v1.DownwardAPIVolumeSource

{
    "defaultMode": 0,
    "items": [
        {
            "fieldRef": {
                "apiVersion": "string",
                "fieldPath": "string"
            },
            "mode": 0,
            "path": "string",
            "resourceFieldRef": {
                "containerName": "string",
                "divisor": {
                    "Format": "string"
                },
                "resource": "string"
            }
        }
    ]
}