# How to Clean Luigi and Kubevirt Stale Entries After disabling the Luigin Plugins

## Problem

After disabling the Luigin plugins, stale network erslated entries are present, which results in pod creation failures with below errors:

{% tabs %}
{% tab title="Pod describe" %}

```javascript
Events:
  Type     Reason          Age                    From     Message
  ----     ------          ----                   ----     -------
  Normal   SandboxChanged  34m (x141 over 64m)    kubelet  Pod sandbox changed, it will be killed and re-created.
  Warning  FailedKillPod   3m52s (x130 over 31m)  kubelet  error killing pod: failed to "KillPodSandbox" for "exxxxxxxx" with KillPodSandboxError: "rpc error: code = Unknown desc = failed to destroy network for sandbox \"xxxx\": plugin type=\"multus\" name=\"multus-cni-network\" failed (delete): Multus: [default/testpod1]: error getting pod: Unauthorized"
```

{% endtab %}
{% endtabs %}

## Environment

* Platform9 Managed Kubernetes- 5.7.0 and higher.

## Procedure

The workaround steps to be followed are:

1. Using network plugin CRD, first disable the networks that are not needed.

{% tabs %}
{% tab title="edit" %}

```javascript
# kubectl edit networkplugins -n luigi-system -o yaml
```

{% endtab %}
{% endtabs %}

2. Comment out the plugins that are not needed and save the CRD. Check for those plugin pods and daemonsets to be deleted automatically.

**Note**- Delete the network plugin CRD for unwanted plugins.

{% tabs %}
{% tab title="yaml" %}

```javascript
# kubectl get networkplugins -A
# kubectl edit networkplugins -n luigi-system -o yaml
```

{% endtab %}
{% endtabs %}

3. Delete the '- teardownPlugins' under finalizers and run the below delete:

{% tabs %}
{% tab title="yaml" %}

```javascript
# kubectl delete networkplugins -n luigi-system   networkplugins-sample-default
```

{% endtab %}
{% endtabs %}

4. And remove multus folders and conf file under /etc/cni/net.d/ on all the nodes:

{% tabs %}
{% tab title="Multus removal" %}

```javascript
# rm -rf 00-multus.conf multus.d/
```

{% endtab %}
{% endtabs %}

5. After all the plugins are commented out and are been deleted, disable the Luigi add-on from UI.

Wait for the add-on to be removed.

{% tabs %}
{% tab title="Verify" %}

```javascript
# kubectl get all -n luigi-systemx
```

{% endtab %}
{% endtabs %}

6. Re-enabling the luigi addon works fine after this.

## Additional Information

An internal jira- PMK-6521 has been file to automate this process. And the fix will be available in upcoming PMK-5.11 version.


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