sshkeys

{
  "ignition": {
    "version": "3.0.0"
  },
  "passwd": {
    "users": [
      {
        "name": "core",
        "gecos": "CoreOS Admin",
        "groups": [
          "adm",
          "sudo",
          "systemd-journal",
          "wheel"
        ]
      }
    ]
  }
  "systemd": {
    "units": [
      {
        "enabled": true,
        "name": "afterburn-sshkeys@core.service"
      }
    ]
  }
}