kubectl get nodes -o 'jsonpath={.items[0].status.nodeInfo.kubeletVersion}'
local version_string=v1.27.1
echo v1.27.1
v1.27.1
++ echo v1.27.1
++ cut -d. -f1
local major=v1
++ echo v1.27.1
++ cut -d. -f2
local minor=27
++ echo v1.27.1
++ cut -d. -f3
local patch=1
'[' 1 -gt 0 ']'
patch=0
local next_minor=28
echo v1.28.0
NEXT_VERSION=v1.28.0
v1.28.0
upgrade_kubernetes
echo 'Upgrading Kubernetes to version v1.28.0...'
Upgrading Kubernetes to version v1.28.0...
./talosctl-v1.4.8 -n 192.168.1.109 -e 192.168.1.109 upgrade-k8s --to v1.28.0
automatically detected the lowest Kubernetes version 1.27.1
unsupported upgrade path 1.27->1.28 (from "1.27.1" to "1.28.0")
