Drained nodes report as Ready in the overview

[sarg3nt]

I understand that the node is still technically in a ready state so it might not be appropriate to show them as not ready in the "Ready" panel (I would argue that it is the right thing to do, but others may not agree)
As a cluster admin we need the ability to quickly see the the status of the nodes. Not just are they "Ready" but are they schedulable.

Suggestions:

• Change the Ready panel to show drained and cordoned nodes. It might say 6 / 6 Ready, 1 / 6 Drained, 1 / 6 Cordoned.
  • It would be nice to have three smaller gauges in the box or three horizontal bar graphs, whatever makes sense.
  • Hovering over the box should show which nodes have issues.

OR

• Add two more panels, one for drained nodes and one for cordoned nodes?

As a bonus, hovering over the "Pods" box should show pods that are having any issues.

[sarg3nt]

remove-lifecycle stale

[joaquimrocha]

@skoeva Can you check this one out?