move k3s to systemd

systemd/graduated/k3s/upgrade-plan.yaml

@@ -0,0 +1,19 @@
+# Server plan
+apiVersion: upgrade.cattle.io/v1
+kind: Plan
+metadata:
+  name: server-plan
+  namespace: system-upgrade
+spec:
+  concurrency: 1
+  cordon: true
+  nodeSelector:
+    matchExpressions:
+    - key: node-role.kubernetes.io/control-plane
+      operator: In
+      values:
+      - "true"
+  serviceAccountName: system-upgrade
+  upgrade:
+    image: rancher/k3s-upgrade
+  channel: https://update.k3s.io/v1-release/channels/stable