> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siderolabs.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ExistingVolumeConfig is an existing volume configuration document. Existing volumes allow to mount partitions (or whole disks) that were created outside of Talos. Volume will be mounted under `/var/mnt/<name>`. The existing volume config name should not conflict with user volume names.

# ExistingVolumeConfig

```yaml theme={null}
apiVersion: v1alpha1
kind: ExistingVolumeConfig
name: my-existing-volume # Name of the volume.
# The discovery describes how to find a volume.
discovery:
    # The volume selector expression.
    volumeSelector:
        match: volume.partition_label == "MY-DATA" # The Common Expression Language (CEL) expression to match the volume.
```

<table>
  <thead>
    <tr>
      <th>Field</th>
      <th>Type</th>
      <th>Description</th>
      <th>Value(s)</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>`name`</td>
      <td>string</td>
      <td>Name of the volume.<br /><br />Name can only contain:<br />lowercase and uppercase ASCII letters, digits, and hyphens.</td>

      <td />
    </tr>

    <tr>
      <td>`discovery`</td>
      <td><a href="#discovery">VolumeDiscoverySpec</a></td>
      <td>The discovery describes how to find a volume.</td>

      <td />
    </tr>

    <tr>
      <td>`mount`</td>
      <td><a href="#mount">ExistingMountSpec</a></td>
      <td>The mount describes additional mount options.</td>

      <td />
    </tr>
  </tbody>
</table>

## discovery

VolumeDiscoverySpec describes how the volume is discovered.

<table>
  <thead>
    <tr>
      <th>Field</th>
      <th>Type</th>
      <th>Description</th>
      <th>Value(s)</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>`volumeSelector`</td>
      <td><a href="#volumeselector">VolumeSelector</a></td>
      <td>The volume selector expression.</td>

      <td />
    </tr>
  </tbody>
</table>

### volumeSelector

VolumeSelector selects an existing volume.

<table>
  <thead>
    <tr>
      <th>Field</th>
      <th>Type</th>
      <th>Description</th>
      <th>Value(s)</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>`match`</td>
      <td>Expression</td>
      <td>The Common Expression Language (CEL) expression to match the volume.</td>

      <td />
    </tr>
  </tbody>
</table>

## mount

ExistingMountSpec describes how the volume is mounted.

<table>
  <thead>
    <tr>
      <th>Field</th>
      <th>Type</th>
      <th>Description</th>
      <th>Value(s)</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>`readOnly`</td>
      <td>bool</td>
      <td>Mount the volume read-only.</td>

      <td />
    </tr>

    <tr>
      <td>`disableAccessTime`</td>
      <td>bool</td>
      <td>If true, disable file access time updates.</td>

      <td />
    </tr>

    <tr>
      <td>`secure`</td>
      <td>bool</td>
      <td>Enable secure mount options (nosuid, nodev).<br /><br />Defaults to true for better security.</td>

      <td />
    </tr>
  </tbody>
</table>