= k8s/k3s/k3d =
 * Links [[k8s/MiniKube]]
 * k3s is light weight kubernetes from Rancher, that combines most of the k8s management components into singe go binary.
   * This allows for low memory footprint and makes it usable on small systems e.g. Raspbery Pi4

 * k3d is docker version of k3s, great for local testing with multiple masters and workers.
   * One gotcha (2021-11) is that on btrfs, it needs access to /dev/mapper
   * install k3d [[https://k3d.io]] {{{
curl -s https://raw.githubusercontent.com/rancher/k3d/main/install.sh | bash
}}}
   * After installing k3d and docker, Run with {{{
k3d cluster create test -s 3 -a 3 -v /dev/mapper:/dev/mapper
}}}
   * Then the normal '''kubectl''' can be used to operate the docker k8s cluster :)
   * Installed using apt  {{{
$ kubectl get nodes
NAME                STATUS   ROLES                       AGE    VERSION
k3d-test-agent-0    Ready    <none>                      74s    v1.22.6+k3s1
k3d-test-agent-1    Ready    <none>                      74s    v1.22.6+k3s1
k3d-test-agent-2    Ready    <none>                      74s    v1.22.6+k3s1
k3d-test-server-0   Ready    control-plane,etcd,master   111s   v1.22.6+k3s1
k3d-test-server-1   Ready    control-plane,etcd,master   94s    v1.22.6+k3s1
k3d-test-server-2   Ready    control-plane,etcd,master   79s    v1.22.6+k3s1
~$ 
}}}

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CategoryK8sKubernetes