{
  "ignition": {
    "version": "3.3.0"
  },
  "kernelArguments": {
    "shouldExist": [
      "foobar"
    ]
  },
  "storage": {
    "files": [
      {
        "path": "/etc/testfile",
        "contents": {
          "source": "data:,test"
        },
        "mode": 420
      }
    ]
  }
}