Normally, ${SNAP_DATA} points to /var/snap/microK8S/current. snap.microK8S.daemon-docker, is the docker daemon started using the arguments in ${SNAP_DATA}/args/dockerd
$snap start microK8S
$microK8S.docker pull registry.cn-beijing.aliyuncs.com/google_containers/pause:3.1
$microK8S.docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.1 K8S.gcr.io/pause:3.1
for resource under namespace kube-system all-namespaces don’t include kube-system
$microK8S.kubectl describe po calico-node-4sq5r --namespace=kube-system