The local attachment type can be used to make a locally available block device that already exists available as an Attachment object for the ImageAPI. This can allow, e.g. a local disk to be mounted. This attachment type will fail if the device file does not exists, or if the device is not a block device.
Example of a Local attachment specification:
{
"kind": "local",
"local": {
"path": "/dev/sda"
}
}