kubeadm never rotates sa.key/sa.pub, so there is no need to delete tokens/restart pods
Signed-off-by: Etienne Champetier <e.champetier@ateme.com>
(cherry picked from commit 8800b5c01d)
Since it is unsupported to skip upgrades, I've detailed the steps for upgrading a step at a time and removed some language that indicated it should work
Clarify that the `kube_version` environment variable is needed for the CLI "graceful upgrade". Also add and example to check that the upgrade was successful.
Based on #718 introduced by rsmitty.
Includes all roles and all options to support deployment of
new hosts in case they were added to inventory.
Main difference here is that master role is evaluated first
so that master components get upgraded first.
Fixes#694
