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Add kubevirt known issue: missing calico RBAC permissions #824

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Add kubevirt known issue: missing calico RBAC permissions #824

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29 changes: 29 additions & 0 deletions docs/troubleshooting/known-issues-kubevirt.md
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Original file line number Diff line number Diff line change
Expand Up @@ -108,3 +108,32 @@ Infrastructure Cluster. You must create the namespace in advance before creating
```bash
kubectl --kubeconfig <kubevirt-infra-cluster-kubeconfig> create namespace <cld-namespace>
```


## The KubeVirt deployment fails with `cannot get resource "virtualmachineinstances" in API group "kubevirt.io"`

[Related calico issue #12972](https://github.com/projectcalico/calico/issues/12972)

When deploying KubeVirt VMs on a workload cluster running Calico `v3.32.0` installed using manifests,
VM provisioning may fail due to missing RBAC permissions in the Calico CNI plugin.

A typical error looks like this:

```
failed to query VMI resource <namespace>/<name>: virtualmachineinstances.kubevirt.io "<name>" is forbidden:
User "system:serviceaccount:kube-system:calico-cni-plugin" cannot get resource "virtualmachineinstances" in API group
"kubevirt.io" in the namespace "<namespace>"
```

**Root cause**

The manifest-based Calico installation (`v3.32.0`) is missing permissions required to access KubeVirt
VirtualMachineInstance resources.

As a result, the Calico CNI plugin cannot query KubeVirt resources, causing VM provisioning to fail.

> NOTE:
> This issue affects the workload cluster where KubeVirt is installed and VMs are provisioned. It is not related
> to the Calico version running on the k0rdent/kcm management cluster.

The issue has been fixed in calico `v3.32.1`, which includes the required RBAC permissions for KubeVirt resources.