docs/how-to-guides/upgrade-bootstrap-kubelet.md: add uncordon step
Closes
- [Step 2: Find out the IP and SSH](#step-2-find-out-the-ip-and-ssh)
- [Step 3: Upgrade kubelet on node](#step-3-upgrade-kubelet-on-node)
- [Step 4: Verify](#step-4-verify)
+ - [Step 5: Uncordon the node](#step-5-uncordon-the-node)
- [Caveats](#caveats)
## Introduction
@@ -105,6 +106,14 @@ Version: <latest_kube>
acquiring file lock on "/var/run/lock/kubelet.lock"
```
+### Step 5: Uncordon the node
+
+To finish the upgrade process, uncordon upgraded node to mark it as schedulable for pods, using
+the following command:
+```bash
+kubectl uncordon <node name>
+```
+
## Caveats
- When upgrading kubelet on nodes which are running Rook Ceph, verify that the Ceph cluster is in
