reimplemented in Go by @iwilltry42 in iwilltry42/k3d, which got adopted by Rancher in rancher/k3d and was now moved into its own GitHub organization at k3d-io/k3d.

Related Projects

  • k3x: GUI (Linux) to k3d
  • vscode-k3d: vscode plugin for k3d
  • AbsaOSS/k3d-action: fully customizable GitHub Action to run lightweight Kubernetes clusters.
  • AutoK3s: a lightweight tool to help run K3s everywhere including k3d provider.
  • nolar/setup-k3d-k3s: setup K3d/K3s for GitHub Actions.

Contributing

k3d is a community-driven project and so we welcome contributions of any form, be it code, logic, documentation, examples, requests, bug reports, ideas or anything else that pushes this project forward.

Please read our Contributing Guidelines and the related Code of Conduct.

You can find an overview of the k3d project (e.g. explanations and a repository guide) in the documentation: k3d.io/stable/design/project/

Contributor Covenant

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Thorsten Klein
Thorsten Klein

πŸ’» πŸ“– πŸ€” 🚧
Rishabh Gupta
Rishabh Gupta

πŸ€” πŸ’»
Louis Tournayre
Louis Tournayre

πŸ“–
Lionel Nicolas
Lionel Nicolas

πŸ’»
Toon Sevrin
Toon Sevrin

πŸ’»
Dennis Hoppe
Dennis Hoppe

πŸ“– πŸ’‘
Jonas Dellinger
Jonas Dellinger

πŸš‡
markrexwinkel
markrexwinkel

πŸ“–
Alvaro
Alvaro

πŸ’» πŸ€” πŸ”Œ
Nuno do Carmo
Nuno do Carmo

πŸ–‹ βœ… πŸ’¬
Erwin Kersten
Erwin Kersten

πŸ“–
Alex Sears
Alex Sears

πŸ“–
Mateusz Urbanek
Mateusz Urbanek

πŸ’»
Benjamin Blattberg
Benjamin Blattberg

πŸ’»
Simon Baier
Simon Baier

πŸ’»
Ambrose Chua
Ambrose Chua

πŸ’»
Erik Godding Boye
Erik Godding Boye

πŸ’»
York Wong
York Wong

πŸ’»
Raul Gonzales
Raul Gonzales

πŸ’» πŸ“–
Sunghoon Kang
Sunghoon Kang

πŸ’»
Kamesh Sampath
Kamesh Sampath

πŸ’»
Arik Maor
Arik Maor

πŸ’» βœ… πŸ’‘
Danny Gershman
Danny Gershman

πŸ’»
stopanko
stopanko

πŸ’΅

This project follows the all-contributors specification. Contributions of any kind welcome!

Sponsors

Thanks to all our amazing sponsors! πŸ™

About

Little helper to run CNCF's k3s in Docker

https://k3d.io/

License:MIT License


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