https://ubuntu.com/tutorials/install-a-local-kubernetes-with-microk8s
sudo snap install microk8s --classic
sudo snap refresh microk8s --channel=1.19/candidate --classic
    https://ubuntu.com//blog/strictly-confined-microk8s
    https://github.com/canonical/microk8s/blob/master/snap/snapcraft.yaml

win10
https://javamana.com/2021/05/20210506080313669a.html