support sealer cmd sealer scaleup -f clusterfile

[kakaZhou719]

Issue Description

Type: feature request

Describe what feature you want

sealer scaleup -f clusterfile: will scale up the cluster node with differ between clusterfile and current cluster.

Additional context

Add any other context or screenshots about the feature request here.

[justadogistaken]

@kakaZhou719
Could you help add more info for this feature?
Is there the scaledown should be supported too?
I hope that the more info contains background and scenes.

[kakaZhou719]

@kakaZhou719 Could you help add more info for this feature? Is there the scaledown should be supported too? I hope that the more info contains background and scenes.

this sub cmd only do scaleup thing, equivalent to sealer join, This is because join are emitted from node, and sealer scaleup are emitted from the cluster compared with kubeadm join. What about your suggestion？

[justadogistaken]

But I think it also could be achived by sealer join -f ...? Do we really need to come up with a new sub command?