• k8s
• k3s
• k3d

k8s/k3s/k3d

• 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

  • 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