the-suc.txt

the-suc

# install system upgrade controller
kubectl apply -f https://raw.githubusercontent.com/rancher/system-upgrade-controller/master/manifests/system-upgrade-controller.yaml

# First, label the target node
kubectl label node/k3d-zues-server-0 k3s-upgrade=true

# Then create the plan object in the cluster
kubectl apply -f upgrade_plan.yml

...

# upgrade-plan.yaml
apiVersion: upgrade.cattle.io/v1
kind: Plan
metadata:
  name: upgrade-plan
  namespace: system-upgrade          # created by system-upgrade controller manifest
spec:
  concurrency: 1                     # upgrade one node at a time
  cordon: true                       # make the node unschedulable
  nodeSelector:
    matchExpressions:
    - key: k3s-upgrade               # upgrade nodes that are labeled with this
      operator: In
      values:
      - "true"
  serviceAccountName: system-upgrade # created by system-upgrade controller manifest
  upgrade:
    image: rancher/k3s-upgrade       # this image does the heavy lifting
  version: v1.20.15+k3s1             # target version to upgrade to
# dont forget to change version and label node, as above